CN107338430A - A kind of phosphating solution and phosphating process - Google Patents
A kind of phosphating solution and phosphating process Download PDFInfo
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- CN107338430A CN107338430A CN201710604210.5A CN201710604210A CN107338430A CN 107338430 A CN107338430 A CN 107338430A CN 201710604210 A CN201710604210 A CN 201710604210A CN 107338430 A CN107338430 A CN 107338430A
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- Prior art keywords
- workpiece
- phosphating
- phosphatization
- pickling
- oil
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- 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
- C23C22/40—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 molybdates, tungstates or vanadates
- C23C22/44—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 molybdates, tungstates or vanadates containing also fluorides or complex fluorides
-
- 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
- C23C22/73—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 characterised by the process
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- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
The invention provides a kind of phosphating solution and phosphating process, the composition of phosphating solution includes：96~98g/L of zinc dihydrogen phosphate, 7~8g/L of ammonium molybdate, 8~9g/L of magnesium sulfate, 25~26g/L of calcium nitrate, 1~2g/L of hydrofluoric acid, phosphatase 79~10g/L, 12~13g/L of nitric acid, 6.5~7g/L of nickel nitrate, 2.5~3g/L of natrium nitrosum, 5~5.5g/L of tartaric acid, 0.2~0.5g/L of fluoride, 0.5~1.5g/L of rare-earth salts, water are supplied.The beneficial effects of the invention are as follows：Process is reasonable, and manufacturing cost is low, does not cause environmental pollution.
Description
Technical field
The present invention relates to metalwork technical field of surface, more particularly to a kind of phosphating solution and phosphating process.
Background technology
Phosphatization is one of etch-proof important method of metal material, and its object is to provide anticorrosion to parent metal to protect
Shield, play antifriction lubrication for preceding bottoming of painting, the adhesive force of raising coating layer and anti-corrosion capability and in intermetallic composite coating
Deng.Phosphatization is conventional pretreatment technology, should belong to chemical conversion film process in principle.Using mainly steel and iron parts table in engineering
Face phosphatization, but non-ferrous metal such as aluminium, zinc part can also apply phosphatization.Steel surface Pretreatment Technology Before Finishing refers to degreasing (oil removing), removed
Rust, table are adjusted, phosphatization.Different yet with the situation of workpiece surface, then production technology is also different, without de- in some technique
Fat or no derusting process, some technique is then without surface adjustment process, but phosphatization process is definitely indispensable.In application
In processing procedure, if unclear remove grease, oxide skin and rusty scale, without phosphorating treatment, directly painted and electrostatic spraying,
It will produce the coating of steel surface to come off, lose the meaning of application.At present, metal-processing industry both domestic and external, thin plate add
The manufacturing industry such as industrial, petroleum industry and automobile, bicycle, High-low voltage switch cabinet, antitheft door, railway is generally using middle and high
Warm phosphatization, there is the problems such as inconvenient for operation, phosphating solution consumption is big, cost is high, environmental pollution.
The content of the invention
Based on this, it is necessary to provide a kind of reusable, cost-effective and phosphating solution free from environmental pollution and phosphatization
Technique.
A kind of phosphating solution, including：96~98g/L of zinc dihydrogen phosphate, 7~8g/L of ammonium molybdate, 8~9g/L of magnesium sulfate, nitric acid
25~26g/L of calcium, 1~2g/L of hydrofluoric acid, phosphatase 79~10g/L, 12~13g/L of nitric acid, the g/L of nickel nitrate 6.5~7, nitrous acid
2.5~3g/L of sodium, 5~5.5g/L of tartaric acid, 0.2~0.5g/L of fluoride, the g/L of rare-earth salts 0.5~1.5, water are supplied.
In one of the embodiments, phosphating process concretely comprises the following steps：
(1) workpiece manually pre-processes：Pending workpiece is ready to by staff；
(2) oil removing degreasing：There are the product of oil, the abundant oil removing in degreasing tank to workpiece surface；
(3) wash：The workpiece of oil removing is positioned in Rinsing Area and cleaned；
(4) acid pickling and rust removing：Product surface is not allow for oil before pickling, constantly to stir acid solution during pickling, shorten acid as far as possible
The time is washed, avoids hydrogen embrittlement and heavy corrosion phenomenon from occurring；
(5) wash：It is sent in flowing Rinsing Area and cleans after pickling, it is ensured that cleaning performance, and avoid pickle from entering phosphorus
Change groove and cause phosphatization liquid acidity excessive, influence phosphatization effect；
(6) phosphatization：Phosphating solution is prepared by each component, workpiece of step (5) washing after clean is put into the phosphorus prepared
Change in liquid and carry out phosphatization, phosphating solution temperature control is at 55~75 DEG C, and time control was at 30~40 minutes；It should determine in parkerizing process
When shake material frame up and down, make workpiece surface clean, reaction is uniform；
(7) wash：Workpiece after phosphatization is positioned in Rinsing Area again and cleaned；
(8) dry：Workpiece after step (7) is cleaned is dried；
(9) oil：Finally product of the step (8) after dried is oiled.
