CN105543758A - Thermal-shock-resistant wear-resistant engine cylinder inner-wall coating and preparation method thereof - Google Patents
Thermal-shock-resistant wear-resistant engine cylinder inner-wall coating and preparation method thereof Download PDFInfo
- Publication number
- CN105543758A CN105543758A CN201510949105.6A CN201510949105A CN105543758A CN 105543758 A CN105543758 A CN 105543758A CN 201510949105 A CN201510949105 A CN 201510949105A CN 105543758 A CN105543758 A CN 105543758A
- Authority
- CN
- China
- Prior art keywords
- powder
- parts
- coating
- engine cylinder
- resistant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000011248 coating agent Substances 0.000 title claims abstract description 31
- 238000000576 coating method Methods 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims description 7
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000000843 powder Substances 0.000 claims abstract description 29
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 claims abstract description 21
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 14
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 claims abstract description 9
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims abstract description 9
- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical compound [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000010935 stainless steel Substances 0.000 claims abstract description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 8
- JRMUNVKIHCOMHV-UHFFFAOYSA-M tetrabutylammonium bromide Chemical compound [Br-].CCCC[N+](CCCC)(CCCC)CCCC JRMUNVKIHCOMHV-UHFFFAOYSA-M 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 230000035939 shock Effects 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 9
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000007750 plasma spraying Methods 0.000 claims description 4
- 239000012159 carrier gas Substances 0.000 claims description 3
- 230000004907 flux Effects 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 5
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 229910052750 molybdenum Inorganic materials 0.000 abstract description 2
- 239000011733 molybdenum Substances 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract description 2
- QXYJCZRRLLQGCR-UHFFFAOYSA-N dioxomolybdenum Chemical compound O=[Mo]=O QXYJCZRRLLQGCR-UHFFFAOYSA-N 0.000 abstract 2
- 235000015393 sodium molybdate Nutrition 0.000 abstract 2
- 239000011684 sodium molybdate Substances 0.000 abstract 2
- 229910001928 zirconium oxide Inorganic materials 0.000 abstract 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 229910000838 Al alloy Inorganic materials 0.000 description 6
- 229910001018 Cast iron Inorganic materials 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 101000908384 Bos taurus Dipeptidyl peptidase 4 Proteins 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 239000003831 antifriction material Substances 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- UQJSLVWCKFZHFO-UHFFFAOYSA-N molybdenum(4+) oxygen(2-) titanium(4+) Chemical compound [O-2].[O-2].[Ti+4].[Mo+4] UQJSLVWCKFZHFO-UHFFFAOYSA-N 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000003245 working 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
The invention discloses a thermal-shock-resistant wear-resistant engine cylinder inner-wall coating. The coating is prepared from the following raw materials in parts by weight: 68-69 parts of 361 stainless steel powder, 6-6.5 parts of Mo powder, 25-26 parts of Ni60 powder, 10-11 parts of WC, 1.3-1.5 parts of zirconium oxide , 2.3-2.5 parts of yttrium oxide, 8.5-10 parts of sodium molybdate, 4.5-4.8 parts of acetic anhydride, 75-80 parts of dimethyl formamide, a defined amount of concentrated hydrochloric acid and 10-12 parts of tetrabutylammonium bromide. According to the coating, by the use of sodium molybdate, nano molybdenum particles are formed on the surface of metal powder and meanwhile nano molybdenum dioxide is attached to the surface of metal powder, so that the lubricity and bonding strength of the coating are improved, and the phenomenon that the friction coefficient is increased sharply because micro-bulges occur after metal is worn is prevented; and by the use of WC, zirconium oxide and yttrium oxide, the formation and extension of a thermal-shock crack of the coating are prevented effectively, the wear resistance is improved and the service life of a cylinder is prolonged.
Description
Technical field
The present invention relates to automobile cylinder inside coating technical field, particularly relate to a kind of heat shock resistance engine cylinder inwall wear-resistant coating and preparation method thereof.
