CN103878347A - Production process for casting motor shell by means of aluminum clad copper - Google Patents
Production process for casting motor shell by means of aluminum clad copper Download PDFInfo
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- CN103878347A CN103878347A CN201410147416.6A CN201410147416A CN103878347A CN 103878347 A CN103878347 A CN 103878347A CN 201410147416 A CN201410147416 A CN 201410147416A CN 103878347 A CN103878347 A CN 103878347A
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Abstract
A production process for casting a motor shell by means of aluminum clad copper includes the following steps of (1) modeling, (2) shaping, (3) box assembling, (4) casting, (5) box disassembling, (6) cleaning, (7) heat treatment, (8) water pressure application, (9) turning and (10) finishing package. The production process has the advantages of being simple, good in product heat dissipation, high in strength and the like.
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 facilities are also just constantly developed.China is the first in the world personnel big countries, and traffic just becomes very important national conditions, and the solution of the discharge of an increasing full-sized bus tail gas to 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 a kind of aluminium copper-clad casting electric machine casing production technology is provided.
The technical scheme adopting is:
Aluminium copper-clad casting electric machine casing production technology of the present invention, its feature comprises following technical process:
1, moulding: sandbox is put on the template with mould, puts corresponding chill and rising head well, start to fill sand with automatic pug mixer in sand mold, and near molding sand die face is pressed in fact, sand bond reaches the molding in 30 minutes of final set after date.Sand mold after molding is placed preparation after 40～60 minutes and is repaiied type.
2, repair type: the brushing of the high English powder alcohol-based coating of the moulding defect that sand mold surface is left, 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 its surface temperature reach 50～80 ℃, rolled copper pipe is set on core, and fix position with aluminium nail, with even flame baking, its surface temperature is reached after 50～80 ℃ equally, 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, casting: after the molten aluminium alloy temperature after rotten degasification is adjusted between 680～700 ℃, the crucible that aluminum alloy melt is housed is hung in casting ladle with crane, then with the crane casting ladle casting of slinging.After casting, add aluminium liquid and carry out feeding to mending in rising head in time.
5, unpack: after casting finishes 3～4 hours, casting mold is hung to the district that unpacks and unpacks, first with pneumatic shovel by the molding sand shake pine near rising head place on sand mold, then unpack with case unpacker, after separately upper nowel, in time chill is taken out, prevent from colliding with.From sand mold, take out after foundry goods, the core of core cavity is cleaned out with pneumatic shovel.
6, cleaning: the water riser of foundry goods is excised with cutter special, and its root retains 3～4mm, damaged to prevent cutting foundry goods, then, with angle mill polishing foundry goods, requires outward appearance round and smooth smooth.After having polished, make bead, the qualified rear preparation heat treatment of outward appearance, if you have questions, and soldering on request, maximum soldering surface area can not exceed 200mm
2, the 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 is controlled at 2～3 hours, solution treated temperature 535 ± 5o, temperature retention time 6 hours, then comes out of the stove, within 12 seconds, transfer in the warm water of 40～50 ℃, carry out cooling, after 40 minutes, take out, be put in inefficacy stove and lost efficacy, the heating-up time is controlled at 1 hour.Invalid temperature 165 ± 5o, temperature retention time 7～8 hours, the air cooling of then coming out of the stove.
8, water pressure generation: by the heat treatment foundry goods after shot-peening, install stamping tooling, and whether definite Pressure gauge is intact, rate of rise 0.4MPa/ minute, is raised to 1.5～2MPa and starts pressurize, 5～10 minutes dwell times, it is qualified to be without the foundry goods of modification and percolating water.
9, turning processing: by suppressing foundry goods clamping after qualified to vertical lathe, start centering machine folder, confirm errorless after, by mechanical processing technique turning, after turning finishes, detect its size, just can finishing after qualified.
10, finishing packing: the defects such as scuffing of colliding with that the foundry goods appearance after qualified is existed polish off, then install protection, bead again, within shot blast particles is controlled at 0.6～0.8mm, 2～4 minutes time, after taking-up, with after compressed air cleaning surface dirt, 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 processing, intensity advantages of higher.
