CN105382242A - Casting process of cylinder cover - Google Patents
Casting process of cylinder cover Download PDFInfo
- Publication number
- CN105382242A CN105382242A CN201511020487.0A CN201511020487A CN105382242A CN 105382242 A CN105382242 A CN 105382242A CN 201511020487 A CN201511020487 A CN 201511020487A CN 105382242 A CN105382242 A CN 105382242A
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- China
- Prior art keywords
- core
- casting
- water jacket
- mould
- sand
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
Abstract
The invention discloses a casting process of a cylinder cover. The casting process comprises a water jacket sand core preparing procedure, a molten aluminum preparing procedure, a metal casting die preheating procedure, a core discharging procedure, a casting forming procedure, a cooling die sinking procedure, a casting cleaning procedure and a casting storage procedure. The casting process of the cylinder cover is easy to realize, so that the texture compactness of a casting is higher than that of a casting cast by a full sand mould, the airtightness is good, the mechanical properties are good, and the size precision is high; massive moulding sand is saved compared with full sand mould casting, and massive energy is saved.
Description
Technical field
The present invention relates to metal-mold low-pressure casting technical field, be specifically related to a kind of casting process of cylinder cap.
Background technology
Cherry's E3T10 cylinder cap is the critical component of engine, and its outline is for being about 335mm*256mm*120mm.Client is high to casting dimension precision prescribed, flat appearance, clear-cut are complete; Cast-internal dense structure, the casting flaw such as pore-free, shrinkage porosite; Requirement castings material is alusil alloy, tensile strength >=235Mpa that material is corresponding, extends >=1, and requires No leakage under 2bar air pressure; Again because foundry goods uniform wall thickness is interval at 3.5-4.5mm; Exhaust side adopts Double-layer drain, and complex structure, present situation is tiny, is difficult to shaping.
Summary of the invention
The object of the invention is, in order to overcome the deficiencies in the prior art, to provide a kind of casting process of cylinder cap, it is easy to realize, and make castings material density high, good airproof performance, good mechanical property, dimensional accuracy is high, meets design requirement.
A kind of technical scheme realizing above-mentioned purpose is:
A casting process for cylinder cap, comprises following operation:
S1, prepare sand core of water jacket operation: prepare sand core of water jacket mould, with 50-100 object precoated sand, the sand core of water jacket corresponding with cylinder cap is made by the sand core of water jacket mould being heated to 220 DEG C-400 DEG C, described sand core of water jacket comprises EGR (ExhaustGasRecycling, gas recirculation system) core, lower water jacket core, exhaust core, upper water sleeve core, air intake duct core, oil duct core and rising head core;
S2, prepares aluminium liquid operation, and aluminium alloy melt is dropped into melt in furnace and becomes liquid, the temperature in smelting furnace is 700 DEG C-750 DEG C, then it is stand-by to obtain aluminium liquid by aluminium liquid treatment process;
S3, preheated metallic casting die operation: first metal casting mould is arranged on casting machine, and with heated by natural gas device preheated metallic casting die, the inner chamber of metal casting mould is preheated to 200 DEG C-350 DEG C, dispose rusty stain on metal casting mould surface and foreign material with jetting tool, then spray last layer antiseized aluminum metal model cavity coating;
S4, core setting: the metal casting mould after preheating is put in the core positioning seat position be arranged on by the sand core of water jacket prepared in S1 on metal casting mould;
S5, cast molding operation: be pressed in metal casting mould by the stalk of the aluminium liquid prepared in S2 on casting machine, its cast temperature is 700 DEG C-730 DEG C;
S6, cooling die sinking operation: after cast, foundry goods becomes solid-state cylinder head casting product through the cooled and solidified of 200s under the lasting feeding effect of the watering of metal casting mould, rising head, opens metal casting mould taking-up cylinder head casting product afterwards;
S7, casting cleaning operation: remove in S6 the watering of the cylinder head casting product obtained, rising head, remove the core sand of the inner chamber of cylinder head casting product, cylinder head casting product is carried out polishing finishing and shotblasting process, then carry out to by cylinder head casting product the cylinder head casting that T6 heat treatment obtains finished product;
S8, foundry goods warehouse-in operation: quality testing is carried out to the cylinder head casting of finished product, and stores warehouse-in.
