Cold Drawn Special-Shaped Tube

Cold Drawn special-shaped tube is a high-performance tube made by cold drawing process, with special cross-sectional shape, widely used in automobile manufacturing, mechanical equipment and other fields. Different from traditional round tubes, special-shaped tubes can be made into various complex cross-sectional shapes according to specific needs, such as ellipse, rectangle, hexagon, octagon and other irregular shapes. The cold drawn process makes the tube have excellent mechanical properties and precise dimensional control.

CBIES incorporates strip steel cold bending forming, round tube cold bending forming and drawn forming techniques into its process design, thereby catering to the customization needs according to customer requirements.

1. Special-shaped cross-section shape: According to customer needs, a variety of special-shaped cross-section tubes are produced to meet the special needs of different application scenarios.

2. High-precision control: The cold drawing process can produce special-shaped tubes with precise dimensions and stable shapes, and the tolerance is controlled within a very small range to meet high-standard application requirements.

3. Diversified subsequent processing: Comprehensively provide rolling, stretching, pressing, 2D sawing, 3D laser cutting, plug-in and robot welding and other processing services to meet the diverse needs of customers in one stop.

4. Flexible production: The process has strong adaptability, and the mold and production process can be quickly adjusted according to customer needs, and special-shaped tubes of various shapes and sizes can be flexibly produced.

Cold drawing process

Cold Drawn special-shaped tubes are mainly produced by the cold drawing process. Cold drawing refers to the process of passing the raw materials through the die at room temperature, applying tension to extend and shape them. Compared with the hot rolling process, cold drawing can better control the dimensional accuracy and surface quality of the tube.

Subsequent processing technology

1. Rolling: The special-shaped tube is bent by rolling equipment, which can achieve smooth bending with a large radius and is suitable for the manufacture of various structural parts.

2. Stretch bending: The tube is bent by tension and die, which is suitable for the manufacture of high-precision and complex-shaped bent parts.

3. Press bending: The tube is bent by a press, which can achieve precise bending with a small radius and is often used in the production of complex structural parts.

4. 2D sawing: Use high-precision sawing equipment to cut the two-dimensional plane to ensure that the cut is flat and smooth to meet the needs of different lengths and shapes.

5. 3D laser cutting: Advanced 3D laser cutting technology can perform complex 3D space cutting with high precision and high speed, which is suitable for the precision processing of special-shaped tubes.

6. Plug-in processing: Process plug-in holes and sockets on special-shaped tubes according to needs, which is convenient for subsequent assembly and connection, and improves the practicality and diversity of products.

7. Robot welding: Robot welding technology is used for welding processing, with stable welding quality and high efficiency, which is suitable for mass production and high-strength connection.

Process flow

1. Material preparation: Select high-quality steel for pretreatment, such as pickling, phosphating, and lubrication treatment, to reduce friction and damage during drawing.

2. Cold drawing: The pretreated tube passed through the drawing machine and passed through the die under the action of tension to gradually change its cross-sectional shape and size.

3. Heat treatment: Through appropriate heat treatment (such as annealing), the toughness and ductility of the material are restored and its mechanical properties are improved.

4. Surface treatment: Surface treatment such as descaling, polishing, galvanizing, etc. is carried out to improve corrosion resistance and appearance quality.

5. Subsequent processing: Rolling, stretching, pressing, 2D sawing, 3D laser cutting, plug-in processing, and robot welding are carried out according to customer needs to ensure that the product meets the final use requirements.

6. Inspection and packaging: Strict size and quality inspection of the final product to ensure that it meets customer requirements and protective packaging is carried out to prevent damage during transportation.

CBIES cold drawn special-shaped tubes have a variety of shape designs, high-precision size control, excellent mechanical properties, and comprehensive subsequent processing services, which make them have a prominent position in the fields of automotive parts, machinery manufacturing, and high-end furniture.