A kind of die casting method of light alloy
A light alloy and casting technology, applied in the field of light alloy manufacturing, can solve the problems of large internal stress, easy defects, poor toughness, etc., and achieve the effect of good toughness of the product
Inactive Publication Date: 2015-09-09
浙江盾安轻合金科技有限公司
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[0002] At present, alloys are used as materials to manufacture various products as a common technology in the industry. As far as the manufacturing method is concerned, compared with the gravity casting method, the die-casting method has high production efficiency, high dimensional accuracy, low mass production cost, compact structure of die-casting parts, tensile strength and High flexural strength, but die castings also have their own defects. Ordinary die castings have fast die casting speed, large internal stress, pores inside, poor toughness, and are prone to defects on products. Moreover, they have higher requirements for strength and toughness. Some parts cannot adopt the die-casting process, which limits the scope of application
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[0011] see figure 1 , the light alloy die-casting method of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0012] The light alloy die-casting method of the present invention can die-cast light alloys such as magnesium alloys, aluminum alloys, and titanium alloys. In this specific embodiment, the die-casted product is a sealing disc of an aluminum alloy scroll compressor, wherein the sealing disc includes a disc body With the riveting post on the disc body, the riveting post is used to rivet the sealing disc and the box body together, which requires relatively high plasticity. The material composition of the sealing disc is Si6.5-7.5%, Fe0.25-0.50%, Cu0.10-0.25%, Mn0.2-0.3%, Mg0.20-0.45%, Zn≤0.35%, Ni< 0.05%, Pb<0.05%, Sn<0.05%, and the rest is Al. Its manufacturing process includes the following steps:
[0013] The first is the materialization process. Heat the continuous melting and holding furnace to above ...
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A die-casting method for light alloys comprises the following steps of: a material melting process: subjecting light alloys to heating, melting, stirring and deslagging in a continuously melting and holding furnace, and then subjecting the light alloys to degassing by utilizing a degassing machine; an injection process: heating and injecting the melt materials in a die-casting charging barrel and subjecting the melt materials to cooling forming to form castings, and an annealing process: subjecting the castings to annealing process and obtaining formed products after air cooling. After a compressor seal plate produced by utilizing the die-casting method for the light alloys is subjected to the annealing process, the toughness of the annealed product is relatively good due to the fact that degassing is performed during the material melting process to remove air bubbles inside the compressor seal plate.
Description
technical field [0001] The invention relates to the field of light alloy manufacturing, and more specifically, relates to a die-casting method of light alloy. Background technique [0002] At present, alloys are used as materials to manufacture various products. It is a common technology in the industry. As far as the manufacturing method is concerned, compared with the gravity casting method, the die casting method has high production efficiency, high dimensional accuracy, low mass production cost, compact structure of die castings, tensile strength and High flexural strength, but die castings also have their own defects. Ordinary die castings have fast die casting speed, large internal stress, pores inside, poor toughness, and are prone to defects on products. Moreover, they have higher requirements for strength and toughness. Some parts cannot adopt the die-casting process, which limits the scope of application. [0003] In view of this, it is necessary to provide a ligh...
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IPC IPC(8): B22D17/00B22D21/04
Inventor 谢志军王自毅
Owner 浙江盾安轻合金科技有限公司