Optimizing Extruder Controls, Part Two
|
|
- Harvey Riley
- 6 years ago
- Views:
Transcription
1 Optimizing Extruder Controls, Part Two Lesson 6 I. The Compression Zone A. Most of the melting of raw material from solid plastic particles to molten plastic melt occurs in the compression zone. B. Goals of the compression zone: 1. Completely melt the solid bed of plastic. 2. Help mix the melt. C. Goals are accomplished through: 1. Heat 2. Compression 3. Shear NOTE: The plastic pressure is increased in the compression zone. D. The melting process Layer of molten plastic In the compression zone, the plastic is in contact with the heated inner wall of the extruder barrel. A thin layer of molten plastic adheres to the inner barrel wall. The rotating screw shears the plastic at the barrel wall which generates heat and accelerates the melting process. Page 67
2 Layer of molten plastic thickens Further along the compression zone, the layer of molten plastic adhering to the barrel wall thickens, until it exceeds the clearance between the screw flight and the barrel wall. Melt pool The screw flight scrapes off some of the melt, which accumulates at the front or pushing face of the flight. As more melt accumulates in front of each screw flight, a melt pool begins to fill the screw channel, pushing the solid or semi-solid bed of plastic granules forward. The unmelted plastic continues to be forced into the region of high shear at the barrel surface. The solid bed of plastic continues to melt and join the melt pool. Page 68
3 Completely melted To complete the melting process, all unmelted plastic in the solid bed should be displaced by the molten pool and forced against the barrel surface. 1. Unmelted plastic a. Sometimes as the plastic melts, the solid bed may break up, leaving unmelted plastic floating in melted plastic. This unmelted plastic may not be forced against the hot barrel surface, so some may remain unmelted. b. Mixing section 1. If the screw has a mixing section at the end, this section should complete the melting and mixing. c. Screen pack 1. A screen pack will block unmelted plastic and force it to melt. However, the trapped plastic particles could remain trapped in the screens long enough to degrade. Page 69
4 2. Barrier screw Barrier Barrier flight Solid bed Melt pool The barrier screw segregates the solid bed in its own channel and allows the melted plastic to flow over a barrier flight into a melt channel. The solids channel gets smaller and the melt channel larger as the plastic moves through the extruder. The flight clearance between the barrier flight and the barrel is about 1 percent of the screw diameter. II. Operating Variables in the Compression Zone A. Barrel temperature 1. Raising barrel temperature in compression zone: a. Causes earlier melting. b. Raises temperature in melt film region. 1. Decreases plastic s viscosity. 2. Reduces shear heating. c. Can either increase or decrease the melting rate, depending on how much the viscosity changes. Page 70
5 1. A decrease in overall melting rate is more likely with amorphous plastics because the viscosity of amorphous plastics drops quickly when the temperature is raised. Shear heating is reduced. 2. The viscosity of semi-crystalline plastics is less affected by an increase in compression zone barrel temperature. Shear heating continues at a high rate. 2. Cooling the barrel temperature in the compression zone. a. Used to reduce melt temperature. 1. Shear heating is increased in the melt film region. The increased shear heating is usually not enough to increase the overall melt temperature. III. The Metering Zone A. Plastic travel in the metering zone. Plastic Travel in the Metering Zone In the metering zone, the plastic melt moves in a spiraling motion down the channel. The plastic near the surface of the barrel is turned downward by the pushing edge of the screw flight. The plastic then crosses the screw channel, where the trailing edge of the flight pushes the plastic back up to the barrel surface. This constant motion of the plastic as the screw rotates, shears and mixes the melt. Page 71
Notes. Plastic Behavior In The Compounding Twin Screw Extruder. Lesson 4. I. Screw Terminology. A. Length to Diameter Ratio (L/D ratio)
Plastic Behavior In The Compounding Twin Screw Extruder Lesson 4 I. Screw Terminology Screw Terminology A. Length to Diameter Ratio (L/D ratio) 1. The L/D ratio is the length of the flighted portion of
More informationSCREW DESIGN BASICS The Processor Point Of View. Andrew W. Christie Optex Process Solutions, LLC
SCREW DESIGN BASICS The Processor Point Of View Andrew W. Christie Optex Process Solutions, LLC www.optexprocesssolutions.com Outline Define the goal Review basic extruder components Discuss process elements
More informationPROCESSING MICA BASED PIGMENT MASTERBATCH
PROCESSING MICA BASED PIGMENT MASTERBATCH Robert Roden, STEER Engineering Prakash Hadimani, STEER Engineering Dr Pradeep Bakshi, STEER Engineering Abstract Many effect pigments used in thermoplastics such
More informationEndex Foam Extrusion General Information Guide
Endex International Innovation for the Future Endex Foam Extrusion General Information Guide Section 01 - Foam Extrusion Foam extrusion, in simple terms, consists of mixing a chemical foaming agent with
More informationMetal Casting. Manufacturing Processes for Engineering Materials, 5th ed. Kalpakjian Schmid 2008, Pearson Education ISBN No.
Metal Casting Important factors in casting Solidification of the metal from its molten state and accompanying shrinkage Flow of the molten metal into the mold cavity Heat transfer during solidification
More informationExtrusion. 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 informationAN EXPERIMENTAL STUDY OF THE FLOWS IN AN ENERGY TRANSFER SCREW
N EXPERIMENTL STUDY OF THE FLOWS IN N ENERGY TRNSFER SCREW Susan. Somers, Mark. Spalding, Joseph Dooley, The Dow Chemical Company, Midland, MI Kun Sup Hyun, Polymer Processing Institute and Chem. Eng.
More informationBlown Film Processes. Bubble in the Real World. Blown Film Properties. The Ultimate Quality Control Tool
2009 Flexible Packaging Summit Consumer Packaging Solutions for Barrier Performance Course Blown Film Processes and Troubleshooting The Ultimate Quality Control Tool Presented by: Paul Waller President
More informationELONGATIONAL FLOW IN MULTIPLE SCREW EXTRUDERS
ELONGATIONAL FLOW IN MULTIPLE SCREW EXTRUDERS J. E. Loukus and A. C. Halonen M. Gupta GS Engineering Plastic Flow, LLC Houghton, MI 4993 Houghton, MI 4993 Abstract Flows of a low-density polyethylene in
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 informationCOMPARISON OF CAST FILM AND BLOWN FILM 9 - LAYER BARRIER FILM
COMPARISON OF CAST FILM AND BLOWN FILM 9 - LAYER BARRIER FILM Gerhard Winkler Windmöller & Hölscher / Germany ABSTRACT Above-average growth rates in the field of cast film production and stretch film,
More informationCeramic and glass technology
29 Glass Properties Glass is an inorganic, nonmetallic material which cools to a rigid solid without crystallization. Glassy, or noncrystalline, materials do not solidify in the same sense as do those
More informationA MECHANISM FOR SOLID BED BREAKUP IN SINGLE-SCREW EXTRUDERS
A MECHANISM FOR SOLID BED BREAKUP IN SINGLE-SCREW EXTRUDERS Gregory A. Campbell, Clarkson University/Castle Associates, Jonesport, ME Mark A. Spalding, The Dow Chemical Company, Midland, MI Abstract Solid
More informationINJECTION MOLDING OF PULSE ENGINEERING RESINS (unfilled & filled grades)
INJECTION MOLDING OF PULSE ENGINEERING RESINS (unfilled & filled grades) TECHNICAL INFORMATION Drying PC/ABS (polycarbonate/acrylonitrile butadiene styrene) resins are hygroscopic they absorb water from
More informationDislocations and Plastic Deformation
Dislocations and Plastic Deformation Edge and screw are the two fundamental dislocation types. In an edge dislocation, localized lattice distortion exists along the end of an extra half-plane of atoms,
More informationImproved Processing and Batch Time Reduction Through Powder Liquid Dispersions
Improved Processing and Batch Time Reduction Through Powder Liquid Dispersions Stephen O Rourke, Technical Director, Industrial Abstract The use of powder liquid dispersions in rubber compounds is well
More informationFEED ENHANCEMENT TECHNOLOGY FOR LOW BULK DENSITY MATERIAL INTO CO-ROTATING TWIN-SCREW COMPOUNDING EXTRUDERS
FEED ENHANCEMENT TECHNOLOGY FOR LOW BULK DENSITY MATERIAL INTO CO-ROTATING TWIN-SCREW COMPOUNDING EXTRUDERS Paul G. Andersen, Coperion Corporation, Ramsey, NJ Maria Hoelzel and Thorsten Stirner, Coperion
More informationPREPARED BY: DR. RAHIMAH OTHMAN FOOD ENGINEERING (ERT 426) SEMESTER 1 ACADEMIC SESSION 2016/17
1 PREPARED BY: DR. RAHIMAH OTHMAN FOOD ENGINEERING (ERT 426) SEMESTER 1 ACADEMIC SESSION 2016/17 SUBTOPICS 2 1. Introduction 2. Basic Principles of Extrusion 3. Extrusion System 3.1 Cold Extrusion 3.2
