Styker International North American Agent CARBON PRODUCTS. Graphite Electrodes Isostatic Graphites Carbon Blocks

Transcription

1 Styker International North American Agent CARBON PRODUCTS Graphite Electrodes Isostatic Graphites Carbon Blocks

2 Graphite Electrode G raphite electrodes are widely used in iron and steel, nonferrous metal smelting, as well as silicon, phosphorus smelting industry. We can provide various grades and specifications of the graphite electrodes, products with a low resistance, high physical density, oxidation resistance, and high precision machining to meet the needs of different users. Size Norminal Diameter Unit Actual Diameter (D) In mm Max Min Low spot (B) Norminal Length 8'' /1800 9'' / '' / '' /1800/1900/ '' /1800/1900/2000/ '' /1800/1900/2000/2200/ '' /1800/1900/2000/2200/ '' /1900/2000/2200/ '' /2000/2200/ '' /2200/2400/ '' /2700/ '' /2700/3000 Electrode length and to allow deviations Unit: mm

3 Tolerance Norminal Length max Tolerance min max Shorter length tolerance min Note: each electrode to allow the short-foot does not exceed 15% Cone size of graphite electrode joints Unit: mm Thread per inch Nipple Socket Pitch Diameter D d2 L l d1 H Tolerance Tolerance mm in (-0.30~0) (-0.30~0) (-1~0) (0~0.3) (0~7) TPI

4 TPIL TPI TPIL

5 Specification Norminal Diameter Item Unit UHP HP RP Φ400 Φ450 Φ400 Φ450 Φ300 Φ350 Resistance Electrode μω m Nipple Bending Strength Electrode MPa Nipple Elastic Modulus Electrode GPa Nipple Bulk Density Electrode g/cm3 Nipple CTE. Electrode / Nipple Ash %

6 Graphite electrode to allow the current load and current density (recommended) Norminal Diameter RP HP UHP mm Current load A Current Density A/cm2 Current load A Current Density A/cm2 Current load A Current Density A/cm Electrode diameter and the allowable deviation Unit: mm

7 Styker International North American Agent

8 Styker International North American Agent OPERATING INSTRUCTION

9 Isostatic Graphite F ine grain cool press graphite material is a new type material which was presented in the latest fifty years. It has better properties compared to ordinary materials. It has many properties, such as good electric conductivity; heat conductivity; high strength under high temperature; self lubrication; high temperature resistance and high bulk density and easily processing etc. It is more and more used in different fields of national economy, such as mono-crystal silicon; electric spark machining; metal continuous casting; high temperature corrosion resistance container; special purpose and so on. Isotropic graphite (Fine grain big size, isotropic graphite) is produced by isostatic compaction technology, it has not only all properties of high purity graphite, but also has good isotropism, which will not be affected by its dimension, shape and sampling orientation; its structure is homogeneous, fine and close with high mechanical strength, strong oxidation resistance capacity and Good machining property, and so on. Its consumption is only 1/3~1/5 of copper material when it is used as EDM electrodes.it can be said that it is the best material among graphite materials. Index of Isostatic Graphite Index Bulk Product Density NO. g/cm3 Electric Compressive Conductivity Strength μω.m Mpa Flexural Strength Mpa Shore Hardness Ash Average Content Granularity PPM μm C.T.E Young s Modulus Gpa Applications Semiconductor(monocrystalline silicon),pottery sin CDI-1A ter,vacuum furnace,electronic products sinter,con tinuous casting CDI-1B Semiconductor(monocrystalline silicon),pottery sin ter,vacuum furnace,electronic products sinter,con

10 tinuous casting CDI-2S Cemented carbide sinter, Graphite moulds,etc CDI-3S Cemented carbide sinter, Graphite moulds continu ous casting,etc CDI-4S Cemented carbide sinter, Vacuum furnace,diamon d sinter Precious metale smelting,sealing product s,etc CDI-5L Kinds of graphite moulds in continuous casting,sp ace,medical lndustry,precious metals smelting,gla ss,electronic lndustry,etc CDI-6L Kinds of graphite moulds in continuous casting, Pr ecious metals smelting,glass, Glass,Electronic lnd ustry,etc CDI-7L Common continuous casting and moulds CDI-8L Kinds of graphite moulds in continuous casting,pr ecious metals smilting, Glass,Electronic lndustry,e tc EDM-I Die casting moulds,plastic moulds,forge moulds EDM EDM-I Die casting moulds,plastic moulds,forge moulds EDM EDM-I Die casting moulds,plastic moulds,forge moulds EDM EDM-I Die casting moulds,plastic moulds,forge moulds EDM

