CN203343309U - Thermal expansion device for metallurgical bonding bimetal tube - Google Patents
Thermal expansion device for metallurgical bonding bimetal tube Download PDFInfo
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- CN203343309U CN203343309U CN 201320395841 CN201320395841U CN203343309U CN 203343309 U CN203343309 U CN 203343309U CN 201320395841 CN201320395841 CN 201320395841 CN 201320395841 U CN201320395841 U CN 201320395841U CN 203343309 U CN203343309 U CN 203343309U
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- connecting band
- bimetal tube
- fixedly connected
- top head
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Abstract
The utility model discloses a thermal expansion device for a metallurgical bonding bimetal tube. The thermal expansion device comprises a top head pull rod, an expansion tube top head and an induction heating coil, wherein the top head pull rod is fixedly connected to the expansion tube top head, and the induction heating coil is located at the periphery of the expansion tube top head. The expansion tube top head comprises a connecting band and a working band both of which are cylindrical; one end of the connecting band is fixedly connected to the top head pull rod while the other end of the connecting band is fixedly connected to the working band; the joint of the connecting band and the working band is an arc-shaped working surface; the diameter of the connecting band is smaller than that of the working band. As the thermal expansion device is used for the thermal expansion technology of the bimetal tube, the characteristics such as simple operation, short time and low cost are achieved.
Description
Technical field
The utility model relates to the manufacturing installation technical field of metallurgical binding bimetal tube, relates in particular to the hot enlarging device of a kind of metallurgical binding bimetal tube.
Background technology
The production process complexity of metallurgical binding bimetal tube, cost is high, changes frequently specification and will make manufacture difficulty strengthen in manufacturing process.Particularly adopt spun casting blank extruding metallurgical binding bimetal tube, spun casting technique relates to the techniques such as casting exospheric temperature, casting internal layer temperature, the middle time of staying, pipe die rotating speed, coating layer thickness.So cast molding should not be changed the setting size, otherwise will greatly affect the cast molding rate, and cause cost to increase, but also easily affect the quality of pipe.Extruding is the main production process of metallurgical binding bimetal tube, and because device systems is huge, more mold exchange is loaded down with trivial details and the cycle is longer, and operating cost is high, so should not change specification.
The utility model content
Technical problem to be solved in the utility model is to provide the hot enlarging device of a kind of metallurgical binding bimetal tube, uses described device to carry out heat to bimetal tube and expands technique, have simple to operate, the characteristics such as the time is short, and cost is low.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: the hot enlarging device of a kind of metallurgical binding bimetal tube, it is characterized in that comprising top pull bar, expanding top and load coil, described top pull bar is fixedly connected with expanding top, and described load coil is positioned at the periphery of described expanding top.
Further, described expanding top comprises connecting band and work band, described connecting band and work band are cylindrical, one end of described connecting band is fixedly connected with described top pull bar, the other end of described connecting band is fixedly connected with described work band, connecting band is working face with the junction of work band, and described working face is arcwall face, and the diameter of described connecting band is less than the diameter of work band.
Further, doubly, the left end of described connecting band is provided with cylindrical protrusions to the 2-2.5 that the length of described expanding top is described work band diameter, and described projection is provided with screw thread, and described top pull bar is fixedly connected with by screw thread with the projection on connecting band.
The beneficial effect that adopts technique scheme to produce is: the utility model comprises expanding top, top pull bar and load coil, and expanding top links together by screw thread and top pull bar, forms the core bar used in expander technique.Load coil is fixed on the position of expander, and purpose is after bimetal tube is heated to 800～950 ℃, promotes bimetal tube and carries out expander.Before expander, in order to improve the lubricating condition in the expander process, at the inner surface of bimetal tube, graphite, Reducing distortion frictional force, make distortion more even.The design of top working face need be longer than common pipe expander top working face, top length is 2～2.5 times of work band diameter, and employing arcwall face, main purpose is that Zona transformans is lengthened, deformation extent alleviates, avoid occurring expanding splitting phenomenon, load coil extends, to adapt to the variation of expanding top.
By using described device to carry out expander technique, make production metallurgy few in conjunction with the specifications vary of bimetal tube, greatly reduced manufacturing cost, be conducive to product expanded application space, and have simple to operately, the time is short, the efficiency high, open up new manufacture thinking for the metallurgical binding bimetal tube, there is larger value.In addition, described device simple in structure, low cost of manufacture, have and promote preferably and prospect of the application.
The accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is sectional structure schematic diagram of the present utility model;
Fig. 2 is the structural representation of expanding top in the utility model;
Fig. 3 is the structural representation of load coil in the utility model;
Wherein: 1, top pull bar 2, expanding top 21, connecting band 211, projection 22, work be with 23, working face 3, load coil 4, bimetal tube.
The specific embodiment
As Figure 1-3, the hot enlarging device of a kind of metallurgical binding bimetal tube, comprise top pull bar 1, expanding top 2 and load coil 3.Described load coil 3 is positioned at the periphery of described expanding top 2, and described load coil and expanding top maintenance certain distance, so that bimetal tube can be inserted on described expanding top.
