CN1970816A - Cast steel materials - Google Patents
Cast steel materials Download PDFInfo
- Publication number
- CN1970816A CN1970816A CN 200610128412 CN200610128412A CN1970816A CN 1970816 A CN1970816 A CN 1970816A CN 200610128412 CN200610128412 CN 200610128412 CN 200610128412 A CN200610128412 A CN 200610128412A CN 1970816 A CN1970816 A CN 1970816A
- Authority
- CN
- China
- Prior art keywords
- cast steel
- cast
- stove
- incubated
- cooling
- 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.)
- Granted
Links
Landscapes
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a making method of cast-steel material, which comprises the following steps: allocating raw material with 0.2-0.29% C, 0.4-0.6% Si, 0.8-1.1% Mn, 0.35-0.5% Cr, not more than 0.15% Ni, not more than 0.20% Mo, not more than 0.040% S and not more than 0.040% P; casting once at 920+-10 deg.c; insulating 2h; cooling; heating to 880 deg.c; insulating 1h; quenching to indoor temperature; tempering at 580+-10 deg.c; insulating 2h; cooling to 350 deg.c; discharging. The cast steel (ZG30Cr06A) possesses excellent strength, which improves plasticity and impacting flexibility.
Description
Technical field
The present invention relates to cast steel material, especially relate to a kind of low-alloy, high-intensity cast steel material.
Background technology
High end support upper prop nest class, the more first-class component of connection in the colliery special use often adopt steel casting.Because support work the time will be born from goaf top plate and the next rock stratum and be striden the change impacts dynamic load that is produced when the weight static load of fallen coal, stone and top board stride, and therefore requires the anti-fragility impact fracture threshold value of back timber needling higher.Conventional ZG27SiMn cast steel has higher intensity, maximum characteristics are that weldability is better, can according to difference require or the low-temperaturetempering state under use, but produce column-fossa, connecting joint type component on the support, its crackle tendency is very big, is difficult for producing the high-quality steel casting of stable performance.
Summary of the invention
The object of the present invention is to provide a kind of high strength, toughness cast steel material preferably.
For achieving the above object, the present invention can take following technical proposals:
Cast steel material of the present invention, it contains weight percent: C element 0.2-0.29, Si element 0.4-0.6, Mn element 0.8-1.1, Cr element 0.35-0.5, Ni element≤0.15, Mo element≤0.20, S element≤0.040, P element≤0.040; Cast a back normalizing, temperature is 920 ℃ ± 10 ℃, is incubated air cooling after 2 hours, reenter stove then and be heated to 880 ℃, be incubated and come out of the stove hardening to room temperature after 1 hour, tempering then, 580 ℃ ± 10 ℃ of tempering temperatures are incubated 350 ℃ of naturally cooling of can coming out of the stove of furnace cooling after 2 hours.
The invention has the advantages that on ZG27SiMn cast steel chemical ingredients basis, the Si element is reduced to below 0.8%, and add chromium (Cr) element and improve hardening capacity and temper resistance, add molybdenum (Mo) element and improve hardening capacity and toughness, add nickel (Ni) element and improve hardening capacity, intensity, toughness.By test, tempering temperature is set at 580 ℃ to avoid (promptly 250 ℃-400 ℃ of temper brittleness humidity provinces; 450 ℃-575 ℃) the deficiency that reduces of the steel casting impelling strength that causes.Contrast as shown in Table 1 according to the cast steel (ZG30Cr06A) of the present invention's production and the mechanical property of existing ZG27SiMn cast steel.
Correlation data as can be seen from table, cast steel (ZG30Cr06A) strength of materials that the present invention produces and the intensity of existing ZG27SiMn cast steel material are more or less the same, but plasticity and impelling strength are significantly improved, therefore, high end support upper prop nest class, the more first-class component of connection of adopting cast steel material of the present invention (ZG30Cr06A) to produce, guaranteeing that dynamic load of anti-change impacts the and anti-fragility impact fracture threshold value all are greatly improved under its strength condition.
