CN1049015C - High-sulfur alloy steel and its preparation - Google Patents
High-sulfur alloy steel and its preparation Download PDFInfo
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- CN1049015C CN1049015C CN 91108671 CN91108671A CN1049015C CN 1049015 C CN1049015 C CN 1049015C CN 91108671 CN91108671 CN 91108671 CN 91108671 A CN91108671 A CN 91108671A CN 1049015 C CN1049015 C CN 1049015C
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- sulfur
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- alloy
- alloy steel
- sulphur
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- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The present invention relates to high-sulfur alloy steel and a production method thereof. Sulfur-ferrum containing 30% to 32% of sulfur is used as main materials, scrap steel and needed alloy elements are added by an arc furnace, and the sulfur-ferrum is added at the temperature of 1600 to 1650 DEG C, deoxidizers are added finally, and the high-sulfur alloy steel is produced after tranquilization. The sulfur content in the high-sulfur alloy steel is from 0.5 to 11%, and the wearproof performance of the high-sulfur alloy steel is increased. The high-sulfur alloy steel can replace wearproof products (bearing shells, worm wheels, sliding blocks, etc. of various machines) of steel, ferrum, copper and copper alloy and can extend the service life of the products.
Description
The invention belongs to metallurgical industry field, relate to high-sulfur alloy steel and production method.
In Iron and Steel Production, element sulphur is considered to harmful element that do not have always, and sulphur content is judged to waste product above 0.1% ferrous materials always, without any practical value.In order to improve the performance of steel, people are the hammer away desulphurization technological process always, and includes the in addition strict control of worldwide steel standard in.For the wear resisting property that obtains, people often adopt the method that adds Ni, Cr, Mo, W, V, Ti and rare earth alloy in steel, and a large amount of high-sulfur iron can not use, and a large amount of ferro-sulphur ores is difficult to utilize.
The object of the present invention is to provide a kind of method, produce high sulfur content, steel grade that wear resistance is high with the high new steel grade of high-sulfur iron production wear resistance.
The present invention realizes by following method: produce the high-sulfur alloy steel of being made up of iron, carbon, sulphur and alloying element, wherein sulphur content is 0.5～11%.Producing the method for high-sulfur alloy steel, is main raw material with the sulphur iron of sulfur-bearing 30～32%, uses electric arc furnace smelting, add steel scrap and required alloying element earlier, send electrofusion, add sulphur iron in the time of 1600～1650 ℃, add the reductor deoxidation at last, the tapping of calm back, making its sulphur content is 0.5～11%.
Production method of the present invention is produced the new steel grade of high-sulfur alloy steel, and the content of sulphur is brought up to 0.5～11%, has broken through " forbidden zone " that traditional theory delimited.Sulphur content was at 0.5～11% o'clock in the ferrous materials, sulphur becomes beneficial element and composition extremely main and that have extensive practical value on the contrary, reality has had solid lubricant in steel, the wear resistance of steel is greatly improved, this steel has passed through industrial experiment, proves the optimal high-abrasive material of all mechanical transmissions such as being applied to metallurgy, mine, the various mechanical industries of military project, automobile, tractor, motorcycle, bicycle trade, household electrical appliance, engine.Its sulphur content on average improves 50～100 times than general steel, and wear resisting property improves more than 10 times, and its principle is to have reduced the friction wear coefficient of parts, thereby has prolonged work-ing life.
The invention will be further described below in conjunction with embodiment.
Embodiment one, employing 50kg small test electric arc furnace smelting MoS
2Steel.Furnace charge ratio: general carbon steel scrap 40kg, sulphur iron 15～16kg, molybdenum alloy 3～5kg and suitable auxiliary material.Add steel scrap, molybdenum alloy earlier, send electrofusion, add sulphur iron in the time of 1600～1650 ℃, grasp tap to tap time, add Al-Si, the deoxidation of Si-Ca alloy at last, the tapping of calm back according to the working of a furnace.
Embodiment two, smelting WS
2Steel.Except that molybdenum alloy is changed into the tungstenalloy, other material than the working of a furnace all with embodiment one.
Embodiment three, MnS smelting steel.Except that molybdenum alloy is changed into the manganese alloy, other material ratio, the working of a furnace are all with embodiment one.