Described expanding top 2 comprises that connecting band 21 and work is with 22, and described connecting band 21 and work are with 22 for cylindrical.One end of described connecting band 21 is fixedly connected with described top pull bar 1, and the other end of described connecting band 21 is fixedly connected with described work band 22.Connecting band 21 is working face 23 with the junction of working with 22, and described working face 23 is arcwall face, and the diameter of described connecting band 21 is less than the diameter of work band 22.Doubly, the left end of described connecting band 21 is provided with cylindrical protrusions 211 to the 2-2.5 that the length of described expanding top 2 is described work band 22 diameters, and described protruding 211 are provided with screw thread, and described top pull bar 1 is fixedly connected with by screw thread with the projection 211 on connecting band 21.
The utility model comprises expanding top, top pull bar and load coil, and expanding top links together by screw thread and top pull bar, forms the core bar used in expander technique.Load coil is fixed on the position of expander, and purpose is after bimetal tube is heated to 800～950 ℃, promotes bimetal tube and carries out expander.Before expander, in order to improve the lubricating condition in the expander process, at the inner surface of bimetal tube, graphite, Reducing distortion frictional force, make distortion more even.The design of top working face need be longer than common pipe expander top working face, top length is 2～2.5 times of work band diameter, and employing arcwall face, main purpose is that Zona transformans is lengthened, deformation extent alleviates, avoid occurring expanding splitting phenomenon, load coil extends, to adapt to the variation of expanding top.
By using described device to carry out expander technique, make production metallurgy few in conjunction with the specifications vary of bimetal tube, greatly reduced manufacturing cost, be conducive to product expanded application space, and have simple to operately, the time is short, the efficiency high, open up new manufacture thinking for the metallurgical binding bimetal tube, there is larger value.In addition, described device simple in structure, low cost of manufacture, have and promote preferably and prospect of the application.
Applied specific case herein principle of the present utility model and embodiment thereof are set forth, the explanation of above embodiment is just with helping understand method of the present utility model and core concept thereof.It should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (3)
1. the hot enlarging device of metallurgical binding bimetal tube, it is characterized in that comprising top pull bar (1), expanding top (2) and load coil (3), described top pull bar (1) is fixedly connected with expanding top (2), and described load coil (3) is positioned at the periphery of described expanding top (2).
2. the hot enlarging device of a kind of metallurgical binding bimetal tube according to claim 1, it is characterized in that described expanding top (2) comprises connecting band (21) and work band (22), described connecting band (21) and work band (22) are cylindrical, one end of described connecting band (21) is fixedly connected with described top pull bar (1), the other end of described connecting band (21) is fixedly connected with described work band (22), connecting band (21) is working face (23) with the junction of work band (22), described working face (23) is arcwall face, the diameter of described connecting band (21) is less than the diameter of work band (22).
3. the hot enlarging device of a kind of metallurgical binding bimetal tube according to claim 2, the 2-2.5 that the length that it is characterized in that described expanding top (2) is described work band (22) diameter doubly, the left end of described connecting band (21) is provided with cylindrical protrusions (211), described projection (211) is provided with screw thread, and described top pull bar (1) is fixedly connected with by screw thread with the projection (211) on connecting band (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320395841 CN203343309U (en) | 2013-07-04 | 2013-07-04 | Thermal expansion device for metallurgical bonding bimetal tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320395841 CN203343309U (en) | 2013-07-04 | 2013-07-04 | Thermal expansion device for metallurgical bonding bimetal tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203343309U true CN203343309U (en) | 2013-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320395841 Expired - Fee Related CN203343309U (en) | 2013-07-04 | 2013-07-04 | Thermal expansion device for metallurgical bonding bimetal tube |
Country Status (1)
| Country | Link |
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| CN (1) | CN203343309U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104607560A (en) * | 2015-02-04 | 2015-05-13 | 常州市腾田液压机械有限公司 | Large-diameter double-metal composite pipe manufacturing technology and diameter expanding forming device |
| CN106825271A (en) * | 2016-12-23 | 2017-06-13 | 内蒙古北方重工业集团有限公司 | The processing method that heavy caliber thick wall extrudes cast pipe mold enlarging |
| CN109954806A (en) * | 2017-12-26 | 2019-07-02 | 重庆达德机械制造有限公司 | A kind of device for expanding bend pipe aperture |
-
2013
- 2013-07-04 CN CN 201320395841 patent/CN203343309U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104607560A (en) * | 2015-02-04 | 2015-05-13 | 常州市腾田液压机械有限公司 | Large-diameter double-metal composite pipe manufacturing technology and diameter expanding forming device |
| CN106825271A (en) * | 2016-12-23 | 2017-06-13 | 内蒙古北方重工业集团有限公司 | The processing method that heavy caliber thick wall extrudes cast pipe mold enlarging |
| CN109954806A (en) * | 2017-12-26 | 2019-07-02 | 重庆达德机械制造有限公司 | A kind of device for expanding bend pipe aperture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HANDAN XINXING SPECIAL PIPE CO., LTD. Free format text: FORMER OWNER: XINXING CAST PIPE CO., LTD. Effective date: 20140909 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 056300 HANDAN, HEBEI PROVINCE TO: 056046 HANDAN, HEBEI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140909 Address after: 056046, No. 1, Xinxing street, eco industrial city, Handan, Hebei Patentee after: HANDAN XINXING SPECIAL PIPE MATERIAL CO., LTD. Address before: 056300 Luoyang, Hebei City, Wuan, north of the village on the north of Handan Patentee before: Xinxing Ductile Iron Pipes Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20170704 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |