CN107574369A - A kind of Wear-resisting steel plate for mining machinery - Google Patents
A kind of Wear-resisting steel plate for mining machinery Download PDFInfo
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- CN107574369A CN107574369A CN201710897955.5A CN201710897955A CN107574369A CN 107574369 A CN107574369 A CN 107574369A CN 201710897955 A CN201710897955 A CN 201710897955A CN 107574369 A CN107574369 A CN 107574369A
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- resisting steel
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Abstract
The present invention relates to a kind of Wear-resisting steel plate for mining machinery, belong to mine mechanism technical field, it is characterised in that：The wear-resisting steel plate is made up of with (weight) percentages following component：C：0.7 0.9%, Si：0.6 0.8%, Mn：1.6 1.8%, P≤0.015%, S≤0.01%, Mo：0.04 0.06%, Ti：0.1 0.15%, N：0.02 0.04%, Al：0.02 0.06%, B：0.006 0.01%, remaining is iron Fe and inevitable impurity, and titanium carbide, titanium boride and aluminum nitride compound, these compounds Dispersed precipitate in steel matrix are formed between Ti, N, Al, B and between C in the wear-resisting steel plate.The beneficial effects of the invention are as follows：Significantly improve wear-resisting steel plate case hardness, wear resistance and toughness.
Description
Technical field
The present invention relates to mine mechanism technical field, more particularly to a kind of Wear-resisting steel plate for mining machinery.
Background technology
Abrasion-resistant stee applies to a kind of high-abrasive material of various wear working conditions, be widely used in metallurgy, mine, building materials,
In each department such as electric power, railway and military affairs, as excavator bucket teeth, ball grinding machine lining board, crusher jaw, tractor shoe,
Fan mill shock plate and railway switch etc.；Current wear-resisting steel plate hardness, wear resistance and toughness does not reach requirement.
The content of the invention
In order to solve the above technical problems, one aspect of the present invention is：A kind of mining machinery is provided with wear-resisting
Steel plate.
The purpose of the present invention is achieved through the following technical solutions：A kind of Wear-resisting steel plate for mining machinery, its feature
It is：The wear-resisting steel plate is made up of with (weight) percentages following component：C：0.7-0.9%, Si：0.6-0.8%, Mn：
1.6-1.8%, P≤0.015%, S≤0.01%, Mo：0.04-0.06%, Ti：0.1-0.15%, N：0.02-0.04%, Al：
0.02-0.06%, B：0.006-0.01%, remaining is iron Fe and inevitable impurity, Ti, N, Al, B in the wear-resisting steel plate
Between and form between C titanium carbide, titanium boride and aluminum nitride compound, these compounds Dispersed precipitate in steel matrix.
Preferably, above-mentioned chemical composition smelted, cast, being heated, being rolled, being cooled down, being quenched and tempering step.
Preferably, in the heating stepses, heating-up temperature is 1050~1200 DEG C.
Preferably, in the milling step, start rolling temperature is 900~980 DEG C, and finishing temperature is 800~900 DEG C, is rolled
Air cooling afterwards.
Preferably, in the quenching Step, hardening heat is Ac3+0~100 DEG C.
Preferably, in the tempering step, temperature is 150~400 DEG C.
The beneficial effects of the invention are as follows：
Titanium carbide, titanium boride and aluminum nitride compound, these chemical combination are formed in the present invention between Ti, N, Al, B and between C
Thing Dispersed precipitate in steel matrix, significantly improve wear-resisting steel plate case hardness, wear resistance and toughness.
Embodiment
The present invention will be further described below, but protection scope of the present invention be not limited to it is as described below.
Embodiment 1：
A kind of Wear-resisting steel plate for mining machinery, it is characterised in that：The wear-resisting steel plate is with (weight) percentages by following component
Composition：C：0.7%, Si：0.6%, Mn：1.6%, P：0.005%, S：0.005%, Mo：0.04%, Ti：0.1%, N：
0.02%, Al：0.02%, B：0.006%, remaining is iron Fe and inevitable impurity, Ti, N, Al, B in the wear-resisting steel plate
Between and form between C titanium carbide, titanium boride and aluminum nitride compound, these compounds Dispersed precipitate in steel matrix.
Above-mentioned chemical composition is smelted, cast, is heated, is rolled, is cooled down, is quenched and tempering step.
In the heating stepses, heating-up temperature is 1050 DEG C.
In the milling step, start rolling temperature is 900 DEG C, and finishing temperature is 800 DEG C, rolls rear air cooling.
In the quenching Step, hardening heat is Ac3+30 DEG C.
In the tempering step, temperature is 200 DEG C.
Case hardness, wear resistance and the toughness of wear-resisting steel plate are examined, is met the requirements.
Embodiment 2：
A kind of Wear-resisting steel plate for mining machinery, it is characterised in that：The wear-resisting steel plate is with (weight) percentages by following component
Composition：C：0.9%, Si：0.8%, Mn：1.8%, P：0.01%, S：0.08%, Mo：0.06%, Ti：0.15%, N：
0.04%, Al：0.06%, B：0.01%, remaining is iron Fe and inevitable impurity, Ti, N, Al, B in the wear-resisting steel plate
Between and form between C titanium carbide, titanium boride and aluminum nitride compound, these compounds Dispersed precipitate in steel matrix.
Above-mentioned chemical composition is smelted, cast, is heated, is rolled, is cooled down, is quenched and tempering step.
In the heating stepses, heating-up temperature is 1200 DEG C.
In the milling step, start rolling temperature is 980 DEG C, and finishing temperature is 900 DEG C, rolls rear air cooling.
In the quenching Step, hardening heat is Ac3+80 DEG C.
In the tempering step, temperature is 400 DEG C.
Case hardness, wear resistance and the toughness of wear-resisting steel plate are examined, is met the requirements.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, there can be various modifications and variations in the spirit and principles in the present invention, these equivalent modifications or replacement etc.,
It is all contained within protection scope of the present invention.
Claims (6)
- A kind of 1. Wear-resisting steel plate for mining machinery, it is characterised in that：The wear-resisting steel plate is with (weight) percentages by following group Part composition：C：0.7-0.9%, Si：0.6-0.8%, Mn：1.6-1.8%, P≤0.015%, S≤0.01%, Mo：0.04- 0.06%, Ti：0.1-0.15%, N：0.02-0.04%, Al：0.02-0.06%, B：0.006-0.01%, remaining be iron Fe and Inevitable impurity, titanium carbide, titanium boride and nitridation are formed in the wear-resisting steel plate between Ti, N, Al, B and between C Aluminium compound, these compounds Dispersed precipitate in steel matrix.
- 2. the manufacture method of the Wear-resisting steel plate for mining machinery described in claim 1, it is characterised in that：Above-mentioned chemical composition is entered Row smelt, casting, heating, rolling, cooling, quenching and tempering step.
- 3. the manufacture method of high-flexibility wear-resistant steel plate according to claim 2, it is characterised in that：In the heating stepses In, heating-up temperature is 1050~1200 DEG C.
- 4. the manufacture method of high-flexibility wear-resistant steel plate according to claim 2, it is characterised in that：In the milling step In, start rolling temperature is 900~980 DEG C, and finishing temperature is 800~900 DEG C, rolls rear air cooling.
- 5. the manufacture method of high-flexibility wear-resistant steel plate according to claim 2, it is characterised in that：In the quenching Step In, hardening heat is Ac3+0~100 DEG C.
- 6. the manufacture method of high-flexibility wear-resistant steel plate according to claim 2, it is characterised in that：In the tempering step In, temperature is 150~400 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710897955.5A CN107574369A (en) | 2017-09-28 | 2017-09-28 | A kind of Wear-resisting steel plate for mining machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710897955.5A CN107574369A (en) | 2017-09-28 | 2017-09-28 | A kind of Wear-resisting steel plate for mining machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107574369A true CN107574369A (en) | 2018-01-12 |
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ID=61039382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710897955.5A Withdrawn CN107574369A (en) | 2017-09-28 | 2017-09-28 | A kind of Wear-resisting steel plate for mining machinery |
Country Status (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109207859A (en) * | 2018-11-27 | 2019-01-15 | 汪杨志 | A kind of Wear-resisting steel plate for mining machinery |
| CN112899556A (en) * | 2019-12-03 | 2021-06-04 | 湖南荣威煤机制造有限公司 | Wear-resistant steel plate for mining machinery |
-
2017
- 2017-09-28 CN CN201710897955.5A patent/CN107574369A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109207859A (en) * | 2018-11-27 | 2019-01-15 | 汪杨志 | A kind of Wear-resisting steel plate for mining machinery |
| CN112899556A (en) * | 2019-12-03 | 2021-06-04 | 湖南荣威煤机制造有限公司 | Wear-resistant steel plate for mining machinery |
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| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180112 |
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| WW01 | Invention patent application withdrawn after publication |