Solidification Process(2) - Polymer Processing (Chapter 8, 12)
|
|
- Mervin Park
- 5 years ago
- Views:
Transcription
1 Solidification Process(2) - Polymer Processing (Chapter 8, 12) Seok-min Kim smkim@cau.ac.kr
2 Plastic Products Plastics can be shaped into a wide variety of products: Molded parts Extruded sections Films Sheets Insulation coatings on electrical wires Fibers for textiles Paints and varnishes Adhesives Various polymer matrix composites -2-
3 Trends in Polymer Processing Applications of plastics have increased at a much faster rate than either metals or ceramics during the last 50 years Many parts previously made of metals are now being made of plastics Plastic containers have been largely substituted for glass bottles and jars Total volume of polymers (plastics and rubbers) now exceeds that of metals -3-
4 Polymer A compound consisting of long-chain molecules, each molecule made up of repeating units connected together There may be thousands, even millions of units in a single polymer molecule The word polymer is derived from the Greek words poly, meaning many, and meros (reduced to mer), meaning part Most polymers are based on carbon and are therefore considered organic chemicals -4-
5 Synthesis of Polymers ( 폴리머합성 ) Nearly all polymers used in engineering are synthetic They are made by chemical processing Polymers are synthesized by joining many small molecules together into very large molecules, called macromolecules, that possess a chain-like structure The small units, called monomers, are generally simple unsaturated organic molecules such as ethylene C 2 H 4-5-
6 Linear, Branched, and Cross-linked Polymers Linear structure chain-like structure (Characteristic of thermoplastic polymers ) Branched structure chain-like but with side branches (Also found in thermoplastic polymers) Cross-linked structure - Loosely cross-linked, as in an elastomer - Tightly cross-linked, as in a thermoset -6-
7 Thermoplastic Polymers (TP) A thermoplastic polymer can be heated from a solid state to a viscous liquid state and then cooled back down to solid This heating and cooling cycle can be repeated multiple times without degrading the polymer The reason is that TP polymers consist of linear (and/or branched) macromolecules that do not cross-link upon heating By contrast, thermosets and elastomers change chemically when heated, which cross-links their molecules and permanently sets these polymers -7-
8 Mechanical Properties of Thermoplastics Low modulus of elasticity (stiffness) E is two or three orders of magnitude lower than metals and ceramics Low tensile strength TS is about 10% of the metal Much lower hardness than metals or ceramics Greater ductility on average Tremendous range of values, from 1% elongation for polystyrene to 500% or more for polypropylene -8-
9 Thermosetting Polymers (TS) TS polymers are distinguished by their highly cross-linked three-dimensional, covalently-bonded structure within the molecule Chemical reactions associated with cross-linking are called curing or setting In effect, the formed part (e.g., pot handle, electrical switch cover, etc.) becomes one large macromolecule Always amorphous and exhibits no glass transition temperature -9-
10 General Properties and Characteristics of Thermosets Rigid - modulus of elasticity is two to three times greater than TP Brittle, virtually no ductility Less soluble than TP in common solvents Capable of higher service temperatures than TP Cannot be remelted - instead they degrade or burn -10-
11 Elastomers Polymers capable of large elastic deformation when subjected to relatively low stresses Some can be extended 500% or more and still return to their original shape Two categories: - Natural rubber - derived from biological plants - Synthetic polymers - produced by polymerization processes similar to those used for thermoplastic and thermosetting polymers -11-
12 Classification of Shaping Processes Extruded products with constant cross-section Continuous sheets and films Continuous filaments (fibers) Molded parts that are mostly solid Hollow molded parts with relatively thin walls Discrete parts made of formed sheets and films Castings Foamed products -12-
13 Extrusion Compression process in which material is forced to flow through a die orifice to provide long continuous product whose cross-sectional shape is determined by the shape of the orifice Widely used for thermoplastics and elastomers to mass produce items such as tubing, pipes, hose, structural shapes, sheet and film, continuous filaments, and coated electrical wire Carried out as a continuous process; extrudate is then cut into desired lengths -13-
14 Extruder Screw Divided into sections to serve several functions: Feed section - feedstock is moved from hopper and preheated Compression section - polymer is transformed into fluid, air mixed with pellets is extracted from melt, and material is compressed Metering section - melt is homogenized and sufficient pressure developed to pump it through die opening -14-
15 Die End of Extruder Before reaching die, the melt passes through a screen pack - series of wire meshes supported by a stiff plate containing small axial holes Functions of screen pack: Filter out contaminants and hard lumps Build pressure in metering section Straighten flow of polymer melt and remove its "memory" of circular motion from screw -15-
16 Extrusion Die(1) Solid Cross Section Hollow Shapes -16-
