CN1776026A - Hard composite nano ceramic film cladding for use on surface of engine valve tappet - Google Patents
Hard composite nano ceramic film cladding for use on surface of engine valve tappet Download PDFInfo
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- CN1776026A CN1776026A CN 200510095797 CN200510095797A CN1776026A CN 1776026 A CN1776026 A CN 1776026A CN 200510095797 CN200510095797 CN 200510095797 CN 200510095797 A CN200510095797 A CN 200510095797A CN 1776026 A CN1776026 A CN 1776026A
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Abstract
This invention relates to hard compound nano ceramic film coating on engine valve tappet, which can be made by depositing solid film. Said technology contains vacuum evaporation, magnetic control spattering, ion plating, liquid phase epitaxy, chemical beam epitaxy, molecular beam epitaxy, impulse laser deposition, electrochemical deposition, CVD and PVD. Said method contains depositing a coating composed of more than one hard compound nano ceramic film on surface of cutting, sawing and drilling tool, said coating produces surface modification and with HV>=3350 of Vickers hardness and thickness<=60 micrometer, said coating can be used in gasoline and diesel engine valve tappet.
Description
Technical field
The present invention relates to the coating of the hard composite nano ceramic film that a kind of surface of engine tappet rod for valve uses.
Background technology
The engine tappet rod for valve comprises petrol motor engine tappet rod for valve, diesel engine tappet rod for valve, natural gas engine engine tappet rod for valve, ethanol engine engine tappet rod for valve, mixed fuel engine engine tappet rod for valve etc., these engine tappet rod for valves all are to be operated in the complicated rugged environment, so the engine tappet rod for valve is faced with such as hot strength, resistance to high temperature oxidation, anticorrosive, antiscour, shock resistance, anti-aging, antifatigue, the wear-resistant problem that undermines the work-ing life that prolongs the engine tappet rod for valve; The processing technology of the deposit solid film of comparative maturity comprises vacuum-evaporation, magnetron sputtering, ion beam sputtering, ion plating, rheotaxy, chemical beam epitaxy, divides in beam epitaxy, pulsed laser deposition, electrochemical deposition, chemical vapour deposition and physical vapor deposition now; And in the processing technique field of present deposit solid film, often only use single thin-film material, and single thin-film material has more limitation, effect is also limited; So, for the surface of improving the engine tappet rod for valve has good hot strength, resistance to high temperature oxidation, anticorrosive, antiscour, shock resistance, anti-aging, antifatigue, the wear-resistant purpose that undermines the performance in the work-ing life that prolongs the engine tappet rod for valve, so need the coating of the hard composite nano ceramic film that a kind of surface of engine tappet rod for valve uses.
Summary of the invention:
The object of the present invention is to provide the coating of the hard composite nano ceramic film that a kind of surface of engine tappet rod for valve uses.
Technical scheme of the present invention: the present invention is the coating of the hard composite nano ceramic film that uses of a kind of surface of engine tappet rod for valve, the coating of the hard composite nano ceramic film that use on the surface of this engine tappet rod for valve can utilize the processing technology of general deposit solid film to be realized that the processing technology of this deposit solid film comprises vacuum-evaporation, magnetron sputtering, ion beam sputtering, ion plating, rheotaxy, chemical beam epitaxy, molecular beam epitaxy, pulsed laser deposition, electrochemical deposition, chemical vapour deposition and physical vapor deposition; The basic skills of the coating of the hard composite nano ceramic film that use on the surface of this engine tappet rod for valve is to use the technology of deposit solid film, a kind of and more than one the coating of hard composite nano ceramic film at the surface deposition of engine tappet rod for valve; The coating of this hard composite nano ceramic film is used so that the surface modification of the surperficial generating material of engine tappet rod for valve.
The base target material on the surface of above-mentioned engine tappet rod for valve can be a rapid steel; Or the base target material on the surface of above-mentioned engine tappet rod for valve can be a highquality carbon steel; Or the base target material on the surface of above-mentioned engine tappet rod for valve can be pure titanium; Or the base target material on the surface of above-mentioned engine tappet rod for valve can be a superalloy; Or the base target material on the surface of above-mentioned engine tappet rod for valve can be a non-ferrous alloy; Or the base target material on the surface of above-mentioned engine tappet rod for valve can be a stainless steel; Or the base target material on the surface of above-mentioned engine tappet rod for valve can be a special alloy.
