CN102154617A - Cold rolled low-carbon steel surface silicon infiltration alloying method - Google Patents
Cold rolled low-carbon steel surface silicon infiltration alloying method Download PDFInfo
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- CN102154617A CN102154617A CN2011100752122A CN201110075212A CN102154617A CN 102154617 A CN102154617 A CN 102154617A CN 2011100752122 A CN2011100752122 A CN 2011100752122A CN 201110075212 A CN201110075212 A CN 201110075212A CN 102154617 A CN102154617 A CN 102154617A
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Abstract
The invention relates to a cold rolled low-carbon steel surface silicon infiltration alloying method. The method comprises that: high-purity silicon (with purity of more than or equal to 99.9 percent) is evaporated on the cold rolled low-carbon steel surface in a vacuum plating instrument, and the silicon is uniformly infiltrated to the low-carbon steel surface under a high-temperature environment by using hydrogen atmosphere, so that the silicon content of the surface reaches 1 to 2.8 percent, and the purposes of improving the surface hardness and the corrosion resistance of the low-carbon steel by simple processes are fulfilled. The hardness and the corrosion resistance of the treated test sample are greatly improved by testing.
Description
Technical field
The present invention relates to steel surface siliconising alloying technology method, belong to a kind of novel alloying surface of low-carbon steel technical field.
Background technology
Development along with science and technology society, many novel substances, novel material have obtained finding in producing, living and have used, but metal---as a kind of indispensable resource, in modern manufacturing industry and structure design, remain and can't replace, extremely important status is arranged.The overall characteristic of material comprises intensity, workability, operability, cost and reuse, with regard to metal, make it all reach above-mentioned every performance index satisfactorily, and more and more difficult, limitation is a lot of.With regard to its protection against corrosion and covering with paint aspect, paint is just being undertaken important role.And the purpose of metal preparation, nothing more than preventing that burn into from improving PASS, improve lubrication state and changing electrical characteristic etc.In order to achieve the above object, need to improve the characteristic of metallic surface.In metal finishing, its pre-treatment is a most key step, relates to suitable wide technical.
The main method of current metallic substance protection has: close and protect, as japanning, phosphatization, by form the purpose that layer protecting film plays secluding air in the metallic surface; Negative electrode anodic protection as electrodeposited chromium or zinc, by at the easier oxidized or more difficult oxidized metal of metallic surface plating one deck, makes it to slow down the oxidation rate to matrix metal.Metallic corrosion generally occurs in the metallic surface, therefore, handles by conventional soft steel cheaply being carried out surface alloying, makes its condition of surface reach even be higher than the performance of special steel, is a kind of simple treatment process.And this method also will reduce cost greatly.Therefore, surface alloying is the focus that research steel protection treatment technology is paid close attention to.
At present, metal surface alloyization can be classified as follows by the realization means: 1, and the alloying constituent of change metallic surface.Mainly contain heat expand ooze, plating etc.; 2, the metallic surface soverlay technique.Mainly contain precision surface metallurgy (ion metallurgy), coatingsurface metallurgy, film surface metallurgy etc.; 3, improve the metallographic structure of metallic surface, textura epidermoidea is strengthened, comprise the surface treatment of high-energy-densities such as induction quenching, electron beam, laser.The research of a lot of this respects is arranged at present both at home and abroad.For example, to have introduced a kind of be the method for laser surface alloying railway rail to Chinese patent 01201956.9.This method is the alloying material formation laser alloy layer by laser beam molten steel track surface base material and interpolation.The result shows that laser alloying railway rail wear resistance and toughness are all excellent.Chinese patent 00121473.X has introduced a kind of weaving steel heald with alloy surface and production method thereof, and combining surface alloying layer with Weaving steel is bearing surface, has improved the work-ing life that steel is combined.Chinese patent 200610107395.0 has proposed a kind of Medium Manganese Steel alloying treatment method for surface, thereby improves the purpose of the initial wear resistance of Medium Manganese Steel by control Medium Manganese Steel component content and melting technology.Chinese patent 00119495.X has introduced a kind of process for alloying surface of low-carbon steel, by at a prefabricated one deck of surface of low-carbon steel flash method or a multiple layer corrosion resistant metal nickel, and cobalt, chromium carries out Alloying Treatment at alloying furnace then.Thereby realize big part metal is carried out batch processing and serialization industrial production.Chinese patent 97194171.8 has been introduced the superalloy of surface alloying, and a kind of the have silicon of being rich in and nickel diffusion protective layer are provided.Chinese patent 01810058.9 has been introduced the superalloy of surface alloying; a kind of alloying parts are provided; the diffusion impervious layer that comprises base alloy and enrichment silicon and chromium is in the additional chromic oxide or the aluminum oxide protectiveness oxide skin of parts outmost surface generation of surface alloying.Chinese patent 96217077 has been introduced the anti-acid corrosion siliconising steel pipe that boils by force of high rigidity, its siliconising steel pipe high rigidity, the anti-acid corrosion of boiling by force, resistance to wear, over-all properties such as high-temperature oxidation resistant is than high several times to tens times of 1Cr18Ni9Ti steel, titanium alloy.