Background technology
Energy-saving and emission-reduction have become the ultimate aim of Global Auto enterprise.According to data, in Air Pollutants Emissions CO 66%, NOx 43%, HC 31%, CO
233%, 20% discharge all coming from automobile of particulate.Automotive light weight technology is very important for save energy, minimizing exhaust gas emission.Adopt aluminium alloy engine replace gradually traditional cast iron engine be energy-saving and emission-reduction main by way of one of.But because the strength and stiffness of aluminium alloy are all lower than the performance of cast iron, conventional method inlays cast iron liners to improve its wear resistance at aluminum alloy cylinder inwall.Cast iron liners not only casting technique is complicated, and production cost is higher, and embedded cast iron liners adds weight and the size of aluminium alloy engine, is unfavorable for energy-saving and emission-reduction.At present, prepare wear-resistant coating to replace cast iron liners in aluminum alloy cylinder inner wall surface, become the main method of motor car engine lightweight development.For the combustion chamber that engine cylinder and piston form, cylinder sleeve and piston not only work at high temperature under high pressure, also will bear the sulfide (SO that fuel combustion generates
2, SO
3) and burning time the water vapor that generates and the air of suction form the heavy corrosion that sulfuric acid and sulfurous acid brings, and stainless steel has become a kind of at the preferred coating making material of aluminum alloy cylinder inner wall surface with the solidity to corrosion of its excellence, higher mechanical property and thermostability, but its wear resistance can't meet application requiring." research of engine cylinder inwall novel wear resistant coating " one literary composition by add in Stainless Steel Powder proper ratio from molten powder Ni60 and antifriction material Mo, development of new composite powder, adopt plasma spraying technology to prepare wear resistant friction reducing coating, and the performance corresponding to stainless steel coating to the hardness of coating, bonding strength and wear resistance is analyzed.By compound coating prepared by the Mo+Ni60 adding 32%, bonding strength brings up to 43.63MPa by 33.85MPa; Microhardness brings up to 464.15Hv0.1 by 337.3Hv0.1.316+Mo+Ni60 coating wear resistant friction reducing performance is obviously better than stainless steel coating, with GCr15 material secondary slip is joined to bull ring time, frictional coefficient is reduced to 0.01-0.02 by 0.04-0.05.
But along with the progress of science and technology, the requirement of people to environmental protection, the needs to automotive performance are more and more higher, the rotproofness of this coating, wear resistance, oilness, cracking resistance, hardness, thermal-shock resistance, resistance to thermooxidation, thermotolerance, still can not meet the demands, require further improvement.
Summary of the invention
The object of the invention is exactly the defect in order to make up prior art, provides a kind of heat shock resistance engine cylinder inwall wear-resistant coating and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of heat shock resistance engine cylinder inwall wear-resistant coating, is made up of the raw material of following weight part: 316 powder of stainless steel 68-69, Mo powder 6-6.5, Ni60 powder 25-26, WC10-11, zirconium dioxide 1.3-1.5, yttrium oxide 2.3-2.5, Sodium orthomolybdate 8.5-10, acetic anhydride 4.5-4.8, dimethyl formamide 75-80, concentrated hydrochloric acid are appropriate, Tetrabutyl amonium bromide 10-12.
The preparation method of described heat shock resistance engine cylinder inwall wear-resistant coating, comprises the following steps:
(1) by Sodium orthomolybdate, acetic anhydride, dimethyl formamide mixing, adding concentrated hydrochloric acid adjust ph is 2.5-3, add Tetrabutyl amonium bromide while stirring again, be heated to 49-50 DEG C, stirring reaction 50-60 minute, add WC, zirconium dioxide, yttrium oxide again, continue stirring reaction 1-1.4 hour, obtain mixture;
(2) mixed with other remaining components by described mixture, grinding evenly, is heated to 186-195 DEG C and keeps this temperature to be evaporated completely to dimethyl formamide, then being clayed into power by gained block,
(3) by above-mentioned powder in nitrogen environment, at 500-510 DEG C, react 1.4-1.5 hour, obtain powder;
(4) powder that (3) step obtains being milled to granularity is 15-45 μm, 1-1.2 hour is dried at 80-85 DEG C, then plasma spraying is carried out, processing parameter Ar flow 45L/min, H flow 10/min, powder sending quantity 60L/min. carrier gas flux 2.5L/min, electric current 650A, power 48kW, spray is apart from 160mm.
Advantage of the present invention is: the present invention, by using Sodium orthomolybdate, forms nanometer molybdenum particle at metal powder surface, adheres to nanometer titanium dioxide molybdenum simultaneously, improve the oilness of coating, improve the bonding strength of coating simultaneously, after preventing metal to be worn, occur dimpling, cause frictional coefficient sharply to increase; By using WC, zirconium dioxide, yttrium oxide, effectively preventing the formation and spreading of the thermal shock crack of coating, improve resistance to abrasion, extending the work-ing life of cylinder.
