CN110500448B - Oil pipeline device and machining method thereof - Google Patents
Oil pipeline device and machining method thereof Download PDFInfo
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- CN110500448B CN110500448B CN201910786223.8A CN201910786223A CN110500448B CN 110500448 B CN110500448 B CN 110500448B CN 201910786223 A CN201910786223 A CN 201910786223A CN 110500448 B CN110500448 B CN 110500448B
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- 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
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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
- F16L9/00—Rigid pipes
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Abstract
The invention discloses a machining method of an oil pipeline device, and belongs to the technical field of fluid equipment. A processing method of an oil circuit pipe device comprises an oil circuit pipe and is characterized in that the oil circuit pipe comprises a first-order oil circuit pipe, a second-order oil circuit pipe, a third-order oil circuit pipe, a fourth-order oil circuit pipe, a fifth-order oil circuit pipe, a sixth-order oil circuit pipe and a seventh-order oil circuit pipe, wherein grooves are formed in the first-order oil circuit pipe, the second-order oil circuit pipe, the third-order oil circuit pipe, the fourth-order oil circuit pipe, the fifth-order oil circuit pipe, the sixth-order oil circuit pipe and the seventh-order oil circuit pipe; the invention uses thermal transverse wave emission method to detect the flaw of the blank pipe in advance, which can effectively reduce the quality cost in the later period, processes the pipe by sections to ensure the shape inner diameter needed by the oil pipeline, then adds a sealing ring by arranging a groove to ensure the sealing property of the fluid in the pipe, finally uses advanced submerged arc welding process to weld each stage of the oil pipeline, and carries out water pressure test to further ensure the adhesive property and high pressure resistance of the pipe.
Description
Technical Field
The invention relates to the technical field of fluid equipment, in particular to an oil pipeline device and a machining method thereof.
Background
Piping refers to a device for transporting a gas, liquid or fluid with solid particles, connected by pipes, pipe couplings, valves, etc.; generally, after being pressurized by a blower, a compressor, a pump, a boiler and the like, fluid flows from a high-pressure part to a low-pressure part of a pipeline, and can also be conveyed by utilizing the pressure or gravity of the fluid; the use of pipelines is very widespread, mainly in water supply, drainage, heating, gas supply, long-distance oil and gas delivery, agricultural irrigation, hydraulic engineering and various industrial installations.
With the development of science and technology, the types of pipelines are also diversified, in some special fields, such as flammable and explosive oil products, special pipelines are needed to form a needed inner cavity, usually, the special inner cavity needs to be processed in a separated mode and finally bonded together, but the existing pipeline processing is mainly used for manufacturing pipelines with the same diameter, the manufacturing of the variable diameter inner pipe still lacks of practicality, and a small amount of processed separated pipelines are poor in bonding performance, sealing performance and pressure resistance; therefore, there is a need for a pipe joint that can have sufficient reliability and pressure resistance after pipe bonding.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an oil pipeline device and a machining method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
the oil circuit pipe device comprises an oil circuit pipe, wherein the oil circuit pipe comprises a first-order oil circuit pipe, a second-order oil circuit pipe, a third-order oil circuit pipe, a fourth-order oil circuit pipe, a fifth-order oil circuit pipe, a sixth-order oil circuit pipe and a seventh-order oil circuit pipe, and grooves are formed in the first-order oil circuit pipe, the second-order oil circuit pipe, the third-order oil circuit pipe, the fourth-order oil circuit pipe, the fifth-order oil circuit pipe, the sixth-order oil circuit pipe and the seventh-order oil circuit pipe.
