CN103643181A - Online forced-cooling and quenching device of aluminum alloy extrusion material - Google Patents
Online forced-cooling and quenching device of aluminum alloy extrusion material Download PDFInfo
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- CN103643181A CN103643181A CN201310628559.4A CN201310628559A CN103643181A CN 103643181 A CN103643181 A CN 103643181A CN 201310628559 A CN201310628559 A CN 201310628559A CN 103643181 A CN103643181 A CN 103643181A
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Abstract
The invention discloses an online forced-cooling and quenching device of an aluminum alloy extrusion material. The online forced-cooling and quenching device comprises an extrusion die and a die cushion, wherein the extrusion die and the die cushion are mutually connected; a discharge hole of the extrusion die is butted with a discharge channel of the die cushion; a straight slot is arranged at one side of the die cushion contacting the extrusion die around the discharge channel; a nitrogen pipeline is arranged in the straight slot; the nitrogen pipeline is connected with an external nitrogen device through a nitrogen delivery pipe passing through the die cushion; a plurality of vent holes are formed on the nitrogen pipeline. The online forced-cooling and quenching device has the beneficial effects that aluminum profile is timely subjected to high-pressure quenching and forced-cooling by low-temperature nitrogen after being extruded from the discharge hole, so that the mechanical property can be ensured, secondary crystallization is avoided, the surface quality can meet the requirements, and online integrated high-efficient production of extruding and quenching technologies can be achieved, the defects of the aluminum profile in the aspects such as size, shape, tissue, performance and the like caused by overlarge metal temperature fluctuations in the hot extrusion process are solved, and the technical requirements of high-performance aluminum profile on the extruding and quenching technologies are met.
Description
Technical field
The present invention relates to the production unit of aluminium alloy extruded material, relate in particular to the online strong cold quenching device of a kind of aluminium alloy extruded material.
Background technology
Aluminium alloy extruded material (aluminium section bar) obtains increasingly extensive application in fields such as building, air traffic, electronic information, but these fields are more and more harsher to the surface quality of aluminium section bar, the strength of materials, morpheme and dimension precision requirement, traditional aluminium extrusion press quenching mode (quenching tank or gas-mist cooling device that aluminium section bar moves on to outside 2～3 meters from extrusion machine is extruded carry out quench cooled) has been difficult to reach requirement, cannot stably produce high-quality product.Aluminium alloy will inevitably cause because of the transformation of rubbing effect and deformation work the temperature rise of material in extrusion process, especially at the Aluminum-Extruding Die complex structure, load is large, during very fast the or extruding high strength alumin ium alloy of extrusion speed, the mould causing in its extrusion process used for forming and the temperature rise of aluminium alloy extrusions are more obvious, temperature rise amplitude is higher, product is caused to following serious impact: 1, worsen aluminium shape surface quality, in actual production, often find after several ingot castings of extruding, the obvious variation of aluminium shape surface quality, there is the defects such as surface irregularity and road plan, this raises just because of die temperature, cohesive force between die working length and aluminium alloy increase and die working length on cohesive force is unbalanced everywhere causes, these factors cause aluminium alloy with discharge port, to be marked the inhomogeneous cut of a lot of in work, 2, the aluminium alloy extrusions after extrusion molding reaches its recrystallization temperature value in the temperature rise of mould outlet place, secondary crystal easily occurs and make its surface microstructure thick, causes aluminium alloy extrusions intensity significantly to reduce, if 3 is too high in the rising of mould outlet place temperature, aluminium shape surface is prone to burning, severe oxidation, forms the defects such as blackspot, 4, die temperature raises, and also can reduce mould self intensity, causes that die deformation even scraps, and affect die life, increase production cost.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of online strong cold quenching device that can output high-quality Al alloy squeeze wood.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of aluminium alloy extruded material online strong cold quenching device, comprise overflow mould and die-cushion, described overflow mould and die-cushion interconnect, the discharge port of overflow mould docks with the tapping channel of die-cushion, be positioned at the one side contacting with overflow mould on die-cushion and be provided with groove around described tapping channel, in described groove, be provided with nitrogen pipeline, described nitrogen pipeline is connected with outside nitrogen device by a nitrogen transfer lime through die-cushion, and nitrogen pipeline is provided with a plurality of production wells.
Wherein, the end of the work band of the perforate direction of described production well on described overflow mould, the diameter of production well is 1/8th of described nitrogen pipeline internal diameter.
Wherein, described nitrogen device comprises liquid nitrogen holder, liquid nitrogen gasification device and pressurizing device.
Wherein, described nitrogen pipeline adopts stainless steel to make.