The outside coating material of the coating of the film of the hard composite nano ceramic that use on the surface of above-mentioned engine tappet rod for valve comprises titanium oxide (TiO
2), aluminum oxide (Al
2O
3), zirconium white (ZrO
2), zirconium nitride (ZrN), patina tungsten (WAg), silicon oxide (SiO
2), norbide (B
4C), boron nitride (BN), silicon nitride (Si
3N
4), aluminium nitride (AlN), cobalt oxide (CoO), magnesium oxide (MgO), chromic oxide (Cr
2O
3); The outside coating material of the coating of the film of the hard composite nano ceramic that use on the surface of this engine tappet rod for valve has good hot strength, the coating material of the coating of the film of this hard composite nano ceramic also has good resistance to high temperature oxidation, anticorrosive, antiscour, shock resistance, anti-aging, antifatigue, the wear-resistant performance that undermines the work-ing life that prolongs the engine tappet rod for valve, and the outside coating material of the coating of the film of this hard composite nano ceramic also has the performance of good self-lubricating; The outside coating material of the coating of the film of this hard composite nano ceramic can be selected a kind of use wherein separately; Or the outside coating material of the coating of the film of this hard composite nano ceramic can select several combinations back wherein to use, and reaches the purpose of reinforcement " nano effect ".
The fundamental property of the outside coating material of the coating of the film of the hard composite nano ceramic that use on the surface of above-mentioned engine tappet rod for valve when a kind of use of selecting separately wherein is: fusing point is between 1600 ℃ to 2850 ℃, hardness is between the 10Gpa to 52Gpa, and density is 2.2g/cm
-3To 5.8g/cm
-3Between, Young's modulus is between the 150Gpa to 670Gpa, coefficient of linear expansion is 0.000002K
-1To 0.0000095K
-1Between, thermal conductivity is 1.2W (mK)
-1To 85W (mK)
-1Between; Fundamental property when the outside coating material of the coating of the film of the hard composite nano ceramic that use on the surface of above-mentioned engine tappet rod for valve uses after several combinations of selecting wherein can improve 1% to 20%.
The inter-metallic compound material of the coating of the film of the hard composite nano ceramic that use on the surface of above-mentioned engine tappet rod for valve comprises titanium nitride (TiN), titanium carbide (TiC), hafnium nitride (HfN), titanium aluminide (TiAl), hafnium carbide (HfC), tantalum carbide (TaC), wolfram varbide (WC), TiAlN (TiAlN), TiCN (TiCN), zirconium aluminium titanium (TiAlZr), niobium aluminium titanium (TiAlNb), nickel zirconium titanium (TiZrNi), nickel aluminide (NiAl), titanium boride (TiB
2); The inter-metallic compound material of the coating of the hard composite nano ceramic that use on the surface of this engine tappet rod for valve is the diffusion transition layer between hard composite nano ceramic film and the base target material, make the inter-metallic compound material of the coating of this hard composite nano ceramic have the hard composite nano ceramic film of assurance and good adhesion property can be arranged for the base target material, also make the inter-metallic compound material of the coating of this hard composite nano ceramic have the effect of the unrelieved stress of eliminating hard composite nano ceramic film, the inter-metallic compound material of the coating of this hard composite nano ceramic is had improve the anti-aging of hard composite nano ceramic film, the function of antifatigue and anti-impact force; The inter-metallic compound material of the coating of the film of this hard composite nano ceramic can be selected a kind of use wherein separately; Or the inter-metallic compound material of the coating of the film of this hard composite nano ceramic can select several combinations back wherein to use, and reaches the purpose of reinforcement " nano effect ".
The fundamental property of the inter-metallic compound material of the coating of the film of the hard composite nano ceramic that use on the surface of above-mentioned engine tappet rod for valve when a kind of use of selecting separately wherein is: fusing point is between 2750 ℃ to 4050 ℃, hardness is between the 15Gpa to 31Gpa, and density is 4.42g/cm
-3To 15.9g/cm
-3Between, Young's modulus is between the 450Gpa to 730Gpa, coefficient of linear expansion is 0.0000039K
-1To 0.00000955K
-1Between, thermal conductivity is 12W (mK)
-1To 35W (mK)
-1Between; Fundamental property when the inter-metallic compound material of the coating of the film of the hard composite nano ceramic that use on the surface of above-mentioned engine tappet rod for valve uses after several combinations of selecting wherein can improve 1% to 20%.
