Wuxi Duorunde Steel Tube Co., Ltd (My Answer); The production process of seamless precision steel tubes and precision alloy tubes mainly includes the following steps:
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1.Preparation of raw materials: choose suitable pipe billets, usually made of high-quality carbon steel, alloy steel and other materials, and inspect and clean them to ensure that the surface quality and dimensional accuracy meet the requirements.?
2. Heating and piercing: the billet is put into the heating furnace for heating, and after reaching a certain temperature, piercing is carried out to roll the billet into the shape of seamless steel pipe.
3. Rolling and Extruding: Through multiple passes of rolling and extruding, the perforated steel pipe is further processed to achieve the required dimensional accuracy and shape.
4. Heat treatment: Heat treatment is carried out to adjust the mechanical properties and corrosion resistance of the steel pipe. Depending on the material and application, the way and conditions of heat treatment will be different.
5. Finishing and polishing: the heat-treated steel pipe is finished and polished to remove surface defects, improve surface quality, and achieve the required dimensional accuracy and finish.
6. Non-destructive testing: non-destructive testing to ensure that the internal quality of the steel pipe meets the requirements, such as ultrasonic testing, ray detection.
7. Quality Inspection: Quality inspection of steel pipe, including size inspection, surface quality inspection, etc., to ensure that the product meets the standards and customer requirements.
8. Packing and Delivery: Pack the qualified steel pipes and deliver to customers.
In the production process, the following points need to be paid attention to:
1. Material Selection: According to different uses and requirements, choose the suitable raw materials and make sure that their quality and performance meet the requirements.
2. Heating and piercing: the heating temperature and piercing process need to be adjusted according to different materials and specifications to avoid problems such as surface defects and cracks.
3. Rolling and extruding: Control the parameters of rolling and extruding process, such as rolling speed, deformation, etc., in order to obtain the required shape and dimensional accuracy.
4. Heat treatment: according to different materials and applications, develop a reasonable heat treatment process, and strictly control the heating rate, cooling rate and temperature and other parameters to ensure that the steel pipe to obtain good overall performance.
5. Finishing and polishing: the use of reasonable finishing and polishing process, in order to remove surface defects, improve surface quality, and achieve the required dimensional accuracy and finish.
6. Non-destructive testing: Adopt appropriate non-destructive testing methods and techniques to ensure that the internal quality of steel pipe meets the requirements.
7. Quality Inspection: Strict quality inspection is carried out to ensure that the products meet the standards and customer requirements.
8. Packing and Delivery: Reasonable packing of qualified steel tubes and deliver them to customers on time.? The production process of seamless precision steel tubes and precision alloy tubes requires strict control of factors such as the quality of raw materials, the adjustment of process parameters, the temperature and time of heat treatment, as well as non-destructive testing and quality inspection, in order to ensure that the quality and performance of the products meet the requirements.