The selection of raw materials for use steel grit steel scrap, increase the best ratio of rare metals and alloys

- Nov 09, 2017 -

The selection of raw materials for use steel grit steel scrap, increase the best ratio of rare metals and alloys, the electric furnace smelting, modern equipment to produce into steel grit, and after repeated heating treatment, take the initiative to choose, steel grit in the process of liquid metal forming steel grit, its chemical composition and particle size are tightly controlled, to ensure its mechanical function with a variety of USES.In each produce link has the closest quality, produce steel shot the internal arrangement closely, invulnerability to breakage and uniform particle size distribution, with proper hardness, impact resistance is strong, long service life.
Shot blast cleaning process, low labor intensity, high mechanical degree and good cleaning quality, can achieve the effect of the roughness is suitable for coating, thus is widely used in many fields.But has pollution to the environment, especially in dry sand to the environment pollution is great, when need to cover other adjacent objects.Shot peening is one of the steel surface pretreatment of the commonly used and most industrialized derusting method.Shot peening cleaning methods mainly include dry spray pill, wet sand blasting, vacuum shot peening, etc.
When the working pressure of compressed air is 0.4 ~ 0.5 Mpa, the sand jet or steel grit top speed of 50 ~ 70 m/s.When continuous sand or shot at such a high speed jet in the steel surface, the force and friction force is very big, rely on impact, such as grinding effect derusting.The sand or shot injection effect, is through the injector.Injector with inhaled and extruding type two kinds.
Steel shot peening and sanding principle basic same, can use the appropriate pressure of compressed air, the sand or high speed steel shot dozens of meters per second, impact scale and rust layer on the surface of the steel, so that the scale and rust layer on the surface of the steel plate were rapidly cleared.

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