CN114941757A - High-temperature-resistant flat welding flange with neck and processing technology - Google Patents
High-temperature-resistant flat welding flange with neck and processing technology Download PDFInfo
- Publication number
- CN114941757A CN114941757A CN202210352406.0A CN202210352406A CN114941757A CN 114941757 A CN114941757 A CN 114941757A CN 202210352406 A CN202210352406 A CN 202210352406A CN 114941757 A CN114941757 A CN 114941757A
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- neck
- welding flange
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- groove
- casting
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- 238000003466 welding Methods 0.000 title claims abstract description 52
- 238000005516 engineering process Methods 0.000 title claims abstract description 9
- 238000005266 casting Methods 0.000 claims description 29
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 238000000227 grinding Methods 0.000 claims description 5
- 238000009966 trimming Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 238000004080 punching Methods 0.000 claims description 4
- 238000003723 Smelting Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000003801 milling Methods 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000003780 insertion Methods 0.000 abstract description 3
- 230000037431 insertion Effects 0.000 abstract description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- F16L23/00—Flanged joints
- F16L23/003—Auxiliary devices
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B1/00—Devices for securing together, or preventing relative movement between, constructional elements or machine parts
- F16B1/02—Means for securing elements of mechanisms after operation
-
- 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
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
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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
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/02—Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Standing Axle, Rod, Or Tube Structures Coupled By Welding, Adhesion, Or Deposition (AREA)
Abstract
The invention discloses a high-temperature-resistant flat welding flange with a neck and a processing technology thereof, and the high-temperature-resistant flat welding flange comprises a flat welding flange body with the neck, wherein a flange hole is formed in the surface of the flat welding flange body with the neck, a convex block with the neck is arranged on the surface of the flat welding flange body with the neck, a second groove is formed in the back surface of the flat welding flange body with the neck, a sleeve block is arranged on the outer side of the flat welding flange body with the neck, an insertion groove is formed in the sleeve block, a second screw hole is formed in the sleeve block, and a fixing screw is arranged on the surface of the sleeve block. This high temperature resistant flat welding flange processing technology of taking neck overlaps the outside of taking neck flat welding flange body with two sets of cover blocks, uses the set screw to insert and establishes in first screwed hole and second screwed hole, through bolt and flange hole with the junction stable connection, when meetting high temperature, the cover block has better high temperature resistance, makes the cover block parcel live and takes neck flat welding flange body, avoids taking neck flat welding flange body to warp under long-time high temperature's state.
Description
Technical Field
The invention relates to the technical field of flange processing, in particular to a high-temperature-resistant flat welding flange with a neck and a processing technology.
Background
Many manufacturers now produce large quantities of flanges, also called flange discs or flanges, which are parts of the shaft to shaft interconnection, for the connection between the pipe ends, by themselves, in order to facilitate the assembly and use of the product; there are also flanges on the inlet and outlet of the device for the connection between two devices;
the flange of the common part can not be operated at high temperature for a long time due to the material, and the flange can be slowly deformed at high temperature, so that the flange is damaged, and the flange can not be operated for a long time in a high-temperature environment.
Disclosure of Invention
The invention aims to provide a processing technology and a preparation device of a high-temperature-resistant flat welding flange with a neck, which aim to solve the problem that the flange is damaged and cannot operate for a long time in a high-temperature environment due to the fact that the flange is deformed slowly under high temperature in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a high temperature resistant neck flat-welding flange, includes the neck flat-welding flange body of taking, the flange hole has been seted up on the surface of the neck flat-welding flange body of taking, the neck lug has been installed on the surface of the neck flat-welding flange body of taking, the second recess has been seted up at the back of the neck flat-welding flange body of taking, the cover block has been installed in the outside of the neck flat-welding flange body of taking, the inside of cover block has been seted up and has been inserted the groove, the second screw hole has been seted up to the inside of cover block, the fixed screw has been installed on the surface of cover block, the side of cover block has been installed the second and has been inserted the piece, first recess has been seted up to the side of the neck flat-welding flange body of taking.
