CN1241645A - Diamond saw blade base steel and its smelting process - Google Patents
Diamond saw blade base steel and its smelting process Download PDFInfo
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- CN1241645A CN1241645A CN 99107945 CN99107945A CN1241645A CN 1241645 A CN1241645 A CN 1241645A CN 99107945 CN99107945 CN 99107945 CN 99107945 A CN99107945 A CN 99107945A CN 1241645 A CN1241645 A CN 1241645A
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Abstract
The present invention relates to the field of alloy steel. The excellent base steel has the chemical components including C 0.2-0.3 wt%, Cr 1.0-1.5 wt%, Mo 0.2-0.5 wt%, Mn 0.65-1.3 wt% and Si 0.15-0.30 wt%. Its smelting process includes smelting, casting, rolling, heat treatment and cold machining and the heat treatment includes annealing at 600-800 deg.c, quenching at 820-920 deg.c and tempering at 350-500 deg.c.
Description
The invention belongs to field of alloy steel.Relate generally to matrix steel for diamond sawblade.
Diamond saw blade is widely used in the cutting processing of nonmetal hard material of construction (as stone material, cement products).Diamond saw blade is made up of diamond segment and saw bit matrix two portions.The moulding that engages of diamond segment and matrix (steel) has three kinds of methods: sintering process, ratio-frequency welding connection and method of laser welding usually.Method of laser welding is advanced joint forming method.
In the prior art, the diamond saw blade substrate material adopts medium carbon manganese steel, chrome-vanadium steel or Manganese Vanadium Steel usually, its carbon content (wt%) is all more than 0.5%, the steel alloy of high carbon content like this, not only plasticity and toughness are low, the coupling that obdurability can not be good, and weldability is poor, should not be used for advanced method of laser welding (" the synthetic and diamond fabrication of man-made diamond " press of Zhongnan Polytechnic Univ,, P168 in 1997; " mechanical engineering " 1997, No8, P10).
The object of the present invention is to provide a kind of method of laser welding that mainly is suitable for, and the matrix steel for diamond sawblade of excellent combination property and manufacture method thereof.
According to above-mentioned purpose, the chemical ingredients of matrix steel for diamond sawblade of the present invention (wt%) is: C 0.2-0.3%, Cr 1.0-1.5%, Mo 0.2-0.5%, Mn 0.65-1.3%, Si 0.15-0.30%.
The present invention at first adopts low carbon content, makes it in diamond saw blade is produced, and more is suitable for and adopts advanced method of laser welding to carry out the moulding that engages of diamond segment and matrix.Though method of laser welding is instantaneous heating,, all can worsen because of the raising of carbon content in the obdurability variation of welding joint and weld heat-affected zone, strain aging sensitivity, crack propagation susceptibility etc.For this reason, adopt method of laser welding, the carbon content of its diamond saw blade substrate should be hanged down as far as possible.But carbon content is low excessively, influences the intensity and the hardness of matrix steel again.So the carbon content of matrix steel of the present invention is controlled at 0.2-0.3%.
Diamond saw blade is in processing cutting non-metal hard mineral and cement products materials process, bear High Voltage, high-temperature effect and strong swing distortion, therefore, intensity, hardness and flexible cooperate to require matrix steel should have preferably, and good thermostability.Cr, Mn are the effective alloying elements that improves quenched and tempered steel intensity, but the temper brittleness tendency of steel is increased, in matrix steel of the present invention, add a small amount of Mo for this reason, not only can improve the heat resistance and the temper resistance of steel, and can reduce temper brittleness proneness, so matrix steel of the present invention adds The addition of C r, Mn, Mo element.
The manufacture method of matrix steel for diamond sawblade of the present invention comprises that steel grade smelts, is cast into that base, strand are rolling, sheet material rolls postheat treatment and cold working.
Existing division is as follows:
Steel grade is smelted: matrix steel of the present invention can be smelted in converter, adopts conventional the smelting to get final product.
