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                Process requirements and cleaning procedures for sand casting

                2020-01-13 11:49:47

                Sand casting is mainly used to model and core various raw materials when it is used, such as its foundry raw sand, molding sand binder and other auxiliary materials, as well as molding sand, core sand, coating, etc. made of them are collectively called modeling materials. The task of preparing the modeling material is to select the appropriate raw sand, binder and auxiliary materials according to the requirements of the casting and the nature of the metal, and then mix them into a molding sand and core sand with certain properties according to a certain ratio. Commonly used sand mixing equipment are wheel type sand mixer, counter current sand mixer and continuous sand mixer. The latter is specially designed for mixing chemical self-hardening sand, continuous mixing and fast sand mixing speed.

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                Sand casting is carried out based on the requirements of the casting process, after determining the molding method and preparing the molding materials during use. The accuracy of the casting and the economic effects of the entire production process depend mainly on the use. This process. In many modern foundry workshops, the molding and core making are all mechanized or automated. Commonly used sand molding and core making equipment include high, medium and low pressure molding machines, air punching molding machines, boxless injection molding machines, cold core box core making machines, hot core box core making machines, and coated sand core making machines.

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                After the sand casting is taken out of the casting cooling mold, there are gates, risers, metal burrs, and seams. Sand castings also adhere to sand, so they must undergo a cleaning process. The equipment for performing such work includes a polishing machine, a shot blasting machine, a pouring feeder cutting machine, and the like. Sand casting cleaning of sand castings is a process with poor labor conditions, so when choosing a molding method, it should be considered to create convenient conditions for sand cleaning. Due to special requirements, some castings have to be post-processed, such as heat treatment, shaping, anti-rust treatment, rough machining, etc.

                The casting process can be divided into three basic parts, namely the preparation of the cast metal, the preparation of the mold and the processing of the casting. Casting metal refers to the metal material used for casting in casting production. It is an alloy composed of one metal element as the main component and the addition of other metal or non-metal elements. It is customarily called a casting alloy. Cast steel and non-ferrous alloys.

                 

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                After the casting is taken out of the casting cooling mold, there are gates, risers and metal burrs. Sand castings also adhere to sand, so they must undergo a cleaning process. The equipment to perform this kind of work includes shot blasting machines, gate feeders, etc. Sand casting clean-up is a process with poor labor conditions, so when choosing a molding method, it should be considered to create convenient conditions for sand clean-up. Due to special requirements, some castings have to be post-processed, such as heat treatment, shaping, anti-rust treatment, rough machining, etc.

                 

                Dongrun Casting foundry is special in sand cast aluminum process,die cast aluminum process and aluminum permanent mold process. If you have any sand cast aluminum projects, welcome to send us, we can give you good solution,fast lead time and good price.


                特黄特色的大片观看免费视频

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