CN105627011A - Movable elbow and manufacturing method thereof - Google Patents
Movable elbow and manufacturing method thereof Download PDFInfo
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- CN105627011A CN105627011A CN201610159241.XA CN201610159241A CN105627011A CN 105627011 A CN105627011 A CN 105627011A CN 201610159241 A CN201610159241 A CN 201610159241A CN 105627011 A CN105627011 A CN 105627011A
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- Prior art keywords
- spraying
- elbow
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- joint
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L43/00—Bends; Siphons
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- 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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
-
- 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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/08—Coatings characterised by the materials used by metal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/18—Protection of pipes or pipe fittings against corrosion or incrustation specially adapted for pipe fittings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
The invention provides a movable elbow. The movable elbow particularly comprises a first connector, an elbow pipe body and a second connector. The first connector and the second connector are located at the two ends of the elbow pipe body. The inner wall of the elbow pipe body is provided with a cemented carbide layer. The abrasion resistance, the fatigue resistance, the washout resistance and other properties of the elbow pipe body can be improved by arranging the cemented carbide layer on the inner wall of the elbow pipe body, accordingly, the comprehensive performance of the movable elbow is improved substantially, and the service life of the movable elbow is prolonged finally. In addition, the invention provides a manufacturing method of the movable elbow. According to the manufacturing method, a spraying material is sprayed on the inner wall of the elbow pipe body through a hot spraying process, then, the cemented carbide layer is formed, and the combination strength of the cemented carbide layer and a base body can be improved substantially.
Description
Technical field
The present invention relates to the manufacturing technology of special pipeline, it is specifically related to a kind of movable elbow and manufacture method thereof.
Background technology
In the operations such as well cementation in oil field, pressure break, fluid medium has to pass through high voltage bearing pipeline just can be delivered to target location; In site operation, by environmental constraints, unavoidably need to use movable elbow to carry out the flow direction of alter.
Usually, movable elbow comprises the first joint, the 2nd joint and elbow body, and the first joint and the 2nd joint are arranged at the two ends of elbow body respectively, for being connected with other pipeline. In well cementation or fracturing process, in movable elbow, the fluid medium of conveying has the two-phase solid-liquid fluid of the features such as high pressure, high temperature and corrodibility, under this kind of operating environment, movable elbow needs to possess the characteristics such as resistance to high pressure, high temperature resistant, wear-resistant, anticorrosive, anti-impact erosion and antifatigue; And the movable elbow that traditional technology manufactures out can not meet requirement completely in resistance to high pressure, high temperature resistant, wear-resistant, anticorrosive, anti-impact erosion and antifatigue etc., and it is difficult to significantly improve.
Summary of the invention
In view of this, the present invention is intended to propose movable elbow and the manufacture method thereof of a kind of new texture, to promote the over-all properties of movable elbow.
For achieving the above object, the technical scheme of the present invention is achieved in that
As first aspect, the movable elbow that the present invention proposes comprises the first joint, elbow body and the 2nd joint, and described first joint and the 2nd joint are positioned at the two ends of elbow body, and the inwall of described elbow body is provided with hard alloy layer.
In preferred technical scheme, the thickness of described hard alloy layer is between 0.8 millimeter to 1.1 millimeters.
In preferred technical scheme, the hardness of described hard alloy layer is not less than 72HRC.
The movable elbow that the present invention proposes comprises the first joint, elbow body and the 2nd joint, and the first joint and the 2nd joint are positioned at the two ends of elbow body, and the inwall of elbow body is provided with hard alloy layer. When carrying two-phase solid-liquid fluid, because fluid sharply changes flow direction at elbow body place, causing that elbow body is frayed, most severe impact, therefore, elbow body is the position the most easily lost efficacy; The present invention is by arranging hard alloy layer at elbow body inwall, it is possible to improves the performances such as the resistance to wearing of elbow body, antifatigue, anti-impact erosion, and then significantly promotes the over-all properties of movable elbow, finally extends work-ing life.
As second aspect, the present invention proposes the manufacture method of a kind of movable elbow, to manufacture the movable elbow of said structure, this manufacture method comprises the following steps:
S1: the matrix making elbow body;
S2: utilize hot-spraying techniques that spray material is sprayed on the surface of described matrix, and then form hard alloy layer.
In preferred technical scheme, the classification of described hot-spraying techniques is any one during flame spray powder coating, wire flame spraying, hypersonic flame spraying, electric arc spraying, supersonic electric arc spraying, plasma spraying, supersonic speed plasma spraying and gas explosion spray.
