CN102211113A - Process for producing variable diameter pipe - Google Patents
Process for producing variable diameter pipe Download PDFInfo
- Publication number
- CN102211113A CN102211113A CN2011101142171A CN201110114217A CN102211113A CN 102211113 A CN102211113 A CN 102211113A CN 2011101142171 A CN2011101142171 A CN 2011101142171A CN 201110114217 A CN201110114217 A CN 201110114217A CN 102211113 A CN102211113 A CN 102211113A
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- China
- Prior art keywords
- pipe
- tubing
- mouth
- production technology
- reducing production
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- 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.)
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a process for producing a variable diameter pipe, which comprises the following steps of: processing a pipe orifice of a pipe into a small pipe orifice by using a die; immersing the whole pipe in a chemical substance for chemical treatment; and drawing the small pipe orifice to achieve the required pipe diameter and length by using a drawing die. By the process for producing the variable diameter pipe, the same pipe with various diameters is realized, other connecting processes are not needed, the manufacturing process is simple, a drawing processing technology is adopted, and the cost is low; in addition, the finished product of the integrated pipe has a pipe structure, the overall strength of the pipe is high, and a connecting position breakage phenomenon is avoided.
Description
Technical field
The present invention relates to a kind of tubing manufacture craft, a kind of especially tubing reducing production technology of producing the integrated tubing of different-diameter.
Background technology
The diameter of existing tubing is unified, at the support of some plant equipment since structure need, must there be the pipeline section of different-diameter in same body, and the manufacture craft more complicated of making this tubing, general people adopt the body of common diameter the body of different-diameter to be welded into the support tubing of needs, welding procedure needs plug into a tolerance and the relatively strictness of flatness of two bodys, so the body processing technology requires than higher, natural cost of manufacture will raise; In addition, big or small body is made into the structure of integrated body by the mode of welding, and it is not enough that weld gets stress intensity, is easy to occur phenomenon of rupture.
Summary of the invention
In order to overcome the deficiency of existing capability technology, the tubing reducing production technology that the invention provides a kind of body of same body multiple diameter and deposit.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of tubing reducing production technology, it is characterized in that: at first adopt mould that the tubing mouth of pipe is processed into the little mouth of pipe, then whole tubing is immersed in and carries out chemical treatment in the chemical substance, last stretched mould is elongated to caliber and the length that needs to the little mouth of pipe, realizes the body of same body multiple diameter and deposits.
Further design of the present invention: described chemical substance is hydrochloric acid, degreaser, bonderite mixture; The described little mouth of pipe is the mouth of pipe of taper; The soak time of whole tubing is half an hour.
The invention has the beneficial effects as follows: because tubing reducing production technology of the present invention, realize the body of same body multiple diameter and deposit, need not through other technologies of plugging into, manufacture craft is simple, adopts stretch processing technology, and cost is low, in addition, the integrated body of finished product is a pipe structure, and there is not a phenomenon of rupture of plugging in body bulk strength height.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of invention tubing;
Fig. 2 is an invention tubule mouth structure schematic diagram.
The specific embodiment
A kind of tubing reducing production technology, the tubing reducing production technology of present embodiment, at first adopt mould that the tubing mouth of pipe is processed into tubule mouth 1, then whole tubing is immersed in and carries out chemical treatment in the chemical substance, last stretched mould is elongated to caliber and the length that needs to tubule mouth 1, realizes the body of same body multiple diameter and deposits.Described chemical substance is hydrochloric acid, degreaser, bonderite mixture; The described little mouth of pipe is the mouth of pipe of taper; The soak time of whole tubing is half an hour.
Embodiment 1: tube outer diameter is 28mm, length overall 18mm at first adopts mould that the tubing mouth of pipe is processed into tubule mouth 1, then whole tubing is immersed in hydrochloric acid, degreaser, the bonderite mixture and carries out chemical treatment, soak time is approximately half an hour, it is that 25mm and length are 20mm that last stretched mould is elongated to external diameter to tubule mouth 1, realize the body of the multiple external diameter of same body and deposit, original external diameter is 28mm in the time of one section, length is 13mm, one section external diameter after outer is 25mm, and length is 20mm.
Embodiment 2: tube outer diameter is 28mm, length overall 10mm at first adopts mould that the tubing mouth of pipe is processed into tubule mouth 1, then whole tubing is immersed in hydrochloric acid, degreaser, the bonderite mixture and carries out chemical treatment, soak time is approximately half an hour, it is that 25mm and length are 10mm that last stretched mould is elongated to external diameter to tubule mouth 1, realize the body of the multiple external diameter of same body and deposit, original external diameter is 28mm in the time of one section, length is 7mm, one section external diameter after outer is 25mm, and length is 10mm.
Because tubing reducing production technology of the present invention, realize the body of same body multiple diameter and deposit, need not through other technologies of plugging into, manufacture craft is simple, adopts stretch processing technology, and cost is low, in addition, the integrated body of finished product is a pipe structure, and there is not a phenomenon of rupture of plugging in body bulk strength height.
In conjunction with the accompanying drawings specific embodiments of the invention have been carried out exemplary description above, obviously the invention is not restricted to this, the details of other not specified (NS) is also in protection scope of the present invention.
Claims (4)
1. tubing reducing production technology, it is characterized in that: at first adopt mould that the tubing mouth of pipe is processed into the little mouth of pipe (1), then whole tubing is immersed in and carries out chemical treatment in the chemical substance, last stretched mould is elongated to caliber and the length that needs to the little mouth of pipe (1), realizes the body of same body multiple diameter and deposits.
2. a kind of tubing reducing production technology according to claim 1, its feature is hydrochloric acid, degreaser, bonderite mixture in described chemical substance.
3. a kind of tubing reducing production technology according to claim 1, its feature is the mouth of pipe of taper at the described little mouth of pipe (1).
4. a kind of tubing reducing production technology according to claim 1, its feature is half an hour in the soak time of described whole tubing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101142171A CN102211113A (en) | 2011-05-04 | 2011-05-04 | Process for producing variable diameter pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101142171A CN102211113A (en) | 2011-05-04 | 2011-05-04 | Process for producing variable diameter pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102211113A true CN102211113A (en) | 2011-10-12 |
Family
ID=44742780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101142171A Pending CN102211113A (en) | 2011-05-04 | 2011-05-04 | Process for producing variable diameter pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102211113A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE943044C (en) * | 1953-06-10 | 1956-05-09 | Siemens Ag | Device for drawing pipes made of drawable and rollable non-ferrous metals, preferably aluminum, over a flying mandrel arranged inside the pipe |
| CN2342208Y (en) * | 1998-07-13 | 1999-10-06 | 于道生 | Slender thin wall metal variable diameter pipe for refrigerating circulation system |
| CN1528542A (en) * | 2003-10-20 | 2004-09-15 | 广州冠华金属精工制造有限公司 | Method and apparatus for manufacturing reducing pipe |
| CN101671825A (en) * | 2009-10-13 | 2010-03-17 | 广东联塑科技实业有限公司 | Pre-treating technique for composite metal plastic pipe |
-
2011
- 2011-05-04 CN CN2011101142171A patent/CN102211113A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE943044C (en) * | 1953-06-10 | 1956-05-09 | Siemens Ag | Device for drawing pipes made of drawable and rollable non-ferrous metals, preferably aluminum, over a flying mandrel arranged inside the pipe |
| CN2342208Y (en) * | 1998-07-13 | 1999-10-06 | 于道生 | Slender thin wall metal variable diameter pipe for refrigerating circulation system |
| CN1528542A (en) * | 2003-10-20 | 2004-09-15 | 广州冠华金属精工制造有限公司 | Method and apparatus for manufacturing reducing pipe |
| CN101671825A (en) * | 2009-10-13 | 2010-03-17 | 广东联塑科技实业有限公司 | Pre-treating technique for composite metal plastic 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 | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20111012 |