CN108531132B - Wear-resistant material, sealing retainer ring and natural gas pipeline ripple compensator - Google Patents
Wear-resistant material, sealing retainer ring and natural gas pipeline ripple compensator Download PDFInfo
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- CN108531132B CN108531132B CN201810554238.7A CN201810554238A CN108531132B CN 108531132 B CN108531132 B CN 108531132B CN 201810554238 A CN201810554238 A CN 201810554238A CN 108531132 B CN108531132 B CN 108531132B
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- 238000007789 sealing Methods 0.000 title claims abstract description 79
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 239000000463 material Substances 0.000 title claims abstract description 37
- 239000003345 natural gas Substances 0.000 title claims abstract description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 32
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910000616 Ferromanganese Inorganic materials 0.000 claims abstract description 16
- 229910001200 Ferrotitanium Inorganic materials 0.000 claims abstract description 16
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 16
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052796 boron Inorganic materials 0.000 claims abstract description 16
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 16
- 239000011733 molybdenum Substances 0.000 claims abstract description 16
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 16
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 16
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 16
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims abstract description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000003466 welding Methods 0.000 claims abstract description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 5
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 11
- 239000007789 gas Substances 0.000 abstract description 6
- 239000002994 raw material Substances 0.000 description 25
- 238000001354 calcination Methods 0.000 description 12
- 238000005299 abrasion Methods 0.000 description 10
- 238000001816 cooling Methods 0.000 description 8
- 238000001035 drying Methods 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000003837 high-temperature calcination Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000005498 polishing Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005303 weighing Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
- C09K3/1436—Composite particles, e.g. coated particles
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
-
- 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
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Products (AREA)
- Diaphragms And Bellows (AREA)
Abstract
The invention discloses a wear-resistant material, a sealing retainer ring and a natural gas pipeline ripple compensator, which relates to the field of ripple compensators, wherein the wear-resistant material is prepared from 2-16 parts of molybdenum, 1-12 parts of boron, 10-28 parts of tungsten carbide, 6-20 parts of titanium oxide, 4-16 parts of ferroboron, 1-12 parts of ferrotitanium, 1-10 parts of nitrogen ferromanganese and 6-20 parts of silicon dioxide in parts by weight. The natural gas pipeline corrugated compensator can prevent the welding seam between the guide cylinder and the connecting pipe from being worn and cracked by natural gas for a long time, thereby preventing the corrugated pipe from being directly worn and leaked by gas.
Description
Technical Field
The invention relates to the field of corrugated compensators, in particular to a wear-resistant material, a sealing retainer ring and a natural gas pipeline corrugated compensator.
Background
The corrugated compensator is one compensating element for absorbing the size change of pipeline, pipe, container, etc. caused by expansion and contraction, or compensating the axial, transverse and angular displacement of pipeline, pipe, container, etc. and may be used in noise reducing and vibration reducing. Has wide application in modern industry. A 'V' -shaped structure
When the gas medium passes through the corrugated compensator guide cylinder in the prior art at a high speed, the gas medium directly washes the welding seam part between the guide cylinder and the connecting pipe, the welding seam between the corrugated compensator guide cylinder and the connecting pipe is worn under the washing of the gas medium, the welding seam between the corrugated compensator guide cylinder and the connecting pipe is cracked or falls off when serious, and the welding seam between the corrugated compensator guide cylinder and the connecting pipe is cracked or falls off to cause the gas medium to directly wash and wear the corrugated compensator corrugated pipe, so that the corrugated pipe is worn and leaked. Therefore, hidden danger of cracking or falling of a welding seam between the guide cylinder and the connecting pipe in the ripple compensator in the prior art can cause that a medium directly erodes and wears the corrugated pipe of the ripple compensator, so that the corrugated pipe is worn and leaked.
Disclosure of Invention
A first object of the present invention is to provide a wear resistant material.
The wear-resistant material is prepared from 2-16 parts of molybdenum, 1-12 parts of boron, 10-28 parts of tungsten carbide, 6-20 parts of titanium oxide, 4-16 parts of ferroboron, 1-12 parts of ferrotitanium, 1-10 parts of nitrogen-containing ferromanganese and 6-20 parts of silicon dioxide in parts by weight.
