CN103726039A - Steel pipe alramenting technology - Google Patents
Steel pipe alramenting technology Download PDFInfo
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- CN103726039A CN103726039A CN201310621455.0A CN201310621455A CN103726039A CN 103726039 A CN103726039 A CN 103726039A CN 201310621455 A CN201310621455 A CN 201310621455A CN 103726039 A CN103726039 A CN 103726039A
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- phosphating
- steel pipe
- phosphating solution
- alramenting
- technology
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Abstract
The invention discloses a steel pipe alramenting technology. In the phosphating process, the loading density of a steel pipe is 0.040-0.060 m<2>/L; a phosphating solution comprises zinc white of 100-100 g/L, zinc nitrate of 110-120 g/L and orthophosphoric acid of 80-90 g/L; the total acidity of the phosphating solution is 20-21 points, the free acidity of the phosphating solution is 5-6 points, the phosphating temperature is 80-85 DEG C, and the processing time is 30-35 minutes. Through the adoption of the steel pipe alramenting technology, the environmental pollution is reduced, the risk is low, and the operation is easy.
Description
Technical field
The present invention relates to steel tube surface phosphating process.
Background technology
The Phosphating Solution using in phosphating process is divided into zinc system, zinc calcium system, zinc-manganese system, manganese system etc., and phosphatize phosphate coat plays the lubricated use of antifriction in metal cold complete processing.The Phosphating Solution that tradition Zinc phosphating is used is formulated by ZnO, HNO3 and H3PO4, HNO3, and HNO3 belongs to high-risk Chemicals, and risk is very strong, very large to contamination.
Summary of the invention
The object of the present invention is to provide a kind of steel tube surface phosphating process, it reduces environmental pollution, and risk is low easy to operate.
For achieving the above object, technical scheme of the present invention is a kind of steel tube surface phosphating process of design, in the process of described phosphatization, the loading density of steel pipe is 0.040-0.060 square metre/liter, described Phosphating Solution is comprised of zinc oxide, the zinc nitrate of 110-120g/L and the ortho-phosphoric acid of 80-90g/L of 100-110g/L, described General Acidity in Phosphating Solution 20-21 point, Phosphating Solution free acidity 5-6 point, phosphatization temperature 80-85 ℃, treatment time 30-35 minute.
Advantage of the present invention and beneficial effect are: a kind of steel tube surface phosphating process is provided, and it reduces environmental pollution, and risk is low easy to operate.
Embodiment
Below in conjunction with embodiment, the specific embodiment of the present invention is further described.Following examples are only for technical scheme of the present invention is more clearly described, and can not limit the scope of the invention with this.
The concrete technical scheme of implementing of the present invention is:
Embodiment 1
A kind of steel tube surface phosphating process, in the process of described phosphatization, the loading density of steel pipe is 0.040 square metre/liter, described Phosphating Solution is comprised of zinc oxide, the zinc nitrate of 110g/L and the ortho-phosphoric acid of 80g/L of 100g/L, described General Acidity in Phosphating Solution 20 points, Phosphating Solution free acidity 5 points, 80 ℃ of phosphatization temperatures, 30 minutes treatment times.
Embodiment 2
A kind of steel tube surface phosphating process, in the process of described phosphatization, the loading density of steel pipe is 0.060 square metre/liter, described Phosphating Solution is comprised of zinc oxide, the zinc nitrate of 120g/L and the ortho-phosphoric acid of 90g/L of 110g/L, described General Acidity in Phosphating Solution 21 points, Phosphating Solution free acidity 6 points, 85 ℃ of phosphatization temperatures, 35 minutes treatment times.
Embodiment 3
A kind of steel tube surface phosphating process, in the process of described phosphatization, the loading density of steel pipe is 0.050 square metre/liter, described Phosphating Solution is comprised of zinc oxide, the zinc nitrate of 113g/L and the ortho-phosphoric acid of 86g/L of 108g/L, described General Acidity in Phosphating Solution 20.5 points, Phosphating Solution free acidity 5.5 points, 83 ℃ of phosphatization temperatures, 34 minutes treatment times.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (1)
1. steel tube surface phosphating process, it is characterized in that, in the process of described phosphatization, the loading density of steel pipe is 0.040-0.060 square metre/liter, described Phosphating Solution is comprised of zinc oxide, the zinc nitrate of 110-120g/L and the ortho-phosphoric acid of 80-90g/L of 100-110g/L, described General Acidity in Phosphating Solution 20-21 point, Phosphating Solution free acidity 5-6 point, phosphatization temperature 80-85 ℃, treatment time 30-35 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310621455.0A CN103726039A (en) | 2013-11-30 | 2013-11-30 | Steel pipe alramenting technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310621455.0A CN103726039A (en) | 2013-11-30 | 2013-11-30 | Steel pipe alramenting technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103726039A true CN103726039A (en) | 2014-04-16 |
Family
ID=50450327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310621455.0A Pending CN103726039A (en) | 2013-11-30 | 2013-11-30 | Steel pipe alramenting technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103726039A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105839091A (en) * | 2016-05-26 | 2016-08-10 | 柳州市强威锻造厂 | Phosphating solution with phosphating and saponifying formula |
| CN105839090A (en) * | 2016-05-26 | 2016-08-10 | 柳州市强威锻造厂 | Phosphorization standby liquid adopting phosphorization-saponification formula |
| CN113881934A (en) * | 2021-11-04 | 2022-01-04 | 湖南金化科技集团有限公司 | Zinc-based phosphating solution with less slag and ash |
-
2013
- 2013-11-30 CN CN201310621455.0A patent/CN103726039A/en active Pending
Non-Patent Citations (4)
| Title |
|---|
| 吴国梁 等: "无缝钢管新工艺试验", 《钢管》 * |
| 左言林: "磷化液总酸度的研究", 《金属制品》 * |
| 米德伟 等: "钢铁磷化", 《首届国际(西安)涂料、涂装、表面工程高层论坛论文集(第二分册 涂装前处理)》 * |
| 胥学春 等: "钢管磷化工艺的改进", 《钢管》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105839091A (en) * | 2016-05-26 | 2016-08-10 | 柳州市强威锻造厂 | Phosphating solution with phosphating and saponifying formula |
| CN105839090A (en) * | 2016-05-26 | 2016-08-10 | 柳州市强威锻造厂 | Phosphorization standby liquid adopting phosphorization-saponification formula |
| CN113881934A (en) * | 2021-11-04 | 2022-01-04 | 湖南金化科技集团有限公司 | Zinc-based phosphating solution with less slag and ash |
| CN113881934B (en) * | 2021-11-04 | 2023-04-21 | 湖南金化科技集团有限公司 | Zinc phosphating solution with less slag and ash |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140416 |