CN107313976A - A kind of water pump turbine and its manufacturing process - Google Patents
A kind of water pump turbine and its manufacturing process Download PDFInfo
- Publication number
- CN107313976A CN107313976A CN201710529600.0A CN201710529600A CN107313976A CN 107313976 A CN107313976 A CN 107313976A CN 201710529600 A CN201710529600 A CN 201710529600A CN 107313976 A CN107313976 A CN 107313976A
- Authority
- CN
- China
- Prior art keywords
- turbine
- processing
- carried out
- axle sleeve
- water pump
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/28—Moulds for peculiarly-shaped castings for wheels, rolls, or rollers
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C23—COATING 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
- C23C—COATING 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/22—Electroplating: Baths therefor from solutions of zinc
Abstract
The invention discloses a kind of water pump turbine and its manufacturing process, including turbine axle sleeve, circular array is provided with six turbine leaves on the turbine axle sleeve outer wall, the turbine sleeve lining is provided with keyway, it is equipped with the turbine axle sleeve outer wall between turbine leaf on the first guiding gutter, the turbine leaf and is equipped with the second guiding gutter.The first guiding gutter on turbine axle sleeve outer wall of the present invention can cause liquid communication more smooth with the second guiding gutter on turbine leaf when turbine rotates, turbine can greatly improve the decay resistance of turbine via needing to carry out zinc-plated processing after heat treatment and polishing simultaneously after zinc-plated processing.
Description
Technical field
The present invention relates to turbine processing technique field, more particularly to a kind of water pump turbine and its manufacturing process.
Background technology
Turbine（Turbo）, it is the fan in the engine of automobile or aircraft, fuel vapour is blown into by using waste gas and drawn
Hold up, to improve the performance of engine.Turbine is a kind of rotary power machinery that the energy of flow working medium is converted to mechanical work.It
It is one of critical piece of aero-engine, gas turbine and steam turbine.
Turbine also has extensive purposes in water pump, if guiding gutter is provided with turbine blade face will cause turbine pair
The circulation effect of water more preferably, these be all need we note that place.
The content of the invention
The invention aims to solve shortcoming present in prior art, and a kind of shield steel pipe sheet for proposing and its
Processing technology.
To achieve these goals, present invention employs following technical scheme：
A kind of water pump turbine and, including turbine axle sleeve, circular array is provided with six turbine leaves, institute on the turbine axle sleeve outer wall
Turbine sleeve lining is stated provided with keyway.
It is preferred that, it is equipped with the first guiding gutter between turbine leaf on the turbine axle sleeve outer wall.
It is preferred that, it is equipped with the second guiding gutter on the turbine leaf.
A kind of manufacturing process of water pump turbine, comprises the following steps：
S1：Drawing according to required making turbine carries out the making of mould, and the casting of turbine, mould are carried out using plaster formulation mould
Tool inside surface roughness is not more than 3.2；
S2：Melting is carried out to the metal material of turbine, turbine is made using aluminum alloy materials, is that follow-up casting is got the raw materials ready, melting
Temperature control is between 1500-1800 DEG C；
S3：Dies cavity is cleared up, it is to avoid there is impurity to appear in dies cavity, carried out by the way of wind, by mould
Floating ash and impurity in tool are cleared up, and mould is heated, mold temperature is heated into more than 150 DEG C；
S4：Casting processing is carried out, the metallic solution of melting in S2 is poured into mouth by mould adds, and carries out the casting of turbine；
S4：The turbine of casting is carried out to go to touch processing, progress is gone by turbine progress cooling processing after touching, using the side of water cooling
Formula is cooled, and cooling processing can be completed after temperature is reduced to below 50 DEG C；
S5：Processing to pouring mouth, is cut to pouring mouth, and burnishing part is carried out to pouring mouth after mouth is cut off to pouring
Reason；
S6：The processing of keyway on turbine sleeve lining, carries out the processing of keyway by the way of broaching tool draw cut, keyway inwall
Roughness is not more than the second guiding gutter on 1.6, turbine leaf and poured with the use use of the first guiding gutter on turbine axle sleeve outer wall
The mode for building up type is carried out；
S7：Turbine is heat-treated, and turbine is made annealing treatment in Equipment for Heating Processing, improves the mechanical performance of turbine, whirlpool
After wheel annealing after insulation a period of time, carried out by the way of furnace cooling；
S8：Grinding process is carried out to turbine, grinding process is polished using sand paper, the turbine after polishing integrally goes out to release souls from purgatory
No more than 1.6；
S9：Zinc-plated processing is carried out to turbine in electroplate liquid, electroplating time is 20-30 minutes, is entered by the way of galvanizing
OK, the temperature of electroplate liquid is maintained between 80-95 DEG C when zinc-plated；
S10：Surface alkali cleaning after zinc-plated processing, turbine is placed in sodium hydroxide solution and cleaned, by surface impurity with
And oily waste degradation；
S11：Turbine after alkali cleaning is rinsed, drying and processing is carried out after turbine is rinsed can complete the processing of turbine.
