Chen Guangzu: Fastener companies can learn from the Japanese model

With regard to the status quo and future of China's automotive bolt companies, Chen Guangzu, a member of the China Automotive Industry Advisory Committee and a senior expert in the Chinese automotive industry, expressed his views. “China’s R&D and production of high-strength bolts is not absolutely difficult,” Chen Guangzu told reporters. “In recent years, the automotive industry has increasingly demanded high-strength bolts, and the difficulty of the production process has increased. Does not mean that domestic fastener companies do not have the ability to produce high-strength bolts, but these companies have not taken it seriously."

Chen Guangzu said that the production of high-strength bolts, whether raw material supply or consistent production, is not the most advanced issue in the automotive industry. The relevant equipment and technical processes can be improved through various means as soon as possible. One of the key reasons why domestic high-strength bolt products are difficult to achieve mass production is the lack of accumulated enterprise test data, and companies have not made enough efforts. In the bolt surface treatment process, for example, when the bolt material and the fixed part material are different, it is necessary to add a coating to the product to ensure sufficient friction and to prevent the bolt from corroding and falling off. This seemingly simple painting process requires the accumulation of enterprises. Numerous test data.

In addition, in the automotive bolt industry, we must not only pay attention to high strength, but also focus on high precision, such as the use of ultra-small bolts on engine nozzles. High-intensity and high-precision are the development direction of the automotive bolt industry.

Now, domestic fastener companies should timely adjust the product structure, change the mode of production, and learn from the production methods of the Japanese bolt industry. In Japan, a bolt company is likely to have only a few people. It is a production model entirely composed of machinery and handwork, and the business is relatively single, only doing certain kinds of bolts or a certain process responsible for the production of bolts. A number of such companies in tandem form a complete bolt making industry chain. This kind of enterprise is very professional and the product is always improving.

There are some companies in Zhejiang that are closer to the Japanese mode of production. Chen Guangzu said that these enterprises follow the industrial chain's upstream and downstream relations and work in coordination, and each company is responsible for a link in production, such as cold heading, heat treatment, etc. Even product packaging has a dedicated company to operate. This method of collaborative work maximizes This guarantees the degree of specialization in the production of products and enhances product quality.

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