CN101591780A - A kind of preparation method of abrasion resistant coating layer of cutter - Google Patents
A kind of preparation method of abrasion resistant coating layer of cutter Download PDFInfo
- Publication number
- CN101591780A CN101591780A CNA2008100620988A CN200810062098A CN101591780A CN 101591780 A CN101591780 A CN 101591780A CN A2008100620988 A CNA2008100620988 A CN A2008100620988A CN 200810062098 A CN200810062098 A CN 200810062098A CN 101591780 A CN101591780 A CN 101591780A
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- Cutting Tools, Boring Holders, And Turrets (AREA)
- Chemical Vapour Deposition (AREA)
Abstract
The invention discloses a kind of preparation method of abrasion resistant coating layer of cutter, it is characterized in that the using plasma expansion is oozed and the deposition compounding technology,, titaniferous nitrogenous by conversion, carbon containing source of the gas form, and formed the multi-gradient compound coating of nitrided case～4.5 μ m, TiN key coat～3.5 μ m, TiC wear-resistant coating～2.5 μ m from inside to outside on the speedy steel cutting-tool surface.The multi-layer composite coatings that makes with preparation method of the present invention strengthens speedy steel cutting-tool, and the bonding state of tool matrix and coating is good, when can keep the cutter center toughness, improves intensity, hardness, wear resistance and the work-ing life of tool surface.
Description
Technical field
The present invention relates to a kind of speedy steel cutting-tool top coat strengthens and preparation method thereof.
Background technology
Development along with machinery manufacturing industry, the research of High Speed Cutting Technique and cutter material thereof is rapidly developed, require the high-speed cutter material to possess outside the basic property of universal cutter material, also special requirement possess high wear resistance, thermotolerance, thermal-shock resistance and high reliability.But because rapid tool steel is in working angles, blade itself bears bending, reverses, shear-stress and impact, vibrational loading, also to be subjected to the strong friction effect of workpiece and smear metal simultaneously, cause cutter wearing and tearing, turned, tipping often to occur or fracture etc. in use, shortened the work-ing life of cutter, reduce production efficiency, increased production cost simultaneously.Adopting the top coat intensifying technology that speedy steel cutting-tool is carried out surface Hardening Treatment, obtain the cutter of good core toughness, surface hardness height, wear-resisting, anti-corrosion, long service life, is one of effective way of speedy steel cutting-tool highly malleablized.In recent years, coating technology fast development both at home and abroad, in the manufacturing of new-type cutter, coated cutting tool is with fastest developing speed, industrially developed country's coated cutting tool has accounted for more than 80% at present, used bite has and has adopted the top coat technology more than 90% on the CNC lathe, and gear cutting tool and slotting cutter, drill bit have employing coating technology over half.
Coated material has carbide, nitride, carbonitride, oxide compound, boride, silicide, diamond and compound coating etc., and wherein commonly used have TiC, TiN, an Al
2O
3, diamond coatings, coat-thickness is 5～10um or more than the 10um.Along with the development of coating technology, single coating is because the softer or coating of matrix is not enough with basal body binding force, causes matrix not support coating effectively and early damage takes place, and application is subjected to severely restricts.By multi-component coating, laminated coating design, utilize the physical gaseous phase deposition coating technology, and combine with other process of surface treatment or coating, form the duplex coating or the laminated coating of a kind of band transition layer (or middle layer), can effectively overcome the shortcoming of single coating, performance and good prospects for application that cutter material is had are subjected to extensive concern.But it is undeniable, though surface hardness height, the wear resistance of the single or multiple lift coating of gas phase deposition technology preparation are good, but tangible interface is arranged between cementation zone and the matrix, bonding force a little less than, cementation zone is different with the thermal expansivity of matrix, cutter is in use because the interface thermal stresses that temperature variation causes may cause coating shedding, and the surface that has influence on coating strengthens the improper inefficacy that causes speedy steel cutting-tool.