It is preferred that, the sand paper mesh number in the step S8 is 800-1000 mesh.
It is preferred that, the sodium hydroxide solution is sodium hydroxide and water component ratio by weight is 1:The mixing of 15 proportionings
Liquid.
It is preferred that, the galvanizing flux is the aqueous slkali of zinc oxide, is sodium hydroxide, zinc oxide and water according to composition by weight ratio
For 10：1:100 proportionings are formed, and the pH value of galvanizing flux is between 10-12.
Compared with prior art, the beneficial effects of the invention are as follows：The first guiding gutter on turbine axle sleeve outer wall of the present invention with
The second guiding gutter on turbine leaf can cause liquid communication more smooth when turbine rotates, at the same turbine via heat treatment with
And need to carry out zinc-plated processing after polishing, the decay resistance of turbine can be greatly improved after zinc-plated processing.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is turbine axle sleeve structure schematic diagram of the present invention.
In figure：1 turbine axle sleeve, 11 keyways, 12 first guiding gutters, 2 turbine leaves, 21 second guiding gutters.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with specific embodiment, to this
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.
Embodiment 1
Circular array is provided with six turbine leaves 2 on a kind of water pump turbine, including turbine axle sleeve 1, the outer wall of turbine axle sleeve 1,
The inwall of turbine axle sleeve 1 is provided with keyway 11.
On the outer wall of turbine axle sleeve 1 the first guiding gutter 12 is equipped between turbine leaf 2.
The second guiding gutter 21 is equipped with the turbine leaf 2.
A kind of manufacturing process of water pump turbine, comprises the following steps：
S1：Drawing according to required making turbine carries out the making of mould, and the casting of turbine, mould are carried out using plaster formulation mould
Tool inside surface roughness is not more than 3.2；
S2：Melting is carried out to the metal material of turbine, turbine is made using aluminum alloy materials, is that follow-up casting is got the raw materials ready, melting
Temperature control is at 1500 DEG C；
S3：Dies cavity is cleared up, it is to avoid there is impurity to appear in dies cavity, carried out by the way of wind, by mould
Floating ash and impurity in tool are cleared up, and mould is heated, mold temperature is heated into more than 150 DEG C；
S4：Casting processing is carried out, the metallic solution of melting in S2 is poured into mouth by mould adds, and carries out the casting of turbine；
S4：The turbine of casting is carried out to go to touch processing, progress is gone by turbine progress cooling processing after touching, using the side of water cooling
Formula is cooled, and cooling processing can be completed after temperature is reduced to below 50 DEG C；
S5：Processing to pouring mouth, is cut to pouring mouth, and burnishing part is carried out to pouring mouth after mouth is cut off to pouring
Reason；
S6：The processing of keyway on turbine sleeve lining, carries out the processing of keyway by the way of broaching tool draw cut, keyway inwall
Roughness is not more than the second guiding gutter on 1.6, turbine leaf and poured with the use use of the first guiding gutter on turbine axle sleeve outer wall
The mode for building up type is carried out；
S7：Turbine is heat-treated, and turbine is made annealing treatment in Equipment for Heating Processing, improves the mechanical performance of turbine, whirlpool
After wheel annealing after insulation a period of time, carried out by the way of furnace cooling；
S8：Grinding process is carried out to turbine, grinding process is polished using sand paper, the turbine after polishing integrally goes out to release souls from purgatory
No more than 1.6；
S9：Zinc-plated processing is carried out to turbine in electroplate liquid, electroplating time is 20 minutes, is carried out by the way of galvanizing, is plated
The temperature of electroplate liquid is maintained at 80 DEG C during zinc；
S10：Surface alkali cleaning after zinc-plated processing, turbine is placed in sodium hydroxide solution and cleaned, by surface impurity with
And oily waste degradation；
S11：Turbine after alkali cleaning is rinsed, drying and processing is carried out after turbine is rinsed can complete the processing of turbine.
