CN101191222A - Method for increasing galvanized iron accessory corrosion resistance - Google Patents
Method for increasing galvanized iron accessory corrosion resistance Download PDFInfo
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- CN101191222A CN101191222A CN 200610129530 CN200610129530A CN101191222A CN 101191222 A CN101191222 A CN 101191222A CN 200610129530 CN200610129530 CN 200610129530 CN 200610129530 A CN200610129530 A CN 200610129530A CN 101191222 A CN101191222 A CN 101191222A
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- per liters
- zinc
- corrosion resistance
- chloride
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Abstract
The invention relates to a method for improving corrosion resistance of galvanized iron parts, wherein, normal grease and rust removal pretreatment is performed on the surface of the galvanized steel parts; plating solution composed of potassium chloride, zinc chloride, cobalt chloride hydrate, boric acids, surface active agents, benzylidene aceton and residual water is used for zinc-cobalt alloy electroplating; room-temperature passivation is performed on the parts in passivating liquid which consists of chromium trioxide, titanium chloride and residual water and contains hexavalent chromium ions; the parts after passivation are blow-dried. The invention has the advantages of strong corrosion resistance, simple technique and beautiful appearance.
Description
Technical field
The present invention relates to a kind of raising galvanized iron accessory corrosion resistance method.
Background technology
At present, the corrosion resistance of zinc-plated iron-steel elements Passivation Treatment, the passive film solidity to corrosion is poor, is unsuitable for the demanding product of solidity to corrosion and uses.Phosphatization can obtain than the high anti-corrosion surface with baking on zinc coating, but complex process, piece surface is not attractive in appearance.And produce and to contain heavy metal, zinc, nickel, brill, chrome waste water in a large number, cause environmental pollution.
Summary of the invention
The objective of the invention is to overcome above-mentioned defective, a kind of raising galvanized iron accessory corrosion resistance method is provided.
Technical scheme of the present invention is: a kind of raising galvanized iron accessory corrosion resistance method is characterized in that: the rust cleaning pre-treatment that degreases of zinc-plated iron-steel elements surface routine, zinc coating 8-9 micron; With Repone K 210 grams per liters, zinc chloride 70 grams per liters, cobalt chloride hydrate 8 grams per liters, boric acid 20 grams per liters, tensio-active agent 300 grams per liters, benzylideneacetone 20 grams per liters, all the other are electroplated for the water plating bath carries out the zinc cobalt-base alloy; Using chromic anhydride 3 grams per liters, titanium chloride 2 grams per liters, all the other are room temperature passivation in the passivating solution that contains 6 valency chromium ion solution of water 40 seconds, the part after passivation is finished dries up.
The present invention has the following advantages: anti-corrosion capability is strong, and technology is simple, surface aesthetic.
Embodiment
Embodiment: the rust cleaning pre-treatment that degreases of a kind of raising galvanized iron accessory corrosion resistance method, zinc-plated iron-steel elements surface routine, zinc coating 8-9 micron; With Repone K 210 grams per liters, zinc chloride 70 grams per liters, cobalt chloride hydrate 8 grams per liters, boric acid 20 grams per liters, tensio-active agent 300 grams per liters, benzylideneacetone 20 grams per liters, all the other are electroplated for the water plating bath carries out the zinc cobalt-base alloy; Using chromic anhydride 3 grams per liters, titanium chloride 2 grams per liters, all the other are room temperature passivation in the passivating solution that contains 6 valency chromium ion solution of water 40 seconds, the part after passivation is finished dries up.
Claims (1)
1. one kind is improved the galvanized iron accessory corrosion resistance method, it is characterized in that: the rust cleaning pre-treatment that degreases of zinc-plated iron-steel elements surface routine, zinc coating 8-9 micron; With Repone K 210 grams per liters, zinc chloride 70 grams per liters, cobalt chloride hydrate 8 grams per liters, boric acid 20 grams per liters, tensio-active agent 300 grams per liters, benzylideneacetone 20 grams per liters, all the other are electroplated for the water plating bath carries out the zinc cobalt-base alloy; Using chromic anhydride 3 grams per liters, titanium chloride 2 grams per liters, all the other are room temperature passivation in the passivating solution that contains 6 valency chromium ion solution of water 40 seconds, the part after passivation is finished dries up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610129530 CN101191222A (en) | 2006-11-23 | 2006-11-23 | Method for increasing galvanized iron accessory corrosion resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610129530 CN101191222A (en) | 2006-11-23 | 2006-11-23 | Method for increasing galvanized iron accessory corrosion resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101191222A true CN101191222A (en) | 2008-06-04 |
Family
ID=39486420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610129530 Withdrawn CN101191222A (en) | 2006-11-23 | 2006-11-23 | Method for increasing galvanized iron accessory corrosion resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101191222A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108754475A (en) * | 2018-05-28 | 2018-11-06 | 昆明理工大学 | A kind of environment-friendly type blue and white passivation solution and preparation method thereof |
| CN109385649A (en) * | 2018-12-24 | 2019-02-26 | 陕西航天时代导航设备有限公司 | A kind of crisp acid cyanideless electro-plating zinc technology method of low hydrogen |
-
2006
- 2006-11-23 CN CN 200610129530 patent/CN101191222A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108754475A (en) * | 2018-05-28 | 2018-11-06 | 昆明理工大学 | A kind of environment-friendly type blue and white passivation solution and preparation method thereof |
| CN109385649A (en) * | 2018-12-24 | 2019-02-26 | 陕西航天时代导航设备有限公司 | A kind of crisp acid cyanideless electro-plating zinc technology method of low hydrogen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |