CN101829768B - Discontinuous water-cooling control system for aluminum alloy casting - Google Patents
Discontinuous water-cooling control system for aluminum alloy casting Download PDFInfo
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- CN101829768B CN101829768B CN2010101932359A CN201010193235A CN101829768B CN 101829768 B CN101829768 B CN 101829768B CN 2010101932359 A CN2010101932359 A CN 2010101932359A CN 201010193235 A CN201010193235 A CN 201010193235A CN 101829768 B CN101829768 B CN 101829768B
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Abstract
The invention relates to a discontinuous water-cooling control system for aluminum alloy casting, which comprises a pneumatic three-way valve, a film cylinder, an electromagnetic valve and a pneumatic combined triplet, wherein the input end of the pneumatic three-way valve is connected to a main water supply pipeline, one output end of the pneumatic three-way valve is connected with a crystallizer water inlet pipeline, and the other output end of the pneumatic three-way valve is connected with a drainage pipeline; and the air inlet end of the pneumatic three-way valve is connected with the output end of the film cylinder, the input end of the film cylinder is connected with the outlet of the electromagnetic valve by a connection air pipe, and the inlet of the electromagnetic valve is connected with the pneumatic combined triplet. The water-cooling control system well realizes the discontinuous water supply of the crystallizer, and the water supply mode effectively slows the cooling of the cast ingot to inhibit warping in the initial casting stage; and the pneumatic three-way valve is set to the normally closed position to realize the continuous supply of crystallizer cooling water, thereby meeting the cooling water requirements for continuous water supply in steady casting stage and improving the warping of the aluminum alloy semi-continuous casting ingot.
Description
Technical field
The present invention relates to a kind of discontinuous water-cooling control system for aluminum alloy casting, belong to the aluminum alloy semi-continuous casting technical field.
Background technology
Aluminum alloy semi-continuous casting is that the aluminium processing industry is produced extruding with billet and rolling main means with the plate ingot; Adopt continuous cooling water to spray cooling in the semi-continuous casting process around the ingot casting, cause existing on the ingot casting cross section very large thermograde, there is a liquid cave in the ingot casting vertical section; The tension that ingot solidification shrinks produces an ingot casting axial component; Casting incipient stage shaping ingot casting non-deformability is relatively poor, causes the bottom of ingot casting to form arch, and this phenomenon is called as warpage.
Warpage forms has destruction to scull, and scull breaks and will produce the leakage current phenomenon.For duralumin/extra super duralumin alloy, because the ability of ingot casting crack is very low in the process of setting, the phenomenon of ingot casting cracking usually takes place in the casting incipient stage.Proposed a kind of discontinuous water-cooling system to this situation, periodically supplying water in the casting incipient stage reduces the temperature contrast on the ingot casting cross section, reduces the tension of solidification shrinkage on axially, thereby improves the ingot casting warpage.
This discontinuous water-cooling system has increased a triple valve on the basis of conventional water-cooling system; Switch control draining and water supply through triple valve; For reaching the good ingot casting warpage effect of improving; Require the triple valve switching frequency very high, the minimum period reaches 1～2s, and this has proposed very high requirement to the threeway valve control system.
Summary of the invention
The objective of the invention is to overcome the deficiency that prior art exists, a kind of discontinuous water-cooling control system for aluminum alloy casting is provided, can realize preferably that the discontinuous formula of crystallizer supplies water, improve the warpage of aluminum alloy semi-continuous casting ingot casting.
The object of the invention is realized through following technical scheme:
Discontinuous water-cooling control system for aluminum alloy casting; Characteristics are: comprise Pneumatic three-way valve, diaphragm cylinder, magnetic valve and pneumatic triple piece; The input of said Pneumatic three-way valve is linked into the water main road; The output of Pneumatic three-way valve connects the crystallizer inlet channel, and another output of Pneumatic three-way valve connects drainage pipeline; The inlet end of said Pneumatic three-way valve links to each other with the output of diaphragm cylinder, and the input of diaphragm cylinder links to each other with the outlet of magnetic valve through connecting tracheae, and the import of magnetic valve connects pneumatic triple piece.
Further, above-mentioned discontinuous water-cooling control system for aluminum alloy casting wherein, is equipped with rapid escape valve on the said diaphragm cylinder.
Further, above-mentioned discontinuous water-cooling control system for aluminum alloy casting, wherein, the holding wire of said magnetic valve links to each other with PLC.
Substantive distinguishing features and obvious improvement that technical scheme of the present invention is outstanding are mainly reflected in:
Water-cooling control system of the present invention realizes that better the discontinuous formula of crystallizer supplies water, and " triple valve " of the continuous/discontinuous water supply of control cooling water is a Pneumatic three-way valve, and the switch of Pneumatic three-way valve is controlled by a diaphragm cylinder, has the fast advantage of response; Diaphragm cylinder has been installed 2 rapid escape valves, but the gas in the moment emptying cylinder is convenient to Pneumatic three-way spool moment return; The air inlet of diaphragm cylinder/exhaust is controlled by solenoid control, through the PLC program setting by-pass cock cycle, and then the switch periods of regulating Pneumatic three-way valve; The switch periods of Pneumatic three-way valve is adjustable, and the cycle lower limit reaches 1～2s, realizes the supply of crystallizer cooling water pulsed, and in the casting incipient stage, this way of supplying water slows down the ingot casting cooling effectively, suppresses warpage; Through the normally closed realization crystallizer of Pneumatic three-way valve continuous cooling water is supplied with, the continuous cooling water formula that satisfies the casting stabilization sub stage supplies water, and has improved the warpage of aluminum alloy semi-continuous casting ingot casting.