A processing method of an oil pipeline device comprises the following processing steps:
s1: firstly, putting a processed blank pipe material into an X-ray chamber, and carrying out internal flaw detection on the blank pipe material by using X-rays to ensure that no crack exists in the pipeline;
s2: after flaw detection is qualified, fixing one end of a cylindrical solid blank tube material on a three-jaw chuck of a lathe, propping the center of the cylinder by a thimble to fix the other end of the cylindrical solid blank tube material, and mounting an excircle turning tool on the lathe;
s3: starting a lathe, and turning the cylindrical solid blank pipe material;
s4: stopping the lathe after the outer circle turning is finished;
s5: the excircle turning tool of the lathe is replaced by a turning-off turning tool without using a thimble;
s6: starting a lathe, wherein the thicknesses of the cut-off pipe materials are respectively the thicknesses of a first-order oil circuit pipe, a second-order oil circuit pipe, a third-order oil circuit pipe, a fourth-order oil circuit pipe, a fifth-order oil circuit pipe, a sixth-order oil circuit pipe and a seventh-order oil circuit pipe;
s7: after the blanking is finished, stopping the lathe, and replacing the turning-off lathe tool with an inner bore lathe tool;
s8: performing heat treatment on the turned-off first-order oil circuit pipe, second-order oil circuit pipe, third-order oil circuit pipe, fourth-order oil circuit pipe, fifth-order oil circuit pipe, sixth-order oil circuit pipe and seventh-order oil circuit pipe, respectively clamping the oil circuit pipes on a three-jaw chuck of a lathe after the heat treatment is completed, and turning inner holes of the oil circuit pipes;
s9: placing the oil path pipe body after turning the inner hole aside for standby, stopping the lathe, and replacing the inner hole lathe tool with a turning groove lathe tool;
s10: respectively clamping a first-order oil circuit pipe, a second-order oil circuit pipe, a third-order oil circuit pipe, a fourth-order oil circuit pipe, a fifth-order oil circuit pipe, a sixth-order oil circuit pipe and a seventh-order oil circuit pipe which are provided with inner holes by turning on a three-jaw chuck of a lathe, and turning a groove by using a grooving turning tool;
s11: after the turning groove is finished, starting pre-embedded equipment, adding sealing rings into grooves of a first-order oil circuit pipe and a second-order oil circuit pipe, aligning, welding an inner circular seam and an outer circular seam, sequentially welding a third-order oil circuit pipe, a fourth-order oil circuit pipe, a fifth-order oil circuit pipe, a sixth-order oil circuit pipe and a seventh-order oil circuit pipe, and finally assembling an oil circuit pipe whole;
s12: sequentially carrying out X-ray detection, ultrasonic detection and water pressure test on the welded oil pipeline;
s13: and after the test is qualified, performing anticorrosive treatment on the inner wall and the outer wall of the oil way pipe.
Preferably, the X-ray and ultrasonic inspection methods in S1 and S12 both use a transverse wave reflection method to perform inspection while the probe and the steel pipe are moving relative to each other.
Preferably, the S2, S5, S7 and S9 all use cemented carbide indexable turning tools.
Preferably, the surface roughness Ra of the first-order oil circuit pipe, the second-order oil circuit pipe, the third-order oil circuit pipe, the fourth-order oil circuit pipe, the fifth-order oil circuit pipe, the sixth-order oil circuit pipe and the seventh-order oil circuit pipe in S2 after turning the outer circle is not more than 6.5.
Preferably, the surface roughness Ra of the first-order oil circuit pipe, the second-order oil circuit pipe, the third-order oil circuit pipe, the fourth-order oil circuit pipe, the fifth-order oil circuit pipe, the sixth-order oil circuit pipe and the seventh-order oil circuit pipe in S6 after inner holes are turned is not more than 3.2.
Preferably, the surface roughness Ra of the turned end surfaces of the first-order oil path pipe, the second-order oil path pipe, the third-order oil path pipe, the fourth-order oil path pipe, the fifth-order oil path pipe, the sixth-order oil path pipe and the seventh-order oil path pipe in S4 is not more than 3.2.
Preferably, the surface roughness Ra of the grooves turned on the first-order oil circuit pipe, the second-order oil circuit pipe, the third-order oil circuit pipe, the fourth-order oil circuit pipe, the fifth-order oil circuit pipe, the sixth-order oil circuit pipe and the seventh-order oil circuit pipe in S8 is not more than 3.2.
