CN106181270A - The preparation method of pump for liquid salts combination type blade wheel - Google Patents
The preparation method of pump for liquid salts combination type blade wheel Download PDFInfo
- Publication number
- CN106181270A CN106181270A CN201610738665.1A CN201610738665A CN106181270A CN 106181270 A CN106181270 A CN 106181270A CN 201610738665 A CN201610738665 A CN 201610738665A CN 106181270 A CN106181270 A CN 106181270A
- Authority
- CN
- China
- Prior art keywords
- workpiece
- end cap
- pump
- nitride film
- preparation
- 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
Classifications
-
- 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
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/04—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass turbine or like blades from several pieces
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Physical Vapour Deposition (AREA)
Abstract
Disclosed by the invention is the preparation method of a kind of pump for liquid salts combination type blade wheel, described combination type blade wheel is by stainless steel impeller main body and the concentricity combination of rustless steel end cap, and brazed fixing connects and composes；Surface reconstruction layer, TiN film layer and Si it is laid with from the inside to the outside in impeller bodies and end cover surface3N4Silicon nitride film layer；Include successively with its preparation method selecting materials, forge, the process of heat treatment, machining, surface clean, surface reconstruction, coating film treatment, soldering are processed as principal character, have technical scheme the most thorough, easily-controllable simplicity, the features such as manufactured goods quality is good.
Description
Technical field
The present invention relates to the preparation method of a kind of pump for liquid salts combination type blade wheel, belong to mechanical pump preparing technical field.
Background technology
Instantly pump for liquid salts, in particular for the leaf of pump for liquid salts under the long-shaft liquid of solar light-heat power-generation fused salt circulation conveying
Wheel, is all the impeller of integral structure.
And described integral structure impeller, all use integral type foundry goods to be machined and prepare.
Because existing impeller does not has higher high temperature resistant, wear-resistant, antioxidation and anticorrosive function, so that it is
Reaching 600 DEG C through the operating temperature that is far from suitable, flow and flow velocity improve a lot, and the length of service is existing more than 25 years
For the technology requirement of solar energy thermal-power-generating pump for liquid salts, and drag the solar energy high temperature heat utilization especially solar energy all entered with day
The back leg of photo-thermal power generation cause fast development.
Summary of the invention
It is desirable to provide a kind of working surface plated film and possess high temperature resistant, wear-resistant, antioxidation and erosion-resisting molten
The preparation method of salt pump combination type blade wheel, with the impeller prepared with it, overcomes the deficiency of prior art, for solar energy high temperature
The lifting development of heat utilization cause provides equipment technology support.
The present invention realizes the technical scheme of its purpose:
The preparation method of a kind of pump for liquid salts combination type blade wheel, described impeller is forged by stainless steel forgings goods impeller bodies and rustless steel
Part goods end cap, concentricity combination and brazed fixing connect and compose；And on described impeller bodies and the surface of end cap, by interior extremely
It is laid with stainless steel surfaces reconstruction of layer, TiN titanium nitride film and Si successively outward3N4Silicon nitride film layer；The system of described combination type blade wheel
Preparation Method, comprises the following steps successively:
A, select materials；By production engineering specifications, choose the rustless steel blank needed for impeller bodies and end cap respectively；
B, forging；By 2 described rustless steel blanks, it is forged into the forging cake meeting technological requirement respectively；
C, heat treatment；Eliminate the internal stress of described forging cake by heat treatment and improve its crystalline structure；
D, machining；Use machining mode respectively by 2 forging cakes after heat treatment, be processed into and meet product design
The impeller bodies workpiece required and end cap workpiece；
E, surface clean；Use rustless steel cleanout fluid, remove impeller bodies workpiece and the oxide of end cap surface of the work and greasy dirt；
F, top layer reconstruction processing；In vacuum coating indoor employing high-energy ion bombardment mode, the impeller to cleaned process respectively
Bombardment is implemented on the top layer of bulk workpiece and end cap workpiece, is allowed to realize again cleaning, and removes the foreign particle on surface, changes
Its crystal structure and its compact crystallization degree of raising, and constitute stainless steel surfaces reconstruction of layer；
G, coating film treatment；Use electron beam evaporation plating mode, respectively first in impeller bodies workpiece and end cap surface of the work reconstruction of layer
On surface, plating cloth TiN titanium nitride film, again on TiN titanium nitride film surface after reaching process thickness, plating cloth meets technique
The Si of thickness requirement3N4Silicon nitride film layer, thus form stainless steel surfaces reconstruction of layer-TiN titanium nitride film-and Si3N4Nitridation
Silicon film sandwich diaphragm layer；
H, soldering process；First by the impeller bodies workpiece after coating film treatment and end cap workpiece concentricity combination interface
TiN titanium nitride film and Si3N4Silicon nitride film layer is removed clean, then combines interface at impeller bodies workpiece and end cap workpiece
Between, lay Ni-based hard solder paillon foil, then in vacuum furnace, make described brazing filler metal melts, and solder solution by heating
Sprawl between described combination interface, and interpenetrate fusion with rustless steel reconstruction of layer, then make impeller bodies workpiece by condensation
Concentricity with end cap workpiece fixing it is connected, thus prepares target product pump for liquid salts combination type blade wheel.
In technique scheme, the present invention also advocates:
Described rustless steel blank is OCr17Ni12Mo2N austenitic stainless steel round ingot.
Described coating film treatment, is while using electron beam evaporation plating mode, also uses the mode of ion beam assisted depositing,
And implement the coating film treatment that described 2 kinds of modes combine, due to the use of ion beam assisted depositing mode, and improve TiN, Si3N4
The solidity of film plating layer and intensity.
The thickness of described TiN titanium nitride film is in 1 ~ 3 μ m, and Si3N4The thickness of silicon nitride film layer is in 3 ~ 5 μm
In the range of.
Described electron beam evaporation plating adds the process strategies of ion beam assisted depositing,
A, evaporation work vacuum degree control 6 × 10-2Pa~5×10-3In the range of Pa, thank in standard and penetrate deposition running parameter bar
Under part, background gas pressure is 6 ~ 8 × 10-5Pa；
B, by evaporation expect TiN and Si3N4, leave in respectively in 2 earthenware snails, and the electron gun evaporation of described 2 kinds of evaporation material be the most not
Interfere and individually carry out；
C, when the thickness of TiN titanium nitride film reaches technological requirement, close TiN titanium nitride electron source, open Si3N4Silicon nitride
Earthenware snail, implements electron beam evaporation plating and adds ion assisted deposition Si3N4Silicon nitride, until Si3N4Silicon nitride film layer reaches process thickness；
D, ion beam outlet diameter control in the range of 180mm ± 5mm, and ion energy controls in the range of 700 ~ 1200KeV, from
Sub-beam current density controls at 100mA ~ 150mA/cm2In the range of, sputtering angle controls in the range of 30 ° ~ 45 °；
E, impeller bodies workpiece and end cap workpiece, be arranged on pivoted frame, and pivoted frame can make clockwise direction or square counterclockwise
To rotation, and the direction of ion beam current is adjustable, to guarantee plated film uniform in impeller bodies workpiece and end cap workpiece all directions
Cause.
It is vacuum brazing that described soldering processes, and its process strategies is, vacuum degree control is 5 × 10-2Pa~6×10-3Pa model
In enclosing, heating temperature controls in the range of 1120 DEG C ~ 1150 DEG C.
The trade mark of described solder is BNi-2, and the weight percentage of its each component is: Ni82.3%, Cr7%, Fe3%,
Si4.5%, B3.2%.
The furnace temp of described forging step b controls at about 1200 DEG C, and forging temperature controls at about 850 DEG C,
Forging platform and anvil face are preheated to 150 ~ 450 DEG C；Its forging deformation amount answers ＞ 12% and ＜ 20%.
Described heat treatment it or austenitic stainless steel solution heat treatment；It is to solid solubility temperature by described workpiece heat
1050 ~ 1100 DEG C, allow its all carbides and martensite all dissolve in and to be changed into austenite, be cooled to room temperature the soonest, be allowed to
While eliminating stress, keep single phase austenite tissue at normal temperatures.
And the impeller prepared by method prepared as above, for the circulation conveying of solar light-heat power-generation heat reservoir fused salt
Pump for liquid salts under long-shaft liquid.
After technical scheme given above is implemented in full, the technical scheme that preparation method of the present invention is had is reasonable
Thorough, easy controlled operation is easy, manufactured goods impeller is high temperature resistant, wear-resistant, antioxidation and corrosion resistance good, service life length etc.
Feature, is apparent from.
Accompanying drawing explanation
Fig. 1 is the schematic front view of the impeller bodies 1 of the present invention.1-1 shown in figure is blade；
Fig. 2 is the generalized section of Fig. 1；
Fig. 3 is the generalized section of the end cap 2 of the present invention；
Fig. 4 is the structural representation of manufactured goods pump for liquid salts combination type blade wheel of the present invention, and shown in figure, 6 is brazing layer；
Fig. 5 is impeller bodies 1 and end cap 2 superficial film structural representation.
Detailed description of the invention
Below in conjunction with accompanying drawing, by the description of detailed description of the invention, the invention will be further described.
A kind of typical detailed description of the invention, please join reading accompanying drawing 1 ~ 5.
The preparation method of a kind of pump for liquid salts combination type blade wheel, described impeller is by stainless steel forgings goods impeller bodies 1 and not
Rust steel forgings goods end cap 2, concentricity combination and brazed fixing connect and compose；And at described impeller bodies 1 and the table of end cap 2
Face, is laid with stainless steel surfaces reconstruction of layer 3, TiN titanium nitride film 4 and Si the most successively3N4Silicon nitride film layer 5；Described group
The preparation method of box-like impeller, comprises the following steps successively:
A, select materials；By production engineering specifications, choose the rustless steel blank needed for impeller bodies 1 and end cap 2 respectively；
B, forging；By 2 rustless steel blanks, it is forged into the forging cake meeting technological requirement respectively；
C, heat treatment；Eliminate the internal stress of described forging cake by heat treatment and improve its crystalline structure；
D, machining；Use machining mode respectively by 2 forging cakes after heat treatment, be processed into and meet product design
Impeller bodies 1 workpiece required and end cap 2 workpiece；
E, surface clean；Use rustless steel cleanout fluid, remove impeller bodies 1 workpiece and the oxide of end cap 2 surface of the work and oil
Dirty；
F, top layer reconstruction processing；In vacuum coating indoor employing high-energy ion bombardment mode, the impeller to cleaned process respectively
Bombardment is implemented on the top layer of main body 1 workpiece and end cap 2 workpiece, is allowed to realize again cleaning, and removes the foreign particle on surface, changes
Become its crystal structure and improve its compact crystallization degree, and constituting stainless steel surfaces reconstruction of layer 3；
G, coating film treatment；Use electron beam evaporation plating mode, the most first in impeller bodies 1 workpiece and end cap 2 surface of the work reconstruction of layer 3
Surface on, plate cloth TiN titanium nitride film 4, after reaching process thickness, then on TiN titanium nitride film 4 surface, plating cloth symbol
Close the Si that process thickness requires3N4Silicon nitride film layer 5, thus form stainless steel surfaces reconstruction of layer 3-TiN titanium nitride film 4-
Si3N4Silicon nitride film layer 5 sandwich diaphragm layer；
H, soldering process；First impeller bodies 1 workpiece after coating film treatment and end cap 2 workpiece are combined on interface
TiN titanium nitride film 4 and Si3N4Silicon nitride film layer 5 is removed totally, then combines docking at impeller bodies 1 workpiece and end cap 2 workpiece
Between face, lay Ni-based hard solder paillon foil, then in vacuum furnace, make described brazing filler metal melts by heating, and solder is molten
Liquid is sprawled between described combination interface, and mutually oozes with rustless steel reconstruction of layer 3 and melt conjunction, then makes impeller bodies 1 by condensation
Workpiece is fixing with the end cap 2 concentricity soldering of workpiece to be connected, thus prepares target product pump for liquid salts combination type blade wheel.
And described rustless steel blank is OCr17Ni12Mo2N austenitic stainless steel round ingot.
And described coating film treatment, it is while using electron beam evaporation plating mode, also uses the side of ion beam assisted depositing
Formula, and implement the coating film treatment that described 2 kinds of modes combine.
