Metal product surface passivation device

Abstract

The invention relates to the technical field of valves, and discloses a metal product surface passivation device. The metal product surface passivation device comprises a machine body, a decontamination barrel is fixedly mounted at the top of the left side of the machine body, a conveying channel is fixedly mounted on the left side of the decontamination barrel, a conveying pipeline is fixedly mounted on the right side of the decontamination barrel, and a passivation barrel is fixedly mounted on the right side of the machine body. A rotating mechanism is detachably mounted in an inner cavity of the passivation barrel. According to the metal product surface passivation device, through an elastic rod and third teeth, the left side of the elastic rod moves downwards through the falling gravity of a metal block, the elastic rod drives an inner ring to rotate anticlockwise through a connecting rope, second teeth and the third teeth are matched to drive a rotating column to rotate, a disc at the bottom of the rotating column rotates at the same time, in this way, when each metal block falls, the disc at the bottom of the inner cavity of the passivation barrel is driven to rotate, so that mutual accumulation of the metal blocks is avoided, the contact area between the metal blocks and passivation liquid is increased, and the passivation rate of the metal blocks is increased.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a surface passivation device for metal products. Background technique [0002] Passivation refers to the process in which metal is oxidized by strong oxidant or electrochemical method to make the surface into an inactive state, that is, passivation, so that the metal surface is transformed into a state that is not easy to be oxidized, so as to delay the corrosion rate of the metal. In real life, due to the environment in which metal products are used, most metal products are prone to oxidation reactions in daily life, such as rust and corrosion, which accelerate the loss of metal products and reduce the service life of metal products. [0003] In order to improve the service life of metal products, after continuous research, it has been found that after the metal surface is treated with an oxidizing medium, the corrosion rate of the metal is significantly reduced. Passivation tre...

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a metal product surface passivation device, which has the advantages of performing a decontamination step before passivation, pouring them into the passivation bucket one by one and avoiding accumulation during the passivation process, which solves the problem of general The passivation reaction is due to the oil pollution on the surface of the metal block and a large amount of simultaneous dumping, which makes the metal blocks overlap and accumulate, resulting in an incomplete passivation reaction.

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