The basic technology method of the coating of the hard composite nano ceramic film that use on the surface of engine tappet rod for valve is as follows; A, the surface of engine tappet rod for valve is cleaned with volatile organic solvent and by ultrasonic wave, to remove various dirts; B, can select to utilize a kind of technology of finishing whole coating wherein in the processing technology of above-mentioned general substantially deposit solid film; C, at first with the inter-metallic compound material of the coating of the film of the hard composite nano ceramic of selected material kind and prescription, form the film of the inter-metallic compound material of several layers nanostructure on the base target material on the surface of engine tappet rod for valve, be 5 nanometer to 100 nanometers the modified and modulation period of the film of each layer inter-metallic compound material, thickness with the film of controlling each layer inter-metallic compound material, reach the purpose of reinforcement " nano effect ", the integral thickness of the film of this inter-metallic compound material is no more than 30 microns; D, afterwards with the outside coating material of the coating of the film of the hard composite nano ceramic of selected material kind and prescription, on the film of the inter-metallic compound material on the surface of above-mentioned engine tappet rod for valve, form the film of the outside coating material of several layers nanostructure, be 5 nanometer to 100 nanometers the modified and modulation period of the film of the outside coating material of each layer, thickness with the film of controlling the outside coating material of each layer, reach the purpose of reinforcement " nano effect ", the integral thickness of the film of this outside coating material is no more than 30 microns; E, after through the unrelieved stress of naturally cooling with the coating of eliminating this hard composite nano ceramic, promptly finish the basic technology method of the coating of the hard composite nano ceramic film that the surface of this engine tappet rod for valve uses.
The overall vickers hardness hv of the coating of the hard composite nano ceramic film that use on the surface of this engine tappet rod for valve is not less than 3350.
The integral thickness of the coating of the hard composite nano ceramic film that use on the surface of this engine tappet rod for valve is no more than 60 microns.
Above-mentioned engine tappet rod for valve comprises petrol motor engine tappet rod for valve, diesel engine tappet rod for valve, natural gas engine engine tappet rod for valve, ethanol engine engine tappet rod for valve, mixed fuel engine engine tappet rod for valve.
The present invention has positive result of use: because the coating of the hard composite nano ceramic film that use on the surface of this engine tappet rod for valve can utilize the processing technology of general deposit solid film to be realized that the processing technology of this deposit solid film comprises vacuum-evaporation, magnetron sputtering, ion beam sputtering, ion plating, rheotaxy, chemical beam epitaxy, molecular beam epitaxy, pulsed laser deposition, electrochemical deposition, chemical vapour deposition and physical vapor deposition; The basic skills of the coating of the hard composite nano ceramic film that use on the surface of this engine tappet rod for valve is to use the technology of deposit solid film, a kind of and more than one the coating of hard composite nano ceramic film at the surface deposition of engine tappet rod for valve; The coating of this hard composite nano ceramic film is used so that the surface modification of the surperficial generating material of engine tappet rod for valve; The base target material on the surface of above-mentioned engine tappet rod for valve can be a rapid steel; Or the base target material on the surface of above-mentioned engine tappet rod for valve can be a highquality carbon steel; The outside coating material of the coating of the film of the hard composite nano ceramic that use on the surface of above-mentioned engine tappet rod for valve comprises titanium oxide (TiO
2), zirconium white (ZrO
2), zirconium nitride (ZrN), patina tungsten (WAg), norbide (B
4C), boron nitride (BN), aluminium nitride (AlN), cobalt oxide (CoO), chromic oxide (Cr
2O
3); The outside coating material of the coating of the film of the hard composite nano ceramic that use on the surface of this engine tappet rod for valve has good hot strength, the coating material of the coating of the film of this hard composite nano ceramic also has good resistance to high temperature oxidation, anticorrosive, antiscour, shock resistance, anti-aging, antifatigue, the wear-resistant performance that undermines the work-ing life that prolongs the engine tappet rod for valve, and the outside coating material of the coating of the film of this hard composite nano ceramic also has the performance of good self-lubricating; The outside coating material of the coating of the film of this hard composite nano ceramic can be selected a kind of use wherein separately; Or the outside coating material of the coating of the film of this hard composite nano ceramic can select several combinations back wherein to use, and reaches the purpose of reinforcement " nano effect "; The fundamental property of the outside coating material of the coating of the film of the hard composite nano ceramic that use on the surface of above-mentioned engine tappet rod for valve when a kind of use of selecting separately wherein is: fusing point is between 1600 ℃ to 2850 ℃, hardness is between the 10Gpa to 52Gpa, and density is 2.2g/cm
-3To 5.8g/cm
-3Between, Young's modulus is between the 150Gpa to 670Gpa, coefficient of linear expansion is 0.000002K
-1To 0.0000095K
-1Between, thermal conductivity is 1.2W (mK)
-1To 85W (mK)
