CN105483596A - Inorganic coating and preparing method thereof - Google Patents
Inorganic coating and preparing method thereof Download PDFInfo
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- CN105483596A CN105483596A CN201510781299.3A CN201510781299A CN105483596A CN 105483596 A CN105483596 A CN 105483596A CN 201510781299 A CN201510781299 A CN 201510781299A CN 105483596 A CN105483596 A CN 105483596A
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- 238000000576 coating method Methods 0.000 title claims abstract description 58
- 239000011248 coating agent Substances 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000000843 powder Substances 0.000 claims abstract description 70
- 239000002131 composite material Substances 0.000 claims abstract description 19
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 16
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 15
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- 239000007921 spray Substances 0.000 claims description 33
- 239000000463 material Substances 0.000 claims description 30
- 239000002245 particle Substances 0.000 claims description 24
- 239000008187 granular material Substances 0.000 claims description 18
- 239000010935 stainless steel Substances 0.000 claims description 17
- 229910001220 stainless steel Inorganic materials 0.000 claims description 17
- 238000002360 preparation method Methods 0.000 claims description 16
- 238000007750 plasma spraying Methods 0.000 claims description 15
- 239000007789 gas Substances 0.000 claims description 14
- 238000005516 engineering process Methods 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 239000012159 carrier gas Substances 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 6
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 229910026551 ZrC Inorganic materials 0.000 description 20
- OTCHGXYCWNXDOA-UHFFFAOYSA-N [C].[Zr] Chemical compound [C].[Zr] OTCHGXYCWNXDOA-UHFFFAOYSA-N 0.000 description 14
- 239000002585 base Substances 0.000 description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 10
- 238000005488 sandblasting Methods 0.000 description 10
- 230000003628 erosive effect Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 5
- 238000000498 ball milling Methods 0.000 description 5
- 238000000227 grinding Methods 0.000 description 5
- 239000011733 molybdenum Substances 0.000 description 5
- 238000002203 pretreatment Methods 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 230000003245 working effect Effects 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000003556 assay Methods 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 229910001182 Mo alloy Inorganic materials 0.000 description 1
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- 229910009043 WC-Co Inorganic materials 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- QFXZANXYUCUTQH-UHFFFAOYSA-N ethynol Chemical group OC#C QFXZANXYUCUTQH-UHFFFAOYSA-N 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000010285 flame spraying Methods 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
- C23C4/08—Metallic material containing only metal elements
Abstract
The invention relates to an inorganic coating and a preparing method of the coating. According to the coating, Mo-ZrC-Mn-Ti composite powder is adopted as a raw material and is sprayed to a metal base body, so that the coating is obtained. The proportion of elements including Zr, Mo, Mn and Ti in the coating is 3-1:1-2:1-3:2-5. The inorganic coating has the characteristic of being capable of keeping the high-friction coefficient; and meanwhile, the wear rate of the coating is reduced, and therefore the service life of the coating is prolonged.
Description
Technical field
The present invention relates to field of material technology, particularly relate to a kind of inorganic coating and preparation method thereof.
Background technology
Wear-resistant coating, as a kind of means of surface modification, can give the wear resisting property of body material excellence, extends its work-ing life.Therefore, the research of wear-resistant coating gets more and more people's extensive concerning always.Abrasion-resistant coating material requires low-friction coefficient usually, but some certain applications needs great friction coefficient coated material, as automobile synchronizer etc.Synchronizer is one of vitals of automobile gearbox, effectively can reduce the vibrations in automobile gear shift process, impact and noise, thus improves the stability of automobile operation and the security of traveling.The friction materials changing synchronizer structure and the synchronizer conical surface is the main means improving synchronizer performance.For guaranteeing the serviceability that wheel box is good, require that synchronizer friction lining material has the high and over-all properties such as stable frictional coefficient, good wear resistance, high temperature resistant, excellent resistance to shock loads ability.
