CN109578322A - A kind of wear resistant corrosion resistant centrifugation impeller of pump - Google Patents
A kind of wear resistant corrosion resistant centrifugation impeller of pump Download PDFInfo
- Publication number
- CN109578322A CN109578322A CN201811629876.7A CN201811629876A CN109578322A CN 109578322 A CN109578322 A CN 109578322A CN 201811629876 A CN201811629876 A CN 201811629876A CN 109578322 A CN109578322 A CN 109578322A
- Authority
- CN
- China
- Prior art keywords
- resistant
- wear
- corrosion
- blade
- wheel disc
- 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
Links
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
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2205—Conventional flow pattern
- F04D29/2222—Construction and assembly
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/56—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.7% by weight of carbon
-
- 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
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
-
- 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
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2261—Rotors specially for centrifugal pumps with special measures
- F04D29/2294—Rotors specially for centrifugal pumps with special measures for protection, e.g. against abrasion
-
- 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
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/24—Vanes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention relates to a kind of wear resistant corrosion resistants to be centrifuged impeller of pump, including blade, wheel disc, front shroud and back shroud, blade is sheathed on the periphery of wheel disc, the root of front shroud and back shroud is fixedly mounted on wheel disc, and the plate face of front shroud and back shroud is covered on two middle side parts of blade respectively, front shroud and back shroud can play the role of reinforcement to blade, the wheel disc, front shroud and back shroud are all made of wear resistant alloy material and are fabricated, the blade is made using thyrite, in blade, wheel disc, the outer surface of front shroud and back shroud is covered with one layer of corrosion-resistant finishes.Simple and reasonable, easily fabricated, the operation is stable of this centrifugal pump impeller, and there is excellent wear-resistant and corrosion resistance, long service life.
Description
Technical field
The present invention relates to centrifugal pumping apparatus technical field more particularly to a kind of anti abrasive impellers for centrifugal pump.
Background technique
Centrifugal pump is widely used in chemical industry production, it is the pump for carrying out liquid by the centrifugal force generated when impeller rotation
Valve, it can be seen that impeller is the core building block of centrifugal pump, and the quality of impeller determines the service performance and use of centrifugal pump
Service life.The slurries that centrifugal pump is conveyed in the production environment of chemical industry there are very strong abrasion and corrosivity, impeller be by
The part that slurries abrasion and vertical view are most concentrated.Traditional centrifugal pump impeller uses material for alloy cast iron, ceramics and polyurethane etc.,
Wherein, alloy cast iron impeller abrasion-proof is poor, and service life is shorter, and ceramic impeller is light-weight, and wearability is also compared with alloy cast iron
Impeller it is strong, however since ceramics belong to brittle medium, be easy to be hit in installation and use process and fracture report occurs
Useless, the wearability and corrosion resistance of polyurethane impeller are good compared with the above two impeller, however polyurethane impeller exists greatly in slurries
When the medium of particle, it can will be scrapped by tearing in blocks because impeller is impacted by high stress.It can be seen that currently on the market from
Heart pump blade wheel structure and material are unable to satisfy the property in chemical industry production to its wearability, corrosion resistance and workability etc.
It can require, therefore need to research and develop a kind of impeller with stronger abrasion resistance properties to meet the actual needs of chemical industry production.
Summary of the invention
A kind of the purpose of the present invention is to provide structures anti abrasive centrifugal pump leaf simple, at low cost and easily manufactured
Wheel.
To achieve the goals above, the technical solution adopted by the present invention is a kind of wear resistant corrosion resistant centrifugation impeller of pump, packet
Blade, wheel disc, front shroud and back shroud are included, blade is sheathed on the periphery of wheel disc, the root fixed installation of front shroud and back shroud
On wheel disc, and the plate face of front shroud and back shroud is covered on two middle side parts of blade respectively, and front shroud and back shroud can be right
Blade plays the role of reinforcement, and the wheel disc, front shroud and back shroud are all made of wear resistant alloy material and are fabricated, the blade
Be made using thyrite, the outer surface of blade, wheel disc, front shroud and back shroud be covered with one layer it is corrosion-resistant
Coating.
As an improvement of the present invention, the wheel disc, front shroud and back shroud are wear-resisting using nickel-chrome-molybdenum alloy cast iron
Any one of material, chromium carbide alloy wear-resistant material, nickel tungsten wear-resistant material and diamondite wear-resistant material production and
At.
