CN100339509C - Part surface coated layer technological method - Google Patents
Part surface coated layer technological method Download PDFInfo
- Publication number
- CN100339509C CN100339509C CNB2005100985979A CN200510098597A CN100339509C CN 100339509 C CN100339509 C CN 100339509C CN B2005100985979 A CNB2005100985979 A CN B2005100985979A CN 200510098597 A CN200510098597 A CN 200510098597A CN 100339509 C CN100339509 C CN 100339509C
- Authority
- CN
- China
- Prior art keywords
- piece surface
- coating material
- cladding layer
- cladding
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The invention relates to a component surface melting coating technology method. It sprays the fusibility alloy powder using adhesive onto the surface of component after soaked to make the powder equally coat on the surface of the metal mechanism component, using flume for washing and recycling fusibility alloy powder to lower waste. Taking oil removal, sand blasting and pre-processed machine processes before spraying, and adopting finishing machine technology after coating, the quality of melting coating layer would be stable.
Description
Technical field
The present invention relates to a kind of piece surface treatment process, relate in particular to a kind of method at the piece surface cladding layer.
Background technology
In mechanical manufacturing field, the method that the surface through being commonly used in mechanical component adds alloy coat improves surface strength, surface abrasion resistance, the surface hardness of mechanical component and does corrodibility.Method commonly used is with laser, induction, plasma, oxygen
Method such as acetylene torch and vacuum sintering with the self-fluxing alloyed powder cladding in the metal machinery part surface.These methods all need prior at the mechanical precoated layer that needs to make on the part surface self-fluxing alloyed powder of metal, common employing oxygen one acetylene torch spraying method, plasma spraying method and hypersonic flame spraying method in making the precoated layer process.These methods all can cause the huge waste of powdered alloy, and the effective rate of utilization of powdered alloy only is 30～70%, and the precoated layer that these methods are made had ablation phenomen, and the quality of cladding coating is had disadvantageous effect.
This just needs a kind of processing method, can make powdered alloy be coated in the metal machinery part surface equably, waste simultaneously little, the utilization ratio height.Surface quality of workpieces after the cladding coating processing is uniform and stable, can satisfy the use properties requirement well.
Summary of the invention
In view of above-mentioned existing in prior technology problem, the purpose of this invention is to provide a kind of method at the piece surface cladding layer.Can make powdered alloy be coated in the metal machinery part surface equably, waste simultaneously little, the utilization ratio height.Surface quality of workpieces after the cladding coating processing is uniform and stable, can satisfy the use properties requirement well.
The objective of the invention is to be achieved through the following technical solutions:
A kind of method at the piece surface cladding layer comprises:
A, making precoated layer: the surface that the coating material preparation evenly is applied to part;
B, drying: the topcoat material preparation is solidified by seasoning or oven dry;
C, cladding coating: with the cladding of coating material preparation in piece surface;
Described steps A comprises:
A1, preparation coating material: soak into self-fluxing alloyed powder with caking agent, and isolate unnecessary caking agent, make coating material;
A2, applying surface coating material: the surface that the coating material of steps A 1 preparation is sprayed at part.The gauge control of coating is at 0.2mm～3mm.
Described steps A also comprises:
A3, recovery coating material: below part, be provided with the recovery tank in the coating procedure, the coating material that is painted on the surface is not isolated self-fluxing alloyed powder after washing.
The process of isolating unnecessary caking agent in the described steps A 1 comprises:
Adopt the aperture to go out unnecessary caking agent less than the screen filtration of self-fluxing alloyed powder granularity.
Described step B comprises:
Adopt infrared ray radiation while hot air circulate to dry 200 ℃～300 ℃ of hot air temperatures, drying time 5 seconds～15 minutes.
Described step C comprises:
The electromagnetic induction cladding coating: the size positions of setting apart from the surface at piece surface is provided with electromagnetic induction coil, adopts electromagnetic induction principle heated components surface, with the surface of coating material cladding in part;
Perhaps, adopt laser, plasma, oxy-acetylene flame or vacuum sintering method, with the surface of coating material cladding in part.
The main technologic parameters of described electromagnetic induction cladding coating is:
Be of a size of 1 millimeter～5 millimeters apart from the piece surface setting;
Electromagnetic oscillation frequency: 200Hz～250Hz;
Electromagnetic oscillation power: 100KW;
Output heating power: 85KW ± 5KW.
