CN103834872A - Die steel with high-wearing resistance - Google Patents
Die steel with high-wearing resistance Download PDFInfo
- Publication number
- CN103834872A CN103834872A CN201210484950.7A CN201210484950A CN103834872A CN 103834872 A CN103834872 A CN 103834872A CN 201210484950 A CN201210484950 A CN 201210484950A CN 103834872 A CN103834872 A CN 103834872A
- Authority
- CN
- China
- Prior art keywords
- die steel
- steel
- die
- wearing resistance
- skd11
- 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.)
- Pending
Links
Abstract
The invention belongs to the technical field of preparation of alloy steel materials, relates to die alloy steel with high-wearing resistance, and in particular discloses die steel with high-wearing resistance. The die steel comprises the following components in percentage by weight: 0.9-1.0% of C, 0.6-1.1% of Si, 0.2-0.5% of Mn, less than or equal to 0.025% of P, less than or equal to 0.02% of S, 7.7-8.2% of Cr, 0.7-1.0% of Mo, 0.3-0.6% of W, 0.05-0.15% of V, 0.35-0.55% of Ni, 0.2-0.4% of Cu, 0.05-0.15% of Nb, 0.2-0.4% of Al and the balance of iron. By adopting the technical scheme, the die steel is high in wearing resistance, low in price, small in thermal deformation and high in machinability.
Description
Technical field
The invention belongs to alloy steel material preparing technical field, especially relate to the mould alloy steel that a kind of wear resisting property is high.
Background technology
Die steel is the steel grade for manufacturing the mould such as cold-punching mould, hot-forging die transfer mold, mould is the main machining tool of finished parts in the industrial sectors such as machinofacture, wireless instrument, motor, electrical equipment, the quality of mould directly affect the precision output of quality, product of pressure processing craft and production cost and the quality of mould and work-ing life except by rational structure design and working accuracy, be mainly subject to moulding stock and heat treated impact.
Hot-work die steel is suitable to hardness requirement, lays particular emphasis on red hardness, thermal conductivity, wear resistance.Therefore carbon content is low, and alloying element is to increase hardening capacity, and raising wear resistance, red hardness are main.The principal feature of hot-work die working conditions be contact with thermal state metal, this is and the key distinction of cold-work die working conditions that its cavity surface temperature can reach more than 300～400 ℃, a little can reach more than 500 ~ 800 ℃, even reaches more than 1000 ℃.High like this use temperature can make cavity surface hardness and intensity significantly reduce, and buttress in use easily occurs to beat.
The SKD11 tool steel that Japan develops, in the industry cycle well-known, price is also the highest, this steel is widely used in cold-work die steel, through electrosmelting and through electroslag remelting, high cleanliness, toughness is better, homogeneous microstructure, there is good hot strength, toughness and high temperature resistance fatigue property, the cataclysm of energy withstand temp, suitable at high temperature long term operation, there is good cutting ability and polishing performance, 1020 ℃ of quenching temperatures, to make greatly, the best materials of medium-sized aluminium alloy casting die, its composition and mass percent are: 1.5%, Si0.25%, Mn0.45%, Cr12%, Mo1.00%, V0.35%, P≤0.025%, S≤0.01%.
Above-mentioned SKD11 steel alloy, although popularity is high, it is expensive also by industry is denounced, and therefore, is necessary to develop one cheap, the mould alloy steel that performance and SKD11 are equal or higher.
Summary of the invention
It is high that the technical problem to be solved in the present invention is to provide a kind of wear resisting property, cheap, the high-wearing feature die steel that heat treatment deformation is little and machinability is strong.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is that the composition of this high-wearing feature die steel and weight percent are: C0.9 ~ 1.0%, Si0.6 ~ 1.1%, Mn0.2 ~ 0.5%, P≤0.025%, S≤0.02%, Cr7.7 ~ 8.2%, Mo0.7 ~ 1.0%, W0.3 ~ 0.6%, V0.05 ~ 0.15%, Ni0.35 ~ 0.55%, Cu0.2 ~ 0.4%, Nb0.05 ~ 0.15%, Al0.2 ~ 0.4%, surplus is iron.
