| Model Number: | 7 |
|---|---|
| Brand Name: | sheen |
| Place of Origin: | Christmas Island |
| nitriding treatment: | alloy material |
Quick Details
Specifications
Rubber screw and barrel
Specification:
Cold Feed Pin barrel screw specifications:Φ60-?300 L/D=12-18
Rubber cold feeding screw specifications:Φ45~Φ300 L/D=8-20
Rubber hot feeding screew specifications:Φ40~Φ300 L/D=4-6
We can design suitable screw and barrel for you according to different raw material and products!
Screw barrel Material
|
Material |
Heat treatment |
|
38CrMoALA,SACM645,42CrMo,DIN1.8550,SAE8550 |
Nitrided treatment |
|
42CrMo, AISI4140 |
Hard-chrome plating |
|
Cr12Mov,SKD11,SKD61, |
High Frequency quenching |
|
4Cr5MoSiV1,SKD-11,SKD-61 |
Bimetallic frist,then nitrided |
|
YPT72, 4Cr5MoSiV1 |
HVOF |
|
GH113 |
Temepture:300-1400 |
Base material 38CrMoALA chemical composition and main feture
This kind of material is made in China from SHANGHAI BAOSTEEL COMPANY.
|
C |
Si |
Mn |
S |
P |
Cr |
Al |
Ni |
Cu |
Mo |
|
0.35-0.42 |
0.20-0.45 |
0.30-0.60 |
<0.035 |
<0.035 |
1.35-1.65 |
0.70-1.10 |
<0.030 |
<0.030 |
0.15-0.25 |
Screw barrel technical details
|
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 |
|
Double-alloy level |
Level A - containing Tungsten of 40% Level B - containing tungsten of 25% Level C - containing tungsten of 9.5% |
|
Surface Treatment |
Heat Treatment High Frequency Treatment Nitriding treatment(120 Hours) Depth of Nitrided Layer: 0.5-0.8 mm Hardness of Nitrided Layer: 900-1020Hv (HRC56°-65°) Hard Chrome Plating treatment: Thickness of Hard Chrome Plating Layer: 0.05-0.10mm Hardness of Hard Chrome Plating Layer: ≥950HV Nickel alloy plating.treatment: Bimetallic Barrel/Cylinder: Centrifugal Casting (Inlay Alloy) Bimetallic Screw: Plasma Alloy Coating Spraying Depth of Bimetallic Layer: >2mm Hardness of Bimetallic Layer: HRC55°-72° |
|
Basic information |
Roughness of the surface:Ra0.4um Linearity of the screw: ≤0.015mm Linear axis limit: ≤0.02mm Hardness after Hardening & Tempering: HB240-280 Fragility of Nitration:≤Two class |
|
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 |
|
General Terms |
Means of transport: Ocean,Air,Express Production time: About 25 days after we receive the deposit and lead time will different according to the order quantity! |
Our screw and barrel processing flow
Customer order----Product design(customer drawing)---Production flow arrangement----Material Procurement---Hardening and tempering--
--Drilling---Rough turning---Rough thread rolling(Alloy spray welding)---alignment---Fine thread rolling---Mixing---Alignment---High frequency treatment---Alignment---Polishing---Grinding----120 hours Nittriding treatment---Acid piclking----Polishing---Chrome plating----O.D.Grinding---Packaging and Shipping.
Package details
1st, products (screws or barrels) will be brushed anti-corrosive oil
2nd,packed with film,brush oil
3rd,packed in the wooden case