CN105440680A - Light type electric submersible pump - Google Patents
Light type electric submersible pump Download PDFInfo
- Publication number
- CN105440680A CN105440680A CN201511007241.XA CN201511007241A CN105440680A CN 105440680 A CN105440680 A CN 105440680A CN 201511007241 A CN201511007241 A CN 201511007241A CN 105440680 A CN105440680 A CN 105440680A
- Authority
- CN
- China
- Prior art keywords
- impeller
- parts
- submersible pump
- coupling agent
- type electric
- 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
- 239000007822 coupling agent Substances 0.000 claims abstract description 17
- 239000003365 glass fiber Substances 0.000 claims abstract description 15
- 239000000314 lubricant Substances 0.000 claims abstract description 13
- 239000011347 resin Substances 0.000 claims abstract description 13
- 229920005989 resin Polymers 0.000 claims abstract description 13
- 229920000069 polyphenylene sulfide Polymers 0.000 claims abstract description 12
- 239000006229 carbon black Substances 0.000 claims abstract description 11
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 11
- 239000004576 sand Substances 0.000 claims abstract description 5
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 18
- 239000003112 inhibitor Substances 0.000 claims description 12
- 230000003647 oxidation Effects 0.000 claims description 12
- 238000007254 oxidation reaction Methods 0.000 claims description 12
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 10
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 claims description 9
- ALVYUZIFSCKIFP-UHFFFAOYSA-N triethoxy(2-methylpropyl)silane Chemical compound CCO[Si](CC(C)C)(OCC)OCC ALVYUZIFSCKIFP-UHFFFAOYSA-N 0.000 claims description 8
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 11
- -1 poly(phenylene sulfide) Polymers 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 8
- 239000011368 organic material Substances 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 abstract 2
- 239000003963 antioxidant agent Substances 0.000 abstract 1
- 230000003078 antioxidant effect Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract 1
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract 1
- 239000012745 toughening agent Substances 0.000 abstract 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 5
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 229920000265 Polyparaphenylene Polymers 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 150000003568 thioethers Chemical class 0.000 description 2
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 229920006465 Styrenic thermoplastic elastomer Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 150000003384 small molecules Chemical group 0.000 description 1
- 238000003856 thermoforming Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L81/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers
- C08L81/02—Polythioethers; Polythioether-ethers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
-
- 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
- F04D29/2205—Conventional flow pattern
- F04D29/2222—Construction and assembly
- F04D29/2227—Construction and assembly for special materials
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/40—Organic materials
- F05D2300/43—Synthetic polymers, e.g. plastics; Rubber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/40—Organic materials
- F05D2300/43—Synthetic polymers, e.g. plastics; Rubber
- F05D2300/432—PTFE [PolyTetraFluorEthylene]
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a light type electric submersible pump. A sand separating disk is arranged at an impeller hub on a water pump spindle, a double-flow-passage impeller is adopted, a suction port of the double-flow-passage impeller is matched with an inner hole of a volute, and a central rotating shaft is connected with the impeller in a stationary fit manner through a taper sleeve; the impeller is made of organic materials as follows: 45-60 parts of PPS (poly(phenylene sulfide)) resin, 25-35 parts of polytetrafluoroethylene, 10-15 parts of glass fibers, 0.3-2 parts of a silicone lubricant, 5-15 parts of a toughening agent, 0.5-2 parts of a coupling agent, 2-4 parts of carbon black and 0.2-2 parts of an antioxidant. The light type electric submersible pump adopts the impeller made of the organic materials, the technology is mature, the production cost is low, the abrasion resistance is high, mounting is convenient, no bearing is required to be adopted, and the working noise is reduced; the light type electric submersible pump is portable in size, convenient to mount and capable of moving quickly, and novel corrosion-resistant and abrasion-resistant materials are used, so that the pump can be used under any water quality conditions.
Description
Technical field
The present invention relates to a kind of water pump, be specially a kind of submersible pump being suitable for mine drainage and using.
Background technology
The submersible pump being applicable to mine use of prior art also exists weight greatly, and mobile and installation inconvenience, impeller is easy to wear, is easy to be blocked by Sediment Siltation.Employing metal blade wears no resistance, and often needs to change impeller.In order to overcome the problems referred to above, propose many improvement projects.