The casting process of above-mentioned a kind of cylinder cap, wherein, in operation S2, described aluminium liquid treatment process comprises aluminum anodizing operation, aluminium liquid degasification operation, aluminium liquid slagging-off operation and aluminium liquid successively and to go bad operation.
The casting process of above-mentioned a kind of cylinder cap, wherein, in operation S4, the lower core order of described sand core of water jacket is:
S41, installs EGR core in metal casting mould after preheat;
S42, installs lower water jacket core in metal casting mould after preheat;
S43, installs in metal casting mould after preheat by exhaust core and upper water sleeve core;
S44, installs air intake duct core in metal casting mould after preheat;
S45, installs oil duct core and rising head core in metal casting mould after preheat.
The casting process of a kind of cylinder cap of the present invention, comprise and prepare sand core of water jacket operation, prepare aluminium liquid operation, preheated metallic casting die operation, core setting, cast molding operation, cooling die sinking operation, casting cleaning operation and foundry goods warehouse-in operation, teemer's artistic skill metal mold of cylinder cap of the present invention produces the aluminium-silicon alloy casting of the high-quality of shape and structure complexity, while improving work situation condition, reduce the labour intensity of operator, improve production efficiency.Metal mold is adopted to add the foundry goods of the explained hereafter of core, because metal mold has good cooling effect, higher than the castings material density of full sand casting, good airproof performance, good mechanical property, dimensional accuracy is high; And save a large amount of molding sand than full sand casting, save mass energy.
Accompanying drawing explanation
Fig. 1 is the flow chart of the casting process of a kind of cylinder cap of the present invention.
Detailed description of the invention
In order to understand technical scheme of the present invention better, be described in detail by reference to the accompanying drawings below by embodiment particularly.
Refer to Fig. 1, the casting process of a kind of cylinder cap of the present invention, comprises following operation:
S1, prepare sand core of water jacket operation: prepare sand core of water jacket mould, with 50-100 object precoated sand, the sand core of water jacket corresponding with cylinder cap is made by the sand core of water jacket mould being heated to 220 DEG C-400 DEG C, described sand core of water jacket comprises EGR (ExhaustGasRecycling, gas recirculation system) core, lower water jacket core, exhaust core, upper water sleeve core, air intake duct core, oil duct core and rising head core;
S2, prepare aluminium liquid operation, aluminium alloy melt is dropped into melt in furnace and becomes liquid, temperature in smelting furnace is 700 DEG C-750 DEG C, obtain aluminium liquid by aluminium liquid treatment process more stand-by, aluminium liquid treatment process comprises aluminum anodizing operation, aluminium liquid degasification operation, aluminium liquid slagging-off operation and aluminium liquid successively and to go bad operation;
S3, preheated metallic casting die operation: first metal casting mould is arranged on casting machine, and with heated by natural gas device preheated metallic casting die, the inner chamber of metal casting mould is preheated to 200 DEG C-350 DEG C, dispose rusty stain on metal casting mould surface and foreign material with jetting tool, then spray last layer antiseized aluminum metal model cavity coating;
S4, core setting: the metal casting mould after preheating is put in the core positioning seat position be arranged on by the sand core of water jacket prepared in S1 on metal casting mould; The lower core order of sand core of water jacket is:
S41, installs EGR core in metal casting mould after preheat;
S42, installs lower water jacket core in metal casting mould after preheat;
S43, installs in metal casting mould after preheat by exhaust core and upper water sleeve core;
S44, installs air intake duct core in metal casting mould after preheat;
S45, installs oil duct core and rising head core in metal casting mould after preheat.