Description of drawings
Below in conjunction with accompanying drawing technical scheme of the present invention is described further:
Fig. 1: the principle schematic of discontinuous water-cooling control system for aluminum alloy casting of the present invention.
The implication of each Reference numeral sees the following form among the figure:
| Reference numeral | Implication | Reference numeral | Implication | | Implication | |
| 1 | The water main road | 2 | The |
3 | |
|
| 4 | Pneumatic three-way valve | 5 | |
6 | Rapid escape valve | |
| 7 | |
8 | |
9 | Pneumatic |
|
| 10 | PLC |
The specific embodiment
As shown in Figure 1; Discontinuous water-cooling control system for aluminum alloy casting; Comprise water main road 1, crystallizer inlet channel 2, Pneumatic three-way valve 4, diaphragm cylinder 5, magnetic valve 8 and pneumatic triple piece 9; The input of Pneumatic three-way valve 4 is linked into water main road 1, and the output of Pneumatic three-way valve 4 connects crystallizer inlet channel 2, and another output of Pneumatic three-way valve 4 connects drainage pipeline 3; The inlet end of Pneumatic three-way valve 4 links to each other with the output of diaphragm cylinder 5; On the diaphragm cylinder 5 rapid escape valve is installed; The input of diaphragm cylinder 5 links to each other with the outlet of magnetic valve 8 through connecting tracheae 7, and the import of magnetic valve 8 connects pneumatic triple piece 9, and the holding wire of magnetic valve 8 links to each other with PLC 10.
Pneumatic three-way valve 4 is installed on water main road 1; Periodic switch control through Pneumatic three-way valve 4; Close Pneumatic three-way valve 4 specifically cooling water is introduced crystallizer inlet channel 2; Perhaps open Pneumatic three-way valve 4 cooling water is introduced drainage pipeline 3 dischargings, reach the discontinuous formula water supply effect of crystallizer, the ON/OFF action of this Pneumatic three-way valve 4 is by diaphragm cylinder 5 air inlets/exhaust control; Air inlet/the exhaust of diaphragm cylinder 5 is controlled through PLC 10 program setting switch periods by magnetic valve 8; For the moment exhaust capacity that increases diaphragm cylinder 5 is provided with 2 rapid escape valves 6 on diaphragm cylinder, pneumatic control component connects tracheae by multistage and connects, and at the air inlet port 9 pairs of air inlets of pneumatic triple piece is installed and filters.
During concrete the application, the crystallizer inlet channel 2 with water system before the beginning semi-continuous casting is connected on the crystallizer, according to the given suitable water supply flow/pressure of aluminum alloy casting technique; Select suitable admission pressure for use according to diaphragm cylinder 5, rapid escape valve 6, connection tracheae 7, magnetic valve 8 and pneumatic triple piece 9 device parameters; Set the PLC program in control switching cycle according to aluminum alloy casting technique.Open the PLC gauge tap during casting beginning, the switching of PLC programme-control magnetic valve 8, the switching of magnetic valve 8 driven for opening and closing Pneumatic three-way valves 4 realizes the discontinuous formula cooling water supply of semi-continuous casting, improves the warpage of ingot casting.Along with casting enters into the stabilization sub stage, close the PLC gauge tap, magnetic valve 8 cuts out, and Pneumatic three-way valve 4 remains on normally off, realizes the supply of continous way cooling water, i.e. routine casting.
In sum; Water-cooling control system of the present invention realizes that better the discontinuous formula of crystallizer supplies water; " triple valve " of the continuous/discontinuous water supply of control cooling water is a Pneumatic three-way valve, and the switch of Pneumatic three-way valve is controlled by a diaphragm cylinder, has the fast advantage of response; Diaphragm cylinder has been installed 2 rapid escape valves, but the gas in the moment emptying cylinder is convenient to Pneumatic three-way spool moment return; The air inlet of diaphragm cylinder/exhaust is controlled by solenoid control, through the PLC program setting by-pass cock cycle, and then the switch periods of regulating Pneumatic three-way valve; The switch periods of Pneumatic three-way valve is adjustable, and the cycle lower limit reaches 1～2s, realizes the supply of crystallizer cooling water pulsed, and in the casting incipient stage, this way of supplying water slows down the ingot casting cooling effectively, suppresses warpage; Through the normally closed realization crystallizer of Pneumatic three-way valve continuous cooling water is supplied with, the continuous cooling water formula that satisfies the casting stabilization sub stage supplies water, and has improved the warpage of aluminum alloy semi-continuous casting ingot casting.