Metal molybdenum (Mo) has the features such as the thermal shock resistance of anticorrosive, resistance to adhesive wear, high thermal conductivity, low-expansion coefficient and excellence, is often used to the tribological property improving speed reduction unit synchronous ring, internal-combustion engine piston ring.At present, the technique preparing molybdenum coating has detonation flame spraying, flame plating and plasma spraying etc.Explosive spray coating technique is more complicated, and this method prepares molybdenum coating rarely seen laboratory report.What industrial application was more is oxy-acetylene flame line-material coating method, and the method equipment is simple, but prepared molybdenum coating porosity is comparatively large, and coat inside, in conjunction with poor, causes that its wear resisting property reduces, work-ing life is partially short.Mo belongs to metallic substance, is easy to carry out mechanical workout, but simultaneously its hardness lower (1500MPa-1600MPa), cause its abrasion resistance properties to reduce, work-ing life is shorter.In molybdenum coating, add ceramic composition, be conducive to improving its wear resisting property.
Plasma spraying coating has the features such as porosity is low, bonding strength is high, spraying raw material is powder, spray material scope is wide.Existing research employing plasma spraying method has prepared the plasma spraying molybdenum alloy coat for automobile synchronizer at present, and have studied interpolation alloying element to the impact of its wear resisting property.
Zirconium carbide (ZrC), there is the features such as high rigidity (25.5GPa), high-melting-point (3420 DEG C) and good chemical stability, studiedly be applied to various severe rugged environment, as as abrasive material, for the processing of Wimet, corundum or glass, and the coating material etc. of fuel pellet in aerospace high temperature material and nuclear reaction.
CN104651770A discloses a kind ofly has inorganic coating of great friction coefficient and low wear rate and preparation method thereof, and described coating adopts Mo-ZrC composite granule to be raw material, and spraying obtains on metal base, and in described coating, ZrC content is 10 ~ 80vol.%.This coating can keep the feature of great friction coefficient, reduces its wear rate simultaneously, thus extends its work-ing life.But this coating still haves much room for improvement in erosion resistance and hot expansibility.
Therefore, how to research and develop and a kind ofly there is great friction coefficient and low wear rate and there is excellent erosion resistance, and the inorganic coating with lower thermal expansivity is current emphasis.
Summary of the invention
For solving deficiency of the prior art, the present invention, by each component in adjustment inorganic coating, improves each performance of coating, makes it while having great friction coefficient and low wear rate, also has excellent erosion resistance, and has lower thermal expansivity.
For reaching this object, present invention employs following technical scheme:
First aspect, the invention provides a kind of inorganic coating, and described coating contains Mo, Zr, Mn, Ti, and wherein the ratio of Zr, Mo, Mn and Ti element is 3-1:1-2:1-3:2-5.
The ratio of the element of Zr, Mo, Mn and Ti described in the present invention is 3-1:1-2:1-3:2-5, such as, can be 3:2:1:5,3:1:1:2,3:2:1:3,3:2:1:2,3:2:3:5,3:2:1:4, is preferably 3:2:1:4.
Mn and Ti is introduced Mo-ZrC coating as second-phase by the present invention, by metallic substance Mn and Ti and Mo and ZrC combination, except keeping the feature of great friction coefficient, reduce beyond its wear rate simultaneously, unexpected its erosion resistance also with excellence that finds, and there is lower thermal expansivity.
In the present invention, described coat-thickness is 200-1000 μm, such as, can be 200 μm, 400 μm, 600 μm, 800 μm, 1000 μm, is preferably 300-600 μm.
Preferably, the frictional coefficient of described coating is 0.72-0.85, is preferably 0.81-0.85.
Second aspect, present invention also offers the preparation method of the inorganic coating described in first aspect, comprises the following steps:
With the composite granule containing Mo, Zr, Mn, Ti for raw material, spraying obtains on metal base.
In the present invention, the method for described spraying is plasma spraying method; Preferably, described metal base comprises stainless steel.
As preferred technical scheme, described preparation method comprises the following steps:
(1) by the composition of described coating, Mo powder, ZrC powder, Mn powder, Ti powder is taken respectively, after Homogeneous phase mixing, as material powder;
(2) using plasma spraying technology, is sprayed on material powder on base material, obtains described coating.
In the present invention, described Mo powder, ZrC powder, Mn powder, Ti powder realize Homogeneous phase mixing by mechanical attrition method; Preferably, the particle diameter of described Mo powder is 10-120 μm, and purity is greater than 95wt%; The particle diameter of ZrC powder is 10-90 μm, and purity is greater than 95wt%; The particle diameter of described Mn powder is 10-100 μm, and purity is greater than 99wt%; The particle diameter of described Ti powder is 20-100 μm, and purity is greater than 98wt%.
In the present invention, the processing parameter of described plasma spraying comprises: plasma gas Ar:30-50slpm; Plasma gas H2:5-20slpm, preferred 8-18slpm; Powder carrier gas Ar:1.5-5slpm; Spray distance: 80-350mm, preferred 80-250mm; Spray power: 30-58KW; Powder feeding rate: 6-30r/ minute; Spray pressure: 100-800mbar.
Compared with prior art, the present invention at least has following beneficial effect:
Mn and Ti is introduced Mo-ZrC coating as second-phase by the present invention, by metallic substance Mn and Ti and Mo and ZrC combination, except keeping the feature of great friction coefficient, reduce beyond its wear rate simultaneously, unexpected its erosion resistance also with excellence that finds, and there is lower thermal expansivity.
Embodiment
Following embodiment further illustrates the present invention, should be understood that following embodiment is only for illustration of the present invention, and unrestricted the present invention.
Enumerate embodiment below further to describe the present invention in detail.Should understand equally; following examples are only used to further illustrate the present invention; can not be interpreted as limiting the scope of the invention, some nonessential improvement that those skilled in the art's foregoing according to the present invention is made and adjustment all belong to protection scope of the present invention.The processing parameter etc. that following example is concrete is also only an example in OK range, and namely those skilled in the art can be done in suitable scope by explanation herein and select, and do not really want the concrete numerical value being defined in Examples below.
Embodiment 1
Preparation Mo-ZrC-Mn-Ti composite granule:
Take raw material according to the following ratio: the volume content of ZrC powder is 30%, and particle diameter is 10-90 μm; The volume content of Mo powder is 20%, and particle diameter is 10-120 μm; The volume content of Mn powder is 10%, and particle diameter is 10-100 μm; The volume content of Ti powder is 40%, and particle diameter is 20-100 μm; Mechanically mixing in whirling vibration ball mill, ball grinder speed of rotation is set as 150rpm (rpm), and ratio of grinding media to material (mass ratio) is 2:1.Ball milling, after 3 hours, takes off ball grinder, and composite granule sieves for subsequent use through 80 orders.
Preparation coating:
1) pre-treatment is carried out to stainless steel substrate: the stainless steel disk base material (Ф 60mm × 8mm) after sandblasting (sandblasting pressure is about 0.2MPa) process is placed in ethanol solution ultrasonic 5 minutes, dry for standby;
2) using plasma spraying technology, equipment is the A-2000 plasma spray system of SulzerMetro company (Switzerland), the S3 type mechanical manipulator composition that this system is produced primarily of F4-MB type spray gun and ABB AB (U.S.), powder feeder is the two powder feed system of Twin-10 type.Coating prepared by stainless steel disk base material after treatment, and the plasma spray process parameter of employing is as follows: plasma gas Ar flow is 32slpm; Plasma gas H
2flow is 16slpm; Powder carrier gas Ar flow is 5slpm; Spray distance is 140mm; Rate of feed is 25r/min; Spray power is 32kW; The powder sprayed is obtained Mo-ZrC-Mn-Ti composite granule.