S5, cast molding operation: be pressed in metal casting mould by the stalk of the aluminium liquid prepared in S2 on casting machine, its cast temperature is 700 DEG C-730 DEG C;
S6, cooling die sinking operation: after cast, foundry goods becomes solid-state cylinder head casting product through the cooled and solidified of 200s under the lasting feeding effect of the watering of metal casting mould, rising head, opens metal casting mould taking-up cylinder head casting product afterwards;
S7, casting cleaning operation: remove in S6 the watering of the cylinder head casting product obtained, rising head, remove the core sand of the inner chamber of cylinder head casting product, cylinder head casting product is carried out polishing finishing and shotblasting process, then carry out to by cylinder head casting product the cylinder head casting that T6 heat treatment obtains finished product;
S8, foundry goods warehouse-in operation: quality testing is carried out to the cylinder head casting of finished product, and stores warehouse-in.
The casting process of cylinder cap of the present invention, makes the sand core of water jacket corresponding with cylinder cap with precoated sand, adopts the separately design of upper and lower water jacket; All cores all adopt hot core technological design.The casting process of cylinder cap of the present invention,
Adopt double-layer water jacket coremaking and bottom filling casting process, its useful technique effect is: adopt teemer's artistic skill metal mold of the present invention to produce the aluminium-silicon alloy casting of the high-quality of shape and structure complexity, while improving work situation condition, reduce the labour intensity of operator, improve production efficiency.Metal mold is adopted to add the foundry goods of the explained hereafter of core, because metal mold has good cooling effect, higher than the castings material density of full sand casting, good airproof performance, good mechanical property, dimensional accuracy is high; And save a large amount of molding sand than full sand casting, save mass energy
Those of ordinary skill in the art will be appreciated that, above embodiment is only used to the present invention is described, and be not used as limitation of the invention, as long as in spirit of the present invention, all will drop in Claims scope of the present invention the change of the above embodiment, modification.
Claims (3)
1. a casting process for cylinder cap, is characterized in that, comprises following operation:
S1, prepare sand core of water jacket operation: prepare sand core of water jacket mould, with 50-100 object precoated sand, make the sand core of water jacket corresponding with cylinder cap by the sand core of water jacket mould being heated to 220 DEG C-400 DEG C, described sand core of water jacket comprises EGR core, lower water jacket core, exhaust core, upper water sleeve core, air intake duct core, oil duct core and rising head core;
S2, prepares aluminium liquid operation, and aluminium alloy melt is dropped into melt in furnace and becomes liquid, the temperature in smelting furnace is 700 DEG C-750 DEG C, then it is stand-by to obtain aluminium liquid by aluminium liquid treatment process;
S3, preheated metallic casting die operation: first metal casting mould is arranged on casting machine, and with heated by natural gas device preheated metallic casting die, the inner chamber of metal casting mould is preheated to 200 DEG C-350 DEG C, dispose rusty stain on metal casting mould surface and foreign material with jetting tool, then spray last layer antiseized aluminum metal model cavity coating;
S4, core setting: the metal casting mould after preheating is put in the core positioning seat position be arranged on by the sand core of water jacket prepared in S1 on metal casting mould;
S5, cast molding operation: be pressed in metal casting mould by the stalk of the aluminium liquid prepared in S2 on casting machine, its cast temperature is 700 DEG C-730 DEG C;
S6, cooling die sinking operation: after cast, foundry goods becomes solid-state cylinder head casting product through the cooled and solidified of 200s under the lasting feeding effect of the watering of metal casting mould, rising head, opens metal casting mould taking-up cylinder head casting product afterwards;
S7, casting cleaning operation: remove in S6 the watering of the cylinder head casting product obtained, rising head, remove the core sand of the inner chamber of cylinder head casting product, cylinder head casting product is carried out polishing finishing and shotblasting process, then carry out to by cylinder head casting product the cylinder head casting that T6 heat treatment obtains finished product;
S8, foundry goods warehouse-in operation: quality testing is carried out to the cylinder head casting of finished product, and stores warehouse-in.
2. the casting process of a kind of cylinder cap according to claim 1, is characterized in that, in operation S2, described aluminium liquid treatment process comprises aluminum anodizing operation, aluminium liquid degasification operation, aluminium liquid slagging-off operation and aluminium liquid successively and to go bad operation.
