CN1070953A - Drill rod steel - Google Patents
Drill rod steel Download PDFInfo
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- CN1070953A CN1070953A CN 92109924 CN92109924A CN1070953A CN 1070953 A CN1070953 A CN 1070953A CN 92109924 CN92109924 CN 92109924 CN 92109924 A CN92109924 A CN 92109924A CN 1070953 A CN1070953 A CN 1070953A
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- steel
- drill
- drill rod
- rock
- rod steel
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Abstract
A kind of drill rod steel, this steel has higher intensity and toughness, is suitable for being used for making high-power rock drilling bar.This steel grade is on the basis of medium carbon Ni-Cr-Mn-Si alloy steel, adds V, Nb microalloy element, to improve its use properties.The drill steel that utilizes this steel to make, through hot rolling and control cold after, only do simple tempering, do not need complicated heat treatment.Production technique is simple, steady quality, life-span height.
Description
The invention belongs to a kind of steel alloy, this steel alloy has higher intensity and toughness, is suitable for making high power hydraulic rock drill drill steel.
In the rock drilling process, drill steel plays a part to transmit energy between rock drilling machinery and rock.In the military service, drill steel bears huge impact, torsional load, and the corrosion of outside deterioration and endoporus stress, and working conditions is very harsh.Along with the development of high-power rock drilling machinery, need the rock drill drill steel of high life especially, just need to provide high performance rock-drill steel.The heavy rock-drill steel that uses mostly is low-carbon (LC) Cr-Ni steel alloy at present, thermal treatment process such as the production needs of this steel alloy are annealed, carburizing, quenching, tempering, manufacturing process complexity, the technology circuit is longer, the cost height, unstable product quality influences the production efficiency of rock drilling machinery.
Purpose of the present invention aims to provide a kind of high-quality drill rod steel, and this rock-drill steel has intensity, toughness height, and production technique is simple, and the characteristics that cost is low are utilized drill steel that this rock-drill steel the makes long service life than existing drill steel.
Purpose of the present invention is achieved through the following technical solutions: drill rod steel is made up of following fundamental element, and wherein the weight percent of each fundamental element is:
C：0.15～0.45 Si：0.50～1.50
Mn：0.50～1.50 Cr：0.30～1.00
Ni：0.80～3.50 Mo：0.10～1.00
On the basis of this fundamental element component, add at the same time or separately:
V：0.02～0.20 Nb：0.01～0.15
All the other are Fe and small amount of impurities element.
With the micro-alloyed steel of mentioned component, through hot rolling and air cooling, adjust hardness through 200～600 ℃ of temperature tempering again, produce drill rod.This rock-drill steel has promptly kept the rolling deformation strengthening effect that causes after above-mentioned processing treatment, can obtain thinner nonequilibrium microstructure again, thereby have higher intensity and toughness.
The sample that utilizes steel of the present invention to make carries out fatigue test, result such as following table:
Test-results shows, owing to add V, Nb element, in the work-ing life of having improved drill steel, promptly improved the intensity and the toughness of drill steel.With the sample that adds V, Nb element simultaneously is example, and the drill steel life-span, relatively the FF710 steel was high by 89%, and relatively the 55SiMnMo steel is high by 350%.Made drill steel in kind work-ing life, fit like a glove with The above results.
Claims (1)
1, drill rod steel is characterized in that this steel is made up of following fundamental element, and wherein the weight percent of each fundamental element is:
C：0.15～0.45 Si：0.50～1.50
Mn:0.50～1.50 Cr：0.30～1.00
Ni：0.80～3.50 Mo：0.10～1.00
On the basis of this fundamental element component, add at the same time or separately:
V：0.02～0.20 Nb：0.01～0.15
All the other are Fe and small amount of impurities element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92109924A CN1034876C (en) | 1992-09-26 | 1992-09-26 | Drill rod steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92109924A CN1034876C (en) | 1992-09-26 | 1992-09-26 | Drill rod steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1070953A true CN1070953A (en) | 1993-04-14 |
| CN1034876C CN1034876C (en) | 1997-05-14 |
Family
