CN201133518Y - Dual metal composite pipe fitting with end processed with thread - Google Patents
Dual metal composite pipe fitting with end processed with thread Download PDFInfo
- Publication number
- CN201133518Y CN201133518Y CNU2007203114122U CN200720311412U CN201133518Y CN 201133518 Y CN201133518 Y CN 201133518Y CN U2007203114122 U CNU2007203114122 U CN U2007203114122U CN 200720311412 U CN200720311412 U CN 200720311412U CN 201133518 Y CN201133518 Y CN 201133518Y
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- Prior art keywords
- pipe fitting
- pipe
- corrosion
- base metal
- metal pipe
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Abstract
The utility model provides a bi-metallic composite pipe with thread on the end. The inner wall of a base metal pipe is provided with a corrosion-resistant metal layer. The ends of the base metal pipe and the corrosion-resistant metal layer are provided with linkage thread. The base metal pipe is a dual-way straight base metal pipe or a dual-way bend base metal pipe or a three-way base metal pipe. The corrosion-resistant metal layer is a stainless steel layer or a titanium alloy layer or a nickel-based alloy layer. The bi-metallic composite pipe with the structure has the characteristics that the strength is high, the corrosion-resistance performance is good, the linkage strength requirement of the bi-metallic composite pipe is achieved, the base metal pipe is not corrode by corrosive fluid, thus greatly prolonging the service life of the base metal pipe, reducing the delivery cost of the corrosive fluid and the manufacturing cost of the corrosive gas, and increasing the economic benefit. The bi-metallic composite pipe has the advantages of reasonable design, simple structure, low product cost, high strength, good corrosion-resistance performance, etc., and can be used for the linkage between the bi-metallic composite pipes for transporting the corrosive fluid and the corrosive gas.
Description
Technical field
The utility model belongs to the manufacturing technology field of special shape pipe, is specifically related to be used to transmit the pipe fitting of the double-layer metal material preparation that corrosion liquid or etchant gas pipeline connect.
Background technique
Pipe fitting is that pipeline and pipeline are coupled to each other and the mutual member of UNICOM, existing pipe fitting has cast iron pipe fittings, steel pipe fitting, brass pipe fitting, stainless steel pipe, corrosion resistant alloy pipe fitting, plastic pipe etc., the shape of pipe fitting has bilateral pipe fitting, tee pipe fitting, bending pipe fitting, cast iron pipe fittings, steel pipe fitting, brass pipe fitting are used in the UNICOM of water pipe or non-corrosive liquid or non-corrosive gas pipeline more, and stainless steel pipe, corrosion resistant alloy pipe fitting, plastic pipe are used in the UNICOM of corrosion liquid or etchant gas pipeline more.Water pipe or corrosion liquid pipeline or etchant gas pipeline serious corrosion problem occurs in long-term using process, for this reason, claimant of the present utility model has designed composite bimetal pipe, and having obtained national patent, the technical problem that exists in the using process of composite bimetal pipe is the usage requirement that existing pipe fitting is difficult to satisfy composite bimetal pipe.When composite bimetal pipe adopts the scyewed joint method to be connected with composite bimetal pipe by pipe fitting, the general employing corrosion resistant metal pipe fitting identical with the liner material, but at present domestic also do not have to supply the matching used composite bimetal pipe spare product of composite bimetal pipe, if adopt pure corrosion resistant alloy pipe fitting, price is higher, improve the cost of product, and be difficult on the market purchase the corrosion resistant alloy pipe fitting, had the pipe fitting of some materials also to exist the technical problem that intensity is difficult to guarantee.
