CN111043306A - Ceramic piston rod and ceramic coating spraying process thereof - Google Patents
Ceramic piston rod and ceramic coating spraying process thereof Download PDFInfo
- Publication number
- CN111043306A CN111043306A CN201911385597.5A CN201911385597A CN111043306A CN 111043306 A CN111043306 A CN 111043306A CN 201911385597 A CN201911385597 A CN 201911385597A CN 111043306 A CN111043306 A CN 111043306A
- Authority
- CN
- China
- Prior art keywords
- piston rod
- spraying
- ceramic
- coating
- ceramic coating
- 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.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J7/00—Piston-rods
-
- 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
- C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
-
- 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
- C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
- C23C4/11—Oxides
-
- 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
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/134—Plasma spraying
-
- 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
- C23C4/18—After-treatment
Abstract
The invention discloses a ceramic piston rod, which is formed by spraying a ceramic coating on the surface of a piston rod body, wherein a signal groove forming detection section with equal thread intervals is processed on the surface of the piston rod body under the ceramic coating, a 45-degree chamfer is expanded outside a notch of the signal groove, the width of the chamfer is 1/6 of the width of the notch, the ceramic coating sprayed in the signal groove and the surface of the ceramic coating outside the notch are flush and integrated, the ceramic coating is provided with a bottom layer and a surface layer, the bottom layer is made of nickel carbide and has the thickness of more than 150 mu m, and the surface layer is made of Cr2O3－TiO2And the thickness is more than 200 mu m. The invention provides a potteryThe ceramic piston rod improves the comprehensive performance of the ceramic piston rod by optimizing the ceramic coating on the surface of the ceramic piston rod and the spraying process.
Description
Technical Field
The invention relates to a piston rod, in particular to a ceramic piston rod and a ceramic coating spraying process thereof.
Background
The piston rod of the hoist is in service in a humid environment for a long time, the piston rod in the hoist not only needs to bear the abrasion of sundries such as sand grains and the like adsorbed on the surface of the piston rod, but also needs to bear the corrosion of the humid environment and various polluted environments, the performance of the piston rod is seriously influenced, the service life of the piston rod is shortened, and the reliability and the stability of the operation of the piston rod are seriously influenced. The safety reliability and stability of the piston rod operation are of great importance, and the property and life safety of people are seriously influenced. In order to prolong the service life of the piston rod, the design is mainly performed on the aspects of rigidity, strength, heat treatment, chromium plating and fatigue resistance of a part structure, the selection of the whole material of the part is emphasized by the piston rod material selection principle, and the selection of the base material and the selection of the surface material are considered comprehensively, so that the hardness, the wear resistance, the friction coefficient, the service life and other comprehensive properties of the existing piston rod are not enough.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a ceramic piston rod, and the comprehensive performance of the ceramic piston rod is improved by optimizing a surface ceramic coating and a spraying process of the ceramic piston rod.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a ceramic piston rod, is formed by piston rod body surface spraying ceramic coating, its characterized in that: piston rod body surface machining under ceramic coating has the signal groove of equal thread spacing to form the detection section, and signal groove notch expands outward has 45 chamfers, and the chamfer width is 1/6 of notch width, the ceramic coating of signal inslot spraying flushes with the ceramic coating surface outside the groove and forms an organic whole, ceramic coating has bottom and top layer, and the bottom material is nickel carbide, and thickness is greater than 150 mu m, and the top layer material is Cr2O3－TiO2And the thickness is more than 200 mu m.
A ceramic coating spraying process of a ceramic piston rod comprises the following steps:
a. pretreatment: the piston rod body is subjected to purification treatment, then sand blasting treatment is carried out by using carborundum, the surface roughness of the piston rod body reaches 0.8-10 mu m, and the sand blasting pressure is controlled to be 0.5-0.7 MPa;
b. preheating: preheating the pre-treated piston rod body, controlling the preheating temperature to be 60-120 ℃, and the preheating time to be 1-2 min, so as to eliminate the water on the surface of the piston rod body;
c. bottom layer spraying: spraying nickel carbide powder on the surface of the piston rod by using plasma spraying equipment, controlling the spraying current to be 680-720A, the spraying voltage to be 45-47V, the powder feeding rate to be 26-27 g/min, the single spraying distance to be 1.2m, the spray gun speed to be 100-105 mm/s and the spraying angle to be 90 degrees;
d. surface layer spraying: cr is carried out on the surface of a piston rod by adopting plasma spraying equipment2O3－TiO2Powder spraying, wherein the spraying current is controlled to be 780-820A, the spraying voltage is controlled to be 46-49V, the powder feeding rate is 44-45 g/min, the single spraying distance is 1m, the speed of a spray gun is 100-105 mm/s, and the spraying angle is 90 degrees;
e. hole sealing treatment: uniformly coating hole sealing liquid made of epoxy resin liquid glue on the surface of the piston rod, pressing while coating to enable the hole sealing liquid to be immersed into the coating, standing for 30min after coating, then sending the coating into an oven to be dried, controlling the temperature of the oven to be 50-60 ℃, the drying time to be 1h, and repeatedly circulating for 2-3 times.
Preferably, the purification treatment in step a comprises ultrasonic oil removal and thermal degreasing.
Preferably, the plasma spraying gas in the steps c and d is argon and helium, the feeding amount of the argon is 64L/min, and the feeding amount of the helium is 23L/min.
Preferably, the nickel carbide powder in step c and the Cr powder in step d2O3－TiO2The powder is placed into a drying oven for preheating for 5 hours before spraying, and the temperature of the drying oven is controlled to be 60-70 ℃.
Preferably, after each hole sealing and drying in the step e, the epoxy resin adhesive on the surface is ground by using sand paper.
Compared with the prior art, the ceramic piston rod disclosed by the invention adopts Cr2O3－TiO2As the surface layer, the overall hardness is greatly enhanced, the hardness of the piston rod can reach more than 900HV, plasma spraying is adopted during spraying, the density of the coating is improved by controlling various spraying parameters, so that the bending strength and the impact resistance value are improved, the piston rod is subjected to preheating treatment before spraying operation, the bonding strength of the ceramic coating and the piston rod body is effectively improved, the hole sealing process is optimized, the corrosion resistance of the ceramic coating is improved, the coating gaps are deeply sealed, the coating is prevented from being oxidized, the air tightness is ensured, and the service life of the ceramic coating in a humid environment is prolongedIts life is long.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a block diagram of an embodiment of the present invention;
fig. 2 is a partially enlarged view of a portion a in fig. 1.
In the attached drawing, 1-a piston rod body, 2-a signal groove and 3-a chamfer.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
As shown in figures 1-2, the ceramic piston rod disclosed by the invention is characterized in that a ceramic coating is sprayed on the surface of a piston rod body 1, a signal groove 2 with equal thread intervals is machined on the surface of the piston rod body under the ceramic coating to form a detection section, a 45-degree chamfer 3 is expanded outside a notch of the signal groove, the chamfer width is 1/6 of the notch width, the ceramic coating sprayed in the signal groove and the ceramic coating outside the signal groove are flush and integrated, the ceramic coating is provided with a bottom layer and a surface layer, the bottom layer is made of nickel carbide and has a thickness larger than 150 mu m, and the surface layer is made of Cr2O3－TiO2And the thickness is more than 200 mu m.
A ceramic coating spraying process of a ceramic piston rod comprises the following steps:
a. pretreatment: the piston rod body is subjected to purification treatment, then sand blasting treatment is carried out by using carborundum, the surface roughness of the piston rod body reaches 0.8-10 mu m, and the sand blasting pressure is controlled to be 0.5-0.7 MPa;
the purification treatment aims at removing the surface of the piston rod and the penetrated grease, ultrasonic waves can be adopted to cooperate with surface active emulsion to remove oil, and then a heating method is utilized to carry out surface degreasing;
the sand blasting is to increase the contact surface of the coating with the surface of the piston rod, thereby improving the adhesive strength.
b. Preheating: preheating the pre-treated piston rod body, controlling the preheating temperature to be 60-120 ℃, and the preheating time to be 1-2 min, eliminating the water on the surface of the piston rod body, improving the bonding strength of the coating and the piston rod, and reducing the cracking of the coating caused by stress due to the difference of thermal expansion.