More informationContents. 1. Making a Blue Tank 2. Material Production Options 3. Methods for Adding Color 4. Grinding the Pellets 5. Benefits of Using Micros
Contents 1. Making a Blue Tank 2. Material Production Options 3. Methods for Adding Color 4. Grinding the Pellets 5. Benefits of Using Micros Making a Blue Tank Additives Process Stabilizers (Phosphates)
More informationSheet &foil 50 YEARS AT THE TOP OF THE EXTRUSION TECHNOLOGY EXTRUSION LINES FOR THE MANUFACTURE OF CLEAR SHEET AND FOIL OF HIGH OPTICAL QUALITY
PROCESSING. A COMBINATION OF WINNING FACTORS. AN ASSURED RESULT: QUALITY AND EFFICIENCY 11 For more than 40 years we have been designing and manufacturing complete extrusion and coextrusion lines for the
More informationVECTRA A150 LCP Glass Reinforced
Description Improved creep resistance over A130. May reduce warpage in some parts compared to A130. 50% glass reinforced. Chemical abbreviation according to ISO 1043-1 : LCP Inherently flame retardant
More informationEffect of Processing Parameters on Polypropylene Film Properties
Vol.2, Issue.5, Sep.-Oct. 2012 pp-3056-3060 ISSN: 2249-6645 Effect of Processing Parameters on Polypropylene Film Properties Ikilem Gocek 1, Sabit Adanur 2 1 (Department of Textile Engineering, Istanbul
More informationMANUFACTURING TECHNOLOGY
MANUFACTURING TECHNOLOGY UNIT II Hot & Cold Working - Drawing & Extrusion Drawing Drawing is an operation in which the cross-section of solid rod, wire or tubing is reduced or changed in shape by pulling
More informationEXTRUSION APPLICATIONS Feed and Petfood. Keith C. Behnke Professor Emeritus Kansas State University
EXTRUSION APPLICATIONS Feed and Petfood Keith C. Behnke Professor Emeritus Kansas State University PETFOOD AND AQUAFEED EXTRUSION BASICS Extrusion Cooking A CONTINUOUS PROCESS BY WHICH MOISTENED,
More informationPP/TPO Processing Guidelines and Troubleshooting Guide
PP/TPO Processing Guidelines and Troubleshooting Guide This guideline provides valuable information to help with some of the many problems that may arise when working with polypropylene. The suggestions
More informationBulk Deformation Forming - Rolling
1 Bulk Deformation Forming - Rolling Overview - Shaping and Forming Powders Pressing SLS Special Injection Molding Firing/ Sintering 2 Raw Material Molten Material Continuous Casting/Rolling Ingot casting
More informationChapter 9 THE EFFECT OF THERMAL TRANSFORMATIONS ON THE MELT MASS-FLOW RATE AND THE MELT VOLUME-FLOW RATE OF ABS Introduction
Piotr Mazur 1 2-95 - Chapter 9 THE EFFECT OF THERMAL TRANSFORMATIONS ON THE MELT MASS-FLOW RATE AND THE MELT VOLUME-FLOW RATE OF ABS Abstract: The melt mass-flow rate and the melt volume-flow rate determine
More informationclimatherm We set the standards for quality and reliability! P I P E S Y S T E M S
climatherm We set the standards for quality and reliability! P MADE IN I P E S Y S T E M S GERMANY aquatherm-climatherm The climatherm-pipe system includes all elements for the pipe system installation
More informationNew Developments in Co-Rotating Twin-Screw Extrusion for Production of Long Glass Fiber Composites
New Developments in Co-Rotating Twin-Screw Extrusion for Production of Long Glass Fiber Composites Daniel Schwendemann, Coperion Werner & Pfleiderer, Stuttgart Abstract Long fibre reinforced thermoplastics
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 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 informationSuccessfully Processing High Temperature Thermoplastics