17 Extrusion Die for Coating Wire Figure Side view cross-section of die for coating of electrical wire by extrusion. -17-
18 Slit Die Extrusion Production of sheet and film by conventional extrusion, Slit may be up to 3 m wide and as narrow as around 0.4 mm A problem is uniformity of thickness throughout width of stock, due to drastic shape change of polymer melt as it flows through die Edges of film usually must be trimmed because of thickening at edges -18-
19 Calendering Feedstock is passed through a series of rolls to reduce thickness to desired gage Expensive equipment, high production rates Process is noted for good surface finish and high gage accuracy Typical materials: rubber or rubbery thermoplastics such as plasticized PVC Products: PVC floor covering, shower curtains, vinyl table cloths, pool liners, and inflatable boats and toys -19-
20 Injection Molding Polymer is heated to a highly plastic state and forced to flow under high pressure into a mold cavity where it solidifies and the molding is then removed from cavity Produces discrete components almost always to net shape Typical cycle time 10 to 30 sec, but cycles of one minute or more are not uncommon Mold may contain multiple cavities, so multiple moldings are produced each cycle -20-
21 Injection molding process Polymer 를 Hopper 로부터 Barrel 내로투입, Heater 와 screw 회전에의한마찰열로용융 Screw 회전으로용융수지를 screw 전방으로이동 Hydraulic unit force 로용융수지를 delivery system 을통해 cavity 내로충진 용융수지가충분히고화, 냉각될때까지냉각후취출 -21-
22 Injection molding process -22-
23 1. 가소화과정 (Plasticating Phase) -23-
24 2. 충진과정 (Filling Phase) -24-
25 3. 보압과정 (Packing Phase) -25-
26 4. 냉각과정 (Cooling Phase) -26-
27 Injection machine Cycle Mold is closed Melt is injected into cavity Screw is retracted -27- Mold opens
28 Injection Molded Parts Complex and intricate shapes are possible Shape limitations: Capability to fabricate a mold whose cavity is the same geometry as part Shape must allow for part removal from mold Injection molding is economical only for large production quantities due to high cost of mold -28-
29 Injection Molding Machine Two principal components: 1. Injection unit Melts and delivers polymer melt Operates much like an extruder 2. Clamping unit Opens and closes mold each injection cycle -29-
30 Injection Unit of Molding Machine Consists of barrel fed from one end by a hopper containing supply of plastic pellets Inside the barrel is a screw which: 1. Rotates for mixing and heating polymer 2. Acts as a ram (i.e., plunger) to inject molten plastic into mold Non-return valve near tip of screw prevents melt flowing backward along screw threads Later in molding cycle ram retracts to its former position -30-
31 Clamping Unit of Molding Machine Functions: 1. Holds two halves of mold in proper alignment with each other 2. Keeps mold closed during injection by applying a clamping force sufficient to resist injection force 3. Opens and closes mold at the appropriate times in molding cycle Types: 1. Toggle 2. Hydraulic -31-
32 The Mold The special tool in injection molding Custom-designed and fabricated for the part to be produced When production run is finished, the mold is replaced with a new mold for the next part Various types of mold for injection molding: Two-plate mold Three-plate mold Hot-runner mold -32-
33 유동시스템 1) 스푸루 (sprue) system 금형의입구에해당하는것으로용융된수지를러너에보내는역할 2) 러너 (Runner) 1러너의기능 : 러너의기능은성형기노즐에서밀려나온수지를캐비티까지안내하는길역할 2러너의설계시고려할사항 (a) 캐비티의개수및배열에따라배치방법을결정한다. (b) 수지의온도저하가최소가되도록한다. (c) 러너에서압력손실이최소가될수있는구조로한다. (d) 러너의체적은될수있는한작게되도록한다. 3콜드슬러그웰 : 고화된수지가캐비티안으로유입되는것을막음 -33-
34 3) 게이트 1 게이트의역할 - 충진되는용융수지의흐름방향과유량을제어러너측으로역류를방지한다. - 스프루, 러너를통과냉각된수지는좁은게이트를통과하는동안유동속도가빨라져마찰열이발생, - 러너가성형품에서용이하게절단되도록한다. 2 게이트의위치 - 게이트는성형품의가장두꺼운부분에설치하는것을원칙으로한다. - 성형품은외관상눈에띄지않는곳, 성형후게이트의끝손질이용이한부분에설치한다. - 웰드라인이생기지않는곳이나안보이는위치에설치한다. 3 게이트의크기 - 충진시간은게이트가클수록유리 - 잔류응력에의한변형, 휨에관해서는게이트가작은쪽이유리 -34-
35 Two-Plate Mold -35-
36 Two-Plate Mold Features Cavity geometry of part but slightly oversized to allow for shrinkage Created by machining of mating surfaces of two mold halves Distribution channel through which polymer melt flows from nozzle into mold cavity Sprue - leads from nozzle into mold Runners - lead from sprue to cavity (or cavities) Gates - constrict flow of plastic into cavity -36-
37 More Two-Plate Mold Features Ejection system to eject molded part from cavity at end of molding cycle Ejector pins built into moving half of mold usually accomplish this function Cooling system - consists of external pump connected to passageways in mold, through which water is circulated to remove heat from the hot plastic Air vents to permit evacuation of air from cavity as polymer melt rushes in -37-
38 Three-Plate Mold -38-
39 Hot-Runner Mold Eliminates solidification of sprue and runner by locating heaters around the corresponding runner channels While plastic in mold cavity solidifies, material in sprue and runner channels remains molten, ready to be injected into cavity in next cycle Advantage: Saves material that otherwise would be scrap in the unit operation -39-
40 Shrinkage Reduction in linear size during cooling from molding to room temperature Polymers have high thermal expansion coefficients, so significant shrinkage occurs during solidification and cooling in mold Typical shrinkage values: Plastic Shrinkage, mm/mm (in/in) Nylon-6, Polyethylene Polystyrene PVC
