Heat diffusion treatment equipment capable of precision temperature control and having long service life

Abstract

The invention is a kind of thermal diffusion treating equipment. It can control temperature precisely and has long service life. It includes a heat treating stove, a crucible and a thermocouple. The heat treating stove adopts the couple thermocouple controlling temperature well external-heat crucible thermal diffusion treating stove. It includes a well external-heat crucible TD salt bath cladding stove (11) and a well warming-up backfire stove. The couple thermocouple and the controlling tank (16) are connected. One is the temperature controlling thermocouple used to measure the temperature of the outer surface of the crucible. It inserts into the hearth through the flank of the well heating camp stove. The other is the center thermocouple used to measure the salt bath temperature in the crucible. It inserts into the salt bath in the crucible through the stove cover (1).The invention can control temperature precisely and treat big and small workpieces. The service life is long and the application is wide. It adapts to popularize and apply.

Description

technical field [0001] The invention relates to the field of equipment used for thermal diffusion treatment (TD treatment), in particular to thermal diffusion treatment equipment with precise temperature control and long service life. Background technique [0002] Although TD treatment has been popularized and applied abroad, there are some technical difficulties in our country: such as salt bath aging and activation, workpiece deformation, metal materials and equipment for salt bath furnaces, etc. It must be difficult. So far, it is still basically in the stage of laboratory development. Moreover, the equipment used in the laboratory generally uses an externally heated crucible boiler, which has the following problems: [0003] (1) Traditional crucible boilers are not equipped with side thermocouples, and only rely on the central thermocouple to measure temperature. Uneven; [0004] (2) The crucible is made of 1Cr18Ni9Ti, which is easily corroded for long-term use; [0...

AI Technical Summary

Problems solved by technology

[0003] (1) Traditional crucible boilers are not equipped with side thermocouples, and only rely on the central thermocouple to measure temperature. Uneven;

[0004] (2) The crucible is made of 1Cr18Ni9Ti, which is easily corroded for long-term use;

[0005] (3) The thermocouple is severely corroded, and it will be corroded and scrapped after 3 or 4 furnaces

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