CN103878347B - Aluminium copper-clad casting electric machine casing production technology - Google Patents
Aluminium copper-clad casting electric machine casing production technology Download PDFInfo
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- CN103878347B CN103878347B CN201410147416.6A CN201410147416A CN103878347B CN 103878347 B CN103878347 B CN 103878347B CN 201410147416 A CN201410147416 A CN 201410147416A CN 103878347 B CN103878347 B CN 103878347B
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Abstract
Aluminium copper-clad casting electric machine casing production technology, comprise following technical process: (1), moulding, (2), repair type, (3), mould assembling, (4), casting, (5), unpack, (6), cleaning, (7), heat treatment, (8), water pressure generation, (9), turnery processing, (10), finishing packaging, it is simple that the present invention has technique, the product good heat dissipation processed, intensity advantages of higher.
Description
Technical field
The present invention relates to a kind of electric machine casing production technology, belong to field of machining.
Background technology
Along with improving constantly of people's environmental consciousness, various environmental facility is also just constantly developed.China is the first in the world personnel big countries, and traffic just becomes very important national conditions, and the discharge of an increasing full-sized bus tail gas, to the solution of air pollution problems inherent, just seems particularly important.The appearance of electric bus is fundamentally solved this problem.The main composition part of electric bus: the performance of motor is the problem that each automobile factory commercial city is paid close attention to.
Summary of the invention
The object of the invention is for solving the problems of the technologies described above, and provide a kind of aluminium copper-clad to cast electric machine casing production technology.
The technical scheme adopted is:
Aluminium copper-clad casting electric machine casing production technology of the present invention, its feature comprises following technical process:
1, moulding: be put into by sandbox on the template with mould, put corresponding chill and rising head well, starts in sand mold, to fill sand with automatic pug mixer, and by the molding sand near die face by real, sand bond reaches the molding in 30 minutes of final set after date.Sand mold after molding is placed after 40 ~ 60 minutes and is prepared to repair type.
2, type is repaiied: the brushing of the moulding defect left by mould surface high English powder alcohol-based coating, thickness 0.5 ~ 1mm, then lights with fire.
3, mould assembling: after the dirt on chill being cleaned out with sand paper, with liquefier even flame baking sand mold, make mould surface temperature reach 50 ~ 80 DEG C, rolled copper pipe is set on core, and fix position with aluminium nail, equally with even flame baking, after making mould surface temperature reach 50 ~ 80 DEG C, core is put in the nowel of sand mold, accomplish fluently the joint sealing mud bar of die joint, buckle well top box, fix upper nowel with bolt, prepare casting.
4, cast: the molten aluminium alloy temperature after rotten degasification is adjusted to after between 680 ~ 700 DEG C, with crane, the crucible that aluminium alloy solution is housed is hung in casting ladle, then with crane sling casting ladle casting.After casting, timely benefit in rising head is added aluminium alloy solution and is carried out feeding.
5, unpack: casting terminates latter 3 ~ 4 hours, casting mold is hung unpacking district and unpacks, first shake pine by sand mold near the molding sand at rising head place with pneumatic shovel, then unpack with case unpacker, after separating upper nowel, in time by chill taking-up, prevent from colliding with.Take out foundry goods from sand mold after, clean out with the core of pneumatic shovel by core cavity.
6, clear up: excised by the rising head cutter special of foundry goods, its root retains 3 ~ 4mm, to prevent cutting foundry goods defect, then with angle mill polishing foundry goods, requires that outward appearance is round and smooth smooth.After having polished, make bead, the qualified rear preparation heat treatment of outward appearance, if you have questions, can soldering on request, maximum soldering surface area may not exceed 200mm
2, shot-peening of then again polishing, until qualified.
7, heat treatment: the foundry goods after shot-peening is qualified, be put in heat-treatment furnace, heating-up time controls at 2 ~ 3 hours, solution treated temperature is 535 ± 5 DEG C, and temperature retention time 6 hours, then comes out of the stove, transfer within 12 seconds in the warm water of 40 ~ 50 DEG C and cool, take out after 40 minutes, be put in inefficacy stove and lost efficacy, the heating-up time controlled at 1 hour.Invalid temperature is 165 ± 5 DEG C, temperature retention time 7 ~ 8 hours, air cooling of then coming out of the stove.
