CN102527618A - Waste water pump repairing and coating method - Google Patents
Waste water pump repairing and coating method Download PDFInfo
- Publication number
- CN102527618A CN102527618A CN2012100292443A CN201210029244A CN102527618A CN 102527618 A CN102527618 A CN 102527618A CN 2012100292443 A CN2012100292443 A CN 2012100292443A CN 201210029244 A CN201210029244 A CN 201210029244A CN 102527618 A CN102527618 A CN 102527618A
- Authority
- CN
- China
- Prior art keywords
- waste
- old
- coated
- pump
- waste water
- 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.)
- Granted
Links
Abstract
The invention relates to a waste water pump repairing and coating method, which includes the following steps of (1) doing preparations including building a heat-insulation shed, derusting to-be-coated surfaces of waste water pumps until fresh metal surfaces are exposed completely and then keeping the temperature of bodies of the waste water pumps and the heat-insulation shed within 20 DEGC-30 DEG C; (2) repairing tongues of the waste water pumps; (3) repairing the bodies and sealing ring joint surfaces of the waste water pumps; (4) repairing grooves on split surfaces of the waste water pumps; (5) reinforcing the bodies of the waste water pumps locally; and (6) repairing and coating passages of the bodies of the waste water pumps. Different damage portions of the waste water pumps can be coated with different coatings, so that cavitation abrasion resistance capacity of the waste water pumps is strengthened greatly, performances of the water pumps can be improved greatly, electric power can be saved, and cost for irrigation can be reduced.
Description
Technical field
The present invention relates to the hydraulic engineering technical field, relate in particular to waste and old water pump reparation, be coated with maintaining method.
Background technology
All the Heavenly Stems and Earthly Branches flow water intaking to the engineering of irrigating by lifting water to a higher level with a water pump, etc. of the Huanghe valley in the Yellow River of high concentration of sediment, and the cavitation (in wear-out failure is serious, has reduced water lift efficient, has influenced the in good time water of crops, has increased the irrigation cost, has increased the weight of the benefited masses' burden, is having a strong impact on project benefit.Because the water pump update cost is big, the most of water pump fallback in most irrigated areas, even the irrigated area pumping plant efficient that has only also used continuing in tens percent o'clock, and water pump mainly is to cause scrapping because of the pump housing destroys.
Summary of the invention
Technical problem to be solved by this invention provides the strong waste and old water pump reparation of low, the anti-cavitation wear ability of a kind of cost, is coated with maintaining method.
For addressing the above problem, waste and old water pump reparation of the present invention, be coated with maintaining method, may further comprise the steps:
⑴ preparation: take the insulation canopy earlier, eliminate rust until exposing fresh metal covering fully with the applicator surface of air compressor machine drive sand-blasting gun then the waste and old pump housing, last, make in the said waste and old pump housing and the said insulation canopy to reach 20 ~ 30 ℃;
⑵ the cut water reparation of the said waste and old pump housing: burn the old coating of removing the cut water damaged location with the acetylene burning torch, remove the cut water edge of damage, make it neat; Extract size, steel plate that shape is identical with the damage cut water, break into 45 ° of grooves,, shorten cut water length 4 ~ 30mm according to this pump characteristic and operating condition in the welding position, the cut water end to axle center and impeller near 3 ~ 18mm; The preheating welding position, making its temperature is 280 ~ 320 ℃, intermittently welds with pure nickel electrode, knock on the side weld limit, to eliminate temperature stress;
⑶ the pump housing of the said waste and old pump housing and sealing ring faying face are repaired: on cleaning good pump seat, pump cover and sealing ring faying face, being coated with thickness equably is 0.2 ~ 0.4mm subbing; Then mend flat gap, cavitation erosion groove with the coating of flour filler again; Being coated with thickness at the sealing ring outer peripheral face then is 0.1 ~ 0.2mm butter, is put on the pump seat in placely together with macro-axis and impeller, puts pump cover; Open the face bolt in fastening, simultaneously frequent rotating joint; After the primary solidification, hang out macro-axis, remove the unnecessary coating of extruding; Use the acetone coating surface; After the whole polishings of coating surface one time, being coated with thickness is 0.2 ~ 0.4mm investment precoat, carries out pressing again; Repetition several to sealing ring and impeller do not have friction and get final product;