41 Shrinkage Factors Fillers in the plastic tend to reduce shrinkage Injection pressure higher pressures force more material into mold cavity to reduce shrinkage Compaction time - similar effect longer time forces more material into cavity to reduce shrinkage Molding temperature - higher temperatures lower polymer melt viscosity, allowing more material to be packed into mold to reduce shrinkage -41-
42 Transfer Molding TS charge is loaded into a chamber immediately ahead of mold cavity, where it is heated; pressure is then applied to force soft polymer to flow into heated mold where it cures -42-
43 Bonding and Packing Schematic illustrations of IC packing Chip-on-board attachment -43-
44 Transfer-molding press schematic Runner design -44-
45 Blow Molding Molding process in which air pressure is used to inflate soft plastic into a mold cavity Important for making one-piece hollow plastic parts with thin walls, such as bottles Because these items are used for consumer beverages in mass markets, production is typically organized for very high quantities -45-
46 Thermoforming Flat thermoplastic sheet or film is heated and deformed into desired shape using a mold Heating usually accomplished by radiant electric heaters located on one or both sides of starting plastic sheet or film Widely used in packaging of products and to fabricate large items such as bathtubs, contoured skylights, and internal door liners for refrigerators -46-
47 Thermoforming -47-
48 Product Design Guidelines: Moldings Wall thickness Thick cross sections are wasteful of material, more likely to cause warping due to shrinkage, and take longer to harden Reinforcing ribs Achieves increased stiffness without excessive wall thickness Ribs should be made thinner than the walls they reinforce to minimize sink marks on outside wall -48-
49 Product Design Guidelines: Moldings Corner radii and fillets Sharp corners, both external and internal, are undesirable in molded parts They interrupt smooth flow of the melt, tend to create surface defects, and cause stress concentrations in the part Holes Holes are quite feasible in plastic moldings, but they complicate mold design and part removal -49-
Extrusion. Key Issues to Address. Lecture 2. Process. Process Variants. Process Analysis. Problem Solving
Extrusion Lecture 2 Chapter 4 Key Issues to Address Process Process Variants Process Analysis Problem Solving S.V. Atre 1 Extrusion Material is forced to flow through a die orifice to provide long continuous
More informationSME 2713 Processing of Polymers - 2
SME 2713 Processing of Polymers - 2 Outline 1. Introduction 2. Extrusion process 3. Injection molding process 4. Blow molding process 5. Rotational molding 6. Thermoforming 7. Compression molding 8. Transfer
More informationChapter 15-2: Processing of Polymers
Chapter 15-2: Processing of Polymers ISSUES TO ADDRESS... Other issues in polymers What are the primary polymer processing methods? Chapter 15-1 Polymer Synthesis Reactions There are two types of polymerization
More informationChapter 19. Forming and Shaping Plastics and Composite Materials
Chapter 19 Forming and Shaping Plastics and Composite Materials Characteristics of Forming and Shaping Processes for Plastics and Composite Materials Forming and Shaping Processes for Plastics, Elastomers,
More informationChapter 19. Forming and Shaping Plastics and Composite Materials
Chapter 19 Forming and Shaping Plastics and Composite Materials Characteristics of Forming and Shaping Processes for Plastics and Composite Materials 1 Forming and Shaping Processes for Plastics, Elastomers,
More informationBFF1113 Engineering Materials DR. NOOR MAZNI ISMAIL FACULTY OF MANUFACTURING ENGINEERING
BFF1113 Engineering Materials DR. NOOR MAZNI ISMAIL FACULTY OF MANUFACTURING ENGINEERING Course Guidelines: 1. Introduction to Engineering Materials 2. Bonding and Properties 3. Crystal Structures & Properties
More informationProcessing Guide CONTENTS
CONTENTS INTRODUCTION SAFETEY GUIDELINES EQUIPMENT PROCESSING o INJECTION MOLDING GENERAL CONDITIONS START UP MOLD FILLING DRYING REGRIND SHRINKAGE o DESIGN RUNNERS AND GATES VENTING MOLD SURFACES EJECTION
More informationPLASTICS AND ELASTOMERS
PLASTICS AND ELASTOMERS Application Examples Household appliances For packing, containers For housing & bodies of machines Insulator for electrical devices Fillers foams Household articles, furniture Composites
More informationReview of Manufacturing Processes
Review of Manufacturing Processes ME 682 Dr. Han P. Bao Mechanical Engineering, ODU ME 682 Module 3 1 Engineering Materials The four major categories: Metal Plastics Ceramics Composites 1- Metals: Cast:
More informationUnit 156: Polymer Manufacturing Processes
Unit 156: Polymer Manufacturing Processes Unit code J/615/3315 Unit level 4 Credit value 15 Aim This unit is designed to develop students knowledge and understanding of the main manufacturing processes
More informationPolymers. Historical Classification
Polymers The term polymer implies many "mers" or the building blocks...similar to the unit cell in metals. A polymer is a chemical compound or mixture of compounds formed by a process called polymerization,
More informationChapter 15: Characteristics, Applications & Processing of Polymers
Chapter 15: Characteristics, Applications & Processing of Polymers What are the tensile properties of polymers and how are they affected by basic microstructural features? Hardening, anisotropy, and annealing
More informationPLASTICS. Disadvantages: Expensive Combustible Poor ductility High softness Deformation under load Low heat resistance.
