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2. Anti-corrosion and wear-resisting duplex metal spraying technology
3. Special alloy powders are sprayed and welded on the screw's ridge, using different alloys and welding methods for different functions. |
| Materials | 38CrMoAlA (JIS SACM645), SKD61, etc. | Application | PS, HIPS, ABS, SAN, EPN/LDPE, HDPE, UHMPE, EVA, PP, PVC, PMMA, POM, PAST, PET, PBT |
| Nitride Depth | 0.4 mm – 0.7 mm | Technology | 1. Longer time gas nitriding treatment
2. Special anti-wear and abrasion alloy (bimetallic)
3. Tungsten carbide
4. Cobalt base alloy
5. Stainless steel
6. GH113 nickel-based alloy |
| Nitride Hardness | 950–1050 HV | Packing | Wrapped by film in wooden case |
| Nitride Brittleness | ≤Grade One | Payment Term | T/T, L/C, Western Union |
| Surface Roughness | Ra 0.4 µm | Delivery Term | 20–30 working days |
| Screw Straightness | 0.015 mm | Port Departure | Shanghai/Ningbo |
| Alloy Hardness | HRC 55–62 | Min. Order | 1 set |
| Alloy Depth | 1.5 mm – 3.5 mm | Warranty Period | 2–4 years (depending on raw materials)
Bimetallic: much longer lifetime |
| Nitriding Time | Over 180 hours | | |
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**Product Details:**
- **Model No.:** Injection Screw Barrel
- **Structure:** Vertical and Horizontal Composite
- **Automation:** Automatic
- **Trademark:** ZHONGYANG
- **Specification:** ISO9001:2008 Certified
- **HS Code:** 84779000
**Additional Information:**
- **Type:** Injection Blow Molding
- **Plastic Type:** Thermoplastic
- **Computerized:** Yes
- **Transport Package:** Slushing Oil Coated & Film Wrapped in Wooden Case
- **Origin:** China (Mainland)
**Description:**
The injection screw barrel is designed for PVC injection molding and serves as a key component in plastic machinery. It is available in various specifications, including:
- **Screw Diameter:** Φ 20mm – Φ 220mm
- **Mold Clamping Force:** 250T – 3200T
- **Shot Weight:** 30g – 30,000g
**Base Materials:**
1. 38CrMoAlA (JIS SACM645)
2. 42CrMo (AISI 4140)
3. 4Cr5MoSiV1 (JIS SKD-61)
4. 9Cr18MOV
5. HPT
**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
**Technologies Used:**
- Heat treatment
- High-frequency quenching
- Nitriding treatment
- Hard-chrome electroplating
- Bimetallic alloy welding
- Bimetallic alloy centrifugal casting
**Technical Parameters:**
- **Nitrided Layer Depth:** 0.5–0.8 mm
- **Nitrided Hardness:** 900–1000 HV
- **Nitrided Brittleness:** Less than Grade 1
- **Surface Roughness:** Ra 0.4 μm
- **Screw Straightness:** 0.015 mm
- **Hard-chrome Plating Hardness after Nitriding:** ≥950 HV
- **Chrome-plating Layer Depth:** 0.025–0.085 mm
- **Bimetallic Layer Depth:** 3 mm
**Warranty & Service:** 1 Year
**About ZY:**
1. **Strong Team:** We have dedicated teams in sales, design, production, inspection, and customer service to provide the best experience.
2. **High-quality Products:** We use advanced equipment like CNC machines and Stellite PTA welding machines to ensure top quality.
3. **Global Market:** With over 5 years of foreign trade experience, we serve customers worldwide.
4. **Strategic Location:** Located in Jintang Town, Zhoushan City, near Ningbo and Shanghai Ports.
5. **Professional Attitude:** We maintain a responsible and professional approach to meet all customer needs.
**Welcome to Contact Us!**
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**Table: Twin Conical Screw Barrel**
| Parameter | Specification | Notes | Description |
|----------|---------------|-------|-------------|
| Diameter | Φ25/53, 35/77, 45/90, 51/10, 55/110, 65/120, 65/132, 70/140, 75/150, 80/156, 80/172, 90/184, 92/188, etc. | Designing | Screw structure and compression ratio can be customized based on products and materials. |
| Standard Specifications | ISO9001, GBT9001-2000, SO9001-2000, IAF, BOS, CNAS | Advantages | 1. Long-time nitriding technology