What need understand is: the above only is a preferred implementation of the present invention; For those skilled in the art; Under the prerequisite that does not break away from the principle of the invention, can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (3)
1. discontinuous water-cooling control system for aluminum alloy casting; It is characterized in that: comprise Pneumatic three-way valve, diaphragm cylinder, magnetic valve and pneumatic triple piece; The input of said Pneumatic three-way valve is linked into the water main road; The output of Pneumatic three-way valve connects the crystallizer inlet channel, and another output of Pneumatic three-way valve connects drainage pipeline; The inlet end of said Pneumatic three-way valve links to each other with the output of diaphragm cylinder, and the input of diaphragm cylinder links to each other with the outlet of magnetic valve through connecting tracheae, and the import of magnetic valve connects pneumatic triple piece.
2. discontinuous water-cooling control system for aluminum alloy casting according to claim 1 is characterized in that: on the said diaphragm cylinder rapid escape valve is installed.
3. discontinuous water-cooling control system for aluminum alloy casting according to claim 1 is characterized in that: the holding wire of said magnetic valve links to each other with PLC.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101932359A CN101829768B (en) | 2010-06-07 | 2010-06-07 | Discontinuous water-cooling control system for aluminum alloy casting |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101932359A CN101829768B (en) | 2010-06-07 | 2010-06-07 | Discontinuous water-cooling control system for aluminum alloy casting |
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| CN101829768A CN101829768A (en) | 2010-09-15 |
| CN101829768B true CN101829768B (en) | 2012-03-28 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588603A (en) * | 2012-03-20 | 2012-07-18 | 机械工业第三设计研究院 | Active prevention method and system for transmission part |
| CN104368773B (en) * | 2014-12-05 | 2017-01-04 | 西南铝业（集团）有限责任公司 | Hard aluminium alloy casting crystallizer and pulsating water pipeline thereof |
| CN105328146A (en) * | 2015-12-15 | 2016-02-17 | 西南铝业（集团）有限责任公司 | Alloy casting cooling water system |
| CN109434057A (en) * | 2018-12-27 | 2019-03-08 | 西南铝业（集团）有限责任公司 | A kind of high-accuracy cast system |
Citations (6)
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|---|---|---|---|---|
| US3441079A (en) * | 1966-10-24 | 1969-04-29 | Aluminium Lab Ltd | Casting of aluminum ingots |
| US3759309A (en) * | 1971-05-27 | 1973-09-18 | Reynolds Metals Co | Method of and apparatus for cooling continuously cast metal |
| CN2578797Y (en) * | 2002-10-23 | 2003-10-08 | 沈阳黎明航空发动机(集团)有限责任公司 | Device for testing water flow volume of turbine blade |
| CN100372632C (en) * | 2006-05-19 | 2008-03-05 | 苏州有色金属加工研究院 | Continuous lubricating system for semi-continuous casting of aluminium and aluminium alloy |
| CN101502852A (en) * | 2009-03-12 | 2009-08-12 | 河北文丰钢铁有限公司 | Sweeping and descaling device for rough rolling of band steel with wind and water |
| CN201702341U (en) * | 2010-06-07 | 2011-01-12 | 苏州有色金属研究院有限公司 | Non-continuous water-cooling control system for aluminum alloy casting |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59220265A (en) * | 1983-05-30 | 1984-12-11 | Kobe Steel Ltd | Pressure control device for mold cooling water and coil cooling water of electromagnetic stirrer in casting mold for continuous casting machine |
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2010
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3441079A (en) * | 1966-10-24 | 1969-04-29 | Aluminium Lab Ltd | Casting of aluminum ingots |
| US3759309A (en) * | 1971-05-27 | 1973-09-18 | Reynolds Metals Co | Method of and apparatus for cooling continuously cast metal |
| CN2578797Y (en) * | 2002-10-23 | 2003-10-08 | 沈阳黎明航空发动机(集团)有限责任公司 | Device for testing water flow volume of turbine blade |
| CN100372632C (en) * | 2006-05-19 | 2008-03-05 | 苏州有色金属加工研究院 | Continuous lubricating system for semi-continuous casting of aluminium and aluminium alloy |
| CN101502852A (en) * | 2009-03-12 | 2009-08-12 | 河北文丰钢铁有限公司 | Sweeping and descaling device for rough rolling of band steel with wind and water |
| CN201702341U (en) * | 2010-06-07 | 2011-01-12 | 苏州有色金属研究院有限公司 | Non-continuous water-cooling control system for aluminum alloy casting |
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| 叶小刚等.《铝合金直接水冷半连续铸造控制系统设计及冷却水量自动控制仿真》.《中国铸造装备与技术》.2008,47-51. * |
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Effective date of registration: 20171121 Address after: 102209 Changping District City, Beiqijia, the future of science and technology in the south area of the town of Beijing Patentee after: China Aluminum Material Applied Research Institute Co Ltd Address before: Suzhou City, Jiangsu province 215021 Industrial Park No. 200 Shen Hu Road Patentee before: Suzhou Non-ferrous Metal academy Co., Ltd. |