Zinc impregnation system

Abstract

The invention belongs to the technical field of metal surface chemical treatment and metal material diffusion treatment, particularly relates to a zinc impregnation system, and aims to solve the technical problem of long invalid time of zinc impregnation treatment by using a zinc impregnation tank. The zinc impregnation system comprises a zinc impregnation tank, a through type heating furnace, a lifting mechanism, a longitudinal moving mechanism and a zinc impregnation tank rotation driving mechanism. Through lifting and longitudinal movement of the lifting mechanism and the longitudinal moving mechanism, the zinc impregnation tank is driven to enter and exit from the through type heating furnace and is placed on a carrier roller set in the zinc impregnation tank rotation driving mechanism, heating and constant-temperature zinc impregnation work is completed, meanwhile, the zinc impregnation tank can be driven to rotate through rotation of carrier rollers, and the advantages of high zinc impregnation quality and the like caused by autorotation are kept.

Description

technical field [0001] The invention belongs to the technical field of metal surface chemical treatment and metal material diffusion treatment, and in particular relates to a zinc sherardizing system. Background technique [0002] Powder zinc sherardizing technology uses the principle of diffusion of metal atoms in a hot state to make zinc powder contact with the metal workpiece below the melting point, thereby forming a zinc-iron alloy protective layer on the surface of the metal workpiece to prevent atmospheric corrosion. method. When working, mix the metal workpiece, zinc powder, quartz sand and some penetration aids and other materials together in a sealed container, heat at a predetermined process temperature and keep it warm for a certain period of time, so that zinc atoms can penetrate from the surface of the metal workpiece to the inside, and at the same time The iron atoms diffuse from the inside to the outside to form a uniform layer of zinc-iron compound on the s...

AI Technical Summary

Problems solved by technology

[0004] In the existing zinc sherardizing method, since the filling and sealing operation of the furnace is required before the zinc shedding, and the furnace needs to be cooled and unsealed after the treatment, the ineffective time of the zinc shedding treatment is long, and a large amount of heat energy is lost in the process of cooling down and reheating. The heating time of the zinc process is about 2-3 hours in the process of reaching the predetermined temperature. Frequent heating and cooling not only waste a lot of heat energy, but also may cause environmental pollution, which does not conform to the environmental protection trend of energy saving and emission reduction. Due to the processing, the temperature control and processing time of each furnace product cannot be uniform. In addition, from the perspective of product quality assurance, there may be errors in the temperature control temperature and holding time of each time, which will lead to inconsistency in product quality, thus making product quality difficult. Guaranteed uniformity

Images