CN104747814A - Seamless pipe fitting for exhaust pipe - Google Patents
Seamless pipe fitting for exhaust pipe Download PDFInfo
- Publication number
- CN104747814A CN104747814A CN201410356664.1A CN201410356664A CN104747814A CN 104747814 A CN104747814 A CN 104747814A CN 201410356664 A CN201410356664 A CN 201410356664A CN 104747814 A CN104747814 A CN 104747814A
- Authority
- CN
- China
- Prior art keywords
- pipe body
- exhaust
- pipe
- chromium nitride
- nitride layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- F16L9/00—Rigid pipes
- F16L9/006—Rigid pipes specially profiled
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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
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/08—Coatings characterised by the materials used by metal
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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
- F16L59/00—Thermal insulation in general
- F16L59/14—Arrangements for the insulation of pipes or pipe systems
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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
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
Abstract
The invention relates to a seamless pipe fitting for an exhaust pipe. The seamless pipe fitting comprises a pipe body and an exhaust cavity. The pipe body is cylindrical and comprises a gas inlet end and an exhaust end, the inner diameter of the exhaust cavity becomes larger gradually from the gas inlet end to the exhaust end, the inner wall of the pipe body is coated with a chromium nitride layer in a plated mode, a high-temperature isolation layer is arranged on the outer wall of the pipe body, a polished layer is arranged between the pipe body and the chromium nitride layer, the pipe body is made of bidirectional stainless steel, the thickness of the wall of the pipe body ranges from 1 mm to 3.5 mm, and the thickness of the chromium nitride layer ranges from 0.1 mm to 0.6 mm. According to the seamless pipe fitting for the exhaust pipe, the inner wall of the pipe body is coated with the chromium nitride layer in the plated mode, high anti-corrosion performance is achieved, oil which is not combusted sufficiently can be discharged along with exhaust gas conveniently, the phenomenon of scalding caused by accidental touch of the pipe body is avoided through the high-temperature isolation layer on the outer portion of the pipe body, the pipe body made of the bidirectional stainless steel is better in abrasion resisting and pressure resisting performance, high mechanical strength and extensibility are achieved, and the service life is long.
Description
Technical field
The present invention relates to the technical field that auto parts and components manufacture, especially a kind of outlet pipe seamless pipe.
Background technique
Along with expanding economy, the recoverable amount of automobile gets more and more, and the easy befouling environment of vehicle exhaust, therefore all needs through outlet pipe from the tail gas that motor emits, complete purification process, and the effect of outlet pipe is very large thus, also very important.Existing automobile exhaust pipe is all by metallic material coiling and molding, and bulk strength is not high, and using effect is bad, corrosion resistance and thermal insulation bad, outlet pipe is shorter for working life.
Summary of the invention
The technical problem to be solved in the present invention is: for solving above-mentioned Problems existing, provides a kind of outlet pipe seamless pipe.
The technical solution adopted for the present invention to solve the technical problems is: a kind of outlet pipe seamless pipe, comprise body and exhaust cavity, body is cylindrical, comprise inlet end and exhaust end, the internal diameter of exhaust cavity increases gradually from inlet end to exhaust end, the inwall plating of body has chromium nitride layer, and the outer wall of body is provided with high temperature barrier layer.
Further, polishing layer is provided with between body and chromium nitride layer.
Further, body adopts two-way stainless steel to be material, and the wall thickness of body is 1mm ~ 3.5mm.
Further, the thickness of chromium nitride layer is 0.1mm ~ 0.6mm.
The invention has the beneficial effects as follows, outlet pipe seamless pipe of the present invention is by having chromium nitride layer at inboard wall of tube body plating, there is stronger decay resistance, and convenient insufficient oil that burns is with discharging, high temperature barrier layer outside body prevents from surprisingly encountering body and scalding, the wear-resisting resistance to pressure of the body adopting two-way stainless steel to make is better, has higher mechanical strength and extensibility, long service life.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is structural representation of the present invention.
