Why are common copper alloys smelted

Common copper boron alloy, copper manganese alloy, phosphorus copper alloy, magnesium copper alloy and so on why to melt first. There are many kinds of copper alloy, common copper boron alloy, copper manganese alloy, phosphorus copper alloy, magnesium copper alloy and so on. These alloys have been widely used in all walks of life. Before copper alloys can be formed, however, there is a very important job that must be done, and that is copper alloy melting. The purpose of copper alloy smelting is mainly three aspects: one is to melt the metal to form a frittering liquid, so that there is enough fluidity to fill the film cavity during casting; The second is to remove impurities through chemical reactions or physical adsorption, sedimentation and other refining measures to make the metal more pure. The third is to configure the alloy, that is, melt and refine at high temperature to obtain qualified alloy melt composition. The main steps of copper alloy smelting: 1. Clean the charge to ensure that it has no water and no oil. Preheating before loading furnace, put the approximate ratio is: copper 800 gold, zinc 20 jin. 4 deoxygenation, commonly used deoxygenation method: phosphorus copper alloy, magnesium copper alloy. Deoxygenation products should be completely removed, otherwise it will increase the content of impurities in the alloy liquid.