CN105063590A - Locking nut surface anticorrosion process - Google Patents
Locking nut surface anticorrosion process Download PDFInfo
- Publication number
- CN105063590A CN105063590A CN201510181742.3A CN201510181742A CN105063590A CN 105063590 A CN105063590 A CN 105063590A CN 201510181742 A CN201510181742 A CN 201510181742A CN 105063590 A CN105063590 A CN 105063590A
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- China
- Prior art keywords
- phosphorization
- locking nut
- nut surface
- surface anticorrosion
- acidity
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- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
The invention relates to a locking nut surface anticorrosion process, wherein a nut after water washing is subjected to phosphorization, the total acidity of the phosphorization solution is 35-100 Pt, the free acidity (FA) is 2-8, the temperature is controlled at 35-80 DEG C, the phosphorization time is 5-25 min, and the component in the formula of the phosphorization solution comprise 8-12 g/L of Zn<2+>, 12-18 g/L of Ca<2+>, 10-14 g/L of PO<4->, 38-45 g/L of NO<3->, 0.05-0.1 g/L of KIO3, 0.01-0.05 g/L of CuSO3, and 2-5 g/L of an auxiliary blackening agent. According to the precise locking nut surface black phosphorization technology of the present invention, the developed black phosphorization has characteristics of high surface rust resistance and high corrosion resistance, the phosphorization film has high hardness and high stability, and the product has characteristics of good surface gloss, mellow and rich property, and good appearance.
Description
Technical field
The invention belongs to anti-corrosion of metal technology field, be specifically related to set nut surface anticorrosion technique.
Background technology
Accurate set nut uses in all kinds of precision equipment, and affect by environment for use, the surface of nut is antirust to have higher requirements.The general anti-corrosive technology adopting nut surface black electrophore tic paint at present, its product rustless property is pretty good, and product surface good luster, more mellow and fuller abundant, product are compared good.But electrocoating paint is not shock-resistant, nut some recoverable deformations in use can cause the enamelled coating on nut surface to peel off, therefore many need the occasion of severe dismounting nut not ensure exterior quality and can not get application.
Summary of the invention
The object of the present invention is to provide a kind of set nut surface anticorrosion technique.
Technical scheme of the present invention is: a kind of set nut surface anticorrosion technique, is characterized in that: the nut after washing carries out phosphatization, and the total acidity of Phosphating Solution is 35-100Pt, and free acidity is (FA) 2-8; Temperature controls at 35-80 degree, phosphating time: 5-25min; The formula of described Phosphating Solution is: Zn
2+: 8 ~ 12g/L, Ca
2+: 12 ~ 18g/L, PO4-:10 ~ 14g/L, NO3-:38 ~ 45g/L, KIO3:0.05 ~ 0.1g/L, CuSO3:0.01 ~ 0.05g/L, helps black dose: 2-5g/L.
As preferably: the total acidity of Phosphating Solution is 50-80Pt, and free acidity is (FA) 4-6, and temperature controls at 40-60 degree, phosphating time: 10-15min; The formula of described Phosphating Solution is: Zn
2+: 10 ~ 12g/L, Ca
2+: 16 ~ 17g/L, PO4-:12 ~ 13g/L, NO3-:38 ~ 40g/L, KIO3:0.05 ~ 0.08g/L, CuSO3:0.01 ~ 0.02g/L, helps black dose: 3 ~ 4g/L.
beneficial effect:accurate set nut surface black phosphorization technology provided by the invention.The black phosphating of research and development has antirust higher, the feature that corrosion stability is high in surface, and phosphatize phosphate coat has higher hardness and stability; And product surface good luster, more mellow and fuller abundant, product are compared good.
Embodiment
Below in conjunction with specific embodiment, the present invention will be further described.
embodiment 1
A kind of set nut surface anticorrosion technique, the nut after washing carries out phosphatization, and the total acidity of Phosphating Solution is 35-100Pt, and free acidity is (FA) 2-8; Temperature controls at 35-80 degree, phosphating time: 5-25min; The formula of described Phosphating Solution is: Zn
2+: 8 ~ 12g/L, Ca
2+: 12 ~ 18g/L, PO4-:10 ~ 14g/L, NO3-:38 ~ 45g/L, KIO3:0.05 ~ 0.1g/L, CuSO3:0.01 ~ 0.05g/L, helps black dose: 2-5g/L.
embodiment 2
A kind of set nut surface anticorrosion technique, the nut after washing carries out phosphatization, and the total acidity of Phosphating Solution is 50-80Pt, and free acidity is (FA) 4-6, and temperature controls at 40-60 degree, phosphating time: 10-15min; The formula of described Phosphating Solution is: Zn
2+: 10 ~ 12g/L, Ca
2+: 16 ~ 17g/L, PO4-:12 ~ 13g/L, NO3-:38 ~ 40g/L, KIO3:0.05 ~ 0.08g/L, CuSO3:0.01 ~ 0.02g/L, helps black dose: 3 ~ 4g/L.