As an improvement of the present invention, the wheel disc, front shroud and back shroud are wear-resisting using nickel-chrome-molybdenum alloy cast iron
Material is made.
As an improvement of the present invention, the constituent that the nickel-chrome-molybdenum alloy cast iron wear-resistant material includes are as follows: with matter
Measure score meter, iron: 70-90%, nickel: 0.01-0.05%, chromium: 0.6-1.5%, molybdenum: 0.01-0.05%, carbon: 3-5%, manganese: 0.5-
1.5%, silicon: 0.5-1.5%.
As an improvement of the present invention, the corrosion-resistant finishes uses polyflon or perfluoroethylene-propylene
Resin even application forms.
As an improvement of the present invention, the corrosion-resistant finishes for being set to wheel disc, front shroud and back shroud outer surface uses
Exhaustive fluorinated ethylene propylene even application forms, corrosion-resistant finishes with a thickness of 3-5mm.
As an improvement of the present invention, the corrosion-resistant finishes for being set to blade outer surface is equal using polyflon
It is even to spray, corrosion-resistant finishes with a thickness of 2-3mm.
Compared with the existing technology, centrifugal pump impeller overall construction design of the invention is ingenious, structurally reasonable stabilization, cost
It is low, it is easily fabricated, it is covered in two middle side parts of blade by using front shroud and back shroud, plays the role of reinforcement to blade,
The intensity and stiffness of ceramic blade are improved, effectively enhances the impact resistance of blade, and due to using wear resistant alloy material
Manufacture wheel disc, front shroud and back shroud, effectively enhance the abrasion resistance properties of impeller, at the same be further disposed upon blade, wheel disc,
Front shroud and the anti-corrosion layer of back shroud outer surface substantially increase the corrosion resistance of impeller, the overall structure leakproofness of impeller
Can be tightly reliable, the operation is stable, long service life.
Specific embodiment
In order to deepen the understanding of the present invention and understanding, the invention will be further described combined with specific embodiments below and
It introduces.
Embodiment 1
A kind of wear resistant corrosion resistant centrifugation impeller of pump, including blade, wheel disc, front shroud and back shroud, blade are sheathed on outside wheel disc
In the mounting groove in week, the root of front shroud and back shroud is threadably secured in the mounting base being mounted on wheel disc, and preceding
The plate face of cover board and back shroud is covered on two middle side parts of blade respectively, and front shroud and back shroud can play reinforcement to blade
Effect, can improve the intensity of blade, so that it is effective against bulky grain medium in slurries to the percussion of blade, the wheel disc,
Front shroud and back shroud are all made of wear resistant alloy material and are fabricated, and the blade is made using thyrite,
Ceramic blade can anticorrosion, be covered with one layer of corrosion-resistant finishes in the outer surface of blade, wheel disc, front shroud and back shroud.
Wherein, the wheel disc, front shroud and back shroud are resistance to using nickel-chrome-molybdenum alloy cast iron wear-resistant material, chromium carbide alloy
Any one of mill material, nickel tungsten wear-resistant material and diamondite wear-resistant material are made.Preferably, using nickel chromium triangle
Molybdenum alloy cast iron wear-resistant material makes wheel disc, front shroud and the back shroud of impeller, specifically, the nickel-chrome-molybdenum alloy cast iron is wear-resisting
The constituent that material includes are as follows: based on mass fraction, iron: 70-90%, nickel: 0.01-0.05%, chromium: 0.6-1.5%, molybdenum:
0.01-0.05%, carbon: 3-5%, manganese: 0.5-1.5%, silicon: 0.5-1.5%.As it can be seen that having used a small amount of nickel in the material component
Chrome molybdenum, while manganese and silicon ingredient will be added, so that the working surface hardness of blade obtained up to HRC55-60, greatly strengthens
The intensity of blade improves the service performance and service life of impeller.
In addition, the corrosion-resistant finishes is formed using polyflon or exhaustive fluorinated ethylene propylene even application.
