CN103559959A - Two-hole hollow conductor and manufacturing method thereof - Google Patents
Two-hole hollow conductor and manufacturing method thereof Download PDFInfo
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- CN103559959A CN103559959A CN201310584294.2A CN201310584294A CN103559959A CN 103559959 A CN103559959 A CN 103559959A CN 201310584294 A CN201310584294 A CN 201310584294A CN 103559959 A CN103559959 A CN 103559959A
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Abstract
The invention provides a method for manufacturing a two-hole hollow conductor. The method comprises the copper ingot smelting process, the extrusion process and the chain pulling process. According to the extrusion process, an extrusion die is adopted as a composite bridge-type die, the new composite bridge-type die structure is provided, when the composite bridge-type die is used, a traction machine (3) and a through-type water groove (4) are added, the traction machine (3) is used for conducting traction on the extruded two-hole hollow conductor, and the through-type water groove (4) comprises a water groove body (4.1) and a water inlet spraying tube (4.2) arranged at the front end of the water groove body. When the composite bridge-type die is used and the two-hole hollow conductor passes, the two-hole conductor is arranged on the water groove body in a lapped mode, wherein the extrusion ratio in the extrusion process is larger than 40, and the temperature of an extruded copper ingot is 920-940 DEG C. According to method for manufacturing the two-hole hollow conductor, the problem of welding-on quality and the problem that the two-hole hollow conductor is difficultly separated from residual pressure are solved, and the integrated copper two-hole hollow conductor is produced.
Description
Technical field
The present invention relates to mechanical field, relate in particular to a kind of hollow conductor, specifically refer to a kind of diplopore hollow conductor and manufacture method thereof.
Background technology
The principle of generator generation current is that rotor rotates in magnetic field, epitrochanterian conductor cutting magnetic line, generation current.The rotor conductor of the outer high-rating generator of Current Domestic generally adopts copper bar, due to copper bar poor radiation, causes rotor in hot environment, to work.Insulation property due to insulating barrier between every circle copper bar are to have this substantial connection with temperature in addition, and temperature is higher, and insulation property are poorer, and both are exponential relationship.So in order to improve the performance of generator, just introduced single hole hollow conductor as rotor conductor, this mode is convenient to gas and is passed through from its inside, takes away heat, thereby reduces the working temperature of conductor and insulating barrier thereof, has improved the resistance to overturning of generator.But along with the increase of generator installed capacity, the sectional area of rotor conductor constantly increases, the spacing of single hole tubular wire two side continues to increase, and its upper and lower two walls are easily out of shape.After this occurred again diplopore tubular wire, this structure can realize air-cooled feature, guarantees again the stability of product, and deformation does not occur.
Take copper material as raw material production diplopore hollow conductor, domestic general employing becomes 2 E type copper strap wires by two rectangle copper strap wires by machining, or by extruding, cold-drawn mode, process 2 capable copper strap wires of E, then by riveted joint or welding manner, 2 E type copper strap wires are formed to diplopore hollow conductor.Which lumber recovery is low, and the production cycle is long, and production cost is high.
Use this mode of assembling die extrude tubes to be often applied in squeezable plastic tube or aluminum pipe, this is because the extrusion temperature of plastics and aluminium is lower, cuts extrusion temperature wider range.But during due to extruding copper product, the extrusion temperature of copper is at 800 ℃---and 900 ℃, and when using assembling die extruding copper pipe, there is the process of shunting and seam, problem due to separated difficulty more than the problem that has a welding quality and product and pressure, causes assembling die in the process of extruding copper pipe, not use so far.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of new diplopore hollow conductor and manufacture method thereof, successfully solved the problem of separated difficulty more than welding quality problem and product and pressure.
First technical solution of the present invention provides a kind of manufacture method of diplopore hollow conductor, comprise copper ingot melting operation, extrusion process and chain draw operation, the extrusion die that described extrusion process adopts is combination bridge-type mould, combination bridge-type mould refers to, described combination bridge-type mould comprises extruding die body and extrusion die bridge, described extruding die body has the pass that the appearance profile with diplopore hollow conductor matches, described extrusion die bridge is flat structure and has the shank of installing with the combination of extruding die body and be located at the middle extrusion modling of shank portion, described extrusion modling portion has pass with extruding die body and matches and form the die cavity of diplopore hollow conductor cross sectional shape, described extrusion modling portion outside also has charging to press remaining part, the upper surface of described extrusion die bridge is cambered surface, in use, increase hauling machine and through type tank, hauling machine is used for the diplopore hollow conductor of drought, through type tank comprises tank and is located at the water inlet shower of tank front end, in use diplopore hollow conductor by time diplopore hollow conductor set up on tank and pass through, wherein, in extrusion process, extrusion ratio is greater than 40, the copper ingot temperature of extruding is 920～940 ℃.
