CN104131274A - Nickel-cobalt-plated nanometer superhard coating liquid and high-pressure nozzle covering coating liquid - Google Patents
Nickel-cobalt-plated nanometer superhard coating liquid and high-pressure nozzle covering coating liquid Download PDFInfo
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- CN104131274A CN104131274A CN201410388354.8A CN201410388354A CN104131274A CN 104131274 A CN104131274 A CN 104131274A CN 201410388354 A CN201410388354 A CN 201410388354A CN 104131274 A CN104131274 A CN 104131274A
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Abstract
The invention relates to nickel-cobalt-plated nanometer superhard coating liquid and a high-pressure nozzle covering the coating liquid. The coating liquid is prepared in the following steps: by taking sodium pyrophosphate or fluoboric acid as a complexing agent, and adding cobalt sulfate, sodium hypophosphite, sodium citrate, boric acid and ZE brighteners for compounding. A manufacturing process of the nozzle comprises the following steps: arranging the nozzle in the coating liquid, heating the coating liquid to the temperature of 80 to 90 DEG C, and preserving the temperature for over 2 hours. According to the nickel-cobalt-plated nanometer superhard coating, wear-resistant, anticorrosive, high-pressure-scouring-resistant and cooling medium scaling-resistant coatings are formed on inner and outer surfaces of the high-pressure nozzle by adopting a process method for performing chemical treatment on the whole surface of the nozzle by using a runner, so that when the nozzle is difficultly worn during operation, the thermal stability temperature and high-temperature oxidation resistance temperature of the nozzle are higher than 1100 DEG C according to detection, the hardness is higher than HRC75, the high pressure scouring resistance is over 250MP, the bonding strength between the coating and the matrix is higher than 100N, cellular matters are uniformly distributed on the surface of the coating due to check, the tissue is dense, and expensive imported like products are replaced.
Description
Technical field
The present invention relates to the cooling systems technology of steel mill's high pressure field, relate in particular to a kind of Flat-shaped uniform jet nozzle of energy high voltage and constant current ejection high-pressure coolant body.
Background technology
Flat-section nozzle has the advantages such as spraying pressure is high, jet velocity is fast and is applied in widely in each steel mill's steel rolling and steel ingot production.But as constant character energy and high pressure resistant erosive wear and the dirtization corrosive nature of weighing the good and bad important indicator of its performance, it is the performance that homogeneity in all directions of the highly pressurised liquid of nozzle ejection and the liquid that ejects keep constant speed, the wear resisting property of nozzle and antiscale corrosive nature, be usually difficult to be guaranteed; For head it off, conventional way is to adopt the domestic wolfram varbide hard mmaterial sintering more extensively using in the industry to make, but compares with similar kind of product of German import, and its life-span is half of imported product.
Summary of the invention
The object of this invention is to provide a kind of cobalt plating nano superhard coating and apply to the high pressure spray nozzle surface that the metallurgical burn-back of tungsten-carbide powder forms, it is by adopting chemical treatment technology to make the whole surfaces externally and internally of high pressure spray nozzle plate certain thickness wear-resisting, corrosion resistant coating at the high pressure spray nozzle whole product in surface and runner face, this abrasion-proof corrosion-proof coating has wear-resistant, resistance to erosion, the performance of high temperature oxidation resisting and water-fast matter dirtization, can extend its work-ing life.
The technical solution used in the present invention is for this reason: the present invention be take trisodium phosphate as complexing agent, adds rose vitriol, sodium hypophosphite, Trisodium Citrate, boric acid, ZE brightening agent is composite forms.
The ratio of each component is: take trisodium phosphate as 1L be benchmark, single nickel salt: 30-40g; Rose vitriol: 5-15g; Sodium hypophosphite 20-30g; Trisodium Citrate 40-50g; Boric acid 15-25g; ZE brightening agent 20-40g; The amount of each component can expand in proportion or dwindle.
The present invention or just fluoroboric acid, water, alcohol are mutually miscible, make complexing agent; Add rose vitriol, sodium hypophosphite, Trisodium Citrate, boric acid, ZE brightening agent is composite forms.