Because die steel is very high to hardness requirement, the carbon content in foregoing invention technical scheme is chosen in lower level, and 0.9 ~ 1.0%, but carbon content again can not be too low, the too low not enough and cold and hot fatigue of toughness that easily causes; Cr element is ferrite former, dwindle Y district, can greatly improve intensity and the plasticity of die steel, especially particularly remarkable in the steel of being combined with Ni, but the content for Cr has strict demand, technical solution of the present invention is restricted to 7.7 ~ 8.2% by the content of Cr, then it is coordinated with W0.3 ~ 0.6% and V0.05 ~ 0.15%, can obtain having the die steel of fine red hardness.
Add Si0.6 ~ 1.1% to make this die steel there is good thermotolerance and oxidation-resistance.
The effect that adds Nb0.05 ~ 0.15% is mainly to obtain superfine disperse phase, improves favourable to the resistance toheat of die steel.
The effect in the present invention of Mo element is mainly the fragility that reduces die steel, and certainly, other elements W, V etc. also have very large effect to the improvement of die steel fragility.
Add Nb0.05 ~ 0.15%, under the prerequisite that is especially 7.7 ~ 8.2% at the content of Cr, can reduce the air cooling hardening of die steel, avoid temper brittleness, improve creep strength, reduce creep speed.
Cu element outstanding role is in the present invention the weather-resistant performance of improving die steel; Itself and P are used in conjunction with, and have improved intensity and the yield ratio of die steel; But, P content should be not too high, can cause segregation serious, increase temper brittleness, significantly reduce plasticity and the toughness of steel, cause steel easy embrittlement in the time of cold working, also so-called " cold short " phenomenon, therefore, in technical solution of the present invention, its content is restricted to P≤0.025%, does not also allow containing P.
S contributes to improve the cutting ability of die steel, and still, it is harmful element that S tends in die steel, therefore, should strictly limit the content of S.
As a further improvement on the present invention, C0.9%, Si0.6%, Mn0.2%, P0.01%, S0.01%, Cr7.7%, Mo0.7%, W0.3%, V0.05%, Ni0.35%, Cu0.2%, Nb0.05%, Al0.2%, iron is surplus.
As a further improvement on the present invention, C1.0%, Si1.1%, Mn0.5%, P0.025%, S0.02%, Cr8.2%, Mo1.0%, W0.6%, V0.15%, Ni0.55%, Cu0.4%, Nb0.15%, Al0.4%, iron is surplus.
As a further improvement on the present invention, C0.95%, Si0.9%, Mn0.3%, Cr8.0%, Mo0.85%, W0.45%, V0.1%, Ni0.45%, Cu0.3%, Nb0.1%, Al0.3%, iron is surplus.
Embodiment
1, embodiment 1: in the present embodiment, the composition of the die steel of employing and weight percent thereof are: C0.9%, Si0.6%, Mn0.2%, P0.01%, S0.01%, Cr7.7%, Mo0.7%, W0.3%, V0.05%, Ni0.35%, Cu0.2%, Nb0.05%, Al0.2%, iron is surplus.
Its preparation technology's flow process comprises the following steps:
(1) melting: adopt the conventional method melting of those skilled in the art, will prepare burden and be positioned in medium-frequency induction furnace by above-mentioned formula and carry out melting, obtain steel ingot;
(2) esr: can reduce the content of gas and inclusion after esr, and obtain uniform ingredients, dense structure, steel ingot that quality is high;
(3) high-temperature homogenization: with post-heating, reach 1200 ~ 1240 ℃ of temperature, and insulation, make composition of steel homogenizing, then bury sand cooling but;
(4) forge: again by above-mentioned Heating Steel Ingots to 1200 ~ 1230 ℃, carry out rough forge, 940 ℃ of final forging temperatures, obtain forging;
(5) forging annealing: at 830 ℃ of temperature, anneal 6 ~ 8 hours, furnace cooling subsequently;
(6) blank forging: be again heated to 1100 ~ 1300 ℃, again forge processing in 930-1100 ℃ of temperature range;
(7) annealing: at 810 ℃ of temperature, again anneal about 7 hours, furnace cooling subsequently, obtains product.