Summary of the invention
For the problems referred to above, invented a kind of light-duty submersible pump, it adopts organic materials to make impeller, overall submersible pump weight is declined greatly, is provided with every sand table simultaneously, prevents Sediment Siltation.
A kind of light-duty submersible pump, comprise central rotating shaft and be fixed on the impeller on central rotating shaft, it is characterized in that on described Pump Shaft, impeller hub position is provided with every sand table, described impeller is two blade impeller, the suction inlet of described two blade impeller mates with spiral case endoporus, described central rotating shaft is connected by tapered sleeve stationary fit with between impeller, and described impeller is made up of the raw material of following weight part:
PPS resin 45-60 part; Tetrafluoroethylene 25-35 part; Glass fibre 10-15 part; Silicone lubricant 0.3-2 part; Toughner 5-15 part; Coupling agent 0.5-2; Carbon black 2-4 part; Oxidation inhibitor 0.2-2 part.
The light-duty submersible pump of described one, is characterized in that described toughner adopts the rare analog thermoplastic elastomer of benzene second and/or glycidyl methacrylate; Described coupling agent adopts isobutyl triethoxy silane; Described oxidation inhibitor is polynary hindered phenol and/or phosphorous acid ester.
The light-duty submersible pump of described one, is characterized in that described PPS resin 50-55 part; Tetrafluoroethylene 30-35 part; 12 parts, glass fibre; Silicone lubricant 0.8-1.5 part; Toughner 5-10 part; Coupling agent 0.8-2 part; Carbon black 2-4 part; Oxidation inhibitor is polynary hindered phenol and/or phosphorous acid ester 0.2-1.0 part.
The light-duty submersible pump of one of the present invention, adopt the impeller that organic materials makes, its technical maturity, production cost is low, and wear resistance is strong, easy for installation, does not need to adopt bearing, reduces operating noise.Volume is light and handy, easy for installation, can quick travel, due to the type material of material selection anticorrosion antiwear, can use with satisfied under any condition of water quality.
Accompanying drawing explanation
Fig. 1 is light-duty submersible pump structural representation.
In figure, 1-motor; 2-filter screen; 3-water inlet joint; 4-blower inlet casing; 5-impeller; 6-water outlet; 7-tapered sleeve; 8-sliding surface bearing; 9-rotating shaft.
Embodiment
With reference to accompanying drawing, the light-duty submersible pump of one of the present invention, comprises motor 1, with the rotating shaft 9 that motor 1 output shaft is fixing, impeller 5 is fixed in rotating shaft by tapered sleeve 7 in stationary fit mode, has blower inlet casing 4 outside described impeller, and water inlet joint 3 front portion of electric pump is provided with filter screen 2.Between rotating shaft and blower inlet casing, have sliding surface bearing 8, water outlet 6 is positioned at the end of pump.On Pump Shaft, impeller hub position is provided with every sand table.Described impeller is two blade impeller, and the suction inlet of described two blade impeller mates with spiral case endoporus.
Above-mentioned impeller 5 is made by macromolecular material.Wherein each component is as follows by weight ratio: PPS resin 45-60 part; Tetrafluoroethylene 25-35 part; Glass fibre 10-15 part; Silicone lubricant 0.3-2 part; Toughner 5-15 part; Coupling agent 0.5-2; Carbon black 2-4 part; Oxidation inhibitor 0.2-2 part.Described toughner adopts the rare analog thermoplastic elastomer of benzene second and/or glycidyl methacrylate; Described coupling agent adopts isobutyl triethoxy silane.
In above-mentioned materials proportioning, preferred version is PPS resin 50-55 part; Tetrafluoroethylene 30-35 part; 12 parts, glass fibre; Silicone lubricant 0.8-1.5 part; The rare analog thermoplastic elastomer of toughner benzene second and/or glycidyl methacrylate 5-10 part; Coupling agent isobutyl triethoxy silane 0.8-2 part; Carbon black 2-4 part; Oxidation inhibitor 0.2-1.0 part.
Coupling agent of the present invention adopts the isobutyl triethoxy silane containing isobutyl functionality of close organic group, silane coupling agent finished industrial level isobutyl triethoxy silane, small molecule structure can penetrate cementing properties surface, penetrate into inside concrete and be exposed to the air in acidity or alkaline environment and the water molecules generation chemical reaction in substrate, form one and scold water treatment layer, thus suppress moisture to enter into substrate.Produce waterproof, anti-Cl performance.Can effectively prevent base material because of the erosion of infiltration, acid and haline water.
Toughner is styrenic thermoplastic elastomer and GMA, glycidyl methacrylate GMA, and be 30% of toughner total mass, oxidation inhibitor is polynary hindered phenol and phosphorous acid ester.
Described glass fibre is macrofiber and/or chopped strand, is preferably the chopped strand of 4 ~ 7mm.
Appropriate lubricant can improve the cohesiveness of glass fibre and matrix resin, is beneficial to glass fibre dispersion, prevents glass fibre from exposing; Meanwhile, lubricant effectively can control the mobility of material, is conducive to mold filling, and then impels resin to the abundant infiltration of metal material and infiltration.
Above-mentioned macromolecular material impeller adopts the thermoforming process of existing maturation to make.
Embodiment 1
Polyphenylene thioether PPS resin 45 parts; Tetrafluoroethylene 35 parts; 10 parts, glass fibre; Silicone lubricant 2 parts; Toughner 5 parts; Coupling agent 2; Carbon black 2 parts; 2 parts, oxidation inhibitor.Described toughner adopts the rare analog thermoplastic elastomer of benzene second and/or glycidyl methacrylate; Described coupling agent adopts isobutyl triethoxy silane.
Embodiment 2
Polyphenylene thioether PPS resin 60 parts; Tetrafluoroethylene 25 parts; 15 parts, glass fibre; Silicone lubricant 0.3-part; Toughner 15 parts; Coupling agent 0.5; Carbon black 4 parts; 0.2 part, oxidation inhibitor.Described toughner adopts the rare analog thermoplastic elastomer of benzene second and/or glycidyl methacrylate; Described coupling agent adopts isobutyl triethoxy silane.
Embodiment 3
The light-duty submersible pump of described one, is characterized in that described PPS resin 50 parts; Tetrafluoroethylene 30 parts; 12 parts, glass fibre; Silicone lubricant 0.8 part; Toughner 10 parts; Coupling agent 2 parts; Carbon black 4 parts; Oxidation inhibitor is polynary hindered phenol and/or phosphorous acid ester 0.2 part.
Embodiment 4
The light-duty submersible pump of described one, is characterized in that described PPS resin 55 parts; Tetrafluoroethylene 35 parts; 12 parts, glass fibre; Silicone lubricant 1.5 parts; Toughner 5 parts; Coupling agent 0.8 part; Carbon black 2 parts; Oxidation inhibitor is polynary hindered phenol and/or phosphorous acid ester 1.0 parts.
Claims (3)
1. a light-duty submersible pump, comprise central rotating shaft and be fixed on the impeller on central rotating shaft, it is characterized in that on described Pump Shaft, impeller hub position is provided with every sand table, described impeller is two blade impeller, the suction inlet of described two blade impeller mates with spiral case endoporus, described central rotating shaft is connected by tapered sleeve stationary fit with between impeller, and described impeller is made up of the raw material of following weight part:
PPS resin 45-60 part; Tetrafluoroethylene 25-35 part; Glass fibre 10-15 part; Silicone lubricant 0.3-2 part; Toughner 5-15 part; Coupling agent 0.5-2 part; Carbon black 2-4 part; Oxidation inhibitor 0.2-2 part.
2. the light-duty submersible pump of one according to claim 1, is characterized in that described toughner adopts the rare analog thermoplastic elastomer of benzene second and/or glycidyl methacrylate; Described coupling agent adopts isobutyl triethoxy silane.