About described cutter multi-layer composite coatings, once reported at publication number CN 1514039 that using plasma intensifier pulse laser deposition or the auxiliary radio-frequency plasma CVD method of heated filament prepared cutting tool boron nitride compound coating, this coating comprises one and hard alloy substrate bonded basal layer (TiC
xO
yN
z), the boron nitride layer of a middle close binder (nickel (Ni) layer) and an outermost.
Publication number CN 1280632 once reported a kind of on cutter plasma activated chemical vapour deposition (PACVD) method of depositing fine-grained alumina coatings, two bipolar pulse volts DSs on the electrode produce this method by being added at plasma body, and base material to be coated are being fixed on the electrode and are being electrical connection.Therefore compare with existing method, this method has suppressed the accumulation of electric charge on the Surface Insulation, does not produce electric arc on described surface, thereby makes reacting balance, carry out for a long time.
Summary of the invention:
The invention provides a kind of speedy steel cutting-tool surface and form the high and variation continuously of hardness, coating and do not have the interface, combine multi-gradient compound coating that tight, wear resisting property and load-carrying properties significantly improve and preparation method thereof with body material.
The present invention is for reaching above purpose, be to realize by such technical scheme: the structure of multi-gradient compound coating of the present invention from inside outwards is made up of nitrided case, key coat, wearing layer respectively, wherein, nitrided case is the gap Solid solution coating of nitrogen in α-Fe, γ-Fe, key coat is the TiN coating that gas chemistry generates, and wear-resistant coating is the TiC coating that gas chemistry generates.The advantage of this coating structure is: a, ion Plasma Nitriding Treatment have been removed the oxide compound of matrix surface, cause the bonding force between nitrided case and the matrix to improve, and the formation of Fe, N, Cr, Ti internal diffusion layer causes the metallurgical interface combination, and bonding force is had active effect.B, because the effect of nitrided case, the expansion of TiN, TiC crackle only just can be carried out on basal body interface, has prolonged the crackle mobile route, and has increased the bonding force of TiC, TiN and matrix greatly, has increased Effective case depth.C, TiN, both lattice parameters of TiC are more or less the same, it is the isomorphism mutual solubility, thereby guarantee TiC coating and TiN transition layer combine and with the combining of matrix, cementation coating, and TiC has very high surface hardness value, thereby makes multi-layer composite coatings have very high high-speed abrasion-proof performance and supporting capacity.
The present invention also provides a kind of preparation method of cutter multi-gradient compound coating, it is characterized in that: realize at same equipment that plasma body expands and ooze and deposit compounding technology and combine, utilize conversion source of the gas (comprising penetration enhancer) to form and proportioning, preparation MULTILAYER COMPOSITE gradient cladding.This preparation method's advantage is: adopt in tool surface vapour deposition high hardness spray coating, by in stove, adding high voltage electric between cathode and anode, gas glow discharge forms required plasma body, have than the plasma bombardment negative electrode (cutter) of macro-energy surface and infiltrate workpiece, cause that atom between surface strengthen layer and body material interpenetrates, moltenly is one, form high rigidity, wear-resistant gradient functional coating, improve coating and high base strength, reduce in the use because the thermal stresses that temperature variation causes makes product obtain superior performance.Plasma body expands to ooze with the vapour deposition compounding technology to be compared with simple gas phase deposition technology, and top coat hardness is close and bonding force coating and body material is much better than; This project technology expands to ooze with simple plasma body to be compared, and coating hardness improves many.
The present invention also provides the source of the gas of multi-gradient compound coating to form, and it is characterized in that: select TiCl
4Gas is the Ti source, NH
3, N
2Gas is the nitrogenous source of TiN and the nitriding medium of rapid steel, CH
4, C
2H
2Gas is the TiC carbon source, Ar
2Gas is protective gas.
The multi-gradient compound coating of the present invention's preparation, the bonding state of coating is better, and coating has formed the gradient bed thickness of nitrided case～4.5 μ m, TiN layer～3.5 μ m, TiC～2.5 μ m from inside to outside.Effective case depth 10～12 μ m of cutter, centre hardness is greater than 65HRC, and surface hardness is greater than 1850HV, and wear resistance is greater than more than 3 times of common rapid steel.