11 Carbon Block B oth, Cathodes and Furnace Linings are investment goods. Hence, our commitment to top quality is deeply incorporated in all steps along the value chain. We are the only independent cathode producer offering all types of cathode materials, ranging from amorphous carbon to graphitic to graphite. This allows us to cater optimally to the specific needs of its customers in the primary Aluminium industry. We are the only furnace linings producer providing the complete range of carbon, supermicroporous, and graphite materials to ensure a long campaign life of the Blast Furnaces irrespective of the lining concept. Furnace Linings The Blast Furnace/Blast Oxygen Furnace route was developed for the production of high quality primary steel. It is the most successful route to produce primary steel. As the availability of scrap metal and electricity increases, the number of EAF (Electric Arc Furnaces) will increase to recycle the scrap. The EAF steel will not be sufficient to cover the steel demand in the world, and both production routes have a bright future. In the beginning of the 60ies, the refractory lining of the lower part up to the middle stack of blast furnaces was turned successfully to carbon and graphite materials. We actively pushed this development. The improvement of material and design solutions have significantly increased the productivity and campaign life of Blast Furnaces since then. We have been an expert partner to the steel industry since the beginning. Our company is able to meet all specific requirements for Blast Furnaces due to the most comprehensive product range of the Furnace Linings Industry. The range consists of carbon and graphite grades including supermicroporous carbons and microporous ceramic carbons, glues and cements to cater to the specific needs of the different areas in the Blast Furnace or Submerged Arc (Reduction) Furnace. Intensive development work ensures continued best solutions for the future. We provide state-of-the-art machining with the tightest tolerances. Several assembly plates shorten lead-times and reduce the number of inspections. The products are widely used in blast furnace. Super Micro-pore Carbon Block Super micro-pore Carbon Block is made of calcined anthracite under high temperature and other additives by extruding, baking and processing. Typical properties are with high thermal condiuctivity, high micr-pore porosity and good permeability which may reduce erosion to the body of blast furnace, and avoid the iron liquid erosion and permeability. Super Micro-pore Carbon Block can meet the requests for the large scale blast furnaces Micro-pore Carbon Block Micro-pore Carbon Block is made from calcined anthracite under high temperature with other additives by extruding, baking and processing. Typical properties are better micro porosity, permeability, and anti-erosion from iron liquid.

12 Micro-pore Carbon Block is used in lay hearth of blast furnace. Partial Graphite Carbon Block Partial Graphite Carbon Block is made of calcined anthracite under high temperature and graphite. Medium pitch acts as binder. Main processes are extruding, baking and processing. Typical properties are with good thermal conductivity and anti-alkaline. Partial Graphite Carbon Block is used in bottom of blast furnace. Ultra-thermal conductivity Graphite Block Ultra-thermal Conductivity Graphite Block is made of low ash pet-coke and pitch acts as binder by extruding, baking, impregnation, graphitization and processing. The product is with higher thermal conductivity which is helpful in reducing the temperature, cooling and slowering the erosion to the furnace bottom. Ultra-thermal conductivity Graphite Block is used in the hearth and bottom of blast furnace. High thermal Conductivity Carbon Block High thermal Conductivity Carbon Block is made of high thermal conductivity materials and partial graphite materials. Pitch acts as binder. Main processes are extruing, baking, and processing. The product is with higher thermal conductivity. High thermal Conductivity Carbon Block is used for the bottom of blast furnace.

13 Properties No Item Unit Partial Graphite Graphite Block High thermal Conductivity Micro-pore Super micro-pore 1 Fixed Carbon % Ash % Bulk Density g/cm Open Porosity % Real Density g/cm Compressive Strength Mpa Bending Strength Mpa Iron liquid melting index % Average Pore Diam μm Pore capacity under 1μm % Oxidation % Permeability mda Room termp Thermal Conductivity W/m.k Anti-alkaline U or LC U or LC U U or LC U or LC Dimension and allowable tolerance Unit:mm Size L L L, L 2700 Allowable tolerance to be conformity to L, L, L 2400 the National standard L L, L, L, L 3390

14 Cathode Blocks One of the key products of the Performance Products Business Unit is cathodes. Cathode blocks are used in the lining of aluminum electrolysis cells. Sidewall blocks, ramming pastes and special glues round up the cathode product portfolio - providing complete custom-made solutions to optimally fit the requirements in the Aluminum Smelter. We are the only independent cathode supplier offering the complete product range from amorphous, graphitic and graphitised cathodes. In addition, the Technical Service provides professional and highly qualified support around the application of cathodes, sidewalls, ramming pastes in customers' processes. The continuous development of next generation products supports optimal solutions to the increasing challenges in the smelting process such as cell life, productivity, and energy efficiency. We serve the leading Aluminium producers. 1. Cathode Blocks - amorphous - graphitic - 2. Sidewall Blocks - amorphous - graphitic - graphitized graphitized 3. Ramming pastes - cold ramming paste - hot ramming paste 4. Special glues

