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Effect of blasting on mold


Sand blast strengthening is by means of hard shots, which continuously and hardly hit the metal surface at high speed to produce strong cold work hardening. Sandblasting can significantly change the stress state, microhardness, micromorphology and phase composition of the surface layer, thereby improving the fatigue strength, impact wear resistance and stress corrosion resistance of the mold. Sand blasting can also change the surface roughness of the mold and effectively remove the surface deterioration layer caused by EDM.

With the development of modern industrial technology, higher requirements have been placed on the performance of molds. Efforts to shorten the production cycle of the mold, improve the quality of the mold, extend the life of the mold, the social and economic benefits directly or indirectly are difficult to estimate. Materials and heat treatment are the most important intrinsic factors that affect mold quality, performance, and service life. Early failure of 60% of molds is caused by material and heat treatment factors. In order to improve the strength of the mold and the abrasion resistance of the mold, fully explore the performance potential of the mold material, and extend the service life of the mold, many effective measures have been taken to save energy, resources, and give full play to the material's performance potential to obtain special properties and Starting from the maximum technical and economic benefits, the development and application of surface strengthening process technology is an extremely important development direction to improve the performance and life of the mold. Shot peening is one of the economical, simple and effective mold surface treatment processes, which is worthy of vigorous promotion. .

The sandblasting strengthening method is simple and easy to use and saves energy. It is suitable for blanking dies, cold work dies, cold heading dies, and hot forging dies, which are mainly fatigue failure forms. For example, when forging dies are in service, they must undergo bending and thermal expansion. Microcracks often occur due to local yielding. The compressive stress generated by sandblasting can delay the formation of microcracks, thereby delaying the occurrence of mold cracks. Sandblasting technology is a simple, low-cost, and widely applicable application. The surface strengthening technology of the mold, which is particularly significant and immediate, has greatly extended the service life of the mold subjected to alternating loads, which is difficult to compare with other strengthening methods.

Adopting mold blasting treatment Dongguan Meijun blasting equipment provides you with a cost-effective mold blasting machine. At the same time, Meijun blasting equipment also specializes in various blasting equipment parts

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