Preferably, the material of the seal ring in S11 is NBR nitrile rubber.
Preferably, the pre-buried equipment adopts an imported submerged arc welding machine Isa, and the matching weight ratio of the welding wire to the welding flux is as follows: the flux is 1.1 to 1.6.
Compared with the prior art, the invention provides a processing method of an oil pipeline device, which has the following beneficial effects:
1. the oil pipe device and the processing method thereof prevent quality problems and financial resources from occurring in the later-stage craftsman process by performing internal flaw detection on a blank pipe before processing, ensure that the detected pipe has no blind area by manually performing transverse wave launching method in the flaw detection process, and perform excircle turning and grinding on the blank pipe after the flaw detection is completed, wherein all used tools adopt hard alloy indexable turning tools to shorten the tool changing and grinding time, improve the working efficiency and reduce the process cost, so that the surface roughness Ra value of the oil pipe is not more than 6.5, thereby being convenient for meeting the required surface roughness value in practical application after the assembly is completed, preventing rework and performing pipe division on the oil pipe, wherein before the flattening, an end face is required to be firstly, the surface roughness Ra value is not more than 3.2, the precision value in the range can ensure the sealing performance of the oil pipe after the assembly is turned off, the method is characterized in that fluid leakage is prevented, after a first-order oil circuit pipe, a second-order oil circuit pipe, a third-order oil circuit pipe, a fourth-order oil circuit pipe, a fifth-order oil circuit pipe, a sixth-order oil circuit pipe and a seventh-order oil circuit pipe are turned off, the end faces of the oil pipes need to be further polished to ensure matching tightness of the oil pipes, then inner holes are machined in the first-order oil circuit pipe, the second-order oil circuit pipe, the third-order oil circuit pipe, the fourth-order oil circuit pipe, the fifth-order oil circuit pipe, the sixth-order oil circuit pipe and the seventh-order oil circuit pipe, so that important components of the special-shaped oil pipe are completed, and the roughness value Ra of the surfaces of the machined inner.
After the turning of the inner hole is finished, a turning tool is replaced, two end faces of a second-order oil path pipe, a third-order oil path pipe, a fourth-order oil path pipe, a fifth-order oil path pipe and a sixth-order oil path pipe are respectively turned with grooves, grooves are turned on the end faces of the first-order oil path pipe, the second-order oil path pipe and the end faces of the seventh-order oil path pipe and the sixth-order oil path pipe, the surface roughness Ra of the grooves of all the oil path pipes is not more than 3.2, so that when the sealing rings are increased inside, the sealing performance of the sealing rings is enhanced, after the grooves are turned, the sealing rings are added into the grooves, submerged-arc welding is carried out on the oil path pipes of all orders by using a pre-buried welding machine, and the weight ratio of: the welding flux is 1.4, so that the welded pipeline has enough pressure resistance in a later hydraulic pressure test.
Drawings
Fig. 1 is a schematic structural diagram of an oil line pipe device according to the present invention.
In the figure: 1. a first-order oil line pipe; 2. a second-order oil line pipe; 3. a third-order oil line pipe; 4. a fourth-order oil line pipe; 5. a fifth-order oil line pipe; 6. a sixth-order oil line pipe; 7. a seven-stage oil line pipe; 101. and (4) a groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example (b):
referring to fig. 1, an oil circuit pipe device comprises an oil circuit pipe, wherein the oil circuit pipe comprises a first-order oil circuit pipe 1, a second-order oil circuit pipe 2, a third-order oil circuit pipe 3, a fourth-order oil circuit pipe 4, a fifth-order oil circuit pipe 5, a sixth-order oil circuit pipe 6 and a seventh-order oil circuit pipe 7, and grooves 101 are formed in the first-order oil circuit pipe 1, the second-order oil circuit pipe 2, the third-order oil circuit pipe 3, the fourth-order oil circuit pipe 4, the fifth-order oil circuit pipe 5, the sixth-order oil circuit pipe 6 and the seventh-order oil circuit pipe 7.
