CN104005018A - Wear-resistant coating process applicable to surfaces of highly wear-resistant and fire-proof material dies - Google Patents
Wear-resistant coating process applicable to surfaces of highly wear-resistant and fire-proof material dies Download PDFInfo
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- CN104005018A CN104005018A CN201410232879.2A CN201410232879A CN104005018A CN 104005018 A CN104005018 A CN 104005018A CN 201410232879 A CN201410232879 A CN 201410232879A CN 104005018 A CN104005018 A CN 104005018A
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Abstract
The invention relates to a wear-resistant coating process applicable to surfaces of highly wear-resistant and fire-proof material dies. The process comprises the steps of pre-processing surfaces of the dies, coarsening the surfaces of the dies, spraying powder and slowly cooling. The product obtained by the process is long in service life and high in yield. By virtue of the process, the effective working time of the machine can be improved and the yield can be effectively improved.
Description
Technical field
The invention belongs to technical field of refractory materials, be specifically related to the wear-resistant coating process on a kind of wear-resisting refractory-material dies surface.
Background technology
Refractory-material dies in use, owing to being subject to serious abrasive wear and repeated wall pressure, cause die life short, dislike working conditions slightly, require the coating hardness of die surface more than HRC60, mould also must possess higher intensity simultaneously.
In order to improve the work-ing life of refractory-material dies, people have carried out a large amount of research work, generally adopting soft steel quenching mould, on the basis of modified cast iron mould, and then do refractory-material dies with rich chromium cast iron, high-chromium alloy direct quenching, what also have both at home and abroad pastes one deck Wimet or Steel Bond Hard Alloy sheet at refractory surface, though the latter can increase substantially the refractory-material dies life-span, but because of processing or forging molding difficulty and high in cost of production reason, only be applicable to doing the general bricks die of mark of some simple shape, in addition easily crisp, be difficult for promoting.
Summary of the invention
The object of the present invention is to provide the wear-resistant coating process on a kind of wear-resisting refractory-material dies surface, adopt refractory-material dies surface that this technique is produced to there is the premium propertiess such as wear-resisting, corrosion-resistant, long service life.
To achieve these goals, the present invention is by the following technical solutions:
The wear-resistant coating process on wear-resisting refractory-material dies surface, comprises the steps:
(1) die surface pre-treatment: first, with gasoline or washing composition clean surface greasy dirt, then adopt grinder buffing mode to remove surperficial oxide compound or fatigue layer;
(2) surface coarsening: roughening treatment is carried out on the surface that adopts white fused alumina emery wheel that step (1) is obtained, and obtains surface roughness Ra 1.2～2.6 μ m of die surface.
(3) dust: use supersonic spray coating technology specifically to adopt two-dimentional upside-down mounting Robot actions, with aviation kerosene, make thermal source, purity is that 99.9% nitrogen is as protection gas, purity be 99.9% oxygen for Indoor Combustion fuel as the power of carrying spraying with powdered alloy, the die surface that aligning was processed through step (2) after flame, air-flow, the adjusting of powder amount is suitable sprays; Described velocity of sound >2000m/s, described spraying temperature >3000 ℃;
(4) slow cooling: step (3) is sprayed to complete mould naturally cool to room temperature under air.
By percentage to the quality, described wear-resistant coating process, the powdered alloy described in step (3) comprises that 70～90% granularities are that 300 object tungsten powders and 10～30% granularities are 300 object cobalt powders.
By percentage to the quality, described wear-resistant coating process, the powdered alloy described in step (3) comprises that 70～90% granularities are that 300 object tungsten powders, 5～15% granularities are that 300 object cobalt powders and 5～15% granularities are 300 object nickel powders.
By percentage to the quality, described wear-resistant coating process, the powdered alloy described in step (3) comprises that 70～90% granularities are that 300 object tungsten powders, 5～15% granularities are that 300 object cobalt powders and 5～15% granularities are 300 object zirconium powders.
Described mould surface spraying thickness is 0.25～0.4mm.
Described mould surface spraying area adopts computer to carry out two-dimensional operation control.
the present invention's beneficial effect is compared with prior art:
1, long service life: utilize the refractory-material dies that the present invention obtains to there is high-wearing feature, compare and can improve 20～30 times of work-ing lifes with the refractory-material dies of selling in the market.
2, improve the quality of products: utilize the refractory-material dies that the present invention obtains to there is good machining property, so make quality better.