Described, fluoroboric acid: water: alcohol=1:1:1, weight ratio; Described alcohol is the alcohol of no more than four of carbon atom.
The ratio of each component is: take fluoroboric acid complexing agent as 1L be benchmark, single nickel salt: 30-40g; Rose vitriol: 5-15g; Sodium hypophosphite 20-30g; Trisodium Citrate 40-50g; Boric acid 15-25g; ZE brightening agent 20-40g; The amount of each component can expand in proportion or dwindle.
A kind of nickel plating cobalt nano superhard coating high pressure spray nozzle, surfaces externally and internally at the metallurgy sintered high pressure spray nozzle forming of tungsten-carbide powder adopts chemical treatment technology to plate the coating that one deck has nickel plating cobalt nano superhard masking liquid to make, its manufacturing process is: nozzle is placed on and is coated with in liquor, be added to 80-90 degree, be incubated and make above for 2 hours, consider cost, be generally two to four hours.
Advantage of the present invention is: it is research object that cobalt plating nano superhard coating system is take in the present invention, by the o doping of research Elements C and multilayered structure, design, improve the performance (bonding strength of toughness, stress, coating and matrix, thermostability and oxidation resistance temperature) of coating and study its mechanism of action, carry out on this basis the optimization design of coated material and structure, develop cobalt nano laminated coating.
Cobalt plating nano superhard coating of the present invention on the whole surface of high pressure spray nozzle with on runner, adopt chemical treatment technology method within it outside surface to form one deck wear-resistant, anticorrosive, anti-high pressure washes away, anti-heat-eliminating medium dirtization coating makes nozzle when work, not easy to wear, its thermal stable temperature and high-temperature oxidation resistant temperature are all higher than 1100 ℃ after testing, hardness is higher than HRC75, high pressure resistant wash away pressure 250MP more than, the bonding strength of coating and matrix is greater than 100N, coating surface is uniformly distributed for born of the same parents' shape thing on inspection, dense structure, and surfaceness is Ra0.8; Apply to improve more than 10 times its work-ing life on steel mill's high pressure cooling system, substitute the expensive import like product of the eighteenth of the twenty.
Accompanying drawing explanation
Fig. 1 is the structural representation of nozzle of the present invention.
In figure, 1 is cobalt plating nano superhard coating, the 2nd, and nozzle.
Embodiment
The surfaces externally and internally of the high pressure spray nozzle 2 forming in the metallurgical burn-back of tungsten-carbide powder adopts chemical treatment technology plating one deck cobalt plating nano superhard coating 2, reaches the object of prolongation in work-ing life, replace imported like product.
Embodiment mono-:
The present invention be take trisodium phosphate as complexing agent, adds rose vitriol, sodium hypophosphite, Trisodium Citrate, boric acid, ZE brightening agent is composite forms.
The ratio of each component is: take trisodium phosphate as 1L be benchmark, single nickel salt: 40g; Rose vitriol: 15g; Sodium hypophosphite 25g; Trisodium Citrate 40g; Boric acid 20g; ZE brightening agent 30g.
Surfaces externally and internally at the metallurgy sintered high pressure spray nozzle forming of tungsten-carbide powder adopts chemical treatment technology to plate the coating that one deck has nickel plating cobalt nano superhard masking liquid to make, and its manufacturing process is: nozzle is placed on and is coated with in liquor, be added to 80 degree, be incubated and make for 3 hours.
Embodiment bis-:
The present invention be take trisodium phosphate as complexing agent, adds rose vitriol, sodium hypophosphite, Trisodium Citrate, boric acid, ZE brightening agent is composite forms.
The ratio of each component is: take trisodium phosphate as 1L be benchmark, single nickel salt: 30g; Rose vitriol: 10g; Sodium hypophosphite 20g; Trisodium Citrate 50g; Boric acid 15g; ZE brightening agent 20g.
Surfaces externally and internally at the metallurgy sintered high pressure spray nozzle forming of tungsten-carbide powder adopts chemical treatment technology to plate the coating that one deck has nickel plating cobalt nano superhard masking liquid to make, and its manufacturing process is: nozzle is placed on and is coated with in liquor, be added to 90 degree, be incubated and make for 2 hours.