Embodiment:
Embodiment 1:
TiCl
4Gas is the Ti source, NH
3Gas is the nitrogenous source of TiN and the nitriding medium of rapid steel, CH
4Gas is the TiC carbon source, Ar
2Gas is protective gas.
The using plasma expansion is oozed and the deposition compounding technology, form by the conversion source of the gas, formed the multi-gradient compound coating of nitrided case～4.5 μ m, TiN key coat～3.5 μ m, TiC wear-resistant coating～2.5 μ m from inside to outside on the speedy steel cutting-tool surface, the effective case depth 10 μ m of cutter, centre hardness is greater than 60HRC, surface hardness is greater than 1800HV, and wear resistance is greater than more than 2.5 times of common rapid steel.
Embodiment 2:
TiCl
4Gas is the Ti source, N
2Gas is the nitrogenous source of TiN and the nitriding medium of rapid steel, C
2H
2Gas is the TiC carbon source, Ar
2Gas is protective gas.
The using plasma expansion is oozed and the deposition compounding technology, form by the conversion source of the gas, formed the multi-gradient compound coating of nitrided case～4.5 μ m, TiN key coat～3.5 μ m, TiC wear-resistant coating～2.5 μ m from inside to outside on the speedy steel cutting-tool surface, the effective case depth 12 μ m of cutter, centre hardness is greater than 65HRC, surface hardness is greater than 1850HV, and wear resistance is greater than more than 3 times of common rapid steel.
At last, it is also to be noted that what more than enumerate only is of the present invention if a specific embodiment.Obviously, the invention is not restricted to above embodiment, many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (3)
1, a kind of preparation method of abrasion resistant coating layer of cutter is characterized in that: realize at same equipment that plasma body expands to ooze with the deposition compounding technology and combine, utilize conversion source of the gas (comprising penetration enhancer) to form and proportioning, prepare the MULTILAYER COMPOSITE gradient cladding.
2, a kind of abrasion resistant coating layer of cutter preparation method as claimed in claim 1, it is characterized in that: the structure of coating is the MULTILAYER COMPOSITE gradient cladding, from inside outwards form by nitrided case, key coat, wearing layer respectively, wherein, nitrided case is the gap Solid solution coating of nitrogen in α-Fe, γ-Fe, key coat is the TiN coating that gas chemistry generates, and wear-resistant coating is the TiC coating that gas chemistry generates.
3, a kind of as claim 1 and 2 described abrasion resistant coating layer of cutter preparation methods, its feature of raw material is: select TiCl
4Gas is the Ti source, NH
3, N
2Gas is the nitrogenous source of TiN and the nitriding medium of rapid steel, CH
4, C
2H
2Gas is the TiC carbon source, Ar
2Gas is protective gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100620988A CN101591780A (en) | 2008-05-29 | 2008-05-29 | A kind of preparation method of abrasion resistant coating layer of cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100620988A CN101591780A (en) | 2008-05-29 | 2008-05-29 | A kind of preparation method of abrasion resistant coating layer of cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101591780A true CN101591780A (en) | 2009-12-02 |
Family
ID=41406654
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100620988A Pending CN101591780A (en) | 2008-05-29 | 2008-05-29 | A kind of preparation method of abrasion resistant coating layer of cutter |
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|---|---|
