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Die-casting method of automobile engine cylinder cover

A technology of automobile engine and cylinder cover, which is applied in the field of casting, and can solve the problems of air holes and slag inclusion casting in the convex cover, and achieve the effect of crystallization and uniform temperature

Active Publication Date: 2019-02-15
宁波环亚机械制造有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies in the current casting method of the cylinder cover of the automobile engine that the side pipe and the convex cover are prone to produce air holes and slag inclusion casting defects, and provide an automobile engine cylinder cover that is not easy to produce air holes and slag inclusion casting defects. Die casting method of engine cylinder cover

Method used

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  • Die-casting method of automobile engine cylinder cover

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Embodiment Construction

[0011] as attached figure 1 Shown: a kind of die-casting method of automobile engine cylinder cover, described automobile engine cylinder cover 1 is provided with upper convex cover 2 and four side pipes 3; 5. A cavity with four side tube cavities and an upper convex cover cavity; Step 1, fix the die-casting mold with mold release agent evenly sprayed in the cavity on the die-casting machine and preheat it to the set temperature; Step 2, put The smelted alloy liquid is quantitatively input into the feeding chamber of the die-casting machine; Step 3, the die-casting machine pressure head injects the alloy liquid into the cavity through the gating system for molding. The forming process includes the initial low-speed injection stage and high-speed injection stage.

[0012] There are four slag collecting bags corresponding to and communicating with the side lumens one by one.

[0013] The pouring system includes: a main runner 6, two main runners 7 respectively connected with th...

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Abstract

The invention relates to the casting field and provides a die-casting method for an automobile engine cylinder cover. According to the die-casting method for the automobile engine cylinder cover, the automobile engine cylinder cover is provided with an upper convex cover and four side pipes. A die-casting mould of the automobile engine cylinder cover is provided with a casting system, slag collecting bags and a mold cavity provided with four side pipe cavities and an upper convex cover cavity. The die-casting method comprises the following steps that firstly, the die-casting mould with the mold cavity being evenly sprayed with mould release agents is fixed on a die-casting machine and preheated to the set temperature; secondly, smelted alloy liquid is quantificationally input into a charging chamber of the die-casting machine; and thirdly, a pressure head of the die-casting machine presses the alloy liquid into the mold cavity in an injecting mode for forming through the casting system, and the forming process comprises the initial low-speed press-injecting stage and the high-speed press-injecting stage. According to the die-casting method for the automobile engine cylinder cover, the casting defects of air holes and included slag are not produced in the automobile engine cylinder cover.

Description

technical field [0001] The invention relates to casting technology, in particular to a die-casting method for an automobile engine cylinder cover. Background technique [0002] The automobile engine cylinder cover includes a main body with four side pipes and a convex cover on the upper end of the main body; the automobile engine cylinder cover has a complex structure and is usually made of a casting method; the extrusion casting method of the automobile engine cylinder cover can be obtained from the patent announcement No. CN201310721769.8 discloses a squeeze casting method for a magnesium alloy automobile engine cylinder cover; the traditional method for casting the automobile engine cylinder cover has the disadvantages that the side pipe and the convex cover are prone to produce air holes and slag casting defects, so Therefore, it is an urgent problem to design a die-casting method for an automobile engine cylinder cover that is not easy to produce air holes and slag incl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D17/22
CPCB22D17/2272
Inventor 旷文忠
Owner 宁波环亚机械制造有限公司
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