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Fastener Application
Aug 31, 2017

Fasteners, is a fastening connection with the application of a very wide range of mechanical parts. Fasting, widely used in industries such as energy, electronics, electrical appliances, machinery, chemical, metallurgy, mold, hydraulic, etc., in various machinery, equipment, vehicles, ships, railways, bridges, construction, structure, tools , Chemical, instrumentation and supplies, etc., can see a wide range of fasteners, is the most widely used mechanical base pieces. It is characterized by a wide variety of specifications, performance purposes vary, and standardization, serialization, the degree of generalization is also very high. Therefore, some people have a national standard of a class of fasteners called standard fasteners, or simply as standard parts.

Applications: Fasteners are a class of mechanical parts that are used for fastening connections and are widely used. All kinds of fasteners can be seen in all kinds of machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, instruments and supplies. It is characterized by a wide variety of specifications, performance purposes vary, and standardization, serialization, generalization of the species is also very high. Therefore, some people have a national standard of a class of fasteners called standard fasteners, or simply referred to as standard parts. Fasteners are the most widely used mechanical foundation pieces. With China's accession to the WTO in 2001 and entered the ranks of international trade power. China's fasteners a large number of products exported to countries around the world, the world's fastener products are also constantly influx of the Chinese market. Fasteners as one of China's large import and export products, to achieve international standards, to promote China's fastener enterprises to the world, to promote the full participation of fastener enterprises in international cooperation and competition, have a significant practical significance and Strategic significance. Due to the specific requirements of the specifications, dimensions, tolerances, weights, performance, surface conditions, marking methods, and acceptance inspection, marking and packaging of each particular fastener product.

Commonly used detection equipment

Fastener development and design of the most important part of the quality control, from the feed to the finished product shipments have several mark, these major points have different test methods. The first part of the feed is related to the appearance, size, elements, performance, detection of harmful substances, etc.; process is more appearance, size, percussion experiment, forging line; heat treatment is more appearance, hardness, torque, , Metallographic and so on; surface treatment is more of some hydrogen embrittlement testing, coating, salt spray, etc., including the shipment of a hazardous substance detection.

In the size, appearance detection, the common is the second element, contour measuring instrument, coordinate measuring instrument, image sorting machine (this is a full election machine);

Mechanical and chemical testing, the main hardness machine (Luo and Vickers), Rally, metallographic microscope;

Material testing, there is a spectrum analyzer, salt spray test machine.





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