| Model Number: | 2 |
|---|---|
| Brand Name: | Sheen |
| Place of Origin: | China (Mainland) |
| nitriding treatment: | alloy material |
Quick Details
Specifications
Parallel Twin Screw and Barrel
Specification:
Ф35/2, Ф45/2, Ф50/2, Ф65/2, Ф80/2, Ф90/2, Ф105/2, Ф125/2, Ф130/2, Ф150/2, Ф180/2, Ф200/2
According different material and different plastic product to choice different compress rate and L/D
Twin screw and barrel made: CINCINNATI, BATTENFELD, KRUSSMAFFEI, BAUSANO and AMUT model spares
Advantages
1. Parallel twin screw and barrel has the advantage of lower rotation speed, smaller shear stress between the small screw
2. Good plasticization, high productivity, small shear force, stable pressure , less wear and tear and low cost.
Application:
PVC Pipe,PVC sheet,PVC profile,PVC pelletizing,PVC foaming,WPC+PVC,WPC+PE and etc.
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