PLASTICS Plastics: An organic substance which changes its shape by the application of heat and pressure is called Plastics. This is done in presence of catalyst. Properties: These are usually light in
More informationInjection Molding Fall 2002 Professor Tim Gutowski
Injection Molding 2.810 Fall 2002 Professor Tim Gutowski Short history of plastics 1862 first synthetic plastic 1866 Celluloid 1891 Rayon 1907 Bakelite 1913 Cellophane 1926 PVC 1933 Polyethylene 1938 Teflon
More information2/19/2009. Plastics History. Plastics type INTRODUCTION. Thermosets RM1565 MOULD DESIGN. Generalproperties: more durable, harder, tough, light.
INTRODUCTION RM1565 MOULD DESIGN bpram Plastics History Plastics type Thermosets Generalproperties: more durable, harder, tough, light. Typical uses: automobile parts, construction materials. Unsaturated
More informationTable of Contents. Robert A. Malloy. Plastic Part Design for Injection Molding. An Introduction ISBN:
Table of Contents Robert A. Malloy Plastic Part Design for Injection Molding An Introduction ISBN: 978-3-446-40468-7 For further information and order see http://www.hanser.de/978-3-446-40468-7 or contact
More informationIntroduction: Standard Plastic Terminology Plastic Program Analysis and Development p. 1 Selecting the Design Team for Success p. 3 Using Checklists
Preface p. xv Introduction: Standard Plastic Terminology p. xix Plastic Program Analysis and Development p. 1 Selecting the Design Team for Success p. 3 Using Checklists to Develop Product Requirements
More informationCHAPTER - 1 INTRODUCTION
CHAPTER - 1 INTRODUCTION 1. 1.1 Polymer Matrix Composites Composite materials are formed by combining two or more materials that have different properties. The constituent materials work together to give
More informationMethods of manufacture
1 Methods of manufacture For Ceramics (see (b)) Crush raw materials Shape the crushed raw materials (various means) Dry & fire Apply finishing operations, as needed; to achieve required dimensional tolerances
More informationTHERMOSET. 1.Resin Transfer Moulding 2.Pultrusion 3.SMC / DMC Moulding 4.Compression Moulding 5.GRP Moulding 6.RIM 7.
Polymer Processing Plastics Rubber Thermoplastics Elastomers Fibers Plastics Plastics Processing Conversion of a plastic materials in to finally finished products is termed plastics processing. Depends
More informationMATERIAL PROCESSING GUIDE
MATERIAL PROCESSING GUIDE Pocket Reference COMPOSITE PELLETS Introduction to Long Fiber Material & Machine Preparation Machine Operation Problem Solving Typical Processing Guidelines Introduction to Long
More informationINJECTION MOLDING DESIGN GUIDELINES
INJECTION MOLDING DESIGN GUIDELINES INJECTION MOLDED PARTS Injection molding is used for manufacturing a wide variety of parts, from small components like AAA battery boxes to large components like truck
More informationInjection Molding T. Gutowski. D. Roylance 1
Injection Molding 2.810 T. Gutowski D. Roylance 1 V-6 air intake manifold Water control valve Brass Vs injection mold www.mnrubber.com 2 Short history of plastics 1866 Celluloid 1891 Rayon 1907 Bakelite
More informationIndustrial aspects of polymer processing
Course MP10 Lecture 2 Industrial aspects of polymer processing Ben, I just want to say one word to you, just one word plastics Dr James Elliott 2.1 General model of polymer processing Overview of the various
More informationMANUFACTURING TECHNOLOGY
MANUFACTURING TECHNOLOGY UNIT II Hot & Cold Working Forging & Rolling Mechanical Working of Metals In this method no machining process is carried out, but it is used to achieve optimum mechanical properties
More informationProcessing of Non- Metals Prof. Dr. Inderdeep Singh Department of Mechanical and Industrial Engineering Indian Institute of Technology, Roorkee
Processing of Non- Metals Prof. Dr. Inderdeep Singh Department of Mechanical and Industrial Engineering Indian Institute of Technology, Roorkee Module - 4 Plastics: Properties and Processing Lecture -
More information1 Polymer Processing. 1.1 Introduction
1 Polymer Processing 1.1 Introduction Polymeric materials often called plastics in popular usage are ubiquitous in modern life. Applications range from film to textile fibers to complex electronic interconnects
More informationAQA GCSE Design and Technology 8552
AQA GCSE Design and Technology 8552 Polymers Unit 3 Materials and their working properties 4 Objectives Know the primary sources of materials for producing polymers Be able to recognise and characterise
More informationChapter 6 Plastic and Polymer Composite Fabrication Processes
Chapter 6 Plastic and Polymer Composite Fabrication Processes Screen on batch size* Molding Processes for PE: Molding Processes for Nylon (30% GF): Desired Batch Size 1e+008 1e+007 1e+006 Blow Moulding
More informationInjection Molding APPENDIX A A.1 INTRODUCTION