-1Between; Fundamental property when the outside coating material of the coating of the film of the hard composite nano ceramic that use on the surface of above-mentioned engine tappet rod for valve uses after several combinations of selecting wherein can improve 1% to 20%; The inter-metallic compound material of the coating of the film of the hard composite nano ceramic that use on the surface of above-mentioned engine tappet rod for valve comprises titanium nitride (TiN), titanium carbide (TiC), hafnium nitride (HfN), hafnium carbide (HfC), tantalum carbide (TaC), TiAlN (TiAlN), TiCN (TiCN), niobium aluminium titanium (TiAlNb), nickel aluminide (NiAl); The inter-metallic compound material of the coating of the hard composite nano ceramic that use on the surface of this engine tappet rod for valve is the diffusion transition layer between hard composite nano ceramic film and the base target material, make the inter-metallic compound material of the coating of this hard composite nano ceramic have the hard composite nano ceramic film of assurance and good adhesion property can be arranged for the base target material, also make the inter-metallic compound material of the coating of this hard composite nano ceramic have the effect of the unrelieved stress of eliminating hard composite nano ceramic film, the inter-metallic compound material of the coating of this hard composite nano ceramic is had improve the anti-aging of hard composite nano ceramic film, the function of antifatigue and anti-impact force; The inter-metallic compound material of the coating of the film of this hard composite nano ceramic can be selected a kind of use wherein separately; Or the inter-metallic compound material of the coating of the film of this hard composite nano ceramic can select several combinations back wherein to use, and reaches the purpose of reinforcement " nano effect "; The fundamental property of the inter-metallic compound material of the coating of the film of the hard composite nano ceramic that use on the surface of above-mentioned engine tappet rod for valve when a kind of use of selecting separately wherein is: fusing point is between 2750 ℃ to 4050 ℃, hardness is between the 15Gpa to 31Gpa, and density is 4.42g/cm
-3To 15.9g/cm
-3Between, Young's modulus is between the 450Gpa to 730Gpa, coefficient of linear expansion is 0.0000039K
-1To 0.00000955K
-1Between, thermal conductivity is 12W (mK)
-1To 35W (mK)
-1Between; Fundamental property when the inter-metallic compound material of the coating of the film of the hard composite nano ceramic that use on the surface of above-mentioned engine tappet rod for valve uses after several combinations of selecting wherein can improve 1% to 20%; The overall vickers hardness hv of the coating of the hard composite nano ceramic film that use on the surface of this engine tappet rod for valve is not less than 3350; The integral thickness of the coating of the hard composite nano ceramic film that use on the surface of this engine tappet rod for valve is no more than 60 microns; Above-mentioned engine tappet rod for valve comprises petrol motor engine tappet rod for valve, diesel engine tappet rod for valve, natural gas engine engine tappet rod for valve, ethanol engine engine tappet rod for valve, mixed fuel engine engine tappet rod for valve; So can reach the surface of engine tappet rod for valve has used after the coating of hard composite nano ceramic film, the coating of this hard composite nano ceramic film can make the surface modification of the surperficial generating material of engine tappet rod for valve, thereby the surface of having improved the engine tappet rod for valve has good hot strength, resistance to high temperature oxidation, anticorrosive, antiscour, shock resistance, anti-aging, antifatigue, the wear-resistant purpose that undermines the performance in the work-ing life that prolongs the engine tappet rod for valve.The present invention is the coating of the hard composite nano ceramic film that uses of the surface of safe and reliable, stable performance, a kind of widely engine tappet rod for valve of use.
Embodiment
Embodiment
The coating of the hard composite nano ceramic film that use on the surface of a kind of engine valve lifter of the present embodiment of the present invention meets Its Relevant Technology Standards; The process of the present embodiment of the present invention is as follows: the coating of the hard composite nano ceramic film that use on the surface of this engine valve lifter can utilize the process technology of general deposit solid film to be realized, the process technology of this deposit solid film comprises vacuum evaporation, magnetron sputtering, ion beam sputtering, ion plating, liquid phase epitaxy, chemical beam epitaxy, molecular beam epitaxy, pulsed laser deposition, electrochemical deposition, chemical vapour deposition (CVD) and physical vapour deposition (PVD); The basic skills of the coating of the hard composite nano ceramic film that use on the surface of this engine valve lifter is to use the technology of deposit solid film, a kind of and more than one the coating of hard composite nano ceramic film at the surface deposition of engine valve lifter, in the present embodiment, can be chosen in more than one the coating of hard composite nano ceramic film of surface deposition of engine valve lifter; The coating of this hard composite nano ceramic film is used so that the surface modification of the surperficial generating material of engine valve lifter; In the present embodiment, can select the base target material on the surface of above-mentioned engine valve lifter can be Fine Steel Casting iron; In other embodiments, maybe can select the base target material on the surface of above-mentioned engine valve lifter can be high-speed steel; The base target material that maybe can select the surface of above-mentioned engine valve lifter can be pure titanium; The base target material that maybe can select the surface of above-mentioned engine valve lifter can be high temperature alloy; The base target material that maybe can select the surface of above-mentioned engine valve lifter can be non-ferrous alloy; The base target material that maybe can select the surface of above-mentioned engine valve lifter can be stainless steel; The base target material that maybe can select the surface of above-mentioned engine valve lifter can be special alloy; The outside coating material of the coating of the film of the hard composite nano-ceramic that use on the surface of above-mentioned engine valve lifter comprises titanium oxide (TiO2), aluminium oxide (Al2O
