CN103559959B - Two-hole hollow conductor and preparation method thereof - Google Patents
Two-hole hollow conductor and preparation method thereof Download PDFInfo
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- CN103559959B CN103559959B CN201310584294.2A CN201310584294A CN103559959B CN 103559959 B CN103559959 B CN 103559959B CN 201310584294 A CN201310584294 A CN 201310584294A CN 103559959 B CN103559959 B CN 103559959B
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Abstract
The invention provides the manufacture method of a kind of two-hole hollow conductor, including copper ingot melting operation, extrusion process and chain draw operation, the extrusion die that described extrusion process uses is combination bridge-type mould, and provide new combination bridge-type mould structure, in use, increase traction machine (3) and by formula tank (4), traction machine (3) is used for the two-hole hollow conductor of drought, include tank (4.1) by formula tank (4) and be located at the water inlet shower (4.2) of tank front end, in use two-hole hollow conductor by time two-hole hollow conductor ride upon and pass through on tank, wherein, in extrusion process, extrusion ratio is more than 40, the copper ingot temperature of extruding is 920～940 DEG C.The present invention successfully solves welding quality problem and product and separates difficult problem more than pressure, has produced copper one two-hole hollow conductor.
Description
Technical field
The present invention relates to mechanical field, particularly relate to a kind of hollow core conductor, specifically refer to a kind of two-hole hollow conductor and manufacture method thereof.
Background technology
It is that rotor rotates in magnetic field that electromotor produces the principle of electric current, the conductor cutting magnetic line on rotor, produces electric current.The rotor conductor of the outer high-rating generator of Current Domestic typically uses copper bar, due to copper bar poor radiation, causes rotor can work in hot environment.Being to have this substantial connection with temperature additionally, due to the insulating properties of insulating barrier between every circle copper bar, temperature is the highest, and insulating properties are the poorest, and both are exponential relationship.So for the performance improving electromotor, just having introduced single hole hollow core conductor as rotor conductor, this mode is easy to gas and is passed through inside it, takes away heat, thus reduces the operating temperature of conductor and insulating barrier thereof, improves the stability in the large of electromotor.But being as the increase of electromotor 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 deformed.Occurring in that the most again diplopore tubular wire, this structure can realize air-cooled feature, ensures again the stability of product, does not deforms upon.
Two-hole hollow conductor is being produced for raw material with copper material, two rectangle copper strap wires are become 2 E type copper strap wires by machining by domestic general employing, or process 2 E row copper strap wires by extruding, cold-drawn mode, then by riveting or welding manner, 2 E type copper strap wires are formed two-hole hollow conductor.Which lumber recovery is low, and the production cycle is long, and production cost is high.
Using assembling die extruding this mode of tubing to be frequently used in squeezable plastic tube or aluminum pipe, this is owing to the extrusion temperature of plastics and aluminum is relatively low, cuts extrusion temperature wider range.But during due to extruding copper product, the extrusion temperature of copper is at 800 DEG C 900 DEG C, and when using assembling die extruding copper pipe, there is the process of shunting and seam, problem and product owing to there is welding quality separate difficult problem more than pressure, cause assembling die not use during extruding copper pipe.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of new two-hole hollow conductor and manufacture method thereof, successfully solves welding quality problem and product and separates difficult problem more than pressure.
nullFirst the technical solution of the present invention provides the manufacture method of a kind of two-hole hollow conductor，Including copper ingot melting operation、Extrusion process and chain draw operation，The extrusion die that described extrusion process uses is combination bridge-type mould，Combination bridge-type mould refers to，Described combination bridge-type mould includes extruding die body and extrusion die bridge，Described extruding die body has the pass that the appearance profile with two-hole hollow conductor matches，Described extrusion die bridge is flat structure and has the leg installed with extruding die body combination and be located at extruded portion in the middle of leg，Described extruded portion have with extruding die body pass match constitute two-hole hollow conductor cross sectional shape die cavity，Charging pressure remaining part is also had outside described extruded portion，The upper surface of described extrusion die bridge is cambered surface，In use，Increase traction machine and by formula tank，Traction machine is used for the two-hole hollow conductor of drought，Include tank by formula tank and be located at the water inlet shower of tank front end，In use two-hole hollow conductor by time two-hole hollow conductor ride upon and pass through on tank，Wherein，In extrusion process, extrusion ratio is more than 40，The copper ingot temperature of extruding is 920～940 DEG C.
After using such scheme, extrusion process of the present invention is that extrusion axis promotes dummy block, acts on the copper ingot of 900 DEG C, makes copper ingot pass through extrusion die.When copper ingot is split into two parts through extrusion die bridge, copper, these two parts enter extruding die body by charging pressure remaining part subsequently, weld together again, then by mould, be the formation of required shape under the effect of extruding force；Extrude complete, it is remaining to there is pressure in material pressure remaining part, and it is that cambered surface top end starts fracture in the upper surface of extrusion die bridge, seam intracavity has the complete clout of seam and is connected more than pressure, under the traction action of traction machine, in die cavity, tractive is out by remaining for pressure, thus successfully solve product and separate difficult problem more than pressure, additionally, the two-hole hollow conductor squeezed out is pulled into by formula tank by traction machine, after the head of product passes tank, water would not be had again to enter the endoporus of product, this ensures that there copper temperature in mould, ensure that seam effect, by in formula tank, two-hole hollow conductor is suspended in the water in tank, liquid level difference is utilized to ensure to immerse in tank two-hole hollow conductor.
Wherein, a length of 3～5 meters of described tank.
As preferably, a length of 4 meters of described tank.
The two-hole hollow conductor prepared according to aforesaid method, hollow core conductor is copper with diplopore and be made into integration.