A processing method of an oil pipeline device comprises the following processing steps:
s1: firstly, putting a processed blank pipe material into an X-ray chamber, and carrying out internal flaw detection on the blank pipe material by using X-rays to ensure that no crack exists in the pipeline;
s2: after flaw detection is qualified, fixing one end of a cylindrical solid blank tube material on a three-jaw chuck of a lathe, propping the center of the cylinder by a thimble to fix the other end of the cylindrical solid blank tube material, and mounting an excircle turning tool on the lathe;
s3: starting a lathe, and turning the cylindrical solid blank pipe material;
s4: stopping the lathe after the outer circle turning is finished;
s5: the excircle turning tool of the lathe is replaced by a turning-off turning tool without using a thimble;
s6: starting a lathe, wherein the thicknesses of the cut-off pipe materials are respectively the thicknesses of a first-order oil circuit pipe 1, a second-order oil circuit pipe 2, a third-order oil circuit pipe 3, a fourth-order oil circuit pipe 4, a fifth-order oil circuit pipe 5, a sixth-order oil circuit pipe 6 and a seventh-order oil circuit pipe 7;
s7: after the blanking is finished, stopping the lathe, and replacing the turning-off lathe tool with an inner bore lathe tool;
s8: performing heat treatment on a first-order oil circuit pipe 1, a second-order oil circuit pipe 2, a third-order oil circuit pipe 3, a fourth-order oil circuit pipe 4, a fifth-order oil circuit pipe 5, a sixth-order oil circuit pipe 6 and a seventh-order oil circuit pipe 7 which are turned off, and respectively clamping the oil circuit pipes on a three-jaw chuck of a lathe after the heat treatment is completed to turn inner holes of the oil circuit pipes;
s9: placing the oil path pipe body after turning the inner hole aside for standby, stopping the lathe, and replacing the inner hole lathe tool with a turning groove lathe tool;
s10: respectively clamping a first-order oil circuit pipe 1, a second-order oil circuit pipe 2, a third-order oil circuit pipe 3, a fourth-order oil circuit pipe 4, a fifth-order oil circuit pipe 5, a sixth-order oil circuit pipe 6 and a seventh-order oil circuit pipe 7 which are provided with inner holes by turning on a three-jaw chuck of a lathe, and turning a groove 101 by using a grooving turning tool;
s11: after the grooving is finished, starting pre-embedded equipment, adding sealing rings into grooves 101 of a first-order oil path pipe 1 and a second-order oil path pipe 2, aligning, welding inner and outer circular joints, sequentially welding a third-order oil path pipe 3, a fourth-order oil path pipe 4, a fifth-order oil path pipe 5, a sixth-order oil path pipe 6 and a seventh-order oil path pipe 7, and finally assembling an oil path pipe whole;
s12: sequentially carrying out X-ray detection, ultrasonic detection and water pressure test on the welded oil pipeline;
s13: and after the test is qualified, performing anticorrosive treatment on the inner wall and the outer wall of the oil way pipe.
Both the X-ray and ultrasonic inspection methods in S1 and S12 employ a transverse wave reflection method to perform inspection in a state where the probe and the steel pipe are relatively moved.
S2, S5, S7 and S9 all use cemented carbide indexable turning tools.
The surface roughness Ra of the first-order oil circuit pipe 1, the second-order oil circuit pipe 2, the third-order oil circuit pipe 3, the fourth-order oil circuit pipe 4, the fifth-order oil circuit pipe 5, the sixth-order oil circuit pipe 6 and the seventh-order oil circuit pipe 7 in the S2 after the excircle turning is not more than 6.5.
Surface roughness Ra of the first-order oil circuit pipe 1, the second-order oil circuit pipe 2, the third-order oil circuit pipe 3, the fourth-order oil circuit pipe 4, the fifth-order oil circuit pipe 5, the sixth-order oil circuit pipe 6 and the seventh-order oil circuit pipe 7 in the S6 after inner holes are turned is not more than 3.2.
The surface roughness Ra of the turned end surfaces of the first-order oil circuit pipe 1, the second-order oil circuit pipe 2, the third-order oil circuit pipe 3, the fourth-order oil circuit pipe 4, the fifth-order oil circuit pipe 5, the sixth-order oil circuit pipe 6 and the seventh-order oil circuit pipe 7 in the S4 is not more than 3.2.
The surface roughness Ra of the grooves 102 turned on the first-order oil circuit pipe 1, the second-order oil circuit pipe 2, the third-order oil circuit pipe 3, the fourth-order oil circuit pipe 4, the fifth-order oil circuit pipe 5, the sixth-order oil circuit pipe 6 and the seventh-order oil circuit pipe 7 in S8 is not more than 3.2.
The material of the sealing ring in S11 is NBR nitrile rubber.
The pre-buried equipment adopts an imported submerged arc welding machine Isa, and the matching weight ratio of welding wires and welding flux is as follows: the flux is 1.1 to 1.6.
The working principle is as follows: in the invention, the internal flaw detection is carried out on the blank pipe before the processing, the quality problem and the financial resource consumption in the later craftsman process are prevented, in the flaw detection process, the transverse wave emission method is manually adopted to carry out the flaw detection on the blank pipe, the detected pipe is ensured not to have a blind area, the excircle turning and grinding are carried out on the blank pipe after the flaw detection is finished, all the tools are hard alloy indexable turning tools at the position so as to shorten the tool changing and grinding time, improve the working efficiency and reduce the process cost, the surface roughness Ra value of the oil pipe is not more than 6.5, thus being convenient for meeting the required surface roughness value in practical application after the assembly is finished and preventing rework, the oil pipe is divided, one end surface is firstly turned flat before the operation, the surface roughness Ra value is not more than 3.2, the precision value in the range can ensure the sealing performance of the oil pipe after the turning assembly is broken and the leakage of fluid is prevented, after the first-order oil path pipe 1, the second-order oil path pipe 2, the third-order oil path pipe 3, the fourth-order oil path pipe 4, the fifth-order oil path pipe 5, the sixth-order oil path pipe 6 and the seventh-order oil path pipe 7 are turned off, the end faces of the oil pipes are further polished to ensure the matching tightness of the oil pipes, then inner holes are machined in the first-order oil path pipe 1, the second-order oil path pipe 2, the third-order oil path pipe 3, the fourth-order oil path pipe 4, the fifth-order oil path pipe 5, the sixth-order oil path pipe 6 and the seventh-order oil path pipe 7, so that the important component parts of the special-shaped oil pipe are completed, and the roughness Ra of the surfaces of the turned inner holes is not more than 3.2.
After the inner hole is turned, a turning tool is replaced, grooves 101 are turned on two end faces of a second-order oil path pipe 2, a third-order oil path pipe 3, a fourth-order oil path pipe 4, a fifth-order oil path pipe 5 and a sixth-order oil path pipe 6 respectively, the grooves 101 are formed in the end faces of a first-order oil path pipe 1, the end faces of a second-order oil path pipe 2, the end faces of a seventh-order oil path pipe 7 and the end faces of a sixth-order oil path pipe 6, the surface roughness Ra of the grooves 101 of all the oil path pipes is not more than 3.2, so that when sealing rings are added inside, the sealing performance of the grooves is enhanced, after the grooves are turned, sealing rings are added into the grooves 101, submerged-arc welding is carried out on the oil path pipes of all orders by using a pre-buried welding machine, and: the welding flux is 1.4, so that the welded pipeline has enough pressure resistance in a later hydraulic pressure test.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. An oil circuit pipe device comprises an oil circuit pipe, and is characterized in that the oil circuit pipe comprises a first-order oil circuit pipe (1), a second-order oil circuit pipe (2), a third-order oil circuit pipe (3), a fourth-order oil circuit pipe (4), a fifth-order oil circuit pipe (5), a sixth-order oil circuit pipe (6) and a seventh-order oil circuit pipe (7), wherein grooves (101) are formed in the first-order oil circuit pipe (1), the second-order oil circuit pipe (2), the third-order oil circuit pipe (3), the fourth-order oil circuit pipe (4), the fifth-order oil circuit pipe (5), the sixth-order oil circuit pipe (6) and the seventh-order oil circuit pipe (7);
the oil path pipe device comprises a processing method of the oil path pipe device, and the processing steps are as follows:
s1: firstly, putting a processed blank pipe material into an X-ray chamber, and carrying out internal flaw detection on the blank pipe material by using X-rays to ensure that no crack exists in the pipeline;
s2: after flaw detection is qualified, fixing one end of a cylindrical solid blank tube material on a three-jaw chuck of a lathe, propping the center of the cylinder by a thimble to fix the other end of the cylindrical solid blank tube material, and mounting an excircle turning tool on the lathe;
s3: starting a lathe, and turning the cylindrical solid blank pipe material;
s4: stopping the lathe after the outer circle turning is finished;
s5: the excircle turning tool of the lathe is replaced by a turning-off turning tool without using a thimble;
s6: starting a lathe, wherein the thicknesses of the cut pipe materials are respectively the thicknesses of a first-order oil circuit pipe (1), a second-order oil circuit pipe (2), a third-order oil circuit pipe (3), a fourth-order oil circuit pipe (4), a fifth-order oil circuit pipe (5), a sixth-order oil circuit pipe (6) and a seventh-order oil circuit pipe (7);
s7: after the blanking is finished, stopping the lathe, and replacing the turning-off lathe tool with an inner bore lathe tool;
s8: performing heat treatment on a first-order oil path pipe (1), a second-order oil path pipe (2), a third-order oil path pipe (3), a fourth-order oil path pipe (4), a fifth-order oil path pipe (5), a sixth-order oil path pipe (6) and a seventh-order oil path pipe (7) which are turned off, and respectively clamping the oil path pipes on a three-jaw chuck of a lathe after the heat treatment is completed to turn inner holes of the oil path pipes;
s9: placing the oil path pipe body after turning the inner hole aside for standby, stopping the lathe, and replacing the inner hole lathe tool with a turning groove lathe tool;
s10: respectively clamping a first-order oil path pipe (1), a second-order oil path pipe (2), a third-order oil path pipe (3), a fourth-order oil path pipe (4), a fifth-order oil path pipe (5), a sixth-order oil path pipe (6) and a seventh-order oil path pipe (7) which are provided with inner holes, on a three-jaw chuck of a lathe, and turning a groove by using a turning tool;
s11: after the groove turning is finished, starting pre-buried equipment, adding sealing rings into grooves (101) of a first-order oil path pipe (1) and a second-order oil path pipe (2), aligning to weld an inner circular seam and an outer circular seam, sequentially welding a third-order oil path pipe (3), a fourth-order oil path pipe (4), a fifth-order oil path pipe (5), a sixth-order oil path pipe (6) and a seventh-order oil path pipe (7), and finally assembling an oil path pipe whole;
s12: sequentially carrying out X-ray detection, ultrasonic detection and water pressure test on the welded oil pipeline;
s13: and after the test is qualified, performing anticorrosive treatment on the inner wall and the outer wall of the oil way pipe.
2. The method of claim 1, wherein the X-ray and ultrasonic inspection and flaw detection methods in S1 and S12 are performed by a transverse wave reflection method in a state where the probe and the steel pipe are relatively moved.
3. The method for machining the oil pipe device according to claim 1, wherein cemented carbide indexable turning tools are used for the steps S2, S5, S7 and S9.
4. The machining method of the oil circuit pipe device according to claim 1, wherein the surface roughness Ra of the first-order oil circuit pipe (1), the second-order oil circuit pipe (2), the third-order oil circuit pipe (3), the fourth-order oil circuit pipe (4), the fifth-order oil circuit pipe (5), the sixth-order oil circuit pipe (6) and the seventh-order oil circuit pipe (7) in the S2 after the excircle turning is not more than 6.5.
