CN101776184A - Double-layer metal pipe and manufacture mold and manufacturing method thereof - Google Patents
Double-layer metal pipe and manufacture mold and manufacturing method thereof Download PDFInfo
- Publication number
- CN101776184A CN101776184A CN200910189016A CN200910189016A CN101776184A CN 101776184 A CN101776184 A CN 101776184A CN 200910189016 A CN200910189016 A CN 200910189016A CN 200910189016 A CN200910189016 A CN 200910189016A CN 101776184 A CN101776184 A CN 101776184A
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- pipe
- inner tube
- bimetal
- external pipe
- mfg
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/154—Making multi-wall tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/151—Making tubes with multiple passages
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention relates to a double-layer metal pipe and a manufacture mold and a manufacturing method thereof. The double-layer metal pipe comprises an inner pipe and an outer pipe which are closely matched with each other, and a channel which penetrates through the two ends of the double-layer metal pipe is arranged between the inner pipe and the outer pipe. The manufacturing mold is used for processing the channel between the inner pipe and the outer pipe of the double-layer metal pipe and comprises a hole with the diameter matched with the outside diameter of the inner pipe and a bulge arranged along the periphery of the hole or comprises an outer circumference with the diameter matched with the inside diameter of the outer pipe and a bulge arranged along the outer circumference. The manufacturing method comprises the following steps: using the manufacturing mold of the double-layer metal pipe to pull-cut grooves of the inner pipe and/or the outer pipe, inserting the inner pipe into the outer pipe and adopting the pipe expanding process to make the outer wall of the inner pipe closely cling to the inner wall of the outer pipe. The invention provides a double-layer metal pipe structure with a channel, realizes the production of the structure, and satisfies the use requirements of the double-layer metal pipe. Moreover, the invention has the advantages of simple structure and easy implementation.
Description
Technical field
The present invention relates to a kind of pipe structure, also relate to the mfg. moulding die and the manufacture method of this pipe structure, be specifically related to a kind of bimetal pipe and mfg. moulding die thereof and manufacture method.
Background technique
Bimetal pipe extensively applies to fields such as radiator, electric heating apparatus and condenser, and bimetal pipe requires outer layer metal tube closely to contact with the inner layer metal pipe, so that realize good transmission of heat.
Existing bimetallic tube such as double coiled welded tube; be by after steel band is become the internal layer 2 and outer 1 bilayer fit tightly by winding molding; send into the continuous furnace that has shielding gas and carry out soldering, thereby make double-layer pipe soldering firmly become weldless tube, its structure as shown in Figure 1.
For some special use occasions, require to have passage between inner tube and the external pipe, pass through for circulation.In the existing bimetal pipe, the double-level-metal tubular construction of passage does not appear having between the internal and external layer as yet.
Summary of the invention
One of the technical problem to be solved in the present invention is, a kind of bimetal pipe is provided, and has passage between its internal and external layer, satisfies the needs of special use occasion.
Two of the technical problem to be solved in the present invention is, a kind of bimetal pipe mfg. moulding die is provided, and is used for the manufacturing of above-mentioned bimetal pipe.
Three of the technical problem to be solved in the present invention is, a kind of double-level-metal pipe manufacturing method is provided, and realizes the manufacturing of above-mentioned bimetal pipe.
The present invention solves the technological scheme that one of its technical problem adopts: construct a kind of bimetal pipe, comprise the inner tube and the external pipe of snug fit, it is characterized in that, comprise the passage that runs through described bimetal pipe two ends between described inner tube and the external pipe.
In bimetal pipe of the present invention, described passage is to be arranged on described inner tube outer wall or described external pipe inwall or to be arranged on described inner tube outer wall simultaneously and described external pipe inwall runs through the groove at described bimetal pipe two ends.
In bimetal pipe of the present invention, described groove cross section is shaped as semicircle, semiellipse or dihedral.
