Repair the cracks of the cemented carbide die in time to extend the service life

       

The application of internal crack repair technology to large and expensive cemented carbide molds will produce great economic benefits; in addition, after the parts are used for a period of time, there will generally be microscopic internal damage. At this time, internal crack repair heat treatment can be performed The crack repair technology within the service life of the components is greatly extended

The application of internal crack repair technology to large and expensive cemented carbide molds will produce great economic benefits; in addition, after the parts are used for a period of time, the internal microscopic damage will generally occur. At this time, internal crack repair heat treatment can be The technology of repairing cracks within the service life of components is an important basis for deriving smart materials.

Smart material refers to a new type of cemented carbide mold material that can accept and respond to information from the external environment and automatically change its state. One of the more important functions is self-healing. Self-healing after internal cracks are generated is an essential feature. An important research on the self-healing of internal cracks is biomimetic repair, which makes internal cracks have behavioral characteristics similar to life body wound healing. Almost all living things have the ability to repair damage.

When the organism is non-fatal damage, under appropriate environmental conditions, the cemented carbide mold repairs the damage through its own internal damage response, transportation, metabolism and other mechanisms. Once damage or cracks occur in inanimate materials, there is almost no repair phenomenon at room temperature. However, under high temperature conditions, crack repair and healing obviously have the characteristics of life body damage healing. The biomimetic study of internal crack repair is the study of the biomimetic phenomenon of inanimate materials. Through research, it is found that during and after repair, cracks appear similar to the phenomenon that occurs during and after healing of human skin wounds and fractures.