Year1
- 材质：
- Q235B
- 规格：
- 219mm以上
- 质量等级：
- 正品（受质量异议）
High pressure bearing capacity, low resistance, low temperature resistance
Oil and gas, slurry transportation, urban construction
The process flow first conducts full-plate ultrasonic inspection
Technical features
Steel pipe forming During the process, the steel plate deforms evenly, with small residual stress and no scratches on the surface. The processed steel pipe has greater flexibility in the diameter and wall thickness of the steel pipe size range, especially in the production of high-grade thick-walled steel pipes, especially large-diameter thick-walled pipes. It has advantages that other processes cannot match, and can meet the needs of Users have more requirements for steel pipe specifications
Ⅱ. Using the process of pre-welding first and then internal and external welding (precision welding), welding can be achieved at the best position, and defects such as misalignment, welding deviation and incomplete welding are less likely to occur. , easy to control the welding quality
Ⅲ. Carrying out overall mechanical diameter expansion can effectively improve the dimensional accuracy of the steel pipe and improve the distribution of stress within the steel pipe, thereby avoiding damage caused by stress corrosion and at the same time conducive to on-site welding Construction
Ⅳ. Carry out % quality inspection on steel pipes, so that the entire process of steel pipe production is under effective detection and monitoring, effectively ensuring the quality of submerged arc welded steel pipe products
Ⅴ. Entire pipe All equipment in the production line has the function of networking with the computer data collection system to realize real-time transmission of data. The central control room collects technical parameters and quality indicators in the production process
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