CN102009163A - Cast method of ZL101 and ZL116 aluminium alloy investment castings - Google Patents
Cast method of ZL101 and ZL116 aluminium alloy investment castings Download PDFInfo
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Abstract
The invention relates to a cast method of ZL101 and ZL116 aluminium alloy investment castings, comprising the following steps: pre-roasting a molding shell; roasting the molding shell; vacuumizing; heating and melting aluminium alloy blank; pouring; discharging; and carrying out heat treatment. In the invention, the problem of high air content in an aluminium alloy casting with the methods of vacuum melting and vacuum pouring is solved, thus the ZL101 and ZL116 castings and deformed aluminium alloy parts can be favourably welded so as to satisfy casting welding performance requirements and improve casting welding qualification rate.
Description
Technical field
The present invention relates to a kind of aluminium alloy castings casting method, especially ZL101, ZL116 aluminium alloy investment-casting casting method.
Background technology
Regular meeting runs into the situation that aluminium alloy castings and other metals are welded in the time of in engineering; but taking under the common melting situation; can infilter portion gas in the foundry goods; because air content is higher in the meeting aluminium alloy castings; in welding process; aluminium alloy castings one side can produce a large amount of pores, causes that to be welded into power low, and welding performance reduces greatly.
In metallurgical melting technique of modern times,, still, take this measure still to be helpless to the raising of aluminium alloy welding performance for reducing air content is taked usually in the molten metal method mode for protective gas such as applying argon gas in smelting furnace.
Summary of the invention
Infilter the deficiency that gas produces pore easily at generally smelting aluminium alloy, the invention provides a kind of method that can reduce the smelting aluminium alloy of pore generation.
The technical scheme that the present invention takes is as follows:
(1) shell preroast: shell is heated to 980 ± 10 ℃, is incubated 2～3 hours, cooling, washing;
(2) shell roasting: shell is heated to 650 ± 10 ℃, is incubated and cools to 200 ℃～430 ℃ after 1.5～2.5 hours with the furnace;
(3) vacuumize: smelting furnace is continued to vacuumize, and smelting furnace vacuum remains on 20Pa～1000Pa and comes out of the stove up to foundry goods;
(4) heat fused aluminum alloy blank: when smelting furnace is evacuated to 20Pa～1000Pa, begin to send electrofusion;
(5) cast: Al-alloy metal liquid temperature in stove begins shell is poured into a mould when reaching 670 ± 10 ℃;
(6) come out of the stove: pour into a mould the vacuum breaker that finishes and come out of the stove, the stove exogenous wind is but cold.
(7) heat treatment: after aluminium alloy castings is come out of the stove, heat-treat separately, heat treating regime is for carrying out solution treatment earlier: 535 ± 5 ℃, be incubated 8～16 hours, and water-cooled is carried out Ageing Treatment again, 175 ± 5 ℃, is incubated 4～8 hours, air cooling or natrual ageing.
Further, for the above-mentioned aluminium alloy castings casting method of better implement the present invention, before heat treatment, also comprise the step that aluminium alloy castings is cleared up.
Smelting aluminium alloy under vacuum state, on the one hand completely cut off contacting of molten metal and gas, make molten metal no longer because of causing air-breathing with the water in air steam reaction, on the other hand, under the vacuum condition, gas partial pressure is little, gas solubility reduces greatly in the alloy, vacuum drying oven is constantly bled in the fusion process simultaneously, bubbing is constantly taken away in the alloy, has destroyed gas and furnace gas balance in the alloy, continuous bubbing in the alloy, thereby reach degassing effect, and then improved the welding performance of aluminium alloy.
The specific embodiment
ZL101, ZL116 aluminium alloy investment-casting casting method comprise step:
(1) shell preroast: shell is heated to 980 ± 10 ℃, is incubated 2～3 hours, cooling, washing;
(2) shell roasting: shell is heated to 650 ± 10 ℃, is incubated and cools to 200 ℃～430 ℃ after 1.5～2.5 hours with the furnace;
(3) vacuumize: smelting furnace is continued to vacuumize, and smelting furnace vacuum remains on 20Pa～1000Pa and comes out of the stove up to foundry goods;
(4) heat fused aluminum alloy blank: when smelting furnace is evacuated to 20Pa～1000Pa, begin to send electrofusion;
(5) cast: Al-alloy metal liquid temperature in stove begins shell is poured into a mould when reaching 670 ± 10 ℃;
(6) come out of the stove: pour into a mould the vacuum breaker that finishes and come out of the stove, the stove exogenous wind is but cold;
(7) reason that disappears: the part after coming out of the stove is cleared up, blast, cutting, polishing are specifically arranged, handsaw cutting running gate system, blast is to the no scab in surface, and the cast(ing) surface of polishing does not have sand holes, slag blister, burr;
(8) heat treatment: the part that cleans out is taked heat treatment, and the mode of taking has
Solution treatment: 535 ± 5 ℃, be incubated 8～16 hours, water-cooled,
Ageing Treatment: 175 ± 5 ℃, be incubated 4～8 hours, air cooling
Below in conjunction with specific embodiment explanation the present invention.