2, Performance Detection
Through detecting, its wear resisting property is high, and maximum hardness is 62HRC, has improved more than 30% than SKD11, and heat treatment deformation SKD11 is low by 35%, and machinability is 2.2 times of SKD11.
3, in the same manner as in Example 1, the composition of the die steel of employing and weight percent thereof are embodiment 2 its preparation technology's flow processs: C0.95%, Si0.9%, Mn0.3%, Cr8.0%, Mo0.85%, W0.45%, V0.1%, Ni0.45%, Cu0.3%, Nb0.1%, Al0.3%, iron is surplus.
Through detection, the die steel that technique scheme obtains, its wear resisting property is high, and maximum hardness is 61HRC, higher than SKD11, and heat treatment deformation is low by 30% compared with SKD11, and machinability is 2 times of SKD11.
4, in the same manner as in Example 1, the composition of the die steel of employing and weight percent thereof are embodiment 3 its preparation technology's flow processs: C1.0%, Si1.1%, Mn0.5%, P0.025%, S0.02%, Cr8.2%, Mo1.0%, W0.6%, V0.15%, Ni0.55%, Cu0.4%, Nb0.15%, Al0.4%, iron is surplus.
Through detection, the die steel that technique scheme obtains, its wear resisting property is high, and maximum hardness is 62HRC, higher than SKD11, and heat treatment deformation is low by 30% compared with SKD11, and machinability is 2.2 times of SKD11.
Claims (4)
1. a high-wearing feature die steel, is characterized in that, the composition of this die steel and weight percent are: C0.9 ~ 1.0%, Si0.6 ~ 1.1%, Mn0.2 ~ 0.5%, P≤0.025%, S≤0.02%, Cr7.7 ~ 8.2%, Mo0.7 ~ 1.0%, W0.3 ~ 0.6%, V0.05 ~ 0.15%, Ni0.35 ~ 0.55%, Cu0.2 ~ 0.4%, Nb0.05 ~ 0.15%, Al0.2 ~ 0.4%, surplus is iron.
2. high-wearing feature die steel as claimed in claim 1, is characterized in that, C0.9%, Si0.6%, Mn0.2%, P0.01%, S0.01%, Cr7.7%, Mo0.7%, W0.3%, V0.05%, Ni0.35%, Cu0.2%, Nb0.05%, Al0.2%.
3. high-wearing feature die steel as claimed in claim 1, is characterized in that, C1.0%, Si1.1%, Mn0.5%, P0.025%, S0.02%, Cr8.2%, Mo1.0%, W0.6%, V0.15%, Ni0.55%, Cu0.4%, Nb0.15%, Al0.4%.