⑷ opening the gully of face in the said waste and old pump housing repairs: the place, gully that between pump seat, pump cover and sealing ring three junction pumping chambers and suction chamber, forms; The said thickness of brush is 0.2 ~ 0.4mm subbing earlier; Fill up compacting with middle coating intermediate again; And push away flatly with the I-steel ruler that is heated to 100 ℃, brushing thickness at last is the said investment precoat of 0.2 ~ 0.4mm; Solidify the back with oilstone be ground to in to open face smooth equally;
⑸ the local reinforcement of the said waste and old pump housing: will clear up the good pumping chamber both sides and the said subbing of surfaces coated of pump cover, and arrange the MULTILAYER COMPOSITE reinforcement with high-strength carbon fibre then and get final product;
⑹ the runner of the said waste and old pump housing is repaiied and is coated with: at first being coated with thickness equably at water passage surface is the said subbing of 0.2 ~ 0.4mm, and smearing thickness is the said middle coating intermediate of 0.2 ~ 40mm before said subbing is uncured; Repair to the design flow road shape with hot trowel then, repair after 2 ~ 3 hours primary solidification; Be that 0.3 ~ 0.5mm investment precoat is evenly coated on the said middle coating intermediate with said thickness again; At last, the temperature of said insulation canopy is risen to room temperature, after 24 hours temperature is increased to 20 ~ 40 ℃, after 24 hours, solidify again, faying face is repaired got final product.
Replace the ⑴ of step described in the claim 1 with following preparation method: take the insulation canopy earlier; Clean the greasy dirt on the waste and old pump housing with solvent acetone then; Secondly eliminate rust until exposing fresh metal covering fully with the applicator surface of air compressor machine drive sand-blasting gun to the said waste and old pump housing; At last, make in the said waste and old pump housing and the said insulation canopy and reach 20 ~ 30 ℃.
Subbing among said step ⑶, ⑷, ⑸ and the ⑹ all is to be 100% epoxy resin and to be mixed by the carboxyl of epoxy resin quality 12% or liquid hydroxyl butyronitrile, 0.3 ~ 0.7% catalyst, 9% diethylenetriamine, 15% alumina powder and 30% iron oxide red by mass ratio.
The coating of the flour filler among the said step ⑶ is meant that the particle diameter that in said subbing, adds 3 times of its quality is 100 purpose diamond dust.
Investment precoat among said step ⑶, ⑷ and the ⑹ all is to be 100% epoxy resin and to be mixed by the carboxyl of epoxy resin quality 12% or liquid hydroxyl butyronitrile, 0.3 ~ 0.7% catalyst, 9% diethylenetriamine and 25% molybdenum bisuphide by mass ratio.
Investment precoat among said step ⑷ and the ⑹ all is to be that 100% epoxy resin and the diamond dust that is 70 orders 300 ~ 500% by the carboxyl of epoxy resin quality 12% or liquid hydroxyl butyronitrile, 0.3 ~ 0.7% catalyst, 9% diethylenetriamine and particle diameter mix by mass ratio.
Catalyst among the said step ⑺ is meant rare earth cerium oxide Ce
2O
3
Said epoxy resin is bisphenol A type epoxy resin E44 (6101).
Said diamond dust is carborundum or alundum (Al.
The present invention compared with prior art has the following advantages:
1, owing to adopt the combination of different coating according to different damaged locations among the present invention, therefore, improved the anti-cavitation wear ability of water pump effectively.Add iron oxide red and alumina powder in the subbing, improve adhesion strength with pump housing metal surface; Middle coating intermediate adds diamond dust; Epoxy coating as binding agent has certain toughness and elasticity, can effectively cushion cavitation erosion kinetic energy, and diamond dust hardness is very high; Can resist the shear action of cavitation wear process backbone hard grit and the impact failure of cavitation erosion; Therefore, middle coating intermediate is to be used for recovering pump housing flow channel shape, the main coating of anti-cavitation wear; Add molybdenum bisuphide in the investment precoat, make coating surface become smooth selflubricatingpiston, eliminate water passage surface cavitation erosion source on the one hand, it is smooth and easy to make runner cross water on the other hand.