Above-mentioned phosphating solution, in use, tank liquor concentration and liquid level can constantly decline, after often adding concentrate, it is necessary to
Examine total acidity TA and free acidity FA and adjust in time, make its value can operation in prescribed limit；The method of adjustment is：It is few
Amount repeatedly adds concentrate, to maintain the balance of total acidity and free acidity in phosphating solution.The beneficial effects of the invention are as follows：Process
Rationally, manufacturing cost is low, does not cause environmental pollution.
Brief description of the drawings
Fig. 1 is the phosphating process flow chart of the present invention；
Embodiment
Presently preferred embodiments of the present invention is described in detail below so that advantages and features of the invention can be easier to by
It will be appreciated by those skilled in the art that apparent clearly defined so as to be made to protection scope of the present invention.
Embodiment 1：
A kind of phosphating solution, including：Zinc dihydrogen phosphate 96g/L, ammonium molybdate 7g/L, magnesium sulfate 8g/L, calcium nitrate 25g/L, hydrogen
Fluoric acid 1g/L, phosphatase 79 g/L, nitric acid 12g/L, nickel nitrate 6.5g/L, natrium nitrosum 2.5g/L, tartaric acid 5g/L, fluoride
0.2g/L, rare-earth salts 0.5g/L, water are supplied.
Wherein, phosphating process concretely comprises the following steps：
(1) workpiece manually pre-processes：Pending workpiece is ready to by staff；
(2) oil removing degreasing：There are the product of oil, the abundant oil removing in degreasing tank to workpiece surface；
(3) wash：The workpiece of oil removing is positioned in Rinsing Area and cleaned；
(4) acid pickling and rust removing：Product surface is not allow for oil before pickling, constantly to stir acid solution during pickling, shorten acid as far as possible
The time is washed, avoids hydrogen embrittlement and heavy corrosion phenomenon from occurring；
(5) wash：It is sent in flowing Rinsing Area and cleans after pickling, it is ensured that cleaning performance, and avoid pickle from entering phosphorus
Change groove and cause phosphatization liquid acidity excessive, influence phosphatization effect；
(6) phosphatization：Phosphating solution is prepared by each component, workpiece of step (5) washing after clean is put into the phosphorus prepared
Change in liquid and carry out phosphatization, phosphating solution temperature control is at 55~75 DEG C, and time control was at 30~40 minutes；It should determine in parkerizing process
When shake material frame up and down, make workpiece surface clean, reaction is uniform；
(7) wash：Workpiece after phosphatization is positioned in Rinsing Area again and cleaned；
(8) dry：Workpiece after step (7) is cleaned is dried；
(9) oil：Finally product of the step (8) after dried is oiled.
Embodiment 2：
A kind of phosphating solution, including：Zinc dihydrogen phosphate 97g/L, ammonium molybdate 7.5g/L, magnesium sulfate 8.5g/L, calcium nitrate
25.5g/L, hydrofluoric acid 1.5g/L, phosphatase 79 .5g/L, nitric acid 12.5g/L, nickel nitrate 6.75g/L, natrium nitrosum 2.75g/L, wine
Stone acid 5.25g/L, fluoride 0.35g/L, rare-earth salts 0.75g/L, water are supplied.
Wherein, phosphating process specific steps are same as Example 1.
Embodiment 3：
A kind of phosphating solution, including：Zinc dihydrogen phosphate 98g/L, ammonium molybdate 8g/L, magnesium sulfate 9g/L, calcium nitrate 26g/L, hydrogen
Fluoric acid 2g/L, phosphatase 11 0g/L, nitric acid 13g/L, nickel nitrate 7g/L, natrium nitrosum 3g/L, tartaric acid 5.5g/L, fluoride 0.5g/
L, rare-earth salts 1.5g/L, water are supplied.