The specific embodiment
Aluminium copper-clad casting electric machine casing production technology of the present invention, specifically comprises following technical process:
1, moulding: sandbox is put on the template with mould, puts corresponding chill and rising head well, start to fill sand with automatic pug mixer in sand mold, and near molding sand die face is pressed in fact, sand bond reaches the molding in 30 minutes of final set after date.Sand mold after molding is placed preparation after 50 minutes and is repaiied type.
2, repair type: the brushing of the high English powder alcohol-based coating of the moulding defect that sand mold surface is left, 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 its surface temperature reach 60 ℃, rolled copper pipe is set on core, and fix position with aluminium nail, with even flame baking, its surface temperature is reached after 60 ℃ equally, 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, casting: after the molten aluminium alloy temperature after rotten degasification is adjusted between 680～700 ℃, the crucible that aluminum alloy melt is housed is hung in casting ladle with crane, then with the crane casting ladle casting of slinging.After casting, add aluminium liquid and carry out feeding to mending in rising head in time.
5, unpacking: casting finishes latter 3 hours, casting mold is hung to the district that unpacks and unpack, first with pneumatic shovel, the molding sand near rising head place on sand mold is shaken to pine, then unpack with case unpacker, after separately upper nowel, by chill taking-up, prevent from colliding with in time.From sand mold, take out after foundry goods, the core of core cavity is cleaned out with pneumatic shovel.
6, cleaning: the water riser of foundry goods is excised with cutter special, and its root retains 3～4mm, damaged to prevent cutting foundry goods, then, with angle mill polishing foundry goods, requires outward appearance round and smooth smooth.After having polished, make bead, the qualified rear preparation heat treatment of outward appearance, if you have questions, and soldering on request, maximum soldering surface area can not exceed 200mm
2, the 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 is controlled at 2 hours, solution treated temperature 535 ± 5o, temperature retention time 6 hours, then comes out of the stove, within 12 seconds, transfer in the warm water of 40 ℃, carry out cooling, after 40 minutes, take out, be put in inefficacy stove and lost efficacy, the heating-up time is controlled at 1 hour.Invalid temperature 165 ± 5o, temperature retention time 8 hours, the air cooling of then coming out of the stove.
8, water pressure generation: by the heat treatment foundry goods after shot-peening, install stamping tooling, and whether definite Pressure gauge is intact, rate of rise 0.4MPa/ minute, is raised to 2MPa and starts pressurize, 8 minutes dwell times, it is qualified to be without the foundry goods of modification and percolating water.
9, turning processing: by suppressing foundry goods clamping after qualified to vertical lathe, start centering machine folder, confirm errorless after, by mechanical processing technique turning, after turning finishes, detect its size, just can finishing after qualified.
10, finishing packing: the defects such as scuffing of colliding with that the foundry goods appearance after qualified is existed polish off, then install protection, bead again, within shot blast particles is controlled at 0.6～0.8mm, 3 minutes time, after taking-up, with after compressed air cleaning surface dirt, 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 near molding sand die face is pressed real, sand bond reaches the molding in 30 minutes of final set after date, and the sand mold after molding is placed preparation after 40～60 minutes and repaiied type;
(2), repair type: the brushing of the high English powder alcohol-based coating of the moulding defect that sand mold surface is left, 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 its surface temperature reach 50～80 ℃, rolled copper pipe is set on core, and fix position with aluminium nail, with even flame baking, its surface temperature is reached after 50～80 ℃ equally, 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), casting: after the molten aluminium alloy temperature after rotten degasification is adjusted between 680～700 ℃, the crucible that aluminum alloy melt is housed is hung in casting ladle with crane, then with sling casting ladle casting of crane, after casting, add aluminium liquid and carry out feeding to mending in rising head in time;