3), zirconia (ZrO2), zirconium nitride (ZrN), patina tungsten (WAg), silica (SiO2), boron carbide (B4C), boron nitride (BN), silicon nitride (Si3N
4), aluminium nitride (AlN), cobalt oxide (CoO), magnesia (MgO), chromium oxide (Cr2O
3); The outside coating material of the coating of the film of the hard composite nano-ceramic that use on the surface of this engine valve lifter has good elevated temperature strength, the coating material of the coating of the film of this hard composite nano-ceramic also has good resistance to high temperature oxidation, anticorrosive, antiscour, shock resistance, anti-aging, antifatigue, the wear-resistant performance that undermines the service life that extends the engine valve lifter, and the outside coating material of the coating of the film of this hard composite nano-ceramic also has the performance of good self-lubricating; In the present embodiment, can select the outside coating material of coating of the film of this hard composite nano-ceramic can select to use after wherein several combinations, selected outside coating material is titanium oxide (TiO2), zirconia (ZrO2) and chromium oxide (Cr2O
3), the formula of the outside coating material that this is selected is 45% (TiO2), 35% zirconia (ZrO2) and 20% chromium oxide (Cr2O
3), reach the purpose of reinforcement " nanometer effect "; In other embodiments, maybe can select the outside coating material of coating of the film of this hard composite nano-ceramic can select separately wherein a kind of use; The key property of the outside coating material of the coating of the film of the hard composite nano-ceramic that use on the surface of above-mentioned engine valve lifter when a kind of use of selecting separately wherein is: fusing point is between 1600 ℃ to 2850 ℃, hardness is between 10Gpa to 52Gpa, and density is 2.2g/cm-3To 5.8g/cm-3Between, Young's modulus is between 150Gpa to 670Gpa, linear expansion coefficient is 0.000002K-1To 0.0000095K-1Between, thermal conductivity is 1.2W (mK)-1To 85W (mK)-1Between; The key property of the outside coating material of the coating of the film of the hard composite nano-ceramic that use on the surface of above-mentioned engine valve lifter when selection several combinations are wherein used afterwards can improve 1% to 20%, in the present embodiment, and 45% (TiO2), 35% zirconia (ZrO2) and 20% chromium oxide (Cr2O
3) the key property of three kinds of combinations while using afterwards can improve 5% left and right; The inter-metallic compound material of the coating of the film of the hard composite nano-ceramic that use on the surface of above-mentioned engine valve lifter comprises titanium nitride (TiN), titanium carbide (TiC), hafnium nitride (HfN), calorize titanium (TiAl), hafnium carbide (HfC), ramet (TaC), tungsten carbide (WC), TiAlN (TiAlN), TiCN (TiCN), zirconium aluminium titanium (TiAlZr), niobium aluminium titanium (TiAlNb), nickel zirconium titanium (TiZrNi), calorize nickel (NiAl), titanium boride (TiB2), the inter-metallic compound material of the coating of the hard composite nano-ceramic that use on the surface of this engine valve lifter is the diffusion transition layer between hard composite nano ceramic film and base target material, make the inter-metallic compound material of the coating of this hard composite nano-ceramic have the hard of assurance composite nano ceramic film, for the base target material, good adhesion property can be arranged, also make the inter-metallic compound material of the coating of this hard composite nano-ceramic have the effect of the residual stress of eliminating the hard composite nano ceramic film, also make this hard composite nano-ceramic coating inter-metallic compound material its be improved the anti-aging of hard composite nano ceramic film, the function of antifatigue and anti-impact force, in the present embodiment, can select the inter-metallic compound material of coating of the film of this hard composite nano-ceramic can select to use after wherein several combinations, selected inter-metallic compound material is titanium nitride (TiN), calorize nickel (NiAl) and hafnium nitride (HfN), the formula of inter-metallic compound material that should be selected is 35% titanium nitride (TiN), 35% calorize nickel (NiAl) and 30% hafnium nitride (HfN), reaches the purpose of reinforcement " nanometer effect ", in other embodiments, maybe can select the inter-metallic compound material of coating of the film of this hard composite nano-ceramic can select separately wherein a kind of use, the key property of the inter-metallic compound material of the coating of the film of the hard composite nano-ceramic that use on the surface of above-mentioned engine valve lifter when a kind of use of selecting separately wherein is: fusing point is between 2750 ℃ to 4050 ℃, hardness is between 15Gpa to 31Gpa, and density is 4.42g/cm-3To 15.9g/cm-3Between, Young's modulus is between 450Gpa to 730Gpa, linear expansion coefficient is 0.0000039K-1To 0.00000955K-1Between, thermal conductivity is 12W (mK)-1To 35W (mK)-1between, the key property of the inter-metallic compound material of the coating of the film of the hard composite nano-ceramic that use on the surface of above-mentioned engine valve lifter when selection several combinations are wherein used afterwards can improve 1% to 20%, key property when in the present embodiment, three kinds of combinations of 35% titanium nitride (TiN), 35% calorize nickel (NiAl) and 30% hafnium nitride (HfN) are used afterwards can improve 3.5% left and right, the basic technology method of the coating of the hard composite nano ceramic film that