4. high-wearing feature die steel as claimed in claim 1, is characterized in that, C0.95%, Si0.9%, Mn0.3%, Cr8.0%, Mo0.85%, W0.45%, V0.1%, Ni0.45%, Cu0.3%, Nb0.1%, Al0.3%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210484950.7A CN103834872A (en) | 2012-11-26 | 2012-11-26 | Die steel with high-wearing resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210484950.7A CN103834872A (en) | 2012-11-26 | 2012-11-26 | Die steel with high-wearing resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103834872A true CN103834872A (en) | 2014-06-04 |
Family
ID=50798762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210484950.7A Pending CN103834872A (en) | 2012-11-26 | 2012-11-26 | Die steel with high-wearing resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103834872A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105420624A (en) * | 2015-11-10 | 2016-03-23 | 太仓捷公精密金属材料有限公司 | Hot work die steel material |
| JP2016074968A (en) * | 2014-06-19 | 2016-05-12 | 大同特殊鋼株式会社 | Cold tool steel |
| CN105648315A (en) * | 2016-01-27 | 2016-06-08 | 太仓旺美模具有限公司 | High-strength mold steel for cold-punched mold |
| CN107523756A (en) * | 2017-06-30 | 2017-12-29 | 太仓旺美模具有限公司 | A kind of new die steel |
| CN107523753A (en) * | 2017-06-30 | 2017-12-29 | 太仓旺美模具有限公司 | A kind of mould steel |
| CN107523765A (en) * | 2017-06-30 | 2017-12-29 | 太仓旺美模具有限公司 | A kind of novel die material |
| CN110284048A (en) * | 2019-07-29 | 2019-09-27 | 沛县祥龙矿山机械配件有限公司 | A kind of ball mill high carbon and chromium high boron alloy steel ball and preparation method thereof |
| CN110656281A (en) * | 2018-06-29 | 2020-01-07 | 宝钢特钢有限公司 | High-hardness die steel and preparation method thereof |
| CN113201696A (en) * | 2021-05-11 | 2021-08-03 | 江阴市瑞华机械制造有限公司 | TiN-rich iron alloy and preparation method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB669396A (en) * | 1938-12-06 | 1952-04-02 | Boehler & Co Ag Geb | Hot working tools and alloys therefor |
| JPH01159353A (en) * | 1987-09-24 | 1989-06-22 | Hitachi Metals Ltd | Age hardening austenitic tool steel |
| CN1503852A (en) * | 2001-04-18 | 2004-06-09 | �ӳɹ� | Reinforced durable tool steel method for the production thereof method for producing parts made of said steel and parts thus obtained |
| CN1723293A (en) * | 2002-12-25 | 2006-01-18 | 日立金属株式会社 | Cold die steel excellent in characteristic of suppressing dimensional change |
| JP2006028584A (en) * | 2004-07-15 | 2006-02-02 | Hitachi Metals Ltd | Die for cold working |
| JP2006169624A (en) * | 2004-11-18 | 2006-06-29 | Hitachi Metals Ltd | Cold die steel having excellent dimensional change suppression property and galling resistance |
| CN1924069A (en) * | 2006-09-21 | 2007-03-07 | 上海大学 | High heat-intensity hot-work die steel material |
| CN101629267A (en) * | 2007-10-31 | 2010-01-20 | 大同特殊钢株式会社 | Alloy tool steel and manufacturing method thereof |
| CN102272490A (en) * | 2009-02-26 | 2011-12-07 | 联邦摩高布尔沙伊德公司 | Steel material composition for producing piston rings and cylinder sleeves |
| WO2012115025A1 (en) * | 2011-02-21 | 2012-08-30 | 日立金属株式会社 | Manufacturing method for cold-working die |
-
2012
- 2012-11-26 CN CN201210484950.7A patent/CN103834872A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB669396A (en) * | 1938-12-06 | 1952-04-02 | Boehler & Co Ag Geb | Hot working tools and alloys therefor |
| JPH01159353A (en) * | 1987-09-24 | 1989-06-22 | Hitachi Metals Ltd | Age hardening austenitic tool steel |
| CN1503852A (en) * | 2001-04-18 | 2004-06-09 | �ӳɹ� | Reinforced durable tool steel method for the production thereof method for producing parts made of said steel and parts thus obtained |
| CN1723293A (en) * | 2002-12-25 | 2006-01-18 | 日立金属株式会社 | Cold die steel excellent in characteristic of suppressing dimensional change |
| JP2006028584A (en) * | 2004-07-15 | 2006-02-02 | Hitachi Metals Ltd | Die for cold working |
| JP2006169624A (en) * | 2004-11-18 | 2006-06-29 | Hitachi Metals Ltd | Cold die steel having excellent dimensional change suppression property and galling resistance |