(5), unpack: casting finishes latter 3～4 hours, casting mold is hung to the district that unpacks unpacks, first with pneumatic shovel, the molding sand near rising head place on sand mold is shaken to pine, then unpack with case unpacker, after separately upper nowel, in time chill is taken out, prevent from colliding with, from sand mold, take out after foundry goods, the core of core cavity is cleaned out with pneumatic shovel;
(6), cleaning: the water riser of foundry goods is excised with cutter special, its root retains 3～4mm, damaged to prevent cutting foundry goods, then, with angle mill polishing foundry goods, require outward appearance round and smooth smooth, after having polished, make bead, the qualified rear preparation heat treatment of outward appearance, if you have questions, soldering on request, maximum soldering surface area can not exceed 200mm
2, the 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, the heating-up time is controlled at 2～3 hours, solution treated temperature 535 ± 5o, temperature retention time 6 hours, then comes out of the stove, within 12 seconds, transfer in the warm water of 40～50 ℃, carry out cooling, after 40 minutes, take out, be put in inefficacy stove and lost efficacy, the heating-up time is controlled at 1 hour, invalid temperature 165 ± 5o, temperature retention time 7～8 hours, the air cooling of then coming out of the stove;
(8), water pressure generation: by the heat treatment foundry goods after shot-peening, install stamping tooling, and whether definite Pressure gauge is intact, rate of rise 0.4MPa/ minute, be raised to 1.5～2MPa and start pressurize, 5～10 minutes dwell times, it is qualified to be without the foundry goods of modification and percolating water;
(9), turning processing: by suppressing foundry goods clamping after qualified to vertical lathe, start centering machine folder, confirm errorless after, by mechanical processing technique turning, after turning finishes, detect its size, just can finishing after qualified;
(10), finishing packing: the defects such as scuffing of colliding with that the foundry goods appearance after qualified is existed polish off, then install protection, bead again, within shot blast particles is controlled at 0.6～0.8mm, 2～4 minutes time, after taking-up, with after compressed air cleaning surface dirt, 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 CN103878347B (en) | 2016-02-10 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104368752A (en) * | 2014-10-27 | 2015-02-25 | 中核苏阀横店机械有限公司 | Method for casting special high-alloy steel track shoe for large mining machinery |
| CN107070052A (en) * | 2017-05-27 | 2017-08-18 | 北京新能源汽车股份有限公司 | The manufacture method of electric machine casing and electric machine casing |
| CN108707733A (en) * | 2018-05-29 | 2018-10-26 | 辽宁福鞍重工股份有限公司 | A kind of process shortening the large-scale steel-casting production cycle |
| CN108941815A (en) * | 2018-08-09 | 2018-12-07 | 苏州铜盟电气有限公司 | A method of casting and welding |
| CN110423855A (en) * | 2019-09-11 | 2019-11-08 | 朱金义 | A kind of casting method of automobile crane |
| 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 |
| CN113560535A (en) * | 2021-07-29 | 2021-10-29 | 重庆美利信科技股份有限公司 | Vehicle-mounted radiator shell and manufacturing method |
| CN113864505A (en) * | 2021-09-28 | 2021-12-31 | 常州通合新材料科技有限公司 | Lower shell of electric valve, mold and production process thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104368752A (en) * | 2014-10-27 | 2015-02-25 | 中核苏阀横店机械有限公司 | Method for casting special high-alloy steel track shoe for large mining machinery |
| CN107070052A (en) * | 2017-05-27 | 2017-08-18 | 北京新能源汽车股份有限公司 | The manufacture method of electric machine casing and electric machine casing |
| CN107070052B (en) * | 2017-05-27 | 2020-08-18 | 北京新能源汽车股份有限公司 | Motor housing and method for manufacturing motor housing |
| CN108707733A (en) * | 2018-05-29 | 2018-10-26 | 辽宁福鞍重工股份有限公司 | A kind of process shortening the large-scale steel-casting production cycle |
| CN108707733B (en) * | 2018-05-29 | 2019-11-19 | 辽宁福鞍重工股份有限公司 | A kind of process shortening the large-scale steel-casting production cycle |
| CN108941815A (en) * | 2018-08-09 | 2018-12-07 | 苏州铜盟电气有限公司 | A method of casting and welding |
| CN110423855A (en) * | 2019-09-11 | 2019-11-08 | 朱金义 | A kind of casting method of automobile crane |
| 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 |
| CN113560535A (en) * | 2021-07-29 | 2021-10-29 | 重庆美利信科技股份有限公司 | Vehicle-mounted radiator shell and manufacturing method |
| 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 |
| CN113864505A (en) * | 2021-09-28 | 2021-12-31 | 常州通合新材料科技有限公司 | Lower shell of electric valve, mold and production process thereof |
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| CN103878347B (en) | 2016-02-10 |
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