What are the requirements for the casting process?
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Guide：The quality of the wear-resistant hammer is very strict with the casting process. Casting a hammer is a very technical job. The requirements of the manufacturer are not only technical, but also the strength of the enterprise, because it requires that the equipment for casting the hammer must reach a certain level. The casting of the hammer is divided into many parts. The wear resistance of the hammer is affected by various factors, but for the production of the hammer, how to maximize the performance of the wear-resistant material is greatly affected by the manufacturing process. In the production process of the hammerhead, it is first necessary to carry out the process design for the production of the hammerhead, and whether the process design is reasonable and scientific is directly related to the quality of the hammerhead. The process design before production can avoid the defects of the hammerhead and improve the wear resistance. The yield of castings improves the quality of wear-resistant castings. If there are defects in the surface or internal manufacturing of the hammerhead, such as shrinkage cavities, cracks, and through crystals, it will not only reduce the performance of the hammer but also cause the hammer to break. Therefore, reasonable casting and heat treatment processes must be established in the production of hammers. For example, for high-chromium cast iron hammers, vertical pouring and reasonable use of external cold iron should be adopted, and the casting temperature should be strictly controlled. This can make the hammer head have good solidification sequence and feeding conditions in casting, and then obtain dense internal structure. And weaken the phenomenon of coarse grains. The heat treatment process of the hammer determines the realization of its mechanical properties and the distribution of carbides. Since a certain amount of chromium and other alloying elements are contained in the composition of the hammerhead, how to make these alloying elements form a hard spot carbide is fully exerted, which is also a factor to be considered in the heat treatment process. In short, the establishment of a reasonable production process and strict quality inspection methods is a prerequisite for ensuring the performance of the hammer. |