And the thickness of described TiN titanium nitride film 4 is in 1 ~ 3 μ m, and Si3N4The thickness of silicon nitride film layer 5 is at 3 ~ 5 μ
In the range of m.
And the process strategies that described electron beam evaporation plating adds ion beam assisted depositing is,
A, evaporation work vacuum degree control 6 × 10-2Pa~5×10-3In the range of Pa, thank in standard and penetrate deposition running parameter bar
Under part, background gas pressure is 6 ~ 8 × 10-5Pa；
B, by evaporation expect TiN and Si3N4, leave in respectively in 2 earthenware snails, and, the electron gun evaporation of described 2 kinds of evaporation material is the most not
Interfere and individually carry out；
C, when the thickness of TiN titanium nitride film 4 reaches technological requirement, close TiN titanium nitride electron source, open Si3N4Nitridation
Silicon earthenware snail, implements electron beam evaporation plating and adds ion assisted deposition Si3N4Silicon nitride, until Si3N4It is thick that silicon nitride film layer 5 reaches technique
Degree；
D, the ion beam outlet diameter of electron gun control in the range of 180mm ± 5mm, and ion energy controls at 700 ~ 1200KeV
In the range of, ion beam current density controls at 100mA ~ 150mA/cm2In the range of, sputtering angle controls in the range of 30 ° ~ 45 °；
E, impeller bodies 1 workpiece and end cap 2 workpiece, be arranged on pivoted frame, and pivoted frame can be made clockwise or counterclockwise
Direction rotates, and the direction of ion beam current is adjustable, to guarantee that in impeller bodies 1 workpiece and end cap 2 workpiece all directions, plated film is equal
Even unanimously.
And described soldering to process be vacuum brazing, its process strategies is, vacuum degree control is 5 × 10-2Pa~6×10-3Pa
In the range of, heating temperature controls in the range of 1120 DEG C ~ 1150 DEG C.
And the trade mark of described solder is BNi-2, the weight percentage of its each component is: Ni82.3%, Cr7%, Fe3%,
Si4.5%, B3.2%.
And the furnace temp of described forging step b controls at about 1200 DEG C, and forging temperature controls on 850 DEG C of left sides
The right side, forging platform and anvil face are preheated to 150 ~ 450 DEG C；Its forging deformation amount answers ＞ 12% and ＜ 20%.
And described heat treatment it or austenitic stainless steel solution heat treatment；It is to solid solubility temperature by described workpiece heat
1050 ~ 1100 DEG C, allow all carbides and martensite all dissolve in and to be changed into austenite, be cooled to room temperature the soonest, be allowed to
While eliminating stress, keep single phase austenite tissue at normal temperatures.
Combination type blade wheel prepared by preparation method as previously discussed, follows for solar light-heat power-generation heat reservoir fused salt
Pump for liquid salts under the long-shaft liquid of ring conveying.
In technique scheme, mechanical processing steps d of the present invention, it is proposed that use 5-axis machining center processing
Impeller bodies 1.
And it is to be manufactured especially exclusively for the application by the applicant that electron beam evaporation plating adds ion beam assisted depositing vacuum coating equipment
Special equipment.
In coating process, by the film thickness detector being placed near plating piece, the change of the thick degree of detection membrane and evaporation speed
Rate, Faraday cup is also disposed near plating piece, is used for detecting deposition process intermediate ion beam current density.
If impeller bodies 1 and end cap 2 are used mode that bolt or closing-up connects by bolt to replace soldering by the present invention
Connect, also possible.
After combination type blade wheel is successfully prepared, also includes ultrasonic inspection and remove soldering overlap step.Qualified through inspection
After, a fire-resistant oxidation resistant self-lubricating knockdown pump for liquid salts combination type blade wheel can come into operation.
Preparation method of the present invention, by the continuous trail run of some months, its effect makes us being satisfied with very much.Its goods
Combination type blade wheel ruggedness experimental result shows, under the conditions of 500 cold cycling, i.e. works 7 hours, stops transport 1 hour, repeatedly
Run 500 times, do not find that impeller has any damage phenomenon.Experiment is still in proceeding.Estimating according to expert, it uses year
Limit can meet or exceed the generally acknowledged validity period of solar energy thermal-power-generating equipment, has significant technical economic benefit, it is achieved that this
Purpose desired by invention.