In preferred technical scheme, in step s 2, described hot-spraying techniques adopts any one mode between F1 to F8 to carry out:
F1: the classification of described hot-spraying techniques is flame spray powder coating, and spray material is metal and plastics, Heating style is oxygen/combustion gas, and heat source temperature is 3000 degree, and velocity of particle is 90��150 meters/second;
F2: the classification of described hot-spraying techniques is silk material flame plating, and spray material is metal and pottery, Heating style is oxygen/combustion gas, and heat source temperature is 3000 degree, and velocity of particle is 150��200 meters/second;
F3: the classification of described hot-spraying techniques is hypersonic flame spraying, and spray material is metallic carbide, Heating style is oxygen/combustion gas, and heat source temperature is 2800 degree, and velocity of particle is 600��900 meters/second;
F4: the classification of described hot-spraying techniques is electric arc spraying, and spray material is metal, Heating style is direct current arc, and heat source temperature is 5500��6000 degree, and velocity of particle is 150��250 meters/second;
F5: the classification of described hot-spraying techniques is supersonic electric arc spraying, and spray material is metal, and Heating style is direct current arc, and heat source temperature is 5500��6000 degree, velocity of particle is greater than 380 meters/second;
F6: the classification of described hot-spraying techniques is plasma spraying, and spray material is metal, pottery, carbide, plastics and mixture, Heating style is direct current arc, and heat source temperature is 11000 degree, velocity of particle 240��540 meters/second;
F7: the classification of described hot-spraying techniques is supersonic speed plasma spraying, and spray material is metal, pottery, carbide, plastics and mixture, Heating style is direct current arc, and heat source temperature is 11000 degree, velocity of particle 600��900 meters/second;
F8: the classification of described hot-spraying techniques is gas explosion spraying, and spray material is metal, pottery, carbide, plastics and mixture, and Heating style is oxygen/combustion gas, and heat source temperature is 3000 degree, velocity of particle 600��900 meters/second.
Relative to prior art, the movable elbow manufacture method that the present invention proposes has following advantage: spray material is sprayed on the matrix of elbow body by hot-spraying techniques and then forms hard alloy layer at matrix surface by the present invention, when being made into movable elbow, hard alloy layer is positioned on the inwall of elbow body, it is possible to greatly promote the over-all properties of movable elbow; In addition, hot-spraying techniques can significantly promote the bonding strength of hard alloy layer and matrix, and therefore, the movable elbow manufacturing out by the method, quality is more secure.
Accompanying drawing explanation
The accompanying drawing of the part forming the present invention is used to provide a further understanding of the present invention, and the schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention. In the accompanying drawings:
The structural representation of the movable elbow that Fig. 1 provides for the specific embodiment of the invention.
Description of reference numerals:
1 first joint 2 the 2nd joint 3 elbow body 4 hard alloy layer
Embodiment
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually. Below with reference to the accompanying drawings and come the present invention is described in detail in conjunction with the embodiments.
Fig. 1 is a kind of movable elbow that the specific embodiment of the invention provides, as shown in the figure, this movable elbow comprises the first joint 1, elbow body 3 and the 2nd joint 2, first joint 1 and the 2nd joint 2 is positioned at the two ends of elbow body 3, and the inwall of elbow body 3 is provided with hard alloy layer 4; The hardness of hard alloy layer 4 is not less than 72HRC, and thickness is advisable between 1.1 millimeters with 0.8 millimeter, so both can ensure that movable elbow has suitable work-ing life, again can production control cost.
When carrying two-phase solid-liquid fluid, because fluid sharply changes flow direction at elbow body 3 place, causing that elbow body 3 is frayed, most severe impact, therefore, elbow body 3 is the position the most easily lost efficacy; The specific embodiment of the invention is by arranging hard alloy layer 4 at elbow body 3 inwall, it is possible to improves the performances such as the resistance to wearing of elbow body 3, antifatigue, anti-impact erosion, and then significantly promotes the work-ing life of movable elbow.
In order to obtain the movable elbow of said structure, the specific embodiment of the invention gives the manufacture method of a kind of movable elbow, specifically comprises the following steps:
S1: the matrix making elbow body 3;
S2: utilize hot-spraying techniques that spray material is sprayed on the surface of matrix, and then form hard alloy layer 4.
The specific category of hot-spraying techniques can be any one during flame spray powder coating, wire flame spraying, hypersonic flame spraying, electric arc spraying, supersonic electric arc spraying, plasma spraying, supersonic speed plasma spraying and gas explosion spray; The concept of these 8 kinds of hot-spraying techniquess and technology contents, those skilled in the art can obtain according to existing technical information, and therefore, the present embodiment repeats no more.
In specific implementation process, above-mentioned 8 kinds of hot-spraying techniquess parameter can be implemented listed by table 1:
The enforcement parameter of table 1:8 kind hot-spraying techniques
In these 8 kinds of hot-spraying techniquess, spray material specifically can be combined by materials such as WC, TiC, SiC, Cr3C2, NbC and NiCrBSi as required, and has been mixed in proportion.
Carrying out thermospray according to above-mentioned parameter and can ensure to have between hard alloy layer 4 and matrix good bonding strength, specifically, the degree that mode can make the bonding strength between hard alloy layer 4 and matrix reach as shown in the table is implemented in above-mentioned 8 kinds of thermosprays.
| Numbering | F1 | F2 | F3 | F4 | F5 | F6 | F7 | F8 |
| Bonding strength (MPa) | 20��30 | 20��30 | 40��90 | 20��40 | 40��60 | 40��70 | 40��90 | 40��90 |
Relative to prior art, the manufacture method of above-mentioned movable elbow has following advantage: is sprayed on the matrix of elbow body 3 by hot-spraying techniques by spray material and then forms hard alloy layer 4 at matrix surface, when being made into movable elbow, hard alloy layer 4 is positioned on the inwall of elbow body 3, it is possible to greatly promote the over-all properties of movable elbow; In addition, hot-spraying techniques can significantly promote the bonding strength of hard alloy layer 4 with matrix, and therefore, the movable elbow manufacturing out by the method, quality is more secure.
The foregoing is only the better embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a movable elbow, it is characterized in that, comprise the first joint (1), elbow body (3) and the 2nd joint (2), described first joint (1) and the 2nd joint (2) are positioned at the two ends of elbow body (3), and the inwall of described elbow body (3) is provided with hard alloy layer (4).
2. movable elbow according to claim 1, it is characterised in that, the thickness of described hard alloy layer (4) is between 0.8 millimeter to 1.1 millimeters.
3. movable elbow according to claim 2, it is characterised in that, the hardness of described hard alloy layer (4) is not less than 72HRC.
4. the manufacture method of a movable elbow, it is characterized in that, described movable elbow comprises the first joint (1), elbow body (3) and the 2nd joint (2), described first joint (1) and the 2nd joint (2) are positioned at the two ends of elbow body (3), and the inwall of described elbow body (3) is provided with hard alloy layer (4); Described manufacture method comprises the following steps:
S1: the matrix making elbow body (3);
S2: utilize hot-spraying techniques that spray material is sprayed on the surface of described matrix, and then form hard alloy layer (4).
5. the manufacture method of movable elbow according to claim 4, it is characterized in that, the classification of described hot-spraying techniques is any one during flame spray powder coating, wire flame spraying, hypersonic flame spraying, electric arc spraying, supersonic electric arc spraying, plasma spraying, supersonic speed plasma spraying and gas explosion spray.
6. the manufacture method of movable elbow according to claim 5, it is characterised in that, in step s 2, described hot-spraying techniques adopts any one mode between F1 to F8 to carry out:
F1: the classification of described hot-spraying techniques is flame spray powder coating, and spray material is metal and plastics, Heating style is oxygen/combustion gas, and heat source temperature is 3000 degree, and velocity of particle is 90��150 meters/second;
F2: the classification of described hot-spraying techniques is silk material flame plating, and spray material is metal and pottery, Heating style is oxygen/combustion gas, and heat source temperature is 3000 degree, and velocity of particle is 150��200 meters/second;
F3: the classification of described hot-spraying techniques is hypersonic flame spraying, and spray material is metallic carbide, Heating style is oxygen/combustion gas, and heat source temperature is 2800 degree, and velocity of particle is 600��900 meters/second;
F4: the classification of described hot-spraying techniques is electric arc spraying, and spray material is metal, Heating style is direct current arc, and heat source temperature is 5500��6000 degree, and velocity of particle is 150��250 meters/second;
F5: the classification of described hot-spraying techniques is supersonic electric arc spraying, and spray material is metal, and Heating style is direct current arc, and heat source temperature is 5500��6000 degree, velocity of particle is greater than 380 meters/second;
