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Molding and casting method for automobile cylinder cover with high air-tightness

A pouring method, the technology of the automobile cylinder, applied in the direction of casting mold composition, casting molding equipment, casting mold, etc., can solve the problems of little effect and achieve the effect of simple formula, increased air tightness and easy implementation

Inactive Publication Date: 2013-07-17
贵州英吉尔机械制造有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although there are also many technological measures implemented for this problem, most of them have little effect

Method used

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  • Molding and casting method for automobile cylinder cover with high air-tightness

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Embodiment Construction

[0019] Embodiment of the present invention: the forming pouring method of the high-airtight automobile cylinder head, prepare the composite covering agent for standby (composition and usage method of the composite covering agent all adopt the technology disclosed in the authorized invention patent with application number 201010172549.0 content), after melting the charge of the cylinder head, add composite covering agent I to the furnace, heat up to the temperature required by the process, remove slag and discharge water, then add composite covering agent II, and then pour; adopt lost foam casting process , while pouring the molten metal formed by melting the furnace charge of the cylinder head into the lost foam, mechanically vibrate the molten metal until the molten metal is completely solidified; Vibration motor, the vibration frequency of the motor is 50HZ, the amplitude is 1mm, and the exciting force is 1.5KN.

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Abstract

The invention discloses a molding and casting method for an automobile cylinder cover with high air-tightness. According to the invention, a lost foam casting process is employed, and when molten metal is being cast into lost foam, the molten metal is subjected to mechanical vibration until the molten metal is completely solidified. The manner of mechanical vibration casting is utilized in production of a cylinder cover cast, and such a manner enables crystal grains to be refined, a compact structure to be obtained and air-tightness of the cylinder cover to be improved; gas and inclusions in the molten metal are allowed to float up to improve the quality of molten iron; a composite covering agent is used to remove inclusions and gas in the molten iron, so metallurgical quality of the molten iron is improved, inoculation fade of the molten iron is prevented while heat insulation and slag collection are realized, a good inoculation effect is obtained, and processing properties and mechanical properties of the cylinder cover are improved; meanwhile, a fine powder inoculant turns into the valuable from the waste, which accords with policies of circular economy and low carbon economy.

Description

technical field [0001] The invention relates to a production process of a mechanical part, in particular to a molding and pouring method of a highly airtight automobile cylinder head. Background technique [0002] At present, the manufacturing level of engine block and cylinder head is one of the important symbols to measure the manufacturing level of a country, and it also represents the development level of a country's automobile industry to a large extent. Constantly improving engine power, reducing fuel consumption and reducing exhaust emissions are the internal needs of the auto industry's own development and the objective requirements of the external environment. Lost foam casting technology makes the design of such parts more flexible and highly integrated, reducing the weight of castings and improving fuel efficiency. The cylinder head has a great influence on many technical parameters of the engine, so it requires high dimensional accuracy and strict requirements o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/04
Inventor 蒋勤南彭和宜
Owner 贵州英吉尔机械制造有限公司
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