- Model NO.: SJZ
- Technics: Forging
- Material: Bimetallic
- Conical Screw and Barrel: Sjz51/65/80/92
- Nitrided Hardness: 900-1000hv
- Bimetallic Hardness: 57~69HRC
- Surface Roughness: Ra 0.4
- Warranty: 3 Months
- Transport Package: Wooden Case
- Origin: Zhangjiagang of China
- Standard: GB
- Feature: Extrusion
- Materials: Bimetallic
- Nitriding Layer Depth: 0.5-0.8mm
- Bimetallic Layer Depth: 3 mm
- Chrome Plating Layer Depth: 0.03-0.09mm
- Linearity of Screw: 0.015mm
- Trademark: chenxing
- Specification: SJZ
- HS Code: 84779000
Material: High Quality Of Alloy Steel
1. 38CrMoALA(JIS SACM645)
2. 42CMo(JIS SCM440)
3. 9Cr18MOV
4. CW6Mo5Cr4V2
Products Are Processed By The Following Steps:
Hot Treatment
Nitriding Treatment
Electroplating Hard-chrome layer
Hi-frequency Quenching
Spray Coating Bimetallic Layer Of Corrosion And Abrasion Resistant
Vacuum Quenching
Compressing rate of screw can be designed according to different raw material and products.
echnical Information for Extruder Conical Screw and Barrel | |||
Main Base materials | 1.38CrMoAlA (SACM645) | Main Alloy Materials | 1. Ni-based alloy/Deloro alloy |
2. SKD-61 (Special Tool Steel) | 2. Tungsten carbide/Wolfram carbide | ||
3. 42CrMo (Ultrahigh StrengthSteel) | 3. NiCo-based alloy | ||
4. DC53 (Cold WorkDie Steel) | 4. Fe-based alloy | ||
5. W6Mo5Cr4V2 (High-SpeedToolSteel) | 5. Co-based alloy | ||
Processing Technics | 1. Heat treatment | Technical parameters | Nitriding layer depth:0.5-0.8mm |
2. Quenching | Nitrided hardness:900-1000HV | ||
3. Nitriding treatment | Bimetallic layer depth:3 mm | ||
4. Bimetallic alloy welding for screw | Bimetallic hardness:57~69HRC | ||
5. Bimetallic alloy centrifugal casting for barrel | Hard-chrome plating hardness after nitriding:≥950HV | ||
6. Hard-chrome electroplating | Chrome-plating layer depth:0.03-0.09mm | ||
Linearity of screw:0.015mm | Surface roughness:Ra 0.4 |
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Manufacture Front Air Suspension Shock Absorbers 7L6616039D 7L6616040D Airmatic Air Strut Shocks For Q7 2002-2010
Specification
Description: Manufacture Front Air Suspension Shock Absorbers 7L6616039D 7L6616040D Airmatic Air Strut Shocks For Q7 2002-2010
Model: For Q7 Air Suspension Shock Absorbers 7L6616039D 7L6616040D 2002-2010
Position: Front left and right
OEM: 7L6616039D 7L6616040D
Condition: Original rebuild
Material: Rubber Steel Aluminum
Application:For Q7 2002-2010 7L6616039D 7L6616040D
Warranty: 12 months
Delivery: 3-7 days after receiving payment
Gross Weight: 12KG
Description : |
Manufacture Front Air Suspension Shock Absorbers 7L6616039D 7L6616040D Airmatic Air Strut Shocks For Q7 2002-2010 |
Model: |
For Q7 Air Suspension Shock Absorbers 7L6616039D 7L6616040D 2002-2010 |
OEM: |
7L6616039D 7L6616040D |
Material: |
Rubber Steel Aluminum |
Condition: |
Brand New |
Application: |
For Q7 2002-2010 7L6616039D 7L6616040D |
Delivery: |
3-7 days after receiving payment |
Package: |
Neutral Packing or As Requirement |
Place of origin |
Canton, China |
Certificate: |
TS16949 |
Trade term: |
FOB |
Warranty: |
12 months |
Gross weight: |
10 KG |
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