CN102994996A - Non-toxic environment-friendly normal temperature steel nigrescence treating agent and preparation method thereof - Google Patents
Non-toxic environment-friendly normal temperature steel nigrescence treating agent and preparation method thereof Download PDFInfo
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- CN102994996A CN102994996A CN2012105181127A CN201210518112A CN102994996A CN 102994996 A CN102994996 A CN 102994996A CN 2012105181127 A CN2012105181127 A CN 2012105181127A CN 201210518112 A CN201210518112 A CN 201210518112A CN 102994996 A CN102994996 A CN 102994996A
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Abstract
The invention discloses a non-toxic environment-friendly normal temperature steel nigrescence treating agent, which consists of the following components by mass percent: 1-5% of blue copperas, 1-4% of zinc dihydrogen phosphate, 1-6% of zinc nitrate, 0.1-0.3% of citric acid, 1-2% of EDTA(ethylene diamine tetraacetic acid)-disodium, 1-6% of sodium thiosulfate, 1-4% of ammonium molybdate, 0.5-1.5% of nickel sulfate hexahydrate, 0.1-0.6% of hydroquinone, 0.5-1.5% of potassium dichromate and the balance of water. The steps of the preparation method is as follows in sequence: firstly adding water calculated and weighted into a reaction kettle, starting a stirrer, controlling the rotated speed within 60 turns per minute, then sequentially and slowly adding the blue copperas, nickel sulfate hexahydrate, citric acid, zinc dihydrogen phosphate, zinc nitrate, EDTA-disodium, sodium thiosulfate, ammonium molybdate, hydroquinone, and potassium dichromate that are calculated and weighted into the reaction kettle, wherein each raw material added into the reaction kettle needs to be stirred for complete dissolution so as to obtain yellowgreen white out uniform liquid finally.
Description
Technical field
The present invention relates to a kind of room temperature blackening treatment agent and preparation method, especially a kind of stay-in-grade non-toxic, environmental friendly Chemical Colouring of Steel at Room Temperature treatment agent and preparation method.
Background technology
At present, the iron and steel parts normal temperature blackening processing technology is used in industrial production.But existing room temperature blackening treatment agent all contains toxic extremely strong tin anhydride or selenous acid basically, and is not only harmful to operator's health, also is unfavorable for environmental protection.Chemical Colouring of Steel at Room Temperature is processed and also have following outstanding problem in industrial production simultaneously: the blackening process working fluid is unstable and work-ing life is short, processing parameter is strict.Above-mentioned defect has hindered the widespread use of Chemical Colouring of Steel at Room Temperature treatment technology and has developed rapidly.
Summary of the invention
The present invention is in order to solve the existing above-mentioned technical problem of prior art, a kind of stay-in-grade non-toxic, environmental friendly Chemical Colouring of Steel at Room Temperature treatment agent and preparation method to be provided.
Technical solution of the present invention is: a kind of non-toxic, environmental friendly Chemical Colouring of Steel at Room Temperature treatment agent is characterized in that being made of the component of following mass percent: cupric sulfate pentahydrate 1-5%, primary zinc phosphate 1-4%, zinc nitrate 1-6%, citric acid 0.1-0.3%, EDTA-disodium 1-2%, Sulfothiorine 1-6%, ammonium molybdate 1-4%, nickel sulfate hexahydrate 0.5-1.5%, Resorcinol 0.1-0.6%, potassium bichromate 0.5-1.5% and water surplus.
A kind of preparation method of above-mentioned non-toxic, environmental friendly Chemical Colouring of Steel at Room Temperature treatment agent, it is characterized in that carrying out as follows successively: the water that will calculate first weighing joins in the reactor, start agitator, the control rotating speed is 60 rev/mins, then will calculate successively the cupric sulfate pentahydrate of weighing, nickel sulfate hexahydrate, citric acid, primary zinc phosphate, zinc nitrate, the EDTA-disodium, Sulfothiorine, ammonium molybdate, Resorcinol, potassium bichromate joins in the reactor slowly, whenever add a kind of raw material and all must be stirred to abundant dissolving, be stirred at last solution and be the opaque uniform liquid of yellow-green colour.
The present invention does not contain the extremely strong tin anhydride of toxicity or selenous acid, and healthy harmless to the operator is beneficial to environmental protection, has simultaneously steady quality and long service life, simple operation and other advantages.
Embodiment
Embodiment 1:
Raw materials used and mass percent is as follows: cupric sulfate pentahydrate 1%, primary zinc phosphate 4%, zinc nitrate 1%, citric acid 0.3%, EDTA-disodium 1%, Sulfothiorine 6%, ammonium molybdate 1%, nickel sulfate hexahydrate 1.5%, Resorcinol 0.1%, potassium bichromate 1.5% and water surplus.
The preparation method carries out successively as follows: the water that will calculate first weighing joins in the reactor, start agitator, the control rotating speed is 60 rev/mins, then cupric sulfate pentahydrate, nickel sulfate hexahydrate, citric acid, primary zinc phosphate, zinc nitrate, EDTA-disodium, Sulfothiorine, ammonium molybdate, Resorcinol, the potassium bichromate that will calculate successively weighing join in the reactor slowly, whenever add a kind of raw material and all must be stirred to abundant dissolving, be stirred at last solution and be the opaque uniform liquid of yellow-green colour.
Embodiment 2:
Raw material and production method are all with embodiment 1, and its raw materials quality per-cent is as follows: cupric sulfate pentahydrate 5%, primary zinc phosphate 1%, zinc nitrate 6%, citric acid 0.1%, EDTA-disodium 2%, Sulfothiorine 1%, ammonium molybdate 4%, nickel sulfate hexahydrate 0.5%, Resorcinol 0.6%, potassium bichromate 0.5% and water surplus.