APPENDIX A Injection Molding A.1 INTRODUCTION Injection molding is a process where solid plastic is melted, injected into a mold, and then cooled back to a solid as shown in Figure A.1. Plastic injection
More informationDESIGN, ANALYSIS AND MANUFACTURING OF THERMOFORMING TOOL FOR DISPOSAL CUPS
DESIGN, ANALYSIS AND MANUFACTURING OF THERMOFORMING TOOL FOR DISPOSAL CUPS AMEENA TAHERA 1, T.J.JITENDRA 2 1 STUDENT,M TECH (PDM),Department of Industrial Engineering and Management, JSS Academy of technical
More informationStress-Strain Behavior
15-1 CHAPTER 15 CHARACTERISTICS, APPLICATIONS, AND PROCESSING OF POLYMERS PROBLEM SOLUTIONS Stress-Strain Behavior which is 15.1 From Figure 15.3, the elastic modulus is the slope in the elastic linear
More informationFundamentals of Casting
Fundamentals of Casting Chapter 11 11.1 Introduction Products go through a series of processes before they are produced Design Material selection Process selection Manufacture Inspection and evaluation
More informationAutodesk Moldflow Communicator Molding processes
Autodesk Moldflow Communicator 2012 Molding processes Revision 1, 23 March 2011. Contents Chapter 1 Molding processes..................................... 1 Thermoplastic injection molding analysis types
More informationMECHANICAL PROPERTIES OF MATERIALS
MECHANICAL PROPERTIES OF MATERIALS Stress-Strain Relationships Hardness Effect of Temperature on Properties Fluid Properties Viscoelastic Behavior of Polymers Mechanical Properties in Design and Manufacturing
More informationELEMENTARY STEPS SHAPING METHODS POST SHAPING DIE FORMING HANDLING OF PARTICULATE SOLIDS MOLDING & CASTING MELTING PRESSURISATION & PUMPING
ELEMENTARY STEPS SHAPING METHODS POST SHAPING RAW MATERIALS RAW MATERIALS HANDLING OF PARTICULATE SOLIDS DIE FORMING MELTING MOLDING & CASTING PRESSURISATION & PUMPING SECONDARY SHAPING MIXING DEVOLATILLIZATION
More informationInjection Molding Handbook Herausgegeben von Tim A. Osswald, Lih-Sheng Turng, Paul Gramann
Injection Molding Handbook Herausgegeben von Tim A. Osswald, Lih-Sheng Turng, Paul Gramann ISBN-10: 3-446-40781-2 ISBN-13: 978-3-446-40781-7 Inhaltsverzeichnis Weitere Informationen oder Bestellungen unter
More information1. 3 Extrusion molding
1. 3 Extrusion molding 9 Extrusion is a widely used technique, both in the field of traditional and technical ceramics. This method allows the continuous manufacture of products with a constant cross-
More information3.5.7 Flow Through Simple Dies
152 3 Fundamentals of Polymers isothermal spinning of a Newtonian fluid and predicted the critical draw ratio of 20.210. Below the critical draw ratio, any disturbance along the filament is dampened out
More informationAn Introduction to Single Screw Extrusion
An Introduction to Single Screw Extrusion Sponsored by Dynisco Feb 14 2017 Table of Contents Single Screw Extrusion Extrusion and Thermoplastics Extruder Classification Machine Construction Post Extrusion
More informationProcess considerations to achieve optimum weld strengths of Wood Plastics Composites using advanced Vibration Welding technology
Process considerations to achieve optimum weld strengths of Wood Plastics Composites using advanced Vibration Welding technology Michael J. Johnston, Dukane Corporation As the uses for Wood Plastic Composites
More informationProcessing of Non Metals Prof. Dr. Inderdeep Singh Department of Mechanical and Industrial Engineering Indian Institute of Technology, Roorkee
Processing of Non Metals Prof. Dr. Inderdeep Singh Department of Mechanical and Industrial Engineering Indian Institute of Technology, Roorkee Module - 5 Polymer Matrix Composites: Processing Lecture -
More informationHIGH DENSITY FORMULATIONS PROCESSING GUIDE
Gravi-Tech HIGH DENSITY FORMULATIONS PROCESSING GUIDE GRAVI-TECH Density Modified Formulations Gravi-Tech polymer-metal composites are high-density materials developed as thermoplasticbased alternatives
More informationModule 3 Selection of Manufacturing Processes. IIT Bombay
Module 3 Selection of Manufacturing Processes Lecture 3 Design for Bulk Deformation Processes Instructional objectives By the end of this lecture, the students are expected to learn the working principle
More informationMultiflex Thermoplastic Elastomers
Multiflex Thermoplastic Elastomers Molding manual Injection molding Extrusion Overmolding M a t e r i a l s t o w i n INJECTION MOULDING 1. PROCESSING MACHINERY - Can be processed on conventional reciprocating
More informationautomotive, medical device and so on. well known for Hasco and Meusburge standards. Project details as below : French Plastic
French Plastic injection moulder in China, Please French invested mold maker with Chinese joint venture manufacture for electronics, electrical, home appliance, LED lighting, automotive, medical device
More informationGelimat Technology. Ultrahigh-Speed Thermokinetic Mixing, Compounding & Fluxing. Processing Excellence in Motion DUSATEC DUSATEC, INC.
