Forming method of cylinder cover

A cylinder head and exhaust port technology, which is used in the fields of liquid metal forming and cast iron metal material casting, can solve the problems of difficult to achieve equilibrium of casting solidification, difficult separation of molding sand and core sand, and poor fluidity, so as to avoid air entrainment and inclusion defects. , Conducive to orderly discharge, easy to operate
CN107900284AActive Publication Date: 2018-04-13贵州英吉尔机械制造有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
贵州英吉尔机械制造有限公司
Publication Date
2018-04-13

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Abstract

The invention relates to a forming method of a cylinder cover, which is simple and convenient in process and good in effect. Manufacturing of an upper outer mold shell and a lower outer mold shell isas follows: a template is preheated to 180 to 220 DEG C, a coating film naturally falls into a forming cavity formed by the template and a sand blocking frame, the template is continuously heated to 250 to 260 DEG C and heat is preserved for 680 to 760 seconds; manufacturing of gas inlet channel shell cores and gas exhausting channel shell cores is as follows: a mold cavity is preheated to 180 to250 DEG C, film coating sand naturally falls into a core box mold cavity, the mold cavity is continuously heated to 275 to 285 DEG C and heat is preserved for 50 to 70 seconds; manufacturing of cooling water cavity solid cores, a pouring cup, a straight pouring gate, a transverse-inner pouring gate, an exhausting channel side upper core base solid core and an exhausting channel side lower core base solid core is as follows: the mold cavity is preheated to 180 to 260 DEG C, the film coating sand is blown into the mold cavity, the mold cavity is continuously heated to 280 to 290 DEG C and heat is preserved for 90 to 110 seconds; a film coating sand casting type structural component is subjected to coating, drying and assembling; a casting mold is modeled; alloy is smelted and inoculation isconducted; and gravity casting, solidification and separation are conducted. The forming method of the cylinder cover is suitable for manufacturing the cylinder cover.
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Description

technical field

[0001] The invention relates to the technical field of cast iron metal material casting, in particular to a production method of an engine cylinder head casting, in particular to a casting mold for making a cylinder head, its shape and a pouring and solidification forming method, and belongs to the technical field of liquid metal forming. Background technique

[0002] The production methods of traditional engine cylinder head castings are as follows according to different materials: gravity casting of metal molds for aluminum alloy cylinder heads, low pressure casting of metal molds and production methods of solid lost foam casting; black Metal cast iron (inoculated cast iron, vermicular graphite cast iron or nodular cast iron) cylinder head uses green sand molding and coated sand core combined casting mold structure for gravity casting forming, solid lost foam casting forming and double-sided mold forming coated sand shell molding Gravity casting production ...

Claims

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