CN105088224A - Device and method for strengthening water pump impeller and prolonging service life of water pump impeller - Google Patents

Device and method for strengthening water pump impeller and prolonging service life of water pump impeller Download PDF

Info

Publication number
CN105088224A
CN105088224A CN201510528492.6A CN201510528492A CN105088224A CN 105088224 A CN105088224 A CN 105088224A CN 201510528492 A CN201510528492 A CN 201510528492A CN 105088224 A CN105088224 A CN 105088224A
Authority
CN
China
Prior art keywords
water pump
pump impeller
powder
laser
cladding
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
Application number
CN201510528492.6A
Other languages
Chinese (zh)
Inventor
任旭东
吴坤
佟艳群
袁寿其
李红
任云鹏
王德顺
左成亚
何浩
周睿
孙建荣
吴教义
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu University
Original Assignee
Jiangsu University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu University filed Critical Jiangsu University
Priority to CN201510528492.6A priority Critical patent/CN105088224A/en
Publication of CN105088224A publication Critical patent/CN105088224A/en
Pending legal-status Critical Current

Links

Abstract

The invention provides a device and a method for strengthening a water pump impeller and prolonging service life of the water pump impeller. The device comprises a laser control device, an impeller clamping and fixing device and a synchronous powder feeding device, wherein the laser control device comprises an industrial control platform which is connected with a laser and a six-DOF (six-degree of freedom) manipulator; the laser is connected with the end part of the six-DOF manipulator, and a focus lamp is fixed on the laser and is located in the center right below the laser; the impeller clamping and fixing device comprises a three-jaw chuck and an electric motor connected with the three-jaw chuck; the water pump impeller is mounted on the three-jaw chuck; the synchronous powder feeding device comprises a powder feeder, a plastic pipe and cladding powder, the powder feeder is filled with the cladding powder, one end of the plastic pipe is connected with the powder feeder, and the other end is connected with a damaged part of the water pump impeller. With the adoption of the device and the method for strengthening the water pump impeller and prolonging the service life of the water pump impeller, various properties of the damaged part of the water pump impeller can be effectively improved, any point of a space curved surface can be positioned, and the problem that the complex space curved surface is difficult to strengthen and repair is solved.

Description

A kind of water pump impeller strengthens the apparatus and method of lengthening the life
Technical field
The invention belongs to water pump impeller technical field, especially relate to a kind of water pump impeller and strengthen the apparatus and method of lengthening the life.
Background technology
Laser melting coating to refer to different adding material modes being placed coated material by cladding matrix surface through laser according to making it to melt with matrix surface thin layer simultaneously, effectively improves the properties of body material.It is made to meet service requirements better.As compared to the modification technology such as built-up welding, thermospray and plasma spraying, laser-welded structure is fine and close, and the performances such as hardness is higher, wear-resisting, anti-corrosion are more excellent, can obtain required performance when cladding layer is thinner simultaneously, thus saves expensive coating material.Laser cladding process easily realizes automatic production, coating steady quality, and in laser cladding process, the thickness of cladding layer can realize continuous adjustment.Laser melting coating has more wide application prospect in Aeronautics and Astronautics and even civil water pump field, has become now the focus of Material Field research and development.The impeller of water pump is the important component in water pump, but water pump impeller is on-stream, and due to cavitation erosion, the impeller surface of the effect water pumps such as wearing and tearing there will be small rut, there will be hole, pears ditch time serious, and the even water pump impeller surface had can be breakdown.
Summary of the invention
There is the deficiency such as pit, hole for water pump impeller surface in prior art, the invention provides a kind of water pump impeller and strengthen the apparatus and method of lengthening the life, effectively improve the properties of water pump impeller damage location, as wear-resisting, corrosion resistance nature etc.; Simultaneously for this complex space curved surfaces of water pump impeller, can the location of curved surface arbitrfary point, implementation space, efficiently solve the strengthening repair of the more difficult realization of water pump impeller.
The present invention realizes above-mentioned technical purpose by following technique means.
Water pump impeller strengthens a device of lengthening the life, and comprises laser control device, impeller clamping stationary installation and synchronous powder feeding system device; Described laser control device comprises industry control platform, six degree of freedom mechanical manipulator, laser apparatus and condensing lens; Described industry control platform connecting laser and six degree of freedom mechanical manipulator; The end connecting laser of described six degree of freedom mechanical manipulator, described condensing lens to be fixed on laser apparatus and to be positioned at center immediately below laser apparatus; The electric motor that described impeller clamping stationary installation comprises thread jaw chuck and is connected with thread jaw chuck; Described thread jaw chuck is equipped with water pump impeller; The laser beam line focus mirror that described laser apparatus sends focuses on the damage location of water pump impeller; Described synchronous powder feeding system device comprises powder feeder, plastic conduit and cladding powder, and cladding powder is housed in described powder feeder, and one end of described plastic conduit connects powder feeder, and the other end connects the damage location of water pump impeller.
Further, described powder feeder is the twin-tub synchronous powder feeder comprising power collecting bucket A and power collecting bucket B.
Further, the good powder of flow behavior is housed in described power collecting bucket A, the poor powder of flow behavior is housed in described power collecting bucket B.
Further, the powder in described power collecting bucket A is metal-powder; Powder in described power collecting bucket B is ceramic powder.
Further, described electric motor is installed on the side of thread jaw chuck.
Water pump impeller strengthens a method of lengthening the life, and comprises the steps:
S1: install and connect industry control platform, six degree of freedom mechanical manipulator, laser apparatus, condensing lens, thread jaw chuck and electric motor;
S2: the damage position of pretreated water pump impeller;
S3: according to the material of the body material determination cladding powder of water pump impeller, the cladding powder after determining is added in twin-tub synchronous powder feeder;
S4: be fixed on by water pump impeller on thread jaw chuck, makes laser apparatus be positioned at the damage location of damage water pump impeller by the hot spot that condensing lens is formed by industrial computer regulating and controlling six degree of freedom mechanical manipulator;
S5: the processing parameter of setting laser device, starts laser melting coating work; Laser apparatus is opened by industrial computer, the laser line focus mirror that laser apparatus sends focuses on the damage location of water pump impeller, the powder feed rate of twin-tub synchronous powder feeder is set simultaneously, cladding powder is delivered to the damage location of water pump impeller by twin-tub synchronous powder feeder by plastic conduit, continuous cladding is until reach required cladding layer thickness;
S6: regulate six degree of freedom mechanical manipulator by industrial computer, hot spot is adjusted to all the other positions damaged of water pump impeller by laser apparatus and condensing lens, regulated the cladding work of all the other damage positions of water pump impeller space simultaneously by the rotation of motor control thread jaw chuck, reach the thickness of required cladding layer;
S7: the whole surface of cleaning water pump impeller, the cladding and hardening completing the damage location of whole water pump impeller is lengthened the life.
Further, be treated to described in step S2 with acetone, rosin cleaning damage location.
Further, processing parameter described in step S5 is: the spot diameter 10mm × 2mm of laser beam, the use power 1500W ~ 2000W of laser beam, and sweep velocity is 5 ~ 10mm/s, and the amount of lap of adjacent treat surface is 10% ~ 30%.
Further, powder feed rate described in step S5 is 5 ~ 12g/min.
Further, the thickness >=0.5mm of cladding layer described in step S5 and step S6.
Beneficial effect of the present invention:
A kind of water pump impeller of the present invention strengthens the device of lengthening the life, by being fitted to each other of industry control platform, six degree of freedom mechanical manipulator, laser apparatus, condensing lens and thread jaw chuck, the location of water pump impeller curved space any point can be realized, thus solve the difficult problem being difficult to strengthen repair of this complex space curved surfaces of water pump impeller; Laser melting coating is carried out by the cladding powder in powder feeder is delivered to impeller damage location, effectively repair the hole and pears ditch etc. that water pump impeller surface produces, so not only extend the working life of water pump impeller, also significantly improve wear-resisting, the corrosion resistance nature of water pump impeller simultaneously; Powder feeder is set to twin-tub synchronous powder feeder, in two buckets, different cladding powder is housed respectively, different powder can be selected according to different conditions, efficient and convenient; The method process is easy, easy to operate, and adaptability is stronger.
Accompanying drawing explanation
Fig. 1 is the structure iron that water pump impeller of the present invention strengthens the device of lengthening the life.
Fig. 2 is the structural representation at water pump impeller of the present invention loss position.
Description of reference numerals is as follows:
1-industrial computer, 2-six degree of freedom mechanical manipulator, 3-laser apparatus, 4-thread jaw chuck, 5-twin-tub synchronous powder feeder, 6-plastic conduit, 7-water pump impeller, 8-cladding powder, 9-electric motor, 10-condensing lens, 11-damage location.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the present invention is further illustrated, but protection scope of the present invention is not limited to this.
As depicted in figs. 1 and 2, a kind of water pump impeller strengthens the device of lengthening the life, and comprises laser control device, impeller clamping stationary installation and synchronous powder feeding system device; Described laser control device comprises industry control platform 1, six degree of freedom mechanical manipulator 2, laser apparatus 3 and condensing lens 10; Described industry control platform 1 connecting laser 3 and six degree of freedom mechanical manipulator 2, can control the locus of six degree of freedom mechanical manipulator 2 and opening and closedown of laser apparatus 3 by industry control platform 1; The end connecting laser 3 of described six degree of freedom mechanical manipulator 2, described condensing lens 10 to be fixed on laser apparatus 3 and to be positioned at center immediately below laser apparatus 3; Described impeller clamping stationary installation comprises thread jaw chuck 4 and electric motor 9, and electric motor 9 is positioned at the side of thread jaw chuck 4, realizes thread jaw chuck 4 rotation vertically and stopping.
Described thread jaw chuck 4 is equipped with water pump impeller 7, and the axle root of water pump impeller 7 tightly clamping, on thread jaw chuck 4, prevents water pump impeller 7 from dropping in laser cladding process.The laser beam line focus mirror 10 that described laser apparatus 3 sends focuses on the damage location 11 of water pump impeller 7; Described synchronous powder feeding system device comprises twin-tub synchronous powder feeder 5, plastic conduit 6 and cladding powder 8, in described twin-tub synchronous powder feeder 5, cladding powder 8 is housed, one end of described plastic conduit 6 connects powder feeder, the other end connects the damage location 11 of water pump impeller 7, cladding powder 8 transports to the damage location 11 of water pump impeller 7 by plastic conduit 6, and simultaneously twin-tub synchronous powder feeder 5 can the powder sending quantity of setting unit time; Described twin-tub synchronous powder feeder 5 comprises power collecting bucket A and power collecting bucket B, the good powder of flow behavior is housed, as metal-powder in described power collecting bucket A; The poor powder of flow behavior is housed, as ceramic powder in described power collecting bucket B.
Utilize this water pump impeller to strengthen the life-prolonging method of device for prolonging, comprise the steps:
S1: install and connect industry control platform 1, six degree of freedom mechanical manipulator 2, laser apparatus 3, condensing lens 10, thread jaw chuck 4 and electric motor 9;
S2: with the degreasing such as acetone, rosin, eliminate rust, descale to damage position 11 pre-treatment of water pump impeller 7;
S3: the body material due to water pump impeller 7 is chosen material is 2Gr13, determines that cladding powder 8 is the powdered alloy of Co-Cr-Ni, adds in the power collecting bucket A of twin-tub synchronous powder feeder 5 by the cladding powder 8 after determining;
S4: be fixed on by water pump impeller 7 on thread jaw chuck 4, makes laser apparatus 3 be positioned at the damage location 11 of damage water pump impeller by the hot spot that condensing lens 10 is formed by industrial computer 1 regulating and controlling six degree of freedom mechanical manipulator 2;
S5: the processing parameter of setting laser device 3 is as follows: the spot diameter 10mm × 2mm of laser beam, the use power 1500W ~ 2000W of laser beam, sweep velocity is 5 ~ 10mm/s, and the amount of lap of adjacent treat surface is after 10% ~ 30%; Start laser melting coating work; Laser apparatus 3 is opened by industrial computer 1, the laser line focus mirror 10 that laser apparatus 3 sends focuses on the damage location 11 of water pump impeller 7, the powder feed rate simultaneously arranging twin-tub synchronous powder feeder 5 is 5 ~ 12g/min, cladding powder 8 is delivered to the damage location 11 of water pump impeller 7 by twin-tub synchronous powder feeder 5 by plastic conduit 6, continuous cladding is until reach required cladding layer thickness; Described cladding layer thickness >=0.5mm.
S6: regulate six degree of freedom mechanical manipulator 2 by industrial computer 1, hot spot is adjusted to all the other positions damaged of water pump impeller 7 by laser apparatus 3 and condensing lens 10, the rotation simultaneously controlling thread jaw chuck 4 by electric motor 9 has regulated the cladding work of all the other damage positions of water pump impeller 7 space, reaches the thickness of required cladding layer; Described cladding layer thickness >=0.5mm.
S7: the whole surface of cleaning water pump impeller 7, the cladding and hardening completing the damage location 11 of whole water pump impeller 7 is lengthened the life.
Described embodiment is preferred embodiment of the present invention; but the present invention is not limited to above-mentioned embodiment; when not deviating from flesh and blood of the present invention, any apparent improvement that those skilled in the art can make, replacement or modification all belong to protection scope of the present invention.

Claims (10)

1. water pump impeller strengthens a device of lengthening the life, and it is characterized in that, comprises laser control device, impeller clamping stationary installation and synchronous powder feeding system device; Described laser control device comprises industry control platform (1), six degree of freedom mechanical manipulator (2), laser apparatus (3) and condensing lens (10); Described industry control platform (1) connecting laser (3) and six degree of freedom mechanical manipulator (2); The end connecting laser (3) of described six degree of freedom mechanical manipulator (2), described condensing lens (10) is fixed on laser apparatus (3) and goes up and be positioned at center immediately below laser apparatus (3); The electric motor (9) that described impeller clamping stationary installation comprises thread jaw chuck (4) and is connected with thread jaw chuck (4); Water pump impeller (7) described thread jaw chuck (4) is equipped with; The laser beam line focus mirror (10) that described laser apparatus (3) sends focuses on the damage location (11) of water pump impeller (7); Described synchronous powder feeding system device comprises powder feeder, plastic conduit (6) and cladding powder (8), cladding powder (8) is housed in described powder feeder, one end of described plastic conduit (6) connects powder feeder, and the other end connects the damage location (11) of water pump impeller (7).
2. a kind of water pump impeller according to claim 1 strengthens the device of lengthening the life, and it is characterized in that, described powder feeder is the twin-tub synchronous powder feeder (5) comprising power collecting bucket A and power collecting bucket B.
3. a kind of water pump impeller according to claim 2 strengthens the device of lengthening the life, and it is characterized in that, the good powder of flow behavior is housed in described power collecting bucket A, and the poor powder of flow behavior is housed in described power collecting bucket B.
4. a kind of water pump impeller according to claim 3 strengthens the device of lengthening the life, and it is characterized in that, the powder in described power collecting bucket A is metal-powder; Powder in described power collecting bucket B is ceramic powder.
5. a kind of water pump impeller according to claim 1 or 4 strengthens the device of lengthening the life, and it is characterized in that, described electric motor (9) is installed on the side of thread jaw chuck (4).
6. water pump impeller strengthens a method of lengthening the life, and it is characterized in that, comprises the steps:
S1: install and connect industry control platform (1), six degree of freedom mechanical manipulator (2), laser apparatus (3), condensing lens (10), thread jaw chuck (4) and electric motor (9);
S2: the damage position (11) of pretreated water pump impeller (7);
S3: according to the material of body material determination cladding powder (8) of water pump impeller (7), adds in twin-tub synchronous powder feeder (5) by the cladding powder (8) after determining;
S4: be fixed on by water pump impeller (7) on thread jaw chuck (4), makes laser apparatus (3) be positioned at the damage location (11) of damage water pump impeller by the hot spot that condensing lens (10) is formed by industrial computer (1) regulating and controlling six degree of freedom mechanical manipulator (2);
S5: the processing parameter of setting laser device (3), starts laser melting coating work; Laser apparatus (3) is opened by industrial computer (1), the laser line focus mirror (10) that laser apparatus (3) sends focuses on the damage location (11) of water pump impeller (7), the powder feed rate of twin-tub synchronous powder feeder (5) is set simultaneously, cladding powder (8) is delivered to the damage location (11) of water pump impeller (7) by twin-tub synchronous powder feeder (5) by plastic conduit (6), continuous cladding is until reach required cladding layer thickness;
S6: regulate six degree of freedom mechanical manipulator (2) by industrial computer (1), hot spot is adjusted to all the other positions damaged of water pump impeller (7) by laser apparatus (3) and condensing lens (10), regulated the cladding work of all the other damage positions of water pump impeller (7) space simultaneously by the rotation of electric motor (9) control thread jaw chuck (4), reach the thickness of required cladding layer;
S7: the whole surface of cleaning water pump impeller (7), the cladding and hardening completing the damage location (11) of whole water pump impeller (7) is lengthened the life.
7. a kind of water pump impeller according to claim 6 strengthens the method for lengthening the life, and it is characterized in that, is treated to acetone, rosin cleaning damage location (11) described in step S2.
8. a kind of water pump impeller according to claim 6 strengthens the method for lengthening the life, it is characterized in that, processing parameter described in step S5 is: the spot diameter 10mm × 2mm of laser beam, the use power 1500W ~ 2000W of laser beam, sweep velocity is 5 ~ 10mm/s, and the amount of lap of adjacent treat surface is 10% ~ 30%.
9. a kind of water pump impeller according to claim 6 strengthens the method for lengthening the life, and it is characterized in that, powder feed rate described in step S5 is 5 ~ 12g/min.
10. a kind of water pump impeller according to claim 6 strengthens the method for lengthening the life, and it is characterized in that, the thickness >=0.5mm of cladding layer described in step S5 and step S6.
CN201510528492.6A 2015-08-25 2015-08-25 Device and method for strengthening water pump impeller and prolonging service life of water pump impeller Pending CN105088224A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510528492.6A CN105088224A (en) 2015-08-25 2015-08-25 Device and method for strengthening water pump impeller and prolonging service life of water pump impeller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510528492.6A CN105088224A (en) 2015-08-25 2015-08-25 Device and method for strengthening water pump impeller and prolonging service life of water pump impeller

Publications (1)

Publication Number Publication Date
CN105088224A true CN105088224A (en) 2015-11-25

Family

ID=54569525

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510528492.6A Pending CN105088224A (en) 2015-08-25 2015-08-25 Device and method for strengthening water pump impeller and prolonging service life of water pump impeller

Country Status (1)

Country Link
CN (1) CN105088224A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108672961A (en) * 2018-05-17 2018-10-19 江苏理工学院 A kind of multi-functional frock clamp of blade class irregular surface thin-wall part laser remanufacturing
CN109267065A (en) * 2018-11-26 2019-01-25 江苏科技大学 A kind of boat adjustable propeller injury repair device and its restorative procedure
CN109913867A (en) * 2019-03-15 2019-06-21 马德翼 A kind of shield machine cutter head reinforcing process equipment based on shock resistance type
CN111687535A (en) * 2020-05-13 2020-09-22 山东华东风机有限公司 Laser cladding device for wear-resistant layer of impeller of rotary feeder
CN112080738A (en) * 2020-07-16 2020-12-15 宁夏莫克仪表科技有限公司 Processing method and processing device for laser cladding of wear-resistant thermocouple sleeve
CN113843221A (en) * 2021-08-27 2021-12-28 大连透平机械技术发展有限公司 Method for removing high-temperature oxidation color of centrifugal compressor impeller

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090095214A1 (en) * 2007-10-10 2009-04-16 Ronald Peter Whitfield Laser cladding device with an improved nozzle
CN102021565A (en) * 2009-09-23 2011-04-20 沈阳大陆激光技术有限公司 method for repairing supercharger nozzle ring of internal-combustion engine
CN102877061A (en) * 2012-10-16 2013-01-16 江苏大学 Method and device for remanufacturing stainless steel pump parts through laser cladding
CN103668187A (en) * 2013-12-23 2014-03-26 上海彩石激光科技有限公司 Automatic laser repairing device of hard alloy well logging tool during drilling and repairing method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090095214A1 (en) * 2007-10-10 2009-04-16 Ronald Peter Whitfield Laser cladding device with an improved nozzle
CN102021565A (en) * 2009-09-23 2011-04-20 沈阳大陆激光技术有限公司 method for repairing supercharger nozzle ring of internal-combustion engine
CN102877061A (en) * 2012-10-16 2013-01-16 江苏大学 Method and device for remanufacturing stainless steel pump parts through laser cladding
CN103668187A (en) * 2013-12-23 2014-03-26 上海彩石激光科技有限公司 Automatic laser repairing device of hard alloy well logging tool during drilling and repairing method thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108672961A (en) * 2018-05-17 2018-10-19 江苏理工学院 A kind of multi-functional frock clamp of blade class irregular surface thin-wall part laser remanufacturing
CN109267065A (en) * 2018-11-26 2019-01-25 江苏科技大学 A kind of boat adjustable propeller injury repair device and its restorative procedure
CN109913867A (en) * 2019-03-15 2019-06-21 马德翼 A kind of shield machine cutter head reinforcing process equipment based on shock resistance type
CN109913867B (en) * 2019-03-15 2021-04-16 郑洪辉 Shield constructs quick-witted tool bit and strengthens processing equipment based on type of shocking resistance
CN111687535A (en) * 2020-05-13 2020-09-22 山东华东风机有限公司 Laser cladding device for wear-resistant layer of impeller of rotary feeder
CN112080738A (en) * 2020-07-16 2020-12-15 宁夏莫克仪表科技有限公司 Processing method and processing device for laser cladding of wear-resistant thermocouple sleeve
CN113843221A (en) * 2021-08-27 2021-12-28 大连透平机械技术发展有限公司 Method for removing high-temperature oxidation color of centrifugal compressor impeller

Similar Documents

Publication Publication Date Title
CN105088224A (en) Device and method for strengthening water pump impeller and prolonging service life of water pump impeller
CN108559996B (en) A kind of hydraulic support movable post outer surface laser melting coating restorative procedure
CN104233162B (en) Surface repair method of piston rod
EP3209811B1 (en) Method and apparatus for cladding a surface of an article
CN205635772U (en) Laser cladding moving platform
CN111676477B (en) Ultrahigh-speed laser-induction composite cladding method and device
CN102383126A (en) Method with functions of preheating and postheating for forming crack-free coating with high efficiency by three-light-beam laser-cladding technique
CN105648296B (en) A kind of high temperature resistance tungsten carbide-base metal-ceramic composite powder end, coating and its preparation process containing Re
MX2007016229A (en) Laser cladding on low heat resistant substrates.
CN102019531B (en) Portable ultrasonic auxiliary spark sedimentation repairing and polishing integrated device and process thereof
CN103993308A (en) Method for re-manufacturing roller shaft part through laser cladding
CN108165978A (en) A kind of method that nuclear power sea water pump shaft is repaired using ultrahigh speed laser melting and coating technique
CN102284786A (en) Preparation method for compositing high-speed steel wear resistant layer on surface of aluminum alloy
CN102787288A (en) Hot spraying process of metal ceramic coating on surface of valve rod
CN101284341A (en) Integrated device of ultrasound auxiliary electric spark deposition and repair and ultrasound polish and method thereof
CN109262111B (en) Twin-wire surfacing device and method
CN207735775U (en) A kind of device of the laser-arc hybrid welding in industry of coating steel pipe
CN105598655A (en) Method for strengthening surface of metal turbine runner blade through combination of electric spark deposition and welding
CN107620029A (en) A kind of plasma spray welding method of WC particle and iron(-)base powder
CN107299310A (en) A kind of preparation method for strengthening water pump vane Ceramic Coating Prepared By Plasma Spraying On The Surface
CN105586562A (en) Process for remanufacturing piston rod of concrete pump truck
CN111005015A (en) Method for preparing gradient coating by steel surface cold spraying/laser gas nitriding compounding
CN209144234U (en) Plasma hybrid laser paint finishing
CN110653454A (en) 5xxx is aluminum alloy electric arc vibration material disk surface treatment device
CN104032256A (en) Method for preparing wear-resisting corrosion-resisting nickel-based alloy coating

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20151125

RJ01 Rejection of invention patent application after publication