CN204954196U - Compound steel pipes pipe end seals and welds with gas protection and interior strutting arrangement of cooling heat dissipation - Google Patents
Compound steel pipes pipe end seals and welds with gas protection and interior strutting arrangement of cooling heat dissipation Download PDFInfo
- Publication number
- CN204954196U CN204954196U CN201520713391.1U CN201520713391U CN204954196U CN 204954196 U CN204954196 U CN 204954196U CN 201520713391 U CN201520713391 U CN 201520713391U CN 204954196 U CN204954196 U CN 204954196U
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- China
- Prior art keywords
- pipe end
- heat dissipation
- cooling heat
- ring
- stainless steel
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- Expired - Fee Related
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Abstract
The utility model relates to a compound steel pipes pipe end seals and welds with gas protection and interior strutting arrangement of cooling heat dissipation. This compound steel pipes pipe end seals and welds with gas protection and interior strutting arrangement of cooling heat dissipation is a ring form, the outer stainless steel ring who has the venthole for processing of ring form, the ring form inlayer has as the recess of gas passage and the copper or the copper alloy ring of inlet port for processing, the inside and outside layer of ring form is connected through brazed mode. It is polluted by oxidation and copper in welding process to utilize the device can avoid the compound steel pipes pipe end to seal the stainless steel bushing pipe that welds the position, can cool off welding position fast and then avoid the phenomenon of burning because of the too big compound steel pipes of leading to pipe end great deformation of production of heat input volume and thin wall stainless steel bushing pipe, in addition, can also avoid because welding heat stress and lead to compound steel pipes shrink and weld crack of leading to along the pipe diameter direction in to finally reach the mesh that improves welding quality.
Description
Technical field
The utility model relates to gas shield and cooling heat dissipation inner supporting device field, particularly a kind of composite steel tube pipe end seal weldering gas shield and cooling heat dissipation inner supporting device.
Background technology
Conveying oil gas composite steel tube is generally prepared from by carbon steel base tube and stainless steel inner lining tube, is mechanical coupling fashion between base tube and internal lining pipe.Enter between base tube and internal lining pipe for avoiding water, impurity etc. and cause corrosion, be convenient to transport and site operation, owner requires that composite steel tube needs to carry out pipe end soldering and sealing and built-up welding before delivery usually simultaneously.Compare the built-up welding of composite steel tube pipe end, pipe end soldering and sealing is low for equipment requirements, the cycle is short, cost is low, therefore usually adopt pipe end sealing welding technique for extra to prepare at the land composite steel tube pipeline requiring quality relatively low.But, when pipe end soldering and sealing, due to internal lining pipe wall thickness thinner (1.5mm-3mm), easily produce in soldering and sealing process and burn and the phenomenon such as oxidation, in addition, welded stress also can cause composite steel tube to form the problems such as pipe end distortion and weld crack along caliber direction is shunk, and this seriously will reduce production efficiency undoubtedly and improve manufacturing cost.For above problem, a kind of gas shield and cooling heat dissipation inner supporting device need be developed for the soldering and sealing of composite steel tube pipe end to expand its application further.
Summary of the invention
The purpose of this utility model is to provide a kind of composite steel tube pipe end seal weldering gas shield and cooling heat dissipation inner supporting device, when mainly solving composite steel tube soldering and sealing, internal lining pipe be oxidized, burns, pipe end is out of shape and the problem such as weld crack, utilizes stainless steel bushing pipe oxidized and Cu-W ore deposit in welding process that this device can avoid composite steel tube pipe end seal welding position to put; What can cool welding position fast and then avoid causing because heat input is excessive composite steel tube pipe end to produce moderate finite deformation and thin-wall stainless steel bushing pipe burns phenomenon; In addition, the weld crack causing due to welded stress composite steel tube to cause along caliber direction is shunk can also be avoided, and finally reach the object improving welding quality.