c. Bottom layer spraying: the method comprises the steps of spraying nickel carbide powder on the surface of a piston rod by adopting plasma spraying equipment, feeding the nickel carbide powder into a drying furnace to be preheated for 5 hours before spraying, controlling the preheating temperature of the drying furnace to be 60-70 ℃, then controlling the spraying current to be 680-720A during spraying, controlling the spraying voltage to be 45-47V, controlling the powder feeding rate to be 26-27 g/min, controlling the spraying distance of one time to be 1.2m, the speed of a spray gun to be 100-105 mm/s, the spraying angle to be 90 degrees, spraying gas to be argon and helium, feeding the argon at 64L/min, feeding the helium at 23L/min, checking the appearance after spraying, and observing whether cracks, peeling or oxidation phenomena exist.
d. Surface layer spraying: cr is carried out on the surface of a piston rod by adopting plasma spraying equipment2O3－TiO2Powder spray coating of Cr2O3－TiO2The powder is required to be sent into a drying furnace to be preheated for 5 hours before spraying, the preheating temperature of the drying furnace is controlled to be 60-70 ℃, the spraying current is controlled to be 780-820A, the spraying voltage is 46-49V, the powder feeding rate is 44-45 g/min, the single spraying distance is 1m, the speed of a spray gun is 100-105 mm/s, the spraying angle is 90 degrees, the spraying gas is argon gas and helium gas, the feeding amount of argon gas is 64L/min, the feeding amount of helium gas is 23L/min, the appearance is checked after spraying, and whether cracks, peeling or oxidation phenomena exist is observed.
e. Hole sealing treatment: uniformly coating hole sealing liquid made of epoxy resin liquid adhesive on the surface of the piston rod, pressing while coating to enable the hole sealing liquid to be immersed into the coating, standing for 30min after coating, then sending the coating into an oven for drying, controlling the temperature of the oven to be 50-60 ℃, the drying time to be 1h, repeatedly circulating for 2-3 times, and repeating for 2-3 times every timeAnd after the secondary hole sealing is dried, the epoxy resin glue on the surface is ground by using sand paper.2
The ceramic piston rod prepared by the process is subjected to various performance tests, and the test results are shown in table 1:
from the above parameters, it can be seen that Cr is used2O3－TiO2As the surface layer, the overall hardness is greatly enhanced, so that the hardness of the piston rod can reach over 900HV, plasma spraying is adopted during spraying, the density of the coating is improved by controlling various spraying parameters, the bending strength and the impact resistance value are improved, the piston rod is subjected to preheating treatment before spraying operation, the bonding strength of the ceramic coating and the piston rod body is effectively improved, the hole sealing process is optimized, the corrosion resistance of the ceramic coating is improved, the coating gaps are deeply sealed and filled, the coating is prevented from being oxidized, the air tightness is ensured, and the service life of the ceramic coating in a humid environment is prolonged.
Therefore, the scope of the present invention should not be limited to the disclosure of the embodiments, but includes various alternatives and modifications without departing from the scope of the present invention, which is defined by the claims of the present patent application.
Claims (6)
1. The utility model provides a ceramic piston rod, is formed by piston rod body surface spraying ceramic coating, its characterized in that: piston rod body surface machining under ceramic coating has the signal groove of equal thread spacing to form the detection section, and signal groove notch expands outward has 45 chamfers, and the chamfer width is 1/6 of notch width, the ceramic coating of signal inslot spraying flushes with the ceramic coating surface outside the groove and forms an organic whole, ceramic coating has bottom and top layer, and the bottom material is nickel carbide, and thickness is greater than 150 mu m, and the top layer material is Cr2O3－TiO2And the thickness is more than 200 mu m.