Successfully Processing High Temperature Thermoplastics Jim Kostakes Entec Polymers August 13, 2015 Page 2 What Are High Temperature Thermoplastics? These are thermoplastics that can be used in applications
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 informationSIMPLIFIED MODELS FOR SINGLE-SCREW EXTRUSION APPLICATIONS
SIMPLIFIED MODELS FOR SINGLE-SCREW EXRUSION APPLICAIONS L. A. Vignol, N. S. Cardozo *, A. R. Secchi, F. Angiolini 2, M. D. Pizzol 2, Departamento de Engenharia Química - Universidade Federal do Rio Grande
More informationChapter TYPE OF EXTRUDERS AND EXTRUSION CONDITIONS
Chapter-02 16 TYPE OF EXTRUDERS AND EXTRUSION CONDITIONS Chapter-02 17 I. INTRODUCTION The different types of extruders and extrusion conditions are discussed for optimizing the extrusion conditions for
More informationMASTERBATCHES. Masterbatch Application and Selection Guide for Irrigation Pipes
MASTERBATCHES Masterbatch Application and Selection Guide for Irrigation Pipes Table of contents Page Nr Introduction 2 Definitions 3 Key Performance Requirements of Irrigation Pipes 3 Drip Irrigation
More informationTwin Screw Extrusion Systems to Process PLA More Efficiently
Extrusion Technology Twin Screw Extrusion Systems to Process PLA More Efficiently Innovation Takes Root 2012 Charlie Martin/Leistritz Ph: 908/685-2333, E-mail: cmartin@alec-usa.com February 22, 2012 Twin
More informationWorkshop Series 2016
Workshop Series 2016 Hands-on Approach to Cycle Time Reduction and Productivity Improvement Vishu Shah, Consultek Consulting Group April 21, 2016 ENGEL North America California Technical Center Corona
More informationInjection Molding An Introduction
Gerd Pötsch, Walter Michaeli Injection Molding An Introduction ISBN-10: 3-446-40635-2 ISBN-13: 978-3-446-40635-3 Leseprobe Weitere Informationen oder Bestellungen unter http://www.hanser.de/978-3-446-40635-3
More informationA MODEL FOR RESIDUAL STRESS AND PART WARPAGE PREDICTION IN MATERIAL EXTRUSION WITH APPLICATION TO POLYPROPYLENE. Atlanta, GA 30332
Solid Freeform Fabrication 2016: Proceedings of the 26th 27th Annual International Solid Freeform Fabrication Symposium An Additive Manufacturing Conference A MODEL FOR RESIDUAL STRESS AND PART WARPAGE
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 informationCHEMICALS MIXING. High Speed Dissolving of Viscosity Index Improvers in Luboils TOUGHEST. Solutions for Your. Applications in
Solutions for Your TOUGHEST MIXING Applications in CHEMICALS High Speed Dissolving of Viscosity Index Improvers in Luboils THE FIRST NAME IN HIGH SHEAR MIXERS High Speed Dissolving of Viscosity Index Improvers
More informationDevelopment of Advanced Structural Foam Injection Molding. Kye Kim. A thesis submitted in partial fulfillment of the requirements for the degree of
Development of Advanced Structural Foam Injection Molding Kye Kim A thesis submitted in partial fulfillment of the requirements for the degree of BACHELOR OF APPLIED SCIENCE Supervisor: Park, C.B. Department
More informationTORLON Polyamide-Imide Processing and Curing
TORLON Polyamide-Imide Processing and Curing TORLON Processing OVERVIEW Resin preparation Mold design Machine settings Processing temperatures Regrind Curing Machining Post machining curing General Processing
More informationUNDERFLOOR HEATING SYSTEMS ESTIMATE NOTES AND DETAILS
UNDERFLOOR HEATING SYSTEMS ESTIMATE NOTES AND DETAILS UFH INFORMATION PACK DATA SHEET 1 MANIFOLD SET-UP & DIMENSIONS UFH INFORMATION PACK DATA SHEET 2 TYPICAL LAYOUTS Counterflow is a common circuit pattern