As preferably, described hollow core conductor profile is the one in square, kidney-shaped, circle.
As preferably, described hollow core conductor endoporus is the one in square, kidney-shaped, circle.
Accompanying drawing explanation
Accompanying drawing 1 is the extruding die body structural representation of the present invention；
Accompanying drawing 2 is the top view of Fig. 1；
Accompanying drawing 3 is the extrusion die bridge construction schematic diagram of the present invention；
Accompanying drawing 4 is the upward view of Fig. 3；
Accompanying drawing 5 is the left view of Fig. 3；
Accompanying drawing 6 is bridge-type set of molds assembling structure schematic diagram of the present invention；
Accompanying drawing 7 is that the present invention prepares two-hole hollow conductor device therefor overall structure schematic diagram；
Accompanying drawing 8 is the two-hole hollow conductor cross-sectional structure schematic diagram that the present invention prepares gained.
Shown in figure:
1, extruding die body, 1.1, pass, 2, extrusion die bridge, 2.1, leg, 2.2, extruded portion, 2.2.1, die cavity, 2.2.2, charging pressure remaining part, 2.2.3, cambered surface, 3, traction machine, 4, by formula 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.
Detailed description of the invention
The two-hole hollow conductor of 1 couple of present invention and the detailed description of the invention of manufacture method thereof are described in detail below below in conjunction with the accompanying drawings, it should be appreciated that following embodiment is to preferred embodiment, not as limitation of the present invention.
nullIt it is the combination bridge-type mould structure schematic diagram used in the present embodiment as shown in accompanying drawing 1 to Fig. 6，Described combination bridge-type mould includes extruding die body 1 and extrusion die bridge 2，Described extruding die body 1 has the pass 1.1 that the appearance profile with two-hole hollow conductor matches，Described extrusion die bridge 2 is flat structure and has the leg 2.1 installed with extruding die body combination and be located at extruded portion 2.2 in the middle of leg，Described extruded portion 2.2 have with extruding die body pass match constitute two-hole hollow conductor cross sectional shape die cavity 2.2.1，Charging pressure remaining part 2.2.2 is also had outside described extruded portion 2.2，The upper surface of described extrusion die bridge 2 is cambered surface 2.2.3，In use，As shown in Figure 7，Combination bridge-type mould is passed through 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，Copper ingot 7 is extruded by extrusion axis 5 by dummy block 6，Copper ingot 7 is split at extrusion die bridge under pressure in two parts have respectively entered die cavity 2.2.1 and forms two-hole hollow conductor，The two-hole hollow conductor squeezed out is cooled down by formula tank by described under the traction of the traction arm of traction machine 3，After the head of product passes tank，Water would not be had again to enter the endoporus of product，This ensures that there copper temperature in mould，Ensure that seam effect，After a copper ingot will extrude，Copper ingot 7 residue pressure is remaining forms fracture in the upper end surface of extrusion die bridge 2，Split into two parts and entered die cavity 2.2.1 by feeding pressure remaining part 2.2.2，Pulled out by traction machine 3 more than residue pressure，The most successfully solve product and separate difficult problem more than pressure.In the present embodiment, guarantee Weld strength, extrusion ratio is 50, copper ingot heating-up temperature 920～940 DEG C, a length of 4 meters by the tank of formula tank.
As shown in Figure 8, the two-hole hollow conductor of the extruded production of the present invention, described hollow core conductor is copper with diplopore and be made into integration, and the profile of described two-hole hollow conductor is that square, endoporus is also for square.
Embodiments above is to combine accompanying drawing 1 to be described the optimal detailed description of the invention of the present invention, but these explanations can not be considered as limiting the scope of the present invention, it is obvious that under the design of the present invention, still can make a lot of change.Illustrating at this, any any change made under the inventive concept of the present invention falls within protection scope of the present invention.
Claims (2)
- null1. the manufacture method of a two-hole hollow conductor，Including copper ingot melting operation、Extrusion process and chain draw operation，It is characterized in that: the extrusion die that described extrusion process uses is combination bridge-type mould，Combination bridge-type mould refers to，Described combination bridge-type mould includes extruding die body (1) and extrusion die bridge (2)，Described extruding die body (1) has the pass (1.1) that the appearance profile with two-hole hollow conductor matches，Described extrusion die bridge (2) is flat structure and has the leg (2.1) installed with extruding die body combination and be located at extruded portion (2.2) in the middle of leg，Described extruded portion (2.2) have with extruding die body pass match constitute two-hole hollow conductor cross sectional shape die cavity (2.2.1)，Described outside, extruded portion (2.2) also has charging pressure remaining part (2.2.2)，The upper surface of described extrusion die bridge (2) is cambered surface (2.2.3)，In use，Increase traction machine (3) and by formula tank (4)，Traction machine (3) is used for the two-hole hollow conductor of drought，Include tank (4.1) by formula tank (4) and be located at the water inlet shower (4.2) of tank front end，In use two-hole hollow conductor by time two-hole hollow conductor ride upon and pass through on tank，Wherein，In extrusion process, extrusion ratio is more than 40，The copper ingot temperature of extruding is 920～940 DEG C；Described hollow core conductor is copper with diplopore and be made into integration；Described hollow core conductor profile is the one in square, kidney-shaped, circle；Described hollow core conductor endoporus is the one in square, kidney-shaped, circle；A length of 3～5 meters of described tank.
- The manufacture method of two-hole hollow conductor the most according to claim 1, it is characterised in that: a length of 4 meters of described tank.
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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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| 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 CN103559959A (en) | 2014-02-05 |
| CN103559959B true 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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| CN103559959A (en) | 2014-02-05 |
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