JPS5794577A - Zinc type surface treated steel material of superior corrosion resistance - Google Patents
Zinc type surface treated steel material of superior corrosion resistanceInfo
- Publication number
- JPS5794577A JPS5794577A JP17174280A JP17174280A JPS5794577A JP S5794577 A JPS5794577 A JP S5794577A JP 17174280 A JP17174280 A JP 17174280A JP 17174280 A JP17174280 A JP 17174280A JP S5794577 A JPS5794577 A JP S5794577A
- Authority
- JP
- Japan
- Prior art keywords
- built
- quantities
- steel material
- layer
- limit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/07—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
- C23C22/08—Orthophosphates
Abstract
PURPOSE:To obtain a zinc type surface treated steel material of superior corrosion resistance in an atmospheric corrosive environment accelerated by chlorine ions by applying phosphating further to the surface of various plated steel materials contg. zinc. CONSTITUTION:A steel material having the surface layers wherein the lower layer is coating layer of 2-200g/m<2> built-up quantities consisting of 20-95% Zn, and the balance >=1 kind of metals other than Zn, their compounds and Zn compounds, and the upper layer is a coating layer of 0.05-8g/m<2> built-up quantities contg. >=60% phosphate. If the Zn in the lower layer is below 20%, protective effect is insufficient, and above 95%, the protective film is unstable. If the built-up quantities of the lower layer are below the lower limit, the surface cannot be fully coated, and above the upper limit, workability is poor and the film is liable to peel. Next, the phosphate stabilizes zinc hydroxide films but if it is below 60%, the effect is insufficient. If the built-up quantities of the upper layer are below the lower limit, the surface cannot be fully coated and the upper limit is the limit of ordinary industrial methods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17174280A JPS5794577A (en) | 1980-12-05 | 1980-12-05 | Zinc type surface treated steel material of superior corrosion resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17174280A JPS5794577A (en) | 1980-12-05 | 1980-12-05 | Zinc type surface treated steel material of superior corrosion resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5794577A true JPS5794577A (en) | 1982-06-12 |
Family
ID=15928838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17174280A Pending JPS5794577A (en) | 1980-12-05 | 1980-12-05 | Zinc type surface treated steel material of superior corrosion resistance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5794577A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59129781A (en) * | 1983-01-13 | 1984-07-26 | Sumitomo Metal Ind Ltd | Plated steel material with superior corrosion resistance |
| JPS59129785A (en) * | 1983-01-13 | 1984-07-26 | Sumitomo Metal Ind Ltd | Cold rolled steel sheet with superior suitability to phosphating and manufacture |
| JPS59129784A (en) * | 1983-01-13 | 1984-07-26 | Sumitomo Metal Ind Ltd | Cold-rolled steel sheet with superior suitability to phosphating and manufacture |
-
1980
- 1980-12-05 JP JP17174280A patent/JPS5794577A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59129781A (en) * | 1983-01-13 | 1984-07-26 | Sumitomo Metal Ind Ltd | Plated steel material with superior corrosion resistance |
| JPS59129785A (en) * | 1983-01-13 | 1984-07-26 | Sumitomo Metal Ind Ltd | Cold rolled steel sheet with superior suitability to phosphating and manufacture |
| JPS59129784A (en) * | 1983-01-13 | 1984-07-26 | Sumitomo Metal Ind Ltd | Cold-rolled steel sheet with superior suitability to phosphating and manufacture |
| JPH0429742B2 (en) * | 1983-01-13 | 1992-05-19 |
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