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当前位置:不锈钢铸件的发展
[来源:www.hslcasting.com.cn] [作者:精密铸造] [日期:18-03-31]
我们使用不锈钢铸件,阳极氧化膜染色后经常会出现白色的斑点。这是因为不锈钢铸件组织松散,孔隙度高,含有多种金属和非金属杂质,因此氧化膜的质量通常较难保证不锈钢铸件的方法来避免污染: 方法1,高电压大电流密度的影响。初不锈钢铸件的氧化采用高压电击,被氧化的一部分电击连接块2,表面研磨方法。这个方法是磨损铝轧机填充一直留下的空隙,氧化物的一部分,使缝隙连接在一起,作为桥梁的作用。 3、表面喷丸方法。这种方法是用圆头锤光圈,在敲门前关闭,可以实现的目标。我们要选择根据不锈钢铸件的污染程度对应相应的方法。根据相关数据,铸件清理之前,在坑填渣材料。通过岩相分析表明,渣铁材料的缺陷,硅酸锰和铬硅酸盐硅酸盐和其他化学物质。电子衍射结果表明,斑是黑色的磁铁(Fe3O4)和铁铬尖晶石(FeO说·Cr2O3)。光谱分析结果,硅含量金属组件的缺陷,而且很少锰含量。铸件爆破后,喷砂、铸件表面有颜色的点蚀,点蚀缺陷经常出现在当地的厚部分铸造、角落和内孔,甚至在整个铸件的表面。 When we use stainless steel castings, the anodic coating is often stained with white spots.This is because the stainless steel castings, loosely organized, high porosity, contain a variety of metals and non-metallic impurities, so the quality of the oxide film is usually more difficult to ensure the method of stainless steel castings to avoid contamination: method 1, the influence of high voltage large current density.The oxidation of the stainless steel castings of the first stainless steel is used to the electric shock, the part of the electric shock of the oxidation of the two, the surface grinding method.This method is a part of an aluminum mill that fills in the gaps that have been left in the process of filling and filling the gaps.3, surface shot blasting method.This method is to use a round head hammer aperture to shut down before knocking on the door, which can be achieved.We should choose the corresponding method according to the pollution degree of stainless steel castings.According to the relevant data, before the casting is cleaned, the slag material is in the pit.Through the analysis of rocks, the defects of slag iron materials, manganese silicate and chromium silicate silicate and other chemicals were shown.The electron diffraction results show that the spots are black magnets (Fe3O4) and fero (Cr2O3).The result of spectral analysis, the defect of silicon metal component, and low manganese content.Castings after blasting, sand blasting, the casting surface colored spot corrosion, pitting corrosion defect often appears in the thick part of the local casting and inner hole, the corner, even on the surface of the casting.
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