CN203556636U - Aluminium-silicon alloy rolling system - Google Patents
Aluminium-silicon alloy rolling system Download PDFInfo
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- CN203556636U CN203556636U CN201320264369.4U CN201320264369U CN203556636U CN 203556636 U CN203556636 U CN 203556636U CN 201320264369 U CN201320264369 U CN 201320264369U CN 203556636 U CN203556636 U CN 203556636U
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Abstract
The utility model discloses an aluminium-silicon alloy rolling system. Aluminium-silicon alloy consists of thick and big plate-shaped silicon crystal grains and an aluminum substrate. Complex plastic deformation happens in a hot rolling process during ingot casting. Because the silicon crystal grains play a role in cutting the aluminum substrate apart, a crack phenomenon happens to edges of a strip. Through further processing, a defect of cracks is generated on the strip, thereby limiting the development of the aluminium-silicon alloy. The system provided by the utility model comprises a rolling sub-system A (6) which consists of a heating furnace 1, a conveying belt 2, and a rolling mill 4. The heating furnace is connected with a roller 3 of the rolling mill 4 through the conveying belt 2. The system provided by the utility model is used for the rolling of the aluminium-silicon alloy.
Description
technical field:
the utility model relates to a kind of alusil alloy rolling system.
background technology:
4004 alusil alloy physical property excellences, have good heat conductivility, and its hot rolling technology has that operation is few, output is large, efficiency advantages of higher, is widely used in the production of band, foil, fin.4004 alusil alloys are comprised of silicon crystal grain and the aluminum substrate of thick en plaque, there is complicated plastic deformation in course of hot rolling ingot casting, due to the isolate effect of silicon crystal grain to aluminum substrate, cause strip limit portion to occur seminess, through further processing, strip produces raw edges defect, has limited the development of alusil alloy.
more non-ferrous metal rolling technique adopts and holds yielding aluminium and aluminium alloy at present, and 4004 higher alusil alloy rolling techniques of intensity have much room for improvement, and rolling mill practice is left to be desired.Select excellent rolling technological parameter, after rolling, the aluminum substrate of 4004 alusil alloys is elongated, and silicon crystal grain becomes tiny spherical particle, and crystallite dimension obviously reduces, and tissue obtains refinement.Can effectively reduce the raw edges defect that strip produces after rolling.Therefore,, when carrying out 4004 alusil alloy hot rolling, the control of Technological Parameters of Rolling Process is particularly crucial.
utility model content:
the purpose of this utility model is to provide a kind of alusil alloy rolling system.
above-mentioned object realizes by following technical scheme:
a kind of alusil alloy rolling system, its composition comprises: sub-rolling system A, described sub-rolling system A is comprised of heating furnace, conveyer belt, milling train, and described heating furnace is connected with the roll of described milling train by described conveyer belt.
described alusil alloy rolling system, described sub-rolling system A is connected with sub-rolling system B by conveyer belt, described sub-rolling system B is connected with sub-rolling system C by conveyer belt, described sub-rolling system C is connected with sub-rolling system D by conveyer belt, and described sub-rolling system D is connected with sub-rolling system E by conveyer belt.
beneficial effect:
1. the utility model effectively reduces the raw edges defect that strip produces after rolling, after raising rolling, the tensile strength of strip reaches 192～212MPa, after raising rolling, the percentage elongation of strip reaches 5.3～5.5%, improve finished material rate, make material structure generation dynamic recrystallization, crystallite dimension reduces, refinement Fine Texture of Material, after rolling, rolled piece produces raw edges apart from being 0mm, dynamic recrystallization percentage occurs and reach more than 50%, and silicon crystal grain size is less than 10 μ m.
the utility model reduces manufacturing procedure, enhance productivity, for 4004 alusil alloy effect of rolling, study, consider the kinds of processes parameters such as mill speed, rolling temperature, volume under pressure on rolling after the impact of strip tissue and mechanical property, by tissue and mechanical properties test analysis, adopt method of analysis of variance, obtain a kind of 4004 alusil alloy milling methods, effectively solved material structure and mechanical property control problem after this alloy rolling.The method not only has high accuracy on operation of rolling parameter is determined, and has working process parameter optimizational function.
during work, first heating furnace is carried out to preheating, then will grow, wide, the high 4004 Al-Si alloy ingots rolled pieces for 200mm × 100mm × 18mm are vertically placed in heating furnace, described rolled piece is heated to 340 ℃, and be incubated 30 minutes, then described rolled piece is pushed into the roll place of two rod milling trains, described rolled piece is contacted with roll, by ultraviolet heating instrument breaker roll, heat and be incubated, make roll maintain the temperature at 310 ℃, roll divides 5 passages to be rolled described rolled piece with 20m/s speed, rolled piece thickness after sub-rolling system A rolling is 16.2mm, volume under pressure is 10%, rolled piece thickness after sub-rolling system B rolling is 12.9mm, volume under pressure is 20%, rolled piece thickness after sub-rolling system C rolling is 10.4mm, and volume under pressure is 20%, rolled piece thickness after sub-rolling system D rolling is 8.3mm, and volume under pressure is 20%, rolled piece thickness after sub-rolling system E rolling is 7.5mm, volume under pressure is 10%, between passage, rolled piece is all heated to 340 ℃, and after 5 passage rollings, the total volume under pressure of rolled piece reaches 58.3%, rolled piece Slow cooling after rolling, carries out cooling control with 0.4-0.6 ℃/s speed.
accompanying drawing explanation:
accompanying drawing 1 is the structural representation of sub-rolling system A.In figure, 1 is heating furnace, and 2 is conveyer belt, and 3 is roll, and 4 is milling train, and 5 is rolled piece.