In bimetal pipe of the present invention, described channel direction edge is parallel to the direction of described inner tube axis or is parallel to the direction setting of described external pipe axis, or described channel direction is provided with along corresponding described inner tube outer surface helix or along corresponding described external pipe internal surface helix.
Two technological schemes that adopted that the present invention solves its technical problem are: construct a kind of bimetal pipe mfg. moulding die, it is characterized in that, described bimetal pipe comprises the inner tube and the external pipe of snug fit, and described inner tube and external pipe directly comprise the passage that runs through described bimetal pipe two ends; Described mfg. moulding die comprises the hole of matching with described inner tube external diameter and the projection that is provided with along the circumference in described hole, or comprises excircle that matches with described external pipe internal diameter and the projection that is provided with along described excircle.
In bimetal pipe mfg. moulding die of the present invention, described projection along described hole radially or the sectional shape radially of described excircle be circular arc, ellipse arc or dihedral.
In bimetal pipe mfg. moulding die of the present invention, described excircle is arranged on circular plate, Circular Plate or the cylinder, comprise the circular cone guide section of fixedlying connected with this circular plate, described circular cone guide section end diameter is less than described external pipe internal diameter, and the described excircle equal diameters of described circular cone guide section Outside diameter and described circular plate, Circular Plate or cylinder is also alignd fixedly connected with the described excircle of this circular plate, Circular Plate or cylinder.
Three technological schemes that adopted that the present invention solves its technical problem are: a kind of double-level-metal pipe manufacturing method is provided, it is characterized in that, adopt the cutting of bimetal pipe mfg. moulding die to run through the channel groove at bimetal pipe two ends;
Described bimetal pipe comprises the inner tube and the external pipe of snug fit, and described inner tube and external pipe directly comprise the passage that runs through described bimetal pipe two ends;
Described bimetal pipe mfg. moulding die comprises the hole of matching with described inner tube external diameter and the projection that is provided with along the circumference in described hole, or comprises excircle that matches with described external pipe internal diameter and the projection that is provided with along described excircle; Described method comprises:
S1, the described bimetal pipe mfg. moulding die draw cut of employing go out the described groove of inner tube and/or external pipe;
S2, described inner tube is inserted in the described external pipe;
S3, adopt the plumber's skill that rises that described inner tube outer wall and described external pipe inwall are close to.
In double-level-metal pipe manufacturing method of the present invention, in the draw cut operation of step S1, described inner tube or described external pipe only move along the axial direction of described inner tube or the axial direction of described external pipe with respect to described bimetal pipe mfg. moulding die.
In double-level-metal pipe manufacturing method of the present invention, in the draw cut operation of step S1, described inner tube or described external pipe with respect to described bimetal pipe mfg. moulding die along the axial direction of the axial direction of described inner tube or described external pipe move, described inner tube or described external pipe are rotated along the axial direction of described inner tube or the axial direction of described external pipe with respect to described bimetal pipe mfg. moulding die simultaneously.
Implement bimetal pipe of the present invention and mfg. moulding die thereof and manufacture method, compared with the prior art, its beneficial effect is:
1, the user demand to bimetal pipe is satisfied in the manufacturing that has proposed to have the double-level-metal tubular construction of passage and realized this structure;
2, simple in structure, implement easily.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the viewgraph of cross-section of prior art double coiled welded tube.
Fig. 2 is bimetal pipe embodiment's one an of the present invention viewgraph of cross-section.
Fig. 3 is an I portion enlarged view among Fig. 2.
Fig. 4 is bimetal pipe embodiment's two an of the present invention I portion enlarged view.
Fig. 5 is bimetal pipe embodiment's three an of the present invention I portion enlarged view.
Fig. 6 is bimetal pipe embodiment's four an of the present invention viewgraph of cross-section.
Fig. 7 is bimetal pipe embodiment's four an of the present invention viewgraph of cross-section.
Fig. 8 is bimetal pipe mfg. moulding die embodiment's one an of the present invention plan view.
Fig. 9 is an II portion enlarged view among Fig. 8.