Table one
| Material mark | Hardness HB | Mechanical property | ||||||
| σ 0.2 | δb | σ5 | ψ | Akv normal temperature | Impelling strength | |||
| Thermal treatment HB | Coupon φ 10mm | MPa | ％ | J | αkvJ/cm 2 | |||
| ZG30Cr06A | 311 | 281 | 858 | 946 | 13 | 27 | 37 | 46 |
| ZG27SiMn | 270 | 245 | 705 | 995 | 6 | 8.5 | 10 | 13 |
Embodiment
Cast steel material of the present invention is characterized in that: it contains weight percent: C element 0.2-0.29, Si element 0.4-0.6, Mn element 0.8-1.1, Cr element 0.35-0.5, Ni element≤0.15, Mo element≤0.20, S element≤0.040, P element≤0.040; Cast a back normalizing, temperature is 920 ℃ ± 10 ℃, is incubated air cooling after 2 hours, reenter stove then and be heated to 880 ℃, be incubated and come out of the stove hardening to room temperature after 1 hour, tempering then, 580 ℃ ± 10 ℃ of tempering temperatures are incubated 350 ℃ of naturally cooling of can coming out of the stove of furnace cooling after 2 hours.
Claims (1)
1, a kind of cast steel material is characterized in that: it contains weight percent: C element 0.2-0.29, Si element 0.4-0.6, Mn element 0.8-1.1, Cr element 0.35-0.5, Ni element≤0.15, Mo element≤0.20, S element≤0.040, P element≤0.040; Cast a back normalizing, temperature is 920 ℃ ± 10 ℃, is incubated air cooling after 2 hours, reenter stove then and be heated to 880 ℃, be incubated and come out of the stove hardening to room temperature after 1 hour, tempering then, 580 ℃ ± 10 ℃ of tempering temperatures are incubated 350 ℃ of naturally cooling of can coming out of the stove of furnace cooling after 2 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101284129A CN100417741C (en) | 2006-12-19 | 2006-12-19 | Cast steel materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101284129A CN100417741C (en) | 2006-12-19 | 2006-12-19 | Cast steel materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1970816A true CN1970816A (en) | 2007-05-30 |
| CN100417741C CN100417741C (en) | 2008-09-10 |
Family
ID=38111841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101284129A Active CN100417741C (en) | 2006-12-19 | 2006-12-19 | Cast steel materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100417741C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102586677A (en) * | 2012-03-23 | 2012-07-18 | 三一重型装备有限公司 | Low-carbon low-alloy steel and preparation method thereof |
| CN102586691A (en) * | 2012-03-20 | 2012-07-18 | 三一重型装备有限公司 | Bainite cast steel and preparation method thereof |
| CN103014528A (en) * | 2012-12-10 | 2013-04-03 | 张家港市鼎力铸钢有限公司 | High-strength cast steel |
| CN105154781A (en) * | 2015-08-31 | 2015-12-16 | 苏州金业船用机械厂 | Alloy material for casting marine engine cylinders |
| CN109898023A (en) * | 2019-04-16 | 2019-06-18 | 柳州市创科复合金属陶瓷制品有限公司 | Sheet billet continuous casting roll bearing seat and its manufacturing method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1033292A (en) * | 1987-11-27 | 1989-06-07 | 全苏石棉工业国家科学研究设计院 | Cast steel |
| JP2002294395A (en) * | 2001-03-29 | 2002-10-09 | Kurimoto Ltd | Wear resistant low alloy cast steel suitable for product of large thickness |
| CN1176281C (en) * | 2003-02-09 | 2004-11-17 | 江苏永益铸管股份有限公司 | RE low-alloy cast steel node |
| CN1304621C (en) * | 2005-09-22 | 2007-03-14 | 北京交通大学 | Prepn process of semi-solid Al2O-Sn slurry |
-
2006
- 2006-12-19 CN CNB2006101284129A patent/CN100417741C/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102586691A (en) * | 2012-03-20 | 2012-07-18 | 三一重型装备有限公司 | Bainite cast steel and preparation method thereof |
| CN102586677A (en) * | 2012-03-23 | 2012-07-18 | 三一重型装备有限公司 | Low-carbon low-alloy steel and preparation method thereof |
