CN102363364A - Manufacture method for inner composite pipe - Google Patents
Manufacture method for inner composite pipe Download PDFInfo
- Publication number
- CN102363364A CN102363364A CN2011101553234A CN201110155323A CN102363364A CN 102363364 A CN102363364 A CN 102363364A CN 2011101553234 A CN2011101553234 A CN 2011101553234A CN 201110155323 A CN201110155323 A CN 201110155323A CN 102363364 A CN102363364 A CN 102363364A
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- CN
- China
- Prior art keywords
- pipe
- tube
- interior pipe
- manufacturing approach
- inwall
- 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.)
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Abstract
The invention relates to a manufacture method for an inner composite pipe, which comprises the following steps that: firstly, the pipe wall of an inner pipe is processed to deform through a mechanical tool, in addition, the outer diameter of the inner pipe is reduced, then, the inner pipe is placed into a base pipe, next, the hydraulic pressure or mechanical pressure is exerted to the inner wall of the inner pipe from a pipe cavity of the inner pipe, the inner pipe is unfolded into a cylindrical pipe shape, and the mechanical pressure is transmitted onto the inner wall of the inner pipe by a steel ball. The outer diameter of the inner pipe before the diameter reduction and the outer diameter of the inner pipe after being unfolded are identical to the inner diameter of the base pipe. The inner pipe is placed into the base pipe after the deformation and diameter reduction, and corrugations of the pipe wall of the inner pipe are leveled through the mechanical pressure and the hydraulic pressure inside the inner pipe, so the base pipe is tightly matched with the inner pipe, the inner pipe is tightly combined with the base pipe through the tension of the inner pipe after the leveling and deformation, and the falling and the gap occurrence are avoided. The method has the advantages that the operation is simple, and the technical effect is reliable.
Description
Technical field
The present invention relates to mechanical field, relate in particular to composite pipe, particularly a kind of manufacturing approach of interior multiple tube.
Background technology
Composite pipe is widely used in industrial circle.In the prior art, there is slight clearance easily between the parent tube of formation multiple tube and the interior pipe, influences pipeline quality.
Summary of the invention
The object of the present invention is to provide a kind of in the manufacturing approach of multiple tube, described this in the manufacturing approach of multiple tube to solve the technical problem that has slight clearance between the parent tube that constitutes multiple tube in the prior art and the interior pipe easily.
The manufacturing approach of this interior multiple tube of the present invention; Comprise a process that interior pipe is combined with parent tube, wherein, described with in interior pipe and the process that parent tube combines; At first utilize the external diameter of machine tool pipe and in dwindling with the tube wall machining deformation of pipe in described; Then interior pipe is put into described parent tube, afterwards in the tube chamber of interior pipe inwardly the inwall of pipe apply hydraulic pressure or mechanical pressure, interior pipe is launched into cylindrical tube.
Further; After interior pipe is put into parent tube; Earlier in the tube chamber of interior pipe inwardly the inwall of pipe apply hydraulic pressure; Then in the tube chamber of interior pipe inwardly the inwall of pipe apply mechanical pressure, perhaps earlier in the tube chamber of interior pipe inwardly the inwall of pipe apply mechanical pressure, then in the tube chamber of interior pipe inwardly the inwall of pipe apply hydraulic pressure.
Further, in the described step of utilizing machine tool external diameter of pipe and in dwindling, utilize machine tool with the inner pipe wall distortion and form fold with the inner pipe wall machining deformation.
Further, described interior pipe is a thin-wall circular tube.
Further again, behind the tube wall deformation of interior pipe, be wavy along circumferential.
Further, with steel ball be placed in the pipe tube chamber in, described steel ball is applied mechanical force, utilize steel ball to convert described mechanical force to mechanical pressure and act in the pipe inwall on.
Further, the external diameter of the interior pipe before the distortion undergauge equates or is slightly larger than the internal diameter of parent tube with the internal diameter of parent tube.
Operation principle of the present invention is: the external diameter of interior pipe before the distortion undergauge equates or is slightly larger than the internal diameter of parent tube with the internal diameter of parent tube, the external diameter of interior pipe after expansion equates with the internal diameter of parent tube.In behind the pipe distortion undergauge, put into parent tube, the hydraulic pressure in the interior pipe and mechanical pressure flatten the gauffer of inner pipe wall, and parent tube and interior pipe are closely cooperated, the tension force after interior pipe flattening is out of shape combines closely it with parent tube, can not come off and produce the gap.
The present invention and prior art are compared, and its effect is actively with tangible.The present invention puts into parent tube after interior pipe is out of shape undergauge; Internally apply hydraulic pressure and mechanical pressure in the pipe, flatten the gauffer of inner pipe wall, parent tube and interior pipe are closely cooperated; In the tension force that flattens after the distortion of pipe it is combined with parent tube closely, can not come off and produce the gap.The present invention is simple to operate, and technique effect is reliable.
Description of drawings
Fig. 1 be of the present invention in the radial structure sketch map of interior multiple tube among the embodiment of manufacturing approach of multiple tube.
The specific embodiment
As shown in Figure 1, the manufacturing approach of interior multiple tube of the present invention comprises a process that interior pipe 1 is combined with parent tube 2; Wherein, With in interior pipe 1 and the process that parent tube 2 combines, at first utilize the external diameter of machine tool pipe 1 and in dwindling described, then interior pipe 1 is put into described parent tube 2 the tube wall machining deformation of pipe 1 in described; Afterwards in the tube chamber of interior pipe 1 inwardly the inwall of pipe 1 apply hydraulic pressure or mechanical pressure, interior pipe 1 is launched into cylindrical tube.
Further; After interior pipe 1 is put into parent tube 2; Earlier in the tube chamber of interior pipe 1 inwardly the inwall of pipe 1 apply hydraulic pressure; Then in the tube chamber of interior pipe 1 inwardly the inwall of pipe 1 apply mechanical pressure, perhaps earlier in the tube chamber of interior pipe 1 inwardly the inwall of pipe 1 apply mechanical pressure, then in the tube chamber of interior pipe 1 inwardly the inwall of pipe 1 apply hydraulic pressure.
Further, in the described step of utilizing machine tool pipe 1 external diameter and in dwindling, utilize machine tool with interior pipe 1 tube wall deformation and form fold with interior pipe 1 tube wall machining deformation.
Further, described interior pipe 1 is a thin-wall circular tube.
Further again, behind the tube wall deformation of interior pipe 1, be wavy along circumferential.
Further, in pipe 1 tube chamber, described steel ball is applied mechanical force in steel ball is placed on, utilize steel ball to convert described mechanical force to mechanical pressure and act on pipe 1 the inwall.
The operation principle of present embodiment is: the external diameter of interior pipe 1 before the distortion undergauge all equates or is slightly larger than the internal diameter of parent tube 2 with the internal diameter of parent tube 2.In behind the pipe 1 distortion undergauge, put into parent tube 2, the gauffer of pipe 1 tube wall closely cooperated parent tube 2 and interior pipe 1 in the hydraulic pressure in the interior pipe 1 flattened with mechanical pressure, the tension force that interior pipe 1 flattens after being out of shape makes it combine closely with parent tube 2, can not come off and produces the gap.
Claims (8)
1. the manufacturing approach of multiple tube in a kind; Comprise a process that interior pipe is combined with parent tube; It is characterized in that: with in interior pipe and the process that parent tube combines, at first utilize the external diameter of machine tool pipe and in dwindling described, then interior pipe is put into described parent tube the tube wall machining deformation of pipe in described; Afterwards in the tube chamber of interior pipe inwardly the inwall of pipe apply hydraulic pressure or mechanical pressure, interior pipe is launched into cylindrical tube.
2. the manufacturing approach of multiple tube in as claimed in claim 1; It is characterized in that: after interior pipe is put into parent tube; Earlier in the tube chamber of interior pipe inwardly the inwall of pipe apply hydraulic pressure; Then in the tube chamber of interior pipe inwardly the inwall of pipe apply mechanical pressure, perhaps earlier in the tube chamber of interior pipe inwardly the inwall of pipe apply mechanical pressure, then in the tube chamber of interior pipe inwardly the inwall of pipe apply hydraulic pressure.
3. the manufacturing approach of multiple tube in as claimed in claim 1 is characterized in that: in the described step of utilizing machine tool external diameter of pipe with the inner pipe wall machining deformation and dwindling in, utilize machine tool with inner pipe wall distortion and formation fold.
4. the manufacturing approach of multiple tube in as claimed in claim 1 is characterized in that: pipe is a thin-wall circular tube in described.
5. the manufacturing approach of multiple tube in as claimed in claim 3 is characterized in that: behind the tube wall deformation of interior pipe, be wavy along circumferential.
6. the manufacturing approach of multiple tube in as claimed in claim 1 is characterized in that: in the pipe tube chamber, described steel ball is applied mechanical force in steel ball is placed on, utilize steel ball to convert described mechanical force to mechanical pressure and act on the inwall of pipe.
7. the manufacturing approach of multiple tube in as claimed in claim 1, it is characterized in that: the external diameter of the interior pipe after the expansion equates with the internal diameter of parent tube.
8. the manufacturing approach of multiple tube in as claimed in claim 1 is characterized in that: the external diameter of the interior pipe before the distortion undergauge equates or is slightly larger than the internal diameter of parent tube with the internal diameter of parent tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101553234A CN102363364A (en) | 2011-06-10 | 2011-06-10 | Manufacture method for inner composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101553234A CN102363364A (en) | 2011-06-10 | 2011-06-10 | Manufacture method for inner composite pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102363364A true CN102363364A (en) | 2012-02-29 |
Family
ID=45689971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101553234A Pending CN102363364A (en) | 2011-06-10 | 2011-06-10 | Manufacture method for inner composite pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102363364A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414239A (en) * | 2016-01-26 | 2016-03-23 | 太原科技大学 | Process for rolling inner-corrugated combined surface metal composite tube |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1186921A (en) * | 1996-12-30 | 1998-07-08 | 俞家正 | Metal composite pipe and making method and pipe joint structure |
-
2011
- 2011-06-10 CN CN2011101553234A patent/CN102363364A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1186921A (en) * | 1996-12-30 | 1998-07-08 | 俞家正 | Metal composite pipe and making method and pipe joint structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414239A (en) * | 2016-01-26 | 2016-03-23 | 太原科技大学 | Process for rolling inner-corrugated combined surface metal composite tube |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120229 |