Cemented carbide non-standard parts are the equivalent of the concept of standard parts and proposed, meaning products that do not meet the standard. Cemented carbide non-standard parts are cemented carbide parts that are controlled by the production process itself without the strict standard specifications given by the state and without the relevant parameters. Cemented carbide non-standard parts are mainly designed and made according to the customer's application. Relatively speaking, the processing of standard parts is often easier, while the processing of non-standard carbide parts is relatively more difficult.

We all know that carbide products are used in a wide range of industries, such as non-ferrous metals, machining, medical devices, chemical machinery parts, etc. The non-standard carbide products are products or equipment designed and manufactured by customers according to their own usage needs, and the suppliers process and produce them according to the customers' drawings or samples. There is no unified standard and specification, but also has all the superior performance of cemented carbide.

It is difficult to promote the application of domestic products, aluminum cold heading non-standard parts, and even some products have reached the international leading level, but the recognition in the domestic market, the adoption rate is not high. There is a widespread "foreign monks are good to read the scriptures" thinking, there is user companies discriminate against domestic machinery and equipment enterprises, machinery and equipment enterprises discriminate against the phenomenon of domestic stainless steel non-standard parts, especially mechanical industry equipment enterprises to support the localization of domestic stainless steel non-standard parts lack of pressure and motivation, the lack of risk-taking mechanism, therefore, innovation Products are difficult to be recognized or get more application opportunities. The non-standard parts of cemented carbide belong to the innovative move in the production of cemented carbide.

Non-standard parts are proposed relative to standard parts. The non-standard parts are mainly other accessories that are freely controlled by the enterprise without the strict standard specifications set by the state and without the relevant parameters specified outside. There are many varieties of non-standard parts, and there is no standard classification. Roughly divided into metal non-standard parts and non-metal non-standard parts. Standard parts refer to the structure, size, drawing, marking and other aspects have been completely standardized, and the common parts (parts) produced by professional factories, such as threaded parts, keys, pins, rolling bearings, etc.. Broadly speaking, including standardized fasteners, links, transmission parts, seals, hydraulic components, pneumatic components, bearings, springs and other mechanical parts. Narrow sense only includes standardized fasteners.

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