CN102925813B - Wear-resisting and anti-cracking composite cutter ring - Google Patents
Wear-resisting and anti-cracking composite cutter ring Download PDFInfo
- Publication number
- CN102925813B CN102925813B CN201210470685.7A CN201210470685A CN102925813B CN 102925813 B CN102925813 B CN 102925813B CN 201210470685 A CN201210470685 A CN 201210470685A CN 102925813 B CN102925813 B CN 102925813B
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- 238000005336 cracking Methods 0.000 title claims abstract description 10
- 239000002131 composite material Substances 0.000 title abstract 3
- 238000005520 cutting process Methods 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 10
- 150000001875 compounds Chemical class 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 abstract description 6
- 239000011435 rock Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 230000000750 progressive effect Effects 0.000 abstract description 2
- 229910000851 Alloy steel Inorganic materials 0.000 abstract 1
- 229910019932 CrNiMo Inorganic materials 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 229910052748 manganese Inorganic materials 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 229910052758 niobium Inorganic materials 0.000 abstract 1
- 230000008092 positive effect Effects 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 abstract 1
- 229910052720 vanadium Inorganic materials 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000007669 thermal treatment Methods 0.000 description 3
- 229910000734 martensite Inorganic materials 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
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- Cutting Tools, Boring Holders, And Turrets (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a wear-resisting and anti-cracking composite cutter ring which is characterized by comprising a cutter body, wherein a blade groove is formed in the cutter body, and a blade material is cast in the blade groove, so that the blade compounded with the cutter body is formed; the cutter body is made of 40 CrNiMo; the blade material comprises the components by mass percent: 1.6 to 1.9 percent of C, 0.8 to 1.5 percent of Mn, 0.15 to 0.25 percent of Si, 4.5 to 7.5 percent of Cr, 3 to 5 percent of W, 1.3 to 2 percent of Mo, 4 to 7 percent of Ti, 1 percent of V, 1.5 to 2.5 percent of Nb, and the balance of Fe. The wear-resisting and anti-cracking composite cutter ring has the positive and progressive effects that a process completely different from the foreign process is adopted, and the overseas blockade is broken through the technology; the service life of the product is higher than that of the foreign product, and the cost is lower than that of the domestic product; the use amount of high-alloy steel is 30% of that of the previous product, so that the resource waste is reduced; and radial width of cutting edges are consistent, and during driving, the pressure intensity of a hobbing cutter ring on rocks can be kept unchanged, and the drivage efficiency is ensured.
Description
Technical field
The present invention relates to shield engine and rock tunnel(ling) machine hobboing cutter cutter ring, specifically refer to a kind of wear-resisting, compound cutter ring of cracking resistance.
Background technology
State's external knife ring present situation: in developed country, shield structure, rock tunnel(ling) machine and cutter product and technology are quite ripe.Wherein cutter product and technology are mainly by the Luo Binsi company of the U.S., the Wei Erte company of Germany, extra large Rake company, CTS Corp., Mitsubishi heavy industry, Kawasaki Heavy Industries, Ishikawa island heavy industry, Canadian Luo Fute company and the monopolization of Deng Shiyuge major company of Italian SPA company.Wherein, Luo Binsi company of the top-quality U.S. and German Wei Erte company, be patented product, captured approximately 50% the market share.The material of Luo Binsi company cutter ring is Hi-Stren steel, adopts and quenches and low-temperaturetempering acquisition tempered martensite, reaches the object of high-intensity high-tenacity.And the material that German Wei Erte company selects is hot-work die steel, below 600 DEG C, tempering also obtains tempered martensite, and is the tiny carbide particle that main disperse distributes with a large amount of MC and MbC type, has higher wear resistance than U.S. Luo Binsi.External cutter ring core technology is metallic substance and thermal treatment process.Aspect thermal treatment process, by layering thermal treatment, obtain the cutting edge of high rigidity and the cutter hub of high tenacity, thereby improve tool edge wear-proof and cutter hub cracking resistance over-all properties.
Domestic cutter ring present situation: shield structure, rock tunnel(ling) machine and the cutter of China, compare technically external product relatively backward.Because domestic needs increases rapidly, much universities, institute, enterprise carry out the research and development efforts of shield cutter one after another, and wherein most of in the imitated stage, the main metal ingredient by analysis state external knife ring, intensity, hardness etc., make steel imitated voluntarily.But crucial core technology, heat treatment technics cannot be obtained, cutter hub is the same with edge hardness, cause hardness low not wear-resisting and cutting edge viscous deformation, and hardness height easily cause cutter ring fracture.In general, state of the art is lower, and does not all realize production in enormous quantities.
External and home products also has a common shortcoming: along with cutter ring wearing and tearing, cutting edge broadens, and the pressure that cutter ring imposes on rock reduces gradually, and the jacking force that must improve cutterhead ensures the operating pressure of cutting edge.Therefore cause energy consumption increase, machine utilization to increase.
Summary of the invention
The present invention, in order to solve the above-mentioned deficiency of prior art, provides a kind of wear-resisting, compound cutter ring of cracking resistance.Its wear resistance, splitting resistance are good, excellent combination property.