Electroless cobalt plating is to utilize strong reductant---the reductive action of inferior sodium phosphate in electroless cobalt plating solution, and make cobalt ion be reduced into cobalt metal, be deposited on piece surface to be plated.Due to phosphorous in reductive agent, so acquisition is co-p alloy settled layer.The performances such as the electric force lines distribution causing because of plating piece complex geometry when electroless cobalt plating can be avoided electroplating is uneven, and the defect that covering power is poor, has improved coating against corrosion, wear-resisting, obtain porosity low, the coating of even compact.
Embodiment tri-:
The present invention or just fluoroboric acid, water, alcohol are mutually miscible, make complexing agent; Add rose vitriol, sodium hypophosphite, Trisodium Citrate, boric acid, ZE brightening agent is composite forms.
Described, fluoroboric acid: water: alcohol=1:1:1, weight ratio; Described alcohol is propyl carbinol CH3CH2CH2CH2OH.
The ratio of each component is: take fluoroboric acid complexing agent as 1L be benchmark, single nickel salt: 30g; Rose vitriol: 5g; Sodium hypophosphite 22g; Trisodium Citrate 45g; Boric acid 25g; ZE brightening agent 25g.
A kind of nickel plating cobalt nano superhard coating high pressure spray nozzle, surfaces externally and internally at the metallurgy sintered high pressure spray nozzle forming of tungsten-carbide powder adopts chemical treatment technology to plate the coating that one deck has nickel plating cobalt nano superhard masking liquid to make, its manufacturing process is: nozzle is placed on and is coated with in liquor, be added to 85 degree, be incubated and make for 2.5 hours.
Embodiment tetra-:
The present invention or just fluoroboric acid, water, alcohol are mutually miscible, make complexing agent; Add rose vitriol, sodium hypophosphite, Trisodium Citrate, boric acid, ZE brightening agent is composite forms.
Described, fluoroboric acid: water: alcohol=1:1.2:1.1, weight ratio; Described alcohol is secondary butanols (secondary alcohol) CH3CH2CH (OH) CH3.
The ratio of each component is: take fluoroboric acid complexing agent as 1L be benchmark, single nickel salt: 30g; Rose vitriol: 8g; Sodium hypophosphite 26g; Trisodium Citrate 42g; Boric acid 22g; ZE brightening agent 40g.
A kind of nickel plating cobalt nano superhard coating high pressure spray nozzle, surfaces externally and internally at the metallurgy sintered high pressure spray nozzle forming of tungsten-carbide powder adopts chemical treatment technology to plate the coating that one deck has nickel plating cobalt nano superhard masking liquid to make, its manufacturing process is: nozzle is placed on and is coated with in liquor, be added to 88 degree, be incubated and make for 2.2 hours.
Fluoroboric acid is colourless transparent liquid, mutually miscible with water and alcohol, after heating, and separable boron fluoride, its fluoro boron acid ion can be made hardening accelerator.
Claims (7)
1. a nickel plating cobalt nano superhard masking liquid, is characterized in that, take trisodium phosphate as complexing agent, adds rose vitriol, sodium hypophosphite, Trisodium Citrate, boric acid, ZE brightening agent is composite forms.
2. a kind of nickel plating cobalt nano superhard masking liquid according to claim 1, is characterized in that, the ratio of each component is: take trisodium phosphate as 1L be benchmark, single nickel salt: 30-40g; Rose vitriol: 5-15g; Sodium hypophosphite 20-30g; Trisodium Citrate 40-50g; Boric acid 15-25g; ZE brightening agent 20-40g; The amount of each component can expand in proportion or dwindle.
3. a nickel plating cobalt nano superhard masking liquid, is characterized in that, fluoroboric acid, water, alcohol is mutually miscible, makes complexing agent; Add rose vitriol, sodium hypophosphite, Trisodium Citrate, boric acid, ZE brightening agent is composite forms.
4. a kind of nickel plating cobalt nano superhard masking liquid according to claim 3, is characterized in that, described in, fluoroboric acid: water: alcohol=1:1:1, weight ratio; Described alcohol is the alcohol of no more than four of carbon atom.
