CN115418601A - High-frequency induction heating heavy fusible link and method for preparing anti-explosion coating of anti-explosion forklift fork - Google Patents

High-frequency induction heating heavy fusible link and method for preparing anti-explosion coating of anti-explosion forklift fork Download PDF

Info

Publication number
CN115418601A
CN115418601A CN202211031007.0A CN202211031007A CN115418601A CN 115418601 A CN115418601 A CN 115418601A CN 202211031007 A CN202211031007 A CN 202211031007A CN 115418601 A CN115418601 A CN 115418601A
Authority
CN
China
Prior art keywords
explosion
induction heating
fork
proof
forklift
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
CN202211031007.0A
Other languages
Chinese (zh)
Inventor
王小燕
丁树庆
张军
冯月贵
米涌
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.)
NANJING SPECIAL EQUIPMENT INSPECTION INSTITUTE
Original Assignee
NANJING SPECIAL EQUIPMENT INSPECTION INSTITUTE
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 NANJING SPECIAL EQUIPMENT INSPECTION INSTITUTE filed Critical NANJING SPECIAL EQUIPMENT INSPECTION INSTITUTE
Priority to CN202211031007.0A priority Critical patent/CN115418601A/en
Publication of CN115418601A publication Critical patent/CN115418601A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C4/00Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/134Plasma spraying
    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C4/00Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/18After-treatment
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

Abstract

The invention discloses a high-frequency induction heating remelting line and a method for preparing an explosion-proof coating of an explosion-proof forklift fork, wherein the high-frequency induction heating remelting line comprises a conveying mesh belt, a plasma spraying device and an induction heating remelting device which are distributed along the conveying mesh belt, a control module, a 3D scanning image recognition device and an adjustable air cooling device which are distributed along the conveying mesh belt, and the 3D scanning image recognition device, the plasma spraying device, the induction heating remelting device and the adjustable air cooling device are sequentially distributed along the conveying mesh belt; the 3D scanning image recognition device is connected with the input end of the control module, and the plasma spraying device is connected with the output end of the control module. The preparation method can accurately prepare the explosion-proof coating of the pallet fork of the explosion-proof forklift with the preset thickness, and can quickly repair the coating after the coating is worn.