2, material therefor of the present invention is easy to get, and is with low cost, also applicable to the reparation of the anti-cavitation wear at the cavitation wear positions such as runner, spiral case and stator in power station, be coated with and protect.
3, the present invention repairs back water lift amount and surpasses specified 1.07 m through total pumping plant of doing determines that 1# machine 24SH-9 (adding) the water pump practical application effect of scrapping is remarkable in irrigated area, river, Jingtai
326.64% (referring to table 1) of/s.
Table 1
The specific embodiment
Embodiment 1Waste and old water pump reparation, be coated with maintaining method, may further comprise the steps:
⑴ preparation: take the insulation canopy earlier, eliminate rust until exposing fresh metal covering fully with the applicator surface of air compressor machine drive sand-blasting gun then the waste and old pump housing, last, make the waste and old pump housing reach 20 ~ 30 ℃ with being incubated in the canopy.
⑵ the cut water reparation of the waste and old pump housing: burn the old coating of removing the cut water damaged location with the acetylene burning torch, remove the cut water edge of damage, make it neat; Extract size, steel plate that shape is identical with the damage cut water, break into 45 ° of grooves,, shorten cut water length 4 ~ 30mm according to this pump characteristic and operating condition in the welding position, the cut water end to axle center and impeller near 3 ~ 18mm; The preheating welding position, making its temperature is 280 ~ 320 ℃, intermittently welds with pure nickel electrode, knock on the side weld limit, to eliminate temperature stress.
⑶ the pump housing of the waste and old pump housing and sealing ring faying face are repaired: on cleaning good pump seat, pump cover and sealing ring faying face, being coated with thickness equably is 0.2 ~ 0.4mm subbing; Then mend flat gap, cavitation erosion groove with the coating of flour filler again; Being coated with thickness at the sealing ring outer peripheral face then is 0.1 ~ 0.2mm butter, is put on the pump seat in placely together with macro-axis and impeller, puts pump cover; Open the face bolt in fastening, simultaneously frequent rotating joint; After the primary solidification, hang out macro-axis, remove the unnecessary coating of extruding; Use the acetone coating surface; After the whole polishings of coating surface one time, being coated with thickness is 0.2 ~ 0.4mm investment precoat, carries out pressing again; Repetition several to sealing ring and impeller do not have friction and get final product.
⑷ opening the gully of face in the waste and old pump housing repairs: the place, gully that between pump seat, pump cover and sealing ring three junction pumping chambers and suction chamber, forms; Brush thickness is 0.2 ~ 0.4mm subbing earlier; Fill up compacting with middle coating intermediate again; And push away flatly with the I-steel ruler that is heated to 100 ℃, brushing thickness at last is 0.2 ~ 0.4mm investment precoat; Solidify the back with oilstone be ground to in to open face smooth equally.
⑸ the local reinforcement of the waste and old pump housing: will clear up the good pumping chamber both sides and the surfaces coated subbing of pump cover, and arrange the MULTILAYER COMPOSITE reinforcement with high-strength carbon fibre then and get final product.
⑹ the runner of the waste and old pump housing is repaiied and is coated with: at first being coated with thickness equably at water passage surface is 0.2 ~ 0.4mm subbing, and smearing thickness is 0.2 ~ 40mm middle coating intermediate before subbing is uncured; Repair to the design flow road shape with hot trowel then, repair after 2 ~ 3 hours primary solidification; Be that 0.3 ~ 0.5mm investment precoat is evenly coated on the middle coating intermediate with thickness again; At last, the temperature of insulation canopy is risen to room temperature, after 24 hours temperature is increased to 20 ~ 40 ℃, curing through 24 hours after is again repaired faying face and to be got final product.
Embodiment 2Waste and old water pump reparation, be coated with maintaining method, may further comprise the steps:
⑴ preparation: take the insulation canopy earlier; Clean the greasy dirt on the waste and old pump housing with solvent acetone then; Secondly eliminate rust until exposing fresh metal covering fully with the applicator surface of air compressor machine drive sand-blasting gun to the waste and old pump housing, last, make in the waste and old pump housing and the insulation canopy to reach 20 ~ 30 ℃.
