CN105648433A - Phosphating technology - Google Patents
Phosphating technology Download PDFInfo
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- CN105648433A CN105648433A CN201410661822.4A CN201410661822A CN105648433A CN 105648433 A CN105648433 A CN 105648433A CN 201410661822 A CN201410661822 A CN 201410661822A CN 105648433 A CN105648433 A CN 105648433A
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- phosphating
- phosphatization
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Abstract
The invention discloses a phosphating technology. The phosphating technology is characterized by including the following steps that (1) technological processes including manual pretreatment on workpieces, oil removing degreasing, washing, acid pickling and dust removal, washing, flushing, phosphating, washing, drying and oil applying are executed; (4.1) a phosphating solution is prepared, wherein the phosphating solution is a medium temperature Zn-Ca phosphating solution and can form a phosphating film with fine and compact crystals on the surfaces of the treated steel workpieces within a short time, the color of the film can be shallow grey to dark grey, and the phosphating film is fine, even and good in corrosion-resisting property and wear-resisting property; during first-time preparing, clean tap water is injected into a treatment groove made of an acid-resistant material, the temperature rises to 40 DEG C to 50 DEG C, a concentrated solution is added according to the proportion of 11%, and sufficient and even stirring is carried out; the temperature continuously rises to the technology temperature ranging from 55 DEG C to 75 DEG C, and operation can be started after acidity is determined; and (4.2) phosphating is carried out, wherein (4.2.1) the workpieces obtained after acid pickling are thoroughly washed, and are then placed into the prepared phosphating solution for phosphating, the temperature of the phosphating solution is controlled to range from 55 DEG C to 75 DEG C, and the time is controlled to range from 30 min to 40 min; and a material frame should be shaken up and down and left and ring on time in the phosphating process.
Description
Technical field
The present invention relates to a kind of phosphating process.
Background technology
Existing phosphating process exists that procedure arrangement is unreasonable, operation is various, requires higher to operator's experience so that production cost is higher.
Summary of the invention
Because the above-mentioned defect of prior art, technical problem to be solved by this invention be to provide a kind of operation rationally, the phosphating process of low cost of manufacture.
For achieving the above object, the present invention provides
A kind of phosphating process, comprises the steps:
1), technical process:
Workpiece artificial pre-treatment oil removing degreasing washing acid pickling and rust removing washing is rinsed phosphatization washing (more than 80 DEG C) drying and is oiled (oil temperature less than 150 DEG C);
2), preparation work
2.1), equipment inspection: being checked by implement used before operation, whether Inspection equipment is intact, if there being problem to get rid of in time comprehensively.
2.2), read technical papers and production ordering: after receiving task, should carefully read technical papers and production ordering, carry out operation by row according to technical process, and keep the cleaning and complete of technical papers and production ordering.
2.3), raw material prepare: according to the requirement of production ordering, according to product amount number, prepare corresponding industrial chemicals, accomplish that industrial chemicals is not wasted as far as possible.
2.4), dress and prepare necessary safety precaution articles for use and station utensil, preparation work.
3), phosphatization operation
3.1), oil removing: the product that product surface is had oil, it is necessary to abundant oil removing in degreasing tank.
3.2), pickling:
3.3) before pickling, product surface has not allowed oil, constantly to be stirred acid solution (continuous up and down material basket, to ensure pickling effect) during pickling.
3.4) shorten pickling time as far as possible, avoid hydrogen embrittlement and heavy corrosion phenomenon to occur.
3.5) deliver to after pickling in flowing Rinsing Area and clean, cleaning performance will be ensured, and avoid pickle solution to enter phosphatization groove and cause phosphatization liquid acidity excessive, affect phosphatization effect.
4), phosphatization
4.1) phosphatization liquid is prepared: this product is temperature Zinc-calcium series phosphatating liquid in one, these product can make processed surface of steel workpiece form one layer of crystallization carefully phosphatize phosphate coat of densification within the short period of time, film is in light grey to Dark grey, and phosphatize phosphate coat fine uniform, corrosion-proof wear performance are good. Inject clean tap water during first preparation in the treatment trough that acid resisting material is made, it is warmed up to 40��50 �� of C, adds concentrated solution in 11% (volume ratio) ratio, stir.Continue to be warmed to technological temperature (55��75 DEG C), and operation after confirming acidity, can be started.