Claims (10)
1. a preparation method for pump for liquid salts combination type blade wheel, described impeller is by stainless steel forgings goods impeller bodies (1) and not
Rust steel forgings goods end cap (2), concentricity combination and brazed fixing connect and compose；And at described impeller bodies (1) and end cap
(2) surface, is laid with stainless steel surfaces reconstruction of layer (3), TiN titanium nitride film (4) and Si the most successively3N4Silicon nitride
Film layer (5)；It is characterized in that: the preparation method of described combination type blade wheel, comprise the following steps successively:
A, select materials；By production engineering specifications, choose the rustless steel blank needed for impeller bodies (1) and end cap (2) respectively；
B, forging；By 2 rustless steel blanks, it is forged into the forging cake meeting technological requirement respectively；
C, heat treatment；Eliminate the internal stress of described forging cake by heat treatment and improve its crystalline structure；
D, machining；Use machining mode respectively by 2 forging cakes after heat treatment, be processed into and meet product design
Impeller bodies (1) workpiece required and end cap (2) workpiece；
E, surface clean；Use rustless steel cleanout fluid, remove impeller bodies (1) workpiece and the oxide of end cap (2) surface of the work
And greasy dirt；
F, top layer reconstruction processing；In vacuum coating indoor employing high-energy ion bombardment mode, the impeller to cleaned process respectively
Bombardment is implemented on the top layer of main body (1) workpiece and end cap (2) workpiece, is allowed to realize again cleaning, and removes the impurity grain on surface
Son, and change its crystal structure and improve its compact crystallization degree, and constitute stainless steel surfaces reconstruction of layer (3)；
G, coating film treatment；Use electron beam evaporation plating mode, the most first at impeller bodies (1) workpiece and end cap (2) surface of the work weight
On the surface of structure layer (3), plating cloth TiN titanium nitride film (4), again at TiN titanium nitride film (4) table after reaching process thickness
Face, plating cloth meets the Si of process thickness requirement3N4Silicon nitride film layer (5), thus form stainless steel surfaces reconstruction of layer (3)-TiN nitrogen
Change titanium film layer (4)-Si3N4Silicon nitride film layer (5) sandwich diaphragm layer；
H, soldering process；First impeller bodies (1) workpiece after coating film treatment and end cap (2) workpiece are combined on interface
TiN titanium nitride film (4) and Si3N4Silicon nitride film layer (5) is removed clean, then in impeller bodies (1) workpiece and end cap (2) work
Between part combination interface, lay Ni-based hard solder paillon foil, then in vacuum furnace, make described solder melt by heating
Change, and solder solution is sprawled between described combination interface, and interpenetrate fusion with rustless steel reconstruction of layer (3), then by cold
Solidifying make that impeller bodies (1) workpiece and the concentricity soldering of end cap (2) workpiece are fixing to be connected, thus prepared target product pump for liquid salts combines
Formula impeller.
2. the preparation method of pump for liquid salts combination type blade wheel as claimed in claim 1, it is characterised in that: described rustless steel blank is
OCr17Ni12Mo2N austenitic stainless steel round ingot.
3. the preparation method of pump for liquid salts combination type blade wheel as claimed in claim 1, it is characterised in that: described coating film treatment, be
While using electron beam evaporation plating mode, also use the mode of ion beam assisted depositing, and implement what described 2 kinds of modes combined
Coating film treatment.
4. the preparation method of pump for liquid salts combination type blade wheel as claimed in claim 1, it is characterised in that: described TiN titanium nitride film
The thickness of layer (4) is in 1 ~ 3 μ m, and Si3N4The thickness of silicon nitride film layer (5) is in the range of 3 ~ 5 μm.
