galvanized sheet metal fabrication.Aluminum alloy die casting manufacturers for hard points of experience

　　Aluminum alloy die casting manufacturers as the production of aluminum alloy die casting manufacturers, aluminum alloy die casting parts may appear a variety of defects are very familiar, not only familiar with how to solve, but also familiar with how to produce, so as to prevent the production of defects, here is to say, aluminum alloy die casting manufacturers for hard points of experience.

　　Aluminum alloy die-casting manufacturers in the production of aluminum alloy die-casting parts, will encounter the hardness of the die-casting parts inside the small particles or blocks, these collectively referred to as hard points, die-casting parts appear hard points easy to cause damage to the tool, aluminum alloy die-casting manufacturers in order to solve the hard point, you need to understand the production of hard points.

　　Aluminum alloy die casting manufacturers have summarized their experience. It is found that there are four sources of hard points. First, when smelting aluminum alloy, aluminum and refractory bricks in the furnace react to generate oxides with higher hardness, that is, hard points; Second, when melting aluminum alloy, the silicon powder added to it is not fully dissolved, forming a solid hard point in the metal liquid; Third, because the aluminum alloy is used too long, there is a segregation phenomenon, and the precipitated solid substance is the hard point; The fourth is a composite hard point, which is composed of aluminum oxide and some impurities. These are the sources of hard points found in aluminum alloy die casting parts by manufacturers.

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