Sand paper mesh number in the step S8 is 800 mesh.The sodium hydroxide solution is sodium hydroxide and water group by weight
Part is than being 1:The mixed liquor of 15 proportionings.The galvanizing flux is the aqueous slkali of zinc oxide, be sodium hydroxide, zinc oxide and water by
It is 10 according to composition by weight ratio：1:100 proportionings are formed, and the pH value of galvanizing flux is 10.
Embodiment 2
Circular array is provided with six turbine leaves 2 on a kind of water pump turbine, including turbine axle sleeve 1, the outer wall of turbine axle sleeve 1,
The inwall of turbine axle sleeve 1 is provided with keyway 11.
On the outer wall of turbine axle sleeve 1 the first guiding gutter 12 is equipped between turbine leaf 2.
The second guiding gutter 21 is equipped with the turbine leaf 2.
A kind of manufacturing process of water pump turbine, comprises the following steps：
S1：Drawing according to required making turbine carries out the making of mould, and the casting of turbine, mould are carried out using plaster formulation mould
Tool inside surface roughness is not more than 3.2；
S2：Melting is carried out to the metal material of turbine, turbine is made using aluminum alloy materials, is that follow-up casting is got the raw materials ready, melting
Temperature control is between 1700 DEG C；
S3：Dies cavity is cleared up, it is to avoid there is impurity to appear in dies cavity, carried out by the way of wind, by mould
Floating ash and impurity in tool are cleared up, and mould is heated, mold temperature is heated into more than 150 DEG C；
S4：Casting processing is carried out, the metallic solution of melting in S2 is poured into mouth by mould adds, and carries out the casting of turbine；
S4：The turbine of casting is carried out to go to touch processing, progress is gone by turbine progress cooling processing after touching, using the side of water cooling
Formula is cooled, and cooling processing can be completed after temperature is reduced to below 50 DEG C；
S5：Processing to pouring mouth, is cut to pouring mouth, and burnishing part is carried out to pouring mouth after mouth is cut off to pouring
Reason；
S6：The processing of keyway on turbine sleeve lining, carries out the processing of keyway by the way of broaching tool draw cut, keyway inwall
Roughness is not more than the second guiding gutter on 1.6, turbine leaf and poured with the use use of the first guiding gutter on turbine axle sleeve outer wall
The mode for building up type is carried out；
S7：Turbine is heat-treated, and turbine is made annealing treatment in Equipment for Heating Processing, improves the mechanical performance of turbine, whirlpool
After wheel annealing after insulation a period of time, carried out by the way of furnace cooling；
S8：Grinding process is carried out to turbine, grinding process is polished using sand paper, the turbine after polishing integrally goes out to release souls from purgatory
No more than 1.6；
S9：Zinc-plated processing is carried out to turbine in electroplate liquid, electroplating time is 25 minutes, is carried out by the way of galvanizing, is plated
The temperature of electroplate liquid is maintained between 90 DEG C during zinc；
S10：Surface alkali cleaning after zinc-plated processing, turbine is placed in sodium hydroxide solution and cleaned, by surface impurity with
And oily waste degradation；
S11：Turbine after alkali cleaning is rinsed, drying and processing is carried out after turbine is rinsed can complete the processing of turbine.
Sand paper mesh number in the step S8 is 900 mesh.The sodium hydroxide solution is sodium hydroxide and water group by weight
Part is than being 1:The mixed liquor of 15 proportionings.The galvanizing flux is the aqueous slkali of zinc oxide, be sodium hydroxide, zinc oxide and water by
It is 10 according to composition by weight ratio：1:100 proportionings are formed, and the pH value of galvanizing flux is 11.
Embodiment 3
Circular array is provided with six turbine leaves 2 on a kind of water pump turbine, including turbine axle sleeve 1, the outer wall of turbine axle sleeve 1,
The inwall of turbine axle sleeve 1 is provided with keyway 11.
On the outer wall of turbine axle sleeve 1 the first guiding gutter 12 is equipped between turbine leaf 2.
The second guiding gutter 21 is equipped with the turbine leaf 2.
