Bimetallic Conical Twin Screw Barrel for PVC Pipe Extruder
Vacuum induction melting, melting gold, medium frequency melting, induction melting, melting furnace, Ningbo Dedao Electronic Technology Co., Ltd , https://www.nbdedao.com
**Product Specifications:**
- **Model No.:** ZYT422
- **Plastic Processed:** PVC
- **Automation Level:** Automatic
- **Size:** Customizable
- **Nitrided Layer Depth:** 0.5–0.8 mm
- **Trademark:** ZHONGYANG
- **Origin:** China
- **Type:** Pipe Extruder
- **Screw Type:** Twin-Screw
- **Control System:** Computerized
- **Material:** Nitriding Steel
- **Nitrided Hardness:** HRC 56–58
- **Certification:** ISO 9001:2008 Approved
- **HS Code:** 84779000
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**PVC Pipe Bimetallic Conical Twin Screw and Barrel**
**Specifications:**
Available in sizes such as 45/90, 45/100, 50/105, 51/105, 55/110, 55/120, 58/124, 60/125, 65/120, 65/132, 68/143, 70/140, 75/150, 80/143, 80/156, 92/188.
Custom options are available based on customer requirements.
The screw compression ratio can be tailored to suit different materials and product types.
**Base Materials:**
1. 38CrMoAlA (JIS SACM645)
2. 42CrMo (AISI 4140)
3. 9Cr18MOV
**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
- Screw linearity: 0.015 mm
- Hard-chrome plating hardness after nitriding: ≥ 950 HV
- Chrome-plating thickness: 0.025–0.085 mm
- Bimetallic layer depth: 3 mm
**Warranty & Service:**
1-year warranty. We focus on quality and service, with years of experience in manufacturing. We are your reliable partner in the industry.
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**Our Company:**
**Products Application:**
1. General plastics, including PVC
2. Material compounds like CaCO3, glass fiber, recycled materials, and stabilizers
3. ABS, TPR, TPU, PMMA, C-PVC, UPVC, RPVC, PET, EVA, PU, etc.
4. Scrap and waste plastic, PVC recycling
5. Modified engineering plastics
**Terms and Conditions:**
- **Means of Transport:** Ocean, Air, Express
- **Production Time:** Approximately 20–30 days after receiving the advance payment
**Production Process:**
Order received → Design and drawing confirmation → Blanking and thermal refining → Heat treatment → Rough turning → Polishing → Drilling for barrel → Semi-finishing machining → Bimetallic welding → Centrifugal casting for barrel → Polishing → Nitriding treatment (120 hours) or high-frequency quenching → Hard-chrome plating → O.D. grinding → Honing for barrel → Alignment → Polishing → Inspection → Packing and shipping
**ZY SCREW's Advantages:**
- First-class design and R&D team
- High-quality and durable screw barrels
- Professional sales team ready to assist you anytime
- Excellent customer service, especially after-sales support
- Strong company backing for long-term cooperation
**Welcome to contact us! Camille will respond to you promptly.**
Induction melting system is a non-contact metal melting technology based on the principle of electromagnetic induction. It generates eddy currents in the metal raw materials in a closed container through high-frequency or medium frequency current, and heats them until the metal is melted. It is commonly used for the melting and refining of steel, non-ferrous metals and alloys. This process has become one of the important means of modern metal smelting due to its high efficiency, cleanliness, and controllability.
working principle
The key to an induction melting system lies in the induction coil, which forms a strong alternating magnetic field around the coil when high-frequency or medium frequency alternating current passes through it. Conductive metal raw materials placed in a magnetic field generate eddy currents due to electromagnetic induction effects, which generate heat through resistance and ultimately heat the metal to its melting point. Due to the self stirring effect formed by the metal melt pool itself, the melting process is uniform and efficient.
component
Induction coil: generates an alternating magnetic field to heat metal.
High frequency/medium frequency power supply: Supply the required AC power.
Cooling system: Keep the coil temperature moderate to prevent overheating.
Control system: Adjust power output and monitor the melting process.
Melting crucible: accommodates and holds the metal to be melted.
Key advantages
Efficient melting: rapid heating, high energy conversion efficiency.
Uniform melting: The stirring effect naturally formed in the molten pool results in uniform composition.
Clean and environmentally friendly: Closed systems reduce pollutant emissions.
Energy saving and consumption reduction: saves energy compared to traditional methods.
High degree of automation: easy to achieve continuous production and reduce labor demand.
application area
Induction melting systems are widely used in metal processing and manufacturing industries
Steel industry: producing various types of steel and steel grades.
Nonferrous metals: melting of aluminum, copper, zinc, etc.
Precision casting: Preparation of high-quality alloys.
Gemstone processing: melting and refining of gold and silver.
Scientific research: Preparation of metal samples in the laboratory.
Development Trend svacuum induction melting
With the innovation of materials science and power electronics technology, induction melting systems are moving towards intelligence and greenness. Using a higher frequency power supply to improve melting rate and purity; Through data collection and analysis, achieve optimized control of the smelting process; Develop environmentally friendly fluxes and high-temperature resistant materials to further reduce energy consumption and environmental impact. At the same time, induction melting equipment is also developing towards modularity and miniaturization to meet the needs of more segmented markets.