CN109676317B - Method for repairing combined transmission generator shell again - Google Patents
Method for repairing combined transmission generator shell again Download PDFInfo
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- CN109676317B CN109676317B CN201811335073.0A CN201811335073A CN109676317B CN 109676317 B CN109676317 B CN 109676317B CN 201811335073 A CN201811335073 A CN 201811335073A CN 109676317 B CN109676317 B CN 109676317B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
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Abstract
The invention relates to the field of repairing of combined transmission generator housings, in particular to a method for repairing a combined transmission generator housing again, which comprises the following steps: (1) shot blasting and paint removing; (2) removing oil from the part; (3) cleaning with saturated steam; (4) heating; (5) drying; (6) preparing a hole sealing agent; (7) brushing; (8) baking; (9) circularly sealing holes; (10) cooling; (11) testing and checking; parts are cleaned by a steam cleaning machine, the movement speed of the dirt surface molecule-resistant is accelerated by steam generated at high temperature, and various stubborn stains are eliminated by destroying the binding force between the parts, so that the removing effect is good; utilize hole sealing process flow repeated to restore combination transmission generator casing, increase casing seepage repair ability, reduce purchasing pressure, promote and equip the guarantee ability.
Description
Technical Field
The invention relates to the field of repairing of combined transmission generator housings, in particular to a method for repairing a combined transmission generator housing again.
Background
When the combined transmission generator shell is used in an external field, leakage faults outside the shell often occur, and the leakage phenomenon of the shell is more and more along with the increase of the using time. The shell is the most important part of the group distribution, and once scrapped, the whole product is scrapped. The group transmission price value is high, spare parts are in short supply, the economic loss of scrapping is large, and the combat readiness training is seriously influenced. The domestic repair enterprises have no case leakage repair capability, and manufacturers treat the case leakage repair capability in a repair welding mode, but the case leakage repair capability is not suitable for repair products.
The existing repair welding technology generally has two types: firstly, a direct repair welding process method is adopted for the leakage position of the shell at high temperature; and secondly, under the condition that the leakage points of the shell are few, a threaded hole is formed in the leakage point, a stud with the same thread and proper thickness is manufactured, the stud is screwed into the thread and then the periphery of the stud is sealed by repair welding, and then the protruding stud is polished to be flush.
Because the shell used as a finished product part has a plurality of matching sizes inside, the requirement on form and position tolerance is very high, the shell and accessories inside are matching pieces, and mounting holes at two ends of the shell have very high coaxiality requirements.
Disclosure of Invention
In order to solve the problems, the invention provides a method for repairing a combined transmission generator shell.
A method for repairing a combined transmission generator shell comprises the following specific steps:
(1) shot blasting and paint removing: compressed air is adopted to drive the iron shots to realize paint removal through high-speed spraying of a special tool;
(2) removing oil from parts: degreasing by using a special degreasing agent;
(3) saturated steam cleaning:
a: adding water and liquid medicine into a steam cleaning machine;
b: when the steam pressure reaches a specified value, the power switch is turned on, and the steam can be used;
c: aligning the part to be cleaned with a spray gun, and repeatedly washing;
d: after the cleaning, placing the mixture in a shade place for natural cooling;
(4) heating: the heating temperature of the parts is 120-140 ℃, and the heat preservation time is not less than 60 min;
(5) and (3) drying: putting the parts into an oven, setting the temperature at 120-150 ℃, and keeping the temperature for not less than 120 min;
(6) preparing a hole sealing agent: uniformly stirring the resin and the curing agent according to a certain proportion to form a hole sealing agent;
(7) brushing: after the part is taken out, brushing the surface of the part needing hole sealing by using a brush immediately;
(8) baking: placing the part in an oven after standing for 6h at room temperature, setting the temperature at 120-150 ℃, and keeping the temperature for not less than 120 min;
(9) and (3) circulating hole sealing: repeating the step (6) to the step (8);
(10) cooling: after the part is cooled, hole sealing is finished;
(11) and (4) test inspection: the test examinations were carried out using conventional methods.
The special oil removing agent in the step (2) can be acetone, butanone, gasoline, alkaline oil removing or cleaning agent.
The steam cleaning machine in the step (3) comprises a shell, a spray gun and a power supply which are matched with the shell, a valve group which is arranged in the shell and used for adjusting water flow, a sensor group which is arranged in the shell and used for sensing, and a water supply assembly which is arranged in the shell and used for supplying liquid medicine and water flow.
The valve group comprises a first drain valve and a second drain valve for draining water, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a fourth electromagnetic valve, a fifth electromagnetic valve for regulating water flow, a first check valve, a second check valve, a third check valve, an adjustable flow dividing valve and a liquid discharge valve for discharging liquid medicine.
The sensor group comprises a water level sensor for adjusting the water level, a temperature sensor for sensing the temperature, a pressure sensor for sensing the water pressure and a liquid level sensor for sensing the liquid medicine level.