More informationOriginal Scandinavian rainwater system
Original Scandinavian rainwater system Siba Siba Square Contents Siba rainwater systems 3 Measuring 15-16 Siba 4-9 Gutter brackets 18-19 Siba Square 10-11 Gutters 20-23 Materials 12 Angles 24 Technical
More informationNordson Polymer Processing Systems Screws, Barrels, Front End Components & Wear Solutions
EXTRAORDINARY TECHNOLOGIES FOR TODAY S PLASTICS Nordson Polymer Processing Systems Screws, Barrels, Front End Components & Wear Solutions You require innovative solutions. History of Innovation Xaloy was
More informationMixing ratios obtained using screw disc and screw extruders, and selected properties of mixture of reglanulate and original material
Mixing ratios obtained using screw disc and screw extruders, and selected properties of mixture of reglanulate and original material T. Rydzkowski* and G. Radomski Experimental effect of a screw disc clearance
More informationANALYSIS OF TEMPERATURE INFLUENCE ON INJECTION MOLDING PROCESS
Proceedings in Manufacturing Systems, Volume 11, Issue 2, 2016, 95 100 ISSN 2067-9238 ANALYSIS OF TEMPERATURE INFLUENCE ON INJECTION MOLDING PROCESS Karel RAZ 1,*, Martin ZAHALKA 2 1) PhD, Lecturer, Eng.,
More informationStandard Practice for Thin-Walled Tube Geotechnical Sampling of Soils for Geotechnical Purposes 1
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because it may not be technically
More informationSantoprene TPV. TPV troubleshooting guide for injection molding
Santoprene TPV TPV troubleshooting guide for injection molding TABLE OF CONTENTS - 3 CONTENT The following table provides an overview of most problems/defects. Please click on the desired problem phrase
More informationCalcium Carbonate in Blown HDPE Film
Calcium Carbonate in Blown HDPE Film New Developments to Increase Productivity and Profitability by Gil Morieras - Marketing Manager Polyolefines (Omya) and Dr. Gerard Schaeffer (GS Technology) Many interesting
More informationIntroduction to Dynamic Mechanical Testing for Rubbers and Elastomers. Mackenzie Geiger Applications Scientist September 6, 2017
Introduction to Dynamic Mechanical Testing for Rubbers and Elastomers Mackenzie Geiger Applications Scientist September 6, 2017 Is DMA Thermal Analysis or Rheology? Definitions Thermal Analysis measurement
More informationFalk WRAPflex Couplings Failure Analysis
Falk WRAPflex Couplings Failure Analysis Figure 1 WRAPflex Coupling & Element Features The Falk WRAPflex coupling transmits torque primarily through shearing action of the flexible elastomeric element
More informationThermoplastics start as regular pellets or granules and can be remelted.
Polymer Processing There are many processes for plastics. Selection of a process depends on many factors including: - Quantity and production rate - Dimensional accuracy and surface finish - Form and detail
More informationSIMULATION OF CO-ROTATING FULLY INTERMESHING TWIN-SCREW COMPOUNDING EXTRUDERS: ALTERNATIVES FOR PROCESS DESIGN
SIMULATION OF CO-ROTATING FULLY INTERMESHING TWIN-SCREW COMPOUNDING EXTRUDERS: ALTERNATIVES FOR PROCESS DESIGN Paul G. Andersen, Coperion Corporation, Ramsey, NJ Frank Lechner, Coperion GmbH, Stuttgart,
More informationMIT Amorphous Materials
MIT 3.071 Amorphous Materials 5: Viscosity of Glass Juejun (JJ) Hu 1 After-class reading list Fundamentals of Inorganic Glasses Ch. 9 Introduction to Glass Science and Technology Ch. 6 2 The pitch drop
More informationLAKESIDE Water Purification Since Bulletin #1218 Revised June Spiravac Clarifier. Peripheral Feed Center Takeoff Suction Sludge Removal
