CN203096155U - Plasma and thermal-spraying composite repair device - Google Patents
Plasma and thermal-spraying composite repair device Download PDFInfo
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- CN203096155U CN203096155U CN2013200622034U CN201320062203U CN203096155U CN 203096155 U CN203096155 U CN 203096155U CN 2013200622034 U CN2013200622034 U CN 2013200622034U CN 201320062203 U CN201320062203 U CN 201320062203U CN 203096155 U CN203096155 U CN 203096155U
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- plasma
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- thermospray
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Abstract
The utility model discloses a plasma and thermal-spraying composite repair device. The plasma and thermal-spraying composite repair device comprises a plasma control cabinet, a powder conveyer for providing metal powder to the plasma control cabinet, a gas cylinder for providing plasma gas to the plasma control cabinet, and a power supply, wherein a spraying gun is installed on the plasma control cabinet; a movable workbench is close to the bottom of the spraying gun; the workbench is capable of moving in a horizontal direction and a vertical direction and moving into a thermal-spraying cabinet; the thermal-spraying cabinet can be switched between an open state and a closed state; when the thermal-spraying cabinet is in the open state, the workbench can move into the thermal-spraying cabinet, and when the workbench moves into the thermal-spraying cabinet, the thermal-spraying cabinet can be switched to the closed state, thus performing thermal-spraying treatment on a metal component on the workbench; and a special clamp is installed on the workbench so that the component can rotate during the spraying process.
Description
Technical field
The utility model relates to the physical process field, especially, relates to the device of the compound reparation metallic coating of a kind of plasma and thermospray.
Background technology
In the industrial production, the badly damaged of spot corrosion corrosion spalling or fatigability appears in the parts of a lot of big-and-middle-sized hardwares easily after long term operation under high temperature, the heavy load conditions, if do not change the metal parts that is damaged, can have a strong impact on the normal operation of equipment, otherwise, then can cause the parts active time to shorten, scrap in advance, increase the financial loss of production cost and stopping production.
Existing recovery technique is by technology such as built-up welding, repair welding, thermospray and plating mostly.But built-up welding, restorative procedures such as repair welding, the heat affected zone is wide, and distortion is big, and technology is complicated, is difficult to guarantee the performance of postwelding.The coat binding strength of electrochemical plating is lower, wears no resistance, and the plating of coating is thick limited in one's ability; Hot spray process is fit to the big area reparation, but coating is in conjunction with being generally mechanical bond, and bonding strength is lower, still easy impaired peeling off behind the long-play.
Some recovery techniques have overcome above-mentioned defective better, for example: " metal thermal spraying and powder coating electrostatic spraying composite coat antiseptic technique (number of patent application: 200710070639.7) " and " based on the thermospray gradient cladding working method of laser remolten repeatedly (number of patent application: 200710131168.6) ".The former adopts a kind of metal thermal spraying and powder coating electrostatic spraying composite coat antiseptic technique, after at first iron and steel parts being carried out pre-treatment, carry out metal thermal spraying in 4 hours, after metal layer thickness reaches 40～120 μ m, carry out the powder coating electrostatic spraying again, make powder bed thickness reach 60～120 μ m; Send into baking oven for heating then and solidify, make the compound coating total thickness reach 100～240 μ m.Compound coating after this art breading is than next thinner of common coating and erosion resistance is stronger, has water-fast, shock-resistant, weather-proof, long-effective protection, characteristics such as the anticorrosion life-span is long, outward appearance is bright and clean, environment-protecting clean; The latter adopts repeatedly the laser remolten method to carry out Compound Machining to the thermospray gradient cladding, and each the sub-coating that has overcome gradient cladding under no laser remolten or laser remolten can not all reach in metallurgical binding, the coating gradient-structure can be destroyed, the thermospray lamellar structure such as can not eliminate at shortcoming in the gradient cladding.Detailed process is at first purifying and activation treatment the matrix metal material; At first kind of gradient material of matrix surface thermospray, then first gradient layer is carried out laser remolten one time then, make between itself and matrix and form metallurgical binding; The surface of first gradient layer behind laser remolten sprays second kind of gradient material more subsequently, and carries out the laser remolten second time, makes between two gradient claddings and forms metallurgical binding; Adopt this method successively, all gradient claddings are carried out thermospray/laser remolten processing respectively.It is simple and reliable to have working method, can satisfy the characteristics that properties of coating requires.
Although these recovery techniques can both prepare evenly and possess the coating of certain performance at metal base surface, but above-mentioned technology and brush coating technology all produce heat effect in the preparation coating procedure, prepared coating has bigger porosity and presents the residual tension state, is easy to generate fracture and inefficacy that crizzle causes structural metal element.Parts such as aircraft turbine dish tightness system, turbine engine blade, metallurgical roller are operated under the severe environment, the active time that the motor efficiency that these parts cause because of fretting wear reduces and the high erosion of high temperature causes is lacked, and wear-resisting, the anti-fretting wear performance that existing above-mentioned technology prepares coating can't satisfy the needs of engineering severe environment.
The utility model content
In order to overcome the shortcoming of above-mentioned prior art, the utility model provides a kind of prosthetic device based on plasma spraying and thermospray Compound Machining, this device has plasma spraying and two kinds of repairing effects of thermal spray process of either, and is little to the heat affecting of matrix, distortion is little, it is good to organize, repair the comprehensive mechanical performance height of back part.
The utility model is realized with following technical scheme: the prosthetic device of a kind of plasma spraying and thermospray Compound Machining is characterized in that the prosthetic device of described plasma spraying and thermospray Compound Machining comprises:
A plasma housing, a powder feeder of metal powder material being provided for the plasma housing, give the gas cylinder of plasma housing for one for plasma (orifice) gas, power supply, a spray gun that is installed on the plasma housing, a worktable that is positioned at the spray gun below, described worktable can move in the horizontal and vertical directions, a thermospray cabinet, described worktable can move in the described thermospray cabinet, described thermospray cabinet can open and air-tight state between change, when it was open mode, worktable can move in this thermospray cabinet, when movable workbench is to this thermospray cabinet, this thermospray cabinet can change air-tight state into, thereby the metal parts that is repaired on the worktable is carried out thermal spraying treatment.
Preferably, described worktable is equipped with unit clamp, can realize the revolution of metal parts in spraying process that is repaired on the worktable.
Preferably, described plasma (orifice) gas is an argon gas.
The beneficial effects of the utility model are: 1. security, stability height: after this technology is repaired, need carry out mechanical integrated performance test, generally can reach or be higher than the overall performance of new parts, guarantee to repair stability and the security of back part in operational process.2. with low cost: for buying new parts again, the price of reparation is generally about 1/3 of new parts, reduces cost greatly, and for enterprise reduces the heavy burdens, so these technology potentiality are very big.3. environmental protection: can not produce any objectionable impurities in whole reparation, the course of processing, to environment without any pollution.
Description of drawings
Fig. 1 is the utility model embodiment plasma and the compound prosthetic device of thermospray.
Fig. 2 is the synoptic diagram of renovation technique in the utility model.
Embodiment
Describe the details and the working condition of the concrete device of the present invention's proposition in detail below in conjunction with accompanying drawing.
As shown in Figure 1, prosthetic device based on plasma spraying and thermospray Compound Machining has a plasma housing 3, the powder feeder 2 of metal powder material is provided for plasma housing 3, give the gas cylinder 5 and the power supply 4 of plasma housing 3 air feed, spray gun 1 is installed on the plasma housing 3, the below installation one of close spray gun 1 is worktable 11 movably, worktable 11 can move in the horizontal and vertical directions, it can move in the thermospray cabinet 9, this thermospray cabinet 9 can open and air-tight state between change, when it is open mode, worktable can move in this thermospray cabinet 9, when movable workbench is to this thermospray cabinet 9, the door 8 of this thermospray cabinet 9,10 can change air-tight state into, thereby the metal parts on the worktable is carried out thermal spraying treatment.Worktable is equipped with unit clamp 7, can realize the revolution of parts in spraying process.By the control of control device 6 realizations to the switching of thermospray cabinet, parts revolution, plasma spraying and movable workbench.
As shown in Figure 2, the renovation technique of this device: after the support roller part is impaired, at first damage and failure cause analysis, then damaged part is cleaned, choose the repair materials that is complementary with body material simultaneously, utilize plasma spray system that damaged part is sprayed reparation then, utilizing the thermospray cabinet to carry out laser remolten, require to carry out the mechanical workout shaping according to original part at last, follow-uply carry out corresponding Performance Detection and estimate until being delivered for use.Detailed process is as follows:
1, damaged parts pre-treatment
1) cleans
For removing surface and oil contaminant, can clean the damaged part and the periphery surface of parts to be repaired with gasoline, alcohol or acetone and other organic solvent, must etc. carry out plasma spraying again after the drying.
2) sandblast and preheating
Be the activation matrix surface, the bonding force when strengthening spraying must be carried out sandblasting to parts damaged part and peripheral position before spraying.In addition,, before spraying, need to carry out thermal pretreatment, generally be preheating to 200～300 ℃ in order to reduce to spray the tearing tendency of back coating.
2, plasma spraying reparation
Use argon gas as plasma (orifice) gas, produce high-temperature plasma through ionization, with the metal powder material heat fused or the fusion that are complementary with body material that chooses, by lance ejection to part damaged part surface, spray repeatedly according to certain track, until the damaged part reparation.
3, thermospray reflow process
Parts after the plasma spraying reparation are clipped on the unit clamp of worktable, turn round with certain speed, open the thermospray cabinet simultaneously, with movable workbench to the thermospray cabinet, after treating that parts enter the interior spraying area of thermospray cabinet fully, the thermospray cabinet is adjusted into air-tight state, the parts in the thermospray cabinet are carried out the thermospray remelting.
4, mechanical workout shaping process
Mechanical workout shaping process can be carried out on the large-scale lathe of special use, also can make speed lathe by oneself.Adjust working process parameter and cut, until satisfying the part time job demand.
Working process: impaired workpiece 12 is installed on the worktable 11, argon gas is housed as plasma (orifice) gas among the gas cylinder I5, produce high-temperature plasma through plasma housing 3, power supply 4 ionization, powder feeder 2 is carried the metal powder material that is complementary with body material simultaneously, be ejected into the damaged part surface of the impaired workpiece 12 on the worktable 11 by spray gun 1, digital control system 6 control worktable 11 and clamping apparatus move and rotation together, spray repeatedly according to certain track, until the damaged part reparation.
Parts after the plasma spraying reparation are clipped on the unit clamp of worktable, turn round with certain speed, open the thermospray cabinet simultaneously, with movable workbench to the thermospray cabinet, after treating that parts enter the interior spraying area of thermospray cabinet fully, the thermospray cabinet is adjusted into air-tight state, the parts in the thermospray cabinet are carried out the thermospray remelting.
Above content only is preferred embodiment of the present utility model, to those skilled in the art, according to thought of the present utility model, on specific implementation and range of application, can carry out to a certain degree change to it, the content of this specification sheets should not be construed as restriction of the present utility model.
Claims (3)
1. the prosthetic device of plasma spraying and thermospray Compound Machining is characterized in that the prosthetic device of described plasma spraying and thermospray Compound Machining comprises:
A plasma housing, a powder feeder of metal powder material being provided for the plasma housing, give the gas cylinder of plasma housing for one for plasma (orifice) gas, power supply, a spray gun that is installed on the plasma housing, a worktable that is positioned at the spray gun below, described worktable can move in the horizontal and vertical directions, a thermospray cabinet, described worktable can move in the described thermospray cabinet, described thermospray cabinet can open and air-tight state between change, when it was open mode, worktable can move in this thermospray cabinet, when movable workbench is to this thermospray cabinet, this thermospray cabinet can change air-tight state into, thereby the metal parts that is repaired on the worktable is carried out thermal spraying treatment.
2. the prosthetic device of plasma spraying as claimed in claim 1 and thermospray Compound Machining is characterized in that described worktable is equipped with unit clamp, can realize the revolution of metal parts in spraying process that is repaired on the worktable.
3. the prosthetic device of plasma spraying as claimed in claim 1 and thermospray Compound Machining is characterized in that described plasma (orifice) gas is an argon gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200622034U CN203096155U (en) | 2013-01-31 | 2013-01-31 | Plasma and thermal-spraying composite repair device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200622034U CN203096155U (en) | 2013-01-31 | 2013-01-31 | Plasma and thermal-spraying composite repair device |
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| Publication Number | Publication Date |
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| CN203096155U true CN203096155U (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013200622034U Expired - Lifetime CN203096155U (en) | 2013-01-31 | 2013-01-31 | Plasma and thermal-spraying composite repair device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106167888A (en) * | 2016-08-05 | 2016-11-30 | 中山市恒辉自动化科技有限公司 | A kind of plasma sprayer operating mechanism for paint spraying machine |
| CN109680240A (en) * | 2019-02-21 | 2019-04-26 | 广东华祐新材料有限公司 | A kind of low-temperature plasma spraying filming equipment |
| CN110166131A (en) * | 2019-06-28 | 2019-08-23 | 厦门佰顺兴自动化科技有限公司 | A kind of plasma spraying burn-out-proof rifle method and system |
| CN115418601A (en) * | 2022-08-26 | 2022-12-02 | 南京市特种设备安全监督检验研究院 | High-frequency induction heating heavy fusible link and method for preparing anti-explosion coating of anti-explosion forklift fork |
-
2013
- 2013-01-31 CN CN2013200622034U patent/CN203096155U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106167888A (en) * | 2016-08-05 | 2016-11-30 | 中山市恒辉自动化科技有限公司 | A kind of plasma sprayer operating mechanism for paint spraying machine |
| CN106167888B (en) * | 2016-08-05 | 2019-03-01 | 西安可易环境科技有限公司 | A kind of plasma sprayer operating mechanism for paint spraying machine |
| CN109680240A (en) * | 2019-02-21 | 2019-04-26 | 广东华祐新材料有限公司 | A kind of low-temperature plasma spraying filming equipment |
| CN110166131A (en) * | 2019-06-28 | 2019-08-23 | 厦门佰顺兴自动化科技有限公司 | A kind of plasma spraying burn-out-proof rifle method and system |
| CN115418601A (en) * | 2022-08-26 | 2022-12-02 | 南京市特种设备安全监督检验研究院 | High-frequency induction heating heavy fusible link and method for preparing anti-explosion coating of anti-explosion forklift fork |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Granted publication date: 20130731 |
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| CX01 | Expiry of patent term |