Also can produce pbs steel, high-sulfur Series Steel 1～10# according to similar method.Can be divided into carbon in high sulfur low carbon, the high-sulfur, high-sulfur high-carbon three classes by purposes, also can produce low-carbon and low-alloy.Middle carbon interalloy, high-carbon high-alloy series alloy steel.
Smelt the MoS that with embodiment one
2Steel is an example, and is on probation on the 1.2m of the iron and steel branch department thin sheet mill of Anyang, in average 5～7 days of former ampco bearing shell life-span, uses MoS
2Mean lifetime reaches 34.1 days behind the steel bearing shell, improves more originally more than 5～7 times, uses the economic benefit of wound more than 4 years more than 1,000 ten thousand yuan.Be used for big watt of 195 Diesel Engine Crankshaft and go up the use evaluation, 1500 hours this watt GB life-spans, 800 hours practical lives, and use MoS
2The steel bearing is taken down detection after continuous 10000 hours (cutting off lubricating oil midway 2 hours), and axle and bearing bush abrasion tolerance all are 0, and machine power improves one horsepower, and noise reduces greatly, with a finger gently a commentaries on classics can start.Test on the lathe, removing son with kilogram upward is pressed on bearing shell on the axle to 11 kgfs, just the heating weldering was dead less than two minutes in ordinary steel watt running, brasses was just worn into the copper end in 3 minutes, steel of the present invention watt running also brought up to 1200 to rotating speed from 400 in 4 hours to be changeed, and rubescent up to the surface still do not have any wearing and tearing and weld scuffing.Be used in Alloy instead of Copper roller slide block on the spinning frame, the life-span improves more than 5 times.
Steel grade of the present invention mainly will replace the spare parts (bearing shell of the machine that makes preparations for sowing, worm gear, slide block etc.) of steel, iron, copper and alloy thereof, big of abrasion-resistant cast product and exhausted big portion now use material, for improving the quality, the developing new way that increases the service life also will make the abundant ferro-sulphur ore of China's reserves be able to development and utilization.
Claims (3)
1, a kind of high-sulfur alloy steel of being made up of iron, carbon, sulphur and alloying element is characterized in that wherein sulphur content is 0.5～11%.
2, a kind of method of producing high-sulfur alloy steel, it is characterized in that the sulphur iron with sulfur-bearing 30～32% is main raw material, use electric arc furnace smelting, add steel scrap and required alloying element earlier, send electrofusion, add sulphur iron in the time of 1600～1650 ℃, add the reductor deoxidation at last, the tapping of calm back, making its sulphur content is 0.5～11%.
3, method according to claim 2 is characterized in that the alloying element that is added can be respectively molybdenum alloy, tungstenalloy, manganese alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91108671 CN1049015C (en) | 1991-09-09 | 1991-09-09 | High-sulfur alloy steel and its preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91108671 CN1049015C (en) | 1991-09-09 | 1991-09-09 | High-sulfur alloy steel and its preparation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1068858A CN1068858A (en) | 1993-02-10 |
| CN1049015C true CN1049015C (en) | 2000-02-02 |
Family
ID=4909410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91108671 Expired - Fee Related CN1049015C (en) | 1991-09-09 | 1991-09-09 | High-sulfur alloy steel and its preparation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1049015C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100572581C (en) * | 2007-10-11 | 2009-12-23 | 钢铁研究总院 | A kind of sulfur-iron alloy and its production and application |
| CN102154534B (en) * | 2010-03-30 | 2014-05-28 | 吴海涛 | Arc furnace smelting high-sulfur alloy steel and preparation method thereof |
| JP6848369B2 (en) * | 2015-11-27 | 2021-03-24 | 日本製鉄株式会社 | Sulfur-added raw material to molten steel and manufacturing method of sulfur-added steel |
| CN110616385A (en) * | 2018-06-20 | 2019-12-27 | 无锡市东明冠特种金属制造有限公司 | Wear-resistant and heat-resistant steel and preparation method thereof |
-
1991
- 1991-09-09 CN CN 91108671 patent/CN1049015C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1068858A (en) | 1993-02-10 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20000202 Termination date: 20100909 |