V8 type gray cast iron cylinder body casting pouring method

A pouring method and technology of gray cast iron, applied in the direction of mold, core, mold composition, etc., can solve problems such as easy occurrence of foaming, shrinkage cavity, long core preparation cycle, and difficulty in venting cylinder head surface, etc., to achieve The effect of increasing demoulding efficiency, shortening the preparation cycle, and eliminating the time and cost of retraining

Active Publication Date: 2013-05-29
宁波亿泰来模具有限公司
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AI Technical Summary

Problems solved by technology

However, the structure of the former sand core is more complex, which makes the core assembly cycle longer and the release rate is lower. In addition, it is difficult to vent the cylinder head surface during the pouring process, and pouring defects such as foaming and shrinkage are prone to occur, so the reject rate is relatively high. High, the production cost will also increase; while the latter has a large core assembly, which makes it difficult to position the sand core, which in turn leads to low production efficiency and high scrap rate, so the production cost is high

Method used

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  • V8 type gray cast iron cylinder body casting pouring method
  • V8 type gray cast iron cylinder body casting pouring method
  • V8 type gray cast iron cylinder body casting pouring method

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 , Figure 7 with Figure 8 As shown, a casting method of V8 gray cast iron cylinder castings is carried out by core casting, including the following technical measures:

[0027] 1) Set the pouring position of the casting: set the cavity 1 of the V8 cylinder body horizontally, and the part corresponding to the machine foot of the cavity 1 of the V8 cylinder body is located at the bottom;

[0028] 2) Set up the gating system: the gating system includes the outer gate 2, the sprue 3, the runner 4 and the inner gate 5, and its technical feature is: the outer gate 2 is located at the center of the entire gating system In the upper part, there are two runners 4, the two runners 4 are parallel to each other, and the two runners 4 are located below the machine foo...

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Abstract

The invention discloses a V8 type gray cast iron cylinder body casting pouring method which is carried out by adopting a core assembly pouring mode. The V8 type gray cast iron cylinder body casting pouring method comprises the following steps of: 1, setting a pouring position of a casting; 2, arranging a pouring system; 3, assembling a core assembly; and 4 pouring. Compared with the prior art, the V8 type gray cast iron cylinder body casting pouring method has the characteristics of relatively simple core assembly structure, high yield and low production cost.

Description

technical field [0001] The invention relates to a pouring method for a V8 gray cast iron cylinder casting. Background technique [0002] At present, the cylinder block of an automobile engine is the core component of the engine, and its structure and shape are relatively complex, which requires high casting technology; the V8 cylinder block is a special type of engine block, and its structure is more complicated than that of an in-line cylinder block. The requirements for the casting process are also higher. The pouring method of the V8 gray cast iron cylinder block castings in the prior art basically adopts the core casting method, and there are two core casting methods according to the position of the inlet gate, one is that the cylinder head surface is placed on the upper box , poured from the crankshaft seat; the other is that the cylinder head surface is in the lower box, and poured from the cylinder head surface. However, the structure of the former sand core is more...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/08B22C9/10B22C9/22
Inventor 史训鹏
Owner 宁波亿泰来模具有限公司
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