The water supply assembly comprises a water tank, a high-pressure water supply pump matched with the water tank, a motor connected with the high-pressure water supply pump, a steam boiler matched with the water tank, an electric heating pipe arranged in the steam boiler, a pressure gauge matched with the water tank and a liquid medicine tank matched with the water tank.
The weight ratio of the resin and the curing agent in the step (6) is 2:1, the selected resin is colorless, and the curing agent is dark.
The configured sealing agent needs to be used within 1 h.
The step (7) needs to be maintained for 30-40 s after the sealant is fully distributed.
The invention has the beneficial effects that: parts are cleaned by a steam cleaning machine, the movement speed of the dirt surface molecule-resistant is accelerated by steam generated at high temperature, and various stubborn stains are eliminated by destroying the binding force between the parts, so that the removing effect is good; utilize hole sealing process flow repeated to restore combination transmission generator casing, increase casing seepage repair ability, reduce purchasing pressure, promote and equip the guarantee ability.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic view of the principle structure of the steam cleaner of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below.
As shown in fig. 1, a method for repairing a combined transmission generator housing includes the following steps:
(1) shot blasting and paint removing: compressed air is adopted to drive the iron shots to realize paint removal through high-speed spraying of a special tool;
(2) removing oil from parts: degreasing by using a special degreasing agent;
(3) saturated steam cleaning:
a: adding water and liquid medicine into a steam cleaning machine;
b: when the steam pressure reaches a specified value, the power switch is turned on, and the steam can be used;
c: aligning the part to be cleaned with a spray gun, and repeatedly washing;
d: after the cleaning, placing the mixture in a shade place for natural cooling;
(4) heating: the heating temperature of the parts is 120-140 ℃, and the heat preservation time is not less than 60 min;
(5) and (3) drying: putting the parts into an oven, setting the temperature at 120-150 ℃, and keeping the temperature for not less than 120 min;
(6) preparing a hole sealing agent: uniformly stirring the resin and the curing agent according to a certain proportion to form a hole sealing agent;
(7) brushing: after the part is taken out, brushing the surface of the part needing hole sealing by using a brush immediately;
(8) baking: placing the part in an oven after standing for 6h at room temperature, setting the temperature at 120-150 ℃, and keeping the temperature for not less than 120 min;
(9) and (3) circulating hole sealing: repeating the step (6) to the step (8);
(10) cooling: after the part is cooled, hole sealing is finished;
(11) and (4) test inspection: the test examinations were carried out using conventional methods.
Utilize hole sealing process flow repeated to restore combination transmission generator casing, increase casing seepage repair ability, reduce purchasing pressure, promote and equip the guarantee ability.
The special oil removing agent in the step (2) can be acetone, butanone, gasoline, alkaline oil removing or cleaning agent.
The steam cleaning machine in the step (3) comprises a shell 1, a spray gun 19 and a power supply 20 which are matched with the shell 1, a valve group which is arranged in the shell 1 and used for adjusting water flow, a sensor group which is arranged in the shell 1 and used for sensing, and a water supply assembly which is arranged in the shell 1 and used for supplying liquid medicine and water flow.
The valve group comprises a first drain valve 3 and a second drain valve 9 for draining water, a first electromagnetic valve 5, a second electromagnetic valve 13, a third electromagnetic valve 17, a fourth electromagnetic valve 18, a fifth electromagnetic valve 23, a first check valve 8 for adjusting the water flow direction, a second check valve 15, a third check valve 21, an adjustable diverter valve 22 and a drain valve 26 for draining liquid medicine.
The sensor group comprises a water level sensor 4 for adjusting the water level, a temperature sensor 11 for sensing the temperature, a pressure sensor 14 for sensing the water pressure and a liquid level sensor 25 for sensing the liquid medicine level.
The water supply assembly comprises a water tank 2, a high-pressure water supply pump 6 matched with the water tank 2, a motor 7 connected with the high-pressure water supply pump 6, a steam boiler 10 matched with the water tank 2, an electric heating pipe 12 arranged in the steam boiler 10, a pressure gauge 16 matched with the water tank 2 and a liquid medicine tank 24 matched with the water tank 2.
The steam cleaning machine is used for cleaning parts, the movement speed of the dirt surface molecule-resistant is accelerated through steam generated at high temperature, and various stubborn stains are eliminated by destroying the binding force between the dirt surface molecule-resistant and the dirt surface molecule-resistant, so that the removing effect is good.
The weight ratio of the resin and the curing agent in the step (6) is 2:1, the selected resin is colorless, and the curing agent is dark.
The configured sealing agent needs to be used within 1 h.
The step (7) needs to be maintained for 30-40 s after the sealant is fully distributed.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A method for reconditioning a motor housing for a combined drive generator, comprising: the method comprises the following specific steps:
(1) shot blasting and paint removing: compressed air is adopted to drive the iron shots to realize paint removal through high-speed spraying of a special tool;
(2) removing oil from parts: degreasing by using a special degreasing agent;
(3) saturated steam cleaning:
a: adding water and liquid medicine into a steam cleaning machine;
b: turning on a power switch to start to use when the steam pressure reaches a specified value;
c: aligning the part to be cleaned with a spray gun, and repeatedly washing;
d: after the cleaning, placing the mixture in a shade place for natural cooling;
(4) heating: the heating temperature of the parts is 120-140 ℃, and the heat preservation time is not less than 60 min;
(5) and (3) drying: putting the parts into an oven, setting the temperature at 120-150 ℃, and keeping the temperature for not less than 120 min;
(6) preparing a hole sealing agent: uniformly stirring the resin and the curing agent according to a certain proportion to form a hole sealing agent;
(7) brushing: after the part is taken out, brushing the surface of the part needing hole sealing by using a brush immediately;
(8) baking: placing the part in an oven after standing for 6h at room temperature, setting the temperature at 120-150 ℃, and keeping the temperature for not less than 120 min;
(9) and (3) circulating hole sealing: repeating the step (6) to the step (8);
(10) cooling: after the part is cooled, hole sealing is finished;
(11) and (4) test inspection: carrying out test inspection by using a conventional method;
the steam cleaning machine in the step (3) comprises a shell (1), a spray gun (19) and a power supply (20) which are matched with the shell (1), a valve group which is arranged in the shell (1) and used for adjusting water flow, a sensor group which is arranged in the shell (1) and used for sensing, and a water supply assembly which is arranged in the shell (1) and used for supplying liquid medicine and water flow, wherein the valve group comprises a first drain valve (3) and a second drain valve (9) which are used for draining water, a first electromagnetic valve (5) used for regulating and controlling water flow, a second electromagnetic valve (13), a third electromagnetic valve (17), a fourth electromagnetic valve (18), a fifth electromagnetic valve (23), a first check valve (8) used for regulating the direction of water flow, a second check valve (15), a third check valve (21), an adjustable flow dividing valve (22) and a liquid discharge valve (26) used for discharging liquid medicine, and the sensor group comprises a water level sensor (, The temperature sensor (11) used for sensing temperature, the pressure sensor (14) used for sensing water pressure and the liquid level sensor (25) used for sensing liquid level of liquid medicine, the water supply assembly comprises a water tank (2), a high-pressure water supply pump (6) matched with the water tank (2), a motor (7) connected with the high-pressure water supply pump (6), a steam oven (10) matched with the water tank (2), an electric heating pipe (12) arranged in the steam oven (10), a pressure gauge (16) matched with the water tank (2) and a liquid medicine box (24) matched with the water tank (2).
2. A method for reconditioning a motor housing for a combination transmission generator as defined in claim 1, wherein: the special oil removing agent in the step (2) is any one of acetone, butanone, gasoline, alkaline oil removing or cleaning agent.
3. A method for reconditioning a motor housing for a combination transmission generator as defined in claim 1, wherein: the weight ratio of the resin and the curing agent in the step (6) is 2:1, the selected resin is colorless, and the curing agent is dark.
4. A method for reconditioning a motor housing for a combination transmission generator as defined in claim 3, wherein: the configured sealing agent needs to be used within 1 h.
5. A method for reconditioning a motor housing for a combination transmission generator as defined in claim 1, wherein: the step (7) needs to be maintained for 30-40 s after the sealant is fully distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811335073.0A CN109676317B (en) | 2018-11-10 | 2018-11-10 | Method for repairing combined transmission generator shell again |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811335073.0A CN109676317B (en) | 2018-11-10 | 2018-11-10 | Method for repairing combined transmission generator shell again |
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| Publication Number | Publication Date |
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| CN109676317A CN109676317A (en) | 2019-04-26 |
| CN109676317B true CN109676317B (en) | 2021-03-16 |
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| CN201811335073.0A Active CN109676317B (en) | 2018-11-10 | 2018-11-10 | Method for repairing combined transmission generator shell again |
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| CN113857138B (en) * | 2021-09-09 | 2022-06-28 | 沈阳斯米贸易有限公司 | Cleaning method for clamp of welding robot |
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| JPS6215025A (en) * | 1985-07-11 | 1987-01-23 | Fuji Seisakusho:Kk | Repairing method for fluid leakage of casting |
| US20130034436A1 (en) * | 2011-08-02 | 2013-02-07 | General Electric Company | Systems, Method, and Apparatus for Modifying a Turbine Casing |
| CN103286516B (en) * | 2013-05-31 | 2015-10-07 | 河海大学 | A kind of hydraulic flow passage components cavitation corrosion complex repairation coating and preparation method thereof |
| CN204685535U (en) * | 2015-04-09 | 2015-10-07 | 南京九亿机械有限公司 | Saturated vapor cleaning machine |
| CN107059083A (en) * | 2017-01-22 | 2017-08-18 | 中国电子科技集团公司第十四研究所 | One kind lifting corrosion proof method of chrome-plated piston bar |
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Inventor after: Xiao Haibo Inventor after: Wang Xiao Inventor after: Qian Fuping Inventor after: Cai Peijun Inventor after: Fang Hui Inventor after: Luo Yan Inventor before: Qian Fuping Inventor before: Cai Peijun Inventor before: Fang Hui Inventor before: Luo Yan |
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