Summary of the invention
The processing method that the purpose of this invention is to provide the surperficial siliconising alloying of a kind of cold-rolled low carbon steel.
Method is characterised in that to have following process and step:
A. at first that common cold-rolled low carbon steel surface finish is smooth, and, keep carrying out in 5-20 hour ageing treatment, the tissue of steel sheet and size at 100-150 ℃.
B. ball milling is good nano silicone iron powder is coated to surface of low-carbon steel, and cover thickness is 10 μ m ~ 100 μ m.
The steel plate that c. will cover the Si nanometer layer places in the hydrogen atmosphere stove, and temperature rise rate is controlled at 10-20 ℃/min and is warming up to 400-1000 ℃ under hydrogen atmosphere, and soaking time is 2-6h, and furnace cooling finally obtains the siliconising alloying layer.
Advantage of the present invention is simple for process.By in surface of steel plate simple substance Si nanometer layer, reduce heat and ooze temperature, under hydrogen divided, hot environment was infiltrated the cold-rolled low carbon steel surface uniformly in the time of high reactivity Siliciumatom utilization reduction; Simultaneously the purpose that nanometer layer thickness reaches the control surface silicone content be can control, cold-rolled low carbon steel surface hardness and corrosion resistance nature thereof improved greatly.
Embodiment
Now specific embodiments of the invention are described below:
Embodiment one
1. at first that the ordinary low-carbon steel surface finish is smooth, and, keep carrying out in 8 hours ageing treatment, the tissue of steel sheet and size at 150 ℃.
2. the nano silicone iron powder that ball milling is good is coated to surface of low-carbon steel, and cover thickness is 32 μ m.
3. the steel plate that will cover nanometer layer places in the hydrogen atmosphere stove.Temperature rise rate is controlled at 15 ℃/min and is warming up to 400 ℃ under hydrogen atmosphere, and soaking time is 4h, furnace cooling.
Steel plate after will handling then carries out the Vickers' hardness test and surveys its corrosive nature by the Ta Feier test.
Embodiment two
1. at first that the ordinary low-carbon steel surface finish is smooth, and, keep carrying out in 8 hours ageing treatment, the tissue of steel sheet and size at 150 ℃.
2. the nano silicone iron powder that ball milling is good is coated to surface of low-carbon steel, and cover thickness is 56 μ m.
3. the steel plate that will cover nanometer layer places in the hydrogen atmosphere stove.Temperature rise rate is controlled at 15 ℃/min and is warming up to 700 ℃ under hydrogen atmosphere, and soaking time is 4h, furnace cooling.
Steel plate after will handling then carries out the Vickers' hardness test and surveys its corrosive nature by the Ta Feier test.
Embodiment three:
1. at first that the ordinary low-carbon steel surface finish is smooth, and, keep carrying out in 8 hours ageing treatment, the tissue of steel sheet and size at 150 ℃.
2. the nano silicone iron powder that ball milling is good is coated to surface of low-carbon steel, and cover thickness is 94 μ m.
3. the steel plate that will cover nanometer layer places in the hydrogen atmosphere stove.Temperature rise rate is controlled at 15 ℃/min and is warming up to 1000 ℃ under hydrogen atmosphere, and soaking time is 4h, furnace cooling.
Steel plate after will handling then carries out the Vickers' hardness test and surveys its corrosive nature by the Ta Feier test.
Embodiment four:
1. at first that the ordinary low-carbon steel surface finish is smooth, and, keep carrying out in 8 hours ageing treatment, the tissue of steel sheet and size at 150 ℃.
2. the nano silicone iron powder that ball milling is good is coated to surface of low-carbon steel, and cover thickness is 22 μ m.
3. the steel plate that will cover nanometer layer places in the hydrogen atmosphere stove.Temperature rise rate is controlled at 15 ℃/min and is warming up to 700 ℃ under hydrogen atmosphere, and soaking time is 4h, furnace cooling.
Steel plate after will handling then carries out the Vickers' hardness test and surveys its corrosive nature by the Ta Feier test.
Embodiment five:
1. at first that the ordinary low-carbon steel surface finish is smooth, and, keep carrying out in 8 hours ageing treatment, the tissue of steel sheet and size at 150 ℃.
2. the nano silicone iron powder that ball milling is good is coated to surface of low-carbon steel, and cover thickness is 58 μ m.
