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Pouring investment mold for high-temperature alloy porous seat casting and its manufacturing process

A high-temperature alloy and casting technology, applied in the field of investment casting, can solve the problems of incomplete feeding of hot joints, low casting qualification rate and process yield, consumption of metal materials, etc., so as to improve the casting qualification rate and process output. The effect of solving the loosening of castings and improving the yield of the process

Active Publication Date: 2021-01-15
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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AI Technical Summary

Problems solved by technology

[0002] A ring-shaped investment casting with multiple holes, bosses, multi-layer ring walls, and large wall thickness differences. Using traditional casting methods, it is necessary to set up multiple runners to feed all thick or hot joints. The result It is not only that the hot section has not been fully fed, but also due to the overheating of other parts of the casting caused by multiple runners, serious porosity has occurred. At the same time, because a large number of risers need to consume a lot of metal materials, the pass rate of castings and the process yield rate are very low.

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  • Pouring investment mold for high-temperature alloy porous seat casting and its manufacturing process
  • Pouring investment mold for high-temperature alloy porous seat casting and its manufacturing process
  • Pouring investment mold for high-temperature alloy porous seat casting and its manufacturing process

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[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] like Figure 1-6 shown figure 1 It is an investment mold for aero-engine bearing seat castings, which is a process for making high-temperature alloy porous seat castings. The material is K4169 alloy, and its structure is a three-layer ring wall in the upper half. The upper two intake rings have a thickness of about 20mm on the mounting side, and the lower part is the air outlet, which extends upwards to the inside of the air inlet. There are installa...

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Abstract

The invention discloses a high-temperature alloy porous seat casting pouring fired mould and a fired mould manufacturing process method thereof. The high-temperature alloy porous seat casting pouringfired mould comprises a wax mould, a casting system and cold iron. According to the characteristics of a porous seat casting, cold iron is arranged on the hole seat and a local thick part, and a top-injection type casting system is designed, so that casting looseness is solved, a great number of casting heads further can be cancelled, a casting yield is increased, and a process yield is increased.

Description

technical field [0001] The invention relates to the field of investment casting, in particular to a pouring investment mold for a high-temperature alloy porous seat casting and a manufacturing process for the investment mold. Background technique [0002] A ring-shaped investment casting with multiple holes, bosses, multi-layer ring walls, and large wall thickness differences. Using traditional casting methods, it is necessary to set up multiple runners to feed all thick or hot joints. The result It is not only that the hot joints have not been fully fed, but also due to the overheating of other parts of the casting caused by multiple runners, serious porosity has occurred. At the same time, due to the large number of risers that consume a lot of metal materials, the pass rate of castings and the process yield rate are very low. SUMMARY OF THE INVENTION [0003] In order to solve the above-mentioned technical problems, the present invention adopts a high-temperature alloy ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C7/02B22C9/08B22D27/04
CPCB22C7/02B22C9/082B22D27/04
Inventor 李波杨威张敬凯高超孙宝才
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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