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831651A (en) * | 2010-05-25 | 2010-09-15 | 晏双利 | Hard alloy cutter and film plating method of same |
| CN101967623A (en) * | 2010-11-03 | 2011-02-09 | 成都工具研究所有限公司 | Hard alloy cutter with two structural coatings |
| CN102061454A (en) * | 2011-01-20 | 2011-05-18 | 厦门金鹭特种合金有限公司 | Method for preparing coating on cutter |
| CN106223425A (en) * | 2016-07-25 | 2016-12-14 | 柳州合科技有限公司 | A kind of new and effective garbage treatment device |
| CN106593458A (en) * | 2017-01-12 | 2017-04-26 | 河北工程大学 | Cutting tool of shield tunneling machine for metro construction |
| CN108766686A (en) * | 2018-06-05 | 2018-11-06 | 瑞安复合材料(深圳)有限公司 | A kind of low sheet resistance flexible insulating material and preparation method thereof |
| CN110055490A (en) * | 2019-05-05 | 2019-07-26 | 兰州理工大学温州泵阀工程研究院 | A kind of compounding method on austenitic stainless steel surface layer |
| CN110735126A (en) * | 2019-10-24 | 2020-01-31 | 江苏亿阀股份有限公司 | method for preparing tungsten carbide transition layer-silicon doped diamond composite coating on steel substrate |
| CN111139426A (en) * | 2020-02-20 | 2020-05-12 | 辽宁科技大学 | Ultrahigh-strength cold-rolled steel plate cutting tool coating layer and method |
| CN113529008A (en) * | 2021-07-15 | 2021-10-22 | 西北有色金属研究院 | Method for preparing gradient composite wear-resistant coating on surface of titanium or titanium alloy |
| CN115928000A (en) * | 2022-12-09 | 2023-04-07 | 无锡福伊特电子科技有限公司 | Corrosion-resistant and wear-resistant metal sheet metal workpiece material for lithium battery slurry vacuum mixer |
-
2008
- 2008-05-29 CN CNA2008100620988A patent/CN101591780A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831651A (en) * | 2010-05-25 | 2010-09-15 | 晏双利 | Hard alloy cutter and film plating method of same |
| CN101831651B (en) * | 2010-05-25 | 2012-01-04 | 晏双利 | Hard alloy cutter and film plating method of same |
| CN101967623A (en) * | 2010-11-03 | 2011-02-09 | 成都工具研究所有限公司 | Hard alloy cutter with two structural coatings |
| CN101967623B (en) * | 2010-11-03 | 2012-08-29 | 成都工具研究所有限公司 | Hard alloy cutter with two structural coatings |
| CN102061454A (en) * | 2011-01-20 | 2011-05-18 | 厦门金鹭特种合金有限公司 | Method for preparing coating on cutter |
| CN106223425A (en) * | 2016-07-25 | 2016-12-14 | 柳州合科技有限公司 | A kind of new and effective garbage treatment device |
| CN106593458A (en) * | 2017-01-12 | 2017-04-26 | 河北工程大学 | Cutting tool of shield tunneling machine for metro construction |
| CN108766686A (en) * | 2018-06-05 | 2018-11-06 | 瑞安复合材料(深圳)有限公司 | A kind of low sheet resistance flexible insulating material and preparation method thereof |
| CN108766686B (en) * | 2018-06-05 | 2020-09-15 | 瑞安复合材料(深圳)有限公司 | Low-surface-resistance flexible insulating material and preparation method thereof |
| CN110055490A (en) * | 2019-05-05 | 2019-07-26 | 兰州理工大学温州泵阀工程研究院 | A kind of compounding method on austenitic stainless steel surface layer |
| CN110735126A (en) * | 2019-10-24 | 2020-01-31 | 江苏亿阀股份有限公司 | method for preparing tungsten carbide transition layer-silicon doped diamond composite coating on steel substrate |
| CN111139426A (en) * | 2020-02-20 | 2020-05-12 | 辽宁科技大学 | Ultrahigh-strength cold-rolled steel plate cutting tool coating layer and method |
| CN113529008A (en) * | 2021-07-15 | 2021-10-22 | 西北有色金属研究院 | Method for preparing gradient composite wear-resistant coating on surface of titanium or titanium alloy |
| CN115928000A (en) * | 2022-12-09 | 2023-04-07 | 无锡福伊特电子科技有限公司 | Corrosion-resistant and wear-resistant metal sheet metal workpiece material for lithium battery slurry vacuum mixer |
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Open date: 20091202 |