use on the surface of engine valve lifter is as follows, A, the surface of engine valve lifter is cleaned with volatile organic solvent and by ultrasonic wave, to remove various dirts, B, can select to utilize a kind of technique of completing whole coating wherein in the process technology of above-mentioned substantially general deposit solid film, in the present embodiment, the process technology that can select is pulsed laser deposition, C, at first will select the inter-metallic compound material of coating of film of the hard composite nano-ceramic of material category and formula, form the film of the inter-metallic compound material of some layers of nanostructured on the base target material on the surface of engine valve lifter, be 5 nanometer to 100 nanometers the modified and modulation period of the film of every one deck inter-metallic compound material, thickness with the film of controlling every one deck inter-metallic compound material, reach the purpose of reinforcement " nanometer effect ", the whole thickness of the film of this inter-metallic compound material is no more than 30 microns, in the present embodiment, can select to form 15 layers of film to the inter-metallic compound material of 18 layers of nanostructured on the base target material on surface of engine valve lifter, be 50 nanometer left and right the modified and modulation period of the film of every one deck inter-metallic compound material, thickness with the film of controlling every one deck inter-metallic compound material, reach the purpose of reinforcement " nanometer effect ", the whole thickness of the film of this inter-metallic compound material is no more than 12.5 microns, D, to select afterwards the outside coating material of coating of film of the hard composite nano-ceramic of material category and formula, form the film of the outside coating material of some layers of nanostructured on the film of the inter-metallic compound material on the surface of above-mentioned engine valve lifter, be 5 nanometer to 100 nanometers the modified and modulation period of the film of the outside coating material of every one deck, thickness with the film of controlling the outside coating material of every one deck, reach the purpose of reinforcement " nanometer effect ", the whole thickness of the film of this outside coating material is no more than 30 microns, in the present embodiment, can select to form 12 layers of film to the outside coating material of 16 layers of nanostructured on the inter-metallic compound material on surface of engine valve lifter, be 55 nanometer left and right the modified and modulation period of the film of the outside coating material of every one deck, thickness with the film of controlling the outside coating material of every one deck, reach the purpose of reinforcement " nanometer effect ", the whole thickness of the film of this outside coating material is no more than 12.8 microns, E, after the cooling residual stress with the coating of eliminating this hard composite nano-ceramic through nature, namely complete the basic technology method of the coating of the hard composite nano ceramic film that the surface of this engine valve lifter uses, the overall vickers hardness hv of the coating of the hard composite nano ceramic film that use on the surface of this engine valve lifter is not less than 3350, and in the present embodiment, the overall vickers hardness hv of the coating of this hard composite nano ceramic film can be controlled at 3400 left and right, the whole thickness of the coating of the hard composite nano ceramic film that use on the surface of this engine valve lifter is no more than 60 microns, in the present embodiment, the whole thickness of the coating of this hard composite nano ceramic film can be controlled at 25 microns left and right, above-mentioned engine valve lifter comprises gasoline engine engine valve lifter, diesel engine valve lifter, natural gas engine engine valve lifter, ethanol engine engine valve lifter, mixed fuel engine engine valve lifter, in the present embodiment, can be chosen as gasoline engine engine valve lifter, so can reach after the surface of engine valve lifter used the coating of hard composite nano ceramic film, the coating of this hard composite nano ceramic film can make the surface modification of the surperficial generating material of engine valve lifter, thereby the surface of having improved the engine valve lifter has good elevated temperature strength, resistance to high temperature oxidation, anticorrosive, antiscour, shock resistance, anti-aging, antifatigue, the wear-resistant purpose that undermines the performance in the service life that extends the engine valve lifter.
The present invention is the coating of the hard composite nano ceramic film that uses of the surface of safe and reliable, stable performance, a kind of widely engine tappet rod for valve of use.
Claims (10)
1, the coating of the hard composite nano ceramic film of a kind of surface of engine tappet rod for valve use, the coating of the hard composite nano ceramic film that use on the surface of this engine tappet rod for valve can utilize the processing technology of general deposit solid film to be realized that the processing technology of this deposit solid film comprises vacuum-evaporation, magnetron sputtering, ion beam sputtering, ion plating, rheotaxy, chemical beam epitaxy, molecular beam epitaxy, pulsed laser deposition, electrochemical deposition, chemical vapour deposition and physical vapor deposition; It is characterized in that: the basic skills of the coating of the hard composite nano ceramic film that use on the surface of this engine tappet rod for valve is to use the technology of deposit solid film, a kind of and more than one the coating of hard composite nano ceramic film at the surface deposition of engine tappet rod for valve; The coating of this hard composite nano ceramic film is used so that the surface modification of the surperficial generating material of engine tappet rod for valve.