The technical solution of the utility model is:
A kind of composite steel tube pipe end seal weldering gas shield and cooling heat dissipation inner supporting device; it is characterized in that; this composite steel tube pipe end seal weldering gas shield and cooling heat dissipation inner supporting device are an annular solid; described annular solid is outer for being processed with the stainless steel ring of venthole; described annular solid internal layer is be processed with as the groove of gas passage and the copper of air admission hole or copper alloy ring, and the inside and outside layer of described annular solid is connected by the mode of soldering.
Described composite steel tube pipe end seal weldering gas shield and cooling heat dissipation inner supporting device; it is characterized in that; it is the venthole of 1mm ~ 3mm that described outer stainless steel ring middle part processes a diameter every 10mm ~ 20mm distance; protective gas is blown to stainless steel bushing pipe through this venthole, to reach the object of the not oxidized and Cu-W ore deposit of protection stainless steel bushing pipe.
Described composite steel tube pipe end seal weldering gas shield and cooling heat dissipation inner supporting device, is characterized in that, described internal layer copper or copper alloy ring should be that 180 ° of symmetric positions process two air admission holes in its both sides.
Described composite steel tube pipe end seal weldering gas shield and cooling heat dissipation inner supporting device; it is characterized in that; described internal layer copper or copper alloy ring should be processed with the groove serving as protective gas channeling in position therebetween, and protective gas enters groove by air admission hole and discharged by the venthole of outer stainless steel ring after hoop flowing.
Described composite steel tube pipe end seal weldering gas shield and cooling heat dissipation inner supporting device, is characterized in that, leaves the gap of 20 μm ~ 80 μm during machined between described outer stainless steel ring and internal layer copper or copper alloy ring.
Described composite steel tube pipe end seal weldering gas shield and the preparation method of cooling heat dissipation inner supporting device; it is characterized in that; evenly nickel-based solder is applied in gap between described outer stainless steel ring and internal layer copper or copper alloy ring; and be warmed up to 900 DEG C ~ 1050 DEG C in a vacuum furnace, cool with stove after insulation 15min ~ 60min.
Accompanying drawing explanation
Fig. 1 is the weldering gas shield of the utility model composite steel tube pipe end seal and cooling heat dissipation inner supporting device generalized section.
In figure: 1 be venthole, 2 be stainless steel ring, 3 be groove, 4 be air admission hole, 5 for copper or copper alloy ring.
Detailed description of the invention
Embodiment
The utility model discloses a kind of composite steel tube pipe end seal weldering gas shield and cooling heat dissipation inner supporting device, below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
A kind of composite steel tube pipe end seal weldering gas shield and cooling heat dissipation inner supporting device, as shown in Figure 1.This device is an annular solid, described annular solid is outer for being processed with the stainless steel ring 2 of venthole 1, described annular solid internal layer is be processed with as the groove 3 of gas passage and the copper of air admission hole 4 or copper alloy ring 5, and the ectonexine of described annular solid is connected by the mode of soldering.
Outer stainless steel ring 2 middle part is the venthole 1 of 2mm every 15mm distance processing diameter, and protective gas is blown to stainless steel bushing pipe through this venthole 1, to reach the object of the not oxidized and Cu-W ore deposit of protection stainless steel bushing pipe.
Internal layer copper or copper alloy ring 5 should be processed with the groove 3 serving as protective gas channeling in position therebetween, and the venthole 1 of protective gas by the flowing of groove 3 hoop and through outer stainless steel ring is blown to stainless steel bushing pipe.
Internal layer copper or copper alloy ring 5 should be that 180 ° of symmetric positions process two air admission holes 4 in its both sides, and protective gas thus air admission hole 4 enters groove 3.
The gap of 30 μm should be left after assembling between outer stainless steel ring after machined and internal layer copper or copper alloy ring, and in this gap in evenly apply nickel-based solder, and be warmed up to 1000 DEG C in a vacuum furnace, the object having reached outer stainless steel ring 2 and be connected with internal layer copper or copper alloy ring is cooled after insulation 30min with stove.