The patent No. is 0328407.7, denomination of invention is the Chinese patent of " taper pipe thread self-adapting seal device ", the pipe fitting of this patent adopts the taper pipe thread self-adapting seal, can prevent the generation of pipe fitting corrosion phenomenon, but owing to be mechanical bond between its anti-corrosion layer and the pipe fitting body material, need to install additional seal ring in addition, therefore installation difficulty strengthens, simultaneously because of installing, very easily cause in the transportation process seal ring phenomenon of becoming flexible, drop, corrosion liquid appears, etchant gas enters between anti-corrosion layer and the pipe fitting matrix, makes pipe fitting matrix heavy corrosion.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the shortcoming of above-mentioned pipeline connection pipe fitting, provide a kind of reasonable in design, simple in structure, product cost is low, intensity is high, the end of corrosion resistance and good processes threaded composite bimetal pipe spare.
Solving the problems of the technologies described above the technological scheme that is adopted is: the inwall at the parent metal pipe fitting is provided with the corrosion resistant metal layer, is processed with the connection screw thread in the end of parent metal pipe fitting and corrosion resistant metal layer.
Corrosion resistant metal layer of the present utility model is stainless steel lining or titanium alloy layer or nickel base alloy layer.
The thickness of corrosion resistant metal layer of the present utility model is 0.6～2mm.
The utility model adopts the inwall at the straight parent metal pipe fitting of bilateral or crooked parent metal pipe fitting of bilateral or threeway parent metal pipe fitting that the corrosion resistant metal layer is set, the corrosion resistant metal layer is stainless steel lining or titanium alloy layer or nickel base alloy layer, the composite bimetal pipe spare of this structure, the intensity height, corrosion resistance and good, reached the requirement of composite bimetal pipe linking intensity, make the parent metal pipe fitting fluid that is not corroded corrode, improved the working life of parent metal pipe fitting greatly, reduce the cost of production of carrying corrosion liquid and etchant gas, improved economic benefit.The utlity model has reasonable in design, simple in structure, advantages such as product cost is low, intensity is high, corrosion resistance and good, can be used for carrying the connection of the composite bimetal pipe of corrosion liquid and etchant gas.
Description of drawings
Fig. 1 is the utility model embodiment 1 a structural representation.
Fig. 2 is the utility model embodiment 4 a structural representation.
Fig. 3 is the utility model embodiment 5 a structural representation.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described, but the utility model is not limited to these embodiments.
In Fig. 1, the composite bimetal pipe spare of present embodiment is made of parent metal pipe fitting 1,2 connection of corrosion resistant metal layer.
The parent metal pipe fitting 1 of present embodiment is a bilateral straight tube spare, in parent metal pipe fitting 1, be welded with one deck stainless steel metal layer and constitute corrosion resistant metal layer 2, corrosion resistant metal layer 2 also can adopt the centrifugal casting technology preparation, the thickness of corrosion resistant metal layer 2 is 1.2mm, and the length of corrosion resistant metal layer 2 is slightly less than the length of parent metal pipe fitting 1.End at parent metal pipe fitting 1 and corrosion resistant metal layer 2 is processed with the connection screw thread, is used for and the connecting of composite bimetal pipe, and the connection screw thread of present embodiment is the selfsealings pipe thread.The composite bimetal pipe spare of this structure, the intensity height, corrosion resistance and good, reached the requirement of composite bimetal pipe linking intensity, at the position that corrupt liquid contacts with parent metal pipe fitting 1 one deck corrosion resistant metal layer 2 is set, make parent metal pipe fitting 1 fluid that is not corroded corrode, improved the working life of parent metal pipe fitting 1 greatly, reduced the cost of production of carrying corrosion liquid and etchant gas, improve economic benefit, can be used for carrying the connection of the composite bimetal pipe of corrosion liquid and etchant gas.
In the present embodiment, the thickness of corrosion resistant metal layer 2 is 0.6mm.Corrosion resistant metal layer 2 is identical with embodiment 1 with the connecting relation of parent metal pipe fitting 1, and the end of parent metal pipe fitting 1 and corrosion resistant metal layer 2 is processed with the connection screw thread, and the used material of preparation corrosion resistant metal layer 2 is identical with embodiment 1.
Embodiment 3
In the present embodiment, the thickness of corrosion resistant metal layer 2 is 2mm.Corrosion resistant metal layer 2 is identical with embodiment 1 with the connecting relation of parent metal pipe fitting 1, and the end of parent metal pipe fitting 1 and corrosion resistant metal layer 2 is processed with the connection screw thread, and the used material of preparation corrosion resistant metal layer 2 is identical with embodiment 1.