5. The machining method of the oil circuit pipe device according to claim 1, wherein the surface roughness Ra of the first-order oil circuit pipe (1), the second-order oil circuit pipe (2), the third-order oil circuit pipe (3), the fourth-order oil circuit pipe (4), the fifth-order oil circuit pipe (5), the sixth-order oil circuit pipe (6) and the seventh-order oil circuit pipe (7) in the S6 after inner holes are turned is not more than 3.2.
6. The machining method of the oil circuit pipe device according to claim 1, wherein the surface roughness Ra of the turned end surfaces of the first-order oil circuit pipe (1), the second-order oil circuit pipe (2), the third-order oil circuit pipe (3), the fourth-order oil circuit pipe (4), the fifth-order oil circuit pipe (5), the sixth-order oil circuit pipe (6) and the seventh-order oil circuit pipe (7) in the S4 is not more than 3.2.
7. The machining method of the oil circuit pipe device according to claim 1, wherein the surface roughness Ra of the grooves (101) turned on the first-order oil circuit pipe (1), the second-order oil circuit pipe (2), the third-order oil circuit pipe (3), the fourth-order oil circuit pipe (4), the fifth-order oil circuit pipe (5), the sixth-order oil circuit pipe (6) and the seventh-order oil circuit pipe (7) in the S8 is not more than 3.2.
8. The method as claimed in claim 1, wherein the seal ring of S11 is NBR nitrile rubber.
9. The processing method of the oil pipe device according to claim 1, wherein the pre-buried equipment adopts an imported submerged arc welding machine Isa, and the matching weight ratio of the welding wire to the welding flux is as follows: the flux is 1.1 to 1.6.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910786223.8A CN110500448B (en) | 2019-08-24 | 2019-08-24 | Oil pipeline device and machining method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910786223.8A CN110500448B (en) | 2019-08-24 | 2019-08-24 | Oil pipeline device and machining method thereof |
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| CN110500448A CN110500448A (en) | 2019-11-26 |
| CN110500448B true CN110500448B (en) | 2020-12-29 |
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| CN204284703U (en) * | 2014-12-01 | 2015-04-22 | 盐城苏工高科机械有限公司 | A kind of pressure oil pipe |
| CN106584036A (en) * | 2016-12-28 | 2017-04-26 | 江苏恒才液压机械制造有限公司 | Welded type seamless tube machining method |
| EP3270029A1 (en) * | 2015-03-12 | 2018-01-17 | Zhaohui Zhou | Two-branch or multi-branch double-layer wear-and-impact-resistant tube and manufacturing method thereof |
| CN208793814U (en) * | 2018-08-24 | 2019-04-26 | 浙江长峰新材料有限公司 | A kind of nickel-based alloy pipe |
| CN208997509U (en) * | 2018-09-03 | 2019-06-18 | 西门子（中国）有限公司 | Flange connecting apparatus |
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2019
- 2019-08-24 CN CN201910786223.8A patent/CN110500448B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204284703U (en) * | 2014-12-01 | 2015-04-22 | 盐城苏工高科机械有限公司 | A kind of pressure oil pipe |
| EP3270029A1 (en) * | 2015-03-12 | 2018-01-17 | Zhaohui Zhou | Two-branch or multi-branch double-layer wear-and-impact-resistant tube and manufacturing method thereof |
| CN106584036A (en) * | 2016-12-28 | 2017-04-26 | 江苏恒才液压机械制造有限公司 | Welded type seamless tube machining method |
| CN208793814U (en) * | 2018-08-24 | 2019-04-26 | 浙江长峰新材料有限公司 | A kind of nickel-based alloy pipe |
| CN208997509U (en) * | 2018-09-03 | 2019-06-18 | 西门子（中国）有限公司 | Flange connecting apparatus |
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| CN110500448A (en) | 2019-11-26 |
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