⑵ the cut water reparation of the waste and old pump housing: burn the old coating of removing the cut water damaged location with the acetylene burning torch, remove the cut water edge of damage, make it neat; Extract size, steel plate that shape is identical with the damage cut water, break into 45 ° of grooves,, shorten cut water length 4 ~ 30mm according to this pump characteristic and operating condition in the welding position, the cut water end to axle center and impeller near 3 ~ 18mm; The preheating welding position, making its temperature is 280 ~ 320 ℃, intermittently welds with pure nickel electrode, knock on the side weld limit, to eliminate temperature stress.
⑶ the pump housing of the waste and old pump housing and sealing ring faying face are repaired: on cleaning good pump seat, pump cover and sealing ring faying face, being coated with thickness equably is 0.2 ~ 0.4mm subbing; Then mend flat gap, cavitation erosion groove with the coating of flour filler again; Being coated with thickness at the sealing ring outer peripheral face then is 0.1 ~ 0.2mm butter, is put on the pump seat in placely together with macro-axis and impeller, puts pump cover; Open the face bolt in fastening, simultaneously frequent rotating joint; After the primary solidification, hang out macro-axis, remove the unnecessary coating of extruding; Use the acetone coating surface; After the whole polishings of coating surface one time, being coated with thickness is 0.2 ~ 0.4mm investment precoat, carries out pressing again; Repetition several to sealing ring and impeller do not have friction and get final product.
⑷ opening the gully of face in the waste and old pump housing repairs: the place, gully that between pump seat, pump cover and sealing ring three junction pumping chambers and suction chamber, forms; Brush thickness is 0.2 ~ 0.4mm subbing earlier; Fill up compacting with middle coating intermediate again; And push away flatly with the I-steel ruler that is heated to 100 ℃, brushing thickness at last is 0.2 ~ 0.4mm investment precoat; Solidify the back with oilstone be ground to in to open face smooth equally.
⑸ the local reinforcement of the waste and old pump housing: will clear up the good pumping chamber both sides and the surfaces coated subbing of pump cover, and arrange the MULTILAYER COMPOSITE reinforcement with high-strength carbon fibre then and get final product.
⑹ the runner of the waste and old pump housing is repaiied and is coated with: at first being coated with thickness equably at water passage surface is 0.2 ~ 0.4mm subbing, and smearing thickness is 0.2 ~ 40mm middle coating intermediate before subbing is uncured; Repair to the design flow road shape with hot trowel then, repair after 2 ~ 3 hours primary solidification; Be that 0.3 ~ 0.5mm investment precoat is evenly coated on the middle coating intermediate with thickness again; At last, the temperature of insulation canopy is risen to room temperature, after 24 hours temperature is increased to 20 ~ 40 ℃, curing through 24 hours after is again repaired faying face and to be got final product.
Above-mentioned
Embodiment 1 ~ 2In subbing among step ⑶, ⑷, ⑸ and the ⑹ all be by quality! ㎏) reach by the carboxyl of epoxy resin quality 12% or liquid hydroxyl butyronitrile, 0.3 ~ 0.7% catalyst, 9% diethylenetriamine, 15% alumina powder and 30% iron oxide red and mix than the epoxy resin that is 100%.
The coating of the flour filler among the step ⑶ is meant that the particle diameter that in subbing, adds 3 times of its quality is 100 purpose diamond dust.
Investment precoat among step ⑶, ⑷ and the ⑹ all is by quality! ㎏) than being 100% epoxy resin and mixing by the carboxyl of epoxy resin quality 12% or liquid hydroxyl butyronitrile, 0.3 ~ 0.7% catalyst, 9% diethylenetriamine and 25% molybdenum bisuphide.
Investment precoat among step ⑷ and the ⑹ all is by quality! ㎏) than being that 100% epoxy resin and the diamond dust that is 70 orders 300 ~ 500% by the carboxyl of epoxy resin quality 12% or liquid hydroxyl butyronitrile, 0.3 ~ 0.7% catalyst, 9% diethylenetriamine and particle diameter mix.