Preferably, the alloy is prepared from 4 to 14 parts of molybdenum, 2 to 10 parts of boron, 12 to 26 parts of tungsten carbide, 8 to 18 parts of titanium oxide, 6 to 14 parts of ferroboron, 2 to 10 parts of ferrotitanium, 2 to 8 parts of nitrogen-containing ferromanganese and 8 to 18 parts of silicon dioxide in parts by weight.
Preferably, the alloy is prepared from 6 to 12 parts of molybdenum, 3 to 9 parts of boron, 16 to 24 parts of tungsten carbide, 10 to 16 parts of titanium oxide, 8 to 12 parts of ferroboron, 3 to 9 parts of ferrotitanium, 3 to 6 parts of nitrogen-containing ferromanganese and 10 to 16 parts of silicon dioxide in parts by weight.
Preferably, the alloy is prepared from 9 parts of molybdenum, 6 parts of boron, 20 parts of tungsten carbide, 13 parts of titanium oxide, 10 parts of ferroboron, 6 parts of ferrotitanium, 4.5 parts of ferromanganese containing nitrogen and 13 parts of silicon dioxide in parts by weight.
A method of manufacturing a wear resistant material comprising the steps of:
1) Uniformly mixing 2-16 parts of molybdenum, 1-12 parts of boron, 10-28 parts of tungsten carbide, 6-20 parts of titanium oxide, 4-16 parts of ferroboron, 1-12 parts of ferrotitanium, 1-10 parts of nitrogen-containing ferromanganese and 6-20 parts of silicon dioxide to form a mixed raw material, and placing the mixed raw material into a high-temperature furnace with the temperature of 400-900 ℃ for calcination, wherein the calcination time lasts for 2-4 hours;
2) After the mixed raw materials are calcined, cooling to room temperature, putting the mixed raw materials into a ball mill for grinding until the average particle size of the powder is 0.1-10um, taking out and drying;
3) And finally, placing the ground and dried mixed raw materials into a die for high-temperature calcination, heating to 1500-1800 ℃, continuously calcining for 2-5h, cooling the mixed raw materials to room temperature after the calcination is finished, and taking out.
A second object of the invention is to provide a sealing collar.
A sealing retainer ring is made of the wear-resistant material.
Preferably, the sealing retainer ring is of a ring-shaped structure, the sealing retainer ring is provided with a groove surrounding the edge, and one surface of the sealing retainer ring is provided with a convex ring.
Preferably, the circular ring and the sealing retainer ring are integrally formed. By adopting the structure, the structure of the sealing retainer ring is more stable.
Preferably, the grooves are provided with more than one, and the grooves are distributed at equal intervals. By adopting the structure, the multiple protection effect is achieved.
Preferably, a sealing ring is arranged on the groove. By adopting the structure, the sealing performance of the sealing retainer ring is further improved.
A third object of the present invention is to provide a natural gas pipeline corrugated compensator which can prevent a weld joint between a guide cylinder and a connection pipe from being broken by natural gas scour abrasion for a long time, thereby preventing a corrugated pipe from being directly leaked by gas scour abrasion.
The utility model provides a natural gas pipeline ripple compensator, includes bellows, guide cone and as above-mentioned sealing ring, the bellows both ends are provided with the takeover, and the takeover all is provided with the flange, the flange that the bellows both ends were taken over adopts the screw rod to connect and is fixed by adjusting nut, the guide cone sets up between the bellows both ends takeover, the terminal surface of guide cone is equipped with the ring groove, ring groove and sealing ring on the sealing ring looks match, sealing ring passes through the combination of ring and ring groove and is connected with the guide cone, sealing ring and guide cone welding, sealing ring's edge and the inner wall welding of takeover.
The beneficial effects of the invention are as follows:
1. the wear-resistant material has excellent wear resistance under the interaction of the raw materials;
2. according to the sealing check ring, the groove surrounding the edge is formed, so that the sealing check ring has a double sealing structure, and when one side of the edge of the sealing check ring is damaged, the other side of the sealing check ring also has a sealing effect, so that the sealing effect is prevented from being lost after the edge of the sealing check ring is damaged at one time, and the safety is high;
3. the natural gas pipeline corrugated compensator is provided with the sealing check ring, so that the sealing performance is improved, in addition, the sealing check ring is welded on the guide cylinder through the combination of the circular ring and the circular ring groove, and the sealing performance of the sealing check ring is further improved;
4. the natural gas pipeline corrugated compensator can adjust the length of the corrugated pipe by using the adjusting nut, does not cause bending of the corrugated pipe, is not easy to crack, and is safe and reliable.