2. A ceramic coating spraying process based on the ceramic piston rod of claim 1, characterized by comprising the steps of:
a. pretreatment: the piston rod body is subjected to purification treatment, then sand blasting treatment is carried out by using carborundum, the surface roughness of the piston rod body reaches 0.8-10 mu m, and the sand blasting pressure is controlled to be 0.5-0.7 MPa;
b. preheating: preheating the pre-treated piston rod body, controlling the preheating temperature to be 60-120 ℃, and the preheating time to be 1-2 min, so as to eliminate the water on the surface of the piston rod body;
c. bottom layer spraying: spraying nickel carbide powder on the surface of the piston rod by using plasma spraying equipment, controlling the spraying current to be 680-720A, the spraying voltage to be 45-47V, the powder feeding rate to be 26-27 g/min, the single spraying distance to be 1.2m, the spray gun speed to be 100-105 mm/s and the spraying angle to be 90 degrees;
d. surface layer spraying: cr is carried out on the surface of a piston rod by adopting plasma spraying equipment2O3－TiO2Powder spraying, wherein the spraying current is controlled to be 780-820A, the spraying voltage is controlled to be 46-49V, the powder feeding rate is 44-45 g/min, the single spraying distance is 1m, the speed of a spray gun is 100-105 mm/s, and the spraying angle is 90 degrees;
e. hole sealing treatment: uniformly coating hole sealing liquid made of epoxy resin liquid glue on the surface of the piston rod, pressing while coating to enable the hole sealing liquid to be immersed into the coating, standing for 30min after coating, then sending the coating into an oven to be dried, controlling the temperature of the oven to be 50-60 ℃, the drying time to be 1h, and repeatedly circulating for 2-3 times.
3. The ceramic coating spraying process of the ceramic piston rod as claimed in claim 2, characterized in that: the purification treatment in the step a comprises ultrasonic oil removal and thermal degreasing.
4. The ceramic coating spraying process of the ceramic piston rod as claimed in claim 2, characterized in that: and c, the plasma spraying gas in the steps c and d is argon gas and helium gas, the feeding amount of the argon gas is 64L/min, and the feeding amount of the helium gas is 23L/min.
5. The ceramic coating spraying process of the ceramic piston rod as claimed in claim 2, characterized in that: the nickel carbide powder in the step c and the Cr in the step d2O3－TiO2The powder is placed into a drying oven for preheating for 5 hours before spraying, and the temperature of the drying oven is controlled to be 60-70 ℃.
6. The ceramic coating spraying process of the ceramic piston rod as claimed in claim 2, characterized in that: and e, after sealing and drying each time in the step e, grinding the epoxy resin adhesive on the surface by using sand paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911385597.5A CN111043306A (en) | 2019-12-29 | 2019-12-29 | Ceramic piston rod and ceramic coating spraying process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911385597.5A CN111043306A (en) | 2019-12-29 | 2019-12-29 | Ceramic piston rod and ceramic coating spraying process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111043306A true CN111043306A (en) | 2020-04-21 |
Family
ID=70241012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911385597.5A Pending CN111043306A (en) | 2019-12-29 | 2019-12-29 | Ceramic piston rod and ceramic coating spraying process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111043306A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114887796A (en) * | 2022-05-13 | 2022-08-12 | 无锡市新达共创纳米科技有限公司 | Spraying processing technology for ceramic coating on surface of piston rod |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1986886A (en) * | 2005-12-20 | 2007-06-27 | 任希文 | High speed fuel gas spraying process for treating piston rod surface |
| CN201059302Y (en) * | 2007-02-09 | 2008-05-14 | 江苏武进液压启闭机有限公司 | Ceramic piston-rod of hydraulic cylinder having built-in stroke detecting apparatus |
| CN202692931U (en) * | 2012-07-11 | 2013-01-23 | 武汉华之洋光电系统有限责任公司 | Ceramic piston rod stroke detection device |
| CN103147033A (en) * | 2013-04-02 | 2013-06-12 | 南阳淅减汽车减振器有限公司 | Vehicle shock absorber piston rod spraying technology |
| CN103174624A (en) * | 2013-03-11 | 2013-06-26 | 戴亚洲 | Nano-metal ceramic coating piston rod and manufacturing method thereof |
| CN103775634A (en) * | 2014-02-21 | 2014-05-07 | 四川金星压缩机制造有限公司 | Composite coating piston rod and manufacturing method thereof |
| CN209180157U (en) * | 2018-12-14 | 2019-07-30 | 武汉德创捷机电技术有限公司 | A kind of cylinder body of built-in device for detecting distance of travel |
-
2019
- 2019-12-29 CN CN201911385597.5A patent/CN111043306A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1986886A (en) * | 2005-12-20 | 2007-06-27 | 任希文 | High speed fuel gas spraying process for treating piston rod surface |
| CN201059302Y (en) * | 2007-02-09 | 2008-05-14 | 江苏武进液压启闭机有限公司 | Ceramic piston-rod of hydraulic cylinder having built-in stroke detecting apparatus |
| CN202692931U (en) * | 2012-07-11 | 2013-01-23 | 武汉华之洋光电系统有限责任公司 | Ceramic piston rod stroke detection device |
| CN103174624A (en) * | 2013-03-11 | 2013-06-26 | 戴亚洲 | Nano-metal ceramic coating piston rod and manufacturing method thereof |
| CN103147033A (en) * | 2013-04-02 | 2013-06-12 | 南阳淅减汽车减振器有限公司 | Vehicle shock absorber piston rod spraying technology |
| CN103775634A (en) * | 2014-02-21 | 2014-05-07 | 四川金星压缩机制造有限公司 | Composite coating piston rod and manufacturing method thereof |
| CN209180157U (en) * | 2018-12-14 | 2019-07-30 | 武汉德创捷机电技术有限公司 | A kind of cylinder body of built-in device for detecting distance of travel |
Non-Patent Citations (1)
| Title |
|---|
| 黑龙江省农业机械修理研究所: "《拖拉机零件修理技术》", 31 August 1982, 黑龙江人民出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114887796A (en) * | 2022-05-13 | 2022-08-12 | 无锡市新达共创纳米科技有限公司 | Spraying processing technology for ceramic coating on surface of piston rod |
| CN114887796B (en) * | 2022-05-13 | 2023-11-24 | 无锡市新达共创纳米科技有限公司 | Spraying processing technology for ceramic coating on surface of piston rod |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5264074B2 (en) | coating | |
| Maksarov et al. | The formation of surface roughness of piston rings for the purpose of improving the adhesion of wear-resistant coatings | |
| CN111139465A (en) | Manufacturing method for manufacturing composite steel pipe by laser | |
| CN106086766A (en) | A kind of preparation method of high wear-resistant low-friction coefficient thermal Sperayed Ceramic Coatings | |
| WO2021073628A1 (en) | Cladding welding method applied to hydraulic support column | |
| CN113755780A (en) | Composite coating for titanium alloy gasket and preparation method thereof | |
| CN111043306A (en) | Ceramic piston rod and ceramic coating spraying process thereof | |
| CN103042471A (en) | Surface treatment method of piston inlaid ring | |
| CN114959543A (en) | Thermal spraying strengthening repair method for superficial defects of metal casting part | |
| CN113789495A (en) | 1Cr15Ni4Mo3N matrix surface coating composite repair process | |
| CN110819931B (en) | Powder-cored welding wire, preparation method and application thereof, porous coating and preparation method thereof | |
| CN111778469A (en) | Method for improving bonding strength of thermal spraying coating on surface of light alloy part | |
| CN112457061A (en) | Environment barrier coating with gradient change of components and preparation method thereof | |
| CN108165930A (en) | A kind of metallic surface treatment process | |
| CN110964999A (en) | Stabilizing roller for hot-dip galvanizing production line and preparation method thereof | |
| CN107620026A (en) | A kind of HVAF technique of pure alumina coating | |
| CN105483560B (en) | Coal mine hydraulic supporting column bore area stainless steel protective coating and coating processes | |
| CN109321872A (en) | A kind of preparation method of graphene enhancement type aluminising oil pipe | |
| CN102338162B (en) | Preparation method for metal-based polytetrafluoroethylene bearing | |
| US20200318504A1 (en) | Valve for internal combustion engines having a coating | |
| CN105162069B (en) | The remodeling method and energy-saving friction-reducing suspension clamp of a kind of suspension clamp | |
| CN112458274A (en) | Preparation method of fretting wear resistant coating on surface of titanium alloy workpiece | |
| CN110923615A (en) | Electrochemical impregnation modified damping wear-resistant coating and preparation method thereof | |
| CN113068423B (en) | Deep hole repairing and reinforcing method for aircraft structural part | |
| CN110643925A (en) | Multilayer inner hole coating and spraying method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200421 |