3. the steel plate that will cover nanometer layer places in the hydrogen atmosphere stove.Temperature rise rate is controlled at 15 ℃/min and is warming up to 700 ℃ under hydrogen atmosphere, and soaking time is 2h, furnace cooling.
Steel plate after will handling then carries out the Vickers' hardness test and surveys its corrosive nature by the Ta Feier test.
Embodiment six:
1. at first that the ordinary low-carbon steel surface finish is smooth, and, keep carrying out in 8 hours ageing treatment, the tissue of steel sheet and size at 150 ℃.
2. the nano silicone iron powder that ball milling is good is coated to surface of low-carbon steel, and cover thickness is 53 μ m.。
3. the steel plate that will cover nanometer layer places in the hydrogen atmosphere stove.Temperature rise rate is controlled at 15 ℃/min and is warming up to 700 ℃ under hydrogen atmosphere, and soaking time is 6h, furnace cooling.
Steel plate after will handling then carries out the Vickers' hardness test and surveys its corrosive nature by the Ta Feier test.Embodiment the webster hardness of sample and the Ta Feier test relatively see the following form 1.
Table 1 records the Vickers' hardness of embodiment all samples, and the Ta Feier test relatively
By last table 1 as can be known, by HIGH-PURITY SILICON (〉 99.9%) vacuum evaporation is to surface of low-carbon steel, the solidity to corrosion of the cold-rolled low carbon steel after Overheating Treatment and hardness all improve greatly.
Claims (1)
1. the processing method of cold-rolled low carbon steel surface siliconising alloying is characterized in that having following process and step:
A. at first that common cold-rolled low carbon steel surface finish is smooth, and, keep carrying out in 5-20 hour ageing treatment, the tissue of steel sheet and size at 100-150 ℃;
B. sample is put into vacuum coater, HIGH-PURITY SILICON (〉=99.9%) simple substance is plated on the sample, thickness of coating is 10 μ m ~ 100 μ m;
The steel plate that c. will cover the Si nanometer layer places in the hydrogen atmosphere stove; Temperature rise rate is controlled at 10-20 ℃/min and is warming up to 400-1000 ℃ under hydrogen atmosphere, and soaking time is 2-6h, and furnace cooling finally obtains the siliconising alloying layer.
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| CN2011100752122A CN102154617A (en) | 2011-03-28 | 2011-03-28 | Cold rolled low-carbon steel surface silicon infiltration alloying method |
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| CN2011100752122A CN102154617A (en) | 2011-03-28 | 2011-03-28 | Cold rolled low-carbon steel surface silicon infiltration alloying method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102864449A (en) * | 2012-09-28 | 2013-01-09 | 上海大学 | Method for alloying surface of aluminum based on nano technology |
| CN102864415A (en) * | 2012-09-28 | 2013-01-09 | 上海大学 | Ferro-aluminum alloying technique based on vacuum evaporation method |
| CN102994944A (en) * | 2012-12-06 | 2013-03-27 | 上海大学 | Process method for alloying on low-carbon steel surface by employing ferrosilicon powder |
| CN103540932A (en) * | 2013-10-11 | 2014-01-29 | 上海大学 | Method for preparing copper-zinc alloy layer on surface of low-carbon steel |
| CN108263302A (en) * | 2017-12-18 | 2018-07-10 | 合肥亿恒智能科技股份有限公司 | A kind of vehicle complete vehicle controller lower carriage |
| CN114535591A (en) * | 2022-02-25 | 2022-05-27 | 安徽工业大学 | Method for preparing alloy powder based on surface nanocrystallization treatment |
-
2011
- 2011-03-28 CN CN2011100752122A patent/CN102154617A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102864449A (en) * | 2012-09-28 | 2013-01-09 | 上海大学 | Method for alloying surface of aluminum based on nano technology |
| CN102864415A (en) * | 2012-09-28 | 2013-01-09 | 上海大学 | Ferro-aluminum alloying technique based on vacuum evaporation method |
| CN102994944A (en) * | 2012-12-06 | 2013-03-27 | 上海大学 | Process method for alloying on low-carbon steel surface by employing ferrosilicon powder |
| CN103540932A (en) * | 2013-10-11 | 2014-01-29 | 上海大学 | Method for preparing copper-zinc alloy layer on surface of low-carbon steel |
| CN108263302A (en) * | 2017-12-18 | 2018-07-10 | 合肥亿恒智能科技股份有限公司 | A kind of vehicle complete vehicle controller lower carriage |
| CN114535591A (en) * | 2022-02-25 | 2022-05-27 | 安徽工业大学 | Method for preparing alloy powder based on surface nanocrystallization treatment |
| CN114535591B (en) * | 2022-02-25 | 2024-03-12 | 安徽工业大学 | Method for preparing alloy powder based on surface nanocrystallization treatment |
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Application publication date: 20110817 |