Drawings
Fig. 1 is a schematic structural diagram of a natural gas pipeline corrugated compensator according to an embodiment of the present invention.
Fig. 2 is an enlarged view of a in fig. 1.
FIG. 3 is a schematic cross-sectional view of a sealing collar in an embodiment of the present invention.
Fig. 4 is a schematic cross-sectional view of a guide shell in an embodiment of the invention.
Reference numerals: 1. a sealing retainer ring; 2. a groove; 3. a circular ring; 4. a seal ring; 5. a bellows; 6. a guide cylinder; 7. connecting pipe; 8. a flange; 9. a screw; 10. an adjusting nut; 11. circular ring groove.
Detailed Description
Example 1
A wear-resistant material is prepared from 16 parts of molybdenum, 12 parts of boron, 28 parts of tungsten carbide, 6 parts of titanium oxide, 4 parts of ferroboron, 1 part of ferrotitanium, 1 part of ferromanganese containing nitrogen and 6 parts of silicon dioxide in parts by weight.
A method of manufacturing a wear resistant material comprising the steps of:
1) Uniformly mixing 16 parts of molybdenum, 12 parts of boron, 28 parts of tungsten carbide, 6 parts of titanium oxide, 4 parts of ferroboron, 1 part of ferrotitanium, 1 part of nitrogen-containing ferromanganese and 6 parts of silicon dioxide to form a mixed raw material, and placing the mixed raw material into a high-temperature furnace with the temperature of 400-900 ℃ to be calcined for 2 hours;
2) After the mixed raw materials are calcined, cooling to room temperature, putting the mixed raw materials into a ball mill for grinding until the average particle size of the powder is 0.1um, taking out and drying;
3) And finally, placing the ground and dried mixed raw materials into a die for high-temperature calcination, heating to 1500 ℃, continuously calcining for 2 hours, cooling the mixed raw materials to room temperature after the calcination is finished, and taking out.
As shown in fig. 1-3, a sealing collar 1 is made of the wear-resistant material described above. The sealing retainer ring 1 is of a circular ring 3-shaped structure, the sealing retainer ring 1 is provided with a groove 2 surrounding the edge, one surface of the sealing retainer ring 1 is provided with a convex circular ring 3, the circular ring 3 and the sealing retainer ring 1 are integrally formed, and the groove 2 is provided with a sealing ring 4.
As shown in fig. 1-4, a corrugated compensator for a natural gas pipeline comprises a corrugated pipe 5, a guide cylinder 6 and a sealing retainer ring 1 as described above, wherein connecting pipes 7 are arranged at two ends of the corrugated pipe 5, flanges 8 are arranged at the connecting pipes 7, the flanges 8 of the connecting pipes 7 at two ends of the corrugated pipe 5 are connected by screw rods 9 and are fixed by adjusting nuts 10, the guide cylinder 6 is arranged between the connecting pipes 7 at two ends of the corrugated pipe 5, a circular groove 11 is arranged at one end face of the guide cylinder 6, the circular groove 11 is matched with the circular ring 3 on the sealing retainer ring 1, the sealing retainer ring 1 is connected with the guide cylinder 6 through combination of the circular ring 3 and the circular groove 11, the sealing retainer ring 1 is welded with the guide cylinder 6, and the edge of the sealing retainer ring 1 is welded with the inner wall of the connecting pipe 7.
Example 2
The wear-resistant material is prepared from 2 parts of molybdenum, 1 part of boron, 10 parts of tungsten carbide, 20 parts of titanium oxide, 16 parts of ferroboron, 12 parts of ferrotitanium, 10 parts of nitrogen-containing ferromanganese and 20 parts of silicon dioxide in parts by weight.
A method of manufacturing a wear resistant material comprising the steps of:
1) Uniformly mixing 2 parts of molybdenum, 1 part of boron, 10 parts of tungsten carbide, 20 parts of titanium oxide, 16 parts of ferroboron, 12 parts of ferrotitanium, 10 parts of nitrogen-containing ferromanganese and 20 parts of silicon dioxide to form a mixed raw material, and placing the mixed raw material into a high-temperature furnace with the temperature of 400-900 ℃ to be calcined for 4 hours;
2) After the mixed raw materials are calcined, cooling to room temperature, putting the mixed raw materials into a ball mill for grinding until the average particle size of the powder is 10um, taking out and drying;
3) And finally, placing the ground and dried mixed raw materials into a die for high-temperature calcination, heating to 1800 ℃, continuously calcining for 5 hours, cooling the mixed raw materials to room temperature after the calcination is finished, and taking out.
As shown in fig. 1-3, a sealing collar 1 is made of the wear-resistant material described above. The sealing retainer ring 1 is of a circular ring 3-shaped structure, the sealing retainer ring 1 is provided with a groove 2 surrounding the edge, one surface of the sealing retainer ring 1 is provided with a convex circular ring 3, the circular ring 3 and the sealing retainer ring 1 are integrally formed, and the groove 2 is provided with a sealing ring 4.
As shown in fig. 1-4, a corrugated compensator for a natural gas pipeline comprises a corrugated pipe 5, a guide cylinder 6 and a sealing retainer ring 1 as described above, wherein connecting pipes 7 are arranged at two ends of the corrugated pipe 5, flanges 8 are arranged at the connecting pipes 7, the flanges 8 of the connecting pipes 7 at two ends of the corrugated pipe 5 are connected by screw rods 9 and are fixed by adjusting nuts 10, the guide cylinder 6 is arranged between the connecting pipes 7 at two ends of the corrugated pipe 5, a circular groove 11 is arranged at one end face of the guide cylinder 6, the circular groove 11 is matched with the circular ring 3 on the sealing retainer ring 1, the sealing retainer ring 1 is connected with the guide cylinder 6 through combination of the circular ring 3 and the circular groove 11, the sealing retainer ring 1 is welded with the guide cylinder 6, and the edge of the sealing retainer ring 1 is welded with the inner wall of the connecting pipe 7.
Example 3
The wear-resistant material is prepared from 9 parts of molybdenum, 6.5 parts of boron, 19 parts of tungsten carbide, 13 parts of titanium oxide, 10 parts of ferroboron, 6.5 parts of ferrotitanium, 5.5 parts of nitrogen-containing ferromanganese and 13 parts of silicon dioxide in parts by weight.
A method of manufacturing a wear resistant material comprising the steps of:
1) Uniformly mixing 9 parts of molybdenum, 6.5 parts of boron, 19 parts of tungsten carbide, 13 parts of titanium oxide, 10 parts of ferroboron, 6.5 parts of ferrotitanium, 5.5 parts of nitrogen-containing ferromanganese and 13 parts of silicon dioxide to form a mixed raw material, and placing the mixed raw material into a high-temperature furnace with the temperature of 650 ℃ for calcination, wherein the calcination time lasts for 3 hours;
2) After the mixed raw materials are calcined, cooling to room temperature, putting the mixed raw materials into a ball mill for grinding until the average particle size of the powder is 5.05um, taking out and drying;
3) And finally, placing the ground and dried mixed raw materials into a die for high-temperature calcination, heating to 1650 ℃, continuously calcining for 3.5h, cooling the mixed raw materials to room temperature after the calcination is finished, and taking out.
As shown in fig. 1-3, a sealing collar 1 is made of the wear-resistant material described above. The sealing retainer ring 1 is of a circular ring 3-shaped structure, the sealing retainer ring 1 is provided with a groove 2 surrounding the edge, one surface of the sealing retainer ring 1 is provided with a convex circular ring 3, the circular ring 3 and the sealing retainer ring 1 are integrally formed, and the groove 2 is provided with a sealing ring 4.
As shown in fig. 1-4, a corrugated compensator for a natural gas pipeline comprises a corrugated pipe 5, a guide cylinder 6 and a sealing retainer ring 1 as described above, wherein connecting pipes 7 are arranged at two ends of the corrugated pipe 5, flanges 8 are arranged at the connecting pipes 7, the flanges 8 of the connecting pipes 7 at two ends of the corrugated pipe 5 are connected by screw rods 9 and are fixed by adjusting nuts 10, the guide cylinder 6 is arranged between the connecting pipes 7 at two ends of the corrugated pipe 5, a circular groove 11 is arranged at one end face of the guide cylinder 6, the circular groove 11 is matched with the circular ring 3 on the sealing retainer ring 1, the sealing retainer ring 1 is connected with the guide cylinder 6 through combination of the circular ring 3 and the circular groove 11, the sealing retainer ring 1 is welded with the guide cylinder 6, and the edge of the sealing retainer ring 1 is welded with the inner wall of the connecting pipe 7.