Be cast into base: behind the smelting steel, its casting can be adopted die casting or sheet billet continuous casting.
Rolling: the die casting base carries out plate rolling again after cogging becomes slab, and continuous casting steel billet then can directly carry out plate rolling.
Roll postheat treatment: the sheet material thermal treatment of matrix steel of the present invention comprises anneal, quench treatment and temper.
Anneal is carried out behind plate rolling, and annealing temperature is 600-800 ℃, annealing soaking time 2-5 hour, and after the insulation, it is cold to carry out stove;
Sheet material is die-cut into saw bit matrix by the diamond saw blade diameter after anneal, then saw bit matrix is quenched and temper:
The quench treatment temperature is 820-920 ℃, Quenching Soaking Time 0.3-3 hour, carries out oil quenching after the insulation;
Carry out temper after the quenching, tempering temperature is 350-500 ℃, and tempering insulation time is 2-5 hour.
After tempered, promptly obtain diamond saw blade substrate of the present invention.
The matrix steel for diamond sawblade of producing according to the chemical ingredients and the manufacture method of matrix steel of the present invention has excellent mechanical property:
σ
b≥1100MPa
σ
0.2≥920MPa
A
k≥75J
HRC≥39
Compared with prior art, the present invention has following advantage:
(1) because carbon content is lower, weldability is better, is specially adapted to laser welding.
(2) good combination property except having suitable hardness, also has higher strength and toughness and thermostability.
(3) owing to good combination property, so this matrix steel has good use properties, long service life.
Embodiment
According to chemical ingredients of the present invention and manufacture method, smelted three batches of matrix steel for diamond sawblade of the present invention, the concrete chemical ingredients of three stove steel is as described in Table 1.Be cast into strand after the smelting, strand is cold rolling again one-tenth 2,2.5 and the thick thin plate of 3mm after hot rolling, sheet material is through anneal, it is cold to carry out stove after the annealing insulation, be die-cut into laser saw bit matrix blank afterwards again, then the matrix blank quenched and temper, the quench treatment heating is carried out in salt bath furnace, and oil quenching, carry out temper after the quenching again.The parameter that annealing, quenching and tempering are handled is as shown in table 2.The tempered processing of matrix blank therefrom cuts various mechanical property samples again, measures its hardness, tensile property and ballistic work, and measuring result is as shown in table 3.
The chemical ingredients (wt%) of table 1 embodiment three stove steel
| Lot number | ?C | ?Cr | ?Mo | ?Mn | ?Si |
| ?1 | ?0.28 | ?0.95 | ?0.21 | ?1.38 | ?0.21 |
| ?2 | ?0.26 | ?1.06 | ?0.23 | ?0.90 | ?0.19 |
| ?3 | ?0.25 | ?1.00 | ?0.20 | ?1.20 | ?0.17 |
The heat treatment parameter of three batches of sheet materials of table 2 embodiment
| Lot number | Thickness of slab mm | Anneal | Quench treatment | Temper | |||
| Temperature ℃ | Soaking time hr | Temperature ℃ | Soaking time hr | Temperature ℃ | Soaking time hr | ||
| 1 | 2 | 750 | 2 | 830 | 2.0 | 480 | 1.5 |
| 2 | 2.5 | 630 | 4 | 900 | 0.5 | 370 | 2.5 |
| 3 | 3 | 690 | 5 | 860 | 1.0 | 420 | 2.0 |
The The performance test results of three batches of matrix blanks of table 3 embodiment
Claims (2)
1, a kind of matrix steel for diamond sawblade is characterized in that the chemical ingredients (wt%) of this steel is: C0.2-0.3%, Cr 1.0-1.5%, Mo 0.2-0.5%, Mn 0.65-1.3%, Si 0.15-0.30%.
