In modern engineering construction, steel pipe is an important building material, and its quality is directly related to engineering quality and safety. As a well-known
carbon steel pipe manufacturer & supplier in China,
Permanent Steel Manufacturing Co.,Ltd (PMC) has been committed to improving product quality and ensuring that the performance and quality of steel pipes meet the requirements of various standards. In the production process of PMC steel pipes, "quality control and quality inspection" is a very important link, so how strict is the "quality control and quality inspection" of PMC steel pipes?
In terms of quality control and quality inspection, PMC strictly follows the relevant national and industry standards. At the same time, it refers to international advanced steel pipe production standards, such as American ASTM standards and European EN standards. It has first-class equipment and technology to ensure product quality at home and abroad. Customer demand. Quality control The quality inspection process includes raw material inspection, production process control, finished product inspection, and factory inspection.
1. Raw material inspection. PMC cooperates with large raw material suppliers such as Baotou Steel, China Railway, Zongheng, Puyang, Jingye, Shandong Iron and Steel to ensure reliable quality of raw materials. And for the raw materials arriving at the factory, we will carry out acceptance inspection to confirm the variety, specification, quantity, quality and other information of the raw materials, and take samples for inspection to ensure that the raw materials meet the production requirements.
2. Production process control: During the production process of steel pipes, real-time monitoring is carried out on key processes such as forming, welding, heat treatment, etc., to ensure stable production parameters, and advanced technology is used to improve the hardness and strength of steel pipes, so that they have better The characteristics of wear resistance, corrosion resistance and tensile strength ensure that the product quality is controllable.
3. On-line flaw detection inspection: In terms of quality control and quality inspection, PMC adopts advanced on-line flaw detection equipment (non-destructive testing of steel pipes), which is mainly used to detect whether there are defects in the quality of welds. The flaw detection process is also divided into two steps. It is necessary to complete the online inspection of the steel pipe body first, and then perform manual ultrasonic flaw detection on both ends of the steel pipe. After the two processes are completed, the flaw detection link is considered complete, and the quality of the steel pipe can be guaranteed.
4. Off-line inspection: Before the steel pipe leaves the factory, strict factory inspection is carried out to ensure that the product quality meets customer requirements.
PMC's off-line inspection items mainly include: initial inspection of steel pipe surface, hydraulic test, weighing and length measurement, residual magnetism inspection, etc. And PMC has an advanced physical and chemical laboratory, which can do mechanical performance experiments and chemical analysis, etc., measure the tensile strength, yield strength, elongation of the steel pipe, and evaluate the bending and compression performance of the steel pipe, and determine whether the material composition of the steel pipe is qualified.
PMC's quality control and quality inspection has been fully reflected in many engineering projects. While providing high-quality steel pipe materials, it ensures that the performance and quality of the steel pipes meet the design requirements, and that the steel pipes have good bearing capacity and service life to ensure the smooth progress and quality standards of the project.
PMC's "quality control and quality inspection" link is rigorous and standardized, ensuring the high quality of steel pipe products. Through strict raw material inspection, production process control, finished product inspection and factory inspection, as well as advanced equipment and technology, etc., it has won a good reputation in the domestic and foreign markets and provided reliable product guarantee for many engineering projects.