Figure 10 is an A-A sectional view among Fig. 8.
Figure 11 is bimetal pipe mfg. moulding die embodiment's two an of the present invention plan view.
Figure 12 is an III portion enlarged view among Figure 11.
Embodiment
As Fig. 2, shown in Figure 3, bimetal pipe of the present invention comprises the inner tube 2 and the external pipe 1 of snug fit, comprises the passage 3 that runs through the bimetal pipe two ends between inner tube 2 and the external pipe.
In the present embodiment, passage 3 is by being separately positioned on semicircle groove on inner tube 2 outer walls and the semicircle groove on external pipe 1 inwall, and two groove correspondences are provided with the formation manhole.
In other embodiments, the semicircle groove on semicircle groove on inner tube 2 outer walls and external pipe 1 inwall can not corresponding setting, also can realize the object of the invention.
In other embodiments, as Fig. 4, shown in Figure 5, the shape of groove can adopt half elliptic, dihedral, two half elliptics and the oval-shaped passageway of formation of getting up, two dihedrals and the diamond passages of formation of getting up.Equally, semiellipse groove/dihedral groove on inner tube 2 outer walls and the semiellipse groove/dihedral groove on external pipe 1 inwall can not corresponding settings, also can realize the object of the invention.
As Fig. 6, shown in Figure 7, can only groove formation passage 3 be set on inner tube 2 outer walls or on external pipe 1 inwall.
The shape of cross section of passage can design as required, is not limited to the above-mentioned sectional shape of enumerating.
As Fig. 8, shown in Figure 9, the bimetal pipe mfg. moulding die that the present invention is used to make above-mentioned bimetal pipe adopts the excircle that matches with the internal diameter of external pipe 1 and along the structure of the projection 41 of this excircle setting.Excircle can be arranged on the circular plate 4, on the Circular Plate, cylinder is first-class.The shape of projection 41 designs as required, can adopt to include but not limited to circular arc, semicircle, ellipse arc, half elliptic, dihedral etc.Such bimetal pipe mfg. moulding die is used to process the recess channels on external pipe 1 inwall.
In order to process the recess channels of designed depth step by step, above-mentioned bimetal pipe mfg. moulding die can be designed to serial mould, and the height of the projection 41 of serial mould increases step by step.
Need when above-mentioned bimetal pipe mfg. moulding die uses that this mould is fixedly connected on tie rod end and carry out draw cut.
As shown in figure 10, the guiding in order to realize to external pipe 1 inwall draw cut groove, above-mentioned bimetal pipe mfg. moulding die is provided with circular cone guide section 42.The end diameter of circular cone guide section 42 is less than the internal diameter of external pipe 1, and the excircle equal diameters of the Outside diameter of circular cone guide section 42 and the circular plate that the mould excircle is set, Circular Plate or cylinder etc. is also alignd fixedly connected with the excircle of this circular plate, Circular Plate or cylinder.During use, the small end of circular cone guide section 42 aligns level and smooth fixedly connected or directly pull bar and circular cone guide section 42 is designed to an integral body with the cylinder tie rod end.
As Figure 11, shown in Figure 12, the bimetal pipe mfg. moulding die that the present invention is used to make above-mentioned bimetal pipe also adopts the hole of matching with the external diameter of inner tube 2 and the structure of the projection 51 that is provided with along the circumference in this hole.It is on the templates 5 such as square or rectangular that above-mentioned hole can be arranged on the cross section.The profile of template requires to determine with the global design of satisfying mould bases.
Above-mentioned bimetal pipe mfg. moulding die is used for the outer wall recess channels of draw cut inner tube 2.During use, above-mentioned bimetal pipe mfg. moulding die is installed on the mould bases.
Double-level-metal pipe manufacturing method of the present invention adopts above-mentioned bimetal pipe mfg. moulding die cutting to run through the channel groove at above-mentioned bimetal pipe two ends.
