High-speed steel convectional cooling annealing pipe

Abstract

The invention discloses a high-speed steel convectional cooling annealing pipe. The high-speed steel convectional cooling annealing pipe is characterized in that the high-speed steel convectional cooling annealing pipe comprises an annealing pipe body; a combustion chamber and a water bath trough are sequentially arranged on the annealing body in the high-speed steel movement direction; a baffle is arranged in the center of the water bath trough and divides the water bath trough into two sub water bath troughs which do not communicate with each other; the two ends of the water bath trough are each provided with a water inlet pipe; the ends, close to the baffle, of the sub water bath troughs are each provided with a water outlet pipe; each sub water bath trough is provided with a circulating pump, and relatively flowing cooling water flow is formed in the water bath trough through the circulating pumps; water in the water bath trough spills over the annealing pipe body; a plurality of gas holes are formed in the two side faces, in the horizontal direction, of a pipe section, arranged in the combustion chamber, of the annealing pipe body; a fresh air inlet is formed in the lower end face of the combustion chamber; a smoke outlet is formed in the upper end face of the combustion chamber; a flexible sealing block is arranged at the high-speed steel outlet end of the annealing pipe body; and a hydrogen inlet is formed in position, at one side of the water bath trough, of the annealing pipe body.

Description

Technical field [0001] The invention relates to the field of metal annealing, in particular to an annealing tube for high-speed steel. Background technique [0002] Annealing is a metal heat treatment process, which refers to slowly heating the metal to a certain temperature, keeping it for a sufficient time, and then cooling it at an appropriate speed. The purpose is to reduce the hardness, improve the machinability; eliminate residual stress, stabilize the size, reduce deformation and crack tendency; refine the crystal grain, adjust the structure, and eliminate the structure defect. To be precise, annealing is a heat treatment process for materials, including metallic materials and non-metallic materials. Moreover, the annealing purpose of new materials is similar to that of traditional metal annealing. [0003] Annealing is a very commonly used experimental method for sample preparation and sample processing in scientific research and production. For some samples that can be a...

AI Technical Summary

Problems solved by technology

The current problem with this method of sealing tubes is that the sealed quartz glass tubes are disposable, and the tubes must be broken after the sample is annealed, resulting in high costs, and the sealing of the tubes requires a special vacuum system and Quartz or glass tube heating and softening equipment, it is also very inconvenient to seal the tube

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