3. the light-duty submersible pump of one according to claim 2, is characterized in that described PPS resin 50-55 part; Tetrafluoroethylene 30-35 part; 12 parts, glass fibre; Silicone lubricant 0.8-1.5 part; Toughner 5-10 part; Coupling agent 0.8-2 part; Carbon black 2-4 part; Oxidation inhibitor 0.2-1.0 part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511007241.XA CN105440680A (en) | 2015-12-30 | 2015-12-30 | Light type electric submersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511007241.XA CN105440680A (en) | 2015-12-30 | 2015-12-30 | Light type electric submersible pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105440680A true CN105440680A (en) | 2016-03-30 |
Family
ID=55551345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511007241.XA Pending CN105440680A (en) | 2015-12-30 | 2015-12-30 | Light type electric submersible pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105440680A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165852A (en) * | 2017-06-29 | 2017-09-15 | 吉林市奥吉通泵业有限责任公司 | A kind of high intensity is modified the enhanced embedded-type modularized immersible pump of polyformaldehyde composite material |
| CN110643179A (en) * | 2019-11-12 | 2020-01-03 | 深圳市兴盛迪新材料有限公司 | High-toughness wear-resistant polyphenylene sulfide composite material |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2128430Y (en) * | 1992-05-23 | 1993-03-17 | 赵庆章 | Sludge and corrosion resistant electric submerged pump used in brine |
| CN201420683Y (en) * | 2009-04-10 | 2010-03-10 | 中山市精宝电子电器有限公司 | Double inlet and outlet water variable flowing and uniflowing submerged pump |
| CN102032198A (en) * | 2009-09-29 | 2011-04-27 | 李锦泽 | Novel double-suction high-efficiency submersible motor pump |
| CN103467989A (en) * | 2012-06-06 | 2013-12-25 | 合肥杰事杰新材料股份有限公司 | Continuous long fiber reinforced PPS composite material and preparation method thereof |
| CN103502360A (en) * | 2011-06-29 | 2014-01-08 | 东丽株式会社 | Polyphenylene sulfide resin composition and molding comprising same |
| CN203441772U (en) * | 2013-08-22 | 2014-02-19 | 山东京泰耐磨材料有限责任公司 | Mine submersible electric pump with double-channel impeller |
| CN103998506A (en) * | 2011-12-16 | 2014-08-20 | 提克纳有限责任公司 | Boron-containing nucleating agent for polyphenylene sulfide |
-
2015
- 2015-12-30 CN CN201511007241.XA patent/CN105440680A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2128430Y (en) * | 1992-05-23 | 1993-03-17 | 赵庆章 | Sludge and corrosion resistant electric submerged pump used in brine |
| CN201420683Y (en) * | 2009-04-10 | 2010-03-10 | 中山市精宝电子电器有限公司 | Double inlet and outlet water variable flowing and uniflowing submerged pump |
| CN102032198A (en) * | 2009-09-29 | 2011-04-27 | 李锦泽 | Novel double-suction high-efficiency submersible motor pump |
| CN103502360A (en) * | 2011-06-29 | 2014-01-08 | 东丽株式会社 | Polyphenylene sulfide resin composition and molding comprising same |
| CN103998506A (en) * | 2011-12-16 | 2014-08-20 | 提克纳有限责任公司 | Boron-containing nucleating agent for polyphenylene sulfide |
| CN103467989A (en) * | 2012-06-06 | 2013-12-25 | 合肥杰事杰新材料股份有限公司 | Continuous long fiber reinforced PPS composite material and preparation method thereof |
| CN203441772U (en) * | 2013-08-22 | 2014-02-19 | 山东京泰耐磨材料有限责任公司 | Mine submersible electric pump with double-channel impeller |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165852A (en) * | 2017-06-29 | 2017-09-15 | 吉林市奥吉通泵业有限责任公司 | A kind of high intensity is modified the enhanced embedded-type modularized immersible pump of polyformaldehyde composite material |
| CN110643179A (en) * | 2019-11-12 | 2020-01-03 | 深圳市兴盛迪新材料有限公司 | High-toughness wear-resistant polyphenylene sulfide composite material |
| CN110643179B (en) * | 2019-11-12 | 2022-05-17 | 广东兴盛迪科技有限公司 | High-toughness wear-resistant polyphenylene sulfide composite material |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160330 |