2, a kind of manufacture method of matrix steel for diamond sawblade, comprise steel grade smelting, be cast into base, strand rolling, roll back sheet material thermal treatment and cold working, it is characterized in that:
Sheet material thermal treatment comprises anneal, quench treatment and temper;
Anneal is carried out behind plate rolling, and annealing temperature is 600-800 ℃, annealing soaking time 2-5 hour, and after the insulation, it is cold to carry out stove;
Sheet material is die-cut into saw bit matrix by the diamond saw blade diameter after anneal, then saw bit matrix is quenched and temper:
The quench treatment temperature is 820-920 ℃, Quenching Soaking Time 0.3-3 hour, carries out oil quenching after the insulation;
Carry out temper after the quenching, tempering temperature is 350-500 ℃, and tempering insulation time is 2-5 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99107945 CN1241645A (en) | 1999-06-04 | 1999-06-04 | Diamond saw blade base steel and its smelting process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99107945 CN1241645A (en) | 1999-06-04 | 1999-06-04 | Diamond saw blade base steel and its smelting process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1241645A true CN1241645A (en) | 2000-01-19 |
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ID=5273047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 99107945 Pending CN1241645A (en) | 1999-06-04 | 1999-06-04 | Diamond saw blade base steel and its smelting process |
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| CN (1) | CN1241645A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101758560A (en) * | 2010-03-01 | 2010-06-30 | 安泰科技股份有限公司 | Marble cutting saw blade and preparation method thereof |
| CN102211232A (en) * | 2011-05-19 | 2011-10-12 | 黑旋风锯业股份有限公司 | Production method of super-thin diamond frame saw blade matrix |
| CN102296241A (en) * | 2011-08-16 | 2011-12-28 | 山西中条山建筑有限公司机电设备制造安装分公司 | Low carbon alloy cast steel and preparation method thereof |
| CN102337474A (en) * | 2011-08-19 | 2012-02-01 | 浙江约特工具有限公司 | Saw blade back material steel and application thereof to bimetal band saw blade |
| CN107675094A (en) * | 2017-09-11 | 2018-02-09 | 甘肃永靖昌盛铸钢有限责任公司 | It is a kind of to be used to make copper sulphur bag, the new material of cinder ladle |
| CN115679081A (en) * | 2022-11-01 | 2023-02-03 | 山东黑旋风锯业有限公司 | Ultrathin marble frame saw blade substrate with thickness of 1.0mm and production method thereof |
-
1999
- 1999-06-04 CN CN 99107945 patent/CN1241645A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101758560A (en) * | 2010-03-01 | 2010-06-30 | 安泰科技股份有限公司 | Marble cutting saw blade and preparation method thereof |
| CN102211232A (en) * | 2011-05-19 | 2011-10-12 | 黑旋风锯业股份有限公司 | Production method of super-thin diamond frame saw blade matrix |
| CN102211232B (en) * | 2011-05-19 | 2012-07-25 | 黑旋风锯业股份有限公司 | Production method of super-thin diamond frame saw blade matrix |
| CN102296241A (en) * | 2011-08-16 | 2011-12-28 | 山西中条山建筑有限公司机电设备制造安装分公司 | Low carbon alloy cast steel and preparation method thereof |
| CN102337474A (en) * | 2011-08-19 | 2012-02-01 | 浙江约特工具有限公司 | Saw blade back material steel and application thereof to bimetal band saw blade |
| CN102337474B (en) * | 2011-08-19 | 2013-05-15 | 浙江约特工具有限公司 | Saw blade back material steel and application thereof in bimetal band saw blade |
| CN107675094A (en) * | 2017-09-11 | 2018-02-09 | 甘肃永靖昌盛铸钢有限责任公司 | It is a kind of to be used to make copper sulphur bag, the new material of cinder ladle |
| CN115679081A (en) * | 2022-11-01 | 2023-02-03 | 山东黑旋风锯业有限公司 | Ultrathin marble frame saw blade substrate with thickness of 1.0mm and production method thereof |
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| WD01 | Invention patent application deemed withdrawn after publication |