LAKESIDE Water Purification Since 98 Bulletin #8 Revised June 999 Peripheral Feed Center Takeoff Suction Sludge Removal Copyright Lakeside Equipment Corporation 999 The Spiraflo principle has been successfully
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 informationLCM CC & TCC. A member of the Possehl Group
LCM CC & TCC A member of the Possehl Group LCM LONG CONTINUOUS MIXERS These continuous mixers compete with the quality level of products obtained by discontinuous internal mixers. They overcome both processing
More informationR&D TO PRODUCT: HOW TO REDUCE COSTLY SCALE-UP PROBLEMS
WHITEPAPER R&D TO PRODUCT: HOW TO REDUCE COSTLY SCALE-UP PROBLEMS { When scaling a new drug formulation from the development side of R&D into manufacturing, there is often a reality check with respect
More informationCROP PROCESSING ENGINEERING Cleaning and Sorting
CROP PROCESSING ENGINEERING Cleaning and Sorting Comparative commercial value of a farm product is a function of its grade factor. Grade factors (that apply in various combinations to all products produced
More informationMicophotometric Control of Particles and Inhomogeneities in Flowing Polymer Melts during Extrusion Processing
M.Stephan, S.Große: Micophotometric Control of Particles and Inhomogeneities in Flowing Polymer Melts during Extrusion Processing Workshop January, 28 th -29 th 2005, Dresden Particulate Heterogeneities
More informationEffective troubleshooting of extrusion problems
Effective troubleshooting of extrusion problems Chris Rauwendaal Citation: AIP Conference Proceedings 1779, 030021 (2016); View online: https://doi.org/10.1063/1.4965491 View Table of Contents: http://aip.scitation.org/toc/apc/1779/1
More information763.389.9475 www.erdmanautomation.com The Erdman 3M VHB Structural Glazing Tape Applicator, Frame Assembly & Glass Lay-in System Erdman 3M VHB Structural Glazing Tape Applicator, Frame Assembly and Glass
More informationEffect of Powder Compaction in Plastic Laser Sintering Fabrication
Effect of Powder Compaction in Plastic Laser Sintering Fabrication Toshiki NIINO and Kazuki SATO Institute of Industrial Science, The University of Tokyo, Japan 4-6-1 Komaba Meguro Tokyo, 153-8505 Japan
More informationElectrophoresis 101 Student Worksheet
1 Electrophoresis 101 Student Worksheet Experiment Objective To develop an understanding of electrophoresis principles. To analyze results and to calculate the sizes of unknown charged molecules from given
More informationSITE INVESTIGATION. Foundation Engineering
SITE INVESTIGATION Assist. Prof. Berrak TEYMUR Foundation Engineering Analysis Design Construction As a foundation engineer, you need to consider geotechnical/structural issues (involves geology, subsurface
More informationStructural Vacuum Insulation Panels
Structural Vacuum Insulation Panels Dwight S. Musgrave Thermal Visions, Inc. 83 Stonehenge Dr., Granville, Ohio 43023, USA dwight.musgrave@thermalvisions.com 1 Introduction Some VIP applications are a
More informationTetra Pak Aseptic Package Integrity. Mike Bolstridge Director Product Quality and Safety IFTPS March 2012
Tetra Pak Aseptic Package Integrity Mike Bolstridge Director Product Quality and Safety IFTPS March 2012 Aseptic Packaging Definition: Hermetically sealed to prevent re-infection Tetra Brik Aseptic 1.
More informationSCREW & BARREL METALLURGY & SERVICE LIFE. Mrunal Sanghvi Regional Sales Manager Nordson Xaloy Asia (Thailand) Ltd.