Wherein, phosphating process specific steps are same as Example 1.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (2)
- A kind of 1. phosphating solution, it is characterised in that including：
- 2. a kind of phosphating process, it is characterised in that concretely comprise the following steps：(1) workpiece manually pre-processes：Pending workpiece is ready to by staff；(2) oil removing degreasing：There are the product of oil, the abundant oil removing in degreasing tank to workpiece surface；(3) wash：The workpiece of oil removing is positioned in Rinsing Area and cleaned；(4) acid pickling and rust removing：Product surface is not allow for oil before pickling, acid solution is constantly stirred during pickling, when shortening pickling as far as possible Between, avoid hydrogen embrittlement and heavy corrosion phenomenon from occurring；(5) wash：It is sent in flowing Rinsing Area and cleans after pickling, it is ensured that cleaning performance, and avoid pickle from entering Phosphating Slot And cause phosphatization liquid acidity excessive, influence phosphatization effect；(6) phosphatization：Phosphating solution is prepared by each component, workpiece of step (5) washing after clean is put into the phosphating solution prepared Middle carry out phosphatization, phosphating solution temperature control is at 55~75 DEG C, and time control was at 30~40 minutes；Should regularly up and down in parkerizing process Material frame is shaken in left and right, makes workpiece surface clean, and reaction is uniform；(7) wash：Workpiece after phosphatization is positioned in Rinsing Area again and cleaned；(8) dry：Workpiece after step (7) is cleaned is dried；(9) oil：Finally product of the step (8) after dried is oiled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710604210.5A CN107338430A (en) | 2017-07-24 | 2017-07-24 | A kind of phosphating solution and phosphating process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710604210.5A CN107338430A (en) | 2017-07-24 | 2017-07-24 | A kind of phosphating solution and phosphating process |
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| CN107338430A true CN107338430A (en) | 2017-11-10 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107904582A (en) * | 2017-12-10 | 2018-04-13 | 喜科金属（昆山）有限公司 | The special bonderite of process flow for carrying out surface treatment |
| CN108179409A (en) * | 2017-12-26 | 2018-06-19 | 廊坊京磁精密材料有限公司 | The phosphatization antirust method of neodymium iron boron magnetic body |
| CN109930143A (en) * | 2019-04-24 | 2019-06-25 | 宁波瑞亚紧固件制造有限公司 | A kind of processing method on high-intensity fasteners surface |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103469188A (en) * | 2013-09-30 | 2013-12-25 | 宜都市华益工具制造有限公司 | Phosphating solution for alloy steel and phosphorization technology thereof |
| CN103484847A (en) * | 2013-10-18 | 2014-01-01 | 国家电网公司 | Phosphating solution and phosphating method |
| CN104060258A (en) * | 2014-06-13 | 2014-09-24 | 安徽省宁国天成电工有限公司 | Phosphating solution for metal surface treatment |
| CN104250778A (en) * | 2013-06-28 | 2014-12-31 | 无锡洛社科技创业有限公司 | Phosphatization liquid for wire rod drawing and hot-galvanizing pretreatment |
| CN104250780A (en) * | 2013-06-28 | 2014-12-31 | 无锡洛社科技创业有限公司 | One-step oil-removal rust-removal phosphatization technology of steel workpiece |
| CN105648433A (en) * | 2014-11-19 | 2016-06-08 | 重庆江东摩托车配件有限公司 | Phosphating technology |
-
2017
- 2017-07-24 CN CN201710604210.5A patent/CN107338430A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104250778A (en) * | 2013-06-28 | 2014-12-31 | 无锡洛社科技创业有限公司 | Phosphatization liquid for wire rod drawing and hot-galvanizing pretreatment |
| CN104250780A (en) * | 2013-06-28 | 2014-12-31 | 无锡洛社科技创业有限公司 | One-step oil-removal rust-removal phosphatization technology of steel workpiece |
| CN103469188A (en) * | 2013-09-30 | 2013-12-25 | 宜都市华益工具制造有限公司 | Phosphating solution for alloy steel and phosphorization technology thereof |
| CN103484847A (en) * | 2013-10-18 | 2014-01-01 | 国家电网公司 | Phosphating solution and phosphating method |
| CN104060258A (en) * | 2014-06-13 | 2014-09-24 | 安徽省宁国天成电工有限公司 | Phosphating solution for metal surface treatment |
| CN105648433A (en) * | 2014-11-19 | 2016-06-08 | 重庆江东摩托车配件有限公司 | Phosphating technology |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107904582A (en) * | 2017-12-10 | 2018-04-13 | 喜科金属（昆山）有限公司 | The special bonderite of process flow for carrying out surface treatment |
| CN108179409A (en) * | 2017-12-26 | 2018-06-19 | 廊坊京磁精密材料有限公司 | The phosphatization antirust method of neodymium iron boron magnetic body |
| CN109930143A (en) * | 2019-04-24 | 2019-06-25 | 宁波瑞亚紧固件制造有限公司 | A kind of processing method on high-intensity fasteners surface |
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Application publication date: 20171110 |
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