Experimental example
The experimental object: the abrasion resistant materials of examples 1 to 3 and general abrasion resistant materials.
The experimental method comprises the following steps: the abrasion resistant materials of examples 1 to 3 and the general abrasion resistant materials were respectively classified into an experimental group 1, an experimental group 2, an experimental group 3 and a control group, and the abrasion resistance of the four groups of abrasion resistant materials was tested, and the abrasion resistant materials of examples 1 to 3 and the general abrasion resistant materials were the same in size. The specific test method comprises the following steps: firstly weighing the weights of four groups of wear-resistant materials with the same size, polishing the four groups of wear-resistant materials with the same polishing equipment under the same parameters, wherein the polishing time is the same, and weighing the weights of the four groups of wear-resistant materials after polishing is finished.
The experimental results are shown in the following table:
therefore, the wear-resistant materials in the embodiments 1 to 3 of the invention have better wear resistance, and compared with the common wear-resistant materials, the wear-resistant materials have obviously improved wear resistance.
Claims (4)
1. The utility model provides a natural gas pipeline ripple compensator which characterized in that, includes bellows, guide cone and sealing ring, the bellows both ends are provided with the takeover, and the takeover all is provided with the flange, the flange that the bellows both ends takeover adopts the screw rod to connect and is fixed by adjusting nut, the guide cone sets up between the bellows both ends takeover, the one end face of guide cone is equipped with the ring groove, the ring groove matches with the ring on the sealing ring, the sealing ring passes through the combination of ring and ring groove and is connected with the guide cone, sealing ring and guide cone welding, sealing ring's edge and the inner wall welding of takeover;
the sealing check ring is of a circular ring structure, the sealing check ring is provided with a groove surrounding the edge, and one surface of the sealing check ring is provided with a convex circular ring; the grooves are arranged with more than one, and the grooves are distributed at equal intervals; a sealing ring is arranged on the groove;
the circular ring and the sealing retainer ring are integrally formed;
the sealing retainer ring is made of wear-resistant materials, wherein the wear-resistant materials are prepared from 2-16 parts of molybdenum, 1-12 parts of boron, 10-28 parts of tungsten carbide, 6-20 parts of titanium oxide, 4-16 parts of ferroboron, 1-12 parts of ferrotitanium, 1-10 parts of nitrogen-containing ferromanganese and 6-20 parts of silicon dioxide in parts by weight.
2. The natural gas pipeline ripple compensator of claim 1, wherein the wear-resistant material is prepared from, by weight, 4-14 parts of molybdenum, 2-10 parts of boron, 12-26 parts of tungsten carbide, 8-18 parts of titanium oxide, 6-14 parts of ferroboron, 2-10 parts of ferrotitanium, 2-8 parts of nitrogen-containing ferromanganese and 8-18 parts of silicon dioxide.
3. The natural gas pipeline ripple compensator of claim 1, wherein the wear-resistant material is prepared from 6-12 parts by weight of molybdenum, 3-9 parts by weight of boron, 16-24 parts by weight of tungsten carbide, 10-16 parts by weight of titanium oxide, 8-12 parts by weight of ferroboron, 3-9 parts by weight of ferrotitanium, 3-6 parts by weight of ferromanganese containing nitrogen and 10-16 parts by weight of silicon dioxide.
4. The natural gas pipeline ripple compensator of claim 1, wherein the wear-resistant material is prepared from 9 parts by weight of molybdenum, 6 parts by weight of boron, 20 parts by weight of tungsten carbide, 13 parts by weight of titanium oxide, 10 parts by weight of ferroboron, 6 parts by weight of ferrotitanium, 4.5 parts by weight of ferromanganese containing nitrogen and 13 parts by weight of silicon dioxide.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810554238.7A CN108531132B (en) | 2018-06-01 | 2018-06-01 | Wear-resistant material, sealing retainer ring and natural gas pipeline ripple compensator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810554238.7A CN108531132B (en) | 2018-06-01 | 2018-06-01 | Wear-resistant material, sealing retainer ring and natural gas pipeline ripple compensator |
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| Publication Number | Publication Date |
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| CN108531132A CN108531132A (en) | 2018-09-14 |
| CN108531132B true CN108531132B (en) | 2023-10-27 |
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| CN114857376B (en) * | 2022-05-10 | 2024-08-09 | 上海凌瀚船舶科技有限公司 | Expansion joint for liquefied natural gas ship |
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