Described method at the piece surface cladding layer also comprises before steps A:
D, piece surface sandblast: piece surface is adopted jet absorption type or pressure type sandblast, remove the metal oxide and the impurity of piece surface, increase the sticking power on surface.
Described method at the piece surface cladding layer, described step D should steps A carry out in preceding 1 hour or completing steps D after place vacuum environment to prevent its oxidation described part.
Described method at the piece surface cladding layer also comprises before steps A:
E, piece surface oil removing: oil stain and the dirt of removing piece surface by the method for alkaline aqueous solution cleaning or flame baking;
Described employing alkaline aqueous solution is removed the oil stain of piece surface and the method for dirt is carried out part with alkaline aqueous solution
Flushing or immersion, concrete processing parameter is:
Alkaline solution formulation weight per-cent: sodium hydroxide 8 ‰～15 ‰, yellow soda ash 5 ‰～10 ‰, tertiary sodium phosphate 5 ‰～10 ‰, sodium laurylsulfonate 0.2 ‰～1 ‰, surplus are water;
Solution temperature: 50 ℃～60 ℃;
Soak time: 10 minutes～30 minutes;
Perhaps,
The method of described employing flame baking adopts the baking of reductibility oxy-acetylene flame, is baked to the piece surface oil stain and decomposes; Concrete processing parameter is:
Flame temperature: 6000 ℃～12000 ℃;
Workpiece surface temperature: less than 500 ℃.
By above scheme as can be known, a kind of method of the present invention at the piece surface cladding layer, be sprayed at the surface of part after self-fluxing alloyed powder soaked into caking agent, can make self-fluxing alloyed powder be coated in the metal machinery part surface equably, utilize tank to clean and reclaim self-fluxing alloyed powder, waste little, the utilization ratio height.Before spraying, adopt simultaneously oil removing, sandblast or pre-mechanical process, after cladding, adopted fine-processing technique again, made the surface quality of workpieces after cladding coating is processed uniform and stable, can satisfy the use properties requirement well.
Description of drawings
Fig. 1 is the method flow diagram one at the piece surface cladding layer of the present invention;
Fig. 2 is the sandblast schema of the method at the piece surface cladding layer of the present invention;
Fig. 3 is the method flow diagram two at the piece surface cladding layer of the present invention.
Embodiment
The specific embodiment of a kind of method at the piece surface cladding layer of the present invention is as shown in Figure 1:
Described method at the piece surface cladding layer, main process comprises:
A, making precoated layer
This process is the surface that the coating material preparation evenly is applied to part, generally comprises:
A1, preparation coating material: soak into self-fluxing alloyed powder with caking agent, and isolate unnecessary caking agent, make coating material; The separation method here is to adopt the aperture to go out unnecessary caking agent less than the screen filtration of self-fluxing alloyed powder granularity.But the granularity of the self-fluxing alloyed powder in the application of reality is all greater than the aperture of 320 eye mesh screens, so generally adopt 320 eye mesh screens to filter unnecessary caking agent.
The caking agent formula here (weight percent) is:
Water glass (modulus 〉=3) 10%～25%;
Honey 0.1%～1%;
Water surplus.
The screening formulation of prescription is:
Water glass (modulus 〉=3) 12%～20%;
Honey 0.2%～0.8%;
Water surplus.
The optimum formula of prescription is:
Water glass (modulus 〉=3) 15%;
Honey 0.4%;
Water surplus.
Mix by above arbitrary prescription and just can be used as caking agent and use.
A2, applying surface coating material: the surface that the coating material of steps A 1 preparation is coated on part; The gauge control of coating is at 0.2mm～3mm.Have three kinds of methods:
1, spraying: utilize the method for air spraying that coating material is coated on piece surface.Spray in piece surface after with forced draft coating material being smashed.This method is applicable to the part of any switch.
2, pair roller is rotary: utilize that roller is sticking gets that coating material is relative with part to be rotated, coating material evenly is coated on piece surface.The gap of control roller and part just can reach the purpose of control coating thickness.This method is applicable to the outer wall or the inwall of solid of revolution.
3, plunger extruding type: be provided with coating material at the plunger front end, plunger rotates forward, compressional movement, and coating material is overlying on piece surface, and the gap of plunger and part internal surface is exactly a coat-thickness.This method is applicable to cylindrical inwall.
A3, recovery coating material: below part, be provided with the recovery tank in the coating procedure, the coating material that is painted on the surface is not isolated self-fluxing alloyed powder after washing.The separation method here is to adopt the aperture to go out self-fluxing alloyed powder less than the screen filtration of self-fluxing alloyed powder granularity.But the granularity of the self-fluxing alloyed powder in the application of reality is all greater than the aperture of 320 eye mesh screens, so generally adopt 320 eye mesh screens to filter out self-fluxing alloyed powder.
B, drying
By seasoning or oven dry the topcoat material preparation is solidified; The infrared ray radiation while hot air circulate that adopt are dried more, 200 ℃～300 ℃ of hot air temperatures, and drying time 5 seconds～15 minutes, general requirement was smaller or equal to 10 minutes.
C, cladding coating
With the cladding of coating material preparation in piece surface.With the electromagnetic induction cladding is example: the size positions of setting apart from the surface at piece surface is provided with electromagnetic induction coil, adopts electromagnetic induction principle heated components surface, with the surface of coating material cladding in part.
The main technologic parameters of described electromagnetic induction cladding coating is:
Be of a size of 1 millimeter～5 millimeters apart from the piece surface setting;
Electromagnetic oscillation frequency: 200Hz～250Hz;
Electromagnetic oscillation power: 100KW;
Output heating power: 85KW ± 5KW.
Power supply: three-phase alternating current, voltage 380V, frequency 50Hz;
Power supply capacity: 180KW.
The electromagnetic induction coil that uses for axial workpiece is single turn, can adopt the cross section be circular round copper pipe around being pumped into, the wall thickness of round copper pipe should generally adopt 1 millimeter～1.5 millimeters greater than the thickness of cladding coating, external diameter is 10 millimeter.
In addition, this process can adopt the cladding lathe to finish, and the cladding lathe is the horizontal type machine tool that is made of headstock, the worktable that moves horizontally and pedestal.Headstock is installed on the worktable that moves horizontally, and the worktable that moves horizontally moves on base rail, and the main shaft placement moves horizontally with worktable and all adopts step motor control.Stepper-motor requires to be equipped with manual stepless speed-regulating device (can adopt knob), and the speed of mainshaft is 2 rev/mins～100 rev/mins, and moving speed of table is 0.5 mm/second～12 mm/second and requires no creeping phenomenon.The part two ends adopt the pulling force traction to be installed.
In order to increase the sticking power of piece surface, described method at the piece surface cladding layer also can comprise before steps A:
D, piece surface sandblast: piece surface is adopted jet absorption type or pressure type sandblast, remove the metal oxide and the impurity of piece surface, increase the sticking power on surface.The general pressurized air sandblast of adopting can certainly be adopted water spray sand more.
The concrete equipment of sandblast is as shown in Figure 2: comprise air compressor machine, gas-holder, water-and-oil separator, sand-blasting gun and blasting cabinet successively, wherein:
Air compressor: produce pressurized air, air demand is at 2 cubic metres～3 cubic metres, and supply gas pressure is not less than 0.7MPa;
Gas-holder: connect air compressor, be used for the store compressed air, reduce the air pressure fluctuation, recommend the air demand of gas-storing capacity greater than air compressor half a minute;
Water-and-oil separator: connect gas-holder, condensation and the difunctional separator of filtration generally adopt condensation method to dewater, the filtration method oil removing;
Sand-blasting gun: connect water-and-oil separator, be installed in the blasting cabinet, sand grains is injected into piece surface;
Blasting cabinet: part is arranged in the blasting cabinet, and does corresponding motion, makes sandblast even.
The processing parameter of sandblast is as follows:
Sand grains or abrasive material: brown corundum;
Compressed air pressure: 0.5MPa～0.7MPa;
Sandblast distance: 100mm～300mm;
Sandblast angle: 60 °～75 °;
Sand-blasting gun bore: φ 6mm～φ 15mm;
The processing requirement that is reached after the sandblast:
Surfaceness: Ra4.5 μ m～12.5 μ m;
Sandblast rear surface outward appearance is that ash is dark-coloured, unglazed reflected spot or bright line.
In addition, the main effect that is same as this operation is exactly to remove zone of oxidation, and the piece surface after the sandblast is easy to oxidation, therefore described step D should steps A carry out in preceding 1 hour or completing steps D after be placed on and prevent its oxidation in the vacuum environment.
The composition that all contains oil in machine tool, lubricating fluid and the cooling fluid of cause in mechanical processing process, so, before steps A, also comprise:
E, piece surface oil removing: remove the oil stain on surface, strengthen sticking power.
The piece surface oil removing has two kinds of methods:
1, cleans oil stain and the dirt of removing piece surface by alkaline aqueous solution;
The oil stain that described employing alkaline aqueous solution is removed piece surface and the method for dirt can be washed part or soak with alkaline aqueous solution, and specifically processing parameter is:
Alkaline solution formulation weight per-cent:
Sodium hydroxide 8 ‰～15 ‰, yellow soda ash 5 ‰～10 ‰, tertiary sodium phosphate 5 ‰～10 ‰, sodium laurylsulfonate 0.2 ‰～1 ‰, surplus are water;
The alkaline solution prescription is here recommended to use: sodium hydroxide 12g/l; Yellow soda ash 8g/l; Tertiary sodium phosphate 7g/l; The aqueous solution of sodium laurylsulfonate 0.5g/l.
Solution temperature: 50 ℃～60 ℃;
Soak time: 10 minutes～30 minutes;
2, the method for described employing flame baking can adopt the oxy-acetylene flame baking, is baked to the piece surface oil stain and decomposes;
Concrete processing parameter can be:
Flame temperature: 6000 ℃～12000 ℃;
Workpiece surface temperature: less than 500 ℃.
Storing time: generally need at 5 seconds to 10 minutes.
When being inconvenient to sometimes examine flame temperature and storing time, it is just passable that the oil stain that can rule of thumb judge its piece surface has decomposed over-emitting black exhaust.
Because of generally carrying out the occasion of piece surface cladding coating processing, all are situations that part precision is had relatively high expectations, so before steps A, also comprise:
F, pre-machined part surface: adopt mach mode to remove parts list surface layer metal, meet the requirements of precision, also can remove thicker zone of oxidation or other defective simultaneously.
Can not directly use behind the piece surface cladding coating in some cases, also need to carry out precision work, precision work is behind step C as shown in Figure 3:
Precision work after G, the cladding: adopt grinding, grinding and or the piece surface of honing after to cladding carry out precision work.
Adopt the mode of grinding commonplace in actual applications, lift two examples below:
Example 1: select silicon carbide grinding wheel for use
Select soft durometer silicon carbide grinding wheel in the gross blow hole for use, concrete processing parameter is as follows:
The tissue number: 12 or 13;
Abrasive grain: 46#;
Wedding agent: pottery;
Grinding speed: v=35 meter per second;
Work speed: v
Workpiece, v
WorkpieceSatisfy: v/v
Workpiece=60～150;
Length feed amount: f
L=0.2～0.8Bt; Bt is a grinding wheel width;
Lateral feed: f
c=0.005mm is according to few feeding, the principle of diligent feeding;
Cooling fluid: emulsion.
Example 2, select person's diamond wheel for use
Concrete processing parameter is as follows:
Abrasive grain: corase grind: 60# or 80#;
Half correct grinding: 100#, 120# or 150#;
Correct grinding: 180# or 240#;
Wedding agent: resin;
Diamond concentration: 75%;
Grinding speed: v=35 meter per second; Select grinding wheel factory, Shanghai TRc80#ST5 for use;
Work speed: v
Workpiece, v
Workpiece satisfies: v/v
Workpiece=60～150;
Length feed amount: f
L=0.2～0.8Bt; Bt is a grinding wheel width;
Lateral feed: reciprocating stroke f
c=0.004mm～0.01mm selects 100# or 150# emery wheel;
Wheel face cutting temperature: less than 200 ℃;
Cooling fluid: kerosene or diesel oil.
Certainly, be absolutely necessary in the operation of finishing the check of processing back in field of machining.
The above the specific embodiment of the present invention only is preferable embodiment and the representational embodiment of the present invention; But protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses, and the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (10)
1, a kind of method at the piece surface cladding layer is characterized in that, comprising:
A, making precoated layer: the surface that the coating material preparation evenly is applied to part;
B, drying: the topcoat material preparation is solidified by seasoning or oven dry;
C, cladding coating: with the cladding of coating material preparation in piece surface;
Described steps A comprises:
A1, preparation coating material: soak into self-fluxing alloyed powder with caking agent, and isolate unnecessary caking agent, make coating material;
A2, applying surface coating material: the surface that the coating material of steps A 1 preparation is sprayed at part.
2, the method at the piece surface cladding layer according to claim 1 is characterized in that, in the described steps A 2, the gauge control of coating is at 0.2mm～3mm.
3, the method at the piece surface cladding layer according to claim 1 and 2 is characterized in that, described steps A also comprises:
A3, recovery coating material: below part, be provided with the recovery tank in the coating procedure, the coating material that is painted on the surface is not isolated self-fluxing alloyed powder after washing.
4, the method at the piece surface cladding layer according to claim 1 is characterized in that, the process of isolating unnecessary caking agent in the described steps A 1 comprises:
Adopt the aperture to go out unnecessary caking agent less than the screen filtration of self-fluxing alloyed powder granularity.
5, the method at the piece surface cladding layer according to claim 1 is characterized in that, described step B comprises:
Adopt infrared ray radiation while hot air circulate to dry 200 ℃～300 ℃ of hot air temperatures, drying time 5 seconds～15 minutes.
6, the method at the piece surface cladding layer according to claim 1 is characterized in that, described step C comprises:
The electromagnetic induction cladding coating: the size positions of setting apart from the surface at piece surface is provided with electromagnetic induction coil, adopts electromagnetic induction principle heated components surface, with the surface of coating material cladding in part;
Perhaps,
Adopt laser, plasma, oxy-acetylene flame or vacuum sintering method, with the surface of coating material cladding in part.
7, the method at the piece surface cladding layer according to claim 6 is characterized in that, the main technologic parameters of described electromagnetic induction cladding coating is:
Be of a size of 1 millimeter～5 millimeters apart from the piece surface setting;
Electromagnetic oscillation frequency: 200Hz～250Hz;
Electromagnetic oscillation power: 100KW;
Output heating power: 85KW ± 5KW.
8, the method at the piece surface cladding layer according to claim 1 is characterized in that, also comprises before steps A:
D, piece surface sandblast: piece surface is adopted jet absorption type or pressure type sandblast, remove the metal oxide and the impurity of piece surface, increase the sticking power on surface.
9, the method at the piece surface cladding layer according to claim 8 is characterized in that, described step D should steps A carry out in preceding 1 hour or completing steps D after place vacuum environment to prevent its oxidation described part.
10, according to claim 1 or 8 described methods, it is characterized in that, before steps A, also comprise at the piece surface cladding layer:
E, piece surface oil removing: oil stain and the dirt of removing piece surface by the method for alkaline aqueous solution cleaning or flame baking;
The oil stain of described employing alkaline aqueous solution removal piece surface and the method for dirt are washed part with alkaline aqueous solution or are soaked, and concrete processing parameter is:
Alkaline solution formulation weight per-cent:
Sodium hydroxide 8 ‰～15 ‰, yellow soda ash 5 ‰～10 ‰, tertiary sodium phosphate 5 ‰～10 ‰, sodium laurylsulfonate 0.2 ‰～1 ‰, surplus are water;
Solution temperature: 50 ℃～60 ℃;
Soak time: 10 minutes～30 minutes;
Perhaps,
The method of described employing flame baking adopts the baking of reductibility oxy-acetylene flame, is baked to the piece surface oil stain and decomposes; Concrete processing parameter is:
Flame temperature: 6000 ℃～12000 ℃;
Workpiece surface temperature: less than 500 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100985979A CN100339509C (en) | 2005-09-06 | 2005-09-06 | Part surface coated layer technological method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100985979A CN100339509C (en) | 2005-09-06 | 2005-09-06 | Part surface coated layer technological method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1891860A CN1891860A (en) | 2007-01-10 |
| CN100339509C true CN100339509C (en) | 2007-09-26 |
Family
ID=37597048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100985979A Expired - Fee Related CN100339509C (en) | 2005-09-06 | 2005-09-06 | Part surface coated layer technological method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100339509C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101876075B (en) * | 2010-05-18 | 2011-11-02 | 中国矿业大学 | Preparation method and device thereof of surface structuration composite coating |
| CN106311710A (en) * | 2015-06-19 | 2017-01-11 | 曾领才 | Degreasing agent used for municipal solid waste disposal and degreasing method thereof |
| CN106077618A (en) * | 2016-08-22 | 2016-11-09 | 兰州工业学院 | The nichrome dusty material containing rare earth and application thereof for abrasive wear resistance |
| CN106544669A (en) * | 2016-10-21 | 2017-03-29 | 武汉理工大学 | Three-dimensional point type continuous moving senses cladding method |
| CN107528435B (en) * | 2017-08-30 | 2018-11-30 | 界首永恩机电科技有限公司 | A kind of surface treatment method of washing machine motor shell |
| CN110195205A (en) * | 2019-07-12 | 2019-09-03 | 中国矿业大学徐海学院 | A kind of preparation method of material surface anticorrosion antiwear alloy coat |
| CN113714747A (en) * | 2021-09-18 | 2021-11-30 | 石河子大学 | Induction cladding process flow for preparing surface coating of shaft part |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54137439A (en) * | 1978-04-18 | 1979-10-25 | Minoru Isono | Formation of hardened layer on metal surface |
| CN1006034B (en) * | 1985-05-02 | 1989-12-06 | 松下电器产业株式会社 | Apparatus for chrominance signal processing |
-
2005
- 2005-09-06 CN CNB2005100985979A patent/CN100339509C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54137439A (en) * | 1978-04-18 | 1979-10-25 | Minoru Isono | Formation of hardened layer on metal surface |
| CN1006034B (en) * | 1985-05-02 | 1989-12-06 | 松下电器产业株式会社 | Apparatus for chrominance signal processing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1891860A (en) | 2007-01-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100339509C (en) | Part surface coated layer technological method | |
| CN1826456A (en) | Turbine component, gas turbine engine, method of manufacture turbine component, surface processing method, blade component, metal component and steam turbine engine | |
| EP3222381A2 (en) | Additive manufacturing method and additive manufacturing machine | |
| CN104233162B (en) | Surface repair method of piston rod | |
| CN107400887A (en) | A kind of method that ultrasonic burnishing strengthens laser cladding layer | |
| CN102284786A (en) | Preparation method for compositing high-speed steel wear resistant layer on surface of aluminum alloy | |
| CN1803347A (en) | Tungsten carbide base hard alloy powder metallurgical material and its preparation method | |
| CN1540028A (en) | Thermal spraying powder and method of forming thermal sprayed coating using same | |
| CN1442617A (en) | Method of coating fluorocarbon resin and sliding part and gas compressor using said method | |
| CN104988495A (en) | Induction-cladding sleeve part inner wall remanufacturing method | |
| CN1796336A (en) | Clamp for electron component | |
| CN1541808A (en) | Metal cement grinding wheel | |
| CN109015422A (en) | A kind of resinoid bond abrasive cut-off wheel of high intensity | |
| CN105316618A (en) | Technical method for spraying high-bonding-strength aluminum oxide coating in plasma spraying mode | |
| CN111633382B (en) | Kitchen appliance production equipment and manufacturing method and application thereof | |
| CN1604823A (en) | Articles spray coated with non-melting polymer | |
| CN1053020C (en) | Method for preparing aluminium and aluminium alloy surface coating | |
| CN1826430A (en) | Metal product and manufacture method thereof, metal component joint method and joint structure body | |
| CN1210497C (en) | Pump and hydraulic turbine and manufacture thereof | |
| TWI621737B (en) | A preparation method of electro-thermal alloying for metal surface by mechanical auxiliary | |
| CN1990184A (en) | Abrasive, and abrasive manufacturing method and device | |
| CN103692144B (en) | A kind of method that tungsten carbide particle repairs parts with mixed with resin | |
| CN1308103C (en) | Method for making metal element such as wheel unit and wheel made by said method | |
| CN113042759A (en) | Laser additive manufacturing method of high-entropy alloy | |
| CN208340869U (en) | A kind of shaft production is with can be with mobile crushing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070926 Termination date: 20160906 |