This method comprises the steps:
The first step, the above-mentioned bimetal pipe mfg. moulding die draw cut of employing go out the channel groove on inner tube and/or the external pipe;
Second goes on foot, inner tube 2 is inserted in the external pipe 1;
The 3rd step, adopt the existing plumber's skill that rises, inner tube outer wall and external pipe inwall are close to inner tube 2 pipe that rises.
During channel groove in above-mentioned steps one on draw cut inner tube and/or the external pipe, inner tube 2 or external pipe 1 only move along the axial direction of inner tube or the axial direction of external pipe with respect to the bimetal pipe mfg. moulding die.Like this, inner tube can obtain being parallel to the channel groove of inner tube axial direction, and external pipe can obtain being parallel to the channel groove of external pipe axial direction.
During channel groove in above-mentioned steps one on draw cut inner tube and/or the external pipe, inner tube 2 or external pipe 1 with respect to the bimetal pipe mfg. moulding die along the axial direction of the axial direction of inner tube or external pipe move, inner tube or external pipe are rotated along the axial direction of inner tube or the axial direction of external pipe with respect to the bimetal pipe mfg. moulding die simultaneously.Like this, inner tube can obtain along the channel groove of inner tube outer wall helix, and external pipe can obtain along the channel groove of external pipe spiral inner wall line direction.
Claims (10)
1. bimetal pipe comprises it is characterized in that the inner tube and the external pipe of snug fit, comprises the passage that runs through described bimetal pipe two ends between described inner tube and the external pipe.
2. bimetal pipe as claimed in claim 1 is characterized in that, described passage is to be arranged on described inner tube outer wall or described external pipe inwall or to be arranged on described inner tube outer wall simultaneously and described external pipe inwall runs through the groove at described bimetal pipe two ends.
3. bimetal pipe as claimed in claim 2 is characterized in that described groove cross section is shaped as semicircle, semiellipse or dihedral.
4. as the described bimetal pipe of one of claim 1 to 3, it is characterized in that, described channel direction edge is parallel to the direction of described inner tube axis or is parallel to the direction setting of described external pipe axis, or described channel direction is provided with along corresponding described inner tube outer surface helix or along corresponding described external pipe internal surface helix.
5. a bimetal pipe mfg. moulding die is characterized in that, described bimetal pipe comprises the inner tube and the external pipe of snug fit, and described inner tube and external pipe directly comprise the passage that runs through described bimetal pipe two ends; Described mfg. moulding die comprises the hole of matching with described inner tube external diameter and the projection that is provided with along the circumference in described hole, or comprises excircle that matches with described external pipe internal diameter and the projection that is provided with along described excircle.
6. bimetal pipe mfg. moulding die as claimed in claim 5 is characterized in that, described projection along described hole radially or the sectional shape radially of described excircle be circular arc, ellipse arc or dihedral.
7. bimetal pipe mfg. moulding die as claimed in claim 5, it is characterized in that, described excircle is arranged on circular plate, Circular Plate or the cylinder, comprise the circular cone guide section of fixedlying connected with this circular plate, described circular cone guide section end diameter is less than described external pipe internal diameter, and the described excircle equal diameters of described circular cone guide section Outside diameter and described circular plate, Circular Plate or cylinder is also alignd fixedly connected with the described excircle of this circular plate, Circular Plate or cylinder.
8. a double-level-metal pipe manufacturing method is characterized in that, adopts the cutting of bimetal pipe mfg. moulding die to run through the channel groove at bimetal pipe two ends;
Described bimetal pipe comprises the inner tube and the external pipe of snug fit, and described inner tube and external pipe directly comprise the passage that runs through described bimetal pipe two ends;
Described bimetal pipe mfg. moulding die comprises the hole of matching with described inner tube external diameter and the projection that is provided with along the circumference in described hole, or comprises excircle that matches with described external pipe internal diameter and the projection that is provided with along described excircle; Described method comprises:
S1, the described bimetal pipe mfg. moulding die draw cut of employing go out the described groove of inner tube and/or external pipe;
S2, described inner tube is inserted in the described external pipe;
S3, adopt the plumber's skill that rises that described inner tube outer wall and described external pipe inwall are close to.