5. a kind of nickel plating cobalt nano superhard masking liquid according to claim 3, is characterized in that, the ratio of each component is: take fluoroboric acid complexing agent as 1L be benchmark, single nickel salt: 30-40g; Rose vitriol: 5-15g; Sodium hypophosphite 20-30g; Trisodium Citrate 40-50g; Boric acid 15-25g; ZE brightening agent 20-40g; The amount of each component can expand in proportion or dwindle.
6. a nickel plating cobalt nano superhard coating high pressure spray nozzle, is characterized in that, the coating that adopts chemical treatment technology plating one deck to have nickel plating cobalt nano superhard masking liquid to make at the surfaces externally and internally of the metallurgy sintered high pressure spray nozzle forming of tungsten-carbide powder.
7. a kind of nickel plating cobalt nano superhard coating high pressure spray nozzle according to claim 5, is characterized in that, its manufacturing process is: nozzle is placed in masking liquid, is added to 80-90 degree, be incubated and make above for 2 hours.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410388354.8A CN104131274A (en) | 2014-08-08 | 2014-08-08 | Nickel-cobalt-plated nanometer superhard coating liquid and high-pressure nozzle covering coating liquid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410388354.8A CN104131274A (en) | 2014-08-08 | 2014-08-08 | Nickel-cobalt-plated nanometer superhard coating liquid and high-pressure nozzle covering coating liquid |
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| CN104131274A true CN104131274A (en) | 2014-11-05 |
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| CN201410388354.8A Pending CN104131274A (en) | 2014-08-08 | 2014-08-08 | Nickel-cobalt-plated nanometer superhard coating liquid and high-pressure nozzle covering coating liquid |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104999077A (en) * | 2015-08-05 | 2015-10-28 | 北京科技大学 | Composite powder for high gravity alloy and preparation method thereof |
| CN109351549A (en) * | 2018-09-04 | 2019-02-19 | 深圳市中美欧光电科技有限公司 | Glue dripping head, spot gluing equipment and Glue dripping head processing technology |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1661131A (en) * | 2004-11-22 | 2005-08-31 | 武汉理工大学 | Plating liquid for nickel-titanium alloy to coat nickel, cobalt and tungsten through chemical technology and technique method |
| CN1680622A (en) * | 2005-01-31 | 2005-10-12 | 武汉理工大学 | Liquid and method for chemically plating chemical-carried Ni-Co-W film on Ni-Ti alloy |
| CN102373494A (en) * | 2010-08-13 | 2012-03-14 | 深圳市常兴金刚石磨具有限公司 | Composite plating method of superhard material alloy |
| CN203420639U (en) * | 2012-12-17 | 2014-02-05 | 兰文卿 | Coated nozzle |
-
2014
- 2014-08-08 CN CN201410388354.8A patent/CN104131274A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1661131A (en) * | 2004-11-22 | 2005-08-31 | 武汉理工大学 | Plating liquid for nickel-titanium alloy to coat nickel, cobalt and tungsten through chemical technology and technique method |
| CN1680622A (en) * | 2005-01-31 | 2005-10-12 | 武汉理工大学 | Liquid and method for chemically plating chemical-carried Ni-Co-W film on Ni-Ti alloy |
| CN102373494A (en) * | 2010-08-13 | 2012-03-14 | 深圳市常兴金刚石磨具有限公司 | Composite plating method of superhard material alloy |
| CN203420639U (en) * | 2012-12-17 | 2014-02-05 | 兰文卿 | Coated nozzle |
Non-Patent Citations (1)
| Title |
|---|
| 孙华等: "化学镀Ni－Co－P工艺配方优化", 《宇航材料工艺》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104999077A (en) * | 2015-08-05 | 2015-10-28 | 北京科技大学 | Composite powder for high gravity alloy and preparation method thereof |
| CN109351549A (en) * | 2018-09-04 | 2019-02-19 | 深圳市中美欧光电科技有限公司 | Glue dripping head, spot gluing equipment and Glue dripping head processing technology |
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Application publication date: 20141105 |