1. bodys, 2. exhaust cavity, 3. inlet end, 4. exhaust end, 5. chromium nitride layer in figure, 6. high temperature barrier layer, 7. polishing layer.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
Outlet pipe seamless pipe as shown in Figure 1, comprise body 1 and exhaust cavity 2, body 1 is cylindrical, comprise inlet end 3 and exhaust end 4, the internal diameter of exhaust cavity 2 increases from inlet end 3 gradually to exhaust end 4, the inwall plating of body 1 has chromium nitride layer 5, effectively improve the decay resistance of seamless pipe, the outer wall of body 1 is provided with high temperature barrier layer 6, Security is high, be not easy to scald, polishing layer 7 is provided with between body 1 and chromium nitride layer 5, polishing layer 7 is conducive to the plating of chromium nitride layer 5, and increase soundness, body 1 adopts two-way stainless steel to be material, the wall thickness of body 1 is 1mm ~ 3.5mm, the anti-stress corrosion performance of body 1 is strong, wear-resisting, resistance to pressure is good, extend the working life of body 1, there is good comprehensive process ability.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on specification, must determine its technical scope according to right.
Claims (4)
1. an outlet pipe seamless pipe, comprise body (1) and exhaust cavity (2), it is characterized in that: described body (1) is for cylindrical, comprise inlet end (3) and exhaust end (4), the internal diameter of exhaust cavity (2) increases from inlet end (3) gradually to exhaust end (4), the inwall plating of body (1) has chromium nitride layer (5), and the outer wall of described body (1) is provided with high temperature barrier layer (6).
2. outlet pipe seamless pipe according to claim 1, is characterized in that: be provided with polishing layer (7) between described body (1) and chromium nitride layer (5).
3. outlet pipe seamless pipe according to claim 1, is characterized in that: described body (1) adopts two-way stainless steel to be material, and the wall thickness of body (1) is 1mm ~ 3.5mm.
4. outlet pipe seamless pipe according to claim 1, is characterized in that: the thickness of described chromium nitride layer (5) is 0.1mm ~ 0.6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410356664.1A CN104747814A (en) | 2014-07-24 | 2014-07-24 | Seamless pipe fitting for exhaust pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410356664.1A CN104747814A (en) | 2014-07-24 | 2014-07-24 | Seamless pipe fitting for exhaust pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104747814A true CN104747814A (en) | 2015-07-01 |
Family
ID=53587916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410356664.1A Pending CN104747814A (en) | 2014-07-24 | 2014-07-24 | Seamless pipe fitting for exhaust pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104747814A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102448720A (en) * | 2009-04-16 | 2012-05-09 | 雪佛龙美国公司 | Structural components for oil, gas, exploration, refining and petrochemical applications |
| CN102953010A (en) * | 2012-11-20 | 2013-03-06 | 无锡康柏斯机械科技有限公司 | Heat resistant steel material used for casting exhaust pipe of car |
| CN202884378U (en) * | 2012-09-06 | 2013-04-17 | 江苏赛特钢结构有限公司 | Steel composite anti-corrosion pipe |
| CN203927101U (en) * | 2014-05-29 | 2014-11-05 | 杨元清 | Outlet pipe seamless pipe |
-
2014
- 2014-07-24 CN CN201410356664.1A patent/CN104747814A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102448720A (en) * | 2009-04-16 | 2012-05-09 | 雪佛龙美国公司 | Structural components for oil, gas, exploration, refining and petrochemical applications |
| CN202884378U (en) * | 2012-09-06 | 2013-04-17 | 江苏赛特钢结构有限公司 | Steel composite anti-corrosion pipe |
| CN102953010A (en) * | 2012-11-20 | 2013-03-06 | 无锡康柏斯机械科技有限公司 | Heat resistant steel material used for casting exhaust pipe of car |
| CN203927101U (en) * | 2014-05-29 | 2014-11-05 | 杨元清 | Outlet pipe seamless pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150701 |