CN1166801C - Matrix steel of diamond saw blade - Google Patents

Matrix steel of diamond saw blade Download PDF

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Publication number
CN1166801C
CN1166801C CNB021167532A CN02116753A CN1166801C CN 1166801 C CN1166801 C CN 1166801C CN B021167532 A CNB021167532 A CN B021167532A CN 02116753 A CN02116753 A CN 02116753A CN 1166801 C CN1166801 C CN 1166801C
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China
Prior art keywords
saw blade
diamond saw
steel
matrix steel
diamond
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Expired - Lifetime
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CNB021167532A
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CN1386883A (en
Inventor
杨春明
王黔丰
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HEIXUANFENG SAW INDUSTRY Co Ltd
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HEIXUANFENG SAW PRODUCT CO Ltd YICHANG
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Abstract

The present invention mainly relates to diamond saw blade matrix steel which belongs to the field of alloy steel. The diamond saw blade matrix steel comprises 0.35 to 0.65 wt% of C, 0.10 to 0.35 wt% of Si, 1.2 to 2.0 wt% of Mn, 0.06 to 0.20 wt% of V, 0.02 to 0.06 wt% of Al and Fe as the rest. After smelting and ingot casting, the diamond saw blade matrix steel is rolled at high temperature into plates to form blanks of diamond saw blade matrices, and then, the blanks of matrices are quenched and tempered to form diamond saw blade matrices. The diamond saw blade matrix steel of the present invention has the advantages of proper strength, low ratio of strength to toughness, favorable plastic toughness and heat stability, so that the service life of a product made of the diamond saw blade matrix steel is extended.

Description

Matrix steel for diamond sawblade
Technical field
The invention belongs to field of alloy steel, relate generally to matrix steel for diamond sawblade.
Background technology
Diamond saw blade is in nonmetal hard building material field widespread uses such as stone material, cement products.Diamond saw blade is made up of diamond block and saw bit matrix two portions, and both can engage by sintering process, ratio-frequency welding connection and method of laser welding and form.
As the steel grade of diamond saw blade substrate, both required to have enough intensity and good plasticity and toughness, also require to have higher hardening capacity and thermostability.
In the prior art, matrix as diamond saw blade, generally adopt all steel grades more than 0.65 (wt%) (as 65Mn, SKS5, SKS51,15LM, 80CrV and 75Cr1 etc.) of carbon content, these steel all belong to high carbon tool steel and high-carbon low-alloy tool steel class, are characterized in the intensity height, intensity/toughness is than high, plasticity and toughness are low, as diamond saw blade substrate, are prone to crackle in process of production, be difficult for smoothing, work-ing life is low; Should not adopt advanced method of laser welding etc. to engage.
Summary of the invention
The object of the present invention is to provide a kind of both had proper intensity and lower intensity/toughness ratio, plasticity and toughness are preferably arranged again, and the matrix steel for diamond sawblade of good thermally-stabilised and hardening capacity.
At above-mentioned purpose, the Chemical Composition of the matrix steel for diamond sawblade that the present invention is designed (weight %) is:
C 0.35~0.65%, and Si 0.10~0.35%, and Mn 1.3~2.0%, and V 0.06~0.20%, Al0.02~0.06%, and surplus is Fe.
Can be designated as the 50Mn2VAl steel according to above-mentioned Chemical Composition steel of the present invention, the present invention adopts medium carbon content, manganese addition, vanadium, aluminium.
Middle carbon manganese addition can improve the hardening capacity of steel, guarantees proper intensity.
Adding V, Al then can crystal grain thinning, and in the smelting process of steel, the C in V and the molten steel forms VC, and Al then forms AlN, Al with N and O 2O 3, VC and AlN, Al 2O 3All be thinner particle, be distributed on the crystal boundary, cause the grain refining of steel, improve the plasticity and toughness of steel greatly, make it lower intensity/toughness ratio.
This steel also has thermostability preferably owing to the refinement of crystal grain, and it is overheated therefore to be difficult for causing when quenching heating and welding heating, can keep stable performance, is not prone to crackle.And higher because of impelling strength, also be difficult for collapsing tooth.
The manufacture method of matrix steel for diamond sawblade 50Mn2VAl of the present invention is as follows:
1, smelts
This steel can adopt converter or electrosmelting, is cast into ingot or continuously cast bloom afterwards.
2, rolling
Ingot casting or Hot Charging of Continuous Casting Slab are rolled into sheet material.
3, thermal treatment
Sheet material after the hot rolling is quenched and tempering heat treatment, and the processing parameter of its Q-tempering is as follows:
Quenching process parameters: Heating temperature: 800~860 ℃, heat-up time: 10~40 minutes, quenchant was a machine oil.
Tempering process parameters: Heating temperature: 350~460 ℃, tempering time: 2~5 hours
Hot-rolled sheet with matrix steel for diamond sawblade of the present invention is a blank, after heat treatment can obtain the mechanical property shown in the table 1.
Table 1: the mechanical property after the thermal treatment of the present invention
σ b Mpa σ s MPa δ 5 ψ % α k J/cm 2 HRC
1400~1520 1300~1450 10~15 40~55 40~55 41~46
Compared with prior art, the present invention has following advantage:
1, existing proper intensity and lower intensity/toughness ratio have plasticity and toughness preferably again, make it not to be prone to crackle in the manufacturing processed as diamond saw blade substrate, be out of shape little, the yield rate height.
2, because matrix steel has thermally-stabilised preferably and hardening capacity, in the time of guaranteeing to be used for saw bit matrix, be easy to smoothing, make it to reach and hold jumping, tension value, recovery and planeness index preferably, and have better stability.
Embodiment
Adopt Chemical Composition of the present invention and production method, produced 3 stoves (promptly 3 batches) matrix steel for diamond sawblade.The Chemical Composition of 3 stove steel is as shown in table 2.3 stove steel through smelt, ingot casting, and be rolled into the thick sheet material of 5mm, the hot-rolled sheet thick with this 5mm is the matrix blank, heat-treats then.The process of thermal treatment parameter is as shown in table 3.3 batches of matrixes are taken a sample after treatment, are processed into corresponding sample, carry out mechanical properties test, and its result lists table 4 in.
The Chemical Composition (weight %) of table 2 embodiment steel grade
Become stove part number C Si Mn V Al Fe
1 0.60 0.21 1.30 0.14 0.04 Surplus
2 0.51 0.19 1.40 0.12 0.03 Surplus
3 0.39 0.23 1.60 0.12 0.05 Surplus
Table 3 embodiment steel heat processing parameter
Figure C0211675300061
Mechanical property after the thermal treatment of table 4 embodiment steel grade
Figure C0211675300062
Annotate: data are the mean value of a plurality of samples in the table.

Claims (1)

1, a kind of matrix steel for diamond sawblade is characterized in that Chemical Composition (weight %) is:
C 0.35~0.65%, and Si 0.10~0.35%, and Mn 1.3~2.0%, and V 0.06~0.20%, Al0.02~0.06%, and surplus is Fe.
CNB021167532A 2002-05-09 2002-05-09 Matrix steel of diamond saw blade Expired - Lifetime CN1166801C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB021167532A CN1166801C (en) 2002-05-09 2002-05-09 Matrix steel of diamond saw blade

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB021167532A CN1166801C (en) 2002-05-09 2002-05-09 Matrix steel of diamond saw blade

Publications (2)

Publication Number Publication Date
CN1386883A CN1386883A (en) 2002-12-25
CN1166801C true CN1166801C (en) 2004-09-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNB021167532A Expired - Lifetime CN1166801C (en) 2002-05-09 2002-05-09 Matrix steel of diamond saw blade

Country Status (1)

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CN (1) CN1166801C (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100351416C (en) * 2002-12-27 2007-11-28 王新辉 Steel for granite saw blade
CN100366779C (en) * 2005-07-29 2008-02-06 宝山钢铁股份有限公司 Stone material cutting saw blade steel and its manufacturing method
CN101358321B (en) * 2008-09-08 2012-02-22 杭州钢铁集团公司 HG20 back material steel for high strength and toughness bimetallic strip saw blade
CN103243204A (en) * 2013-05-13 2013-08-14 哈尔滨工业大学 Strengthening and toughening heat treatment method of medium carbon manganese-vanadium low alloy steel
CN104178691A (en) * 2014-08-22 2014-12-03 首钢总公司 High-strength steel for metallurgical saw blades and heat treatment method thereof
CN115740459A (en) * 2022-11-21 2023-03-07 泉州市华兴超硬工具有限公司 High-precision diamond saw blade production process

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Publication number Publication date
CN1386883A (en) 2002-12-25

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Owner name: HEIXUANFENG SAWS CO., LTD.

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Effective date: 20090327

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Address after: No. 8, Dalian Road, Dongshan Development Zone, Hubei, Yichang

Patentee after: Heixuanfeng Saw Industry Co., Ltd.

Address before: Hubei province Yichang City Kiln Road No. 22-1

Patentee before: Heixuanfeng Saw Product Co., Ltd, Yichang

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