Gelimat Technology Ultrahigh-Speed Thermokinetic Mixing, Compounding & Fluxing Processing Excellence in Motion www.dusatec.com DUSATEC, Inc. 19 Spear Road Ramsey, NJ 07446 USA Phone: +1-201-773-8000 E-mail:
More informationCasting Process Part 2
Mech Zone Casting Process Part 2 (SSC JE Mechanical/ GATE/ONGC/SAIL BHEL/HPCL/IOCL) Sand Casting cope: top half drag: bottom half core: for internal cavities funnel sprue runners gate cavity {risers, vents}
More informationHydraulic Presses and Molding Processes Making the optimal choice for your molding application
1 Hydraulic Presses and Molding Processes Making the optimal choice for your molding application Depending on the material, volume, size and shape of your molded parts, using the optimal molding process
More informationTable of Contents. Norman C. Lee. Blow Molding Design Guide ISBN: For further information and order see
Table of Contents Norman C. Lee Blow Molding Design Guide ISBN: 978-3-446-41264-4 For further information and order see http://www.hanser.de/978-3-446-41264-4 or contact your bookseller. Carl Hanser Verlag,
More informationMKR1153 Polymer Technology II
MKR1153 Polymer Technology II CH2 EXTRUSION OF PLASTICS HANIZAM BIN SULAIMAN Some slides from: Mariatti bt. Jaafar @ Mustapha (USM) Teeranut Praisuwan (Kasetsart University, Thailand) PROCESSES FOR SHAPING
More informationPLASTIC PIPE TERMS & DEFINITIONS
PLASTIC PIPE TERMS & DEFINITIONS Every product has certain terms and definitions that are unique to that particular product. Listed below are some of the more common terms and definitions that relate to
More informationBLOW MOULDING. Blow moulding is a process used to produce hollow objects from thermoplastic.
1 BLOW MOULDING Blow moulding is a process used to produce hollow objects from thermoplastic. The basic blow moulding process has two fundamental phases. First, a parison (or a preform) of hot plastic
More informationBin Level Indication Applications in the Plastic Processing Industries
Bin Level Indication Applications in the Plastic Processing Industries Introduction What is Plastic Processing? Simply, it is the processing or converting of raw plastic material into a finished or work-in-process
More informationTPX is 4-methylpentene-1 based, crystalline polyolefine. The characteristics of TPX are shown as follows.
TPX is 4-methylpentene-1 based, crystalline polyolefine. The characteristics of TPX are shown as follows. a. TPX has high heat-resistance with a melting point of 220 to 240 C0 b. TPX has excellent transparency
More informationDesign Considerations for Liquid Silicone Rubber
Design Considerations for Liquid Silicone Rubber LSR is a thermoset material with a unique set of design characteristics that differ from thermoplastic injection molding For many of us, the easiest place
More informationMajor Processes. Extrusion Injection Molding Blow Molding Thermoforming
Major Processes Extrusion Injection Molding Blow Molding Thermoforming Rotomolding Polymer Processes Applications of Extrusion Process Sheet Extrusion Profile Extrusion e.g. WindowFrames Pipe/ Tubes extrusion
More informationChapter 15: Characteristics, Applications & Processing of Polymers
Chapter 15: Characteristics, Applications & Processing of Polymers Study: 15.1-15.14 Read: 15.15-15.24 What are the tensile properties of polymers and how are they affected by basic microstructural features?
More informationEXTRUSION 15/03/17. Extrusion. Polymer Types. Extrusion. The extruder is the most important piece of machinery in the polymer processing industry.
petrochemical reactors and plants Plastic processing technology map reactor and plant continuous mixer big pelletizer (CIM) compounding machine pellet EXTRUSION high functional domestic twin-screw extruder
More informationUnderstanding Thermoforming
James L. Throne Understanding Thermoforming ISBN-10: 3-446-40796-0 ISBN-13: 978-3-446-40796-1 Table of Contents For further information and order see http://www.hanser.de/978-3-446-40796-1 or contact your
More informationMaterials of Engineering ENGR 151 CHARACTERISTICS, APPLICATIONS AND PROCESSING OF POLYMERS
Materials of Engineering ENGR 151 CHARACTERISTICS, APPLICATIONS AND PROCESSING OF POLYMERS POLYMER FORMATION Synthesis of large (polymer) molecules is called polymerization. There are two types of polymerization
More informationDetermining Appropriate Cooling System For Plastic Injection Molding Through Computer Simulation
Determining Appropriate Cooling System For Plastic Injection Molding Through Computer Simulation Parag Chinchkhede 1, Dr. K. M. Ashtankar 2, 1Master Of Technology Final Year, VNIT Nagpur 2Assistant Professor,
More informationINTRODUCTION. What is Manufacturing? Materials in Manufacturing Manufacturing Processes Production Systems Organization of the Book
INTRODUCTION What is Manufacturing? Materials in Manufacturing Manufacturing Processes Production Systems Organization of the Book Manufacturing is Important! Technologically Economically Historically
More informationPLASTICS. Chapter 5. Materials of Construction-Plastics 1
PLASTICS Chapter 5 Materials of Construction-Plastics 1 Plastics Plastics are synthetic materials which are composed of high molecular weight substances consisting of macromolecules of colloidal dimensions.
