CN112030038A - Ultralow-temperature corrugated compensation device - Google Patents
Ultralow-temperature corrugated compensation device Download PDFInfo
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- CN112030038A CN112030038A CN202010885606.3A CN202010885606A CN112030038A CN 112030038 A CN112030038 A CN 112030038A CN 202010885606 A CN202010885606 A CN 202010885606A CN 112030038 A CN112030038 A CN 112030038A
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- corrugated pipe
- alloy material
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
- C22F1/18—High-melting or refractory metals or alloys based thereon
- C22F1/183—High-melting or refractory metals or alloys based thereon of titanium or alloys based thereon
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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
- 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
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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
- 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
- F16L51/022—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with a single corrugation
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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
- F16L58/18—Protection of pipes or pipe fittings against corrosion or incrustation specially adapted for pipe fittings
Abstract
The invention belongs to the technical field of compensators, and particularly relates to an ultralow-temperature corrugated compensation device which comprises a corrugated pipe, wherein the corrugated pipe comprises a connecting part and a telescopic part which are arranged in a crossed manner, and the telescopic part is made of a titanium alloy material which is resistant to ultralow temperature and has high ductility under the ultralow temperature condition; the titanium alloy material comprises the following components in percentage by mass: the compensator comprises 6.0-8.0% of Zn, 4.0-8.0% of Gd, 0.2-0.6% of Al, less than 0.02% of impurity elements of Si, Fe, Cu and Ni and the balance of Ti, overcomes the defects of the prior art, adopts a titanium alloy material which is resistant to ultralow temperature and has high ductility under the ultralow temperature condition to prepare the expansion part of the corrugated pipe, and ensures that the compensator still has high strength and high ductility under the ultralow temperature condition.
Description
Technical Field
The invention belongs to the technical field of compensators, and particularly relates to an ultralow-temperature corrugated compensation device.
Background
The pipeline often bears stronger vibration and bigger displacement in the system, and the operation is in lower environment simultaneously, in order to guarantee the stability of system, need install bellows subassembly compensator in the system, the bellows subassembly is through the flexible connection of self, eliminates the internal stress that machining error, assembly error and temperature gradient brought in the hard coupling process of pipeline brought.
The existing compensator has the problems of poor ductility and easy breakage in an ultralow temperature state, and causes pipeline leakage.
Disclosure of Invention
The invention aims to provide an ultralow-temperature corrugated compensation device, which overcomes the defects of the prior art, adopts a titanium alloy material which is resistant to ultralow temperature and has high ductility under the ultralow temperature condition to prepare a telescopic part of a corrugated pipe, and ensures that a compensator still has high strength and high ductility under the ultralow temperature condition.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
an ultralow-temperature ripple compensation device comprises a corrugated pipe, wherein the corrugated pipe comprises a connecting part and a telescopic part which are arranged in a crossed manner, and the telescopic part is made of a titanium alloy material which is resistant to ultralow temperature and has high ductility under the ultralow temperature condition;
the titanium alloy material comprises the following components in percentage by mass: 6.0 to 8.0 percent of Zn, 4.0 to 8.0 percent of Gd, 0.2 to 0.6 percent of Al, less than 0.02 percent of the total amount of impurity elements of Si, Fe, Cu and Ni and the balance of Ti.
Further, the specific preparation process of the titanium alloy material comprises the following steps:
(1) weighing various raw materials according to the metal proportion, and respectively placing the raw materials in an oven for preheating at the preheating temperature of 150-200 ℃ for 2-3 h;
(2) heating a melting furnace to 650-750 ℃, putting the preheated raw materials into the melting furnace for melting, introducing protective gas and a covering agent for protection in the melting process, stirring the alloy liquid by using a stirrer for 5-10 min after the raw materials are completely melted to uniformly mix the raw materials, and then removing slag on the surface of the alloy liquid;
(3) refining the alloy liquid by adopting Ar gas and a solvent, stirring and slagging off the melt, and then keeping the temperature at 700-720 ℃ and standing for 30-60 min for casting;
(4) turning the surface of the cast ingot blank, and processing the diameter and the length of the ingot blank to be matched with the inner diameter and the length of an extrusion cylinder of an extruder; putting the processed ingot blank into a heating furnace, heating to 300-400 ℃, and then preserving heat for 2-5 h;
(5) putting the heated ingot blank into a preheated extrusion cylinder for extrusion, wherein the extrusion speed is 1.0-5.0 m/min, the preheating temperature of the extrusion cylinder is 300-400 ℃, and the extrusion ratio is 10-50: 1, so as to obtain an extruded bar;
(6) the aging treatment is carried out on the extruded bar, and the process system is as follows: and (3) keeping the temperature at 150-200 ℃ for 15-30 h, and then air cooling to obtain the high-ductility titanium alloy material extrusion material.
