CN1032658C - Wear-resistant corrosion-resistant non-magnetic steel - Google Patents
Wear-resistant corrosion-resistant non-magnetic steel Download PDFInfo
- Publication number
- CN1032658C CN1032658C CN 93111094 CN93111094A CN1032658C CN 1032658 C CN1032658 C CN 1032658C CN 93111094 CN93111094 CN 93111094 CN 93111094 A CN93111094 A CN 93111094A CN 1032658 C CN1032658 C CN 1032658C
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- CN
- China
- Prior art keywords
- steel
- resistant
- corrosion
- wear
- lining
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 36
- 239000010959 steel Substances 0.000 title claims abstract description 36
- 238000005260 corrosion Methods 0.000 title claims abstract description 20
- 230000007797 corrosion Effects 0.000 title claims abstract description 18
- 239000000203 mixture Substances 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 3
- 229910001566 austenite Inorganic materials 0.000 abstract description 4
- 238000005266 casting Methods 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 230000035699 permeability Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
A wear-resistant corrosion-resistant non-magnetic steel is suitable for ball mill lining plates and other occasions requiring wear resistance, corrosion resistance and non-magnetic conductivity. The steel uses P as a key element and adds certain amounts of Mn, Cr and Al. It can be smelted in converter, electric furnace and open hearth furnace, and can implement single austenite metallographic structure after heat treatment by adopting casting forming process, and its magnetic permeability mu is only about 1.0020 Gs/Oe. The steel is used on the lining of the ball mill, so that the service life of the lining can reach 5-7 years, which is 5-7 times of the service life of a common heavy rail steel lining plate.
Description
The present invention relates to a kind of wear and corrosion-resistant non-magnetic steel, belong to the metallic substance technical field.Be applicable to that ball mill and other require wear resistant corrosion resistant and non-magnetic occasion.
Before the present invention makes, impact, wearing and tearing, corrosion and not the magnetic conduction occasion still do not have ripe steel grade with steel.Steel for ball mill lining Working environment and performance requriements are very harsh, use the heavy rail steel bar to substitute because of can not find suitable material over a long time, extremely lack work-ing life (generally at 7～16 months).Japanese Patent clear 58-197256 proposes a kind of atmospheric corrosion resistance and the good high Mn steel of high tenacity of resistance to rust, and its one-tenth is grouped into and is, C:0.10～1.00%; Mn:16～35%; Si:0.20～3.00%; Cr:0.50～18.00%; Al:0.01～7.00%; Cu:0.01～2.00%; N :≤0.3%.This steel carries out strictness control to P as impurity, so its obdurability solidity to corrosion can not show fully that still range of application also is restricted.
Purpose of the present invention proposes the anti-corrosion nonmagnetic steel of a kind of corrosion resistant exactly, to solve in impact, wearing and tearing, corrosion and to need the not steel problem of magnetic conduction occasion.
Wear and corrosion-resistant non-magnetic steel of the present invention, its composition weight percent composition is C:0.35～1.50%; Mn:13～35%; Cr:5～11%; Al:0.5～9%; P:0.1～1.5%; Si:0.1～2%, all the other are Fe and unavoidable impurities.C wherein is the effective element that improves steel intensity and wear resistance, and can enlarge γ-phase region and improve hardening capacity.Mn is the effective element of formation and stable austenite, and it also can improve the obdurability of steel simultaneously.Cr can make steel produce passivation phenomenon, obviously improves the resistance of oxidation of steel, strengthens corrosion stability, also is the effective element that improves physical strength and wear resistance.Al can reduce the coercive force of steel, and a certain amount of Al also can make steel produce passivation phenomenon, improves the corrosion stability of steel in oxidizing acid, to increase the anti-corrosion capability of steel.P is the key element in the steel grade of the present invention, and it can not only improve the corrosion stability of steel effectively, and can strengthen molten steel flow, is suitable for molten steel agglomeration moulding.Si can improve the acid corrosion-resistant performance of steel and improve the competency of steel.
Wear and corrosion-resistant non-magnetic steel of the present invention can be smelted in converter, electric furnace and open hearth, and adopts the casting moulding, teeming temperature t 〉=1580 ℃, need after the moulding to heat-treat in 1050～1150 ℃ of temperature, the steel perlite after the processing disappears, and becomes not magnetic conduction tissue of single austenite.
Erosion resistant nonmagnetic steel embodiment composition weight percent composition of the present invention is C:0.62%; Mn:18.79%; Cr:4.67%; Al:0.89%; P:0.69%; Si:0.24%, casting and after heat treatment, its metallographic of microscopic examination becomes single austenite structure, magnetic permeability mu=1.0020Gs/Oe.This casting sheet material is used on China's certain mine ball mill liner of the north, in weak acidic medium, overwhelm and collide and friction, check that after the use in 2.5 years the amount of deteriorating is extremely slight, estimation can be used more than 5～7 years, was 5～7 times of heavy rail bar steel (former ball mill liner with heavy rail bar steel) work-ing life.
Claims (1)
1. a wear and corrosion-resistant non-magnetic steel is characterized in that its heavy per-cent composition of composition is: C:0.35～1.50%; Mn:13～35%; Cr:5～11%; Al:0.5～9%; P:0.1～1.5%; Si:0.1～2%, all the other are Fe and unavoidable impurities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93111094 CN1032658C (en) | 1993-04-29 | 1993-04-29 | Wear-resistant corrosion-resistant non-magnetic steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93111094 CN1032658C (en) | 1993-04-29 | 1993-04-29 | Wear-resistant corrosion-resistant non-magnetic steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1094453A CN1094453A (en) | 1994-11-02 |
| CN1032658C true CN1032658C (en) | 1996-08-28 |
Family
ID=4988900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93111094 Expired - Fee Related CN1032658C (en) | 1993-04-29 | 1993-04-29 | Wear-resistant corrosion-resistant non-magnetic steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1032658C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392111C (en) * | 2003-10-27 | 2008-06-04 | 宝山钢铁股份有限公司 | Method for manufacturing tool die steel plate produced by converter |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103114246A (en) * | 2011-11-16 | 2013-05-22 | 范黔伟 | High manganese and high chromium alloy cast steel ZGMn13Cr10 and its production method |
| WO2014133058A1 (en) * | 2013-02-28 | 2014-09-04 | 日新製鋼株式会社 | Austenitic stainless-steel sheet and process for producing high-elastic-limit nonmagnetic steel material therefrom |
| CN108118259A (en) * | 2017-10-31 | 2018-06-05 | 宁波百瑞天然气高压压缩机有限公司 | A kind of Wear-resisting plunger and preparation method thereof |
-
1993
- 1993-04-29 CN CN 93111094 patent/CN1032658C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392111C (en) * | 2003-10-27 | 2008-06-04 | 宝山钢铁股份有限公司 | Method for manufacturing tool die steel plate produced by converter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1094453A (en) | 1994-11-02 |
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| CF01 | Termination of patent right due to non-payment of annual fee |