The invention relates to a high-temperature-resistant welding flange processing technology with a neck, which comprises a welding flange body with a neck, and the processing technological process of the high-temperature-resistant welding flange with the neck comprises the following steps: smelting the selected raw material steel in an intermediate frequency electric furnace to enable the temperature of molten steel to reach 1600 plus materials of 1700 ℃, preheating a metal mold to 800 plus materials of 900 ℃ and keeping the temperature constant, starting a centrifugal machine, injecting the molten steel into the preheated metal mold, naturally cooling a casting to 800 plus materials of 900 ℃ and keeping the temperature for 1-10 minutes, cooling the casting with water to be close to the normal temperature, demoulding and taking out the casting, uniformly forming eight groups of circular grooves with the diameter of 3-5cm on the surface of the casting by using a milling machine, forming a circular groove with the diameter of 10cm at the central position of the casting, opening a numerical control lathe, grinding and trimming by using the lathe, grinding the casting, turning a 9-12cm circular ring bump with the outer diameter of 13-15cm on the surface of the casting by using the lathe, forming a 2-3cm deep annular groove with the width of 3-5cm on the outer side of the casting by using the lathe, the method comprises the steps of forming an annular groove with the inner diameter of 12-13cm and the outer diameter of 14-16cm on the back of a casting to produce a flat-welded flange body with a neck, injecting molten steel into a preheated annular metal die, demoulding, polishing and trimming by using a lathe, cutting the annular casting from the middle, welding second inserting blocks on the inner sides of two groups of cut annular castings respectively, forming first screw holes on the surfaces of the second inserting blocks respectively by using a punching device, and forming an inserting groove and a second screw hole on the inner sides of sleeve blocks by using the punching device to produce the sleeve blocks.
Preferably, eight groups of flange holes are arranged, and the diameter of each flange hole is 3-5 cm.
Preferably, the neck protrusion has an inner diameter of 9-12cm and an outer diameter of 13-15cm, and the height of the neck is 3-5 cm.
Preferably, the sleeve block comprises a first inserting block, and the inner side of the sleeve block is fixedly connected with the first inserting block.
Preferably, the second inserting block comprises a first screw hole, and the surface of the second inserting block is provided with the first screw hole.
Preferably, the second inserting block and the inserting groove form a clamping structure.
Preferably, the first groove and the first inserting block form a clamping structure.
Preferably, the width of the first groove is 3-5cm, and the depth is 2-3 cm.
Preferably, the inner diameter of the second groove is 12-13cm, the outer diameter is 14-16cm, and the depth of the second groove is 3-5 cm.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, two groups of sleeve blocks are sleeved on the outer side of the flat welding flange body with the neck, fixing screws are inserted into the first screw hole and the second screw hole, and the joints are stably connected through the bolts and the flange holes.
Drawings
FIG. 1 is a perspective view of the structure of the present invention;
FIG. 2 is a schematic perspective view of a neck-in flat-welded flange body according to the present invention;
FIG. 3 is a schematic side view of the structure of the present invention;
FIG. 4 is a schematic backside view of the inventive structure;
FIG. 5 is a schematic front view of a nest block of the present invention;
FIG. 6 is an enlarged view of the construction of the nest block of the present invention;
fig. 7 is an enlarged view of the invention at a in fig. 6.
In the figure: 1. a neck flat welding flange body; 2. a flange hole; 3. a necked protrusion; 4. sleeving blocks; 401. a first insert block; 5. a first groove; 6. fixing screws; 7. a second insert block; 701. a first screw hole; 8. inserting into a groove; 9. a second screw hole; 10. a second 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. 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.
Referring to fig. 1 to 7, the embodiment provides a high temperature resistant flat welding flange with a neck, which includes a flat welding flange body 1 with a neck, a flange hole 2 is formed on the surface of the flat welding flange body 1 with the neck, a convex block 3 with the neck is formed on the surface of the flat welding flange body 1 with the neck, a second groove 10 is formed on the back of the flat welding flange body 1 with the neck, a sleeve block 4 is formed on the outer side of the flat welding flange body 1 with the neck, an insertion groove 8 is formed in the sleeve block 4, a second screw hole 9 is formed in the sleeve block 4, a fixing screw 6 is formed on the surface of the sleeve block 4, a second insertion block 7 is formed on the side of the sleeve block 4, and a first groove 5 is formed on the side of the flat welding flange body 1 with the neck.
Further, flange hole 2 is equipped with eight groups, and the diameter of flange hole 2 is 3cm, and the help that flange hole 2 of being convenient for can be better is connected. The neck-equipped projections 3 have an inner diameter of 10cm and an outer diameter of 14cm, and the neck-equipped projections 3 have a height of 4cm, so that the neck-equipped projections 3 can be connected better. The sleeve block 4 comprises a first inserting block 401, the inner side of the sleeve block 4 is fixedly connected with the first inserting block 401, and the first inserting block 401 can be clamped in the first groove 5 conveniently.
The second inserting block 7 comprises a first screw hole 701, and the surface of the second inserting block 7 is provided with the first screw hole 701, so that the fixing screw 6 can be conveniently inserted into the first screw hole 701; the second inserting block 7 and the inserting groove 8 form a clamping structure, so that the second inserting block 7 can be conveniently inserted into the inserting groove 8. The first groove 5 and the first inserting block 401 form a clamping structure, so that the sleeve block 4 can be clamped in the first groove 5 through the first inserting block 401. The width of the first groove 5 is 4cm, the depth of the first groove is 2cm, and the first inserting block 401 can be conveniently and perfectly clamped into the first groove; the inner diameter of the second groove 10 is 12cm, the outer diameter of the second groove 10 is 15cm, and the depth of the second groove 10 is 3-5cm, so that the second groove 10 can be conveniently clamped.
The flange body 1 with the neck flat welding is arranged on the surface of the connecting part, the convex block is clamped in the second groove 10, two groups of sleeve blocks 4 are sleeved on the outer side of the flange body 1 with the neck flat welding, the first inserting block 401 is clamped in the first groove 5, the second inserting block 7 is inserted in the inserting groove 8, fixing screws 6 are used for inserting in the first screw holes 701 and the second screw holes 9, the second inserting block 7 is fixed inside the inserting groove 8, and therefore the sleeve blocks 4 are fixed on the outer side of the flange body 1 with the neck flat welding and are stably connected with the connecting part through bolts and the flange holes 2, when high temperature is met, the sleeve blocks 4 have better high temperature resistance, the sleeve blocks 4 wrap the flange body 1 with the neck flat welding, and deformation of the flange body 1 with the neck flat welding under the state of long time high temperature is avoided.
In the embodiment, the selected raw material steel is put into an intermediate frequency electric furnace for smelting, the temperature of molten steel reaches 1650 ℃, a metal mold is preheated to 880 plus 890 ℃ and kept at a constant temperature, a centrifuge is started, the molten steel is injected into the preheated metal mold, the casting is naturally cooled to 800 plus 810 ℃ for 5 minutes, the temperature is cooled to be close to the normal temperature by water, the casting is taken out after demolding, eight groups of circular grooves with the diameter of 3cm are uniformly arranged on the surface of the casting by using a milling machine, a circular groove with the diameter of 10cm is arranged at the central position of the casting, a numerical control lathe is opened, the lathe is used for polishing and trimming and grinding, an annular convex block with the outer diameter of 10cm and the outer diameter of 14cm is lathed on the surface of the casting by using the lathe, an annular groove with the depth of 2cm and the width of 4cm is arranged on the outer side of the casting by using the lathe, an annular groove with the inner diameter of 12cm and the outer diameter of 15cm is arranged on the back of the casting by using the lathe, thereby produce out area neck flat welding flange body 1, encircle dress metal mould with the molten steel injection back of preheating, the drawing of patterns uses the lathe to polish the side cut, cut the ring dress foundry goods from the centre, insert a piece 7 with two sets of ring dress foundry goods inboard welding second that are cut off respectively, use perforating device, insert the surface of establishing a piece 7 at the second respectively and seted up first screw hole 701, use perforating device to offer in the inboard of cover piece 4 and insert groove 8 and second screw hole 9, thereby produce cover piece 4.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a high temperature resistant neck flush joint flange, includes neck flush joint flange body (1), its characterized in that: flange hole (2) have been seted up on the surface of area neck flat-welding flange body (1), take the surface of neck flat-welding flange body (1) to have installed and take neck lug (3), second recess (10) have been seted up at the back of taking neck flat-welding flange body (1), sleeve block (4) have been installed in the outside of taking neck flat-welding flange body (1), the inside of sleeve block (4) has been seted up and has been inserted and establish groove (8), second screw hole (9) have been seted up to the inside of sleeve block (4), fixed screw (6) have been installed on the surface of sleeve block (4), the second has been installed to the side of sleeve block (4) and has been inserted and establish piece (7), first recess (5) have been seted up to the side of taking neck flat-welding flange body (1).
