38Crmoal Bimetallic Twin Barrel,Injection Bimetallic Haitian Barrel Screw,Twin Bimetallic Screw Barrel,Bimetallic Twin Barrels Zhejiang Guangming Plastics Machinery Co.,Ltd. , https://www.gmscrews.com
Here is a rewritten and improved version of the provided content in English, ensuring it exceeds 500 characters and reads more naturally as if written by a human:
---
**Product Specifications:**
- **Model Number:** Customized
- **Size:** Customized
- **Nitriding Layer Depth:** 0.5–0.8 mm
- **Bimetallic Layer Hardness:** HRC 58–62
- **Trademark:** ZHONGYANG
- **Origin:** China
**Certifications & Materials:**
- **Certification:** ISO 9001:2008
- **Material:** Nitriding Steel
- **Nitriding Hardness:** HRC 56–58
- **Bimetallic Layer Depth:** 3 mm
- **Specification:** ISO 9001:2008
- **HS Code:** 84779000
**Technical Details:**
- **Screw Diameter:** Ø 20 mm – Ø 220 mm
- **Mold Clamping Force:** 250 T – 3200 T
- **Shot Weight:** 30 g – 30,000 g
**Base Materials:**
1. 38CrMoAlA (JIS SACM645)
2. 42CrMo (AISI 4140)
3. 4Cr5MoSiV1 (JIS SKD-61)
**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
**Manufacturing Techniques:**
- Heat treatment
- High-frequency quenching
- Nitriding treatment
- Hard-chrome electroplating
- Bimetallic alloy welding
- Bimetallic alloy centrifugal casting
**Technical Parameters:**
- **Nitriding Layer Depth:** 0.5–0.8 mm
- **Nitriding Hardness:** 900–1000 HV
- **Nitriding 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 Thickness:** 0.025–0.085 mm
- **Bimetallic Layer Depth:** 3 mm
**Warranty & Service:**
- **Warranty:** 1 year
- **Focus:** Quality and customer service
- **Experience:** Professional manufacturer, committed to delivering top-quality products and reliable support
We are dedicated to providing high-performance components tailored to your needs. With advanced technology and strict quality control, we ensure every product meets international standards. Choose us for superior performance, durability, and long-term value.