3, output is high: because the mould that uses this invention to obtain has reduced the more number of times of mold exchange, the operational use time of having improved machine, can effectively improve output.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but do not limit content of the present invention.
embodiment 1
The wear-resistant coating process on wear-resisting refractory-material dies surface, comprises the steps:
(1) die surface pre-treatment: first, with gasoline or washing composition clean surface greasy dirt, then adopt grinder buffing mode to remove surperficial oxide compound or fatigue layer;
(2) surface coarsening: roughening treatment is carried out on the surface that adopts white fused alumina emery wheel that step (1) is obtained, and obtains the surface roughness Ra 1.5 μ m of die surface;
(3) dust: use supersonic spray coating technology specifically to adopt two-dimentional upside-down mounting Robot actions, with aviation kerosene, make thermal source, purity is that 99.9% nitrogen is as protection gas, purity be 99.9% oxygen for Indoor Combustion fuel as the power of carrying spraying with powdered alloy, the die surface that aligning was processed through step (2) after flame, air-flow, the adjusting of powder amount is suitable sprays; Described velocity of sound >2000m/s, described spraying temperature >3000 ℃; Described powdered alloy comprises that 70% granularity is that 300 object tungsten powders and 30% granularity are 300 object cobalt powders; Described mould surface spraying thickness is 0.25mm;
(4) slow cooling: step (3) is sprayed to complete mould naturally cool to room temperature under air.
embodiment 2
The present embodiment and embodiment 1 something in common no longer repeat, and difference is that the described powdered alloy of step (3) comprises that 80% granularity is that 300 object tungsten powders and 20% granularity are 300 object cobalt powders.
embodiment 3
The present embodiment and embodiment 1 something in common no longer repeat, and difference is that the described powdered alloy of step (3) comprises that 90% granularity is that 300 object tungsten powders and 10% granularity are 300 object cobalt powders.
embodiment 4
The present embodiment and embodiment 1 something in common no longer repeat, and difference is that the powdered alloy described in step (3) step (3) comprises that 70% granularity is that 300 object tungsten powders, 15% granularity are that 300 object cobalt powders and 15% granularity are 300 object nickel powders.
embodiment 5
The present embodiment and embodiment 1 something in common no longer repeat, and difference is that the powdered alloy described in step (3) comprises that 80% granularity is that 300 object tungsten powders, 15% granularity are that 300 object cobalt powders and 5% granularity are 300 object nickel powders.
embodiment 6
The present embodiment and embodiment 1 something in common no longer repeat, and difference is that the powdered alloy described in step (3) comprises that 85% granularity is that 300 object tungsten powders, 10% granularity are that 300 object cobalt powders and 5% granularity are 300 object nickel powders.
embodiment 7
The present embodiment and embodiment 1 something in common no longer repeat, and difference is that the powdered alloy described in step (3) comprises that 85% granularity is that 300 object tungsten powders, 5% granularity are that 300 object cobalt powders and 10% granularity are 300 object nickel powders.
embodiment 8
The present embodiment and embodiment 1 something in common no longer repeat, and difference is that the powdered alloy described in step (3) comprises that 90% granularity is that 300 object tungsten powders, 5% granularity are that 300 object cobalt powders and 5% granularity are 300 object nickel powders.
embodiment 9
The present embodiment and embodiment 1 something in common no longer repeat, and difference is that the powdered alloy described in step (3) step (3) comprises that 70% granularity is that 300 object tungsten powders, 15% granularity are that 300 object cobalt powders and 15% granularity are 300 object zirconium powders.
embodiment 10
The present embodiment and embodiment 1 something in common no longer repeat, and difference is that the powdered alloy described in step (3) comprises that 80% granularity is that 300 object tungsten powders, 15% granularity are that 300 object cobalt powders and 5% granularity are 300 object zirconium powders.
embodiment 11
The present embodiment and embodiment 1 something in common no longer repeat, and difference is that the powdered alloy described in step (3) comprises that 85% granularity is that 300 object tungsten powders, 10% granularity are that 300 object cobalt powders and 5% granularity are 300 object zirconium powders.
embodiment 12
The present embodiment and embodiment 1 something in common no longer repeat, and difference is that the powdered alloy described in step (3) comprises that 85% granularity is that 300 object tungsten powders, 5% granularity are that 300 object cobalt powders and 10% granularity are 300 object zirconium powders.
embodiment 13
The present embodiment and embodiment 1 something in common no longer repeat, and difference is that the powdered alloy described in step (3) comprises that 90% granularity is that 300 object tungsten powders, 5% granularity are that 300 object cobalt powders and 5% granularity are 300 object zirconium powders.