Furthermore, a guide rod is arranged inside the corrugated pipe, the cross section of the guide rod is of a T-shaped structure, the outer side of the large end of the guide rod is welded with the edge of one end of the corrugated pipe, and a connecting flange is fixedly arranged at one end, far away from the welding position of the guide rod, of the corrugated pipe.
Furthermore, a connector used for being connected with the fixing device is formed in the surface of the large end of the guide rod, and the connector is connected with the fixing device in a welding or threaded connection mode.
Further, an outer lining ring used for improving welding strength is fixedly arranged on the outer side of the large end of the guide rod, and an inner lining ring used for improving supporting strength is fixedly arranged at the joint of the connecting flange and the corrugated pipe.
Further, the connecting part is made of an ultralow temperature resistant titanium-magnesium alloy material, and the connecting part and the telescopic part are fixedly connected in a welding mode.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the expansion part of the corrugated pipe is prepared by adopting the titanium alloy material which is resistant to ultralow temperature and has high ductility under the ultralow temperature condition, so that the compensator still has high strength and high ductility under the ultralow temperature condition.
2. According to the invention, through the mode that one end of the corrugated pipe is connected with the pipeline and the other end of the corrugated pipe is connected with the fixing device, the fluid in the pipeline is prevented from flowing through the corrugated pipe, and the probability of corrosion of the corrugated pipe by the fluid is reduced.
3. The mechanical property indexes of the titanium alloy material are as follows: the room temperature tensile strength is 320-350 MPa, the room temperature yield strength is 280-300 MPa, the room temperature elongation is more than 15%, and the ultralow temperature elongation is 100-300%
Drawings
Fig. 1 is a schematic structural view of an ultra-low temperature ripple compensating apparatus.
Fig. 2 is a schematic structural view of a bellows in an ultra-low temperature bellows compensation device.
In the figure: 1. a bellows; 11. a connecting portion; 12. a telescopic part; 2. a guide bar; 21. a connecting port; 3. an outer liner ring; 4. a connecting flange; 5. and a lining ring.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-2, the ultralow temperature corrugation compensation device of the present invention comprises a corrugated pipe 1, wherein the corrugated pipe 1 comprises a connection part 11 and an expansion part 12 which are arranged in a crossed manner, and the expansion part 12 is made of a titanium alloy material which is resistant to ultralow temperature and has high ductility under ultralow temperature conditions;
the titanium alloy material comprises the following components in percentage by mass: 6.0 to 8.0 percent of Zn, 4.0 to 8.0 percent of Gd, 0.2 to 0.6 percent of Al, less than 0.02 percent of the total amount of impurity elements of Si, Fe, Cu and Ni and the balance of Ti.
The specific preparation process of the titanium alloy material comprises the following steps:
(1) weighing various raw materials according to the metal proportion, and respectively placing the raw materials in an oven for preheating at the preheating temperature of 150-200 ℃ for 2-3 h;
(2) heating a melting furnace to 650-750 ℃, putting the preheated raw materials into the melting furnace for melting, introducing protective gas and a covering agent for protection in the melting process, stirring the alloy liquid by using a stirrer for 5-10 min after the raw materials are completely melted to uniformly mix the raw materials, and then removing slag on the surface of the alloy liquid;
(3) refining the alloy liquid by adopting Ar gas and a solvent, stirring and slagging off the melt, and then keeping the temperature at 700-720 ℃ and standing for 30-60 min for casting;
(4) turning the surface of the cast ingot blank, and processing the diameter and the length of the ingot blank to be matched with the inner diameter and the length of an extrusion cylinder of an extruder; putting the processed ingot blank into a heating furnace, heating to 300-400 ℃, and then preserving heat for 2-5 h;
(5) putting the heated ingot blank into a preheated extrusion cylinder for extrusion, wherein the extrusion speed is 1.0-5.0 m/min, the preheating temperature of the extrusion cylinder is 300-400 ℃, and the extrusion ratio is 10-50: 1, so as to obtain an extruded bar;
(6) the aging treatment is carried out on the extruded bar, and the process system is as follows: and (3) keeping the temperature at 150-200 ℃ for 15-30 h, and then air cooling to obtain the high-ductility titanium alloy material extrusion material.
In order to prolong the service life of the compensation device, a guide rod 2 is arranged in the corrugated pipe 1, the cross section of the guide rod 2 is of a T-shaped structure, the outer side of the large end of the guide rod 2 is welded with the edge of one end of the corrugated pipe 1, and a connecting flange 4 is fixedly arranged at one end of the corrugated pipe 1, which is far away from the welding position of the guide rod 2; one end of the corrugated pipe 1 is connected with a pipeline through a connecting flange 4, the other end of the corrugated pipe is welded and blocked through a guide rod 2, and fluid in the pipeline cannot pass through the corrugated pipe 1, so that the corrugated pipe 1 cannot be corroded by the fluid; the connector 21 that is used for being connected with fixing device is seted up on the main aspects surface of guide arm 2, and connector 21 and fixing device adopt welding or threaded connection's mode to be connected, and the one end that pipeline was kept away from to guide arm 2 is connected with fixing device, when vibration or skew take place, utilizes the flexible effectual buffering and the absorbed stress of bellows 1 still, reaches the effect of protection pipeline.
In order to improve the structural strength of the device, an outer lining ring 3 for improving the welding strength is fixedly arranged on the outer side of the large end of the guide rod 2, and an inner lining ring 5 for improving the supporting strength is fixedly arranged at the joint of the connecting flange 4 and the corrugated pipe 1.
For convenience of use, the connecting part 11 is made of an ultralow temperature resistant titanium magnesium alloy material, and the connecting part 11 and the expansion part 12 are fixedly connected in a welding mode.
Example 1
The titanium alloy material which is resistant to ultralow temperature and has high ductility under the ultralow temperature condition comprises the following components in percentage by mass: 6.0 percent of Zn, 4.0 percent of Gd, 0.2 percent of Al, less than 0.02 percent of impurity elements of Si, Fe, Cu and Ni and the balance of Ti.
The preparation process comprises the following steps:
(1) weighing various raw materials according to the metal proportion, and respectively placing the raw materials in an oven for preheating at the preheating temperature of 150-200 ℃ for 2 hours;
(2) heating a melting furnace to 650-750 ℃, putting the preheated raw materials into the melting furnace for melting, introducing protective gas and a covering agent for protection in the melting process, stirring the alloy liquid for 5min by using a stirrer after the raw materials are completely melted, uniformly mixing the molten alloy liquid, and removing slag on the surface of the alloy liquid;
(3) refining the alloy liquid by adopting Ar gas and a solvent, stirring and slagging off the melt, and then keeping the temperature and standing for 30min at 700-720 ℃ for casting;
(4) turning the surface of the cast ingot blank, and processing the diameter and the length of the ingot blank to be matched with the inner diameter and the length of an extrusion cylinder of an extruder; putting the processed ingot blank into a heating furnace, heating to 300-400 ℃, and then preserving heat for 2 h;
(5) putting the heated ingot blank into a preheated extrusion cylinder for extrusion, wherein the extrusion speed is 1.0-5.0 m/min, the preheating temperature of the extrusion cylinder is 300-400 ℃, and the extrusion ratio is 10-50: 1, so as to obtain an extruded bar;
(6) the aging treatment is carried out on the extruded bar, and the process system is as follows: and (3) keeping the temperature at 150-200 ℃ for 15h, and then cooling in air to obtain the high-ductility titanium alloy material extrusion material.
Example 2
The titanium alloy material which is resistant to ultralow temperature and has high ductility under the ultralow temperature condition comprises the following components in percentage by mass: 7.0 percent of Zn, 6.0 percent of Gd, 0.4 percent of Al, less than 0.02 percent of impurity elements of Si, Fe, Cu and Ni and the balance of Ti.
The preparation process comprises the following steps:
(6) weighing various raw materials according to the metal proportion, and respectively placing the raw materials in an oven for preheating at the preheating temperature of 150-200 ℃ for 2.5 hours;
(7) heating a melting furnace to 650-750 ℃, putting the preheated raw materials into the melting furnace for melting, introducing protective gas and a covering agent for protection in the melting process, stirring the alloy liquid by using a stirrer for 7.5min after the raw materials are completely melted to uniformly mix the raw materials, and then removing slag on the surface of the alloy liquid;
(8) refining the alloy liquid by adopting Ar gas and a solvent, stirring and slagging off the melt, and then keeping the temperature of 700-720 ℃ and standing for 45min for casting;
(9) turning the surface of the cast ingot blank, and processing the diameter and the length of the ingot blank to be matched with the inner diameter and the length of an extrusion cylinder of an extruder; putting the processed ingot blank into a heating furnace, heating to 300-400 ℃, and then preserving heat for 3.5 h;
(10) putting the heated ingot blank into a preheated extrusion cylinder for extrusion, wherein the extrusion speed is 1.0-5.0 m/min, the preheating temperature of the extrusion cylinder is 300-400 ℃, and the extrusion ratio is 10-50: 1, so as to obtain an extruded bar;
(6) the aging treatment is carried out on the extruded bar, and the process system is as follows: and (3) keeping the temperature at 150-200 ℃ for 22h, and then cooling in air to obtain the high-ductility titanium alloy material extrusion material.
Example 3
The titanium alloy material which is resistant to ultralow temperature and has high ductility under the ultralow temperature condition comprises the following components in percentage by mass: 8.0 percent of Zn, 8.0 percent of Gd, 0.6 percent of Al, less than 0.02 percent of impurity elements of Si, Fe, Cu and Ni and the balance of Ti.
The preparation process comprises the following steps:
(1) weighing various raw materials according to the metal proportion, and respectively placing the raw materials in an oven for preheating at the preheating temperature of 150-200 ℃ for 3 hours;
(2) heating a melting furnace to 650-750 ℃, putting the preheated raw materials into the melting furnace for melting, introducing protective gas and a covering agent for protection in the melting process, stirring the alloy liquid for 10min by using a stirrer after the raw materials are completely melted, uniformly mixing the molten alloy liquid, and removing slag on the surface of the alloy liquid;
(3) refining the alloy liquid by adopting Ar gas and a solvent, stirring and slagging off the melt, and then keeping the temperature and standing for 60min at 700-720 ℃ for casting;
(4) turning the surface of the cast ingot blank, and processing the diameter and the length of the ingot blank to be matched with the inner diameter and the length of an extrusion cylinder of an extruder; putting the processed ingot blank into a heating furnace, heating to 300-400 ℃, and then preserving heat for 5 hours;
(5) putting the heated ingot blank into a preheated extrusion cylinder for extrusion, wherein the extrusion speed is 1.0-5.0 m/min, the preheating temperature of the extrusion cylinder is 300-400 ℃, and the extrusion ratio is 10-50: 1, so as to obtain an extruded bar;
(6) the aging treatment is carried out on the extruded bar, and the process system is as follows: and (3) keeping the temperature at 150-200 ℃ for 30h, and then cooling in air to obtain the high-ductility titanium alloy material extrusion material.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides an ultra-low temperature ripple compensation arrangement, includes the bellows, its characterized in that: the corrugated pipe comprises a connecting part and a telescopic part which are arranged in a crossed manner, wherein the telescopic part is made of a titanium alloy material which is resistant to ultralow temperature and has high ductility under the ultralow temperature condition;
the titanium alloy material comprises the following components in percentage by mass: 6.0 to 8.0 percent of Zn, 4.0 to 8.0 percent of Gd, 0.2 to 0.6 percent of Al, less than 0.02 percent of the total amount of impurity elements of Si, Fe, Cu and Ni and the balance of Ti.
2. An ultra-low temperature ripple compensation device of claim 1, wherein: the specific preparation process of the titanium alloy material comprises the following steps:
(1) weighing various raw materials according to the metal proportion, and respectively placing the raw materials in an oven for preheating at the preheating temperature of 150-200 ℃ for 2-3 h;
(2) heating a melting furnace to 650-750 ℃, putting the preheated raw materials into the melting furnace for melting, introducing protective gas and a covering agent for protection in the melting process, stirring the alloy liquid by using a stirrer for 5-10 min after the raw materials are completely melted to uniformly mix the raw materials, and then removing slag on the surface of the alloy liquid;
(3) refining the alloy liquid by adopting Ar gas and a solvent, stirring and slagging off the melt, and then keeping the temperature at 700-720 ℃ and standing for 30-60 min for casting;
(4) turning the surface of the cast ingot blank, and processing the diameter and the length of the ingot blank to be matched with the inner diameter and the length of an extrusion cylinder of an extruder; putting the processed ingot blank into a heating furnace, heating to 300-400 ℃, and then preserving heat for 2-5 h;
(5) putting the heated ingot blank into a preheated extrusion cylinder for extrusion, wherein the extrusion speed is 1.0-5.0 m/min, the preheating temperature of the extrusion cylinder is 300-400 ℃, and the extrusion ratio is 10-50: 1, so as to obtain an extruded bar;
(6) the aging treatment is carried out on the extruded bar, and the process system is as follows: and (3) keeping the temperature at 150-200 ℃ for 15-30 h, and then air cooling to obtain the high-ductility titanium alloy material extrusion material.
3. An ultra-low temperature ripple compensation device of claim 1, wherein: the corrugated pipe is characterized in that a guide rod is arranged in the corrugated pipe, the cross section of the guide rod is of a T-shaped structure, the outer side of the large end of the guide rod is welded with the edge of one end of the corrugated pipe, and a connecting flange is fixedly arranged at one end, away from the welding position of the guide rod, of the corrugated pipe.
4. An ultra-low temperature ripple compensation device of claim 3, wherein: and a connecting port for connecting with a fixing device is formed in the surface of the large end of the guide rod, and the connecting port is connected with the fixing device in a welding or threaded connection mode.
5. An ultra-low temperature ripple compensation device of claim 1, wherein: an outer lining ring used for improving welding strength is fixedly arranged on the outer side of the large end of the guide rod, and an inner lining ring used for improving supporting strength is fixedly arranged at the joint of the connecting flange and the corrugated pipe.
6. An ultra-low temperature ripple compensation device of claim 1, wherein: the connecting part is made of an ultralow temperature-resistant titanium-magnesium alloy material, and the connecting part and the telescopic part are fixedly connected in a welding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010885606.3A CN112030038A (en) | 2020-08-28 | 2020-08-28 | Ultralow-temperature corrugated compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010885606.3A CN112030038A (en) | 2020-08-28 | 2020-08-28 | Ultralow-temperature corrugated compensation device |
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| Publication Number | Publication Date |
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| CN112030038A true CN112030038A (en) | 2020-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010885606.3A Withdrawn CN112030038A (en) | 2020-08-28 | 2020-08-28 | Ultralow-temperature corrugated compensation device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19722967C1 (en) * | 1997-05-31 | 1998-08-20 | Hans Rattay | Axial compensator for pipes carrying gas and liquids |
| CN201661810U (en) * | 2010-03-19 | 2010-12-01 | 江苏扬光机械制造有限公司 | Axial compensating and strengthening connection structure of ultra-low temperature compensator |
| CN202812629U (en) * | 2012-10-08 | 2013-03-20 | 江苏晨光波纹管有限公司 | Ultralow temperature corrugated pipe compensator |
| CN106756232A (en) * | 2016-12-12 | 2017-05-31 | 苏州陈恒织造有限公司 | A kind of low temperature resistant oil-immersed type transformer housing of cracking resistance |
| CN107747014A (en) * | 2017-10-26 | 2018-03-02 | 东北大学 | One kind has high ductibility high-strength magnesium alloy and preparation method thereof |
| CN110985801A (en) * | 2019-12-19 | 2020-04-10 | 安徽威迈光机电科技有限公司 | High-low temperature pipeline compensator assembly |
-
2020
- 2020-08-28 CN CN202010885606.3A patent/CN112030038A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19722967C1 (en) * | 1997-05-31 | 1998-08-20 | Hans Rattay | Axial compensator for pipes carrying gas and liquids |
| CN201661810U (en) * | 2010-03-19 | 2010-12-01 | 江苏扬光机械制造有限公司 | Axial compensating and strengthening connection structure of ultra-low temperature compensator |
| CN202812629U (en) * | 2012-10-08 | 2013-03-20 | 江苏晨光波纹管有限公司 | Ultralow temperature corrugated pipe compensator |
| CN106756232A (en) * | 2016-12-12 | 2017-05-31 | 苏州陈恒织造有限公司 | A kind of low temperature resistant oil-immersed type transformer housing of cracking resistance |
| CN107747014A (en) * | 2017-10-26 | 2018-03-02 | 东北大学 | One kind has high ductibility high-strength magnesium alloy and preparation method thereof |
| CN110985801A (en) * | 2019-12-19 | 2020-04-10 | 安徽威迈光机电科技有限公司 | High-low temperature pipeline compensator assembly |
Non-Patent Citations (2)
| Title |
|---|
| 李云凯 等: "《金属材料学 第3版》", 31 January 2019, 北京理工大学出版社 * |
| 马世昌: "《化学物质辞典》", 30 April 1999, 陕西科学技术出版社 * |
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Application publication date: 20201204 |