CN204975621U - Be used for instantaneous liquid phase diffsion welded the argon protection device of steel pipe intermediate frequency heating - Google Patents
Be used for instantaneous liquid phase diffsion welded the argon protection device of steel pipe intermediate frequency heating Download PDFInfo
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- CN204975621U CN204975621U CN201520777429.1U CN201520777429U CN204975621U CN 204975621 U CN204975621 U CN 204975621U CN 201520777429 U CN201520777429 U CN 201520777429U CN 204975621 U CN204975621 U CN 204975621U
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- steel pipe
- quartz ampoule
- quartzy
- liquid phase
- quartz capsule
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Abstract
The utility model discloses a be used for instantaneous liquid phase diffsion welded the argon protection device of steel pipe intermediate frequency heating. This the argon protection device is prepared from the high temperature resistant quartz capsule that reaches 1450 DEG C, is provided with two quartzy intake pipe of connecting the argon gas air supply with the symmetrical arrangement mode on the quartz capsule, and quartzy intake pipe center is located the third department of quartz capsule length. The quartz capsule has good thermal stability, electrical insulating property, light transmission, extremely low thermal expansion coefficient. The quartz capsule internal diameter is greater than welded tube 3 -5mm, during the instantaneous liquid phase diffsion of steel pipe intermediate frequency heating welding, with quartzy pipe box on the steel pipe, apart from intake pipe 60mm's one end and intermediate frequency heating inductor contact cooperation, steel pipe and quartzy intervascular space are sealed to the asbestos cloth for the other end. The argon gas pipe links to each other with the quartz capsule intake pipe, and the argon gas that lets in is full of the quartz capsule, flow direction inductor, and at the surperficial the argon protection air current that forms of the welding seam of heating, the utility model discloses can realize the no oxidation welding of steel pipe.
Description
Technical field
The utility model relates to a kind of argon protective device for steel pipe heating in medium frequency transient liquid phase diffusion welding.
Background technology
Transient liquid phase bonding (Transientliquid-phasebonding is called for short TLP) is being widely used over nearly more than 30 years as a kind of novel Diffusion bonding techniques.Its principle is positioned over by the intermediate layer alloy of a composition and fusion temperature lower (intermediate layer fusing point is lower than mother metal fusing point) between the workpiece that assembles; then certain pressure is applied; finally under the protection of vacuum or atmosphere of inert gases, be heated to connection temperature; under connection temperature conditions, be incubated the regular hour, namely complete welding process.Under open environment, use the TLP Diffusion Welding technology of argon shield not limit workpiece size, have a extensive future.Argon protective device is the device that under open environment, TLP Diffusion Welding is required.Requirement simple installation is flexible, high temperature resistant, is convenient to observe, and protective atmosphere is even.Quartz glass has extremely low thermal coefficient of expansion; heat-resisting quantity; fabulous chemical stability; excellent electrical insulating property; best saturating ultraviolet spectra performance and thoroughly visible ray and near infrared spectrum performance; and have the mechanical performance higher than simple glass, be particularly suitable for inert gas protection device when making steel pipe transient liquid phase bonding.The argon shield of original steel pipe transient liquid phase diffusion welding and intermediate frequency inductor are made into one, make inductor processing difficulties, and design is complicated, and cost is high.
Summary of the invention
The purpose of this utility model is just for the deficiency existing for existing transient liquid phase diffusion welding argon protective device; there is provided a kind of argon protective device for steel pipe heating in medium frequency transient liquid phase diffusion welding, for the transient liquid phase diffusion welding of steel pipe under open environment.
The purpose of this utility model is realized by following concrete technical measures:
The argon protective device that the utility model is used for steel pipe heating in medium frequency transient liquid phase diffusion welding is prepared from by the high temperature resistant quartz ampoule reaching 1450 DEG C; quartz ampoule is provided with two for connecting the quartzy air inlet pipe of argon gas source of the gas in the mode be arranged symmetrically with, and quartzy air inlet pipe center is positioned at 1/3rd places of quartz ampoule length.
Quartz ampoule length 90mm described in the utility model, quartz ampoule internal diameter is greater than soldered outer diameter tube 3-5mm; Described quartzy intake manifold length is 50mm, external diameter 8mm, the thick 2mm of an ancient piece of jade, round, flat and with a hole in its centre.Described quartzy air inlet pipe center position contacts the quartz ampoule end face 60mm coordinated with heating in medium frequency inductor, distance quartz ampoule other end 30mm.
More specifically, quartz ampoule described in the utility model adopts high temperature resistant quartz glass to be prepared from, wherein SiO
2content>=99.98%, Fe, Al, Ca, Mg, k, Na, Ti, Li, Ni, Cu, B, Cr total content≤45ppm.Have excellent thermal stability, electrical insulation capability, light transmission, extremely low thermal coefficient of expansion, transparent quartz tube adopts advanced continuous smelting method to produce.
Described quartz ampoule internal diameter prepares corresponding quartz ampoule according to needing the external diameter of welded pipe line, and described quartzy air inlet pipe is combined with quartz ampoule by welding manner.
