?Wuxi Duorunde Steel Pipe Co., Ltd.? (Let me comment)? Cold-drawn special-shaped precision steel pipe is a high-precision, high-finish steel pipe whose shape and size can be customized according to needs. This kind of steel pipe is usually produced by cold drawing process, which will be introduced in detail below.
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1. Introduction to cold drawing process? Cold drawing process is an advanced metal processing method suitable for manufacturing High-precision, high-finish steel pipes. In the cold drawing process, the raw steel pipe (usually a hot-rolled pipe or seamless pipe) is drawn and straightened through multiple passes to make its shape and size meet the required requirements. The cold drawing process has the following advantages:
1. It can produce steel pipes of various shapes and sizes to meet the needs of different fields.
2. High precision, good smoothness and stable surface quality.
3. High production efficiency and can be produced on a large scale.
4. High raw material utilization rate and low cost.
2. Production process of cold-drawn special-shaped precision steel pipes
1. Raw material preparation: Select hot-rolled pipes or seamless pipes that meet the requirements as raw materials, and perform surface cleaning and straightening .
2. Blank preparation: The raw material is drawn and straightened in multiple passes to make its shape and size close to the required steel pipe shape.
3. Blank straightening: Straighten the blank through a straightening machine to ensure that its straightness meets the requirements.
4. Blank heating: Place the blank into a heating furnace for heating until its temperature reaches above the recrystallization temperature.
5. Drawing and forming: The heated blank is drawn and straightened through multiple passes to make its shape and size meet the required requirements.
6. Surface treatment: Surface treatment is performed on the formed steel pipe, including polishing, pickling, etc., to remove surface impurities and improve surface quality.
7. Quality inspection: Conduct quality inspection on finished steel pipes, including size inspection, surface quality inspection, etc., to ensure that product quality meets requirements.
8. Packaging and storage: Pack and store the finished steel pipes for subsequent use.
3. Advantages of cold-drawn special-shaped precision steel pipes
1. High precision: Cold-drawn special-shaped precision steel pipes have high precision and small dimensional errors, which can be within ±0.02mm.
2. High finish: The surface finish of cold-drawn special-shaped precision steel pipes is good and can reach Ra 0.2-0.4μm, meeting the needs of high-end fields.
3. High strength: Due to cold drawing processing, the strength of cold-drawn special-shaped precision steel pipes is much higher than that of ordinary steel pipes.
4. Corrosion resistance: Cold-drawn special-shaped precision steel pipes have stable surface quality and good anti-corrosion performance, and can be used for a long time in harsh environments.
5. Strong adaptability: Cold-drawn special-shaped precision steel pipes can be customized in various shapes and sizes according to customer needs to adapt to different application scenarios.
6. Moderate cost: Although the cold drawing process requires higher equipment and process requirements, its high production efficiency and high raw material utilization rate make the cost relatively moderate.
IV. Application fields of cold-drawn special-shaped precision steel pipes
1. Petrochemical industry: used to manufacture oil and gas pipes, petrochemical equipment, etc.
2. Machinery manufacturing: used to manufacture engineering machinery, agricultural machinery, etc.
3. Construction industry: used to manufacture building structures, bridges, high-rise buildings, etc.
4. Automotive industry: used to manufacture auto parts, engine parts, etc.
4. Other fields: such as aerospace, electronic communications, medical equipment, etc. also need to use cold-drawn special-shaped precision steel pipes. ? Cold-drawn special-shaped precision steel pipe, as a high-precision, high-finish steel pipe, has been widely used in various fields.
With the continuous advancement of technology and the continuous expansion of application needs, the production technology and application fields of cold-drawn special-shaped precision steel pipes will continue to expand and improve.