Embodiment 2
Preparation Mo-ZrC-Mn-Ti composite granule:
Take raw material according to the following ratio: the volume content of ZrC powder is 32%, and particle diameter is 10-90 μm; The volume content of Mo powder is 25%, and particle diameter is 10-120 μm; The volume content of Mn powder is 11%, and particle diameter is 10-100 μm; The volume content of Ti powder is 32%, and particle diameter is 20-100 μm; Mechanically mixing in whirling vibration ball mill, ball grinder speed of rotation is set as 150rpm (rpm), and ratio of grinding media to material (mass ratio) is 2:1.Ball milling, after 3 hours, takes off ball grinder, and composite granule sieves for subsequent use through 80 orders.
Preparation coating:
1) pre-treatment is carried out to stainless steel substrate: the stainless steel disk base material (Ф 60mm × 8mm) after sandblasting (sandblasting pressure is about 0.2MPa) process is placed in ethanol solution ultrasonic 5 minutes, dry for standby;
2) using plasma spraying technology, equipment is the A-2000 plasma spray system of SulzerMetro company (Switzerland), the S3 type mechanical manipulator composition that this system is produced primarily of F4-MB type spray gun and ABB AB (U.S.), powder feeder is the two powder feed system of Twin-10 type.Coating prepared by stainless steel disk base material after treatment, and the plasma spray process parameter of employing is as follows: plasma gas Ar flow is 32slpm; Plasma gas H
2flow is 16slpm; Powder carrier gas Ar flow is 5slpm; Spray distance is 140mm; Rate of feed is 25r/min; Spray power is 32kW; The powder sprayed is obtained Mo-ZrC-Mn-Ti composite granule.
The coating of embodiment 1-2 is carried out following performance measurement.
Salt spray resistance: according to GB/T1763-1979 " paint film chemical reagent resistance assay method ", carry out 3000h test with 3%NaCl, result display is all without exception.
Alkali resistance: GB/T1763-1979 " paint film chemical reagent resistance assay method ", carries out 1000h test with 10%NaOH, and result display is all without exception.
Acid resistance: GB/T1763-1979 " paint film chemical reagent resistance assay method ", carries out 1000h test with 10%HCl, and result display is all without exception.
Comparative example 1
Preparation Mo-ZrC composite granule:
Be that 40% to take particle diameter be respectively the Mo powder of 10-100 μm and particle diameter is the ZrC powder of 10 ~ 80 μm by ZrC volume content, mechanically mixing in whirling vibration ball mill, ball grinder speed of rotation is set as 150rpm (rpm), and ratio of grinding media to material (mass ratio) is 2:1.Ball milling, after 3 hours, takes off ball grinder, and composite granule sieves for subsequent use through 80 orders.
Preparation coating:
1) pre-treatment is carried out to stainless steel substrate: the stainless steel disk base material (Ф 60mm × 8mm) after sandblasting (sandblasting pressure is about 0.2MPa) process is placed in ethanol solution ultrasonic 5 minutes, dry for standby;
2) using plasma spraying technology, equipment is the A-2000 plasma spray system of SulzerMetro company (Switzerland), the S3 type mechanical manipulator composition that this system is produced primarily of F4-MB type spray gun and ABB AB (U.S.), powder feeder is the two powder feed system of Twin-10 type.Coating prepared by stainless steel disk base material after treatment, and the plasma spray process parameter of employing is as follows: plasma gas Ar flow is 32slpm; Plasma gas H
2flow is 16slpm; Powder carrier gas Ar flow is 5slpm; Spray distance is 140mm; Rate of feed is 25r/min; Spray power is 32kW; The powder sprayed is obtained Mo-ZrC composite granule.
Comparative example 2
Preparation Mo-ZrC-Mn composite granule:
Take raw material according to the following ratio: the volume content of ZrC powder is 40%, and particle diameter is 10-90 μm; The volume content of Mo powder is 50%, and particle diameter is 10-120 μm; The volume content of Mn powder is 10%, and particle diameter is 10-100 μm; Mechanically mixing in whirling vibration ball mill, ball grinder speed of rotation is set as 150rpm (rpm), and ratio of grinding media to material (mass ratio) is 2:1.Ball milling, after 3 hours, takes off ball grinder, and composite granule sieves for subsequent use through 80 orders.
Preparation coating:
1) pre-treatment is carried out to stainless steel substrate: the stainless steel disk base material (Ф 60mm × 8mm) after sandblasting (sandblasting pressure is about 0.2MPa) process is placed in ethanol solution ultrasonic 5 minutes, dry for standby;
2) using plasma spraying technology, equipment is the A-2000 plasma spray system of SulzerMetro company (Switzerland), the S3 type mechanical manipulator composition that this system is produced primarily of F4-MB type spray gun and ABB AB (U.S.), powder feeder is the two powder feed system of Twin-10 type.Coating prepared by stainless steel disk base material after treatment, and the plasma spray process parameter of employing is as follows: plasma gas Ar flow is 32slpm; Plasma gas H
2flow is 16slpm; Powder carrier gas Ar flow is 5slpm; Spray distance is 140mm; Rate of feed is 25r/min; Spray power is 32kW; The powder sprayed is obtained Mo-ZrC-Mn composite granule.
Comparative example 3
Preparation Mo-ZrC-Ti composite granule:
Take raw material according to the following ratio: the volume content of ZrC powder is 40%, and particle diameter is 10-90 μm; The volume content of Mo powder is 50%, and particle diameter is 10-120 μm; The volume content of Ti powder is 10%, and particle diameter is 10-100 μm; Mechanically mixing in whirling vibration ball mill, ball grinder speed of rotation is set as 150rpm (rpm), and ratio of grinding media to material (mass ratio) is 2:1.Ball milling, after 3 hours, takes off ball grinder, and composite granule sieves for subsequent use through 80 orders.
Preparation coating:
1) pre-treatment is carried out to stainless steel substrate: the stainless steel disk base material (Ф 60mm × 8mm) after sandblasting (sandblasting pressure is about 0.2MPa) process is placed in ethanol solution ultrasonic 5 minutes, dry for standby;
2) using plasma spraying technology, equipment is the A-2000 plasma spray system of SulzerMetro company (Switzerland), the S3 type mechanical manipulator composition that this system is produced primarily of F4-MB type spray gun and ABB AB (U.S.), powder feeder is the two powder feed system of Twin-10 type.Coating prepared by stainless steel disk base material after treatment, and the plasma spray process parameter of employing is as follows: plasma gas Ar flow is 32slpm; Plasma gas H
2flow is 16slpm; Powder carrier gas Ar flow is 5slpm; Spray distance is 140mm; Rate of feed is 25r/min; Spray power is 32kW; The powder sprayed is obtained Mo-ZrC-Ti composite granule.
Cated friction disc will be sprayed, through a series ofly to polish, after polished finish (surface roughness Ra is less than 0.5 μm), with the YG6 sintered carbide ball (main component is WC-Co) of Ф 9.525mm with ball-dish (Ball-on-disk) way of contact to mill.Wearing test equipment is the UMT-3 multifunction friction wear tester of U.S. CE TR company.Wearing test condition is: low load 20N, linear velocity 0.5m/s, test duration 900s.Frictional coefficient is directly read by friction device.
By embodiment 1-2 and comparative example 1-3 being carried out the reading of frictional coefficient, it is respectively in low load 20N situation, and Volume erosion rate (W) is as shown in table 1.
Can be found out by the above results, the present invention is by the composition of adjustment inorganic coating, by increasing Mn and Ti element, compare and adopt separately Mo-ZrC, Mo-ZrC-Mn or Mo-ZrC-Ti compound coating, except keeping the feature of great friction coefficient, reduce beyond its wear rate, it also has excellent erosion resistance, and has lower thermal expansivity simultaneously.
