Basic information:
Screw: Twin-Screw
Application: PVC Profile, Pipe, UPVC Granulation
L/D Ratio: 16-35
Specification: D35/2-D180/2
Working process:
Raw Material - Quenching & Tempering - Rough Machining - Semi
finish Machining - Finish Machining - Nitriding Treatment -
Bimetallic Casting - Inspection - Finish Products
Specifications:35/75-92/188
Technical Specifications TECHNICAL TARGETS
| Nitriding depth:0.5-0.8mm Depth of nitration case:0.5-0.8mm |
| Hardness of nitration:950-1020HV Hardness of nitration:950-1020HV |
| Nitride crispness:≤A Fragility of nitration:Less than grade 1 |
| Surface roughness:Ra0.4um Roughness of the surface:Ra 0.4un |
| Linearity of the screw:0.015mm Lineatity of the screw:0.015mm |
| Hardness of double alloys:HRC55-62 Hardness of double
alloys:HRC55-62 |
| Alloy depth:>2mm Depth of double alloys:>2mm |
Material Available:
Nitrided Steel: 42CrMo, 38CrMoALA, etc
Cool work steel: D2, SKD61, 9Cr18MoV etc.
Heat resistant steel: SKH51, GH113 etc.
Planetary Parallel twin-screw
9Cr18MoV stainless steel, plastic, particularly suitable for processing PC, PMMA, PET transparent products and corrosion-resistant U-PVC,ABS, PP fire by the overall quenching treatment. Completely for the end user to solve the trouble chrome screw often fall off the chrome layerproducts thoroughly to ensure environmental requirements, is your ideal helper.
Barrel material
| Raw materials | Finished processing requirements |
| 38CrMoAlA,SACM645 | Nitriding treatment |
| Cr12MoV,Cr12 | Alloy steel, high-frequency quenching |
| 38CrMoAlA,SACM645,40Cr,AISI4140,42CrMo | Bore centrifugal casting doublet metal |
| GHII3 | High temperature naturally hardening |
Screw material
| Raw materials | Finished processing requirements |
| 38CrMoAlA,SACM645,42CrMo | Nitriding treatment |
| 42CrMo,AISI 4140 | Hard chrome plating layer |
| Cr12MoV,SKD11,SKD61,YXMI,EFZD,DC53,SKH55,SKH59,SKH58,SKH51,SKH-9,ASP60,ASP30,ASP25,CW6Mo5Cr4V2 | High-frequency quenching |
| 4Cr5MoSiV1,SKD-61,SKD-11 | Spraying bi-metal alloy layer nitriding treatment |
| YPT72,DAC-MAGIC,4 Cr5MoSiV1 | Double coated metal as a whole |
| HPM38,SI36,SUS440,9Cr18MoV | Stainless steel [iron and steel, high-frequency quenching |
| GHII3,GH132/GH2132/A-286;GH145/InconelX-750;GH143;GH169/Inconel718;GH3030;GH5K | Superalloy [3 steel] 300-1400 degrees high temperature naturally
hardening |
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