The invention has the beneficial effects as follows: aluminium section bar one extrudes immediately from discharge port that with low temperature nitrogen, it to be carried out to high pressure quench cold by force, so both can guarantee its mechanical property, avoid the coarse grains that occurs that secondary crystal causes, also can make its surface quality meet the demands, surface is brighter, and seldom even can not produce blackspot on surface, the defects such as road plan, can realize again extruding produces with the online integrated high-efficiency of quenching technology, solved in hot extrusion process because the excessive aluminium section bar that causes of metal temperature fluctuation is in size, shape, the defect of the aspects such as tissue and performance, meet high-performance aluminum section bar to extruding and the higher technical requirements of quenching technology, in practice, adopt this device can effectively improve aluminium extrusion speed, production efficiency can promote 10% left and right.
Accompanying drawing explanation
Fig. 1 is the structural profile schematic diagram of the online strong cold quenching device of aluminium alloy extruded material of the present invention;
Fig. 2 is the structure schematic top plan view of die-cushion of the present invention.
Main element nomenclature:
10, overflow mould; 11, work band; 12, discharge port;
20, die-cushion; 21, tapping channel; 22, groove;
30, nitrogen pipeline; 31, nitrogen transfer lime; 32, nitrogen device; 33, production well;
40, aluminium section bar.
Embodiment
By describing technology contents of the present invention, structural attitude in detail, being realized object and effect, below in conjunction with embodiment and coordinate accompanying drawing to be explained in detail.
Refer to Fig. 1 and Fig. 2, present embodiment is the online strong cold quenching device of a kind of aluminium alloy extruded material, comprise overflow mould 10 and die-cushion 20, overflow mould 10 and die-cushion 20 interconnect, overflow mould 10 comprises work band 11 and discharge port 12, its discharge port 12 docks with the tapping channel 21 of die-cushion 20, be positioned at the one side contacting with overflow mould 10 on die-cushion 20 and be provided with groove 22 around tapping channel 21, in groove 22, be provided with nitrogen pipeline 30, nitrogen pipeline 30 is connected with outside nitrogen device 32 by a nitrogen transfer lime 31 through die-cushion 20, nitrogen pipeline 30 is provided with a plurality of production wells 33, the work of the perforate direction of production well 33 on overflow mould 10 is with 11 end, this makes just can to completing aluminium section bar 40 and the overflow mould 10 of extruding, carry out cooling from the nitrogen of production well 33 ejections simultaneously.The diameter of general production well 33 is 1/8th of nitrogen pipeline 30 internal diameters, can guarantee that like this nitrogen flow is uniformly distributed in nitrogen pipeline 30.
In actual use, groove 22 and nitrogen pipeline 30 can and be adjusted in response to the shape of tapping channel 21 according to factors such as the section form of aluminium section bar 40, sizes, simultaneously, production well 33 also can be adjusted pore radiuses and distribution density according to above-mentioned factor, guarantee that surface that most of nitrogen can be ejected into work band 11 places and aluminium section bar 40 is to have improved cooling performance, the waste of simultaneously avoiding gas to leak outside bringing.
Wherein, nitrogen device 32 comprises liquid nitrogen holder, liquid nitrogen gasification device and pressurizing device; nitrogen under normal temperature and pressure can be changed into the gas of high pressure low temperature through nitrogen device 32; after being sprayed onto aluminium section bar 40 and work and being with on 11; except playing the effect of cooling (strong cold quenching) fast; nitrogen can also play the effect of protection gas, makes hot aluminium shape surface not by high temperature oxidation, guarantees its surface-brightening zero defect.
Preferably, nitrogen pipeline 30 adopts stainless steel to make.Because the general H13 of the employing steel of die-cushion 20 is done, the good welding performance between stainless steel and H13 steel, this makes the connection of nitrogen pipeline 30 and die-cushion 20 more firm.
The invention has the beneficial effects as follows: aluminium section bar one extrudes immediately from discharge port that with low temperature nitrogen, it to be carried out to high pressure quench cold by force, so both can guarantee its mechanical property, avoid the coarse grains that occurs that secondary crystal causes, also can make its surface quality meet the demands, surface is brighter, and seldom even can not produce blackspot on surface, the defects such as road plan, can realize again extruding produces with the online integrated high-efficiency of quenching technology, solved in hot extrusion process because the excessive aluminium section bar that causes of metal temperature fluctuation is in size, shape, the defect of the aspects such as tissue and performance, meet high-performance aluminum section bar to extruding and the higher technical requirements of quenching technology, in practice, adopt this device can effectively improve aluminium extrusion speed, production efficiency can promote 10% left and right.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification sheets of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (4)
1. the online strong cold quenching device of an aluminium alloy extruded material, it is characterized in that, comprise overflow mould and die-cushion, described overflow mould and die-cushion interconnect, the discharge port of overflow mould docks with the tapping channel of die-cushion, is positioned at the one side contacting with overflow mould on die-cushion and is provided with groove around described tapping channel, in described groove, is provided with nitrogen pipeline, described nitrogen pipeline is connected with outside nitrogen device by a nitrogen transfer lime through die-cushion, and nitrogen pipeline is provided with a plurality of production wells.
2. the online strong cold quenching device of aluminium alloy extruded material according to claim 1, is characterized in that: the end of the work band of the perforate direction of described production well on described overflow mould, the diameter of production well is 1/8th of described nitrogen pipeline internal diameter.
3. the online strong cold quenching device of aluminium alloy extruded material according to claim 1, is characterized in that: described nitrogen device comprises liquid nitrogen holder, liquid nitrogen gasification device and pressurizing device.
4. the online strong cold quenching device of aluminium alloy extruded material according to claim 1, is characterized in that: described nitrogen pipeline adopts stainless steel to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310628559.4A CN103643181A (en) | 2013-11-29 | 2013-11-29 | Online forced-cooling and quenching device of aluminum alloy extrusion material |
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| CN201310628559.4A CN103643181A (en) | 2013-11-29 | 2013-11-29 | Online forced-cooling and quenching device of aluminum alloy extrusion material |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106011412A (en) * | 2016-07-28 | 2016-10-12 | 太重（天津）滨海重型机械有限公司 | Aluminum profile on-line water hardening device and aluminum profile production line |
| CN107214256A (en) * | 2017-06-14 | 2017-09-29 | 无锡贺邦汽车配件有限公司 | A kind of automobile buffering steel disc cooling device |
| CN108500076A (en) * | 2018-05-22 | 2018-09-07 | 浙江海亮新材料有限公司 | A kind of device and method accurately controlling aluminium section hot-extrusion die local temperature |
| CN109158437A (en) * | 2018-09-29 | 2019-01-08 | 广东和胜新能源汽车配件有限公司 | A kind of press quenching device based on reverse extrusion bar |
| CN109158439A (en) * | 2018-09-20 | 2019-01-08 | 福建工程学院 | A kind of extrusion die strong cooling method and device online |
| CN109821914A (en) * | 2019-03-12 | 2019-05-31 | 福建省闽发铝业股份有限公司 | A kind of ultra-thin aluminum alloy profile extrusion technique |
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| JPH02127916A (en) * | 1988-11-04 | 1990-05-16 | Showa Alum Corp | Manufacture of 7000 group al alloy extruded material suppressing surface recrystallization |
| CN1810402A (en) * | 2005-01-25 | 2006-08-02 | 广东兴发集团有限公司 | Fast 7075 aluminium alloy shape extruding process |
| CN102069098A (en) * | 2009-11-24 | 2011-05-25 | 上海瑞斯乐门窗有限公司 | Efficient cooling aluminum profile hot extrusion die structure |
| CN202377295U (en) * | 2011-12-26 | 2012-08-15 | 上海瑞斯乐复合金属材料有限公司 | Device for cooling aluminum profile hot extrusion dies efficiently |
| CN103143586A (en) * | 2013-03-06 | 2013-06-12 | 佛山市三水凤铝铝业有限公司 | Method and device for liquid nitrogen cooling of aluminum profile extrusion die |
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2013
- 2013-11-29 CN CN201310628559.4A patent/CN103643181A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02127916A (en) * | 1988-11-04 | 1990-05-16 | Showa Alum Corp | Manufacture of 7000 group al alloy extruded material suppressing surface recrystallization |
| CN1810402A (en) * | 2005-01-25 | 2006-08-02 | 广东兴发集团有限公司 | Fast 7075 aluminium alloy shape extruding process |
| CN102069098A (en) * | 2009-11-24 | 2011-05-25 | 上海瑞斯乐门窗有限公司 | Efficient cooling aluminum profile hot extrusion die structure |
| CN202377295U (en) * | 2011-12-26 | 2012-08-15 | 上海瑞斯乐复合金属材料有限公司 | Device for cooling aluminum profile hot extrusion dies efficiently |
| CN103143586A (en) * | 2013-03-06 | 2013-06-12 | 佛山市三水凤铝铝业有限公司 | Method and device for liquid nitrogen cooling of aluminum profile extrusion die |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106011412A (en) * | 2016-07-28 | 2016-10-12 | 太重（天津）滨海重型机械有限公司 | Aluminum profile on-line water hardening device and aluminum profile production line |
| CN107214256A (en) * | 2017-06-14 | 2017-09-29 | 无锡贺邦汽车配件有限公司 | A kind of automobile buffering steel disc cooling device |
| CN108500076A (en) * | 2018-05-22 | 2018-09-07 | 浙江海亮新材料有限公司 | A kind of device and method accurately controlling aluminium section hot-extrusion die local temperature |
| CN109158439A (en) * | 2018-09-20 | 2019-01-08 | 福建工程学院 | A kind of extrusion die strong cooling method and device online |
| CN109158437A (en) * | 2018-09-29 | 2019-01-08 | 广东和胜新能源汽车配件有限公司 | A kind of press quenching device based on reverse extrusion bar |
| CN109821914A (en) * | 2019-03-12 | 2019-05-31 | 福建省闽发铝业股份有限公司 | A kind of ultra-thin aluminum alloy profile extrusion technique |
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Application publication date: 20140319 |