3. the casting process of a kind of cylinder cap according to claim 1, is characterized in that, in operation S4, the lower core order of described sand core of water jacket is:
S41, installs EGR core in metal casting mould after preheat;
S42, installs lower water jacket core in metal casting mould after preheat;
S43, installs in metal casting mould after preheat by exhaust core and upper water sleeve core;
S44, installs air intake duct core in metal casting mould after preheat;
S45, installs oil duct core and rising head core in metal casting mould after preheat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511020487.0A CN105382242A (en) | 2015-12-30 | 2015-12-30 | Casting process of cylinder cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511020487.0A CN105382242A (en) | 2015-12-30 | 2015-12-30 | Casting process of cylinder cover |
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| CN105382242A true CN105382242A (en) | 2016-03-09 |
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| CN201511020487.0A Pending CN105382242A (en) | 2015-12-30 | 2015-12-30 | Casting process of cylinder cover |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106271487A (en) * | 2016-08-16 | 2017-01-04 | 安徽天祥空调科技有限公司 | A kind of production technology of air-conditioning heat dissipation pipe |
| CN106734955A (en) * | 2016-12-22 | 2017-05-31 | 上海爱仕达汽车零部件有限公司 | A kind of aluminium alloy steering gear housing casting process |
| CN108952990A (en) * | 2018-06-27 | 2018-12-07 | 山西中条山机电设备有限公司 | A kind of high-strength alloy cast-iron head and its production technology |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101066555A (en) * | 2007-06-06 | 2007-11-07 | 中国兵器工业第五二研究所 | Process of making oil cylinder body and cover with aluminium alloy |
| CN102935491A (en) * | 2012-11-02 | 2013-02-20 | 温州瑞明工业股份有限公司 | Metal section mould with controllable cross section and gravity slantingly-rotated foundry technique of aluminum alloy cylinder cover of metal section mould |
| CN103182471A (en) * | 2011-12-30 | 2013-07-03 | 上海爱仕达汽车零部件有限公司 | Casting technology for vacuum pump box body |
| CN103691886A (en) * | 2013-12-24 | 2014-04-02 | 上海爱仕达汽车零部件有限公司 | Metal mould casting method of cylinder cover |
| CN103878324A (en) * | 2012-12-19 | 2014-06-25 | 上海爱仕达汽车零部件有限公司 | Cylinder cover-casting mold and casting method |
-
2015
- 2015-12-30 CN CN201511020487.0A patent/CN105382242A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101066555A (en) * | 2007-06-06 | 2007-11-07 | 中国兵器工业第五二研究所 | Process of making oil cylinder body and cover with aluminium alloy |
| CN103182471A (en) * | 2011-12-30 | 2013-07-03 | 上海爱仕达汽车零部件有限公司 | Casting technology for vacuum pump box body |
| CN102935491A (en) * | 2012-11-02 | 2013-02-20 | 温州瑞明工业股份有限公司 | Metal section mould with controllable cross section and gravity slantingly-rotated foundry technique of aluminum alloy cylinder cover of metal section mould |
| CN103878324A (en) * | 2012-12-19 | 2014-06-25 | 上海爱仕达汽车零部件有限公司 | Cylinder cover-casting mold and casting method |
| CN103691886A (en) * | 2013-12-24 | 2014-04-02 | 上海爱仕达汽车零部件有限公司 | Metal mould casting method of cylinder cover |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106271487A (en) * | 2016-08-16 | 2017-01-04 | 安徽天祥空调科技有限公司 | A kind of production technology of air-conditioning heat dissipation pipe |
| CN106734955A (en) * | 2016-12-22 | 2017-05-31 | 上海爱仕达汽车零部件有限公司 | A kind of aluminium alloy steering gear housing casting process |
| CN108952990A (en) * | 2018-06-27 | 2018-12-07 | 山西中条山机电设备有限公司 | A kind of high-strength alloy cast-iron head and its production technology |
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Application publication date: 20160309 |
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