Wherein, the corrosion-resistant finishes of wheel disc, front shroud and back shroud outer surface is set to using exhaustive fluorinated ethylene propylene even application
Form, corrosion-resistant finishes with a thickness of 3-5mm.And the corrosion-resistant finishes for being set to blade outer surface then uses polytetrafluoroethylene (PTFE) tree
Rouge even application forms, corrosion-resistant finishes with a thickness of 2-3mm.The corrosion resistance of exhaustive fluorinated ethylene propylene is better than polytetrafluoro
Therefore the corrosion resistance of vinyl is adopted wheel disc, front shroud and back shroud outer surface that wear resistant alloy material is fabricated
The anti-corrosion layer that a layer thickness is 3-5mm is formed with exhaustive fluorinated ethylene propylene even application, is incorporated into ceramic blade outer surface
The anti-corrosion layer that the polyflon even application used forms a layer thickness as 2-3mm, can effectively improve centrifugal pump leaf
The corrosion resistance of wheel, while the corrosion-resistant service life of impeller can be also balanced, production cost is reduced, and realize preferable corrosion resistant
Lose effect.
Embodiment 2
A kind of wear resistant corrosion resistant centrifugation impeller of pump, including blade, wheel disc, front shroud and back shroud, blade are sheathed on outside wheel disc
In the mounting groove in week, the root of front shroud and back shroud is threadably secured in the mounting base being mounted on wheel disc, and preceding
The plate face of cover board and back shroud is covered on two middle side parts of blade respectively, and front shroud and back shroud can play reinforcement to blade
Effect, can improve the intensity of blade, so that it is effective against bulky grain medium in slurries to the percussion of blade, the wheel disc,
Front shroud and back shroud are all made of wear resistant alloy material and are fabricated, and the blade is made using thyrite,
Ceramic blade can anticorrosion, be covered with one layer of corrosion-resistant finishes in the outer surface of blade, wheel disc, front shroud and back shroud.
Wherein, using wheel disc, front shroud and the back shroud of nickel-chrome-molybdenum alloy cast iron wear-resistant material production impeller, specifically,
The constituent that the nickel-chrome-molybdenum alloy cast iron wear-resistant material includes are as follows: based on mass fraction, iron: 70-90%, nickel: 0.01-
0.05%, chromium: 0.6-1.5%, molybdenum: 0.01-0.05%, carbon: 3-5%, manganese: 0.5-1.5%, silicon: 0.5-1.5%.As it can be seen that in the material
A small amount of Ni-Cr-Mo has been used in component, while manganese and silicon ingredient will be added, so that the working surface hardness of blade obtained can
Up to HRC55-60, the intensity of blade is greatly strengthened, improves the service performance and service life of impeller.
In addition, the corrosion-resistant finishes is formed using polyflon or exhaustive fluorinated ethylene propylene even application.
Wherein, the corrosion-resistant finishes of wheel disc, front shroud and back shroud outer surface is set to using exhaustive fluorinated ethylene propylene even application
Form, corrosion-resistant finishes with a thickness of 3-5mm.And the corrosion-resistant finishes for being set to blade outer surface then uses polytetrafluoroethylene (PTFE) tree
Rouge even application forms, corrosion-resistant finishes with a thickness of 2-3mm.The corrosion resistance of exhaustive fluorinated ethylene propylene is better than polytetrafluoro
Therefore the corrosion resistance of vinyl is adopted wheel disc, front shroud and back shroud outer surface that wear resistant alloy material is fabricated
The anti-corrosion layer that a layer thickness is 3-5mm is formed with exhaustive fluorinated ethylene propylene even application, is incorporated into ceramic blade outer surface
The anti-corrosion layer that the polyflon even application used forms a layer thickness as 2-3mm, can effectively improve centrifugal pump leaf
The corrosion resistance of wheel, while the corrosion-resistant service life of impeller can be also balanced, production cost is reduced, and realize preferable corrosion resistant
Lose effect.
The technical means disclosed in the embodiments of the present invention is not limited only to technological means disclosed in above embodiment, further includes
Technical solution consisting of any combination of the above technical features.It should be pointed out that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (7)
1. a kind of wear resistant corrosion resistant is centrifuged impeller of pump, it is characterised in that: including blade, wheel disc, front shroud and back shroud, blade
It is sheathed on the periphery of wheel disc, the root of front shroud and back shroud is fixedly mounted on wheel disc, and the plate face of front shroud and back shroud
It is covered on two middle side parts of blade respectively, front shroud and back shroud can play the role of reinforcement, the wheel disc, front cover to blade
Plate and back shroud are all made of wear resistant alloy material and are fabricated, and the blade is made using thyrite, in leaf
Piece, wheel disc, front shroud and back shroud outer surface be covered with one layer of corrosion-resistant finishes.