| CN103014528A (en) * | 2012-12-10 | 2013-04-03 | 张家港市鼎力铸钢有限公司 | High-strength cast steel |
| CN105154781A (en) * | 2015-08-31 | 2015-12-16 | 苏州金业船用机械厂 | Alloy material for casting marine engine cylinders |
| CN109898023A (en) * | 2019-04-16 | 2019-06-18 | 柳州市创科复合金属陶瓷制品有限公司 | Sheet billet continuous casting roll bearing seat and its manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100417741C (en) | 2008-09-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101906588B (en) | Preparation method for air-cooled lower bainite/martensite multi-phase wear-resistant cast steel | |
| US8852366B2 (en) | Method for producing steel pipe with excellent expandability | |
| CN101497964B (en) | High hardness and toughness low alloy abrasion resistant steel and use thereof | |
| CN101691640B (en) | High strength low alloy wear resistance steel plate and preparation method thereof | |
| CN103352111B (en) | Heat treatment method for tricone bit claw | |
| CN100366778C (en) | Steel in use for fire resistant, heat insulated oil line, and preparation method | |
| CN101613835A (en) | A kind of alloy hot rolled steel plate and make the method for gas cylinder with it | |
| CN104264060B (en) | A kind of high impact toughness, high thermal stability Extrusion Die Steel and preparation method thereof | |
| CN106222544B (en) | Annular forging piece and its heat treatment method | |
| CN105018859A (en) | Wear-resisting bainite cast steel and preparation method thereof | |
| KR20120070603A (en) | High-toughness abrasion-resistant steel and manufacturing method therefor | |
| CN1970816A (en) | Cast steel materials | |
| CN105018854A (en) | High-heat-resistance hot work die steel and preparation method | |
| CN103103435B (en) | Preparation technology for nodular cast iron with TRIP (transformation-induced plasticity) effect | |
| CN1990893B (en) | Tube mill lining board and manufacturing method thereof | |
| CN105671428A (en) | Manufacturing method of steel material, hot-rolled flat steel and steel plate spring, manufactured steel plate spring and vehicle | |
| CN102115806A (en) | Heat treatment process for improving low temperature toughness of super-thick plates | |
| CN104962840A (en) | Steel for automotive engine expansion breaking connecting rod | |
| CN103205639B (en) | Shovel blade cutting edge of loader and method for manufacturing shovel blade cutting edge | |
| CN101240400B (en) | Low-cost hot working die steel | |
| CN103741042B (en) | A kind of high abrasion cold roll alloy material and preparation method thereof | |
| CN114058973B (en) | NM 450-level low-carbon low-alloy bainite wear-resistant steel and preparation method thereof | |
| CN101597678B (en) | Method for processing wear resistance steel medium alloy lining board | |
| CN101240399A (en) | Low-chromium low-cost hot working die steel | |
| CN101736201A (en) | High-strength special type sucker rod steel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 105, Huashan Road, Zhengzhou, Henan Patentee after: Zhengzhou Coal Mining Machinery Group Co., Ltd. Address before: No. 105, Huashan Road, Zhengzhou, Henan Patentee before: Zhengzhou Coal Mining Machinery Group Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: ZHENGZHOU MINE MACHINE GROUP CO., LTD. Free format text: FORMER NAME: ZHENGZHOU COAL MINE MACHINERY GROUP CO., LTD. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181101 Address after: 450041 58 Danjiang Road, Shang Jie district, Zhengzhou, Henan Patentee after: Zhengzhou coal machine Green Mstar Technology Ltd Address before: 450013 No. 105, Huashan Road, Zhengzhou, Henan Patentee before: Zhengzhou Coal Mining Machinery Group Co., Ltd. |