Stand pillar double dead head type sand casting die

A technology of sand casting and riser type, which is applied in the field of sand casting molds with double riser type of standing column, can solve the problems of increasing the cost of casting repair, affecting the quality of castings, poor heat dissipation conditions, etc., and achieves simple structure, unobstructed feeding channel, The effect of reducing production costs

Pending Publication Date: 2019-01-29
HUSN CASTING ANHUI YINGLIU GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when there are upper and lower hot joints in the structural design of the casting, the risers commonly used in the casting process design generally place a riser on the upper and lower hot joints, but often due to the shape of the hot joint area located in the lower layer of the casting Irregular parts...

Method used

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  • Stand pillar double dead head type sand casting die

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Embodiment Construction

[0018] combined with figure 1 , the specific embodiment of the present invention is described as follows:

[0019] Such as figure 1 As shown in the figure, a sand casting mold with double risers for standing columns comprises a lower mold 1 and an upper mold 2, and the lower mold 1 is provided with a lower mold cavity 11, a lower riser neck mold cavity 12, and a lower standing column mold cavity 13. , the upper die 2 is provided with a casting upper cavity 21, an upper riser neck cavity 22, an upper station column cavity 23, a lower riser neck cavity 12, and an upper riser neck cavity 22 are all set in a circular table shape, and the lower The large end of the riser neck cavity 12 is vertically connected to the cavity 13 of the lower station column, and the small end is connected to the cavity 11 of the lower part of the casting; the large end of the cavity 22 of the upper riser neck is vertically connected to the cavity 23 of the upper column On, the small end is connected ...

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Abstract

The invention particularly relates to a stand pillar double dead head type sand casting die which comprises a lower die and an upper die. A casting lower die cavity, a lower dead head neck die cavityand a lower stand pillar die cavity are formed in the lower die. One end of the lower dead head neck die cavity is connected to the casting lower die cavity, and the other end of the lower dead head neck die cavity is perpendicularly connected to the lower stand pillar die cavity. A casting upper die cavity, an upper dead head neck die cavity and an upper stand pillar die cavity are formed in theupper die, one end of the upper dead head neck die cavity is connected to the casting upper die cavity, and the other end of the upper dead head neck die cavity is perpendicularly connected to the upper stand pillar die cavity. The top end face of the upper die is provided with a dead head, and the dead head is installed in one end of the upper stand pillar die cavity. By means of the stand pillardouble dead head type sand casting die, the structure is simple, feeding can be conducted on an upper heat joint and a lower heat joint through one dead head, a channel of heat joint feeding for a casting is smooth, the feeding pressure is large, the problem that defects of shrinkage porosity, shrinkage cavities and the like exist in an existing technology is solved, the casting quality is improved, the production cost is reduced, and the quality of a produced casting is stable.

Description

technical field [0001] The invention belongs to the technical field of sand casting moulds, in particular to a sand casting mould, which is a stand column double riser type. Background technique [0002] Due to the structure and casting parameters, the solidification time of molten iron at each point in the casting cavity is not equal, which will cause thermal stress to the casting after solidification, that is, the appearance of hot spots, which will easily cause casting deformation, Cracks, etc.; at the same time, due to the unequal cooling and solidification time, the castings will have defects such as shrinkage porosity, shrinkage cavity, cold shut, and pores. [0003] In the pouring process of existing castings, risers are generally designed at the positions of hot joints to achieve the effect of feeding. However, when there are upper and lower hot joints in the structural design of the casting, the risers commonly used in the casting process design generally place a r...

Claims

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Application Information

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IPC IPC(8): B22C9/02B22C9/08
CPCB22C9/02B22C9/088
Inventor 丁植杜应流李勇曹启稳胡学文徐锐戴平李王东俞秀枝高飞
Owner HUSN CASTING ANHUI YINGLIU GROUP
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