The utility model has the advantage of: in the composite steel tube pipe end seal weldering gas shield that the utility model provides and cooling heat dissipation inner supporting device, protective gas enters groove through the air admission hole of internal layer copper or copper alloy ring, the venthole of outer stainless steel ring is flowed to again through groove, composite steel tube pipe end stainless steel bushing pipe is evenly distributed on to avoid stainless steel inner lining tube oxidized finally by venthole, and can when rapidly welding heat not being delivered to outer field stainless steel ring from composite steel tube welding position by heat exchange pattern when Cu-W ore deposit and then being delivered to copper or the copper alloy ring of internal layer, recycle its fast feature of absorbing heat and finally reach effect stainless steel inner lining tube being played to cooling fast, avoid causing because heat input is excessive composite steel tube pipe end to deform further and wall corrosion-resistant stainless steel layer burn problem.In addition, as inner support instrument, the weld crack because welded stress causes composite steel tube to produce along caliber direction is shunk can also be avoided.
Be only preferred embodiment of the present utility model in sum, be not used for limiting practical range of the present utility model.Namely all equivalences done according to the content of the utility model claim change and modify, and all should be technology category of the present utility model.
Claims (5)
1. a composite steel tube pipe end seal weldering gas shield and cooling heat dissipation inner supporting device; it is characterized in that; this composite steel tube pipe end seal weldering gas shield and cooling heat dissipation inner supporting device are an annular solid; described annular solid is outer for being processed with the stainless steel ring of venthole; described annular solid internal layer is be processed with as the groove of gas passage and the copper of air admission hole or copper alloy ring, and the inside and outside layer of described annular solid is connected by the mode of soldering.
2. composite steel tube pipe end seal weldering gas shield according to claim 1 and cooling heat dissipation inner supporting device, is characterized in that, it is the venthole of 1mm ~ 3mm that described outer stainless steel ring middle part processes a diameter every 10mm ~ 20mm distance.
3. composite steel tube pipe end seal weldering gas shield according to claim 1 and cooling heat dissipation inner supporting device, is characterized in that, described internal layer copper or copper alloy ring should be that 180 ° of symmetric positions process two air admission holes in its both sides.
4. composite steel tube pipe end seal weldering gas shield according to claim 1 and cooling heat dissipation inner supporting device, is characterized in that, described internal layer copper or copper alloy ring therebetween position are processed with the groove serving as protective gas channeling.
5. composite steel tube pipe end seal weldering gas shield according to claim 1 and cooling heat dissipation inner supporting device, is characterized in that, evenly applies nickel-based solder in the gap between described outer stainless steel ring and internal layer copper or copper alloy ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520713391.1U CN204954196U (en) | 2015-09-16 | 2015-09-16 | Compound steel pipes pipe end seals and welds with gas protection and interior strutting arrangement of cooling heat dissipation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520713391.1U CN204954196U (en) | 2015-09-16 | 2015-09-16 | Compound steel pipes pipe end seals and welds with gas protection and interior strutting arrangement of cooling heat dissipation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204954196U true CN204954196U (en) | 2016-01-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520713391.1U Expired - Fee Related CN204954196U (en) | 2015-09-16 | 2015-09-16 | Compound steel pipes pipe end seals and welds with gas protection and interior strutting arrangement of cooling heat dissipation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204954196U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108165922A (en) * | 2018-02-06 | 2018-06-15 | 无锡英特派金属制品有限公司 | Large thin-wall platinum-rhodium alloy pipe inner support circulating cooling spraying method and its inner support mechanism |
-
2015
- 2015-09-16 CN CN201520713391.1U patent/CN204954196U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108165922A (en) * | 2018-02-06 | 2018-06-15 | 无锡英特派金属制品有限公司 | Large thin-wall platinum-rhodium alloy pipe inner support circulating cooling spraying method and its inner support mechanism |
| CN108165922B (en) * | 2018-02-06 | 2023-08-18 | 英特派铂业股份有限公司 | Internal support circulation cooling spraying method and internal support mechanism for large thin-wall platinum rhodium alloy pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20190916 |