Embodiment
A kind of heat shock resistance engine cylinder inwall wear-resistant coating, is made up of the raw material of following weight part (kilogram): 316 powder of stainless steel 68, Mo powder 6, Ni60 powder 25, WC10, zirconium dioxide 1.3, yttrium oxide 2.3, Sodium orthomolybdate 8.5, acetic anhydride 4.5, dimethyl formamide 75, concentrated hydrochloric acid are appropriate, Tetrabutyl amonium bromide 10.
The preparation method of described heat shock resistance engine cylinder inwall wear-resistant coating, comprises the following steps:
(1) by Sodium orthomolybdate, acetic anhydride, dimethyl formamide mixing, adding concentrated hydrochloric acid adjust ph is 2.5, then adds Tetrabutyl amonium bromide while stirring, be heated to 49 DEG C, stirring reaction 50 minutes, then add WC, zirconium dioxide, yttrium oxide, continue stirring reaction 1 hour, obtain mixture;
(2) mixed with other remaining components by described mixture, grinding evenly, is heated to 186 DEG C and keeps this temperature to be evaporated completely to dimethyl formamide, then being clayed into power by gained block,
(3) by above-mentioned powder in nitrogen environment, at 500 DEG C react 1.4 hours, obtain powder;
(4) powder that (3) step obtains being milled to granularity is 15 μm, dries 1 hour, then carry out plasma spraying at 80 DEG C, processing parameter Ar flow 45L/min, H flow 10/min, powder sending quantity 60L/min. carrier gas flux 2.5L/min, electric current 650A, power 48kW, spray is apart from 160mm.
By the equal compact structure of microscopic examination coating, do not have continuous hole and tiny crack, coating structure is good layered distribution, and bonding strength is 59.5MPa, and microhardness is 483.9HV0.1, and frictional coefficient is 0.007.
Claims (2)
1. a heat shock resistance engine cylinder inwall wear-resistant coating, is characterized in that being made up of the raw material of following weight part: 316 powder of stainless steel 68-69, Mo powder 6-6.5, Ni60 powder 25-26, WC10-11, zirconium dioxide 1.3-1.5, yttrium oxide 2.3-2.5, Sodium orthomolybdate 8.5-10, acetic anhydride 4.5-4.8, dimethyl formamide 75-80, concentrated hydrochloric acid are appropriate, Tetrabutyl amonium bromide 10-12.
2. the preparation method of heat shock resistance engine cylinder inwall wear-resistant coating according to claim 1, is characterized in that comprising the following steps:
(1) by Sodium orthomolybdate, acetic anhydride, dimethyl formamide mixing, adding concentrated hydrochloric acid adjust ph is 2.5-3, add Tetrabutyl amonium bromide while stirring again, be heated to 49-50 DEG C, stirring reaction 50-60 minute, add WC, zirconium dioxide, yttrium oxide again, continue stirring reaction 1-1.4 hour, obtain mixture;
(2) mixed with other remaining components by described mixture, grinding evenly, is heated to 186-195 DEG C and keeps this temperature to be evaporated completely to dimethyl formamide, then being clayed into power by gained block,
(3) by above-mentioned powder in nitrogen environment, at 500-510 DEG C, react 1.4-1.5 hour, obtain powder;
(4) powder that (3) step obtains being milled to granularity is 15-45 μm, 1-1.2 hour is dried at 80-85 DEG C, then plasma spraying is carried out, processing parameter Ar flow 45L/min, H flow 10/min, powder sending quantity 60L/min. carrier gas flux 2.5L/min, electric current 650A, power 48kW, spray is apart from 160mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510949105.6A CN105543758A (en) | 2015-12-18 | 2015-12-18 | Thermal-shock-resistant wear-resistant engine cylinder inner-wall coating and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510949105.6A CN105543758A (en) | 2015-12-18 | 2015-12-18 | Thermal-shock-resistant wear-resistant engine cylinder inner-wall coating and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105543758A true CN105543758A (en) | 2016-05-04 |
Family
ID=55823308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510949105.6A Withdrawn CN105543758A (en) | 2015-12-18 | 2015-12-18 | Thermal-shock-resistant wear-resistant engine cylinder inner-wall coating and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105543758A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105803454A (en) * | 2016-05-10 | 2016-07-27 | 贵州大学 | Composite coating material based on 45# steel substrate and preparing method of coating |
| CN115231934A (en) * | 2022-08-16 | 2022-10-25 | 郑州振中电熔新材料有限公司 | Yttrium zirconium spraying powder and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998014628A1 (en) * | 1996-10-02 | 1998-04-09 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Coated wear resisting parts for internal combustion engines, specially piston rings, and method for their production |
