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The fastener Note the four questions [2012-02-06]

First, the backwardness of the raw materials and related technologies. The fastener product quality is an important reason is the poor quality of raw materials and its related technological backwardness caused. Such as: cold heading steel wire rod for cold heading steel mainly used in manufacturing hex bolts ,bolt ,rivets,hex nuts and other fasteners, its chemical composition, microstructure, higher, and cold heading steel demand is currently about 1 million tons, of which the automotive industry requires 100,000 tons, but due to technical reasons, the domestic cold heading wire only 300,000 tons a year to import nearly 700,000 tons. According to statistics from related departments, φ6.5mm below 15 million tons φ8mm takes 16 tons φ9mm, the φ14mm 80,000 tons, the domestic market demand.

Second, low level of technology and process equipment, and can not guarantee the consistency of product quality problems. Machine Components are generally bulk, mass-produced products, and there are many varieties, the machining precision products, production technology and equipment require high investment. Foreign use of high efficiency and precision of the plane, the production line or flexible lines to achieve high efficiency automated production.

Third, the key manufacturing and test equipment, General Machine Components on each part of the dimensional accuracy, consistency, performance, reliability and interchangeability requirements are very high and ultra-poor, allowing only a few products, and before delivery. The inspection will be substandard products removed if there is no high-precision and high efficiency equipment, difficult for enterprises in the fierce competition for survival and development. At present, the key equipment of the parts manufacturers in China is mainly dependent on imports, due to wear and tear on the equipment and consumption, the device need to constantly update and transformation. Imported equipment and spare parts are expensive, if it is to accelerate the speed of development of the industry, must as soon as possible to solve the problem of critical equipment.

New product development speed. Mechanical parts industry in China than abroad in technological innovation and new product development behind a lot, especially SMEs lack technical strength and talent, lack of funds and the necessary equipment, lack of scientific and technological information and technology exchange, resulting in long-term tracking and imitation stage, very few have their own intellectual property, research on product development, few enterprises have few independent research and development strength, which is the key issue of the industry to continue to develop.