Embodiment 1:
Use material to be the ZL116 aluminium alloy, the step of taking is as follows:
(1) shell preroast: shell is heated to 980 ± 10 ℃, is incubated 2 hours, cooling, washing;
(2) shell roasting: the aluminium shell is heated to 650 ± 10 ℃, is incubated and cools to 200 ℃ with the furnace after 1.5 hours;
(3) vacuumize: smelting furnace is continued to vacuumize, and smelting furnace vacuum remains on 20Pa～1000Pa and comes out of the stove up to foundry goods;
(4) heat fused: when smelting furnace is evacuated to 20Pa-1000Pa, begin to send electrofusion;
(5) cast: Al-alloy metal liquid temperature in stove begins cast when reaching 670 ± 10 ℃;
(6) come out of the stove: pour into a mould the vacuum breaker that finishes and come out of the stove, the stove exogenous wind is but cold.
Part after coming out of the stove is cleared up, blast, cutting, polishing are specifically arranged, handsaw cutting running gate system, blast is to the no scab in surface, polishes that cast(ing) surface accomplishes not have sand holes, slag blister, burr; The part that cleans out is heat-treated with taking chamber type electric resistance furnace to heat, and the mode of taking has: solution treatment and Ageing Treatment, and condition is respectively solution treatment: 535 ± 5 ℃, be incubated 8～16 hours, water-cooled, Ageing Treatment: 175 ± 5 ℃, be incubated 4～8 hours, air cooling.
Embodiment 2:
Use material to be ZL 101 alloy, the step of taking is as follows:
(1) shell preroast: shell is heated to 980 ± 10 ℃, is incubated 3 hours, cooling, washing;
(2) shell roasting: shell is heated to 650 ± 10 ℃, is incubated and cools to 430 ℃ with the furnace after 2.5 hours;
(3) vacuumize: smelting furnace is continued to vacuumize, and smelting furnace vacuum remains on 20Pa～1000Pa and comes out of the stove up to foundry goods;
(4) heat fused aluminum alloy blank: when smelting furnace is evacuated to 20Pa～1000Pa, begin to send electrofusion;
(5) cast: Al-alloy metal liquid temperature in stove begins shell is poured into a mould when reaching 670 ± 10 ℃;
(6) come out of the stove: pour into a mould the vacuum breaker that finishes and come out of the stove, the stove exogenous wind is but cold.
Part after coming out of the stove is cleared up, blast, cutting, polishing are specifically arranged, handsaw cutting running gate system, blast is to the no scab in surface, polishes that cast(ing) surface accomplishes not have sand holes, slag blister, burr; The part that cleans out is heat-treated with taking chamber type electric resistance furnace to heat, and the mode of taking has: solution treatment and Ageing Treatment, condition is respectively solution treatment: 535 ± 5 ℃, be incubated 8～16 hours, water-cooled, Ageing Treatment: natrual ageing.
Smelting aluminium alloy under vacuum state, on the one hand completely cut off contacting of molten metal and gas, make molten metal no longer because of causing air-breathing with the water in air steam reaction, on the other hand, under the vacuum condition, gas partial pressure is little, gas solubility reduces greatly in the alloy, vacuum drying oven is constantly bled in the fusion process simultaneously, bubbing is constantly taken away in the alloy, has destroyed gas and furnace gas balance in the alloy, continuous bubbing in the alloy, thereby reach degassing effect, and then improved the welding performance of aluminium alloy.
Claims (2)
1.ZL101, ZL116 aluminium alloy investment-casting casting method, it is characterized in that, may further comprise the steps:
(1) shell preroast: shell is heated to 980 ± 10 ℃, is incubated 2 hours, cooling, washing;
(2) shell roasting: shell is heated to 650 ± 10 ℃, is incubated and cools to 200 ℃ with the furnace after 1.5 hours;
(3) vacuumize: smelting furnace is continued to vacuumize, and smelting furnace vacuum remains on 20Pa～1000Pa and comes out of the stove up to foundry goods;
(4) heat fused aluminum alloy blank: when smelting furnace is evacuated to 20Pa～1000Pa, begin to send electrofusion;
(5) cast: Al-alloy metal liquid temperature in stove begins shell is poured into a mould when reaching 670 ± 10 ℃;
(6) come out of the stove: pour into a mould the vacuum breaker that finishes and come out of the stove, the stove exogenous wind is but cold;
(7) heat treatment: after aluminium alloy castings is come out of the stove, heat-treat, heat treating regime is for carrying out solution treatment earlier: 535 ± 5 ℃, be incubated 8～16 hours, water-cooled; Carry out Ageing Treatment again: 175 ± 5 ℃, be incubated 4～8 hours, air cooling or natrual ageing.