5. the preparation method of pump for liquid salts combination type blade wheel as claimed in claim 3, it is characterised in that: described electron beam evaporation plating adds
The process strategies of ion beam assisted depositing is,
A, evaporation work vacuum degree control 6 × 10-2Pa~5×10-3In the range of Pa, deposit running parameter bar in standard sputter
Under part, background gas pressure is 6 ~ 8 × 10-5Pa；
B, by evaporation expect TiN and Si3N4, leave in respectively in 2 earthenware snails, and the electron gun evaporation of described 2 kinds of evaporation material do not done
Relate to and individually carry out；
C, when the thickness of TiN titanium nitride film (4) reaches technological requirement, close TiN titanium nitride electron source, open Si3N4Nitridation
Silicon earthenware snail, implements electron beam evaporation plating and adds ion assisted deposition Si3N4Silicon nitride, until Si3N4Silicon nitride film layer (5) reaches technique
Thickness；
D, ion beam outlet diameter control in the range of 180mm ± 5mm, and ion energy controls in the range of 700 ~ 1200KeV, from
Sub-beam current density controls at 100mA ~ 150mA/cm2In the range of, sputtering angle controls in the range of 30 ° ~ 45 °；
E, impeller bodies (1) workpiece and end cap (2) workpiece, be arranged on pivoted frame, and pivoted frame can be made clockwise or inverse
Clockwise rotates, and the direction of ion beam current is adjustable, to guarantee impeller bodies (1) workpiece and end cap (2) workpiece all directions
Upper plated film uniformity.
6. the preparation method of pump for liquid salts combination type blade wheel as claimed in claim 1, it is characterised in that: it is true that described soldering processes
Empty soldering, its process strategies is, vacuum degree control is 5 × 10-2Pa~6×10-3In the range of Pa, heating temperature controls
In the range of 1120 DEG C ~ 1150 DEG C.
7. the preparation method of pump for liquid salts combination type blade wheel as claimed in claim 6, it is characterised in that: the trade mark of described solder is
BNi-2, the weight percentage of its each component is: Ni82.3%, Cr7%, Fe3%, Si4.5%, B3.2%.
8. the preparation method of pump for liquid salts combination type blade wheel as claimed in claim 1, it is characterised in that: described forging step b
Furnace temp controls at about 1200 DEG C, and forging temperature controls at about 850 DEG C, and forging platform and anvil face be preheated to 150 ~
450℃；Its forging deformation amount answers ＞ 12% and ＜ 20%.
9. the preparation method of pump for liquid salts combination type blade wheel as claimed in claim 1, it is characterised in that: described heat treatment it still
Austenitic stainless steel solution heat treatment；It is to solid solubility temperature 1050 ~ 1100 DEG C by described workpiece heat, allow all carbides and
Martensite all dissolves in and is changed into austenite, is cooled to room temperature the soonest, is allowed to, while eliminating stress, keep at normal temperatures
Single phase austenite tissue.
10. the impeller as prepared by one of claim 1 to 9, for the circulation conveying of solar light-heat power-generation heat reservoir fused salt
Long-shaft liquid under pump for liquid salts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610738665.1A CN106181270B (en) | 2016-08-26 | 2016-08-26 | The preparation method of pump for liquid salts combination type blade wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610738665.1A CN106181270B (en) | 2016-08-26 | 2016-08-26 | The preparation method of pump for liquid salts combination type blade wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106181270A true CN106181270A (en) | 2016-12-07 |
| CN106181270B CN106181270B (en) | 2018-06-08 |
Family
ID=57526773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610738665.1A Active CN106181270B (en) | 2016-08-26 | 2016-08-26 | The preparation method of pump for liquid salts combination type blade wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106181270B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101406977A (en) * | 2008-11-25 | 2009-04-15 | 北京二七轨道交通装备有限责任公司 | Vacuum brazing method for pump impeller |
| CN101793264A (en) * | 2010-04-28 | 2010-08-04 | 自贡市红旗泵业密封件制造有限公司 | Method for manufacturing impeller of desulphurization circulating pump |
