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Quick cooling die for aluminum pistons produced through gravity casting

A rapid cooling and gravity casting technology, which is applied in the field of rapid cooling molds for gravity casting aluminum pistons, can solve problems such as slow cooling, achieve the effects of reducing production costs, accelerating solidification, and shortening preparation time

Active Publication Date: 2015-02-11
BINZHOU BOHAI PISTON CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, because the cooling of this part is slow, it becomes a bottleneck to improve the casting production efficiency

Method used

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  • Quick cooling die for aluminum pistons produced through gravity casting
  • Quick cooling die for aluminum pistons produced through gravity casting

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] Such as figure 1 and figure 2 As shown, the gravity casting aluminum piston rapid cooling mold is mainly composed of outer mold, inner core, top mold, lip ring 14 and pin core 8; the outer mold is composed of outer mold lower block 1 and outer mold upper block 2 Outer mold cooling channel 3 is arranged in the upper block 2 of the outer mold; there is a top mold matched with it on the top of the upper block 2 of the outer mold, and a top mold cooling channel 5 is also arranged on the top mold, which is installed horizontally on the lower block of the outer mold Pin core 8, said pin core 8 is provided with a pin core cooling channel 9, between the left and right two pin cores 8 there is an inner core closely matched with it, and a cooling channel is provided inside the inner core; except the top mold Outside the cooling passage 5, all cooling pa...

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PUM

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Abstract

The invention discloses a quick cooling die for aluminum pistons produced through gravity casting. The quick cooling die comprises an outer die upper block and an outer die lower block which are combined together vertically; the outer die upper block is provided with a cooling channel; the top of the outer die upper block is provided with a top die matched with the outer die upper block; the top die is also provided with a cooling channel; pin cores are horizontally arranged on the outer die lower block; a cooling channel is formed in each pin core; an inner core which is closely matched with two pin cores is arranged between the two pin cores left and right; a cooling channel is formed in the inner core; except the cooling channel of the top die, cooling tubes are arranged in all cooling channels. By adopting the structure, the quick cooling die for the aluminum pistons produced through gravity casting can realize modular production, the preparation time for the die can be shortened, and the capacity of piston manufacturers to respond production change is improved. Meanwhile, the die is easier to produce and maintain, and the production cost is reduced.

Description

technical field [0001] The invention relates to a rapid cooling mold for a gravity casting aluminum piston. Background technique [0002] At present, most casting aluminum piston enterprises have realized casting mechanized production. In mechanized production, the following core-pulling gravity casting technology is the most mature and reliable, and it is also the most widely used in actual production. But there are also huge problems. The lower core pull causes most of the piston blank feeding risers to be arranged above the thick head of the piston, which makes it more difficult to cool the piston top with a slow cooling rate, making it impossible to obtain a dense structure and poor mechanical properties. The key parts such as the combustion chamber, the internal cooling oil passage, and the wear-resistant insert ring are all located on the piston head. Therefore, most piston failures occur in this region. At the same time, because the cooling of this part is slow, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D15/02
CPCB22D15/02B22D15/04
Inventor 王波牟俊东朱俊奎俎训龙梁涛
Owner BINZHOU BOHAI PISTON CO LTD
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