| CN102815749A (en) * | 2012-08-08 | 2012-12-12 | 西安工程大学 | Preparation method of molybdenum dioxide nanorod |
| CN105088126A (en) * | 2015-08-13 | 2015-11-25 | 马鞍山蓝科再制造技术有限公司 | Anti-thermal-shock thermal barrier coating with low thermal conductivity and preparation method thereof |
-
2015
- 2015-12-18 CN CN201510949105.6A patent/CN105543758A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998014628A1 (en) * | 1996-10-02 | 1998-04-09 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Coated wear resisting parts for internal combustion engines, specially piston rings, and method for their production |
| CN102815749A (en) * | 2012-08-08 | 2012-12-12 | 西安工程大学 | Preparation method of molybdenum dioxide nanorod |
| CN105088126A (en) * | 2015-08-13 | 2015-11-25 | 马鞍山蓝科再制造技术有限公司 | Anti-thermal-shock thermal barrier coating with low thermal conductivity and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 肖立新等: "发动机汽缸内壁新型耐磨涂层研究", 《热喷涂技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105803454A (en) * | 2016-05-10 | 2016-07-27 | 贵州大学 | Composite coating material based on 45# steel substrate and preparing method of coating |
| CN115231934A (en) * | 2022-08-16 | 2022-10-25 | 郑州振中电熔新材料有限公司 | Yttrium zirconium spraying powder and preparation method and application thereof |
| CN115231934B (en) * | 2022-08-16 | 2023-11-03 | 郑州振中电熔新材料有限公司 | Yttrium zirconium spraying powder and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105543762A (en) | High-strength environment-friendly wear-resistant coating for inner wall of internal combustion engine cylinder and preparation method of coating | |
| US10519854B2 (en) | Thermally insulated engine components and method of making using a ceramic coating | |
| CN104480460B (en) | In-situ synthesized wear-resistant self-lubricating coating on surface of titanium alloy by laser cladding | |
| CN103290406B (en) | Laser cladding in-situ synthesis ceramic phase reinforced Fe-base cladding layer and preparation method thereof | |
| CN102277022B (en) | Water-based chrome-free Dacromet coating solution and preparation method thereof | |
| JP6301060B2 (en) | Thermal spraying powder with superferritic iron-based compound and substrate, especially brake disc with thermal spray layer | |
| CN105441854A (en) | Thermal oxidization resistant engine cylinder inner wall abrasion resistant coating and preparation method thereof | |
| CN106007678A (en) | Ceramic coating with high-temperature resistance and wear resistance and preparation method of ceramic coating | |
| CN110079756A (en) | A kind of preparation method of chromium carbide wear-resistant coating | |
| CN106244974A (en) | A kind of preparation method of the wear-resistant thermal barrier coating of self-lubricating solid | |
| CN105908018A (en) | Novel composite thermal spraying powder and preparation method thereof | |
| KR20120030528A (en) | Iron-based spray material, method for producing a spray material, thermal spray layer, and spraying method | |
| CN102181815A (en) | Marine organism corrosion resistant ceramic coating and preparation method thereof | |
| CN105543758A (en) | Thermal-shock-resistant wear-resistant engine cylinder inner-wall coating and preparation method thereof | |
| CN105986218A (en) | Engine steam cylinder inner wall wear-resisting coating good in lubricating and preparing method of coating | |
| CN105543756A (en) | Corrosion-resistant wear-resistant self-lubricating engine cylinder inner-wall coating and preparation method thereof | |
| CN105543759A (en) | High-hardness corrosion-resistant wear-resistant engine cylinder inner-wall coating and preparation method thereof | |
| CN105543757A (en) | Heat-resistant wear-resistant engine cylinder inner-wall coating and preparation method thereof | |
| CN105568202A (en) | Corrosion-resistant engine cylinder inner wall wear-resistant coating and preparation method thereof | |
| CN105568201A (en) | Anti-crack wear-resistant coating of engine cylinder inner wall and preparation method thereof | |
| CN105441855A (en) | Engine cylinder inner wall highly abrasion resistant coating and preparation method thereof | |
| CN105543755A (en) | Wear-resistant coating for inner wall of heat-resistant and corrosion-resistant engine cylinder and preparation method of wear-resistant coating | |
| CN104862640A (en) | Method for preparing anti-erosion wearing-resistant coating of slurry pump overflowing part | |
| CN106634128A (en) | Anti-corrosion metal coating for hydraulic cylinder and preparation method thereof | |
| CN112030097A (en) | High-temperature gradient sealing coating for gas turbine and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20160504 |