With the development of science and technology and the flourishing development of foundry industry, different casting methods have different casting contents. Taking the most extensive sand casting as an example, the casting preparation includes two major tasks: molding, material preparation and molding. Sand casting is used to form the core making all kinds of raw materials, such as casting sand, sand binder and other materials, and the preparation of sand, sand, paint etc. are collectively referred to as the molding material molding material preparation task is in accordance with the requirement of the casting, metal properties, selection of sand and binder and accessories. Then according to a certain proportion mix them into the sand and core sand with certain properties. Sand casting - the casting process for producing castings in sand molds. Steel, iron, and most nonferrous alloy castings can be obtained by sand casting. Because of other materials is low for sand casting mould manufacture simple, easy to get, the single production of castings, mass production and mass production can adapt, for a long time, has been the basic process in the production of casting.
Aluminum Alloy sand casting technology of casting technology on casting orders: Network Abstract: This paper introduces the production process and characteristics of sand casting, casting process includes introduction, and on the basis of further involvement Aluminum Alloy sand casting process. In this paper, the research on porosity defects in sand casting of aluminum alloy and the elimination of porosity defects in sand casting aluminum alloy castings are expounded. Key words: sand casting, aluminum alloy casting is a kind of metal hot processing technology which has a history of about 6000 years. China has entered the heyday of bronze casting around 1700 BC to 1000 BC, and has reached a fairly high level in technology. Casting refers to the liquid at room temperature, but soon after the solidification of the material into a particular shape of the mold, to be solidified into the form of processing. The cast material is mostly solid but heated to liquid metal (copper, iron, aluminum, tin, lead, etc.), while the mold material can be sand, metal, or even ceramics. The methods used will vary in response to different requirements.