More informationThixomolding of Magnesium
Thixomolding of Magnesium Basic Features of Magnesium ASTM Mg alloy designation system - Alloys- Major alloying ingredient, aluminum Secondary alloying ingredient, zinc Fourth composition of this alloy
More informationChapter 30 Fundamentals of Joining. Materials Processing. Topics. MET Manufacturing Processes
MET 33800 Manufacturing Processes Chapter 30 Fundamentals of Joining Before you begin: Turn on the sound on your computer. There is audio to accompany this presentation. Materials Processing Chapters 11-13
More informationTurn off all electronic devices
Knives and Steel 1 Knives and Steel Observations about Knives and Steel Knives and Steel 2 Some knives can t keep their cutting edges Some knives bend while others break Making good knives involves heat
More informationManufacturing Process - I
Manufacturing Process - I UNIT II Metal Forming Processes Prepared By Prof. Shinde Vishal Vasant Assistant Professor Dept. of Mechanical Engg. NDMVP S Karmaveer Baburao Thakare College of Engg. Nashik
More informationTECHNICAL DATA SHEET GRIVORY GV-5H NATURAL
TECHNICAL DATA SHEET GRIVORY GV-5H NATURAL Product description Grivory GV-5H natural is a 50% glass-fibre reinforced engineering thermoplastic material based on a combination of semicrystalline Polyamide
More informationMethods of Making 3-Dimensional Shaped Composite Structures
Methods of Making 3-Dimensional Shaped Composite Structures Parvinder Walia, George Klumb, Jason Reese, Jack Hetzner, Dave Bank, and Keith Kauffmann The Dow Chemical Company, Midland, MI 48667 Abstract
More informationCaptains Tryouts Materials Science. Written by Araneesh Pratap (Chattahoochee High School GA)
Captains Tryouts 2017-2018 Materials Science Written by Araneesh Pratap (Chattahoochee High School GA) Instructions: 1. Write all answers on the Answer Sheet. Do not write on this Test Packet. 2. This
More informationPROCESSING OF POLYMERS. Chapter 7
PRODUCTION TECHNIQUES (MANUFACTRING PROCESSES) ACADEMIC YEAR 94-95, SEMESTER ONE PROCESSING OF POLYMERS Chapter 7 Polymers: Structure, General Properties and Applications 1 Polymers Polymers and Plastics
More informationRHEOLOGY & SLOT DIE COATING TECHNOLOGY. Mark Miller. Coating Tech Slot Dies, LLC Alpine Road, Suite 4. Eau Claire, WI 54703
RHEOLOGY & SLOT DIE COATING TECHNOLOGY Mark Miller Coating Tech Slot Dies, LLC 2322 Alpine Road, Suite 4 Eau Claire, WI 54703 (715) 544-7568 OFFICE (715) 456-9545 MOBILE mark.miller@slotdies.com www.slotdies.com
More informationASME B31.3 Process Piping
ASME B31.3 Process Piping Charles Becht IV, PhD, PE Don Frikken, PE Instructors BECHT ENGINEERING COMPANY, INC. Nonmetallic Piping - 1 Piping Development Process 1. Establish applicable system standard(s)
More informationContents. 1. Introduction to Materials Processing Starting Materials 21. Acknowledgements
Preface Acknowledgements xiii xv 1. Introduction to Materials Processing 1 1.1 Materials Processing: Definition and Scope 1 1.2 Three Approaches to Materials Processing 4 1.3 Materials Processing Steps
More informationContinuous Fiber Reinforced Thermoplastic (CFRT ) Inserts for Injection Over-Molding in Structural Applications
Continuous Fiber Reinforced Thermoplastic (CFRT ) Inserts for Injection Over-Molding in Structural Applications Thomas Smith, President TenCate Performance Composites Kipp Grumm, PE Advanced Development
More informationAutodesk Moldflow Insight AMI Thermoplastics Overmolding
Autodesk Moldflow Insight 2012 AMI Thermoplastics Overmolding Revision 1, 22 March 2012. This document contains Autodesk and third-party software license agreements/notices and/or additional terms and
More informationChapter 15 Extrusion and Drawing of Metals
Introduction Chapter 15 Extrusion and Drawing of Metals Alexandra Schönning, Ph.D. Mechanical Engineering University of North Florida Figures by Manufacturing Engineering and Technology Kalpakijan and
More informationMedical device design for injection molding
Medical device design for injection molding Contents Beginning medical device design for injection molding...3 Design considerations for medical device injection molding...4 Plastic material selection
More informationStructure, Properties and Processing of Plastics and Reinforced Plastics. (Chap10 in Kalpakjian and Schmid)
Structure, Properties and Processing of Plastics and Reinforced Plastics (Chap10 in Kalpakjian and Schmid) Objectives Thermoplastics, thermosets, elastomers, and reinforced plastics Structure Property
More informationPLASTICS TODAY THE MAGAZINE OF PLASTICS MANUFACTURING PRODUCTIVITY
PLASTICS TODAY THE MAGAZINE OF PLASTICS MANUFACTURING PRODUCTIVITY Selecting the 'Right' Thermocouple: There Are More Choices Today Used every day by most processors, thermocouples tend to be taken for