Description

High-frequency induction heating heavy fusible link and method for preparing anti-explosion coating of anti-explosion forklift fork
Technical Field
The invention relates to a high-frequency induction heating heavy melting wire and a method for preparing an anti-explosion coating of an anti-explosion forklift fork.
Background
Under normal operating conditions, the parts of the explosion-proof industrial vehicle which can rub and collide with the outside cannot be iron, and the parts are coated by a material which does not generate mechanical sparks during rubbing and collision. For example, copper-zinc alloys, copper-beryllium alloys, stainless steel, etc. may be used to prevent mechanical sparking, and therefore brass or stainless steel may be used to coat the forks of a forklift.
The process that movable parts such as the preposed fork of the explosion-proof forklift are wrapped by copper plates or stainless steel materials is characterized in that a copper sleeve or a stainless steel sleeve made of the copper plates or the stainless steel plates wraps the fork, but the process has the following problems: the repair is not easy after damage or abrasion; a certain gap is formed between the wrapped pallet and the main body fork, so that internal abrasion or falling-off is easily caused after long-time work; the copper plate or the stainless steel plate sleeve is complex in manufacturing process and high in cost. At present, the technology of preparing the explosion-proof coating by adopting a plasma spraying method and an induction heating remelting method is available, but the thickness of the coating cannot be accurately controlled, and the thickness of the coating cannot be adjusted according to the difference of the abrasion degree of the coating.
Disclosure of Invention
In order to solve the problems, the invention provides a high-frequency induction heating heavy fusible link and a method for preparing an anti-explosion coating of an anti-explosion forklift fork.
The high-frequency induction heating heavy fusible link comprises a conveying mesh belt, a plasma spraying device and an induction heating remelting device which are distributed along the conveying mesh belt, a control module, a 3D scanning image recognition device and an adjustable air cooling device which are distributed along the conveying mesh belt, wherein the 3D scanning image recognition device, the plasma spraying device, the induction heating remelting device and the adjustable air cooling device are sequentially distributed along the conveying mesh belt; the 3D scanning image recognition device is connected with the input end of the control module, and the plasma spraying device is connected with the output end of the control module.
The control module adopts a chip with the model number of XCZU4EV-1SFVC 784I.
The invention also provides a method for preparing the anti-explosion coating of the pallet fork of the anti-explosion forklift, which comprises the following steps:
1) Carrying out sand blasting and roughening treatment on the outer surface of the pallet fork of the explosion-proof forklift;
2) Clamping the anti-explosion forklift fork on the conveying mesh belt by using the high-frequency induction heating heavy fusible line, and starting the conveying mesh belt to convey the anti-explosion forklift fork;
3) The 3D scanning image recognition device carries out three-dimensional scanning surveying and mapping on the conveyed explosion-proof forklift fork, records model parameter data and sends a data signal to the control module;
4) The control module sends a control signal to the plasma spraying device after receiving the data signal, and controls the plasma spraying device to carry out plasma spraying on the surface of the fork of the explosion-proof forklift;
5) Conveying the explosion-proof forklift pallet fork coated with the nano coating to an induction heating remelting device through a conveying mesh belt, and carrying out induction heating melting on the nano coating through the induction heating remelting device;
6) Carrying out air cooling treatment on the explosion-proof forklift fork subjected to induction heating by an adjustable air cooling device to accelerate cooling;
7) Repeating the steps 2) to 6) for n times (n is more than or equal to 0) to obtain the compound.
In the step 1), the sand blasting coarsening treatment is performed by using an automatic sand blasting machine.
In the step 4), during plasma spraying, the plasma gas adopts argon (Ar) as the main gas and hydrogen (H) 2 ) As auxiliary gas, the ratio of argon flow to hydrogen flow is 2 -1 The spraying angle is 90 degrees, and the thickness of a sprayed layer is more than 3 mm.
The invention also provides an explosion-proof coating of the pallet fork of the explosion-proof forklift, which is prepared by using the method for preparing the explosion-proof coating of the pallet fork of the explosion-proof forklift.
Has the advantages that: according to the invention, the explosion-proof coating with a preset thickness can be accurately formed on the surface of the pallet fork by adopting the high-frequency induction heating heavy fusible link; the thickness of the anti-explosion coating can be customized according to the field requirements (for example, the upper and lower surfaces of the pallet fork and the easily worn parts of the pallet fork head can be correspondingly sprayed with thick points, the other parts which are not easily contacted can be sprayed with thin points, the customized data is input into the control module, and the control module controls the spraying thickness); the invention can quickly repair the pallet fork after the pallet fork is worn and abraded, and has low repair cost.
Drawings
FIG. 1 is a schematic perspective view of a high-frequency induction heating fusible link according to the present invention;
FIG. 2 is a schematic plan view of a high frequency induction heating fusible link according to the present invention;
in the figure, 1, a conveying mesh belt; 2. 3D scanning image recognition device; 3. a plasma spraying device; 4. an induction heating remelting device; 5. an air cooling device can be adjusted.
Detailed Description
The technical solution of the present invention is described in detail by the following examples, but the scope of the present invention is not limited to the examples.
A high-frequency induction heating remelting line comprises a conveying mesh belt 1 (made of SUS314 and resistant to high temperature of over 1200 ℃), plasma spraying devices 3 and induction heating remelting devices 4 which are distributed along the conveying mesh belt 1, a control module (not shown) adopting a chip with the model of XCZU4EV-1SFVC784I, 3D scanning image recognition devices 2 ((automatic three-dimensional online detection system, hualang three-dimensional)) and adjustable air cooling devices 5 (adjustable air cooling, shandong Zhongke energy) which are distributed along the conveying mesh belt 1 in sequence, wherein the 3D scanning image recognition devices 2, the plasma spraying devices 3, the induction heating remelting devices 4 and the adjustable air cooling devices 5 are formed in a vortex mode and are sequentially distributed along the conveying mesh belt 1; the 3D scanning image recognition device 2 is connected with the input end of the control module, and the plasma spraying device 3 is connected with the output end of the control module. The plasma spraying apparatus 3 and the induction heating remelting apparatus 4 can be used according to the prior art.
A method for preparing an anti-explosion coating of an anti-explosion forklift pallet fork comprises the following steps.
1) And (3) carrying out sand blasting and coarsening treatment on the outer surface of the fork of the explosion-proof forklift by adopting an automatic roller bed type sand blasting machine (Changzhou Su polymer mechanical equipment Co., ltd.).
2) The high-frequency induction heating heavy fuse wire is used for clamping the fork of the explosion-proof forklift on the conveying mesh belt 1, and the conveying mesh belt 1 is started to convey the fork of the explosion-proof forklift.
3) The 3D scanning image recognition device 2 carries out three-dimensional scanning mapping on the conveyed explosion-proof forklift pallet fork, records model parameter data and sends a data signal to the control module; the model parameter data is convenient for calculating the subsequent spraying powder amount and comparing the model values in the subsequent repairing process (areas which are easy to wear and areas which are difficult to wear can be distinguished).
4) And the control module sends a control signal to the plasma spraying device 3 after receiving the data signal, and controls the plasma spraying device 3 to perform plasma spraying of the nano coating on the surface of the fork of the explosion-proof forklift.
In the plasma spraying, the plasma gas uses argon (Ar) as a main gas and hydrogen (H) gas 2 ) As auxiliary gas, the ratio of argon flow to hydrogen flow is 2 -1 The spraying angle is 90 degrees, and the thickness of a sprayed layer is more than 3 mm.
5) The conveying mesh belt 1 conveys the explosion-proof forklift fork coated with the nano coating to an induction heating remelting device 4, and the induction heating remelting device 4 carries out induction heating melting on the nano coating; the heating temperature reaches over 1000 ℃, the defects of air holes and the like are eliminated, and the tissue nonuniformity is improved.
6) The explosion-proof forklift fork after induction heating is subjected to air cooling treatment by the adjustable air cooling device 5 to accelerate cooling, crystal grains can be further refined, the hardness is improved, and the wear resistance of a coating is enhanced.
7) And (3) repeating the steps 2) to 6) according to requirements to obtain the anti-explosion coating of the fork of the anti-explosion forklift.
In practical use, when the step 2) is repeated, the pallet fork is not required to be detached and clamped on the conveying mesh belt 1 on the high-frequency induction heating fusible link again, and the conveying mesh belt 1 is only required to be conveyed to the 3D scanning image recognition device 2 reversely. When the explosion-proof coating is worn, plasma spraying and induction heating remelting can be conveniently carried out again for repairing.
The above-mentioned techniques not specifically mentioned are referred to the prior art.
As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited to the invention itself. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (6)

1. A high-frequency induction heating heavy fusible link comprises a conveying mesh belt, a plasma spraying device and an induction heating remelting device, and is characterized by further comprising a control module, a 3D scanning image recognition device and an adjustable air cooling device, wherein the 3D scanning image recognition device, the plasma spraying device, the induction heating remelting device and the adjustable air cooling device are sequentially distributed along the conveying mesh belt; the 3D scanning image recognition device is connected with the input end of the control module, and the plasma spraying device is connected with the output end of the control module.
2. The high-frequency induction heating fusible link as claimed in claim 1, wherein the control module is a chip of type XCZU4EV-1SFVC 784I.
3. A method for preparing an explosion-proof coating of an explosion-proof forklift fork is characterized by comprising the following steps:
1) Carrying out sand blasting and roughening treatment on the outer surface of the pallet fork of the explosion-proof forklift;
2) Clamping the anti-explosion forklift fork on the conveying mesh belt by using the high-frequency induction heating fusible link as claimed in claim 1 or 2, and starting the conveying mesh belt to convey the anti-explosion forklift fork;
3) The 3D scanning image recognition device carries out three-dimensional scanning and mapping on the conveyed goods fork of the explosion-proof forklift, records model parameter data and sends a data signal to the control module;
4) The control module sends a control signal to the plasma spraying device after receiving the data signal, and controls the plasma spraying device to carry out plasma spraying on the surface of the fork of the explosion-proof forklift;
5) Conveying the explosion-proof forklift fork coated with the nano coating to an induction heating remelting device through a conveying mesh belt, and carrying out induction heating melting on the nano coating through the induction heating remelting device;
6) Carrying out air cooling treatment on the explosion-proof forklift fork subjected to induction heating by an adjustable air cooling device to accelerate cooling;
7) Repeating the steps 2) to 6) for n times (n is more than or equal to 0), and obtaining the product.
4. The method for preparing the explosion-proof coating of the fork of the explosion-proof forklift as claimed in claim 3, wherein in the step 1), the sand blasting coarsening treatment is performed by using an automatic sand blasting machine.
5. The method for preparing the explosion-proof coating of the fork of the explosion-proof forklift as claimed in claim 3, wherein in the step 4), during the plasma spraying, argon gas is adopted as a main gas and hydrogen gas is adopted as an auxiliary gas, the ratio of the flow rate of the argon gas to the flow rate of the hydrogen gas is 2 -1 The spraying angle is 90 degrees, and the thickness of a sprayed layer is more than 3 mm.
6. An explosion-proof coating for the fork of an explosion-proof forklift, which is obtained by using the method for preparing the explosion-proof coating for the fork of the explosion-proof forklift as claimed in any one of claims 3 to 5.
CN202211031007.0A 2022-08-26 2022-08-26 High-frequency induction heating heavy fusible link and method for preparing anti-explosion coating of anti-explosion forklift fork Pending CN115418601A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211031007.0A CN115418601A (en) 2022-08-26 2022-08-26 High-frequency induction heating heavy fusible link and method for preparing anti-explosion coating of anti-explosion forklift fork

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211031007.0A CN115418601A (en) 2022-08-26 2022-08-26 High-frequency induction heating heavy fusible link and method for preparing anti-explosion coating of anti-explosion forklift fork

Publications (1)

Publication Number Publication Date
CN115418601A true CN115418601A (en) 2022-12-02

Family

ID=84199827

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211031007.0A Pending CN115418601A (en) 2022-08-26 2022-08-26 High-frequency induction heating heavy fusible link and method for preparing anti-explosion coating of anti-explosion forklift fork

Country Status (1)

Country Link
CN (1) CN115418601A (en)

Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0412510A1 (en) * 1989-08-10 1991-02-13 Linde Aktiengesellschaft Process and apparatus for the automatic melting of thermally sprayed surfaces
JPH11209865A (en) * 1998-01-21 1999-08-03 Dai Ichi High Frequency Co Ltd Formation of metal coating layer
CN101100745A (en) * 2007-06-18 2008-01-09 南京航空航天大学 Nano ceramic coat processing method based on substrate thermostatic control and thermostatic control system
CN101186999A (en) * 2007-12-07 2008-05-28 华北电力大学 Method for preparing ceramic-metal composite material cladding layer
CN201183816Y (en) * 2008-04-15 2009-01-21 山东金圣隆机械有限公司 Automatic control device of spray painting part remelting
CN101586237A (en) * 2008-05-23 2009-11-25 安东石油技术(集团)有限公司 Hot spray processing technique for alloy coating of AOF bidirectional protecting oil pump plunger
CN202155653U (en) * 2011-06-27 2012-03-07 徐州工程学院 Supporting wheel repair device based on combined machining of plasma spraying and laser remelting
CN203096155U (en) * 2013-01-31 2013-07-31 杭州五源科技实业有限公司 Plasma and thermal-spraying composite repair device
CN203091979U (en) * 2013-01-24 2013-07-31 上海开维喜阀门集团有限公司 Integrated control spray welding device of metal sealing ball valve ball body
US20140302247A1 (en) * 2011-11-02 2014-10-09 Tocalo Co., Ltd. Method of forming densified layer in spray coating, and spray coating covering member
CN106868443A (en) * 2017-02-24 2017-06-20 中国人民解放军装甲兵工程学院 A kind of Supersonic Plasma Spraying technique applies layer optimizing method
CN107937906A (en) * 2017-11-27 2018-04-20 常州大学 A kind of method that laser melting coating of the online powder feeding of argon gas prepares Cr Ni coatings
CN109504964A (en) * 2018-10-12 2019-03-22 翟长生 A kind of bearing ring complex intensifying intelligence production line
CN110983236A (en) * 2019-12-31 2020-04-10 北京金业隆诚科技有限公司 Remelting method for boiler membrane wall anticorrosive coating in vacuum furnace
CN111455306A (en) * 2020-05-07 2020-07-28 超达阀门集团股份有限公司 Manufacturing process of nickel-based tungsten carbide wear-resistant coating of metal hard sealing ball valve
CN111495635A (en) * 2020-04-23 2020-08-07 佛山科学技术学院 Self-adaptive spraying method
CN111621782A (en) * 2020-06-29 2020-09-04 江苏科环新材料有限公司 Method for preparing protective coating by high-frequency induction heating and then powder feeding reciprocating forming-remelting
CN111979542A (en) * 2020-08-06 2020-11-24 江苏科环新材料有限公司 High-frequency remelting coating preparation device for boiler pipe of garbage power station under composite motion condition

Patent Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0412510A1 (en) * 1989-08-10 1991-02-13 Linde Aktiengesellschaft Process and apparatus for the automatic melting of thermally sprayed surfaces
JPH11209865A (en) * 1998-01-21 1999-08-03 Dai Ichi High Frequency Co Ltd Formation of metal coating layer
CN101100745A (en) * 2007-06-18 2008-01-09 南京航空航天大学 Nano ceramic coat processing method based on substrate thermostatic control and thermostatic control system
CN101186999A (en) * 2007-12-07 2008-05-28 华北电力大学 Method for preparing ceramic-metal composite material cladding layer
CN201183816Y (en) * 2008-04-15 2009-01-21 山东金圣隆机械有限公司 Automatic control device of spray painting part remelting
CN101586237A (en) * 2008-05-23 2009-11-25 安东石油技术(集团)有限公司 Hot spray processing technique for alloy coating of AOF bidirectional protecting oil pump plunger
CN202155653U (en) * 2011-06-27 2012-03-07 徐州工程学院 Supporting wheel repair device based on combined machining of plasma spraying and laser remelting
US20140302247A1 (en) * 2011-11-02 2014-10-09 Tocalo Co., Ltd. Method of forming densified layer in spray coating, and spray coating covering member
CN203091979U (en) * 2013-01-24 2013-07-31 上海开维喜阀门集团有限公司 Integrated control spray welding device of metal sealing ball valve ball body
CN203096155U (en) * 2013-01-31 2013-07-31 杭州五源科技实业有限公司 Plasma and thermal-spraying composite repair device
CN106868443A (en) * 2017-02-24 2017-06-20 中国人民解放军装甲兵工程学院 A kind of Supersonic Plasma Spraying technique applies layer optimizing method
CN107937906A (en) * 2017-11-27 2018-04-20 常州大学 A kind of method that laser melting coating of the online powder feeding of argon gas prepares Cr Ni coatings
CN109504964A (en) * 2018-10-12 2019-03-22 翟长生 A kind of bearing ring complex intensifying intelligence production line
CN110983236A (en) * 2019-12-31 2020-04-10 北京金业隆诚科技有限公司 Remelting method for boiler membrane wall anticorrosive coating in vacuum furnace
CN111495635A (en) * 2020-04-23 2020-08-07 佛山科学技术学院 Self-adaptive spraying method
CN111455306A (en) * 2020-05-07 2020-07-28 超达阀门集团股份有限公司 Manufacturing process of nickel-based tungsten carbide wear-resistant coating of metal hard sealing ball valve
CN111621782A (en) * 2020-06-29 2020-09-04 江苏科环新材料有限公司 Method for preparing protective coating by high-frequency induction heating and then powder feeding reciprocating forming-remelting
CN111979542A (en) * 2020-08-06 2020-11-24 江苏科环新材料有限公司 High-frequency remelting coating preparation device for boiler pipe of garbage power station under composite motion condition

Similar Documents

Publication Publication Date Title
US5915743A (en) Metal spray tool repair system
US6673169B1 (en) Method and apparatus for repairing superalloy components
EP0293945A2 (en) Apparatus for delivering a consistent, continuous flow of powder
US9643877B2 (en) Thermal plasma treatment method
EP0119343A1 (en) Turbine engine seal and method for repair thereof
JP4920933B2 (en) Plasma spraying apparatus and method for monitoring the state of the apparatus
CN103343338B (en) Laser restoration method of flaring die
US20110094999A1 (en) Application of surface relief to spot welding electrodes
CN103305842B (en) The laser repair method of bending die
EP1222051A1 (en) Method and apparatus for electrospark alloying
CN104379269A (en) Method for producing rolling roll, rolling roll, and device for producing rolling roll
US20020000369A1 (en) Method and device for discharging surface treatment
CN108118326B (en) Additive manufacturing method of 3.87m high-purity copper rotary target material
CN107805809A (en) A kind of automobile die surface coating renovation technique
CN115418601A (en) High-frequency induction heating heavy fusible link and method for preparing anti-explosion coating of anti-explosion forklift fork
US6297466B1 (en) Method for repairing steel spray-formed tooling with TIG welding process
EP2845655A1 (en) Method for manufacturing piercing plug
JP5547864B2 (en) Discharge surface treatment method and apparatus
EP1662022A1 (en) Device for electrical discharge coating and method for electrical discharge coating
JP4303447B2 (en) Manufacturing method of biaxial cylinder
CN103343339A (en) Laser restoration method for drawing die
CN103305841A (en) Laser repair method for punching die
KR20090130570A (en) Method for coating surface of core pin of mold for high pressure casting
CN2314882Y (en) Mold repairing machine for inert gas protection welding of micro pulse rotary melting electrode
CN116555755A (en) Preparation method of cladding alloy layer on concave and convex spherical matching surfaces and support

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