Embodiment 4
Among the above embodiment 1～3, the parent metal pipe fitting 1 of present embodiment is the bilateral bending pipe fitting, referring to Fig. 2, in parent metal pipe fitting 1, be welded with one deck stainless steel metal layer and constitute corrosion resistant metal layer 2, the length of corrosion resistant metal layer 2 is slightly less than the length of parent metal pipe fitting 1.End at parent metal pipe fitting 1 and corrosion resistant metal layer 2 is processed with the connection screw thread, is used for connecting with composite bimetal pipe.The used material of corrosion resistant metal layer 2 is identical with respective embodiments with thickness.
Embodiment 5
Among the above embodiment 1～3, the parent metal pipe fitting 1 of present embodiment is a tee pipe fitting, referring to Fig. 3, in parent metal pipe fitting 1, be welded with one deck stainless steel metal layer and constitute corrosion resistant metal layer 2, the length of corrosion resistant metal layer 2 is slightly less than the length of parent metal pipe fitting 1.End at parent metal pipe fitting 1 and corrosion resistant metal layer 2 is processed with the connection screw thread, is used for connecting with composite bimetal pipe.The used material of corrosion resistant metal layer 2 is identical with respective embodiments with thickness.
Embodiment 6
Among the above embodiment 1～5, in parent metal pipe fitting 1, be welded with one deck titanium alloy layer and constitute corrosion resistant metal layer 2.The geometrical shape of component is identical with respective embodiments.
Embodiment 7
Among the above embodiment 1～5, in parent metal pipe fitting 1, be welded with one deck nickel base alloy layer and constitute corrosion resistant metal layer 2.The geometrical shape of component is identical with respective embodiments.
Claims (3)
1, a kind of end processes threaded composite bimetal pipe spare, it is characterized in that: the inwall at parent metal pipe fitting (1) is provided with corrosion resistant metal layer (2), is processed with the connection screw thread in the end of parent metal pipe fitting (1) and corrosion resistant metal layer (2).
2, process threaded composite bimetal pipe spare according to the described end of claim 1, it is characterized in that: said corrosion resistant metal layer (2) is stainless steel lining or titanium alloy layer or nickel base alloy layer.
3, process threaded composite bimetal pipe spare according to claim 1 or 2 described ends, it is characterized in that: the thickness of said corrosion resistant metal layer (2) is 0.6～2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203114122U CN201133518Y (en) | 2007-12-26 | 2007-12-26 | Dual metal composite pipe fitting with end processed with thread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203114122U CN201133518Y (en) | 2007-12-26 | 2007-12-26 | Dual metal composite pipe fitting with end processed with thread |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201133518Y true CN201133518Y (en) | 2008-10-15 |
Family
ID=40061790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203114122U Expired - Lifetime CN201133518Y (en) | 2007-12-26 | 2007-12-26 | Dual metal composite pipe fitting with end processed with thread |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201133518Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791170A (en) * | 2012-10-31 | 2014-05-14 | 丰田自动车株式会社 | Pipe with rib and method for manufacturing pipe with rib |
| WO2024178531A1 (en) * | 2023-02-27 | 2024-09-06 | 含山瑞可金属有限公司 | Combined connection pipe fitting |
-
2007
- 2007-12-26 CN CNU2007203114122U patent/CN201133518Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791170A (en) * | 2012-10-31 | 2014-05-14 | 丰田自动车株式会社 | Pipe with rib and method for manufacturing pipe with rib |
| CN103791170B (en) * | 2012-10-31 | 2016-11-23 | 丰田自动车株式会社 | Pipe with ribbing and its manufacture method |
| WO2024178531A1 (en) * | 2023-02-27 | 2024-09-06 | 含山瑞可金属有限公司 | Combined connection pipe fitting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081015 |
|
| CX01 | Expiry of patent term |