2. A high temperature resistant necked flat welded flange according to claim 1, wherein: eight groups of flange holes (2) are arranged, and the diameter of each flange hole (2) is 3-5 cm.
3. A high temperature resistant necked flat welded flange according to claim 1, wherein: the inner diameter of the neck-provided bump (3) is 9-12cm, the outer diameter is 13-15cm, and the height of the neck-provided bump (3) is 3-5 cm.
4. The high-temperature-resistant flat welding flange with the neck as claimed in claim 1, characterized in that: the sleeve block (4) comprises a first inserting block (401), and the inner side of the sleeve block (4) is fixedly connected with the first inserting block (401).
5. A high temperature resistant necked flat welded flange according to claim 1, wherein: the second inserting block (7) comprises a first screw hole (701), and the surface of the second inserting block (7) is provided with the first screw hole (701).
6. A high temperature resistant necked flat welded flange according to claim 1, wherein: the second inserting block (7) and the inserting groove (8) form a clamping structure.
7. A high temperature resistant necked flat welded flange according to claim 5, wherein: the first groove (5) and the first inserting block (401) form a clamping structure.
8. The high temperature resistant flat welding flange with the neck of claim 7, characterized in that: the width of the first groove (5) is 3-5cm, and the depth is 2-3 cm.
9. A high temperature resistant necked flat welded flange according to claim 1, wherein: the inner diameter of the second groove (10) is 12-13cm, the outer diameter of the second groove is 14-16cm, and the depth of the second groove (10) is 3-5 cm.
10. The utility model provides a high temperature resistant area neck flush joint flange processing technology, includes area neck flush joint flange body (1), its characterized in that: the processing process flow of the high-temperature resistant flat welding flange with the neck is as follows: smelting the selected raw material steel in an intermediate frequency electric furnace to enable the temperature of molten steel to reach 1600 plus materials of 1700 ℃, preheating a metal mold to 800 plus materials of 900 ℃ and keeping the temperature constant, starting a centrifugal machine, injecting the molten steel into the preheated metal mold, naturally cooling a casting to 800 plus materials of 900 ℃ and keeping the temperature for 1-10 minutes, cooling the casting with water to be close to the normal temperature, demoulding and taking out the casting, uniformly forming eight groups of circular grooves with the diameter of 3-5cm on the surface of the casting by using a milling machine, forming a circular groove with the diameter of 10cm at the central position of the casting, opening a numerical control lathe, grinding and trimming by using the lathe, grinding the casting, turning a 9-12cm circular ring bump with the outer diameter of 13-15cm on the surface of the casting by using the lathe, forming a 2-3cm deep annular groove with the width of 3-5cm on the outer side of the casting by using the lathe, the manufacturing method comprises the steps of forming an annular groove with the inner diameter of 12-13cm and the outer diameter of 14-16cm on the back of a casting to produce a flat welding flange body (1) with a neck, injecting molten steel into a preheated annular metal die, demolding, polishing and trimming by using a lathe, cutting the annular casting from the middle, welding two groups of cut inner sides of the annular casting with second inserting blocks (7), respectively forming first screw holes (701) on the surfaces