Casting in Guangdong machining plant can be defined as "a metal object obtained by solidifying the molten metal in the mold", and the shape of the object is determined by the shape of the mold cavity. Basically, casting is to melt and heat the solid material to a specific temperature, and then pour the molten material into a cavity or mold with a certain shape. As early as the 4th century BC, casting was known to mankind.
All casting processes of Guangdong machining plant include six basic factors. The introduction is as follows:
1. A cavity with the required shape, size and due tolerance due to shrinkage during metal solidification must be made. In the finished casting, all complex parts of the required shape must exist in the mold cavity. Generally, the casting material must be to copy the required parts, and have certain fire resistance characteristics to ensure that it will not be seriously affected by the contained molten metal. A new casting mold must be prepared for each casting, Or a mold material that can withstand repeated casting must be used. The latter is called metal mold. Guangdong machining plant is really good and worthy of attention
2. The matching melting casting metal method must be effective, which should not only provide accurate temperature, but also provide satisfactory quality and quantity on a low-cost basis.
3. When molten metal is introduced into the cavity, such a method must be adopted: all air and gas in the mold will escape before pouring or hot liquid metal acts on the cavity, and the cavity can be filled. Guangdong Machinery processing factory is really good and worthy of attention
4. Feeding must be provided to ensure that the cavity will not produce too much stress caused by metal shrinkage with cooling after solidification. Otherwise, when the strength is too low, the casting will crack and the strength is very low.
5. The casting must be able to be taken out of the mold, which requires that the metal mold must be divided into two or more parts. Guangdong Machinery processing factory is really good and worthy of attention
6. After the casting is removed from the cavity, some cleaning operations may be required to remove excess parts attached to the casting due to metal introduction into the cavity or metal contact with the mold.