Zinc-based heavy-duty protecting technology for steel component

A steel component, heavy-duty anti-corrosion technology, applied in the direction of metal material coating process, superimposed layer plating, device for coating liquid on the surface, etc., can solve the problems of corrosion spreading, causing harm, affecting decorative effect, coating damage, etc. , to achieve the effects of outstanding protection effect, reduced workload and reduced cost

Inactive Publication Date: 2008-05-14
XUZHOU ZENITH COATING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Due to the unavoidable contact or even collision of steel components with other objects during storage, transportation, installation or use after painting, it is very easy to cause damage to the coating on edges, corners and welds, forming corros...

Method used

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Examples

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Embodiment Construction

[0025] Further illustrate the scheme and effect of the present invention below in conjunction with embodiment.

[0026] Use a sand mill to grind the corners of the expressway corrugated beam and plate components, and grind the right angles into obtuse angles or arcs;

[0027] The above-mentioned workpiece is shot blasted by a shot blasting machine. The number of blasting heads is 8, the line speed is 1m / s, and the abrasive is 1-4mm. Blow off the dust and impurities on the surface;

[0028] Degrease the above workpiece in a bath solution containing 1-5% alkaline degreasing agent at 60-70°C for 1-5 minutes, after two water washes, put it into a mixed acid solution containing 5-10% hydrochloric acid and sulfuric acid, and soak for 5 minutes. -20min rust removal, then two water washes, then surface adjustment in the bath solution containing 1-2% surface conditioner for 0.5-5min, and then enter the phosphating pool for phosphating treatment, the best parameter of the phosphating p...

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PUM

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Abstract

The invention relates to the coatings protection technique of steel components, in particular to the heavy-duty anti-corrosion protection technique for the zinc base of steel components, which pertains to the technical field of metal coatings protection. The technique flow is that: burnishing of component corners, surface mechanical chipping, phosphorization, corners mechanical chipping, corners thermal spraying, spraying bottom powder, gelatinization semi-solidified, spraying face powder, solidification and cooling and packing. The invention has the advantages that the edges, corners, welding lines and the surrounding parts thereof of the steel components are sprayed with metal after cleaning; compared with spraying whole metal components surface, the workload is greatly lightened and the cost is obviously lowered; the protection technique employs phosphate coating, hot sprayed metal coating, zinc based powder coating, surface finishing or protection powder coating to form multilayer compound coating. The invention has clear operation technique and remarkable protection effect and eliminates the pronounced pollution problem caused by galvanization processing.

Description

technical field [0001] The invention relates to coating protection technology for steel components, in particular to a zinc-based heavy-duty anti-corrosion protection technology for steel components, and belongs to the technical field of metal coating protection. Background technique [0002] Due to long-term exposure to the atmosphere, steel components undergo chemical and electrochemical reactions due to climate change, sun and rain, moisture contained in the atmosphere, and corrosive media, and the surface is rapidly oxidized, resulting in material performance degradation and even failure. [0003] Coating protection is a cost-effective technical method that is often adopted. There are two types of non-metallic coatings and metallic coatings. Non-metallic coatings include paint coatings, powder coatings, and inorganic material covering coatings. The shielding method is mainly used to block the contact between the corrosive medium and the steel component base material to ...

Claims

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Application Information

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IPC IPC(8): C23F15/00C23C28/00B24B1/00C23C22/07C23C4/06B05D7/24B05D3/00C23C4/129C23C4/131
Inventor 陆东方
Owner XUZHOU ZENITH COATING
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