SCREW & BARREL METALLURGY & SERVICE LIFE Mrunal Sanghvi Regional Sales Manager Nordson Xaloy Asia (Thailand) Ltd. 1 Topics of Discussion Current Requirements Screw & Barrel Wear Types of Wear Screw & Barrel
More informationManufacturing Technology II. Exercise 1. Casting
Lehrstuhl für Technologie der Fertigungsverfahren Laboratorium für Werkzeugmaschinen und Betriebslehre Manufacturing Technology II Exercise 1 Casting Werkzeugmaschinenlabor Lehrstuhl für Technologie der
More informationSELF-CONSOLIDATING CONCRETE FOR SLIP-FORM CONSTRUCTION: PROPERTIES AND TEST METHODS
SELF-CONSOLIDATING CONCRETE FOR SLIP-FORM CONSTRUCTION: PROPERTIES AND TEST METHODS Kejin Wang (1), Surendra P. Shah (2) and Thomas Voigt (3) (1) Department of Civil, Construction and Environmental Engineering,
More information9. Welding Defects 109
9. Welding Defects 9. Welding Defects 109 Figures 9.1 to 9.4 give a rough survey about the classification of welding defects to DIN 8524. This standard does not classify existing welding defects according
More informationDESIGN OF LOW DENSITY PILOT POLYETHENE RECYCLING SYSTEM FOR WASTE MANAGEMENT AND POLLUTION CONTROL
International Journal of Innovation and Sustainability, 2 (2018) 9-14 Journal Homepage: www.erjournals.com ISSN: 0184-7937 DESIGN OF LOW DENSITY PILOT POLYETHENE RECYCLING SYSTEM FOR WASTE MANAGEMENT AND
More informationProduction line for glass fiber reinforced plastic rebar
Production line for glass fiber reinforced plastic rebar UAE, Dubai, Jumeirah Lakes Towers, Platinum tower, Star Business Center, Office 805-03 Tel: +971 55 499 4675 Email: composite.trading@gmail.com
More informationVALUE ADDED PRODUCTS FROM RECYCLED PET BOTTLES
VALUE ADDED PRODUCTS FROM RECYCLED PET BOTTLES WASTE PET BOTTLES CLEAN PET FLAKES SHEET & FILM FOR PACKAGING NON FOOD BOTTLES STRAPPING TAPE RECYCLED PSF / POY / DTY RECYCLED PET RESIN PELLETS BLENDING
More informationChapter Outline Dislocations and Strengthening Mechanisms. Introduction
Chapter Outline Dislocations and Strengthening Mechanisms What is happening in material during plastic deformation? Dislocations and Plastic Deformation Motion of dislocations in response to stress Slip
More informationAESTUVER fire-protection mastic For the AESTUVER expansion joint M
fermacell AESTUVER product data sheet For the AESTUVER expansion joint M Product is an elastic RTV-1 silicone combined with halogen-free fire retardants. Silicone is a versatile elastomer which is mainly
More informationDETERMINING THE RESIDUAL QUALITY OF PE PIPES USING THE STRAIN HARDENING TEST
Proceedings of the 18th Plastic Pipes Conference DETERMINING THE RESIDUAL QUALITY OF PE PIPES USING THE STRAIN HARDENING TEST Ernst van der Stok Kiwa Technology Apeldoorn, the Netherlands Frans Scholten
More informationENERGETIC EVENT IN FUEL-COOLANT INTERACTION TEST FARO L-33
FR0108109 ENERGETIC EVENT IN FUEL-COOLANT INTERACTION TEST FARO L-33 D. MAGALLON*, I.HUHTINIEMI European Commission, Institute for Systems, Informatics and Safety, 21020 Ispra (VA), Italy Key words : FCI,
More information3M Plastic Bonding Adhesive 2665B, Black
Technical Data August 2014 3M Plastic Bonding Adhesive 2665B, Black Product Description 3M Plastic Bonding Adhesive 2665B is a one-component, moisture curing, hot-melt urethane adhesive. This low viscosity
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 informationFlight Dynamics and Sensible Heat Recovery of Granulated Blast Furnace Slag
Send Orders for Reprints to reprints@benthamscience.ae 356 The Open Fuels & Energy Science Journal, 2015, 8, 356-360 Open Access Flight Dynamics and Sensible Heat Recovery of Granulated Blast Furnace Slag
More informationA Study on Shrinkage and Warpage of Rotational Moulded Polyethylene L. Costa; M.C. Cramez, A.J. Pontes
Materials Science Forum Vols. 730-732 (2013) pp 957-962 (2013) Trans Tech Publications, Switzerland doi:10.4028/www.scientific.net/msf.730-732.957 A Study on Shrinkage and Warpage of Rotational Moulded
More informationTERPOLYMER ETHYLENE VINYL ACETATE MALEIC ANHYDRIDE
TERPOLYMER ETHYLENE VINYL ACETATE MALEIC ANHYDRIDE Hot Melt Formulation To optimise cost/performance, OREVAC Terpolymers are combined with EVATANE. Adhesion tests have been performed in a classical Hot