ID=4944475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92109924A Expired - Fee Related CN1034876C (en) | 1992-09-26 | 1992-09-26 | Drill rod steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1034876C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367556A (en) * | 2011-10-31 | 2012-03-07 | 铜陵狮达矿山机械有限公司 | Drilling steel and preparation method thereof |
| CN102373380A (en) * | 2011-10-31 | 2012-03-14 | 铜陵狮达矿山机械有限公司 | High-intensity drilling tool steel and preparation method thereof |
| CN102392191A (en) * | 2011-10-31 | 2012-03-28 | 铜陵狮达矿山机械有限公司 | Multi-component brazed steel and preparation method thereof |
| CN102409250A (en) * | 2011-10-31 | 2012-04-11 | 铜陵狮达矿山机械有限公司 | Steel for rock drilling tool and preparation method thereof |
| CN103695797A (en) * | 2013-12-21 | 2014-04-02 | 湘潭高新区风动机械有限公司 | Hollow steel for rock drilling tool |
| CN104532145A (en) * | 2014-12-29 | 2015-04-22 | 武穴市长江工具股份有限公司 | High-pressure down-the-hole rock drilling tool steel and preparation method thereof |
| CN106636923A (en) * | 2016-12-30 | 2017-05-10 | 天津威尔朗科技有限公司 | Drill rod and preparation method thereof |
| CN107974629A (en) * | 2017-11-27 | 2018-05-01 | 长沙黑金刚实业有限公司 | A kind of drilling tool steel, its preparation method and drilling tool |
| CN112322984A (en) * | 2020-11-16 | 2021-02-05 | 江苏联峰能源装备有限公司 | Steel for drill rod and preparation method thereof |
| CN114645222A (en) * | 2022-03-23 | 2022-06-21 | 常州大学 | Nb-V microalloyed hydrogen-embrittlement-resistant high-strength and high-toughness 40CrNiMo steel and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2756031B2 (en) * | 1990-10-22 | 1998-05-25 | 三菱製鋼株式会社 | High strength spring steel |
-
1992
- 1992-09-26 CN CN92109924A patent/CN1034876C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367556A (en) * | 2011-10-31 | 2012-03-07 | 铜陵狮达矿山机械有限公司 | Drilling steel and preparation method thereof |
| CN102373380A (en) * | 2011-10-31 | 2012-03-14 | 铜陵狮达矿山机械有限公司 | High-intensity drilling tool steel and preparation method thereof |
| CN102392191A (en) * | 2011-10-31 | 2012-03-28 | 铜陵狮达矿山机械有限公司 | Multi-component brazed steel and preparation method thereof |
| CN102409250A (en) * | 2011-10-31 | 2012-04-11 | 铜陵狮达矿山机械有限公司 | Steel for rock drilling tool and preparation method thereof |
| CN102409250B (en) * | 2011-10-31 | 2013-02-27 | 铜陵狮达矿山机械有限公司 | Steel for rock drilling tool and preparation method thereof |
| CN103695797A (en) * | 2013-12-21 | 2014-04-02 | 湘潭高新区风动机械有限公司 | Hollow steel for rock drilling tool |
| CN104532145A (en) * | 2014-12-29 | 2015-04-22 | 武穴市长江工具股份有限公司 | High-pressure down-the-hole rock drilling tool steel and preparation method thereof |
| CN106636923A (en) * | 2016-12-30 | 2017-05-10 | 天津威尔朗科技有限公司 | Drill rod and preparation method thereof |
| CN107974629A (en) * | 2017-11-27 | 2018-05-01 | 长沙黑金刚实业有限公司 | A kind of drilling tool steel, its preparation method and drilling tool |
| CN112322984A (en) * | 2020-11-16 | 2021-02-05 | 江苏联峰能源装备有限公司 | Steel for drill rod and preparation method thereof |
| CN114645222A (en) * | 2022-03-23 | 2022-06-21 | 常州大学 | Nb-V microalloyed hydrogen-embrittlement-resistant high-strength and high-toughness 40CrNiMo steel and preparation method thereof |
| CN114645222B (en) * | 2022-03-23 | 2022-12-23 | 常州大学 | Nb-V microalloyed hydrogen-brittleness-resistant high-strength and high-toughness 40CrNiMo steel and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1034876C (en) | 1997-05-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Applicant after: Northeastern University Applicant before: Yan Wengong, Feng Sufan |
|
| CB03 | Change of inventor or designer information |
Inventor after: Song Shouzhi Inventor after: Tong Anqing Inventor after: Xu Xiaohe Inventor after: Lv Rong Inventor after: Xing Jun Inventor after: Wang Lianxiao Inventor after: Yang Xiaoming Inventor after: Ying Hong Inventor after: Tang Chunan Inventor before: Tong Anqing Inventor before: Meng Xiangzhen Inventor before: Tang Chunan Inventor before: Wu Zhi Inventor before: Song Shouzhi Inventor before: Xu Xiaoye Inventor before: Wang Lianxiao Inventor before: Yang Xiaoming Inventor before: Zhu Yi Inventor before: Ying Hong Inventor before: lv rong Inventor before: Huang Shifang |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: TONG ANQING; SONG SHOUZHI; XU XIAOHE; WANG LIANXIAO; YANG XIAOMING; ZHU YI; YINGHONG; LV RONG; HUANG SHIFANG; MENG XIANGZHEN; TANG CHUNAN; WU ZHI TO: SONG SHOUZHI; TONG ANQING; XU XIAOHE; LV RONG; XING JUN; WANG LIANXIAO; YANG XIAOMING; YINGHONG; TANG CHUNAN; APPLICANT; FROM: NORTHEAST POLYTECHNIC COLLEGE TO: NORTHEASTERN UNIVERSITY |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |