CN104120363A - A low-carbon low-chromium wear-resistant liner plate - Google Patents
A low-carbon low-chromium wear-resistant liner plate Download PDFInfo
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- CN104120363A CN104120363A CN201410332410.6A CN201410332410A CN104120363A CN 104120363 A CN104120363 A CN 104120363A CN 201410332410 A CN201410332410 A CN 201410332410A CN 104120363 A CN104120363 A CN 104120363A
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- liner plate
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- proof backing
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Abstract
A low-carbon low-chromium wear-resistant liner plate is disclosed. The liner plate comprises following components by mass: 0.9-0.95% of C, 1.6-1.7% of Mn, 1.0-1.1% of Si, 2.9-3.0% of Cr, 0.015-0.02% of V, not more than 0.02% of S, not more than 0.02% of P, and 0.08-0.1% of Re, with the balance being Fe. The liner plate has characteristics of good wear resistance and high toughness. The Cr enhances hardenability and corrosion resistance. The Re enhances plasticity, hardness and strength of the liner plate, and enhances toughness of the liner plate. The service lifetime is 11000-11500 h. In addition, the liner plate is low in alloy content, reduced in cost and high in performance cost ratio.
Description
Technical field
The present invention relates to abrasion-proof backing block technical field, be specifically related to the low chromium abrasion-proof backing block of a kind of low-carbon (LC).
Background technology
Abrasion-proof backing block refers to that wear-resisting steel plate processes various abrasion-proof backing blocks by production technique such as cutting, roll bending distortion, punching and welding, as transfer roller liner plate, feeder base plate/cyclonic separator back taper and liner plate, abrasion-resistant blade etc., friction durability, comparable general steel plate improved more than 15 times.China will consume approximately 200,000 tons of lining board of grinder every year, and approximately 200,000 tons of lining board of crushers are worth nearly 2,000,000,000 yuan, and the loss that therefore reduces lining material has very important economic implications.Production and the application of lining material both at home and abroad passed through the development of more than 30 year, successively experienced high mangaenese steel, ordinary white cast iron, ni-hard cast iron, rich chromium cast iron to the developmental stage of Hadfield Steel and various several materials such as middle-low alloy steel of smelting by Q-tempering technique.In described several materials, the good but poor toughness of the wear resistance of rich chromium cast iron.The toughness of Hadfield Steel is high, and original hardness is low, in use mainly relies on austenite work hardening to improve its hardness, under high impact loads condition, can obtain good result of use, but under medium and small shock load condition, use, austenite can not fully harden, and it wears no resistance.
In Chinese Patent Application No.: disclose a kind of abrasion-proof backing block of long service life in 201310727204, belonged to abrasion-proof backing block technical field.On abrasion-proof backing block of the present invention, offer open holes, abrasion-proof backing block is comprised of following component and mass percent thereof: C:3.0～3.2%, Si:0.3～0.4%, Mn:0.5～0.7%, Cr:2～3%, Mo:2.8～3.1%, Cu:0.8～1.2%, V:8～9%, B:0.002～0.003%, Sn:0.04～0.05%, Te:0.02～0.03%, Ce:0.01～0.02%, Zr:0.03～0.04%, Y:0.004～0.005%, P:0.01～0.02%, S:0.001～0.002%, surplus is Fe and inevitable impurity, wherein: Cu/Sn=20～24.The alloying element containing in this technical scheme is too much, causes cost to increase, and this technical scheme haves much room for improvement.
Summary of the invention
For the problems referred to above, the invention provides the low chromium abrasion-proof backing block of a kind of low-carbon (LC), have advantages of that cost is low, wear resistance good.
In order to address the above problem, technical scheme provided by the invention is:
The low chromium abrasion-proof backing block of a kind of low-carbon (LC), by following composition and mass percent thereof, formed: C:0.9-0.95%, Mn:1.6-1.7%, Si:1.0-1.1%, Cr:2.9-3.0%, V:0.015-0.02%, S :≤0.02%, P :≤0.02%, Re:0.08-0.1%, surplus is Fe.
Preferably, by following composition and mass percent thereof, formed: C:0.92-0.95%, Mn:1.64-1.7%, Si:1.05-1.1%, Cr:2.94-3.0%, V:0.016-0.02%, S :≤0.02%, P :≤0.02%, Re:0.085-0.1%, surplus is Fe.
Preferably, by following composition and mass percent thereof, formed: C:0.94%, Mn:1.66%, Si:1.08%, Cr:2.98%, V:0.017%, S:0.02%, P:0.01%, Re:0.095%, surplus is Fe.
Preferably, by following composition and mass percent thereof, formed: C:0.93%, Mn:1.68%, Si:1.06%, Cr:2.96%, V:0.018%, S:0.01%, P:0.02%, Re:0.092%, surplus is Fe.
Compared with prior art, beneficial effect of the present invention is:
Abrasion-proof backing block wear resistance of the present invention is good, and toughness is high; Cr improves hardening capacity, erosion resistance; Re is conducive to improve plasticity, hardness, the intensity of abrasion-proof backing block, can improve again the toughness of abrasion-proof backing block; Long service life is 11000-11500 hours, and alloy content is low simultaneously, has reduced cost, and cost performance is high.
Embodiment
Below the present invention will be further described:
Embodiment 1:
The low chromium abrasion-proof backing block of low-carbon (LC), is comprised of following composition and mass percent thereof: C:0.94%, Mn:1.66%, Si:1.08%, Cr:2.98%, V:0.017%, S:0.02%, P:0.01%, Re:0.095%, surplus is Fe.
Embodiment 2:
The low chromium abrasion-proof backing block of low-carbon (LC), is comprised of following composition and mass percent thereof: C:0.93%, Mn:1.68%, Si:1.06%, Cr:2.96%, V:0.018%, S:0.01%, P:0.02%, Re:0.092%, surplus is Fe.
Embodiment 3:
The low chromium abrasion-proof backing block of low-carbon (LC), is comprised of following composition and mass percent thereof: C:0.9%, Mn:1.7%, Si:1.0%, Cr:3.0%, V:0.015%, S:0.02%, P:0.02%, Re:0.08%, surplus is Fe.
Embodiment 4:
The low chromium abrasion-proof backing block of low-carbon (LC), is comprised of following composition and mass percent thereof: C:0.95%, Mn:1.6%, Si:11.1%, Cr:2.9%, V:0.02%, S:0.01%, P:0.02%, Re:0.1%, surplus is Fe.
Embodiment 5:
The low chromium abrasion-proof backing block of low-carbon (LC), is comprised of following composition and mass percent thereof: C:0.9%, Mn:1.6%, Si:1.0%, Cr:3.0%, V:0.02%, S:0.02%, P:0.01%, Re:0.1%, surplus is Fe.
More than show and described ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (4)
1. the low chromium abrasion-proof backing block of low-carbon (LC), it is characterized in that: by following composition and mass percent thereof, formed: C:0.9-0.95%, Mn:1.6-1.7%, Si:1.0-1.1%, Cr:2.9-3.0%, V:0.015-0.02%, S :≤0.02%, P :≤0.02%, Re:0.08-0.1%, surplus is Fe.
2. the low chromium abrasion-proof backing block of low-carbon (LC) according to claim 1, it is characterized in that: by following composition and mass percent thereof, formed: C:0.92-0.95%, Mn:1.64-1.7%, Si:1.05-1.1%, Cr:2.94-3.0%, V:0.016-0.02%, S :≤0.02%, P :≤0.02%, Re:0.085-0.1%, surplus is Fe.
3. the low chromium abrasion-proof backing block of low-carbon (LC) according to claim 1 and 2, it is characterized in that: by following composition and mass percent thereof, formed: C:0.94%, Mn:1.66%, Si:1.08%, Cr:2.98%, V:0.017%, S:0.02%, P:0.01%, Re:0.095%, surplus is Fe.
4. the low chromium abrasion-proof backing block of low-carbon (LC) according to claim 1 and 2, it is characterized in that: by following composition and mass percent thereof, formed: C:0.93%, Mn:1.68%, Si:1.06%, Cr:2.96%, V:0.018%, S:0.01%, P:0.02%, Re:0.092%, surplus is Fe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410332410.6A CN104120363A (en) | 2014-07-11 | 2014-07-11 | A low-carbon low-chromium wear-resistant liner plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410332410.6A CN104120363A (en) | 2014-07-11 | 2014-07-11 | A low-carbon low-chromium wear-resistant liner plate |
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| Publication Number | Publication Date |
|---|---|
| CN104120363A true CN104120363A (en) | 2014-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410332410.6A Pending CN104120363A (en) | 2014-07-11 | 2014-07-11 | A low-carbon low-chromium wear-resistant liner plate |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106987778A (en) * | 2017-04-07 | 2017-07-28 | 莒州集团有限公司 | Coal pulverizer is with new strike wheel plate |
| CN107586923A (en) * | 2017-10-23 | 2018-01-16 | 宁国市正兴耐磨材料有限公司 | A kind of making low-carbon low-chromium alloy wear-resistant ball quenching technical |
| CN108677108A (en) * | 2018-06-11 | 2018-10-19 | 徐州华钢耐磨材料有限公司 | A kind of low chromium wear-resistant liner of low-carbon |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5858254A (en) * | 1981-09-30 | 1983-04-06 | Daido Steel Co Ltd | Alloy steel |
| CN1059940A (en) * | 1991-06-24 | 1992-04-01 | 河北工学院 | High-toughness antiwear lining plate of big ball mill and manufacturing process thereof |
| CN1109919A (en) * | 1995-03-28 | 1995-10-11 | 王宇辉 | Low-alloy wear-resisting steel |
-
2014
- 2014-07-11 CN CN201410332410.6A patent/CN104120363A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5858254A (en) * | 1981-09-30 | 1983-04-06 | Daido Steel Co Ltd | Alloy steel |
| CN1059940A (en) * | 1991-06-24 | 1992-04-01 | 河北工学院 | High-toughness antiwear lining plate of big ball mill and manufacturing process thereof |
| CN1109919A (en) * | 1995-03-28 | 1995-10-11 | 王宇辉 | Low-alloy wear-resisting steel |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106987778A (en) * | 2017-04-07 | 2017-07-28 | 莒州集团有限公司 | Coal pulverizer is with new strike wheel plate |
| CN107586923A (en) * | 2017-10-23 | 2018-01-16 | 宁国市正兴耐磨材料有限公司 | A kind of making low-carbon low-chromium alloy wear-resistant ball quenching technical |
| CN107586923B (en) * | 2017-10-23 | 2018-12-07 | 宁国市正兴耐磨材料有限公司 | A kind of making low-carbon low-chromium alloy wear-resistant ball quenching technical |
| CN108677108A (en) * | 2018-06-11 | 2018-10-19 | 徐州华钢耐磨材料有限公司 | A kind of low chromium wear-resistant liner of low-carbon |
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Application publication date: 20141029 |
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| RJ01 | Rejection of invention patent application after publication |