Applicant states, the present invention illustrates processing method of the present invention by above-described embodiment, but the present invention is not limited to above-mentioned processing step, does not namely mean that the present invention must rely on above-mentioned processing step and could implement.Person of ordinary skill in the field should understand, any improvement in the present invention, to equivalence replacement and the interpolation of ancillary component, the concrete way choice etc. of raw material selected by the present invention, all drops within protection scope of the present invention and open scope.
Claims (8)
1. an inorganic coating, is characterized in that, described coating contains Mo, Zr, Mn, Ti, and wherein the ratio of Zr, Mo, Mn and Ti element is 3-1:1-2:1-3:2-5.
2. inorganic coating according to claim 1, is characterized in that, the ratio of described Zr, Mo, Mn and Ti element is 3:2:1:4.
3. inorganic coating according to claim 1 and 2, is characterized in that, described coat-thickness is 200-1000 μm, is preferably 300-600 μm;
Preferably, the frictional coefficient of described coating is 0.72-0.85, is preferably 0.81-0.85.
4. the preparation method of the inorganic coating according to any one of claim 1-3, is characterized in that, comprises the following steps:
With the composite granule containing Mo, Zr, Mn, Ti for raw material, spraying obtains on metal base.
5. method according to claim 4, is characterized in that, the method for described spraying is plasma spraying method;
Preferably, described metal base comprises stainless steel.
6. method according to claim 4, is characterized in that, said method comprising the steps of:
(1) by the composition of described coating, Mo powder, ZrC powder, Mn powder, Ti powder is taken respectively, after Homogeneous phase mixing, as material powder;
(2) using plasma spraying technology, is sprayed on material powder on base material, obtains described coating.
7. method according to claim 6, is characterized in that, described Mo powder, ZrC powder, Mn powder, Ti powder realize Homogeneous phase mixing by mechanical attrition method;
Preferably, the particle diameter of described Mo powder is 10-120 μm, and purity is greater than 95wt%; The particle diameter of ZrC powder is 10-90 μm, and purity is greater than 95wt%; The particle diameter of described Mn powder is 10-100 μm, and purity is greater than 99wt%; The particle diameter of described Ti powder is 20-100 μm, and purity is greater than 98wt%.
8. method according to claim 6, is characterized in that, the processing parameter of described plasma spraying comprises: plasma gas Ar:30-50slpm; Plasma gas H2:5-20slpm, preferred 8-18slpm; Powder carrier gas Ar:1.5-5slpm; Spray distance: 80-350mm, preferred 80-250mm; Spray power: 30-58KW; Powder feeding rate: 6-30r/ minute; Spray pressure: 100-800mbar.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107435129A (en) * | 2017-06-29 | 2017-12-05 | 顾渊 | A kind of inorganic coating and preparation method thereof |
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| US3446655A (en) * | 1964-06-24 | 1969-05-27 | Bristol Siddeley Engines Ltd | Method of producing refractory metal articles |
| CN1354274A (en) * | 2000-11-22 | 2002-06-19 | 中国科学院金属研究所 | Nickel base amorphous alloy |
| CN1498984A (en) * | 2002-11-07 | 2004-05-26 | 财团法人工业技术研究院 | Multi-element alloy coat |
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2015
- 2015-11-14 CN CN201510781299.3A patent/CN105483596B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3446655A (en) * | 1964-06-24 | 1969-05-27 | Bristol Siddeley Engines Ltd | Method of producing refractory metal articles |
| CN1354274A (en) * | 2000-11-22 | 2002-06-19 | 中国科学院金属研究所 | Nickel base amorphous alloy |
| CN1498984A (en) * | 2002-11-07 | 2004-05-26 | 财团法人工业技术研究院 | Multi-element alloy coat |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107435129A (en) * | 2017-06-29 | 2017-12-05 | 顾渊 | A kind of inorganic coating and preparation method thereof |
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| CN105483596B (en) | 2018-08-07 |
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