CN104561500A - Thermal treatment method for mining drill bit - Google Patents
Thermal treatment method for mining drill bit Download PDFInfo
- Publication number
- CN104561500A CN104561500A CN201310496704.8A CN201310496704A CN104561500A CN 104561500 A CN104561500 A CN 104561500A CN 201310496704 A CN201310496704 A CN 201310496704A CN 104561500 A CN104561500 A CN 104561500A
- Authority
- CN
- China
- Prior art keywords
- mine drill
- drill bit
- drill
- quartz sand
- mine
- 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
Classifications
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/22—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for drills; for milling cutters; for machine cutting tools
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- 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
- 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
- C21D1/34—Methods of heating
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/005—Heat treatment of ferrous alloys containing Mn
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/008—Heat treatment of ferrous alloys containing Si
-
- 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
- C21D2201/00—Treatment for obtaining particular effects
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a thermal treatment method for a mining drill bit. The mining drill bit is buried in quartz sand for heat preservation on multiple temperature sections, the mining drill bit with carbon is tempered repeatedly after being quenched, and accordingly, the hardness and the wear resistance of the mining drill bit can be greatly improved. Compared with a mining drill bit not subjected to thermal treatment, the service life of the mining drill bit subjected to thermal treatment can be prolonged by 50%.
Description
Technical field
The present invention relates to a kind of mine drill heat treating method, belong to technical field of metal heat treatment.
Background technology
Mine drill plays a part very important in mineral industry, and it is the first pioneer of mining.In order to obtain precious mineral products, mine drill must in the face of the test of the geologic framework of various complexity.Such as, in some cases, mineral products bury under hard RKB, and mine drill just must chisel hard rock, and therefore mining industry has higher requirement for the hardness of mine drill and wear resisting property.
Summary of the invention
The object of the invention is to, a kind of mine drill heat treating method is provided.It can improve hardness and the wear resisting property of mine drill, thus extends the work-ing life of mine drill.
Technical scheme of the present invention: a kind of mine drill heat treating method, is characterized in, comprises the following steps:
1. imbed in quartz sand by mine drill, heated quartz sand to 820 ~ 850 DEG C, soaking time is diameter × 0.5 ~ 0.6 minute of mine drill;
2. be warming up to 1000 ~ 1020 DEG C, soaking time is diameter × (0.2 ~ 0.25) minute of mine drill;
3. from quartz sand, take out mine drill, cool in the quenching oil of 90 DEG C;
4. from quenching oil, take out mine drill, imbed the quartz sand of room temperature state, until mine drill cool to room temperature;
5. apply the 5:1 mixture of activated carbon powder and calcium carbonate on mine drill after, be placed in stove tempering, tempering temperature is 500 ~ 550 DEG C, then naturally cools to room temperature in atmosphere;
6. tempering temperature heightened to 600 ~ 650 DEG C, repeating step tempering step 5., namely completes the thermal treatment of mine drill.
In above-mentioned mine drill heat treating method, the material of described mine drill, by mass percentage, comprise the C of 0.30% ~ 0.40%, 0.30% ~ 0.40% Si, the Mn of 0.30% ~ 0.40%, Cr, the W of 7.50% ~ 9.00%, V, the P of 0.020% ~ 0.030%, the S of 0.020% ~ 0.030% of 0.20% ~ 0.50% of 2.20% ~ 2.70%, surplus is Fe.
Compared with prior art, the present invention carries out multistage insulation by using quartzy sand bath, carries out repeatedly carbon-bearing tempering, greatly can improve hardness and the wear resistance of mine drill after quenching.Compared to without heat treated mine drill, substantially can 50% be extended work-ing life through heat treated mine drill of the present invention.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated, but not as the foundation limited the present invention.
Embodiment.A kind of mine drill heat treating method, the material of described mine drill, by mass percentage, comprise the C of 0.30% ~ 0.40%, 0.30% ~ 0.40% Si, the Mn of 0.30% ~ 0.40%, Cr, the W of 7.50% ~ 9.00%, V, the P of 0.020% ~ 0.030%, the S of 0.020% ~ 0.030% of 0.20% ~ 0.50% of 2.20% ~ 2.70%, surplus is Fe.Concrete heat treating method comprises the following steps:
1. imbed in quartz sand by mine drill, heated quartz sand to 820 ~ 850 DEG C, soaking time is diameter × 0.5 ~ 0.6 minute of mine drill;
2. be warming up to 1000 ~ 1020 DEG C, soaking time is diameter × (0.2 ~ 0.25) minute of mine drill;
3. from quartz sand, take out mine drill, cool in the quenching oil of 90 DEG C;
4. from quenching oil, take out mine drill, imbed the quartz sand of room temperature state, until mine drill cool to room temperature;
5. apply the 5:1 mixture of activated carbon powder and calcium carbonate on mine drill after, be placed in stove tempering, tempering temperature is 500 ~ 550 DEG C, then naturally cools to room temperature in atmosphere;
6. tempering temperature heightened to 600 ~ 650 DEG C, repeating step tempering step 5., namely completes the thermal treatment of mine drill.
Claims (2)
1. a mine drill heat treating method, is characterized in that, comprises the following steps:
1. imbed in quartz sand by mine drill, heated quartz sand to 820 ~ 850 DEG C, soaking time is diameter × 0.5 ~ 0.6 minute of mine drill;
2. be warming up to 1000 ~ 1020 DEG C, soaking time is diameter × (0.2 ~ 0.25) minute of mine drill;
3. from quartz sand, take out mine drill, cool in the quenching oil of 90 DEG C;
4. from quenching oil, take out mine drill, imbed the quartz sand of room temperature state, until mine drill cool to room temperature;
5. apply the 5:1 mixture of activated carbon powder and calcium carbonate on mine drill after, be placed in stove tempering, tempering temperature is 500 ~ 550 DEG C, then naturally cools to room temperature in atmosphere;
6. tempering temperature heightened to 600 ~ 650 DEG C, repeating step tempering step 5., namely completes the thermal treatment of mine drill.
2. mine drill heat treating method according to claim 1, it is characterized in that: the material of described mine drill, by mass percentage, comprise the C of 0.30% ~ 0.40%, 0.30% ~ 0.40% Si, the Mn of 0.30% ~ 0.40%, Cr, the W of 7.50% ~ 9.00%, V, the P of 0.020% ~ 0.030%, the S of 0.020% ~ 0.030% of 0.20% ~ 0.50% of 2.20% ~ 2.70%, surplus is Fe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310496704.8A CN104561500A (en) | 2013-10-21 | 2013-10-21 | Thermal treatment method for mining drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310496704.8A CN104561500A (en) | 2013-10-21 | 2013-10-21 | Thermal treatment method for mining drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104561500A true CN104561500A (en) | 2015-04-29 |
Family
ID=53078573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310496704.8A Pending CN104561500A (en) | 2013-10-21 | 2013-10-21 | Thermal treatment method for mining drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104561500A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105219928A (en) * | 2015-09-28 | 2016-01-06 | 安庆市华骐机械配件有限公司 | A kind of high strength corrosion resistant mine drill preparation method |
| CN105296713A (en) * | 2015-09-28 | 2016-02-03 | 安庆市华骐机械配件有限公司 | High-strength and corrosion-resistance coal cutting tooth |
| CN108504840A (en) * | 2018-05-24 | 2018-09-07 | 合肥汇之新机械科技有限公司 | A kind of heat treatment process of high-strength high temperature-resistant alloy tool steel bit |
| CN109913633A (en) * | 2019-03-27 | 2019-06-21 | 刘辉 | A kind of heat treatment process of screwdriver bit production |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3709628A (en) * | 1969-10-20 | 1973-01-09 | Osborn Mushet Tools Ltd | Twist drills |
| CN101275207A (en) * | 2007-03-27 | 2008-10-01 | 宝山钢铁股份有限公司 | H2S-corrosion-resistant tool joint for petroleum drill pipe and hot treatment method thereof |
| JP2012210671A (en) * | 2011-03-31 | 2012-11-01 | Mitsubishi Materials Corp | Drill made of alloy steel |
| CN103114194A (en) * | 2013-03-20 | 2013-05-22 | 沈阳飞机工业（集团）有限公司 | Thermal treatment process method of high-speed steel drill |
| CN103320697A (en) * | 2013-06-17 | 2013-09-25 | 中国石油集团渤海石油装备制造有限公司 | Drill rod pipe body applied to ultra-deep well working condition and manufacturing method thereof |
-
2013
- 2013-10-21 CN CN201310496704.8A patent/CN104561500A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3709628A (en) * | 1969-10-20 | 1973-01-09 | Osborn Mushet Tools Ltd | Twist drills |
| CN101275207A (en) * | 2007-03-27 | 2008-10-01 | 宝山钢铁股份有限公司 | H2S-corrosion-resistant tool joint for petroleum drill pipe and hot treatment method thereof |
| JP2012210671A (en) * | 2011-03-31 | 2012-11-01 | Mitsubishi Materials Corp | Drill made of alloy steel |
| CN103114194A (en) * | 2013-03-20 | 2013-05-22 | 沈阳飞机工业（集团）有限公司 | Thermal treatment process method of high-speed steel drill |
| CN103320697A (en) * | 2013-06-17 | 2013-09-25 | 中国石油集团渤海石油装备制造有限公司 | Drill rod pipe body applied to ultra-deep well working condition and manufacturing method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 王忠诚: "《热处理工实用手册》", 31 January 2013 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105219928A (en) * | 2015-09-28 | 2016-01-06 | 安庆市华骐机械配件有限公司 | A kind of high strength corrosion resistant mine drill preparation method |
| CN105296713A (en) * | 2015-09-28 | 2016-02-03 | 安庆市华骐机械配件有限公司 | High-strength and corrosion-resistance coal cutting tooth |
| CN108504840A (en) * | 2018-05-24 | 2018-09-07 | 合肥汇之新机械科技有限公司 | A kind of heat treatment process of high-strength high temperature-resistant alloy tool steel bit |
| CN109913633A (en) * | 2019-03-27 | 2019-06-21 | 刘辉 | A kind of heat treatment process of screwdriver bit production |
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Application publication date: 20150429 |