Catalyst among the step ⑺ is meant rare earth cerium oxide Ce
2O
3
Wherein: epoxy resin is bisphenol A type epoxy resin E44 (6101); Diamond dust is carborundum or alundum (Al.
Claims (9)
1. waste and old water pump reparation, be coated with maintaining method, may further comprise the steps:
⑴ preparation: take the insulation canopy earlier, eliminate rust until exposing fresh metal covering fully with the applicator surface of air compressor machine drive sand-blasting gun then the waste and old pump housing, last, make in the said waste and old pump housing and the said insulation canopy to reach 20 ~ 30 ℃;
⑵ the cut water reparation of the said waste and old pump housing: burn the old coating of removing the cut water damaged location with the acetylene burning torch, remove the cut water edge of damage, make it neat; Extract size, steel plate that shape is identical with the damage cut water, break into 45 ° of grooves,, shorten cut water length 4 ~ 30mm according to this pump characteristic and operating condition in the welding position, the cut water end to axle center and impeller near 3 ~ 18mm; The preheating welding position, making its temperature is 280 ~ 320 ℃, intermittently welds with pure nickel electrode, knock on the side weld limit, to eliminate temperature stress;
⑶ the pump housing of the said waste and old pump housing and sealing ring faying face are repaired: on cleaning good pump seat, pump cover and sealing ring faying face, being coated with thickness equably is 0.2 ~ 0.4mm subbing; Then mend flat gap, cavitation erosion groove with the coating of flour filler again; Being coated with thickness at the sealing ring outer peripheral face then is 0.1 ~ 0.2mm butter, is put on the pump seat in placely together with macro-axis and impeller, puts pump cover; Open the face bolt in fastening, simultaneously frequent rotating joint; After the primary solidification, hang out macro-axis, remove the unnecessary coating of extruding; Use the acetone coating surface; After the whole polishings of coating surface one time, being coated with thickness is 0.2 ~ 0.4mm investment precoat, carries out pressing again; Repetition several to sealing ring and impeller do not have friction and get final product;
⑷ opening the gully of face in the said waste and old pump housing repairs: the place, gully that between pump seat, pump cover and sealing ring three junction pumping chambers and suction chamber, forms; The said thickness of brush is 0.2 ~ 0.4mm subbing earlier; Fill up compacting with middle coating intermediate again; And push away flatly with the I-steel ruler that is heated to 100 ℃, brushing thickness at last is the said investment precoat of 0.2 ~ 0.4mm; Solidify the back with oilstone be ground to in to open face smooth equally;
⑸ the local reinforcement of the said waste and old pump housing: will clear up the good pumping chamber both sides and the said subbing of surfaces coated of pump cover, and arrange the MULTILAYER COMPOSITE reinforcement with high-strength carbon fibre then and get final product;
⑹ the runner of the said waste and old pump housing is repaiied and is coated with: at first being coated with thickness equably at water passage surface is the said subbing of 0.2 ~ 0.4mm, and smearing thickness is the said middle coating intermediate of 0.2 ~ 40mm before said subbing is uncured; Repair to the design flow road shape with hot trowel then, repair after 2 ~ 3 hours primary solidification; Be that 0.3 ~ 0.5mm investment precoat is evenly coated on the said middle coating intermediate with said thickness again; At last, the temperature of said insulation canopy is risen to room temperature, after 24 hours temperature is increased to 20 ~ 40 ℃, after 24 hours, solidify again, faying face is repaired got final product.
2. replace the ⑴ of step described in the claim 1 with following preparation method: take the insulation canopy earlier; Clean the greasy dirt on the waste and old pump housing with solvent acetone then; Secondly eliminate rust until exposing fresh metal covering fully with the applicator surface of air compressor machine drive sand-blasting gun to the said waste and old pump housing; At last, make in the said waste and old pump housing and the said insulation canopy and reach 20 ~ 30 ℃.
3. waste and old water pump reparation as claimed in claim 1, be coated with maintaining method, it is characterized in that: the subbing among said step ⑶, ⑷, ⑸ and the ⑹ all is to be 100% epoxy resin and to be mixed by the carboxyl of epoxy resin quality 12% or liquid hydroxyl butyronitrile, 0.3 ~ 0.7% catalyst, 9% diethylenetriamine, 15% alumina powder and 30% iron oxide red by mass ratio.
4. waste and old water pump reparation as claimed in claim 1, be coated with maintaining method, it is characterized in that: the coating of the flour filler among the said step ⑶ is meant that the particle diameter that in said subbing, adds 3 times of its quality is 100 purpose diamond dust.
5. waste and old water pump reparation as claimed in claim 1, be coated with maintaining method, it is characterized in that: the investment precoat among said step ⑶, ⑷ and the ⑹ all is to be 100% epoxy resin and to be mixed by the carboxyl of epoxy resin quality 12% or liquid hydroxyl butyronitrile, 0.3 ~ 0.7% catalyst, 9% diethylenetriamine and 25% molybdenum bisuphide by mass ratio.
6. waste and old water pump reparation as claimed in claim 1, be coated with maintaining method, it is characterized in that: the investment precoat among said step ⑷ and the ⑹ all is to be that 100% epoxy resin and the diamond dust that is 70 orders 300 ~ 500% by the carboxyl of epoxy resin quality 12% or liquid hydroxyl butyronitrile, 0.3 ~ 0.7% catalyst, 9% diethylenetriamine and particle diameter mix by mass ratio.
Like claim 3,5 or 6 described waste and old water pump reparations, be coated with maintaining method, it is characterized in that: the catalyst among the said step ⑺ is meant rare earth cerium oxide Ce
2O
3
Like claim 3,5 or 6 described waste and old water pump reparations, be coated with maintaining method, it is characterized in that: said epoxy resin is bisphenol A type epoxy resin E44 (6101).
Like claim 4 or 6 described waste and old water pump reparations, be coated with maintaining method, it is characterized in that: said diamond dust is carborundum or alundum (Al.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210029244 CN102527618B (en) | 2012-02-10 | 2012-02-10 | Waste water pump repairing and coating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210029244 CN102527618B (en) | 2012-02-10 | 2012-02-10 | Waste water pump repairing and coating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102527618A true CN102527618A (en) | 2012-07-04 |
| CN102527618B CN102527618B (en) | 2013-06-19 |
Family
ID=46336349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210029244 Expired - Fee Related CN102527618B (en) | 2012-02-10 | 2012-02-10 | Waste water pump repairing and coating method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102527618B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104858607A (en) * | 2015-04-24 | 2015-08-26 | 湘潭杰熙环境科技有限责任公司 | Full-repairing technology for housing of desulphurization circulating pump |
| CN110125608A (en) * | 2019-05-20 | 2019-08-16 | 马斯特模具（昆山）有限公司 | A kind of method for repairing and mending that interior heating flow distribution plate heater strip is exposed |
| CN112059544A (en) * | 2020-08-26 | 2020-12-11 | 王立民 | Energy-saving modification method for water pump |
| CN112295877A (en) * | 2020-10-23 | 2021-02-02 | 云南华电鲁地拉水电有限公司 | Method for preventing local cavitation of flow passage component of water turbine |
| CN114887861A (en) * | 2022-04-28 | 2022-08-12 | 玉溪大红山矿业有限公司 | Repairing material and repairing method for wear surface of inner wall of end cover at material inlet and outlet ends of ball mill |
| CN115716036A (en) * | 2022-10-25 | 2023-02-28 | 中国水利水电科学研究院 | Erosion-resistant protective coating structure for pump body of water pump in irrigation area and implementation method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005219025A (en) * | 2004-02-09 | 2005-08-18 | Dainippon Toryo Co Ltd | Old coating film reparing method |
| CN102218386A (en) * | 2010-04-14 | 2011-10-19 | 上海法赫桥梁隧道养护工程技术有限公司 | Protection method for rust removal, paint removal and anticorrosion of metal surface |
-
2012
- 2012-02-10 CN CN 201210029244 patent/CN102527618B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005219025A (en) * | 2004-02-09 | 2005-08-18 | Dainippon Toryo Co Ltd | Old coating film reparing method |
| CN102218386A (en) * | 2010-04-14 | 2011-10-19 | 上海法赫桥梁隧道养护工程技术有限公司 | Protection method for rust removal, paint removal and anticorrosion of metal surface |