4.2) phosphatization:
4.2.1) carrying out phosphatization by putting into the phosphatization liquid prepared after workpiece water wash clean good for pickling, phosphatization liquid temp controls at 55��75 DEG C, and at 30��40 minutes, (phosphating time suitably can shorten time controling with the rising of temperature or concentration, otherwise extends. If temperature is when 50��65 DEG C, the time can be controlled in 20��30 minutes). Timing shake up and down should expecting frame in parkerizing process, make workpiece surface clean, reaction is evenly.
4.2.2) in use procedure, groove liquid concentration and liquid level can constantly decline, after often adding concentrated solution, total acidity TA and free acidity FA must be checked and adjust in time, make its value in specialized range (between free acidity FA:1.0��2.5, between total acidity TA:15��25, acid than controlling between 10��15) in can operation. The method of adjustment is: repeatedly adds concentrated solution on a small quantity, maintains the balance of total acidity and free acidity in phosphatization liquid. (often adding one barrel of phosphatization liquid, free acid FA raises 0.075��0.1, total acid TA rising 0.5��1.0).
The invention has the beneficial effects as follows: operation of the present invention is reasonable, low cost of manufacture.
Embodiment
Below in conjunction with embodiment, the invention will be further described:
A kind of phosphating process, comprises the steps:
1), technical process:
Workpiece artificial pre-treatment oil removing degreasing washing acid pickling and rust removing washing is rinsed phosphatization washing (more than 80 DEG C) drying and is oiled (oil temperature less than 150 DEG C);
2), preparation work
2.1), equipment inspection: being checked by implement used before operation, whether Inspection equipment is intact, if there being problem to get rid of in time comprehensively.
2.2), read technical papers and production ordering: after receiving task, should carefully read technical papers and production ordering, carry out operation by row according to technical process, and keep the cleaning and complete of technical papers and production ordering.
2.3), raw material prepare: according to the requirement of production ordering, according to product amount number, prepare corresponding industrial chemicals, accomplish that industrial chemicals is not wasted as far as possible.
2.4), dress and prepare necessary safety precaution articles for use and station utensil, preparation work.
3), phosphatization operation
3.1), oil removing: the product that product surface is had oil, it is necessary to abundant oil removing in degreasing tank.
3.2), pickling:
3.3) before pickling, product surface has not allowed oil, constantly to be stirred acid solution (continuous up and down material basket, to ensure pickling effect) during pickling.
3.4) shorten pickling time as far as possible, avoid hydrogen embrittlement and heavy corrosion phenomenon to occur.
3.5) deliver to after pickling in flowing Rinsing Area and clean, cleaning performance will be ensured, and avoid pickle solution to enter phosphatization groove and cause phosphatization liquid acidity excessive, affect phosphatization effect.
4), phosphatization
4.1) phosphatization liquid is prepared: this product is temperature Zinc-calcium series phosphatating liquid in one, these product can make processed surface of steel workpiece form one layer of crystallization carefully phosphatize phosphate coat of densification within the short period of time, film is in light grey to Dark grey, and phosphatize phosphate coat fine uniform, corrosion-proof wear performance are good. Inject clean tap water during first preparation in the treatment trough that acid resisting material is made, it is warmed up to 40��50 �� of C, adds concentrated solution in 11% (volume ratio) ratio, stir. Continue to be warmed to technological temperature (55��75 DEG C), and operation after confirming acidity, can be started.
4.2) phosphatization:
4.2.1) carrying out phosphatization by putting into the phosphatization liquid prepared after workpiece water wash clean good for pickling, phosphatization liquid temp controls at 55��75 DEG C, and at 30��40 minutes, (phosphating time suitably can shorten time controling with the rising of temperature or concentration, otherwise extends. If temperature is when 50��65 DEG C, the time can be controlled in 20��30 minutes). Timing shake up and down should expecting frame in parkerizing process, make workpiece surface clean, reaction is evenly.
4.2.2) in use procedure, groove liquid concentration and liquid level can constantly decline, after often adding concentrated solution, total acidity TA and free acidity FA must be checked and adjust in time, make its value in specialized range (between free acidity FA:1.0��2.5, between total acidity TA:15��25, acid than controlling between 10��15) in can operation. The method of adjustment is: repeatedly adds concentrated solution on a small quantity, maintains the balance of total acidity and free acidity in phosphatization liquid. (often adding one barrel of phosphatization liquid, free acid FA raises 0.075��0.1, total acid TA rising 0.5��1.0).