2, the coating of the hard composite nano ceramic film of the surface use of the described engine tappet rod for valve of root pick claim 1, it is characterized in that: the base target material on the surface of above-mentioned engine tappet rod for valve can be a rapid steel; Or the base target material on the surface of above-mentioned engine tappet rod for valve can be a highquality carbon steel; Or the base target material on the surface of above-mentioned engine tappet rod for valve can be pure titanium; Or the base target material on the surface of above-mentioned engine tappet rod for valve can be a superalloy; Or the base target material on the surface of above-mentioned engine tappet rod for valve can be a non-ferrous alloy; Or the base target material on the surface of above-mentioned engine tappet rod for valve can be a stainless steel; Or the base target material on the surface of above-mentioned engine tappet rod for valve can be a special alloy.
3, the coating of the hard composite nano ceramic film of the surface of engine tappet rod for valve according to claim 1 use, it is characterized in that: the outside coating material of the coating of the film of the hard composite nano ceramic that use on the surface of above-mentioned engine tappet rod for valve comprises titanium oxide (TiO
2), aluminum oxide (Al
2O
3), zirconium white (ZrO
2), zirconium nitride (ZrN), patina tungsten (WAg), silicon oxide (SiO
2), norbide (B
4C), boron nitride (BN), silicon nitride (Si
3N
4), aluminium nitride (AlN), cobalt oxide (CoO), magnesium oxide (MgO), chromic oxide (Cr
2O
3); The outside coating material of the coating of the film of the hard composite nano ceramic that use on the surface of this engine tappet rod for valve has good hot strength, the coating material of the coating of the film of this hard composite nano ceramic also has good resistance to high temperature oxidation, anticorrosive, antiscour, shock resistance, anti-aging, antifatigue, the wear-resistant performance that undermines the work-ing life that prolongs the engine tappet rod for valve, and the outside coating material of the coating of the film of this hard composite nano ceramic also has the performance of good self-lubricating; The outside coating material of the coating of the film of this hard composite nano ceramic can be selected a kind of use wherein separately; Or the outside coating material of the coating of the film of this hard composite nano ceramic can select several combinations back wherein to use, and reaches the purpose of reinforcement " nano effect ".
4, the coating of the hard composite nano ceramic film of the surface of engine tappet rod for valve according to claim 3 use, it is characterized in that: the fundamental property of the outside coating material of the coating of the film of the hard composite nano ceramic that use on the surface of above-mentioned engine tappet rod for valve when a kind of use of selecting separately wherein is: fusing point is between 1600 ℃ to 2850 ℃, hardness is between the 10Gpa to 52Gpa, and density is 2.2g/cm
-3To 5.8g/cm
-3Between, Young's modulus is between the 150Gpa to 670Gpa, coefficient of linear expansion is 0.000002K
-1To 0.0000095K
-1Between, thermal conductivity is 1.2W (mK)
-1To 85W (mK)
-1Between: the fundamental property when the outside coating material of the coating of the film of the hard composite nano ceramic that use on the surface of above-mentioned engine tappet rod for valve uses after several combinations of selecting wherein can improve 1% to 20%.
5, the coating of the hard composite nano ceramic film that use on the surface of engine tappet rod for valve according to claim 1 is characterized in that: the inter-metallic compound material of the coating of the film of the hard composite nano ceramic that use on the surface of above-mentioned engine tappet rod for valve comprises titanium nitride (TiN), titanium carbide (TiC), hafnium nitride (HfN), titanium aluminide (TiAl), hafnium carbide (HfC), tantalum carbide (TaC), wolfram varbide (WC), TiAlN (TiAlN), TiCN (TiCN), zirconium aluminium titanium (TiAlZr), niobium aluminium titanium (TiAlNb), nickel zirconium titanium (TiZrNi), nickel aluminide (NiAl), titanium boride (TiB
2); The inter-metallic compound material of the coating of the hard composite nano ceramic that use on the surface of this engine tappet rod for valve is the diffusion transition layer between hard composite nano ceramic film and the base target material, make the inter-metallic compound material of the coating of this hard composite nano ceramic have the hard composite nano ceramic film of assurance and good adhesion property can be arranged for the base target material, also make the inter-metallic compound material of the coating of this hard composite nano ceramic have the effect of the unrelieved stress of eliminating hard composite nano ceramic film, the inter-metallic compound material of the coating of this hard composite nano ceramic is had improve the anti-aging of hard composite nano ceramic film, the function of antifatigue and anti-impact force; The inter-metallic compound material of the coating of the film of this hard composite nano ceramic can be selected a kind of use wherein separately; Or the inter-metallic compound material of the coating of the film of this hard composite nano ceramic can select several combinations back wherein to use, and reaches the purpose of reinforcement " nano effect ".