More informationBulk Deformation Processes
Bulk Deformation Processes Bachelor of Industrial Technology Management with Honours Semester I Session 2013/2014 TOPIC OUTLINE What is Bulk Deformation? Classification of Bulk Deformation Processes Types
More informationCopyright Notice. HCL Technologies Ltd. All rights reserved. A DEFINITIVE GUIDE TO DESIGN FOR MANUFACTURING SUCCESS
Title Subtitle Copyright Notice HCL Technologies Ltd. All rights reserved. No part of this document (whether in hardcopy or electronic form) may be reproduced, stored in a retrieval system, or transmitted,
More informationTECHNICAL DATA SHEET GRILON AG-35
TECHNICAL DATA SHEET GRILON AG-35 Grilon AG-35 is a heat stabilised, normal viscosity PA 66 injection moulding grade with 35% glass fibres. High stiffness High tensile strength High heat distortion temperature
More informationMetal Forming Process. Prof.A.Chandrashekhar
Metal Forming Process Prof.A.Chandrashekhar Introduction Shaping of a component by the application of external forces is known as the metal forming. Metal forming can be described as a process in which
More informationChapter 14 Polymers CHAPTER 7 POLYMERIC MATERIALS. Ancient Polymer History. Rubber balls used by Incas Noah used pitch (a natural polymer) for the ark
Chapter 14 Polymers What is a polymer? Polymers are organic materials made of very large molecules containing hundreds of thousands of unit molecules called mers linked in a chain-like structure (repeated
More informationEGN 3365 Review on Metals, Ceramics, & Polymers, and Composites by Zhe Cheng
EGN 3365 Review on Metals, Ceramics, & Polymers, and Composites 2017 by Zhe Cheng Expectations on Chapter 11 Chapter 11 Understand metals are generally categorized as ferrous alloys and non-ferrous alloys
More informationTECHNICAL DATA SHEET GRILON TS V0
TECHNICAL DATA SHEET GRILON TS V0 General product description Grilon TS V0 is an unreinforced, normal viscosity, self-extinguishing PA66 + PA6 injection moulding grade. Grilon TS V0 has the following important
More informationIntroduction to manufacturing
Corso di Studi di Fabbricazione 1 Introduction to manufacturing 1 MANUFACTURING - TECHNOLOGICALLY IMPORTANT Technology provides the products that help our society and its members to live better What do
More informationTECHNICAL DATA SHEET GRIVORY HTV-4X1 NATURAL
TECHNICAL DATA SHEET GRIVORY HTV-4X1 NATURAL Product description Grivory HTV-4X1 natural is a 40% glass-fibre reinforced engineering thermoplastic material based on a semi-crystalline, partially aromatic
More informationPUSHTRUSION TM DIRECT IN-LINE (D-LFT) COMPOUNDING TECHNOLOGY VERSUS LFT PELLETS AND GMT SHEET
PUSHTRUSION TM DIRECT IN-LINE (D-LFT) COMPOUNDING TECHNOLOGY VERSUS LFT PELLETS AND GMT SHEET Eric Wollan PlastiComp, LLC Abstract PlastiComp s Direct In-Line (D-LFT) compounding process provides processors
More informationCasting. Forming. Sheet metal processing. Powder- and Ceramics Processing. Plastics processing. Cutting. Joining.
Traditional Manufacturing Processes Casting Forming Sheet metal processing Powder- and Ceramics Processing Plastics processing Cutting Joining Surface treatment FUNDAMENTALS OF METAL FORMING Overview of
More informationI just want to say one word to you... just one word... Plastics. -the graduate
I just want to say one word to you... just one word... Plastics -the graduate Quiz! 1. What is your name? 2. Which are polymers: wood, skin, Jell-O, DNA 3. Where does almost all plastic come from? 4. Which
More informationTECHNICAL DATA SHEET GRILAMID LV-3H
TECHNICAL DATA SHEET GRILAMID LV-3H Product description Grilamid LV-3H is a 30% glass fibre reinforced, heat stabilised polyamide 12 injection moulding grade with the following product profile Good chemical
More informationApplying Elemental Gear Measurement to Mold Modification of Molded Plastic Gears Presented by Glenn Ellis, ABA-PGT Inc. Manchester CT.
Applying Elemental Gear Measurement to Mold Modification of Molded Plastic Gears Presented by Glenn Ellis, ABA-PGT Inc. Manchester CT. Elemental inspection of molded plastic gears has not been practiced
More informationclear packaging welcome to easy media..
clear packaging welcome to easy media.. The Durable Packaging Our clear packaging is made from the finest quality of plastics (PVC, PET, RPET & PP etc.) which provides better and more consistent clarity,
More informationSynthetic Petroleum-Based Polymers
Synthetic Petroleum-Based Polymers INTRODUCTION The synthetic polymer industry represents the major end use of many petrochemical monomers such as ethylene, styrene, and vinyl chloride. Synthetic polymers
More information