Heat treatment process of hollow forging and a kind of quenching equipment

Abstract

The invention provides a quenching device, comprising: a base, a first outer ring horizontal connecting pipe, a first supporting inner pipe, a ring-shaped support platform, a first supporting outer pipe, an annular supporting block, a first connecting outer pipe, a first The outer spray pipe, the first outer pipe guide rail, the inner pipe guide rail, the first inner spray pipe, the first connecting inner pipe, the guide rail inner support frame, the annular inner water distribution ring, the inner spray support, the water tank, the annular outer water distribution ring and The first inner ring connects the pipes horizontally. The present application also provides a heat treatment process for the hollow forging by using the above-mentioned quenching equipment. In the heat treatment process provided by this application, the inner and outer spray pipes spray cooling water on the inner and outer surfaces of the forging respectively; the inner and outer spray pipes rotate around the forging at a uniform speed under the push of the reaction force of the sprayed water at the same time, so that the inside and outside of the forging are The outer surface is cooled evenly and rapidly. The quenching process improves the mechanical properties and yield of the finished forging, and also avoids the use of other equipment to generate rotating devices and power, thereby improving production efficiency.

Description

technical field [0001] The invention relates to a heat treatment process of a metal piece, in particular to a heat treatment process of a hollow forging and a quenching device. Background technique [0002] With the rapid development of my country's economic construction, large forgings of various sizes and shapes are more and more widely used in various fields of industrial production; and the increase in demand for forgings and the improvement of forging quality requirements drive Improvement of quenching and tempering heat treatment process of forgings and innovation of equipment used. [0003] The traditional quenching and tempering heat treatment process for large forgings is an immersion quenching heat treatment process, which is to vertically immerse the forgings with a high temperature of about 700 ° C or above in the reservoir, and transfer the heat of the forgings to the water through the heat exchange on the surface of the forgings. The circulating water takes awa...

AI Technical Summary

Problems solved by technology

It can be seen that the commonly used immersion heat treatment process is prone to defects in product quality, and the cooling time is long

For large hollow forgings, the above problems are more serious, and there is also the problem of uneven properties of the inner and outer surfaces of the forgings.

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