Adopt after such scheme, extrusion process of the present invention is that extrusion axis promotes dummy block, acts on the copper ingot of 900 ℃, makes copper ingot pass through extrusion die.When copper ingot process extrusion die bridge, copper is split into two parts, and these two parts press remaining part to enter extruding die body by charging subsequently, under the effect of extruding force, weld together again, then, by mould, have just formed needed shape, push complete, material presses remaining part to exist more than pressure, and in the upper surface of extrusion die bridge, be that cambered surface top end starts fracture, more than having the complete clout of seam in seam chamber and pressing, be connected, under the traction action of hauling machine, to press remaining from tractive in die cavity out, thereby product and the problem of pressing remaining separated difficulty have successfully been solved, in addition, the diplopore hollow conductor squeezing out enters through type tank by hauling machine traction, when the head of product is through after tank, just there will be no water to enter the endoporus of product, so just guaranteed the temperature of copper in mould, guaranteed seam effect, in through type tank, diplopore hollow conductor is suspended in the water in tank, utilize liquid level difference to guarantee diplopore hollow conductor to immerse in tank.
Wherein, described tank length is 3～5 meters.
As preferably, described tank length is 4 meters.
The diplopore hollow conductor making according to aforesaid method, hollow conductor is copper with diplopore and be made into integration.
As preferably, described hollow conductor profile is a kind of in square, kidney-shaped, circle.
As preferably, described hollow conductor endoporus is a kind of in square, kidney-shaped, circle.
Accompanying drawing explanation
Accompanying drawing 2 is vertical views of Fig. 1;
Accompanying drawing 4 is upward views of Fig. 3;
Accompanying drawing 5 is left views of Fig. 3;
Accompanying drawing 6 is bridge-type set of molds assembling structure schematic diagrames of the present invention;
Accompanying drawing 7 is that the present invention prepares diplopore hollow conductor device therefor overall structure schematic diagram;
Accompanying drawing 8 is diplopore hollow conductor cross-sectional structure schematic diagrames that the present invention prepares gained.
Shown in figure:
1, extruding die body, 1.1, pass, 2, extrusion die bridge, 2.1, shank, 2.2, extrusion modling portion, 2.2.1, die cavity, remaining part, 2.2.3, cambered surface are pressed in 2.2.2, charging, 3, hauling machine, 4, through type tank, 4.1, tank, 4.2, water inlet shower, 5, extrusion axis, 6, dummy block, 7, copper ingot, 8, recipient, 9, die sleeve, 10, die-cushion, 11, die holder, 12, liquid level face.
Embodiment
Embodiment below in conjunction with 1 pair of diplopore hollow conductor of the present invention of accompanying drawing and manufacture method thereof is described in detail below, and should be understood that following embodiment is to most preferred embodiment of the present invention, not as limitation of the present invention.
Combination bridge-type mould structure schematic diagram for being used in the present embodiment as shown in accompanying drawing 1 to Fig. 6, described combination bridge-type mould comprises extruding die body 1 and extrusion die bridge 2, described extruding die body 1 has the pass 1.1 that the appearance profile with diplopore hollow conductor matches, described extrusion die bridge 2 is flat structure and has the shank 2.1 of installing with the combination of extruding die body and be located at the middle extrusion modling of shank portion 2.2, described extrusion modling portion 2.2 has pass with extruding die body and matches and form the die cavity 2.2.1 of diplopore hollow conductor cross sectional shape, described extrusion modling portion 2.2 outsides also have charging to press remaining part 2.2.2, the upper surface of described extrusion die bridge 2 is cambered surface 2.2.3, in use, as shown in Figure 7, to combine bridge-type mould by die holder 11, die sleeve 9 and die-cushion 10 are fixed in recipient 8, when extruding, copper ingot 7 is placed in recipient 8, extrusion axis 5 pushes by 6 pairs of copper ingots 7 of dummy block, copper ingot 7 is split under pressure two parts and enters into respectively and in die cavity 2.2.1, form diplopore hollow conductor at extrusion die bridge place, the diplopore hollow conductor squeezing out is undertaken cooling by described through type tank under the traction of the traction arm of hauling machine 3, when the head of product is through after tank, just there will be no water to enter the endoporus of product, so just guaranteed the temperature of copper in mould, guaranteed seam effect, after a copper ingot is about to extruding, copper ingot 7 residues press the remaining upper end surface at extrusion die bridge 2 to form fracture, splitting into two parts presses remaining part 2.2.2 to enter die cavity 2.2.1 by charging, residue is pulled out by hauling machine 3 more than pressing, product and the problem of pressing remaining separated difficulty have successfully been solved thus.In the present embodiment, assurance Weld strength, extrusion ratio is 50,920～940 ℃ of copper ingot heating-up temperatures, the tank length of through type tank is 4 meters.