6, the coating of the hard composite nano ceramic film of the surface of engine tappet rod for valve according to claim 5 use, it is characterized in that: the fundamental property of the inter-metallic compound material of the coating of the film of the hard composite nano ceramic that use on the surface of above-mentioned engine tappet rod for valve when a kind of use of selecting separately wherein is: fusing point is between 2750 ℃ to 4050 ℃, hardness is between the 15Gpa to 31Gpa, and density is 4.42g/cm
-3To 15.9g/cm
-3Between, Young's modulus is between the 450Gpa to 730Gpa, coefficient of linear expansion is 0.0000039K
-1To 0.00000955K
-1Between, thermal conductivity is 12W (mK)
-1To 35W (mK)
-1Between; Fundamental property when the inter-metallic compound material of the coating of the film of the hard composite nano ceramic that use on the surface of above-mentioned engine tappet rod for valve uses after several combinations of selecting wherein can improve 1% to 20%.
7, the coating of the hard composite nano ceramic film of the surface of engine tappet rod for valve according to claim 1 use, it is characterized in that: the basic technology method of the coating of the hard composite nano ceramic film that use on the surface of engine tappet rod for valve is as follows; A, the surface of engine tappet rod for valve is cleaned with volatile organic solvent and by ultrasonic wave, to remove various dirts; B, can select to utilize a kind of technology of finishing whole coating wherein in the processing technology of above-mentioned general substantially deposit solid film; C, at first with the inter-metallic compound material of the coating of the film of the hard composite nano ceramic of selected material kind and prescription, form the film of the inter-metallic compound material of several layers nanostructure on the base target material on the surface of engine tappet rod for valve, be 5 nanometer to 100 nanometers the modified and modulation period of the film of each layer inter-metallic compound material, thickness with the film of controlling each layer inter-metallic compound material, reach the purpose of reinforcement " nano effect ", the integral thickness of the film of this inter-metallic compound material is no more than 30 microns; D, afterwards with the outside coating material of the coating of the film of the hard composite nano ceramic of selected material kind and prescription, on the film of the inter-metallic compound material on the surface of above-mentioned engine tappet rod for valve, form the film of the outside coating material of several layers nanostructure, be 5 nanometer to 100 nanometers the modified and modulation period of the film of the outside coating material of each layer, thickness with the film of controlling the outside coating material of each layer, reach the purpose of reinforcement " nano effect ", the integral thickness of the film of this outside coating material is no more than 30 microns; E, after through the unrelieved stress of naturally cooling with the coating of eliminating this hard composite nano ceramic, promptly finish the basic technology method of the coating of the hard composite nano ceramic film that the surface of this engine tappet rod for valve uses.
8, the coating of the hard composite nano ceramic film of the surface of engine tappet rod for valve according to claim 1 use, it is characterized in that: the overall vickers hardness hv of the coating of the hard composite nano ceramic film that use on the surface of this engine tappet rod for valve is not less than 3350.
9, the coating of the hard composite nano ceramic film of the surface of engine tappet rod for valve according to claim 1 use, it is characterized in that: the integral thickness of the coating of the hard composite nano ceramic film that use on the surface of this engine tappet rod for valve is no more than 60 microns.
10, the coating of the hard composite nano ceramic film of the surface of engine tappet rod for valve according to claim 1 use, it is characterized in that: above-mentioned engine tappet rod for valve comprises petrol motor engine tappet rod for valve, diesel engine tappet rod for valve, natural gas engine engine tappet rod for valve, ethanol engine engine tappet rod for valve, mixed fuel engine engine tappet rod for valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510095797 CN1776026A (en) | 2005-11-23 | 2005-11-23 | Hard composite nano ceramic film cladding for use on surface of engine valve tappet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510095797 CN1776026A (en) | 2005-11-23 | 2005-11-23 | Hard composite nano ceramic film cladding for use on surface of engine valve tappet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1776026A true CN1776026A (en) | 2006-05-24 |
Family
ID=36765736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510095797 Withdrawn CN1776026A (en) | 2005-11-23 | 2005-11-23 | Hard composite nano ceramic film cladding for use on surface of engine valve tappet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1776026A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104525916A (en) * | 2014-11-18 | 2015-04-22 | 西安理工大学 | Engine tappet and manufacturing method thereof |
-
2005
- 2005-11-23 CN CN 200510095797 patent/CN1776026A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104525916A (en) * | 2014-11-18 | 2015-04-22 | 西安理工大学 | Engine tappet and manufacturing method thereof |
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