The present invention solves above-mentioned technical problem by following technical proposals: a kind of wear-resisting, compound cutter ring of cracking resistance, it is characterized in that: comprise cutter hub, described cutter hub is provided with blade groove, in described blade groove, be cast with cutting edge material, formation is compound in the blade of cutter hub, and described cutter hub is made up of 40CrNiMo; Described cutting edge material, is made up of following component in quality %: C:1.6 ~ 1.9%; Mn:0.8 ~ 1.5%; Si:0.15 ~ 0.25%; Cr:4.5 ~ 7.5%; W:3 ~ 5%; Mo:1.3 ~ 2%; Ti:4 ~ 7%; V:1%; Nb:1.5 ~ 2.5%; Fe: surplus.
The present invention has following positive progressive effect: adopt and external diverse technique, break technically external blockade; Product life is higher than external product, and cost is lower than home products; High quality steel consumption is 30% of previous product, reduces the wasting of resources; Ensure that cutting edge is consistent in radial width, in tunneling process, can remain that hobboing cutter cutter ring imposes on the pressure of rock constant, ensure drivage efficiency.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to describe technical scheme of the present invention in detail.
With reference to figure 1, a kind of wear-resisting, compound cutter ring of cracking resistance, is characterized in that: comprise cutter hub 1, described cutter hub 1 is provided with blade groove 2, in described blade groove 2, is cast with cutting edge material, forms the blade 3 that is compound in cutter hub 1, and described cutter hub 1 is made up of 40CrNiMo; Described cutting edge material, is made up of following component in quality %: C:1.6 ~ 1.9%; Mn:0.8 ~ 1.5%; Si:0.15 ~ 0.25%; Cr:4.5 ~ 7.5%; W:3 ~ 5%; Mo:1.3 ~ 2%; Ti:4 ~ 7%; V:1%; Nb:1.5 ~ 2.5%; Fe: surplus.
Illustrate and described above embodiments of the invention with reference to accompanying drawing, but the invention is not restricted to this.Obviously, those skilled in the art can carry out various amendments, modification and replacement and not depart from spiritual scope of the present invention the present invention.Therefore, as long as within these amendments of the present invention, modification and replacement belong to the scope of claims of the present invention and equivalent technical solutions thereof, the present invention is also intended to comprise these amendments, modification and replacement.
Claims (1)
1. the compound cutter ring of wear-resisting, cracking resistance, is characterized in that: comprise cutter hub, described cutter hub is provided with blade groove, in described blade groove, is cast with cutting edge material, forms the blade that is compound in cutter hub, and described cutter hub is made up of 40CrNiMo; Described cutting edge material, is made up of following component in quality %: C:1.6 ~ 1.9%; Mn:0.8 ~ 1.5%; Si:0.15 ~ 0.25%; Cr:4.5 ~ 7.5%; W:3 ~ 5%; Mo:1.3 ~ 2%; Ti:4 ~ 7%; V:1%; Nb:1.5 ~ 2.5%; Fe: surplus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210470685.7A CN102925813B (en) | 2012-11-20 | 2012-11-20 | Wear-resisting and anti-cracking composite cutter ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210470685.7A CN102925813B (en) | 2012-11-20 | 2012-11-20 | Wear-resisting and anti-cracking composite cutter ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102925813A CN102925813A (en) | 2013-02-13 |
| CN102925813B true CN102925813B (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210470685.7A Expired - Fee Related CN102925813B (en) | 2012-11-20 | 2012-11-20 | Wear-resisting and anti-cracking composite cutter ring |
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| Country | Link |
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| CN (1) | CN102925813B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103509990A (en) * | 2013-10-17 | 2014-01-15 | 太仓康茂电子有限公司 | Manufacturing method for wear-resistant alloy material |
| CN103967500B (en) * | 2014-05-04 | 2017-11-03 | 铜川市宏泰华宇科技有限公司 | Mining machinery hard alloy pick and cast welding technique |
| CN109957720B (en) * | 2019-02-26 | 2020-09-22 | 唐山志威科技有限公司 | High-hardness and high-toughness ZW552 steel for heading machine cutter ring |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101078090A (en) * | 2007-06-26 | 2007-11-28 | 郑州航空工业管理学院 | Low-alloy high speed steel roll material and preparation method thereof |
| JP2011144432A (en) * | 2010-01-15 | 2011-07-28 | Daido Steel Co Ltd | Cold tool steel having excellent machinability |
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2012
- 2012-11-20 CN CN201210470685.7A patent/CN102925813B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101078090A (en) * | 2007-06-26 | 2007-11-28 | 郑州航空工业管理学院 | Low-alloy high speed steel roll material and preparation method thereof |
| JP2011144432A (en) * | 2010-01-15 | 2011-07-28 | Daido Steel Co Ltd | Cold tool steel having excellent machinability |
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| Publication number | Publication date |
|---|---|
| CN102925813A (en) | 2013-02-13 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 |