accompanying drawing 2 is structured flowcharts of the present utility model.In figure, 6 is sub-rolling system A, and 7 is sub-rolling system B, and 8 is sub-rolling system C, and 9 is sub-rolling system D, and 10 is sub-rolling system E.
the specific embodiment:
embodiment 1:
a kind of alusil alloy rolling system, its composition comprises: sub-rolling system A6, described sub-rolling system A is comprised of heating furnace 1, conveyer belt 2, milling train 4, and described heating furnace is connected with the roll 3 of described milling train by described conveyer belt.
embodiment 2:
according to the alusil alloy rolling system described in embodiment 1, described sub-rolling system A is connected with sub-rolling system B7 by conveyer belt, described sub-rolling system B is connected with sub-rolling system C8 by conveyer belt, described sub-rolling system C is connected with sub-rolling system D9 by conveyer belt, and described sub-rolling system D is connected with sub-rolling system E10 by conveyer belt.
embodiment 3:
according to the alusil alloy rolling system described in embodiment 1 or 2, material provided by the utility model is 4004 alusil alloys after refining treatment, except element silicon, also contain the elements such as iron, copper and inevitable impurity element, its chemical Composition Control is as table 1.
table 1 4004 alusil alloy chemical component tables (mass percent %)
milling method design philosophy is: select temperature higher than material generation dynamic recrystallization temperature, rolled piece generation dynamic recrystallization percentage is reached more than 50%.Rolling temperature should not exceed the burning temperature of material, 470 ℃.Reduce operation of rolling variations in temperature, make rolling stable carrying out more.After volume under pressure selects to keep rolling, material does not produce raw edges phenomenon, and silicon crystal grain is cracked, and aluminum metal is elongated dispersion.
embodiment 4:
according to the alusil alloy rolling system described in embodiment 1 or 2, strip after rolling is carried out to Mechanics Performance Testing, tensile strength scope: 192～212MPa, percentage elongation scope: 5.3～5.5%, after rolling, rolled piece generation raw edges distance is 0mm.Strip after rolling is carried out to microstructure detection, and it is organized as tiny soccer star's particle, dynamic recrystallization percentage occurs and reach more than 50%, and silicon crystal grain size is less than 10 μ m, and aluminum metal base material is dispersed elongation.Roll rear strip mechanical property and tissue morphology and meet the requirement of 4004 alusil alloys in relevant criterion.In the operation of rolling, rolled piece variations in temperature is little, and the operation of rolling is more stable.After rolling, strip mechanical property improves, and microstructure refinement, meets industrial production demand.
adopt said method to be rolled 4004 alusil alloys, from raw edges distance and the analysis and research of mechanical property aspect, the new milling method of acquisition and former scheme processing effect are to such as table 3.
the different milling method results of table 3 4004 alusil alloys and technique contrast
can find out that technique 3,5,6 all produces raw edges defect, in industrial production, will carry out trimming to strip after rolling, increase manufacturing procedure, improve production cost.After process modification becomes 2,4,7, after rolling, strip does not produce raw edges defect, and technique 4 is improved to after technique 7, and rolling efficiency has improved 100%, and technique 2 is compared with technique 7, and tensile strength has improved 5.3%, and energy resource consumption has reduced 13.3%.Technique 1 is compared with technique 2, and tensile strength has improved 5%, and percentage elongation has improved 7.4%, and raw edges phenomenon does not appear in the strip after technique 1 processing, and tensile strength, percentage elongation are all significantly improved.After rolling, crystallite dimension obviously reduces, and silicon crystal grain size is all less than 10 μ m, and recrystallization percentage is more than 50%.
Claims (1)
1. an alusil alloy rolling system, its composition comprises: sub-rolling system A, is characterized in that: described sub-rolling system A is comprised of heating furnace, conveyer belt, milling train, described heating furnace is connected with the roll of described milling train by described conveyer belt; Described sub-rolling system A is connected with sub-rolling system B by conveyer belt, described sub-rolling system B is connected with sub-rolling system C by conveyer belt, described sub-rolling system C is connected with sub-rolling system D by conveyer belt, and described sub-rolling system D is connected with sub-rolling system E by conveyer belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320264369.4U CN203556636U (en) | 2013-05-16 | 2013-05-16 | Aluminium-silicon alloy rolling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320264369.4U CN203556636U (en) | 2013-05-16 | 2013-05-16 | Aluminium-silicon alloy rolling system |
Publications (1)
| Publication Number | Publication Date |
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| CN203556636U true CN203556636U (en) | 2014-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320264369.4U Expired - Fee Related CN203556636U (en) | 2013-05-16 | 2013-05-16 | Aluminium-silicon alloy rolling system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103240273A (en) * | 2013-05-16 | 2013-08-14 | 哈尔滨理工大学 | Aluminum silicon alloy rolling system and method |
| CN109894474A (en) * | 2017-12-07 | 2019-06-18 | 天工爱和特钢有限公司 | A kind of hot-rolling arrangement of processing mold steel |
-
2013
- 2013-05-16 CN CN201320264369.4U patent/CN203556636U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103240273A (en) * | 2013-05-16 | 2013-08-14 | 哈尔滨理工大学 | Aluminum silicon alloy rolling system and method |
| CN103240273B (en) * | 2013-05-16 | 2016-08-03 | 哈尔滨理工大学 | Alusil alloy rolling system and milling method |
| CN109894474A (en) * | 2017-12-07 | 2019-06-18 | 天工爱和特钢有限公司 | A kind of hot-rolling arrangement of processing mold steel |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140423 Termination date: 20160516 |
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| CF01 | Termination of patent right due to non-payment of annual fee |