of the second inserting blocks (7) by using a punching device, and forming inserting grooves (8) and second screw holes (9) on the inner sides of sleeve blocks (4) by using the punching device to produce the sleeve blocks (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210352406.0A CN114941757A (en) | 2022-04-05 | 2022-04-05 | High-temperature-resistant flat welding flange with neck and processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210352406.0A CN114941757A (en) | 2022-04-05 | 2022-04-05 | High-temperature-resistant flat welding flange with neck and processing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114941757A true CN114941757A (en) | 2022-08-26 |
Family
ID=82908156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210352406.0A Pending CN114941757A (en) | 2022-04-05 | 2022-04-05 | High-temperature-resistant flat welding flange with neck and processing technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114941757A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007100752A (en) * | 2005-09-30 | 2007-04-19 | Cosmo Koki Co Ltd | Flange joint leakage prevention method and its device |
| US20140125057A1 (en) * | 2011-05-30 | 2014-05-08 | Ensival-Moret France | Flange for connecting a hydraulic or pneumatic pipe of an industrial machine |
| CN106829239A (en) * | 2017-02-07 | 2017-06-13 | 兴化市苏星金属制品有限公司 | A kind of slip-on-welding plate flange hand hole |
| CN206439538U (en) * | 2017-02-07 | 2017-08-25 | 兴化市苏星金属制品有限公司 | A kind of hubbed clip-on-welding flange |
| CN208135055U (en) * | 2018-04-09 | 2018-11-23 | 常州市武进第二法兰锻造有限公司 | A kind of practical downhand welding hubbed flange |
| CN208417873U (en) * | 2018-11-05 | 2019-01-22 | 泰州市超威机电设备制造有限公司 | A kind of New-type plate slip-on welding flange |
| CN109434394A (en) * | 2018-12-26 | 2019-03-08 | 湛江明迪汽车零部件制造有限公司 | A kind of high pressure resistant lubricating oil pipe processing method |
| CN210830890U (en) * | 2019-11-19 | 2020-06-23 | 浙江特塑龙化工设备有限公司 | Connecting piece for pipeline |
| CN212004676U (en) * | 2020-04-17 | 2020-11-24 | 上海凯斯特钢管集团有限公司 | Stainless steel band neck welding neck flange |
| CN214146949U (en) * | 2020-12-23 | 2021-09-07 | 常州维恒得机械制造有限公司 | Flange convenient to disassemble and used for automobile air conditioning system |
-
2022
- 2022-04-05 CN CN202210352406.0A patent/CN114941757A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007100752A (en) * | 2005-09-30 | 2007-04-19 | Cosmo Koki Co Ltd | Flange joint leakage prevention method and its device |
| US20140125057A1 (en) * | 2011-05-30 | 2014-05-08 | Ensival-Moret France | Flange for connecting a hydraulic or pneumatic pipe of an industrial machine |
| CN106829239A (en) * | 2017-02-07 | 2017-06-13 | 兴化市苏星金属制品有限公司 | A kind of slip-on-welding plate flange hand hole |
| CN206439538U (en) * | 2017-02-07 | 2017-08-25 | 兴化市苏星金属制品有限公司 | A kind of hubbed clip-on-welding flange |
| CN208135055U (en) * | 2018-04-09 | 2018-11-23 | 常州市武进第二法兰锻造有限公司 | A kind of practical downhand welding hubbed flange |
| CN208417873U (en) * | 2018-11-05 | 2019-01-22 | 泰州市超威机电设备制造有限公司 | A kind of New-type plate slip-on welding flange |
| CN109434394A (en) * | 2018-12-26 | 2019-03-08 | 湛江明迪汽车零部件制造有限公司 | A kind of high pressure resistant lubricating oil pipe processing method |
| CN210830890U (en) * | 2019-11-19 | 2020-06-23 | 浙江特塑龙化工设备有限公司 | Connecting piece for pipeline |
| CN212004676U (en) * | 2020-04-17 | 2020-11-24 | 上海凯斯特钢管集团有限公司 | Stainless steel band neck welding neck flange |
| CN214146949U (en) * | 2020-12-23 | 2021-09-07 | 常州维恒得机械制造有限公司 | Flange convenient to disassemble and used for automobile air conditioning system |
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