9. double-level-metal pipe manufacturing method as claimed in claim 8, it is characterized in that, in the draw cut operation of step S1, described inner tube or described external pipe only move along the axial direction of described inner tube or the axial direction of described external pipe with respect to described bimetal pipe mfg. moulding die.
10. double-level-metal pipe manufacturing method as claimed in claim 8, it is characterized in that, in the draw cut operation of step S1, described inner tube or described external pipe with respect to described bimetal pipe mfg. moulding die along the axial direction of the axial direction of described inner tube or described external pipe move, described inner tube or described external pipe are rotated along the axial direction of described inner tube or the axial direction of described external pipe with respect to described bimetal pipe mfg. moulding die simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910189016A CN101776184A (en) | 2009-12-14 | 2009-12-14 | Double-layer metal pipe and manufacture mold and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910189016A CN101776184A (en) | 2009-12-14 | 2009-12-14 | Double-layer metal pipe and manufacture mold and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101776184A true CN101776184A (en) | 2010-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910189016A Pending CN101776184A (en) | 2009-12-14 | 2009-12-14 | Double-layer metal pipe and manufacture mold and manufacturing method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216449A (en) * | 2012-01-18 | 2013-07-24 | 熊荣华 | Fluid power technology of pipe cavity with linear track and closed cross section |
| CN108603801A (en) * | 2015-12-18 | 2018-09-28 | 山特维克原料技术德国公开股份有限公司 | Sensor and its manufacturing method for high-tension line |
| CN108778547A (en) * | 2015-12-18 | 2018-11-09 | 山特维克原料技术德国公开股份有限公司 | Pipe made of the method for pipe and a kind of metal made of a kind of manufacture metal |
| CN110117751A (en) * | 2019-06-18 | 2019-08-13 | 山东远大锅炉配件制造有限公司 | A kind of wear resistant corrosion resistant composite bimetal pipe material and preparation method thereof |
-
2009
- 2009-12-14 CN CN200910189016A patent/CN101776184A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216449A (en) * | 2012-01-18 | 2013-07-24 | 熊荣华 | Fluid power technology of pipe cavity with linear track and closed cross section |
| CN108603801A (en) * | 2015-12-18 | 2018-09-28 | 山特维克原料技术德国公开股份有限公司 | Sensor and its manufacturing method for high-tension line |
| CN108778547A (en) * | 2015-12-18 | 2018-11-09 | 山特维克原料技术德国公开股份有限公司 | Pipe made of the method for pipe and a kind of metal made of a kind of manufacture metal |
| US11112063B2 (en) | 2015-12-18 | 2021-09-07 | Sandvik Materials Technology Deutschland Gmbh | Sensor for a high-pressure line, and method for producing same |
| CN110117751A (en) * | 2019-06-18 | 2019-08-13 | 山东远大锅炉配件制造有限公司 | A kind of wear resistant corrosion resistant composite bimetal pipe material and preparation method thereof |
| CN110117751B (en) * | 2019-06-18 | 2020-10-27 | 山东远大锅炉配件制造有限公司 | Wear-resistant corrosion-resistant bimetal composite pipe material and preparation method thereof |
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| CB02 | Change of applicant information |
Address after: 518104 Guangdong Province, Shenzhen Baoan District manhole after Mao Ting Zhoushan Fourth Industrial Zone No. 24 Applicant after: Shenzhen Power World New Energy Technology Co., Ltd. Address before: 518104 Guangdong Province, Shenzhen Baoan District manhole after Mao Ting Zhoushan Fourth Industrial Zone No. 24 Applicant before: Shenzhen Powerworld Machinery Equipment Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: SHENZHEN POWER WORLD MACHINERY EQUIPMENT CO., LTD. TO: SHENZHEN POWER WORLD NEW ENERGY TECHNOLOGY CO., LTD. |
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Application publication date: 20100714 |