Bimetallic Screw
Your Professional Bimetallic Screw Supplier
Established in 2020 as part of East Prospects Int'l Trading Group (referred to as East Prospects), Ningbo DW Plastics Machinery Co., Ltd. (referred to as DW Machinery) specializes in the production of various precision components and the trading of machinery within this industry. Its main product and service offerings include bimetallic, nitrided, or chrome-plated screw barrel sets; tie bars, column shafts, nuts, and pistons; heater bands and couplings; gearboxes (as a sales agent); new and used injection molding machines (as a sales agent); and new and used extrusion machines (as a sales agent).
Why Choose us
R&D Strength
DW Machinery possesses robust research and development capabilities, independently conducting product development, design, and innovation. The company has obtained multiple product patents.
Quality Control
In terms of quality control, as an ISO 9001 certified enterprise, DW Machinery continuously enhances its quality management system by implementing precise inspections at every stage of the production process.
Advanced Production Equipment
DW Machinery is also equipped with a comprehensive range of advanced manufacturing equipment, including a CNC Machining Center, CNC Turning Machine, Inner Hole Grinding Machine, 13-Meter Deep Hole Boring Machine, NC Drilling Machine, Computer-Controlled Nitriding Furnace System, Centrifugal Casting Furnace, PTA Bimetallic Spraying Equipment, Gear Milling Machine, and more.
Parameter
|
Alloy Components |
Hardness (HRC) |
Abrasion Resistance |
Corrosion Resistance |
Application |
|
Ni. Cr, Si |
52– 56 |
x |
x |
Recycling & engineering plastics with less than 30% reinforced additives. |
|
Ni, Cr, W |
54– 58 |
xx |
x |
Engineering plastics, reinforced additives less than 50%. |
|
Co, Cr, W |
44 – 48 |
x |
xx |
Reinforced additives and corrosive plastics less than 20%. |
Benefits of Bimetallic Screw
Enhanced Wear Resistance
The alloy layer of bimetallic screws significantly improves wear resistance against abrasive fillers, additives, and processing conditions. This extends the operational life of the screws and reduces downtime for maintenance and replacements.
Improved Processing Stability
Bimetallic screws offer enhanced thermal stability and resistance to deformation, ensuring consistent processing performance over extended production runs. This results in higher productivity and reduced variability in product quality.
Cost Savings and Operational Efficiency
By minimizing wear and extending service intervals, bimetallic screws reduce maintenance costs and downtime associated with screw replacements. This improves overall operational efficiency and reduces production costs.
Versatility and Adaptability
Our engineering expertise ensures that each bimetallic screw is optimized for maximum performance and compatibility with various extrusion applications.
Head Forming (Stainless Steel)
The first step is to form the head of the screw using stainless steel. Molds are used to shape the material into the desired screw head form.
Welding
The stainless steel head is then welded to the alloy steel tail, and an inspection process confirms the weld is strong and safe.
Pointing
The tail end, made from alloy steel, is formed into the required shape using advanced forming processes.
Thread Rolling
The screw's threads are created by rolling the workpiece, giving the bi-metal screw the threading necessary for its applications.
Heat Treatment
Heat treatment is applied to enhance the firmness and hardness of the alloy steel portion.
Surface Treatment
Finally, the screws undergo surface treatments like plating or painting to improve rust resistance and appearance.
Applications of Bi-Metal Screws
Roofing, wall, and window systems
Bimetallic screws are great for holding together steel parts in different construction areas. Their strong penetration capabilities allow them to fasten metal panels to steel or wooden frameworks firmly. Moreover, they are resistant to corrosion, which means they can last a long time even when used outdoors, where rain and humidity might cause other materials to rust.
Industrial buildings
Industrial facilities, such as factories, solar panel installations, and power plants, often utilize bimetallic screws for structural integrity. In these situations, the screws must resist not only high stress from heavy machinery but also the effects of chemicals and other industrial pollutants. Bimetallic screws are a dependable solution as they can endure both wear and erosion. For solar panel structures, in particular, bimetallic screws are used to mount panels on metal racks or frames in outdoor environments.
Public infrastructure
Large-scale infrastructure projects such as airports, power systems, bridges, and coastal developments benefit from the strength of bimetallic screws. These projects often require fasteners that can hold heavy use, constant exposure to changing weather conditions, and potentially erosive situations. In power systems, these screws keep electrical equipment stays mounted.
We will help you to choose the best shipping way according to your detail requirements. By sea, by air, or by express, etc.
1. The time frame of an order delivery is divided into two parts:
Processing time: 7-14 Days
Shipping time: 20~30 Days
2. Shipping methods: DDP, DAP, EXW, etc.
3. Shipping fee:The shipping fee will be changed according to every pacel's weight.