A Method for Improving the Corrosion Resistance of Moving Iron Parts

Abstract

The invention discloses a method for improving the corrosion resistance of a moving iron part. The method is concretely characterized in that a protection material is deposited on the surface of the moving iron part through a vacuum vapor plating technology to form a protection layer, wherein the deposition speed of the protection material on the surface of the moving iron part first increases and then reduces. Compared with the prior art, the method disclosed in the invention has the following advantages: the compactness distribution of the protection material on the surface of the moving iron part is adjusted in order to finally realize the compact-loose-compact layered distribution of the protection layer, and the above distribution structure plays a great role in anticorrosion; the compact-loose-compact protection layer structure reduces the destroy caused by internal stress of the part, has a good buffering effect on outside force, and has good scraping resistance; and the structure prevents the protection layer from shedding, and has enough beauty sense.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of moving irons, in particular to a method for improving the corrosion resistance of moving iron parts. Background technique [0002] In the traditional moving iron receiver, its components such as iron box and box cover are made of stainless steel or iron-nickel alloy, and are heat-treated during the production process, so the hardness of the box cover and iron box will decrease, and it will easily appear during the production process. Scratches, low surface gloss, etc.; at the same time, the acid and alkali resistance and corrosion resistance of moving iron parts are not high, and the service life is short. More importantly, the current moving iron parts also have the following defects: [0003] (1) After heat treatment, the material itself is soft and easy to scratch, resulting in an unsightly appearance; [0004] (2) There is no protective material on the surface, resulting in...

AI Technical Summary

Problems solved by technology

[0003] (1) After heat treatment, the material itself is soft and easy to scratch, resulting in an unsightly appearance;

[0004] (2) There is no protective material on the surface, resulting in low corrosion resistance of the iron box and lid;

[0005] (3) The color of the receiver is only stainless steel, and the gloss is not high, and the appearance is not beautiful enough

[0006] Although many existing technologies disclose the technical solutions of using vacuum evaporation to coat the protective film on the substrate, they all achieve the deposition of protective materials under the condition of constant temperature and constant speed, and the uniformity of the protective film is one of the goals pursued by the technical solutions.

However, the protective layer formed by these technologies cannot overcome the defects in the appearance of the current moving iron parts.

[0007] After further searching, it is known that the prior art CN1786256A discloses a method of evaporating a silicon dioxide protective film. Although it discloses a technical solution for the deposition of protective materials under variable speed conditions, its speed increases with the elapse of deposition time. Then the compactness of the final protective layer is weakened in turn, and the loose deposited protective layer will inevitably negatively affect the appearance and aesthetics, and more importantly, lead to a significant reduction in corrosion resistance, anti-shedding, and scratch resistance.

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