2. a kind of wear resistant corrosion resistant as described in claim 1 is centrifuged impeller of pump, which is characterized in that the wheel disc, front shroud
It is using nickel-chrome-molybdenum alloy cast iron wear-resistant material, chromium carbide alloy wear-resistant material, nickel tungsten wear-resistant material and carbon with back shroud
Change any one of tungsten alloy wear-resistant material to be made.
3. a kind of wear resistant corrosion resistant as claimed in claim 2 is centrifuged impeller of pump, which is characterized in that the wheel disc, front shroud
It with back shroud is made using nickel-chrome-molybdenum alloy cast iron wear-resistant material.
4. a kind of wear resistant corrosion resistant as claimed in claim 3 is centrifuged impeller of pump, which is characterized in that the NI-CR-MO alloys casting
The constituent that iron wear-resistant material includes are as follows: based on mass fraction, iron: 70-90%, nickel: 0.01-0.05%, chromium: 0.6-1.5%,
Molybdenum: 0.01-0.05%, carbon: 3-5%, manganese: 0.5-1.5%, silicon: 0.5-1.5%.
5. a kind of wear resistant corrosion resistant according to any one of claims 1-4 is centrifuged impeller of pump, which is characterized in that the corrosion resistant
Erosion resisting coating is formed using polyflon or exhaustive fluorinated ethylene propylene even application.
6. a kind of wear resistant corrosion resistant as claimed in claim 5 is centrifuged impeller of pump, which is characterized in that be set to wheel disc, front cover
Plate and the corrosion-resistant finishes of back shroud outer surface are formed using exhaustive fluorinated ethylene propylene even application, the thickness of corrosion-resistant finishes
For 3-5mm.
7. a kind of wear resistant corrosion resistant as claimed in claim 5 is centrifuged impeller of pump, which is characterized in that be set to blade outer surface
Corrosion-resistant finishes formed using polyflon even application, corrosion-resistant finishes with a thickness of 2-3mm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811629876.7A CN109578322A (en) | 2018-12-29 | 2018-12-29 | A kind of wear resistant corrosion resistant centrifugation impeller of pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811629876.7A CN109578322A (en) | 2018-12-29 | 2018-12-29 | A kind of wear resistant corrosion resistant centrifugation impeller of pump |
Publications (1)
Publication Number | Publication Date |
---|---|
CN109578322A true CN109578322A (en) | 2019-04-05 |
Family
ID=65932323
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201811629876.7A Pending CN109578322A (en) | 2018-12-29 | 2018-12-29 | A kind of wear resistant corrosion resistant centrifugation impeller of pump |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN109578322A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111472991A (en) * | 2019-12-24 | 2020-07-31 | 合肥皖化电机技术开发有限责任公司 | Wear-resistant coating structure for water pump blade of furnace |
CN111765118A (en) * | 2019-12-24 | 2020-10-13 | 合肥皖化电机技术开发有限责任公司 | High-temperature corrosion-resistant furnace water pump blade |
CN111992073A (en) * | 2020-08-07 | 2020-11-27 | 罗斯(无锡)设备有限公司 | Composite coating dispersion impeller |
CN114571644A (en) * | 2022-02-22 | 2022-06-03 | 浙江大学 | Combined type closed impeller with perfluor surface |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5558353A (en) * | 1978-10-20 | 1980-05-01 | Hitachi Ltd | Stainless cast steel for hydraulic turbine runner |
CN101161846A (en) * | 2007-11-27 | 2008-04-16 | 马鞍山东兴铸造有限公司 | Low nickel-chrome-molybdenum alloy cast iron wear-resistant material for profiled bar straightening roller |
CN103511330A (en) * | 2013-10-18 | 2014-01-15 | 柳州市双铠工业技术有限公司 | Centrifugal pump |
CN105714166A (en) * | 2015-05-03 | 2016-06-29 | 张金荣 | Acid-base-resisting chemical pump |
CN107312979A (en) * | 2016-04-26 | 2017-11-03 | 天津碧宇舟机械制造有限公司 | A kind of high-power corrosion-resistant blade wheel of slurry pump and its manufacture method |
-
2018