| CN1924069A (en) * | 2006-09-21 | 2007-03-07 | 上海大学 | High heat-intensity hot-work die steel material |
| CN101629267A (en) * | 2007-10-31 | 2010-01-20 | 大同特殊钢株式会社 | Alloy tool steel and manufacturing method thereof |
| CN102272490A (en) * | 2009-02-26 | 2011-12-07 | 联邦摩高布尔沙伊德公司 | Steel material composition for producing piston rings and cylinder sleeves |
| WO2012115025A1 (en) * | 2011-02-21 | 2012-08-30 | 日立金属株式会社 | Manufacturing method for cold-working die |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016074968A (en) * | 2014-06-19 | 2016-05-12 | 大同特殊鋼株式会社 | Cold tool steel |
| CN105420624A (en) * | 2015-11-10 | 2016-03-23 | 太仓捷公精密金属材料有限公司 | Hot work die steel material |
| CN105648315A (en) * | 2016-01-27 | 2016-06-08 | 太仓旺美模具有限公司 | High-strength mold steel for cold-punched mold |
| CN107523756A (en) * | 2017-06-30 | 2017-12-29 | 太仓旺美模具有限公司 | A kind of new die steel |
| CN107523753A (en) * | 2017-06-30 | 2017-12-29 | 太仓旺美模具有限公司 | A kind of mould steel |
| CN107523765A (en) * | 2017-06-30 | 2017-12-29 | 太仓旺美模具有限公司 | A kind of novel die material |
| CN110656281A (en) * | 2018-06-29 | 2020-01-07 | 宝钢特钢有限公司 | High-hardness die steel and preparation method thereof |
| CN110284048A (en) * | 2019-07-29 | 2019-09-27 | 沛县祥龙矿山机械配件有限公司 | A kind of ball mill high carbon and chromium high boron alloy steel ball and preparation method thereof |
| CN113201696A (en) * | 2021-05-11 | 2021-08-03 | 江阴市瑞华机械制造有限公司 | TiN-rich iron alloy and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103834872A (en) | Die steel with high-wearing resistance | |
| CN113278896B (en) | Fe-Mn-Al-C series high-strength low-density steel and preparation method thereof | |
| CN102912236B (en) | High-performance and abrasion-resistant hot work die steel and technology for manufacturing same | |
| CN103725986B (en) | The special thick rack steel plate of the high tenacity F level used under low temperature and manufacture method thereof | |
| CN103397267B (en) | Rolling lithium battery protection board cold roll and manufacture method thereof | |
| JP6432070B2 (en) | Hot die steel for long-life die casting excellent in high-temperature thermal conductivity and method for producing the same | |
| CN103014534B (en) | Cast hot work die steel and processing method thereof | |
| CN103014495B (en) | High-tenacity high-wear-resistance cold-work die steel and processing method thereof | |
| CN103014511B (en) | High-toughness cold-work mould steel and complete processing thereof | |
| CN103014510B (en) | High-strength cold-extrusion die steel and processing technology thereof | |
| CN101709427A (en) | Low-cost, high-strength, high-toughness and high-abrasion resistance cold-working die steel and preparation method thereof | |
| CN103911556B (en) | A kind of hot-work die steel material and preparation method thereof | |
| CN102312172A (en) | B3R hot work die steel with high strength and toughness and resistance to tempering, and preparation process thereof | |
| CN103898415A (en) | Improved Cr8 steel roll and preparation method thereof | |
| CN111057934A (en) | High-performance hot-work die steel and production process thereof | |
| CN102653837A (en) | High-toughness wear-resistant cold-working die steel and preparation method thereof | |
| CN104178694A (en) | Long-service life hot work die steel | |
| CN101984119B (en) | NV-F690 ultrahigh strength ship plate steel and manufacture method thereof | |
| CN106566946A (en) | Rare earth-copper alloy glass mold and preparation method thereof | |
| CN103436802A (en) | Hot roll for rolling titanium plate and manufacturing method of hot roll | |
| CN104745954A (en) | Alloy steel and manufacturing method thereof | |
| CN109468544B (en) | High-carbon high-chromium cold-work die steel and preparation method thereof | |
| CN104532135A (en) | Cold work die steel and preparation method thereof | |
| CN111057950A (en) | High-temperature-resistant and high-toughness hot-work die steel and preparation method thereof | |
| CN105861935B (en) | Excellent Fe 36Ni invar alloy materials of a kind of thermoplasticity and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140604 |