Non-Patent Citations (2)
| Title |
|---|
| 王传豪: "《水泵环氧金钢砂涂护技术》", 《排灌机械》 * |
| 郑小松: "《利用环氧树脂复合涂料修复水泵过流部件气蚀麻面》", 《排灌机械》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104858607A (en) * | 2015-04-24 | 2015-08-26 | 湘潭杰熙环境科技有限责任公司 | Full-repairing technology for housing of desulphurization circulating pump |
| CN110125608A (en) * | 2019-05-20 | 2019-08-16 | 马斯特模具（昆山）有限公司 | A kind of method for repairing and mending that interior heating flow distribution plate heater strip is exposed |
| CN112059544A (en) * | 2020-08-26 | 2020-12-11 | 王立民 | Energy-saving modification method for water pump |
| CN112295877A (en) * | 2020-10-23 | 2021-02-02 | 云南华电鲁地拉水电有限公司 | Method for preventing local cavitation of flow passage component of water turbine |
| CN114887861A (en) * | 2022-04-28 | 2022-08-12 | 玉溪大红山矿业有限公司 | Repairing material and repairing method for wear surface of inner wall of end cover at material inlet and outlet ends of ball mill |
| CN115716036A (en) * | 2022-10-25 | 2023-02-28 | 中国水利水电科学研究院 | Erosion-resistant protective coating structure for pump body of water pump in irrigation area and implementation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102527618B (en) | 2013-06-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102527618B (en) | Waste water pump repairing and coating method | |
| CN103286516B (en) | A kind of hydraulic flow passage components cavitation corrosion complex repairation coating and preparation method thereof | |
| CN103805992B (en) | A kind of method that strengthens metal hydroturbine runner blade surface with electric spark deposition in conjunction with laser melting coating | |
| CN111019480B (en) | Abrasion-resistant surface treatment method for bottom ring of water turbine | |
| CN109233553A (en) | A kind of the abrasion repair coating and restorative procedure of desulfurization slurry pump | |
| CN105598655A (en) | Method for strengthening surface of metal turbine runner blade through combination of electric spark deposition and welding | |
| CN101503593A (en) | Anti-corrosive anti-abrasion coating powder for metal pipeline | |
| CN201211483Y (en) | Granule reinforcing gradient composite hammer head | |
| CN102284826A (en) | Repair process for cavitation corrosion of runner chamber of through-flow type water turbine | |
| CN2421463Y (en) | Combined wear-resisting residue-removing gate valve | |
| CN104162760A (en) | CFB boiler water cooling wall abraded area repairing method | |
| CN105598649A (en) | Method for strengthening surface of metal turbine runner through iron-based amorphous alloy stick | |
| CN106762808B (en) | High-flow high-lift yellow-leading centrifugal water pump wear-resistant opening ring and preparation method thereof | |
| CN105750809A (en) | Repairing technique for impeller of circulating pump | |
| CN102218567A (en) | Improved-alloy compound cutting disc blade | |
| CN105014260A (en) | Welding rod and welding method for repair welding of high-strength steel wheel | |
| CN203939641U (en) | A kind of Wet Parts of slurry pump | |
| CN211359161U (en) | Double-helix main shaft wear-resistant protection structure of mining vertical mill | |
| CN102020841A (en) | Nano-polyurethane (PU) elastomer, preparation method of PU elastomer and abrasion resisting method using PU elastomer | |
| CN107013048A (en) | A kind of derusting reinforcement means of flange electric pole | |
| CN103964794B (en) | Nano-enhanced wear-resistant corrosion-protection ceramic material, and preparation method and use method thereof | |
| CN113417857A (en) | Volute type large-flow high-lift wear-resistant middle-open type multi-stage pump | |
| CN104858607A (en) | Full-repairing technology for housing of desulphurization circulating pump | |
| CN111334791A (en) | Bionic design-based slurry pump blade surface non-uniform strengthening method | |
| CN215612013U (en) | Material throwing head of sand making machine with trapezoidal embedded structure made of hard alloy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20200210 |