Claims (6)
1. the wear-resistant coating process on wear-resisting refractory-material dies surface, is characterized in that comprising the steps:
(1) die surface pre-treatment: first, with gasoline or washing composition clean surface greasy dirt, then adopt grinder buffing mode to remove surperficial oxide compound or fatigue layer;
(2) surface coarsening: roughening treatment is carried out on the surface that adopts white fused alumina emery wheel that step (1) is obtained, and obtains surface roughness Ra 1.2～2.6 μ m of die surface;
(3) dust: use supersonic spray coating technology specifically to adopt two-dimentional upside-down mounting Robot actions, with aviation kerosene, make thermal source, purity is that 99.9% nitrogen is as protection gas, purity be 99.9% oxygen for Indoor Combustion fuel as the power of carrying spraying with powdered alloy, the die surface that aligning was processed through step (2) after flame, air-flow, the adjusting of powder amount is suitable sprays; Described velocity of sound >2000m/s, described spraying temperature >3000 ℃;
(4) slow cooling: step (3) is sprayed to complete mould naturally cool to room temperature under air.
2. wear-resistant coating process according to claim 1, is characterized in that, mass percent meter, and the powdered alloy described in step (3) comprises that 70～90% granularities are that 300 object tungsten powders and 10～30% granularities are 300 object cobalt powders.
3. wear-resistant coating process according to claim 1, it is characterized in that, mass percent meter, the powdered alloy described in step (3) comprises that 70～90% granularities are that 300 object tungsten powders, 5～15% granularities are that 300 object cobalt powders and 5～15% granularities are 300 object nickel powders.
4. wear-resistant coating process according to claim 1, it is characterized in that, mass percent meter, the powdered alloy described in step (3) comprises that 70～90% granularities are that 300 object tungsten powders, 5～15% granularities are that 300 object cobalt powders and 5～15% granularities are 300 object zirconium powders.
5. wear-resistant coating process according to claim 1, is characterized in that, described mould surface spraying thickness is 0.25～0.4mm.
6. wear-resistant coating process according to claim 1, is characterized in that, described mould surface spraying area adopts computer to carry out two-dimensional operation control.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410232879.2A CN104005018A (en) | 2014-05-29 | 2014-05-29 | Wear-resistant coating process applicable to surfaces of highly wear-resistant and fire-proof material dies |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410232879.2A CN104005018A (en) | 2014-05-29 | 2014-05-29 | Wear-resistant coating process applicable to surfaces of highly wear-resistant and fire-proof material dies |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110091419A (en) * | 2019-05-10 | 2019-08-06 | 德州章源喷涂技术有限公司 | Floor tile mold and method for spraying anti-abrasion layer on floor tile mold |
| CN110370688A (en) * | 2019-07-04 | 2019-10-25 | 广联航空工业股份有限公司 | Frame-type composite material shaping mould supersonic speed hot-spraying technique method for repairing and mending |
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| CN87102001A (en) * | 1987-03-20 | 1988-01-13 | 湖南省冶金材料研究所 | The technology of surface sculf-resistant coat spraying of refractory die sets |
| CN1048066A (en) * | 1989-06-16 | 1990-12-26 | 冶金工业部钢铁研究总院 | Novel tungsten alloy ball |
| US6503290B1 (en) * | 2002-03-01 | 2003-01-07 | Praxair S.T. Technology, Inc. | Corrosion resistant powder and coating |
| CN1908230A (en) * | 2006-08-23 | 2007-02-07 | 浙江工业大学 | Alloy coating technique for metallic screw assembly surface |
| CN102395701A (en) * | 2009-04-10 | 2012-03-28 | 圣戈班涂敷技术公司 | Production method with thermal projection of a target |
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Patent Citations (6)
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| CN87102001A (en) * | 1987-03-20 | 1988-01-13 | 湖南省冶金材料研究所 | The technology of surface sculf-resistant coat spraying of refractory die sets |
| CN1048066A (en) * | 1989-06-16 | 1990-12-26 | 冶金工业部钢铁研究总院 | Novel tungsten alloy ball |
| US6503290B1 (en) * | 2002-03-01 | 2003-01-07 | Praxair S.T. Technology, Inc. | Corrosion resistant powder and coating |
| CN1908230A (en) * | 2006-08-23 | 2007-02-07 | 浙江工业大学 | Alloy coating technique for metallic screw assembly surface |
| CN100462482C (en) * | 2006-08-23 | 2009-02-18 | 浙江工业大学 | Alloy coating technique for metallic screw assembly surface |
| CN102395701A (en) * | 2009-04-10 | 2012-03-28 | 圣戈班涂敷技术公司 | Production method with thermal projection of a target |
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| 丁彰雄，田野: "《船舶机械修理工艺学》", 28 February 2013, 武汉：武汉理工大学出版社 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110091419A (en) * | 2019-05-10 | 2019-08-06 | 德州章源喷涂技术有限公司 | Floor tile mold and method for spraying anti-abrasion layer on floor tile mold |
| CN110370688A (en) * | 2019-07-04 | 2019-10-25 | 广联航空工业股份有限公司 | Frame-type composite material shaping mould supersonic speed hot-spraying technique method for repairing and mending |
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Application publication date: 20140827 |