The service life of the Crate Mould refers to the number of parts that can be formed on the premise of ensuring the quality of the manufactured products. It includes repeatedly sharpening and replacing vulnerable parts until the main part of the crate mould is replaced with the total number of qualified parts formed.
Failure of crate mould can be divided into abnormal failure and normal failure. Abnormal failure means that the mould can no longer be used when it has not reached the recognized service life under a certain industrial level. Abnormal failure forms include plastic deformation, fracture, severe local wear, etc. Normal failure means that the crate mould cannot continue to be used after mass production because of slow plastic deformation or even wear and tear.
The number of qualified products produced before the normal failure of the crate mould is called the normal life of the mould, which is simply called the life of the mould. The number of qualified products produced before the first repair of the crate mould is called the first life span, and the number of qualified products produced after one repair to the next repair is called the repair life span. The service life of the crate mould is the sum of the first service life and each repair service life.
The service life of the crate mould is related to the type and structure of the mould, the choice of mould steel, reasonable mould design and maintenance. It is a comprehensive reflection of mould material performance, mould design and manufacturing level, mould heat treatment level, and usage and maintenance level within a certain period of time.