As shown in Figure 8, the diplopore hollow conductor that extrusion modling of the present invention is produced, described hollow conductor is copper with diplopore and be made into integration, the profile of described diplopore hollow conductor is that square, endoporus is also for square.
Above embodiment is that 1 pair of best embodiment of the present invention is described by reference to the accompanying drawings, but these explanations can not be understood to limit scope of the present invention, obviously, under design of the present invention, still can make a lot of variations.In this explanation, any any change of making under inventive concept of the present invention all will fall within the scope of protection of the present invention.
Claims (6)
1. the manufacture method of a diplopore hollow conductor, comprise copper ingot melting operation, extrusion process and chain draw operation, it is characterized in that: the extrusion die that described extrusion process adopts is combination bridge-type mould, combination bridge-type mould refers to, described combination bridge-type mould comprises extruding die body (1) and extrusion die bridge (2), described extruding die body (1) has the pass (1.1) that the appearance profile with diplopore hollow conductor matches, described extrusion die bridge (2) is flat structure and has and push the shank (2.1) of die body combination installation and be located at the middle extrusion modling portion (2.2) of shank, described extrusion modling portion (2.2) has pass with extruding die body and matches and form the die cavity (2.2.1) of diplopore hollow conductor cross sectional shape, described extrusion modling portion (2.2) outside also has charging to press remaining part (2.2.2), the upper surface of described extrusion die bridge (2) is cambered surface (2.2.3), in use, increase hauling machine (3) and through type tank (4), hauling machine (3) is used for the diplopore hollow conductor of drought, through type tank (4) comprises tank (4.1) and is located at the water inlet shower (4.2) of tank front end, in use diplopore hollow conductor by time diplopore hollow conductor set up on tank and pass through, wherein, in extrusion process, extrusion ratio is greater than 40, the copper ingot temperature of extruding is 920～940 ℃.
2. the manufacture method of diplopore hollow conductor according to claim 1, is characterized in that: described tank length is 3～5 meters.
3. the manufacture method of diplopore hollow conductor according to claim 3, is characterized in that: described tank length is 4 meters.
4. according to the prepared diplopore hollow conductor of the arbitrary claim of claims 1 to 3, it is characterized in that: described hollow conductor is copper with diplopore and be made into integration.
5. diplopore hollow conductor according to claim 4, is characterized in that: described hollow conductor profile is a kind of in square, kidney-shaped, circle.
6. diplopore hollow conductor according to claim 4, is characterized in that: described hollow conductor endoporus is a kind of in square, kidney-shaped, circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310584294.2A CN103559959B (en) | 2013-11-20 | 2013-11-20 | Two-hole hollow conductor and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310584294.2A CN103559959B (en) | 2013-11-20 | 2013-11-20 | Two-hole hollow conductor and preparation method thereof |
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| CN103559959A true CN103559959A (en) | 2014-02-05 |
| CN103559959B CN103559959B (en) | 2017-01-04 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201064794Y (en) * | 2007-07-03 | 2008-05-28 | 江阴市江顺模具有限公司 | Concentrated type multi-mold-core refrigeration pipe hot extrusion mold |
| CN101199971A (en) * | 2007-11-14 | 2008-06-18 | 上海飞驰铜铝材有限公司 | Process for vacuum weld chamber combined dies copper production porous shape |
| JP2008246580A (en) * | 2008-05-07 | 2008-10-16 | Showa Denko Kk | Manufacturing method of core of extruding die, and core of extruding die |
| CN201220247Y (en) * | 2008-07-08 | 2009-04-15 | 无锡海特铝业有限公司 | Hot-extrusion mould for aluminum alloy section bar |
| CN101968976A (en) * | 2009-07-28 | 2011-02-09 | 济南宝世达实业发展有限公司 | Unequal wall thickness hollow wire of rotor winding and processing technology thereof |
-
2013
- 2013-11-20 CN CN201310584294.2A patent/CN103559959B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201064794Y (en) * | 2007-07-03 | 2008-05-28 | 江阴市江顺模具有限公司 | Concentrated type multi-mold-core refrigeration pipe hot extrusion mold |
| CN101199971A (en) * | 2007-11-14 | 2008-06-18 | 上海飞驰铜铝材有限公司 | Process for vacuum weld chamber combined dies copper production porous shape |
| JP2008246580A (en) * | 2008-05-07 | 2008-10-16 | Showa Denko Kk | Manufacturing method of core of extruding die, and core of extruding die |
| CN201220247Y (en) * | 2008-07-08 | 2009-04-15 | 无锡海特铝业有限公司 | Hot-extrusion mould for aluminum alloy section bar |
| CN101968976A (en) * | 2009-07-28 | 2011-02-09 | 济南宝世达实业发展有限公司 | Unequal wall thickness hollow wire of rotor winding and processing technology thereof |
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| CN103559959B (en) | 2017-01-04 |
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