8, water pressure generation: by the heat treating castings after shot-peening, install stamping tooling, and determine that whether Pressure gauge is intact, rate of rise 0.4MPa/min, is raised to 1.5 ~ 2MPa and starts pressurize, 5 ~ 10 minutes dwell times, and it is qualified that the foundry goods without modification and percolating water is.
9, turnery processing: by suppress qualified after foundry goods clamping on vertical lathe, start centering machine folder, confirm errorless after, by mechanical processing technique turning, after turning terminates, detect its size, just can finishing after qualified.
10, finishing packaging: the scuffing defect of the colliding with foundry goods appearance after qualified existed polishes off, then protection is installed, bead again, shot blast particles controls within 0.6 ~ 0.8mm, 2 ~ 4 minutes time, with after compressed air cleaning surface dirt after taking-up, seal up for safekeeping with Special packaging box, wait for delivery.
It is simple that the present invention has technique, the product good heat dissipation processed, intensity advantages of higher.
Detailed description of the invention
Aluminium copper-clad casting electric machine casing production technology of the present invention, specifically comprises following technical process:
1, moulding: be put into by sandbox on the template with mould, put corresponding chill and rising head well, starts in sand mold, to fill sand with automatic pug mixer, and by the molding sand near die face by real, sand bond reaches the molding in 30 minutes of final set after date.Prepare after sand mold after molding places 50 minutes to repair type.
2, type is repaiied: the brushing of the moulding defect left by mould surface high English powder alcohol-based coating, thickness 0.8mm, then lights with fire.
3, mould assembling: after the dirt on chill being cleaned out with sand paper, with liquefier even flame baking sand mold, make mould surface temperature reach 60 DEG C, rolled copper pipe is set on core, and fix position with aluminium nail, equally with even flame baking, after making mould surface temperature reach 60 DEG C, core is put in the nowel of sand mold, accomplish fluently the joint sealing mud bar of die joint, buckle well top box, fix upper nowel with bolt, prepare casting.
4, cast: the molten aluminium alloy temperature after rotten degasification is adjusted to after between 680 ~ 700 DEG C, with crane, the crucible that molten aluminium alloy is housed is hung in casting ladle, then with crane sling casting ladle casting.After casting, timely benefit in rising head is added aluminium alloy solution and is carried out feeding.
5, unpack: casting terminates latter 3 hours, casting mold is hung unpacking district and unpacks, first shake pine by sand mold near the molding sand at rising head place with pneumatic shovel, then unpack with case unpacker, separately after upper nowel, in time by chill taking-up, prevent from colliding with.Take out foundry goods from sand mold after, clean out with the core of pneumatic shovel by core cavity.
6, clear up: excised by the rising head cutter special of foundry goods, its root retains 3 ~ 4mm, to prevent cutting foundry goods defect, then with angle mill polishing foundry goods, requires that outward appearance is round and smooth smooth.After having polished, make bead, the qualified rear preparation heat treatment of outward appearance, if you have questions, can soldering on request, maximum soldering surface area may not exceed 200mm
2, shot-peening of then again polishing, until qualified.
7, heat treatment: the foundry goods after shot-peening is qualified, be put in heat-treatment furnace, heating-up time controls at 2 hours, solution treated temperature is 535 ± 5 DEG C, and temperature retention time 6 hours, then comes out of the stove, transfer within 12 seconds in the warm water of 40 DEG C and cool, take out after 40 minutes, be put in inefficacy stove and lost efficacy, the heating-up time controlled at 1 hour.Invalid temperature is 165 ± 5 DEG C, temperature retention time 8 hours, air cooling of then coming out of the stove.
8, water pressure generation: by the heat treating castings after shot-peening, install stamping tooling, and determine that whether Pressure gauge is intact, rate of rise 0.4MPa/min, is raised to 2MPa and starts pressurize, 8 minutes dwell times, and it is qualified that the foundry goods without modification and percolating water is.
9, turnery processing: by suppress qualified after foundry goods clamping on vertical lathe, start centering machine folder, confirm errorless after, by mechanical processing technique turning, after turning terminates, detect its size, just can finishing after qualified.
10, finishing packaging: the scuffing defect of the colliding with foundry goods appearance after qualified existed polishes off, then protection is installed, bead again, shot blast particles controls within 0.6 ~ 0.8mm, 3 minutes time, with after compressed air cleaning surface dirt after taking-up, seal up for safekeeping with Special packaging box, wait for delivery.