2. aluminium alloy castings casting method according to claim 1 is characterized in that, also comprises the step that aluminium alloy castings is cleared up before heat treatment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105760614A CN102009163B (en) | 2010-12-07 | 2010-12-07 | Cast method of ZL101 and ZL116 aluminium alloy investment castings |
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| CN2010105760614A CN102009163B (en) | 2010-12-07 | 2010-12-07 | Cast method of ZL101 and ZL116 aluminium alloy investment castings |
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| CN102009163A true CN102009163A (en) | 2011-04-13 |
| CN102009163B CN102009163B (en) | 2012-07-04 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103725908A (en) * | 2014-01-13 | 2014-04-16 | 南部县德美金属有限公司 | Aluminum alloy casting process |
| CN103878344A (en) * | 2012-12-21 | 2014-06-25 | 陕西宏远航空锻造有限责任公司 | Aluminum alloy casting preparing method |
| CN104690236A (en) * | 2013-12-10 | 2015-06-10 | 陕西宏远航空锻造有限责任公司 | Production method for controlling heat resistant steel grain size |
| CN104962843A (en) * | 2015-07-20 | 2015-10-07 | 柳州市建西机械铸造厂 | Method for carrying out heat treatment on aluminium alloy casting |
| CN105087968A (en) * | 2014-05-13 | 2015-11-25 | 陕西宏远航空锻造有限责任公司 | Optimized production method for producing aluminum alloy casting through vacuum melting and casting |
| CN105478671A (en) * | 2015-12-18 | 2016-04-13 | 贵州安吉航空精密铸造有限责任公司 | Microseismic casting process for aluminum alloy precision-investment casting |
| CN106607571A (en) * | 2015-10-27 | 2017-05-03 | 陕西宏远航空锻造有限责任公司 | Process method for improving mechanical performance of ZL114A aluminum alloy |
| CN109797324A (en) * | 2019-02-22 | 2019-05-24 | 浙江铂动工贸有限公司 | A kind of manufacturing method of antirust composition wheel hub |
| CN110284028A (en) * | 2019-06-17 | 2019-09-27 | 成都市瑞驰精工机械制造有限责任公司 | A kind of casting Al-Si-Mg-Be alloy |
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| JPH11192541A (en) * | 1998-01-06 | 1999-07-21 | Yasugi Seisakusho:Kk | Casting device for aluminum alloy |
| CN1739890A (en) * | 2005-09-22 | 2006-03-01 | 上海交通大学 | Antigravity vacuum sucking cast process for preparing aluminium base composite material |
| CN101058115A (en) * | 2007-06-11 | 2007-10-24 | 清华大学 | Method for vacuum auxiliary gravity pouring investment casting thin wall piece |
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2010
- 2010-12-07 CN CN2010105760614A patent/CN102009163B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11192541A (en) * | 1998-01-06 | 1999-07-21 | Yasugi Seisakusho:Kk | Casting device for aluminum alloy |
| CN1739890A (en) * | 2005-09-22 | 2006-03-01 | 上海交通大学 | Antigravity vacuum sucking cast process for preparing aluminium base composite material |
| CN101058115A (en) * | 2007-06-11 | 2007-10-24 | 清华大学 | Method for vacuum auxiliary gravity pouring investment casting thin wall piece |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103878344A (en) * | 2012-12-21 | 2014-06-25 | 陕西宏远航空锻造有限责任公司 | Aluminum alloy casting preparing method |
| CN104690236A (en) * | 2013-12-10 | 2015-06-10 | 陕西宏远航空锻造有限责任公司 | Production method for controlling heat resistant steel grain size |
| CN103725908A (en) * | 2014-01-13 | 2014-04-16 | 南部县德美金属有限公司 | Aluminum alloy casting process |
| CN105087968A (en) * | 2014-05-13 | 2015-11-25 | 陕西宏远航空锻造有限责任公司 | Optimized production method for producing aluminum alloy casting through vacuum melting and casting |
| CN104962843A (en) * | 2015-07-20 | 2015-10-07 | 柳州市建西机械铸造厂 | Method for carrying out heat treatment on aluminium alloy casting |
| CN106607571A (en) * | 2015-10-27 | 2017-05-03 | 陕西宏远航空锻造有限责任公司 | Process method for improving mechanical performance of ZL114A aluminum alloy |
| CN105478671A (en) * | 2015-12-18 | 2016-04-13 | 贵州安吉航空精密铸造有限责任公司 | Microseismic casting process for aluminum alloy precision-investment casting |
| CN109797324A (en) * | 2019-02-22 | 2019-05-24 | 浙江铂动工贸有限公司 | A kind of manufacturing method of antirust composition wheel hub |
| CN109797324B (en) * | 2019-02-22 | 2021-10-22 | 浙江铂动工贸有限公司 | Manufacturing method of antirust alloy hub |
| CN110284028A (en) * | 2019-06-17 | 2019-09-27 | 成都市瑞驰精工机械制造有限责任公司 | A kind of casting Al-Si-Mg-Be alloy |
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| CN102009163B (en) | 2012-07-04 |
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