A kind of manufacturing process of water pump turbine, comprises the following steps：
S1：Drawing according to required making turbine carries out the making of mould, and the casting of turbine, mould are carried out using plaster formulation mould
Tool inside surface roughness is not more than 3.2；
S2：Melting is carried out to the metal material of turbine, turbine is made using aluminum alloy materials, is that follow-up casting is got the raw materials ready, melting
Temperature control is between 1800 DEG C；
S3：Dies cavity is cleared up, it is to avoid there is impurity to appear in dies cavity, carried out by the way of wind, by mould
Floating ash and impurity in tool are cleared up, and mould is heated, mold temperature is heated into more than 150 DEG C；
S4：Casting processing is carried out, the metallic solution of melting in S2 is poured into mouth by mould adds, and carries out the casting of turbine；
S4：The turbine of casting is carried out to go to touch processing, progress is gone by turbine progress cooling processing after touching, using the side of water cooling
Formula is cooled, and cooling processing can be completed after temperature is reduced to below 50 DEG C；
S5：Processing to pouring mouth, is cut to pouring mouth, and burnishing part is carried out to pouring mouth after mouth is cut off to pouring
Reason；
S6：The processing of keyway on turbine sleeve lining, carries out the processing of keyway by the way of broaching tool draw cut, keyway inwall
Roughness is not more than the second guiding gutter on 1.6, turbine leaf and poured with the use use of the first guiding gutter on turbine axle sleeve outer wall
The mode for building up type is carried out；
S7：Turbine is heat-treated, and turbine is made annealing treatment in Equipment for Heating Processing, improves the mechanical performance of turbine, whirlpool
After wheel annealing after insulation a period of time, carried out by the way of furnace cooling；
S8：Grinding process is carried out to turbine, grinding process is polished using sand paper, the turbine after polishing integrally goes out to release souls from purgatory
No more than 1.6；
S9：Zinc-plated processing is carried out to turbine in electroplate liquid, electroplating time is 30 minutes, is carried out by the way of galvanizing, is plated
The temperature of electroplate liquid is maintained between 95 DEG C during zinc；
S10：Surface alkali cleaning after zinc-plated processing, turbine is placed in sodium hydroxide solution and cleaned, by surface impurity with
And oily waste degradation；
S11：Turbine after alkali cleaning is rinsed, drying and processing is carried out after turbine is rinsed can complete the processing of turbine.
Sand paper mesh number in the step S8 is 1000 mesh.The sodium hydroxide solution is sodium hydroxide and water group by weight
Part is than being 1:The mixed liquor of 15 proportionings.The galvanizing flux is the aqueous slkali of zinc oxide, be sodium hydroxide, zinc oxide and water by
It is 10 according to composition by weight ratio：1:100 proportionings are formed, and the pH value of galvanizing flux is 12.
The first guiding gutter on turbine axle sleeve outer wall of the present invention can rotate with the second guiding gutter on turbine leaf in turbine
When cause liquid communication more smooth, while turbine after heat treatment and polishing via needing to carry out zinc-plated processing, zinc-plated processing
The decay resistance of turbine can be greatly improved afterwards.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (7)
1. a kind of water pump turbine, including turbine axle sleeve（1）, it is characterised in that：The turbine axle sleeve（1）Circular array on outer wall
Provided with six turbine leaves（2）, the turbine axle sleeve（1）Inwall is provided with keyway（11）.
2. a kind of water pump turbine according to claim 1, it is characterised in that：The turbine axle sleeve（1）It is located at whirlpool on outer wall
Wheel blade（2）Between be equipped with the first guiding gutter（12）.
3. a kind of water pump turbine according to claim 1, it is characterised in that：The turbine leaf（2）On be equipped with second and lead
Chute（21）.