- 2018-12-29 CN CN201811629876.7A patent/CN109578322A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5558353A (en) * | 1978-10-20 | 1980-05-01 | Hitachi Ltd | Stainless cast steel for hydraulic turbine runner |
CN101161846A (en) * | 2007-11-27 | 2008-04-16 | 马鞍山东兴铸造有限公司 | Low nickel-chrome-molybdenum alloy cast iron wear-resistant material for profiled bar straightening roller |
CN103511330A (en) * | 2013-10-18 | 2014-01-15 | 柳州市双铠工业技术有限公司 | Centrifugal pump |
CN105714166A (en) * | 2015-05-03 | 2016-06-29 | 张金荣 | Acid-base-resisting chemical pump |
CN107312979A (en) * | 2016-04-26 | 2017-11-03 | 天津碧宇舟机械制造有限公司 | A kind of high-power corrosion-resistant blade wheel of slurry pump and its manufacture method |
Non-Patent Citations (4)
Title |
---|
《机械工程师手册》第二版编辑委员会: "《机械工程师手册 第2版》", 30 June 2000, 机械工业出版社 * |
《机械设计手册》联合编写组: "《机械设计手册 上 第1分册 标准规范 第2版》", 30 October 1979, 化学工业出版社 * |
安美玲: "《机械基础》", 28 February 2007, 西安电子科技大学出版社 * |
左武炘: "《最新实用五金手册》", 31 October 1995, 成都科技大学出版社 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111472991A (en) * | 2019-12-24 | 2020-07-31 | 合肥皖化电机技术开发有限责任公司 | Wear-resistant coating structure for water pump blade of furnace |
CN111765118A (en) * | 2019-12-24 | 2020-10-13 | 合肥皖化电机技术开发有限责任公司 | High-temperature corrosion-resistant furnace water pump blade |
CN111992073A (en) * | 2020-08-07 | 2020-11-27 | 罗斯(无锡)设备有限公司 | Composite coating dispersion impeller |
CN114571644A (en) * | 2022-02-22 | 2022-06-03 | 浙江大学 | Combined type closed impeller with perfluor surface |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN109578322A (en) | A kind of wear resistant corrosion resistant centrifugation impeller of pump | |
US20170051616A1 (en) | Method of protecting a component of a turbomachine from liquid droplets erosion, component and turbomachine | |
CN110306143B (en) | High-temperature-resistant corrosion-resistant sink roller and manufacturing method thereof | |
CN109578321A (en) | A kind of anti abrasive centrifugal pump impeller | |
CN103307029A (en) | Novel wear-resistant and corrosion-resistant chemical centrifugal pump | |
CN217602995U (en) | Water pump shell with wear-resisting and corrosion-resisting properties | |
CN202280645U (en) | Novel high-molecular elastic body coating pump | |
CN111826570A (en) | High-temperature-resistant and high-wear-resistant nickel-based titanium carbide powder and preparation method thereof | |
CN206889337U (en) | The wear-resistant blade wheel of slurry pump of blade before and after a kind of band | |
CN110183959A (en) | A kind of wear-resisting anti-impact long carbon chain nylon composite powder coatings | |
CN110256935A (en) | A kind of modified epoxy phenolic resin coating and preparation method thereof | |
CN203344178U (en) | Blade for concrete mixer | |
CN202370854U (en) | Double-casing small-flow centrifugal pump | |
CN206753989U (en) | A kind of titanium alloy impeller | |
CN208153381U (en) | A kind of blade wheel structure of pump | |
CN206478006U (en) | A kind of open centrifugal pump impeller with the Ni-based diamondite sprayed coating of nanometer | |
CN111809134A (en) | Novel titanium carbide-iron-nickel-chromium-silicon thermal spraying powder and preparation method thereof | |
CN107989830A (en) | A kind of novel environment friendly Pulp pump overcurrent equipment | |
CN203018214U (en) | Stirrer rotor of flotation machine | |
CN204532845U (en) | A kind of wear resistant corrosion resistant desulfurization slag stock pump structure | |
CN205937143U (en) | Centrifugal pump of modified impeller | |
CN102990780A (en) | Forcing type concrete mixer blade | |
CN100386530C (en) | Protective method for metal surface wearing and stream erosion resistance | |
CN107366638A (en) | A kind of pusher air compressor impeller | |
CN106497333A (en) | A kind of turbine blade modified epoxy coating antiseptic loses abrasionproof etching method |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190405 |
|
RJ01 | Rejection of invention patent application after publication |