CN105886962A - High-strength and wear-resistant alloy steel for bucket teeth of coal cutter and preparation method of high-strength and wear-resistant alloy steel - Google Patents
High-strength and wear-resistant alloy steel for bucket teeth of coal cutter and preparation method of high-strength and wear-resistant alloy steel Download PDFInfo
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- CN105886962A CN105886962A CN201610450793.6A CN201610450793A CN105886962A CN 105886962 A CN105886962 A CN 105886962A CN 201610450793 A CN201610450793 A CN 201610450793A CN 105886962 A CN105886962 A CN 105886962A
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- Prior art keywords
- alloy steel
- resistant alloy
- manganese
- chromium
- wear
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
Abstract
The invention discloses high-strength and wear-resistant alloy steel for bucket teeth of a coal cutter and a preparation method of the high-strength and wear-resistant alloy steel. The high-strength and wear-resistant alloy steel comprises, by weight, 0.3-0.5% of carbon, 0.60-1.20% of silicon, 10-13% of manganese, 1-3% of chromium, 1-2% pf magnesium, 0.2-0.60% of vanadium, less than 0.04% of phosphorus, less than 0.04% of sulfur, 0.20-0.30% of molybdenum, 0.04-0.07% of antimony and the balance of iron, wherein the total weight percentage of the manganese, the magnesium, the chromium and the vanadium is 12-17%. The alloy steel is good in hardness, high in toughness, resistant to distortion, impact and wear and high in cost performance.
Description
Technical field
The present invention relates to production facility of coalmine field of material technology, particularly belong to a kind of coal-winning machine bucket
Tooth high-strength wear-resistant alloy steel and preparation method thereof.
Background technology
Excavator bucket teeth is a large amount of consumable accessorys consumed in digging operation, and condition of work is severe,
Failure mode majority is abrasion, and minority ruptures.Before bucket tooth is generally seated in power shovel
End, is cantilevered beam members, directly contacts with the material such as ore, sand, rock.In contacting material
Time, both withstood shocks effect, bears again Moment.During military service, bucket tooth tip is by relatively
Big impact-sliding abrasive wear, often there is various ditch dug with a plow, deformation in surface, tip, causes surface to grind
Damage or come off.Domestic bucket tooth material the most frequently used for potassium steel, it is low that it also exists service life,
The problem of Resisting fractre ability.In China, annual bucket tooth consumption is the biggest.How to improve bucket tooth
Service life, develop that production technology is easy, use novel bucket tooth reliable, cheap and good-quality
High-ductility abrasion-proof material, is still the problem being currently needed for solving further.
Summary of the invention
For the problems referred to above, it is an object of the invention to provide a kind of coal-winning machine bucket tooth high intensity
Wear-resisting alloy steel and preparation method thereof, steel alloy has good hardness, obdurability, anti-twist,
Anti-strike, wear-resisting performance, cost performance is high.
The technical solution used in the present invention is as follows:
A kind of coal-winning machine bucket tooth high-strength wear-resistant alloy steel, is made up of following components by weight percent: carbon
0.3-0.5%, silicon 0.60-1.20%, manganese 10-13%, chromium 1-3%, magnesium 1-2%, vanadium 0.2-
0.60%, phosphorus ＜ 0.04%, sulphur ＜ 0.04%, molybdenum 0.20-0.30%, antimony 0.04-0.07%, remaining
Amount iron；Wherein manganese, magnesium, chromium and vanadium are total up to 12-17%.
Described carbon 0.3%, silicon 0.60%, manganese 10%, chromium 1%, magnesium 1%, vanadium 0.2%,
Phosphorus ＜ 0.04%, sulphur ＜ 0.04%, molybdenum 0.2%, antimony 0.04%.
Described carbon 0.5%, silicon 1.20%, manganese 13%, chromium 2%, magnesium 1%, vanadium 0.60%,
Phosphorus ＜ 0.04%, sulphur ＜ 0.04%, molybdenum 0.30%, antimony 0.07%.
Described carbon 0.4%, silicon 0.80%, manganese 12%, chromium 2%, magnesium 1.5%, vanadium 0.4%,
Phosphorus ＜ 0.04%, sulphur ＜ 0.04%, molybdenum 0.25%, antimony 0.05%.
A kind of preparation method of coal-winning machine bucket tooth high-strength wear-resistant alloy steel, 1) dispensing: choosing
Take scrap iron, steel scrap and contain silicon, manganese, chromium, the alloy of molybdenum；
2) melting: first by 1) dispensing in step puts into furnace bottom and is lined with the intermediate frequency furnace of hot lime
In, fusing；
3) sampling adjust: make it obtain 1) step design proportioning,
4) moulding by casting: then go out intermediate frequency furnace；
5) it is heat-treated: by 4) quench；After workpiece quenching, it is 220-250 in temperature
It is tempered under conditions of DEG C, then insulation 20-30 minute, with stabilizing tissue；
6) again after tempering furnace inside holding 8-9 hour of 300-320 DEG C air cooling to normal temperature.
Compared with the prior art, beneficial effects of the present invention is as follows:
By the present invention in that elements such as using tungsten, magnesium, antimony, the steel alloy obtained has good
Hardness, obdurability, strike anti-twist, anti-, wear-resisting performance, and more high temperature resistant.Alloy
Steel mechanical property is: hot strength 1421MPa, yield strength 955MPa, elongation percentage 14.3
%, the contraction percentage of area 33%, impact absorbing energy 52.7J, impact flexibility 63J/cm2, hardness
295HB。
Detailed description of the invention
A kind of coal-winning machine bucket tooth high-strength wear-resistant alloy steel, is made up of following components by weight percent:
Described carbon 0.4%, silicon 0.80%, manganese 12%, chromium 2%, magnesium 1.5%, vanadium 0.4%, phosphorus
＜ 0.04%, sulphur ＜ 0.04%, molybdenum 0.25%, antimony 0.05%.
A kind of coal-winning machine bucket tooth high-strength wear-resistant alloy steel Preparation Method, 1) dispensing: choose
Scrap iron, steel scrap and containing silicon, manganese, chromium, the alloy of molybdenum；
2) melting: first by 1) dispensing in step puts into furnace bottom and is lined with the intermediate frequency furnace of hot lime
In, fusing；
3) sampling adjust: make it obtain 1) step design proportioning,
4) moulding by casting: then go out intermediate frequency furnace；
5) it is heat-treated: by 4) quench；After workpiece quenching, it is 220-250 in temperature
It is tempered under conditions of DEG C, then insulation 20-30 minute, with stabilizing tissue；
6) again after tempering furnace inside holding 8-9 hour of 300-320 DEG C air cooling to normal temperature.
The present invention adds the elements such as magnesium, molybdenum, antimony, the alloy obtained on the basis of mild steel
It is good, high temperature resistant that steel not only has high hardness, high intensity, wearability, but also has tough
Property good, plasticity advantage good, corrosion resistant, cost performance is high.Embodiment medium alloy steel mechanical property
Can be: hot strength 1421MPa, yield strength 955MPa, elongation percentage 14.3%, section
Shrinkage factor 33%, impact absorbing energy 52.7J, impact flexibility 63J/cm2, hardness 295HB.
The general principle of the present invention, principal character and the present invention excellent has more than been shown and described
Point.Skilled person will appreciate that of the industry, the present invention is not restricted to the described embodiments, on
State the principle that the present invention is simply described described in embodiment and specification, without departing from the present invention
On the premise of spirit and scope, the present invention also has various changes and modifications, and these change and change
Enter to both fall within scope of the claimed invention.Claimed scope is by appended power
Profit claim and equivalent thereof define.
Claims (5)
1. a coal-winning machine bucket tooth high-strength wear-resistant alloy steel, it is characterised in that: by following
Components by weight percent form: carbon 0.3-0.5%, silicon 0.60-1.20%, manganese 10-13%, chromium 1-3%,
Magnesium 1-2%, vanadium 0.2-0.60%, phosphorus ＜ 0.04%, sulphur ＜ 0.04%, molybdenum 0.20-0.30%,
Antimony 0.04-0.07%, balance iron；Wherein manganese, magnesium, chromium and vanadium are total up to 12-17%.
A kind of coal-winning machine bucket tooth high-strength wear-resistant alloy steel the most according to claim 1,
It is characterized in that: described carbon 0.3%, silicon 0.60%, manganese 10%, chromium 1%, magnesium 1%, vanadium
0.2%, phosphorus ＜ 0.04%, sulphur ＜ 0.04%, molybdenum 0.2%, antimony 0.04%.
A kind of coal-winning machine bucket tooth high-strength wear-resistant alloy steel the most according to claim 1,
It is characterized in that: described carbon 0.5%, silicon 1.20%, manganese 13%, chromium 2%, magnesium 1%, vanadium
0.60%, phosphorus ＜ 0.04%, sulphur ＜ 0.04%, molybdenum 0.30%, antimony 0.07%.