Claims (1)
1. aluminium copper-clad casting electric machine casing production technology, its feature comprises following technical process:
(1), moulding: sandbox is put on the template with mould, put corresponding chill and rising head well, start in sand mold, to fill sand with automatic pug mixer, and by the molding sand near die face by real, sand bond reaches the molding in 30 minutes of final set after date, and the sand mold after molding is placed after 40 ~ 60 minutes and prepared to repair type;
(2), repair type: the brushing of the moulding defect left by mould surface high English powder alcohol-based coating, thickness 0.5 ~ 1mm, then lights with fire;
(3), mould assembling: after the dirt on chill being cleaned out with sand paper, with liquefier even flame baking sand mold, make mould surface temperature reach 50 ~ 80 DEG C, rolled copper pipe is set on core, and fix position with aluminium nail, equally with even flame baking, after making mould surface temperature reach 50 ~ 80 DEG C, core is put in the nowel of sand mold, accomplish fluently the joint sealing mud bar of die joint, buckle well top box, fix upper nowel with bolt, prepare casting;
(4), cast: the molten aluminium alloy temperature after rotten degasification is adjusted to after between 680 ~ 700 DEG C, with crane, the crucible that molten aluminium alloy is housed is hung in casting ladle, then to sling casting ladle casting with crane, after casting, timely benefit in rising head is added aluminium alloy solution and is carried out feeding;
(5), unpack: casting terminates latter 3 ~ 4 hours, casting mold is hung unpacking district to unpack, first shake pine by sand mold near the molding sand at rising head place with pneumatic shovel, then unpack with case unpacker, separately after upper nowel, in time chill is taken out, prevent from colliding with, take out foundry goods from sand mold after, clean out with the core of pneumatic shovel by core cavity;
(6), clear up: the rising head cutter special of foundry goods is excised, its root retains 3 ~ 4mm, to prevent cutting foundry goods defect, then with angle mill polishing foundry goods, require that outward appearance is round and smooth smooth, after having polished, make bead, the qualified rear preparation heat treatment of outward appearance, if you have questions, can soldering on request, maximum soldering surface area may not exceed 200mm
2, shot-peening of then again polishing, until qualified;
(7), heat treatment: the foundry goods after shot-peening is qualified, is put in heat-treatment furnace, and the heating-up time controls at 2 ~ 3 hours, solution treated temperature is 535 ± 5 DEG C, temperature retention time 6 hours, then comes out of the stove, and transfers in the warm water of 40 ~ 50 DEG C and cool within 12 seconds, take out after 40 minutes, be put in inefficacy stove and lost efficacy, the heating-up time controls at 1 hour, and invalid temperature is 165 ± 5 DEG C, temperature retention time 7 ~ 8 hours, air cooling of then coming out of the stove;
(8), water pressure generation: by the heat treating castings after shot-peening, install stamping tooling, and determine that whether Pressure gauge is intact, rate of rise 0.4MPa/min, be raised to 1.5 ~ 2MPa and start pressurize, 5 ~ 10 minutes dwell times, it is qualified that the foundry goods without modification and percolating water is;
(9), turnery processing: by suppress qualified after foundry goods clamping on vertical lathe, start centering machine folder, confirm errorless after, by mechanical processing technique turning, after turning terminates, detect its size, just can finishing after qualified;
(10), finishing packaging: the scuffing defect of the colliding with foundry goods appearance after qualified existed polishes off, then protection is installed, bead again, shot blast particles controls within 0.6 ~ 0.8mm, 2 ~ 4 minutes time, with after compressed air cleaning surface dirt after taking-up, seal up for safekeeping with Special packaging box, wait for delivery.
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| CN201410147416.6A CN103878347B (en) | 2014-04-14 | 2014-04-14 | Aluminium copper-clad casting electric machine casing production technology |
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| CN103878347B true CN103878347B (en) | 2016-02-10 |
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| CN104368752B (en) * | 2014-10-27 | 2016-05-25 | 中核苏阀横店机械有限公司 | The casting method of the special high-alloy steel creeper tread of large-scale mine machinery |
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| CN110423855B (en) * | 2019-09-11 | 2021-01-29 | 蓬莱三和铸造有限公司 | Casting method of automobile crankshaft |
| CN110860656A (en) * | 2019-11-05 | 2020-03-06 | 北京遥感设备研究所 | Precise forming method for complex inner runner structure |
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| CN113560535B (en) * | 2021-07-29 | 2022-11-18 | 重庆美利信科技股份有限公司 | Vehicle-mounted radiator shell and manufacturing method |
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