F6: the classification of described hot-spraying techniques is plasma spraying, and spray material is metal, pottery, carbide, plastics and mixture, Heating style is direct current arc, and heat source temperature is 11000 degree, velocity of particle 240��540 meters/second;
F7: the classification of described hot-spraying techniques is supersonic speed plasma spraying, and spray material is metal, pottery, carbide, plastics and mixture, Heating style is direct current arc, and heat source temperature is 11000 degree, velocity of particle 600��900 meters/second;
F8: the classification of described hot-spraying techniques is gas explosion spraying, and spray material is metal, pottery, carbide, plastics and mixture, and Heating style is oxygen/combustion gas, and heat source temperature is 3000 degree, velocity of particle 600��900 meters/second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610159241.XA CN105627011A (en) | 2016-03-21 | 2016-03-21 | Movable elbow and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610159241.XA CN105627011A (en) | 2016-03-21 | 2016-03-21 | Movable elbow and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105627011A true CN105627011A (en) | 2016-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610159241.XA Pending CN105627011A (en) | 2016-03-21 | 2016-03-21 | Movable elbow and manufacturing method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN105627011A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111662399A (en) * | 2019-03-05 | 2020-09-15 | 潘连山 | Novel nano-alloy plastic water pump elbow and manufacturing process thereof |
| FR3105341A1 (en) * | 2019-12-23 | 2021-06-25 | Vallourec Oil And Gas France | Liner wear resistant coated tube |
| CN114738584A (en) * | 2022-04-22 | 2022-07-12 | 山东宏丰智能装备有限公司 | High-pressure movable elbow |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102534455A (en) * | 2011-12-28 | 2012-07-04 | 中国科学院宁波材料技术与工程研究所 | Composite gradient coating thermally sprayed on surface of screw rod of injecting and molding machine and a method for preparing same |
| CN103911620A (en) * | 2013-01-09 | 2014-07-09 | 中国科学院宁波材料技术与工程研究所 | Preparation method for thermal-shock-resistant metal-based coating |
| CN104674157A (en) * | 2015-03-15 | 2015-06-03 | 绍兴斯普瑞微纳科技有限公司 | Copper casting mould rapidly moulded by hot spraying technology and manufacturing method of copper casting mould |
| CN204922339U (en) * | 2015-08-26 | 2015-12-30 | 株洲西迪硬质合金科技股份有限公司 | Elbow |
| CN105331920A (en) * | 2015-11-11 | 2016-02-17 | 焦作安泰新型耐磨材料有限公司 | Method for preparing corrosion and abrasion resisting coating through supersonic electric arc spraying |
-
2016
- 2016-03-21 CN CN201610159241.XA patent/CN105627011A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102534455A (en) * | 2011-12-28 | 2012-07-04 | 中国科学院宁波材料技术与工程研究所 | Composite gradient coating thermally sprayed on surface of screw rod of injecting and molding machine and a method for preparing same |
| CN103911620A (en) * | 2013-01-09 | 2014-07-09 | 中国科学院宁波材料技术与工程研究所 | Preparation method for thermal-shock-resistant metal-based coating |
| CN104674157A (en) * | 2015-03-15 | 2015-06-03 | 绍兴斯普瑞微纳科技有限公司 | Copper casting mould rapidly moulded by hot spraying technology and manufacturing method of copper casting mould |
| CN204922339U (en) * | 2015-08-26 | 2015-12-30 | 株洲西迪硬质合金科技股份有限公司 | Elbow |
| CN105331920A (en) * | 2015-11-11 | 2016-02-17 | 焦作安泰新型耐磨材料有限公司 | Method for preparing corrosion and abrasion resisting coating through supersonic electric arc spraying |
Non-Patent Citations (1)
| Title |
|---|
| 李君: "热喷涂技术应用与发展调研分析", 《吉林大学硕士学位论文》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111662399A (en) * | 2019-03-05 | 2020-09-15 | 潘连山 | Novel nano-alloy plastic water pump elbow and manufacturing process thereof |
| FR3105341A1 (en) * | 2019-12-23 | 2021-06-25 | Vallourec Oil And Gas France | Liner wear resistant coated tube |
| WO2021130253A1 (en) * | 2019-12-23 | 2021-07-01 | Vallourec Oil And Gas France | Coated pipe resistant to casing wear |
| CN114901985A (en) * | 2019-12-23 | 2022-08-12 | 瓦卢瑞克石油天然气法国有限公司 | Wear-resistant plated pipe for sleeving pipe column |
| CN114738584A (en) * | 2022-04-22 | 2022-07-12 | 山东宏丰智能装备有限公司 | High-pressure movable elbow |
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Effective date of registration: 20161212 Address after: 102206 South Beijing city of Changping District science and Technology Park 31 manufacturing center of Beijing Liu Lu Li Applicant after: 31 petroleum Intelligent Equipment Co., Ltd. Address before: 102206 Changping District City, North Road, Beijing, the 31 Industrial Park Applicant before: SANY HEAVY ENERGY EQUIPMENT CO., LTD. |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20160601 |