4. a kind of manufacturing process of water pump turbine according to claim 1, it is characterised in that：Comprise the following steps：
S1：Drawing according to required making turbine carries out the making of mould, and the casting of turbine, mould are carried out using plaster formulation mould
Tool inside surface roughness is not more than 3.2；
S2：Melting is carried out to the metal material of turbine, turbine is made using aluminum alloy materials, is that follow-up casting is got the raw materials ready, melting
Temperature control is between 1500-1800 DEG C；
S3：Dies cavity is cleared up, it is to avoid there is impurity to appear in dies cavity, carried out by the way of wind, by mould
Floating ash and impurity in tool are cleared up, and mould is heated, mold temperature is heated into more than 150 DEG C；
S4：Casting processing is carried out, the metallic solution of melting in S2 is poured into mouth by mould adds, and carries out the casting of turbine；
S4：The turbine of casting is carried out to go to touch processing, progress is gone by turbine progress cooling processing after touching, using the side of water cooling
Formula is cooled, and cooling processing can be completed after temperature is reduced to below 50 DEG C；
S5：Processing to pouring mouth, is cut to pouring mouth, and burnishing part is carried out to pouring mouth after mouth is cut off to pouring
Reason；
S6：The processing of keyway on turbine sleeve lining, carries out the processing of keyway by the way of broaching tool draw cut, keyway inwall
Roughness is not more than the second guiding gutter on 1.6, turbine leaf and poured with the use use of the first guiding gutter on turbine axle sleeve outer wall
The mode for building up type is carried out；
S7：Turbine is heat-treated, and turbine is made annealing treatment in Equipment for Heating Processing, improves the mechanical performance of turbine, whirlpool
After wheel annealing after insulation a period of time, carried out by the way of furnace cooling；
S8：Grinding process is carried out to turbine, grinding process is polished using sand paper, the turbine after polishing integrally goes out to release souls from purgatory
No more than 1.6；
S9：Zinc-plated processing is carried out to turbine in electroplate liquid, electroplating time is 20-30 minutes, is entered by the way of galvanizing
OK, the temperature of electroplate liquid is maintained between 80-95 DEG C when zinc-plated；
S10：Surface alkali cleaning after zinc-plated processing, turbine is placed in sodium hydroxide solution and cleaned, by surface impurity with
And oily waste degradation；
S11：Turbine after alkali cleaning is rinsed, drying and processing is carried out after turbine is rinsed can complete the processing of turbine.
5. a kind of manufacturing process of water pump turbine according to claim 1, it is characterised in that：Sand paper in the step S8
Mesh number is 800-1000 mesh.
6. a kind of manufacturing process of water pump turbine according to claim 1, it is characterised in that：The sodium hydroxide solution is
Sodium hydroxide is 1 with water component ratio by weight:The mixed liquor of 15 proportionings.
7. a kind of manufacturing process of water pump turbine according to claim 1, it is characterised in that：The galvanizing flux is zinc oxide
Aqueous slkali, be that sodium hydroxide, zinc oxide and water are 10 according to composition by weight ratio：1:100 proportionings are formed, and the pH value of galvanizing flux
For between 10-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710529600.0A CN107313976A (en) | 2017-07-02 | 2017-07-02 | A kind of water pump turbine and its manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710529600.0A CN107313976A (en) | 2017-07-02 | 2017-07-02 | A kind of water pump turbine and its manufacturing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107313976A true CN107313976A (en) | 2017-11-03 |
Family
ID=60180554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710529600.0A Pending CN107313976A (en) | 2017-07-02 | 2017-07-02 | A kind of water pump turbine and its manufacturing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107313976A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0317729A1 (en) * | 1987-11-27 | 1989-05-31 | Günter Petz | Impeller for fans |
| JPH08247093A (en) * | 1995-03-06 | 1996-09-24 | Takasago Thermal Eng Co Ltd | Fan blade of centrifugal blower |
| CN2585994Y (en) * | 2002-12-18 | 2003-11-12 | 王志成 | Flabellum of air exhausting fan |
| CN205977799U (en) * | 2016-06-30 | 2017-02-22 | 安吉县工矿机械厂 | Big impeller |
| CN106493309A (en) * | 2016-11-24 | 2017-03-15 | 张红卫 | A kind of water pump turbine casting and annealing process |
-
2017
- 2017-07-02 CN CN201710529600.0A patent/CN107313976A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0317729A1 (en) * | 1987-11-27 | 1989-05-31 | Günter Petz | Impeller for fans |
| JPH08247093A (en) * | 1995-03-06 | 1996-09-24 | Takasago Thermal Eng Co Ltd | Fan blade of centrifugal blower |
| CN2585994Y (en) * | 2002-12-18 | 2003-11-12 | 王志成 | Flabellum of air exhausting fan |
| CN205977799U (en) * | 2016-06-30 | 2017-02-22 | 安吉县工矿机械厂 | Big impeller |
| CN106493309A (en) * | 2016-11-24 | 2017-03-15 | 张红卫 | A kind of water pump turbine casting and annealing process |
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Application publication date: 20171103 |