Claims (2)
1. a set nut surface anticorrosion technique, is characterized in that: the nut after washing carries out phosphatization, and the total acidity of Phosphating Solution is 35-100Pt, and free acidity is (FA) 2-8; Temperature controls at 35-80 degree, phosphating time: 5-25min; The formula of described Phosphating Solution is: Zn
2+: 8 ~ 12g/L, Ca
2+: 12 ~ 18g/L, PO4-:10 ~ 14g/L, NO3-:38 ~ 45g/L, KIO3:0.05 ~ 0.1g/L, CuSO3:0.01 ~ 0.05g/L, helps black dose: 2-5g/L.
2. a kind of set nut surface anticorrosion technique according to claim 1, it is characterized in that: the total acidity of Phosphating Solution is 50-80Pt, free acidity is (FA) 4-6, and temperature controls at 40-60 degree, phosphating time: 10-15min; The formula of described Phosphating Solution is: Zn
2+: 10 ~ 12g/L, Ca
2+: 16 ~ 17g/L, PO4-:12 ~ 13g/L, NO3-:38 ~ 40g/L, KIO3:0.05 ~ 0.08g/L, CuSO3:0.01 ~ 0.02g/L, helps black dose: 3 ~ 4g/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510181742.3A CN105063590A (en) | 2015-04-17 | 2015-04-17 | Locking nut surface anticorrosion process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510181742.3A CN105063590A (en) | 2015-04-17 | 2015-04-17 | Locking nut surface anticorrosion process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105063590A true CN105063590A (en) | 2015-11-18 |
Family
ID=54493087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510181742.3A Pending CN105063590A (en) | 2015-04-17 | 2015-04-17 | Locking nut surface anticorrosion process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105063590A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008133540A (en) * | 2006-10-31 | 2008-06-12 | Jfe Steel Kk | Phosphate-treated galvanized steel sheet and method for producing the same |
| CN104250736A (en) * | 2013-06-26 | 2014-12-31 | 无锡洛社科技创业有限公司 | Steel plate low-temperature environmental-protection phosphatization liquid |
| CN104313557A (en) * | 2014-09-23 | 2015-01-28 | 安徽洪森机械制造有限公司 | Low temperature phosphating solution for cold drawn pipe |
| CN104404489A (en) * | 2014-12-12 | 2015-03-11 | 重庆跃进机械厂有限公司 | Zinc series phosphating solution for aluminum alloys |
-
2015
- 2015-04-17 CN CN201510181742.3A patent/CN105063590A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008133540A (en) * | 2006-10-31 | 2008-06-12 | Jfe Steel Kk | Phosphate-treated galvanized steel sheet and method for producing the same |
| CN104250736A (en) * | 2013-06-26 | 2014-12-31 | 无锡洛社科技创业有限公司 | Steel plate low-temperature environmental-protection phosphatization liquid |
| CN104313557A (en) * | 2014-09-23 | 2015-01-28 | 安徽洪森机械制造有限公司 | Low temperature phosphating solution for cold drawn pipe |
| CN104404489A (en) * | 2014-12-12 | 2015-03-11 | 重庆跃进机械厂有限公司 | Zinc series phosphating solution for aluminum alloys |
Non-Patent Citations (2)
| Title |
|---|
| 周谟银等: "《金属磷化技术》", 31 December 1999 * |
| 荆晓等: "《中学化学词典》", 30 April 1998 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information |
Address after: Tongzhou District Xingren Zhen Xu Zhuang Cun 226300 Jiangsu city of Nantong Province in 5 groups Applicant after: Jiangsu Ford machinery Polytron Technologies Inc Address before: Tongzhou District Xingren Zhen Xu Zhuang Cun 226300 Jiangsu city of Nantong Province in 5 groups Applicant before: SWIFT NANTONG PRECISION MACHINERY CO., LTD. |
|
| COR | Change of bibliographic data | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151118 |