15 Schungite Cathode Side and Corner Block for Aluminum Electrolysis Product Description: Item Product Specification Unit Index Ash content % 8 True density g/cm Apparent density g/cm Compressive strength Mpa 31 Side block Corner block 400*115* *115* *130* *123* *123* /204*123* /223*100* /207*120*550 Other specifications are negotiable according to customer demand Machining Accuracy: Length ±2mm Width ±2mm Thickness ±2mm Square Trowel ±0.4 Schungite cathode side and corner carbon blocks have good heat-conducting property and oxidation resistance.

16 Schungite Cathode Carbon Block for Aluminum Electrolysis Product Description: Item Product Specification Unit Index Typical value True density g/cm Apparent density g/cm Compressive strength Mpa Breaking strength Mpa 8 10 Heat conductivity ( ) w/m 8 Ash content % 6 5 Resistivity μωm Apparent porosity % 20 Sodium expansion ratio % 0.7 Thermal expansion coefficient ( ) % 4.2 Young modulus Gpa *400*1600~3600mm 515*450*1600~3600mm 660*450*1600~3600mm Other specifications are negotiable according to the requirement of acquirer. Machining Accuracy: Length ±5mm, Groove Width ±2mm Width ±2mm, Square Trowel ±0.4 Height ±2mm Schungite cathode carbon block for aluminum electrolysis, as a key carbon masonry material of electrolytic bath cathode for electrolytic aluminum industry, is featured by lower resistivity, good heat-conducting property, scour resistance, anticorrosion and lower electrolysis expansivity, and can prolong the life of the bath to make aluminum electrolysis production obtain good comprehensive benefit.

17 Graphitized Cathode Carbon Block Product Description: Item Product Specification (other specifications are negotiable according to the requirement of acquirer) Unit Index Apparent density g/cm True density g/cm Breaking strength Mpa 10 Compressive strength Mpa 24 Heat conductivity (20-60 ) W/K.m 90 Ash content % 0.3 Resistivity μωm 13 Total porosity % 26.5 Thermal expansion coefficient ( ) *10-6/ 4 Sodium expansion ratio % *450*1600~ *450*1600~ *470*1600~ *450*1600~ *400*1600~ *420*1600~3600 Machining Accuracy: Length ±2mm, Groove Width ±2mm Width ±2mm, Square Trowel ±0.4 Thickness ±2mm Graphitized cathode is the development direction of electrolytic bath cathode in electrolytic aluminum industry and has lower resistivity and higher heat-conducting property, better erosion resistance and oxidation resistance and lower heat expansibility and sodium expansion, making the performance of high-power electrolytic bath more stable, and laying a foundation for larger economic benefit of electric consumption reduction of electrolytic aluminum.

18 Submerged Arc Furnace Carbon Block Product Description: Item Product Specification Unit Index Ash content % 8 True density g/cm Apparent density g/cm Compressive strength Mpa 32 Apparent porosity % *220*800~ *400*800~ *600*800~ *550*800~ *600*800~ *420*1600~3600 Other specifications are negotiable according to the requirement of acquirer Machining Accuracy: Length ±10mm Width ±2mm Thickness ±2mm Flexibility: Not more than 0.5% of the length Submerged arc furnace carbon block is suitable for masonry ferroalloy furnace and calcium carbide furnace lining materials, and featured by high strength, anticorrosion, scour resistance, antioxidation, etc.

19 High Graphite Cathode Carbon Block for Aluminum Electrolysis Product Description: Item Unit GS-3 Typica Typica Typica GS-5 GS-10 l value l value l value True density g/cm Apparent density g/cm Compressive strength Mpa Breaking strength Mpa Heat conductivity ( ) w/m Ash content % Resistivity μωm / Apparent porosity % Thermal expansion coefficient *10- ( ) 6/ Sodium expansion ratio % Young modulus Gpa Product Specification 660*450*1600~ *450*1600~ *470*1600~ *450*1600~ *400*1600~ *420*1600~3600 Other specifications are negotiable according to the requirement of acquirer Machining Accuracy: Length ±3mm, Groove Width ±2mm Width ±2mm, Square Trowel ±0.4 Thickness ±2mm With the development of electrolytic aluminum industry and gradual popularization of highpower electrolytic bath, the industry has higher requirement on high-quality large specification cathode carbon block. High graphite cathode has good conduction and heatconducting property, scour resistance, anticorrosion, oxidation resistance and lower thermal expansivity and sodium expansion ratio, and can prolong the life of electrolytic bath to make electrolytic aluminum production obtain good comprehensive benefit.