Self-lubricating glass puncher pin and manufacturing method thereof

Abstract

The invention discloses a self-lubricating glass puncher pin which comprises a base body, a surface reinforcing welding layer and a self-lubricating layer which are sequentially arranged. The base body is made of vermicular graphite cast iron, the surface reinforcing welding layer is made of a metal-based material prepared from self-fluxing alloy powder, and the surface reinforcing welding layer is welded on the base body in a sprayed mode through a powder micro-arc plasma spray-welding technology. The self-lubricating layer is made of a mixture of a solid lubricating phase, a bonding phase and a hard phase, and the self-lubricating layer forms a covering layer on the surface reinforcing welding layer through a thermal spraying method. According to the self-lubricating glass puncher pin provided by the invention, the life of the glass puncher pin is prolonged, and thus the purpose of improvement of the precision and surface quality of a workpiece is achieved.

Description

technical field [0001] The invention relates to the technical field of glass molds, in particular to a self-lubricating glass punch and a manufacturing method thereof. Background technique [0002] With the continuous development of the glass industry, the quality requirements of glass products are also getting higher and higher. However, many complex physical, chemical and mechanical processes will occur in the glass forming process, so the requirements for mold materials are becoming more and more extensive. The mold material should have the following main properties: good thermal conductivity, small linear expansion coefficient, heat resistance, wear resistance, dense and uniform structure, etc. In fact, so far there is no homogeneous metal that meets these performance requirements at the same time. According to the service conditions and failure analysis of glass molds and actual production requirements, the requirements for mold materials are mainly thermal shock resi...

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Problems solved by technology

[0004] In addition, the glass punch has a cooling water cooling system. This system has a cooling water pipe, and the cooling water pipe will cause a series of problems such as water pipe rupture, resulting in safety accidents or damage to equipment, and the safety performance is relatively low.

At the same time, under the action of the cooling water pipe and the long-term alternating temperature of cold and heat, the inside of the glass punch is prone to cold and heat stress, which causes chapping and peeling on the surface of the glass punch, which affects the precision and surface quality of the glass product and reduces the The life of the glass punch is shortened, the frequency of replacing the glass punch is increased, and the production cost is increased

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