| KR20130033718A (en) * | 2011-09-27 | 2013-04-04 | 삼성테크윈 주식회사 | Joining structure of rotation part of rotary machine and method for joining rotation part of rotary machine |
| CN103161733A (en) * | 2013-03-15 | 2013-06-19 | 鲁东大学 | Ti / TiCrN nanometer multilayer coating impeller and preparation method thereof |
| CN103659201A (en) * | 2013-12-15 | 2014-03-26 | 无锡透平叶片有限公司 | Machining technology of turbine blade with water corrosion prevention achieved by means of laser cladding |
| CN103753154A (en) * | 2014-01-23 | 2014-04-30 | 浩溪机械(上海)有限公司 | Method for machining stainless steel sewage pump impeller |
| CN104879316A (en) * | 2015-05-14 | 2015-09-02 | 江苏大学 | Stainless steel pulse-welded centrifugal pump impeller and improved welding method thereof |
-
2016
- 2016-08-26 CN CN201610738665.1A patent/CN106181270B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101406977A (en) * | 2008-11-25 | 2009-04-15 | 北京二七轨道交通装备有限责任公司 | Vacuum brazing method for pump impeller |
| CN101793264A (en) * | 2010-04-28 | 2010-08-04 | 自贡市红旗泵业密封件制造有限公司 | Method for manufacturing impeller of desulphurization circulating pump |
| KR20130033718A (en) * | 2011-09-27 | 2013-04-04 | 삼성테크윈 주식회사 | Joining structure of rotation part of rotary machine and method for joining rotation part of rotary machine |
| CN103161733A (en) * | 2013-03-15 | 2013-06-19 | 鲁东大学 | Ti / TiCrN nanometer multilayer coating impeller and preparation method thereof |
| CN103659201A (en) * | 2013-12-15 | 2014-03-26 | 无锡透平叶片有限公司 | Machining technology of turbine blade with water corrosion prevention achieved by means of laser cladding |
| CN103753154A (en) * | 2014-01-23 | 2014-04-30 | 浩溪机械(上海)有限公司 | Method for machining stainless steel sewage pump impeller |
| CN104879316A (en) * | 2015-05-14 | 2015-09-02 | 江苏大学 | Stainless steel pulse-welded centrifugal pump impeller and improved welding method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106181270B (en) | 2018-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6276883B2 (en) | Method for improving hot workability of metal alloys | |
| CN102465294B (en) | Method for carrying out laser-cladding on high-hardness nickel-based alloy material in large area | |
| Desale et al. | Erosion wear behavior of laser clad surfaces of low carbon austenitic steel | |
| CN105671545B (en) | A kind of single-phase high-entropy alloy coating of high rigidity and its preparation method and application | |
| CN110117788A (en) | A kind of preparation method of CoCrFeMnNi high-entropy alloy cladding layer | |
| EP2938456A1 (en) | Method for regenerating and/or increasing the durability of a mill roll | |
| CN107159868A (en) | A kind of steel wear-resistant copper alloy composite board, its preparation facilities and preparation method | |
| CN101613852B (en) | Composite structure coating and spraying method thereof | |
| CN106350761B (en) | It is a kind of based on synchronizing the laser cladding layer preparation method rolled | |
| TW201900899A (en) | Molten metal plating bath member | |
| Atabaki et al. | Transient liquid phase diffusion brazing of stainless steel 304 | |
| CN103194749A (en) | Method for preparing heat and wear resistant alloy coat on surface of roll gang | |
| Ur Rahman et al. | An overview: Laser-based additive manufacturing for high temperature tribology | |
| CN106181270B (en) | The preparation method of pump for liquid salts combination type blade wheel | |
| JPH0778273B2 (en) | Wing member surface treatment method | |
| JP2019502820A (en) | Metal coating method for steel plate and metal coated steel plate manufactured using the same | |
| CN102383127A (en) | Compound process method for preparing laser modified layer on surface of monel alloy | |
| CN106270461A (en) | A kind of synthesis technique of wearing composite material | |
| CN102134694B (en) | Preparation method of high temperature chlorine corrosion-resistant powder core silk material and melting and coating layer | |
| CN209067537U (en) | A kind of pump for liquid salts wear ring | |
| Rao et al. | Research and Development Status of Laser Cladding on Stainless Steel Alloys: A Review | |
| Boegelein et al. | Selective laser melting of oxide dispersion strengthened steels | |
| JP6809184B2 (en) | Method of forming a discharge treatment film | |
| JPS60121278A (en) | Surface treatment of thick steel member | |
| Nath et al. | Laser rapid manufacturing at the raja ramanna centre for advanced technology, India |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |