CN104525899B - Vacuum pressing and casting electronic appliance mold aluminium alloy castings casting process - Google Patents
Vacuum pressing and casting electronic appliance mold aluminium alloy castings casting process Download PDFInfo
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- CN104525899B CN104525899B CN201410779362.5A CN201410779362A CN104525899B CN 104525899 B CN104525899 B CN 104525899B CN 201410779362 A CN201410779362 A CN 201410779362A CN 104525899 B CN104525899 B CN 104525899B
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- temperature
- aluminum liquid
- aluminium alloy
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- foundry goods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/06—Vacuum casting, i.e. making use of vacuum to fill the mould
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0005—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with at least one oxide and at least one of carbides, nitrides, borides or silicides as the main non-metallic constituents
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
A kind of vacuum pressing and casting electronic appliance mold aluminium alloy castings casting process, comprises the technical steps that: 1) preparation aluminium alloy: according to the following components that weighs of percentage by weight: carborundum 9%, manganese 0.3%, magnesium 0.2%, ferrum 0.2%, titanium dioxide crystal whisker 0.08%, rare earth 1.5%, zinc 0.1%, stannum 0.007%, auxiliary agent 1.5%, aluminum surplus；2) reasonably to control temperature of aluminum liquid during aluminium alloy smelting well, remove the gred when temperature of aluminum liquid reaches 690 DEG C, the temperature of Metamorphism treatment is at 705 715 DEG C, and the temperature of blowing refining is at 725 735 DEG C；3) the aluminum liquid after refine is skimmed after standing a period of time, because containing pipeline, temperature of aluminum liquid needs lower slightly, and the casting last aluminum liquid cast temperature containing pipe foundry goods controls at 695 705 DEG C；4) unpacking taking-up foundry goods after foundry goods natural cooling.The present invention, by improving the formula of conventional aluminum alloy, adds new beneficial element, and the cast of preparation is unlikely to deform, good in economic efficiency.
Description
Technical field
The present invention relates to casting technology field, be specifically related to a kind of vacuum pressing and casting electronic appliance mold aluminium alloy castings
Casting process.
Background technology
Household electrical appliances die for inner is the one of vacuum plastics sucking moulding, refrigerator producer by mould is heated,
Then ABS plastic is softened plastics sucking moulding.The heating of mould is by being embedded in the water inside aluminium alloy castings
Pipe realizes, and circulate in water pipe hot water, realizes the temperature to unitary mould by controlling discharge and temperature
Degree controls.
At present, general employing Sand Moulding Process casting household electrical appliances die for inner, the pre-buried of water pipe then passes through at sand
Making tube seat in type in advance, then the shape of tube seat is worked it out by moulding, will be curved according to tube seat size in advance
Copper pipe or the stainless steel tube of system are placed in tube seat, by using the iron wire pipe clamp of U-shaped, are fixed by pipeline,
Then with damp sand, the two ends of pipeline are blocked, reserve interface position, pre-buried copper pipe or stainless steel tube
Scribble one layer of graphite, play the heat insulation effect preventing and softening and prevent aluminum liquid circulation copper pipe from entering pipeline.
Traditional aluminum alloy material performance is the most single, cold-resistant, heat resistance is poor.
Summary of the invention
The technical problem to be solved is to provide a kind of method simple, the vacuum of good heat-insulation effect
Casting electronic appliance mold aluminium alloy castings casting process.
The technical problem to be solved realizes by the following technical solutions:
A kind of vacuum pressing and casting electronic appliance mold aluminium alloy castings casting process, comprises the technical steps that:
1) preparation aluminium alloy:
The following components that weighs according to percentage by weight:
Carborundum 8.0-10.5%
Manganese 0.2-0.5%
Magnesium 0.15-0.35%
Ferrum 0.05-0.6%
Titanium dioxide crystal whisker 0.05-0.1%
Rare earth 0.5-2%
Zinc 0.05-0.25%
Stannum 0.005-0.01%
Auxiliary agent 0.5-2%
Aluminum surplus；
Above-mentioned auxiliary agent is to be made up of the component of following weight % number: Graphene 5%, potassium titanate crystal whisker 10%, nitrogen
Change boron 2%, pyrite cinder 5%, slaked lime powder 2%, Pulvis Talci 0.5%, lucium 2%, kyanite
Powder 0.5%, calcined kaolin 0.5%；
2) aluminium alloy smelting:
Reasonably to control temperature of aluminum liquid during aluminium alloy smelting well, remove when temperature of aluminum liquid reaches 690 DEG C
Slag, the temperature of Metamorphism treatment is at 705-715 DEG C, and the temperature of blowing refining is at 725-735 DEG C；
3) aluminum liquid casting:
Aluminum liquid after refine is skimmed after standing a period of time, because containing pipeline, temperature of aluminum liquid needs lower slightly,
The casting last aluminum liquid cast temperature containing pipe foundry goods controls at 695-705 DEG C；
4) unpacking taking-up foundry goods after foundry goods natural cooling.
The preparation method of above-mentioned auxiliary agent is: by potassium titanate crystal whisker, boron nitride, pyrite cinder, slaked lime
Powder, Pulvis Talci, aquamaine stone powder and calcined kaolin powder with dehydrated alcohol as disperse medium, wherein powder
It is 1:30 with the mass ratio of ethanol, ultrasonic disperse 1 hour on supersonic cleaning machine；Through ultrasonic disperse
Compound is put in nylon ball grinder, adds Graphene and lucium with agate ball as abrading-ball, ball material
Mass ratio is 7:1, under conditions of rotating speed is 150 revs/min, and continuous ball milling 2 hours in ball mill, will
The complete powder of ball milling is poured in powder dish together with Achates abrading-ball, dries at 80 DEG C, dry
Powder sieves, and takes out Achates abrading-ball, is then ground by mixed powder, till without bigger reunion, so far,
Modified foaming agent is prepared complete.
The invention has the beneficial effects as follows: the present invention, by improving the formula of conventional aluminum alloy, adds new having
Benefit element, the cast of preparation is unlikely to deform, good in economic efficiency, decreases traditional preparation process, reduces
Production cost, thickening that foaming agent has and the dual function of foaming increase the porosity of foamed aluminium.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and effect and be readily apparent from
Solve, below in conjunction with specific embodiment, the present invention is expanded on further.
A kind of vacuum pressing and casting electronic appliance mold aluminium alloy castings casting process, comprises the technical steps that:
1) preparation aluminium alloy:
The following components that weighs according to percentage by weight: carborundum 9%, manganese 0.3%, magnesium 0.2%, ferrum 0.2%,
Titanium dioxide crystal whisker 0.08%, rare earth 1.5%, zinc 0.1%, stannum 0.007%, auxiliary agent 1.5%, aluminum surplus；
Above-mentioned auxiliary agent is to be made up of the component of following weight % number: Graphene 5%, potassium titanate crystal whisker 10%, nitrogen
Change boron 2%, pyrite cinder 5%, slaked lime powder 2%, Pulvis Talci 0.5%, lucium 2%, kyanite
Powder 0.5%, calcined kaolin 0.5%；
2) aluminium alloy smelting:
Reasonably to control temperature of aluminum liquid during aluminium alloy smelting well, remove when temperature of aluminum liquid reaches 690 DEG C
Slag, the temperature of Metamorphism treatment is at 705-715 DEG C, and the temperature of blowing refining is at 725-735 DEG C；
3) aluminum liquid casting:
Aluminum liquid after refine is skimmed after standing a period of time, because containing pipeline, temperature of aluminum liquid needs lower slightly,
The casting last aluminum liquid cast temperature containing pipe foundry goods controls at 695-705 DEG C；
4) unpacking taking-up foundry goods after foundry goods natural cooling.
The preparation method of above-mentioned auxiliary agent is: by potassium titanate crystal whisker, boron nitride, pyrite cinder, slaked lime
Powder, Pulvis Talci, aquamaine stone powder and calcined kaolin powder with dehydrated alcohol as disperse medium, wherein powder
It is 1:30 with the mass ratio of ethanol, ultrasonic disperse 1 hour on supersonic cleaning machine；Through ultrasonic disperse
Compound is put in nylon ball grinder, adds Graphene and lucium with agate ball as abrading-ball, ball material
Mass ratio is 7:1, under conditions of rotating speed is 150 revs/min, and continuous ball milling 2 hours in ball mill, will
The complete powder of ball milling is poured in powder dish together with Achates abrading-ball, dries at 80 DEG C, dry
Powder sieves, and takes out Achates abrading-ball, is then ground by mixed powder, till without bigger reunion, so far,
Modified foaming agent is prepared complete.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.One's own profession
Skilled person will appreciate that of industry, the present invention is not restricted to the described embodiments, above-described embodiment and explanation
The principle that the present invention is simply described described in book, without departing from the spirit and scope of the present invention,
The present invention also has various changes and modifications, and these changes and improvements both fall within claimed invention model
In enclosing.Claimed scope is defined by appending claims and equivalent thereof.
Claims (1)
1. a vacuum pressing and casting electronic appliance mold aluminium alloy castings casting process, it is characterised in that include as follows
Processing step:
1) preparation aluminium alloy:
Following components is weighed according to percentage by weight:
Carborundum 8.0-10.5%
Manganese 0.2-0.5%
Magnesium 0.15-0.35%
Ferrum 0.05-0.6%
Titanium dioxide crystal whisker 0.05-0.1%
Rare earth 0.5-2%
Zinc 0.05-0.25%
Stannum 0.005-0.01%
Auxiliary agent 0.5-2%
Aluminum surplus；
2) aluminium alloy smelting:
Reasonably to control temperature of aluminum liquid during aluminium alloy smelting well, remove when temperature of aluminum liquid reaches 690 DEG C
Slag, the temperature of Metamorphism treatment is at 705-715 DEG C, and the temperature of blowing refining is at 725-735 DEG C；
3) aluminum liquid casting:
Aluminum liquid after refine is skimmed after standing a period of time, because containing pipeline, temperature of aluminum liquid needs lower slightly,
The casting last aluminum liquid cast temperature containing pipe foundry goods controls at 695-705 DEG C；
4) unpacking taking-up foundry goods after foundry goods natural cooling.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410779362.5A CN104525899B (en) | 2014-12-15 | 2014-12-15 | Vacuum pressing and casting electronic appliance mold aluminium alloy castings casting process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410779362.5A CN104525899B (en) | 2014-12-15 | 2014-12-15 | Vacuum pressing and casting electronic appliance mold aluminium alloy castings casting process |
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| CN104525899A CN104525899A (en) | 2015-04-22 |
| CN104525899B true CN104525899B (en) | 2016-08-17 |
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| CN106738512A (en) * | 2016-12-13 | 2017-05-31 | 柳州通为机械有限公司 | Oblique rubber tire placenta |
| CN108104571A (en) * | 2017-12-27 | 2018-06-01 | 山东泰义金属科技有限公司 | A kind of aluminium alloy communications tower |
| CN109529638A (en) * | 2018-12-25 | 2019-03-29 | 武汉艾科滤膜技术有限公司 | A kind of high temperature resistant precision molecular cut off ultrafiltration membrane and preparation method thereof |
| CN113355544A (en) * | 2021-05-29 | 2021-09-07 | 安徽佳之合新材料科技有限公司 | Manufacturing process of cast special-shaped aluminum alloy railing |
| CN113621840A (en) * | 2021-07-12 | 2021-11-09 | 南京公诚石油技术有限公司 | Enhanced metal alloy processing technology for descaling |
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| JP4998277B2 (en) * | 2007-01-22 | 2012-08-15 | 株式会社豊田中央研究所 | Aluminum alloy casting material and manufacturing method thereof, aluminum alloy material and manufacturing method thereof |
| CN100543165C (en) * | 2007-11-23 | 2009-09-23 | 中国铝业股份有限公司 | Vacuum Stirring Composite Particle Reinforced Aluminum Matrix Composite Material and Its Preparation Technology |
| CN101474668B (en) * | 2009-01-13 | 2010-11-03 | 通州市四安球墨铸铁有限公司 | Method for casting aluminium alloy |
| CN101787454B (en) * | 2010-04-12 | 2011-11-23 | 中国船舶重工集团公司第十二研究所 | Method for preparing multicomponent reinforced aluminum-base composite material |
| CN102443712B (en) * | 2010-10-11 | 2013-05-22 | 贵州航天风华精密设备有限责任公司 | Casting method for high-strength cast aluminum alloy |
| CN102773409B (en) * | 2012-07-24 | 2014-01-01 | 滁州金诺实业有限公司 | Method for manufacturing casting blank of die for inner containers of household appliances on basis of metal cavity with cold iron structure |
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