Claims (1)
1. a phosphating process, is characterized in that: comprise the steps:
1), technical process:
Workpiece artificial pre-treatment oil removing degreasing washing acid pickling and rust removing washing is rinsed phosphatization washing and drying and is oiled;
2), preparation work
2.1), equipment inspection: being checked by implement used before operation, whether Inspection equipment is intact, if there being problem to get rid of in time comprehensively;
2.2), read technical papers and production ordering: after receiving task, should carefully read technical papers and production ordering, carry out operation by row according to technical process, and keep the cleaning and complete of technical papers and production ordering;
2.3), raw material prepare: according to the requirement of production ordering, according to product amount number, prepare corresponding industrial chemicals, accomplish that industrial chemicals is not wasted as far as possible;
2.4), dress and prepare necessary safety precaution articles for use and station utensil, preparation work;
3), phosphatization operation
3.1), oil removing: the product that product surface is had oil, it is necessary to abundant oil removing in degreasing tank;
3.2), pickling:
3.3) before pickling, product surface has not allowed oil, constantly to be stirred acid solution during pickling;
3.4) shorten pickling time as far as possible, avoid hydrogen embrittlement and heavy corrosion phenomenon to occur;
3.5) deliver to after pickling in flowing Rinsing Area and clean, cleaning performance will be ensured, and avoid pickle solution to enter phosphatization groove and cause phosphatization liquid acidity excessive, affect phosphatization effect;
4), phosphatization
4.1) phosphatization liquid is prepared: this product is temperature Zinc-calcium series phosphatating liquid in one, these product can make processed surface of steel workpiece form one layer of crystallization carefully phosphatize phosphate coat of densification within the short period of time, film is in light grey to Dark grey, and phosphatize phosphate coat fine uniform, corrosion-proof wear performance are good; Inject clean tap water during first preparation in the treatment trough that acid resisting material is made, it is warmed up to 40��50 �� of C, adds concentrated solution in 11% (volume ratio) ratio, stir; Continue to be warmed to technological temperature (55��75 DEG C), and operation after confirming acidity, can be started;
4.2) phosphatization:
4.2.1) carrying out phosphatization by putting into the phosphatization liquid prepared after workpiece water wash clean good for pickling, phosphatization liquid temp controls at 55��75 DEG C, and time controling was at 30��40 minutes; Timing shake up and down should expecting frame in parkerizing process, make workpiece surface clean, reaction is evenly;
4.2.2) in use procedure, groove liquid concentration and liquid level can constantly decline, after often adding concentrated solution, it is necessary to inspection total acidity TA and free acidity FA also adjusts in time so that it is being worth in specialized range can operation;The method of adjustment is: repeatedly adds concentrated solution on a small quantity, maintains the balance of total acidity and free acidity in phosphatization liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410661822.4A CN105648433A (en) | 2014-11-19 | 2014-11-19 | Phosphating technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410661822.4A CN105648433A (en) | 2014-11-19 | 2014-11-19 | Phosphating technology |
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| Publication Number | Publication Date |
|---|---|
| CN105648433A true CN105648433A (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410661822.4A Pending CN105648433A (en) | 2014-11-19 | 2014-11-19 | Phosphating technology |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107338430A (en) * | 2017-07-24 | 2017-11-10 | 东台市东环电工机械有限公司 | A kind of phosphating solution and phosphating process |
| CN108034938A (en) * | 2017-12-15 | 2018-05-15 | 中广核工程有限公司 | A kind of method and phosphating solution of nuclear power generating equipment bolt phosphatization |
| CN110747452A (en) * | 2019-12-12 | 2020-02-04 | 汉德车桥(株洲)齿轮有限公司 | Phosphorization method for precision forging gear |
| CN115074713A (en) * | 2022-06-09 | 2022-09-20 | 安徽长江紧固件有限责任公司 | Intermediate phosphating process for environment-friendly high-strength fastener |
-
2014
- 2014-11-19 CN CN201410661822.4A patent/CN105648433A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107338430A (en) * | 2017-07-24 | 2017-11-10 | 东台市东环电工机械有限公司 | A kind of phosphating solution and phosphating process |
| CN108034938A (en) * | 2017-12-15 | 2018-05-15 | 中广核工程有限公司 | A kind of method and phosphating solution of nuclear power generating equipment bolt phosphatization |
| CN110747452A (en) * | 2019-12-12 | 2020-02-04 | 汉德车桥(株洲)齿轮有限公司 | Phosphorization method for precision forging gear |
| CN115074713A (en) * | 2022-06-09 | 2022-09-20 | 安徽长江紧固件有限责任公司 | Intermediate phosphating process for environment-friendly high-strength fastener |
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Application publication date: 20160608 |
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