Embodiment 3:
Raw material and production method are all with embodiment 1, and its raw materials quality per-cent is as follows: cupric sulfate pentahydrate 3%, primary zinc phosphate 2%, zinc nitrate 4%, citric acid 0.2%, EDTA-disodium 1.5%, Sulfothiorine 3%, ammonium molybdate 2%, nickel sulfate hexahydrate 1.0%, Resorcinol 0.3%, potassium bichromate 1.0% and water surplus.
During use, the embodiment of the invention 1,2 or 3 is added water preparation working fluid for 1:10 by volume, and adopt phosphoric acid to adjust the pH value to 1.0-2.0Pt, this moment, working fluid was blackish green, process 20-30min according to the unlike material room temperature blackening, can obtain the splendid room temperature blackening rete of bonding strength, the work tank liquor is stable.
Performance index: standard WJ535-82 " steel-iron components alkali electroless oxidation technology condition " the piece test result after blackout who promulgates with reference to Ministry of ordnance Industry:
1. be not less than 32 seconds with the experiment of 3% copper sulfate drop, variable color time (15-20 ℃).
2. conformance with standard still after in 3% neutral aqueous solution of sodium oxide, soaking 2 hours.
The result shows that workpiece performance that the present invention processes reaches the requirement of ministerial standard.
Claims (2)
1. a non-toxic, environmental friendly Chemical Colouring of Steel at Room Temperature treatment agent is characterized in that being made of the component of following mass percent: cupric sulfate pentahydrate 1-5%, primary zinc phosphate 1-4%, zinc nitrate 1-6%, citric acid 0.1-0.3%, EDTA-disodium 1-2%, Sulfothiorine 1-6%, ammonium molybdate 1-4%, nickel sulfate hexahydrate 0.5-1.5%, Resorcinol 0.1-0.6%, potassium bichromate 0.5-1.5% and water surplus.
2. the preparation method of a non-toxic, environmental friendly Chemical Colouring of Steel at Room Temperature treatment agent as claimed in claim 1, it is characterized in that carrying out as follows successively: the water that will calculate first weighing joins in the reactor, start agitator, the control rotating speed is 60 rev/mins, then will calculate successively the cupric sulfate pentahydrate of weighing, nickel sulfate hexahydrate, citric acid, primary zinc phosphate, zinc nitrate, the EDTA-disodium, Sulfothiorine, ammonium molybdate, Resorcinol, potassium bichromate joins in the reactor slowly, whenever add a kind of raw material and all must be stirred to abundant dissolving, be stirred at last solution and be the opaque uniform liquid of yellow-green colour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105181127A CN102994996A (en) | 2012-12-06 | 2012-12-06 | Non-toxic environment-friendly normal temperature steel nigrescence treating agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012105181127A CN102994996A (en) | 2012-12-06 | 2012-12-06 | Non-toxic environment-friendly normal temperature steel nigrescence treating agent and preparation method thereof |
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| CN102994996A true CN102994996A (en) | 2013-03-27 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103469187A (en) * | 2013-08-14 | 2013-12-25 | 南京久道科技有限公司 | Treatment fluid for phosphatizing and blackening steel surface |
| CN106086680A (en) * | 2016-08-16 | 2016-11-09 | 宁波瑞国精机工业有限公司 | A kind of high strength nut and processing method thereof |
| CN106282819A (en) * | 2016-08-16 | 2017-01-04 | 宁波瑞国精机工业有限公司 | A kind of high-strength pin and processing method thereof |
| CN106868490A (en) * | 2016-12-22 | 2017-06-20 | 当涂县宏宇金属炉料有限责任公司 | A kind of environmentally friendly stainless steel blackening process method |
| CN106967970A (en) * | 2017-04-10 | 2017-07-21 | 武汉迪赛新材料有限公司 | Normal-temperature blackening passivating agent for steel surface |
| CN103834942B (en) * | 2013-11-30 | 2017-08-01 | 湖北侨光石化装备股份有限公司 | Multifunction surface processing pond and its hair blackening liquid |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103469187A (en) * | 2013-08-14 | 2013-12-25 | 南京久道科技有限公司 | Treatment fluid for phosphatizing and blackening steel surface |
| CN103469187B (en) * | 2013-08-14 | 2015-07-29 | 南京久道科技有限公司 | For the treatment solution of steel surface phosphatization melanism |
| CN103834942B (en) * | 2013-11-30 | 2017-08-01 | 湖北侨光石化装备股份有限公司 | Multifunction surface processing pond and its hair blackening liquid |
| CN106086680A (en) * | 2016-08-16 | 2016-11-09 | 宁波瑞国精机工业有限公司 | A kind of high strength nut and processing method thereof |
| CN106282819A (en) * | 2016-08-16 | 2017-01-04 | 宁波瑞国精机工业有限公司 | A kind of high-strength pin and processing method thereof |
| CN106086680B (en) * | 2016-08-16 | 2018-02-09 | 宁波瑞国精机工业有限公司 | A kind of high strength nut and its processing method |
| CN106282819B (en) * | 2016-08-16 | 2018-02-09 | 宁波瑞国精机工业有限公司 | A kind of high-strength pin and its processing method |
| CN106868490A (en) * | 2016-12-22 | 2017-06-20 | 当涂县宏宇金属炉料有限责任公司 | A kind of environmentally friendly stainless steel blackening process method |
| CN106967970A (en) * | 2017-04-10 | 2017-07-21 | 武汉迪赛新材料有限公司 | Normal-temperature blackening passivating agent for steel surface |
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Application publication date: 20130327 |