In the steel processing industry where quality is the lifeline, Jiangsu Lianyuan Machinery Manufacturing Co., Ltd. has established a strict and comprehensive full-process quality inspection system. This system runs through every link from raw material incoming to finished product delivery, ensuring that each batch of products meets high-quality standards and laying a solid foundation for the company’s domestic and international market competitiveness.
1. Incoming Raw Material Inspection: The First Line of Defense
The quality control of steel products starts with raw materials. Jiangsu Lianyuan Machinery has set up a special raw material inspection team to conduct strict screening of every batch of incoming iron ore, scrap steel and other raw materials. The inspection items include analysis, mechanical properties testing and impurity content detection. Only raw materials that pass all indicators are allowed to enter the production process.
“We firmly believe that good raw materials are the premise of good products,” said the person in charge of the company’s quality control department. “By strictly controlling the incoming material quality, we eliminate potential quality hazards from the source and ensure the stability of subsequent production.”
2. In-Process Quality Supervision: Real-Time Control of Key Links
During the production process, the company implements hierarchical quality supervision for key links such as steelmaking, forging and machining. In the steelmaking workshop, technicians use advanced spectral analysis equipment to monitor the chemical composition of molten steel in real time, adjusting the proportion of elements to meet the product requirements. In the forging process, professional inspectors conduct on-site inspections of forging temperature, deformation and other parameters to ensure the internal structure and mechanical properties of the forgings.
For the machining link, the company adopts high-precision measuring instruments such as coordinate measuring machines to conduct precision testing on the size and shape of parts, ensuring that the processing accuracy meets or exceeds the design standards. Every key process is equipped with a quality inspection record form, which is filled in and signed by the inspector to realize traceability of quality problems.
3. Finished Product Testing: Multi-Dimensional Evaluation to Ensure Qualification
After the completion of production, all finished products must go through a comprehensive testing process before leaving the factory. Jiangsu Lianyuan Machinery’s professional non-destructive testing room is equipped with ultrasonic testing, magnetic particle testing and other advanced equipment to detect internal defects of products without damage. The physical and chemical test center conducts tensile strength, impact toughness, hardness and other mechanical properties tests on product samples to verify whether the product performance meets the design requirements.
In addition, the company also carries out appearance quality inspection and dimensional re-inspection on finished products. Only products that pass all testing items can obtain the quality qualification certificate and be delivered to customers. This strict finished product testing mechanism has effectively guaranteed the pass rate of products leaving the factory.
Professional Team and Technical Support: The Backbone of Quality Inspection
The smooth operation of the full-process quality inspection system is inseparable from the support of a professional team and advanced technology. The company has a quality control team composed of 15 professional technicians, including 5 experts with medium and senior titles in the field of non-destructive testing and physical and chemical testing. At the same time, as a national high-tech enterprise, the company continuously invests in the upgrading of quality inspection equipment and the training of technical personnel, keeping the quality inspection technology at the advanced level in the industry.
“Quality is the foundation of an enterprise’s survival and development,” said the general manager of Jiangsu Lianyuan Machinery. “We will always adhere to the concept of ‘quality first’, continuously optimize the full-process quality inspection system, and provide customers at home and abroad with more reliable and high-quality steel processing products.”
With its strict full-process quality inspection system, Jiangsu Lianyuan Machinery has won wide recognition from customers. Its products are not only popular in the domestic market but also exported to Europe, America, Taiwan, South Korea and other regions, becoming a model of quality management in the steel processing industry.