A kind of coal-winning machine bucket tooth high-strength wear-resistant alloy steel the most according to claim 1,
It is characterized in that: described carbon 0.4%, silicon 0.80%, manganese 12%, chromium 2%, magnesium 1.5%, vanadium
0.4%, phosphorus ＜ 0.04%, sulphur ＜ 0.04%, molybdenum 0.25%, antimony 0.05%.
A kind of coal-winning machine bucket tooth high-strength wear-resistant alloy steel the most according to claim 1
Preparation method, it is characterised in that: 1) dispensing: choose scrap iron, steel scrap and containing silicon, manganese,
Chromium, the alloy of molybdenum；
2) melting: first by 1) dispensing in step puts into furnace bottom and is lined with the intermediate frequency furnace of hot lime
In, fusing；
3) sampling adjust: make it obtain 1) step design proportioning,
4) moulding by casting: then go out intermediate frequency furnace；
5) it is heat-treated: by 4) quench；After workpiece quenching, it is 220-250 in temperature
It is tempered under conditions of DEG C, then insulation 20-30 minute, with stabilizing tissue；
6) again after tempering furnace inside holding 8-9 hour of 300-320 DEG C air cooling to normal temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610450793.6A CN105886962A (en) | 2016-06-21 | 2016-06-21 | High-strength and wear-resistant alloy steel for bucket teeth of coal cutter and preparation method of high-strength and wear-resistant alloy steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610450793.6A CN105886962A (en) | 2016-06-21 | 2016-06-21 | High-strength and wear-resistant alloy steel for bucket teeth of coal cutter and preparation method of high-strength and wear-resistant alloy steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105886962A true CN105886962A (en) | 2016-08-24 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610450793.6A Pending CN105886962A (en) | 2016-06-21 | 2016-06-21 | High-strength and wear-resistant alloy steel for bucket teeth of coal cutter and preparation method of high-strength and wear-resistant alloy steel |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107815610A (en) * | 2017-09-19 | 2018-03-20 | 宁波至诚新材料有限公司 | A kind of excavator bucket teeth and preparation method thereof |
| CN107815611A (en) * | 2017-10-31 | 2018-03-20 | 桂林加宏汽车修理有限公司 | A kind of high strength steel alloy |
| CN110479962A (en) * | 2019-08-07 | 2019-11-22 | 安徽凤杰金属资源有限公司 | One kind antifriction alloy made of wastes of iron and steel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101423884A (en) * | 2008-12-09 | 2009-05-06 | 徐信 | Method for producing high-manganses wear resistant steel plate and steel plate produced thereby |
| CN101492785A (en) * | 2009-03-09 | 2009-07-29 | 四川大学 | High-silicon Hadfield steel with remarkable strain hardening ability |
| JP2009228079A (en) * | 2008-03-24 | 2009-10-08 | Nisshin Steel Co Ltd | Zn-Al-Mg BASED STEEL SHEET HAVING EXCELLENT HOT DIP METAL EMBRITTLEMENT CRACK RESISTANCE AND METHOD FOR PRODUCING THE SAME |
| CN103397275A (en) * | 2013-08-09 | 2013-11-20 | 钢铁研究总院 | Martensite series wear-resistant steel and preparation method thereof |
-
2016
- 2016-06-21 CN CN201610450793.6A patent/CN105886962A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009228079A (en) * | 2008-03-24 | 2009-10-08 | Nisshin Steel Co Ltd | Zn-Al-Mg BASED STEEL SHEET HAVING EXCELLENT HOT DIP METAL EMBRITTLEMENT CRACK RESISTANCE AND METHOD FOR PRODUCING THE SAME |
| CN101423884A (en) * | 2008-12-09 | 2009-05-06 | 徐信 | Method for producing high-manganses wear resistant steel plate and steel plate produced thereby |
| CN101492785A (en) * | 2009-03-09 | 2009-07-29 | 四川大学 | High-silicon Hadfield steel with remarkable strain hardening ability |
| CN103397275A (en) * | 2013-08-09 | 2013-11-20 | 钢铁研究总院 | Martensite series wear-resistant steel and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107815610A (en) * | 2017-09-19 | 2018-03-20 | 宁波至诚新材料有限公司 | A kind of excavator bucket teeth and preparation method thereof |
| CN107815611A (en) * | 2017-10-31 | 2018-03-20 | 桂林加宏汽车修理有限公司 | A kind of high strength steel alloy |
| CN110479962A (en) * | 2019-08-07 | 2019-11-22 | 安徽凤杰金属资源有限公司 | One kind antifriction alloy made of wastes of iron and steel |
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Application publication date: 20160824 |
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