Operation using method of the present utility model is as follows:
When carrying out steel pipe heating in medium frequency transient liquid phase diffusion welding, by quartz pipe sleeve on steel pipe, to contact with heating in medium frequency inductor apart from one end of quartzy air inlet pipe 60mm and coordinate, other end asbestos cloth seals the gap between steel pipe and quartz ampoule, argon gas gas source pipe will be connected with two 8mm quartz air inlet pipe afterwards, the argon gas passed into is full of quartz ampoule, and flows to inductor, form argon shield air-flow at the face of weld of heating, the no oxidized welding of steel pipe can be realized; Quartz ampoule is taken off after having welded, can Reusability.
The beneficial effects of the utility model are as follows:
(1) adopt high quartz protection of pipe device of air, can use for a long time at 1250 degrees Celsius, short time maximum operation (service) temperature is 1450 degrees Celsius, can meet the requirement of steel pipe TLP Diffusion Welding.
(2) adopt quartz ampoule protection device of air, visual good, uniform stream, joint surface quality is good, steady quality.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is argon protective device structure chart when carrying out steel pipe heating in medium frequency transient liquid phase diffusion welding.
Detailed description of the invention
The utility model is further described below with reference to embodiment (accompanying drawing):
As shown in Figure 1, 2, the argon protective device that the utility model is used for steel pipe heating in medium frequency transient liquid phase diffusion welding is prepared from by the high temperature resistant quartz ampoule 2 reaching 1450 DEG C, described quartz ampoule 2 length 90mm, quartz ampoule internal diameter is greater than soldered outer diameter tube 3-5mm; Quartz ampoule 2 is provided with two for connecting the quartzy air inlet pipe 1 of argon gas source of the gas in the mode be arranged symmetrically with, described quartzy air inlet pipe 1 length is 50mm, described quartzy air inlet pipe 1 center position contacts the quartz ampoule 2 end face 60mm coordinated with heating in medium frequency inductor, distance quartz ampoule 2 other end 30mm.
More specifically, quartz ampoule 2 described in the utility model adopts high temperature resistant quartz glass to be prepared from, wherein SiO
2content>=99.98%, Fe, Al, Ca, Mg, k, Na, Ti, Li, Ni, Cu, B, Cr total content≤45ppm.Have excellent thermal stability, electrical insulation capability, light transmission, extremely low thermal coefficient of expansion, transparent quartz tube adopts advanced continuous smelting method to produce.
Described quartz ampoule internal diameter prepares corresponding quartz ampoule according to needing the external diameter of welded pipe line, and described quartzy air inlet pipe 1 is combined with quartz ampoule 2 by welding manner.
Operation using method of the present utility model is as follows:
When carrying out steel pipe heating in medium frequency transient liquid phase diffusion welding, quartz ampoule 2 is enclosed within steel pipe 6, be that one end of 60mm to contact with heating in medium frequency inductor 4 and coordinates apart from quartzy air inlet pipe 1 position, other end asbestos cloth 3 seals the gap between steel pipe 6 and quartz ampoule 2, argon gas gas source pipe will be connected with two 8mm quartz air inlet pipe 1 afterwards, the argon gas passed into is full of quartz ampoule 2, and flow to inductor 4, form argon shield air-flow at the face of weld of the welding point 5 of heating, the no oxidized welding of steel pipe 6 can be realized; Quartz ampoule 2 is taken off after having welded, can Reusability.
Claims (2)
1. the argon protective device for steel pipe heating in medium frequency transient liquid phase diffusion welding; it is characterized in that: described argon protective device is prepared from by the high temperature resistant quartz ampoule reaching 1450 DEG C; quartz ampoule is provided with two for connecting the quartzy air inlet pipe of argon gas source of the gas in the mode be arranged symmetrically with, and quartzy air inlet pipe center is positioned at 1/3rd places of quartz ampoule length.
2. the argon protective device for steel pipe heating in medium frequency transient liquid phase diffusion welding according to claim 1, is characterized in that: described quartz ampoule length 90mm, and quartz ampoule internal diameter is greater than soldered outer diameter tube 3-5mm; Described quartzy intake manifold length is 50mm, external diameter 8mm, the thick 2mm of an ancient piece of jade, round, flat and with a hole in its centre, and described quartzy air inlet pipe center position contacts the quartz ampoule end face 60mm coordinated with heating in medium frequency inductor, distance quartz ampoule other end 30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520777429.1U CN204975621U (en) | 2015-10-09 | 2015-10-09 | Be used for instantaneous liquid phase diffsion welded the argon protection device of steel pipe intermediate frequency heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520777429.1U CN204975621U (en) | 2015-10-09 | 2015-10-09 | Be used for instantaneous liquid phase diffsion welded the argon protection device of steel pipe intermediate frequency heating |
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| Publication Number | Publication Date |
|---|---|
| CN204975621U true CN204975621U (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520777429.1U Expired - Fee Related CN204975621U (en) | 2015-10-09 | 2015-10-09 | Be used for instantaneous liquid phase diffsion welded the argon protection device of steel pipe intermediate frequency heating |
Country Status (1)
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| CN (1) | CN204975621U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114888395A (en) * | 2022-06-29 | 2022-08-12 | 中国航发动力股份有限公司 | Anti-oxidation device and using method thereof |
-
2015
- 2015-10-09 CN CN201520777429.1U patent/CN204975621U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114888395A (en) * | 2022-06-29 | 2022-08-12 | 中国航发动力股份有限公司 | Anti-oxidation device and using method thereof |
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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 |
Granted publication date: 20160120 Termination date: 20171009 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |