Atmosphere controlled quenching device for magnetically buffering fall of furnace body

Abstract

The invention discloses an atmosphere controlled quenching device for magnetically buffering fall of a furnace body, and belongs to the technical field of metallurgical equipment. A vertical guide rail is arranged in a case, a guide shoe 11 capable of sliding on the vertical guide rail is arranged on three groups of fixed supporting plates on the vertical guide rail, and a cooling chamber and thefurnace body connected with the cooling chamber are fixed in two cavities formed among the three groups of fixed supporting plates from top to bottom respectively; fixed brackets are arranged at the upper end and the lower end of the cooling chamber; the furnace body and the water-cooled cooling chamber connected together are connected with a traction steel wire of a tractor used for guiding the device to move upwards and arranged at the top of equipment; and a magnet A is arranged at the bottom of the furnace body. A magnet B for generating a repulsive force for retarding free fall of the furnace body and the cooling chamber together with the magnet A is arranged relatively on the same pole as the magnet A at the bottom of the case. By adopting natural fall of the furnace body and the water-cooled cooling chamber and shock absorption stop of the permanent magnets, the atmosphere controlled quenching device has low investment, is easily implemented, and has high quenching speed.

Description

technical field [0001] The invention relates to an atmosphere control quenching device, which achieves the purpose of quenching through the rapid fall of the furnace body and the water-cooled cooling chamber, and the relative rise of the sample into the water-cooled cooling chamber, and uses a permanent magnet to achieve the stop effect, belonging to the technical field of metallurgical equipment. Background technique [0002] The quenching process is an important research method in the fields of materials and metallurgy. The traditional quenching method is to cut the hanging wire so that the sample falls away from the high-temperature process. Generally, there is quenching agent water or liquid nitrogen in the lower part. Due to the process of cutting the hanging wire and the action of the quenching agent, such a research method cannot meet the requirements for the atmosphere-sensitive materials. Using a quenching chamber with an atmosphere is a solution to this problem. ...

AI Technical Summary

Problems solved by technology

But regardless of hydraulic or pneumatic, the investment is relatively large

Especially for samples that are rapidly quenched and sensitive to vibration during quenching, it is difficult to achieve

For the test of quenching to form an equiaxed crystal structure, the quenching cooling rate is slow, which will lead to a temperature gradient from the outside to the inside of the sample, and the intergrowth of dendrites and equiaxed crystals will be observed in the sample, which cannot meet the requirements

For the study of the growth mechanism of the crystal surface with different local concentrations, the vibration of the quenching process will cause the flow of the liquid phase on the crystal surface, resulting in errors in the study.

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