Regarding the status quo and future of China's automotive bolting enterprises, Chen Guangzu, a member of the China Automotive Industry Advisory Committee and a senior expert in the Chinese automotive industry, expressed his views. It is absolutely not difficult for Chinese companies to develop and produce high-strength bolts. Chen Guangzu told reporters that in recent years, the automotive industry has more and more requirements for high-strength bolts, and the difficulty of the production process has also increased, but this does not mean that domestic fastener companies do not have the ability to produce high-strength bolts. Are these companies doing it seriously?
Chen Guangzu said that the production of high-strength bolts, whether raw material supply or consistent production, is not the most advanced problem in the automotive industry. Relevant equipment and technical processes can be improved as soon as possible through various channels. It is difficult for domestic high-strength bolt products to achieve mass production. One of the key reasons is that the company's test data is insufficiently accumulated, and the company has not made enough efforts. Taking the bolt surface treatment process as an example, when the bolt material is different from the material of the fixed component, it is necessary to add a coating to the product to ensure sufficient friction to prevent the bolt from corroding and falling off, and this seemingly simple coating process requires the enterprise to accumulate. Countless test data.
In addition, in the automotive bolt industry, we must not only focus on high strength, but also on high precision, such as the ultra-small bolts used on engine injectors. High strength and high precision are the development direction of the automobile bolt industry.
Looking at it now, domestic fastener companies should adjust the product structure in a timely manner, change the production mode, 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 consisting entirely of mechanical and manual, and the business is relatively simple. Only a few bolts or a certain process for producing bolts are made. A number of such companies are connected in series to form a complete bolt manufacturing industry chain. Such a company is very professional and its products are constantly improving.
Some companies in Zhejiang have a collaborative approach that is closer to Japan's production model. Chen Guangzu said that these enterprises are divided according to the upstream and downstream relationship of the industrial chain. Each enterprise is responsible for one part of production, such as cold heading, heat treatment, etc., and even the product packaging has specialized enterprises to operate. The degree of specialization in the production process of the guaranteed product enhances the quality of the product.
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