More informationDIE FLOW CHANNEL DISTRIBUTION
DIE FLOW CHANNEL DESIGN FOR OPTIMIZED DISTRIBUTION Applications of this Technology Web Coatings Emulsions Polymers Hot Melts Polymer Film & Sheet Manufacture Typical Flow Channel Designs Conventional Technology
More informationRHEOLOGICAL PROPERTIES ROSAND RH7 & RH10 RHEOLOGICAL INSTRUMENTS BACKED WITH RHEOLOGICAL EXPERIENCE
RHEOLOGICAL PROPERTIES ROSAND RH7 & RH10 RHEOLOGICAL INSTRUMENTS BACKED WITH RHEOLOGICAL EXPERIENCE ADVANCED, POWERFUL FLOOR STANDING CAPILLARY RHEOMETERS FOR RESEARCH AND PRODUCT DEVELOPMENT Since its
More informationsevere accident progression in the BWR lower plenum and the modes of vessel failure
1 For Presentation at the ERMSAR Conference held in Marseilles, France, March 24-26, 2015 severe accident progression in the BWR lower plenum and the modes of vessel failure B. R. Sehgal S. Bechta Nuclear
More informationNew Continuous Chromatography Options
New Continuous Chromatography Options Why continuous chromagraphic processes should be explored One of the most powerful and increasingly more relied upon purification methods used in pharmaceuticals and
More informationInfluence of extrusion coating processing conditions on structure and tensile properties of some polyethylene grades
ANNUAL TRANSACTIONS OF THE NORDIC RHEOLOGY SOCIETY, VOL. 1, 22 Influence of extrusion coating processing conditions on structure and tensile properties of some polyethylene grades Nils Toft and Mikael
More informationAccepted for publication in Materials Science Forum Published in November 12, 2012 DOI: /www.scientific.net/MSF
Accepted for publication in Materials Science Forum Published in November 12, 2012 DOI: 10.4028/www.scientific.net/MSF.729.126 Development of a novel pvt measuring technique Ferenc SZABÓ 1, a, József Gábor
More informationTechnical Specifications
Technical Specifications Dimafix is a smart adhesive that varies its adherence properties according to the temperature, in the range usually used for 3D printing. Figure 1 shows how Dimafix increases adherence
More informationPART II: Metal Casting Processes and Equipment
Manufacturing Engineering Technology in SI Units, 6 th Edition PART II: Metal Casting Processes and Equipment Introduction Casting involves pouring molten metal into a mold cavity Process produce intricate
More informationSimulation of High Pressure Die Casting (HPDC) via STAR-Cast
Simulation of High Pressure Die Casting (HPDC) via STAR-Cast STAR Global Conf. 2012, 19-21 March, Noordwijk Romuald Laqua, Access e.v., Aachen High Pressure Die Casting: Machines and Products Common Materials:
More informationA STUDY ON THERMAL AND MECHANICAL PROPERTIES OF MECHANICALLY MILLED HDPE AND PP
. MK0400054 >^ A STUDY ON THERMAL AND MECHANICAL PROPERTIES OF MECHANICALLY.. A STUDY ON THERMAL AND MECHANICAL PROPERTIES OF MECHANICALLY MILLED HDPE AND PP S.Can* and S.Tan** * Department of Polymer
More informationAPN029. The SER2 Universal platform for material testing. A.Franck TA Instruments Germany
APN029 The SER2 Universal platform for material testing A.Franck TA Instruments Germany Keywords: Elongation viscosity, Hencky rate, SER, friction testing INTRODUCTION The roots of extensional rheometry
More information1. for products that cannot be separated by distillation or thermal instability due azeotrope formation
Purification of -CON in U700. 1. Introduction 1.1 Application of melt crystallization Melt Crystallization in following cases: 1. for s that cannot be separated by distillation or thermal instability due
More information1. Definitions and classification of Metal forming processes
1. Definitions and classification of Metal forming processes 1.1 Introduction: Metal forming is a very important manufacturing operation. It enjoys industrial importance among various production operations
More informationWM2008 Conference, February 24-28, 2008, Phoenix, AZ Abstract #8216. Thermal Pretreatment For TRU Waste Sorting
ABSTRACT Thermal Pretreatment For TRU Waste Sorting T. Sasaki, Y. Aoyama, Y. Miyamoto, and H. Yamaguchi Japan Atomic Energy Agency 4-33, Muramatsu, Tokai-mura, Ibaraki 319-1194 Japan Japan Atomic Energy
More information