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03
2023
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01
Performance description of agricultural machinery castings?
Agricultural machinery castings are metal forming objects obtained by various casting methods, that is, molten liquid metal is injected into a pre-prepared mold by casting, injection, suction or other casting methods, and then the product is cooled and processed by subsequent processing methods such as polishing to obtain an object with a certain shape, size and performance. The following is a description of its performance.
Agricultural machinery castings are metal forming parts obtained by various casting methods, that is, the smelted liquid metal is injected into a pre-prepared mold by pouring, injection, suction or other casting methods, and then the product is cooled and then processed by polishing and other subsequent processing methods to obtain an object with a certain shape, size and performance. The following is an introduction to its performance.
Agricultural machinery castings have a long history of application. Ancient people used castings to make and some household utensils. In modern times, castings are mainly used as blanks for machine parts, and some fine castings can also be directly used as machine parts. In fact, everyone should understand that castings account for a large proportion of mechanical products. For example, in tractors, the weight of castings accounts for about 50-70% of the weight of the whole machine, agricultural machinery accounts for 40-70%, and machine tools, internal combustion engines, etc. are as high as 70%. About 90%. Among all kinds of castings, there are many kinds of mechanical castings, complex shapes, and large quantities, accounting for about 60% of the total output of castings. The second is ingot molds for metallurgy and pipes for engineering, as well as some tools in life. In terms of performance, agricultural machinery castings are actually the theoretical metal liquid forming of castings, commonly known as castings, and the forming technology has a long history. As early as 5000 years ago, our ancestors were able to cast copper and bronze products. Ordinary casting is a widely used metal liquid forming process. Agricultural machinery casting is a method of pouring liquid metal into a cavity, cooling and solidifying, to obtain a blank or part of a certain shape.
The advantage of agricultural machinery castings is that they can produce blanks with complex internal cavities and shapes. Such as various boxes, beds, cylinders, cylinder heads, etc. In particular, its process flexibility is large and its adaptability is wide. There are almost no restrictions on the size of liquid forming parts, ranging in weight from a few grams to hundreds of tons, and in wall thickness from 0.5mm to 1m. In industry, any metallic material that can be melted into a liquid can be used for liquid forming. For cast iron with poor plasticity, liquid forming is a method of producing blanks or parts. In addition to these, one thing is very important, that is, the cost of liquid forming parts is relatively low. Liquid forming can directly use waste parts and chips, and the equipment cost is low. At the same time, the machining allowance of agricultural machinery casting forming parts is small, saving metal. However, some metal processes are numerous and difficult to control precisely, resulting in unstable casting quality. Compared with forgings of the same material, agricultural machinery castings have loose structure, coarse grains, and internal defects such as shrinkage cavities, shrinkage porosity, and air holes due to liquid forming. Its mechanical properties are low.
The above article is some relevant information about the performance description of agricultural machinery castings introduced by the editor. If you didn't know about it before, you can come and have a look now. The next issue will also tell you about the knowledge points related to it. Remember to watch.
Agricultural machinery castings
Shandong Gongchen Machinery Technology Co., Ltd.
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Address: Mucun Town, Fangzi District, Weifang City, Shandong Province
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