Widen our sight into the shenzhen machinery plant

More a, shenzhen mechanical processing plant - — Mechanical parts: the reason of failure failure for various reasons, in the actual production, the parts failure is rarely caused by single factor, is often a result of the combined action of several factors. Sum up can be divided into the design, materials, fabrication and installation to use four aspects. Possible reasons are as follows: 1, the design for a is caused by the unreasonable design of structure and shape parts, such as parts of the high stress area there is an obvious stress concentration source ( All kinds of Angle, gap, the transition of the small fillet, etc. ; Two working conditions of the parts is wrong, such as overload of work may be underestimated, make a design of the components of the bearing capacity is not enough. 2, the reason of material selection is improper material caused the main reason for the failure. The most common is the designers only to make a decision according to conventional performance index of the material, and these indicators cannot reflect the material; in the failure of some type to force The defects of material itself, Such as shrinkage cavity, porosity, porosity, inclusion and micro crack, etc. ) Also result in component failure. 3, processing reasons because of poor process control can cause various defects caused by the failure. Such as improper heat treatment process control lead to overheating, decarburization, insufficient tempering, etc. ; Forging process bad banded structure, overheating or burnt, etc; Bad cold working process cause finish is too low, mark too deep, grinding crack etc can lead to failure parts. Some defects caused by wrong parts processing and the component design has a lot to do, some defects such as heat treatment. Part shape and structure design are not ignored brought about the naissance of the heat treatment defect ( Such as distortion, cracking) 。 In order to avoid or reduce the parts or cracking during quenching and should be paid attention to when designing parts: uneven thickness of cross section, otherwise easy to shelter in thin easy cracking; Symmetrical structure, adopts closed structure as far as possible avoid a large deformation; Variable cross-section uniform transition to prevent stress concentration. 4, install and use, and the failure parts when installation, too tight, too loose and fixed on the bad, tight, or improper operation may cause failure in use process. Second, the shenzhen mechanical processing plant - — The standardization of mechanical parts: standardized refers to set standards and carry out standard as the main content of all activities. Standardized research field is very broad, in terms of industrial product standardization, it refers to the product varieties, specifications, quality, inspection, or safety and health requirements set standards and implement. The meaning of product standardization itself includes three aspects: ( 1) Serialization of products specifications - — Main parameters of the same kind of product, type, size, structure, etc. , in turn, step, made of series products, with fewer varieties specifications can meet the needs of the user's wide; （ 2) Spare parts of - — The same type or different types of products in use structure similar parts ( Such as bolts, bearing, coupling and reducer, etc. ) Gm swap, after unified implementation; （ 3) Product quality standardization - — Product quality is the 'lifeline' of the enterprise, to ensure the quality of products must be qualified and stability design, processing, assembly, inspection, and even the packaging storage and transportation of standardization. In this way, can be in an impregnable position in the fierce market competition. The product standardization is of great significance: can implement specialized universiade on manufacturing production, can improve the product quality and reduce cost; In the aspect of design can reduce design work; In terms of management, maintenance, can reduce inventory level and is advantageous for the replacement of damaged parts. Mechanical parts - Ability to work a variety of mechanical parts machinery and engineering structures are made up of several components.
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