screw barrel for injection molding machine - JJ-IN-0002

screw barrel for injection molding machine
Detailed Technical Information
Base Material
1)38CrMoAlA(JIS SACM645)
2)Cr12MOV(JIS SKD-11)
3)4Cr5MoSiV1(JIS SKD-61) 4)42CrMo(AISI 4140)
5)9Cr18MoV
Bimetallic Alloy Materials
1)Fe-based alloy
2)Ni-based alloy/Deloro alloy
3)Co-based alloy
4)NiCo-based alloy
5)Tungsten carbide/Wolfram carbide
Bimetallic Alloy level
Level A - containing Tungsten of 40%
Level B - containing tungsten of 25%
Level C - containing tungsten of 9.5%
Designing
Screw structure and compression
ratio can be designed according
to different products & different
clamping force requirement.
Treatment Technology
1)Longer time Gas Nitriding treatment
2)special anti-wear & abrasion alloy (bimetallic)
3)tungsten carbide
4)cobalt base alloy
5)stainless steel
6)Gh113 nickel based alloy
Treatment
Nitriding treatment(>100 Hours)
Depth of Nitrided Layer: 0.5-0.8 mm
Hardness of Nitrided Layer: >950Hv
Hard Chrome Plating treatment:
Thickness of Hard Chrome Plating Layer: 0.03-0.08mm
Hardness of Hard Chrome Plating Layer: ≥950HV
Nickel alloy plating.treatment:
Bimetallic Barrel Centrifugal Casting (Inlay Alloy)
Bimetallic Screw: Plasma Alloy Coating Spraying
Depth of Bimetallic Layer: >2mm
Hardness of Bimetallic Layer: HRC55°-65°
Material Application
1)General Plastics
2)ABS,PA,PC,PE,PET,PP,PS,EVA,PU,PVC,U-PVC,etc
3)PA + GF(Glass Fiber)
4)Flame-resistant Reinforced Plastics
5)Modified Engineering Plastics
6)All kinds of Mixed Recycled Material(in Scrap or Granule),etc
Basic Infomation
Surface Roughness :Ra0.4um
Linearity of the screw: ≤0.015mm
Linear axis limit: ≤0.02mm
Hardness after Hardening & Tempering: HB260-300
Fragility of Nitration:≤Two grade
General Terms
Means of transport: Ocean,Air,Express
Production time: About 20 days after we receive the deposit and lead time will different according to the order quantity.
Warranty period
2-4years(Depends on the plastic raw materials)
Bimetallic: much longer lifetime.
Competitive Edge
1.Long lifetime,low energy consumption.
2.Wonderful plasticizing
3. Top-quality bimetallic screw and barrel
4. High wear resistance, resistance to corrosion
5. Fast and On time delivery
6. Best customer after-sale service!

Bimetallic Screw production method:
Plasma Alloy Coating Spraying or Wc/Co Whole spray welding
The PTA powder plasma welding applies the positive and negative electrodes of arc welding, allowing the welding path to be completely, welded with the base material. The minimum possibility of the welding path becoming less rigid fully prevents the welding layer from peeling off – thereby effectively upgrading the life time of the screws.
Bimetallic layer analysis :
38CrMoAlA: Cr, C, Si, Mn, Mo, Al, Ni, Cu, P, S
40Cr: Cr, Mn, C, Si, Ni, S, P, Cu
Stainless steel: Cr, Ni, Ti, Mn, N, Nb, Mo, Si, Cu
SKD61: C, Si, Mn, Cr, Mo, V, S, P
Ferrous alloy: Fe, Cr, Si, Ni, B
Nickel alloy: Ni, Cr, Co, Wc, B
Tungsten alloy: W, Ni, Fe, Cu


About Jingjin:
With 23 years,we specialized in manufacturing many types of screws, the barrels can be applied on all types of injection moulding machine,rubber hot-feeding extruder, rubber cold-feeding extruder, pin barrel cold feed extruder, plastic extruder with different specifications for Haitian,Demag,Toshiba, Husky, Nissei ,Berstorff,apx,Aktiengesellschaft etc.We can provide the models of screw including variable pitch and variable depth, variable pitch and equal depth, variable depth and equal pitch, and equal depth and pitch.Groove multi-die type, composite type, mixing type and separating type.Our products are entitled to "Hi-Tech Product"and "Famous Brand" in China many times.
Choosing us,accompanied with excellence!
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