Our Products:
Specifications
For good plasticizing effect, we have different designs of screw and barrel for extruder or injection to meet customer's demand.Our factory manufactures with high-quality material, applying the method of hardening and tempering and nitriding, thus it enjoys the characteristics of long working life, wear resistance, and anti corrosion. Besides, the technique of hard alloy spraying or chrome plating can be used on the working surface of screw, which will make it have better using effectiveness. We can produce for Haitian, Chenhsong, Demag, Engle, Nigrobossi, KMD, NPM, BOY, HUSKY, Nippon Steel, Toshiba, Nissei, Mitsubishi, CINCINNATI, BATTENFELD, KRUSSMAFFEI, BAUSANO, WEBER, AMUT and so on.
Extruder screw diameter: 15 - 300 MM
LD for extruder screw: 1:5 - 1:65
Extruder barrel OD: 20-500 MM
Product Name | Melt blown fabric screw and barrel for masks screw and barrel manufacturer |
Base Material (steel) | 38 CrMoAlA(JIS SACM645); 42 CrMo(AISI 4140); Cr12MoV(JIS SKD-11); 4Cr5MoSiV1(JIS SKD-61) |
Process ( hot treatment) | Nitriding treatment 72 hours Bimetallic treatment |
Hardness after hardening and tempering | HB260-320 |
Nitrided Hardness | HV900-1000 |
Nitrided Case Depth | 0.5 - 0.8 mm |
Nitrided Brittleness | Less than Grade 2 |
Surface Roughness | Ra 0.4 |
Screw Straightness | 0.015 mm |
Bimetallic Hardness | HRC 53-65 |
Bimetallic Depth | 0.8-2.0mm for screw ; 1~3mm for barrel |
Chromium plating Depth | 0.05~0.10mm |
Hardess of surface chromium-plating after Nitriding | HV≥950HV |
***Grade available:
1. Standard grade: 38CrMoAlA + nitriding 96 hours
2. Bimetallic grade: 38CrMoAlA + bimetallic alloy
3. TC-A grade: Tungsten carbide 35%
4. TC-B grade: Tungsten carbide 25%
5. TC-C grade: Tungsten carbide 15%
Material
1)38CrMoALA(JIS SACM645)
2)42CrMo(JIS SCM440)
3)9Cr18MoV
4)CW6Mo5Cr4V2
5)Various high quality alloy steels,According to different usage, the choose for alloy is different, some require for abrasion-resistant while some require for corrsion-resistant. For standard, we have Fe-based, Ni-based,W2Calloy,Tunsten alloy etc for choice.
6)The foreign material we used as following:
*Germanysteel, GH113 ,2250 ,2842 ,1.8509 ,1.442 ,1.6582 ,1.6523 ,1.2080,1.4542,
*USA steel, P20,420,L6,H13,W110,D3,A2,D6,O1,S1,M35,8620,3115,K52440
*Sweden steel, 718S,718H,S136,S136H,STAVAX,ASP-23,ASP-30
*Australia Steel, M202,M300,W302,K460,W300,K900,K100,W321
*Hardness steel, YG6X,YG 6A,YG 6,YG8N,YG8,YG8C,YG11C,YG 15,YT5,YT14,YT30
*Japan Steel, SKT 4,YXM 4,YXM 42,SNC 815,SK -3,SKS 3,and etc.
***Application:
Rubber,various high glass fiber, mineral fiber and PPA,PPS, PA66, LCP,VO fire protection, ferrous power, magnetic powder and etc.***Treatment:
Heat-treatment
Nitriding treatment
Electroplate hard-chrome
High-frequency quenching
Spraying corrosion wear-resisting dual metal layers
Vacuum quenching
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