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A New Method and Special Device for Multi-mode Vacuum Air-Conditioned Compression Casting of Supercharger Impeller

A supercharger and impeller technology, which is applied in the field of "one-tube multi-mode" vacuum air-conditioned pressure casting of supercharger impellers, can solve the problems of low production efficiency and high production cost, and achieve the improvement of production efficiency, casting quality and elongation Improved effect

Active Publication Date: 2018-04-17
凤城市合鑫机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a new method and special device for "one tube multi-mode" vacuum pressure casting of supercharger impellers, so as to solve the problems of low production efficiency and high production cost in low pressure casting in the prior art

Method used

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  • A New Method and Special Device for Multi-mode Vacuum Air-Conditioned Compression Casting of Supercharger Impeller
  • A New Method and Special Device for Multi-mode Vacuum Air-Conditioned Compression Casting of Supercharger Impeller
  • A New Method and Special Device for Multi-mode Vacuum Air-Conditioned Compression Casting of Supercharger Impeller

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Embodiment Construction

[0030] Such as Figure 1-Figure 4 As shown, the special device for "one tube multi-mode" vacuum pressure casting of the booster impeller of the present invention mainly includes: cover plate 1, crucible 2, riser tube 3, aluminum liquid 4, positive pressure gas circuit 5, vacuum pipeline 6 , gypsum shell 7, cold iron 8, sealing ring 9, protective cover 10, etc., the specific structure is as follows:

[0031] Such as image 3 As shown, the top of the crucible 2 is provided with a cover plate 1 , the lower end of the conical liquid riser 3 extends into the aluminum liquid 4 in the crucible 2 , and the upper end of the liquid riser 3 is arranged on the cover plate 1 . A partition with holes 11 and a gypsum shell 7 are arranged on the top of the liquid riser 3 , and the liquid riser 3 and the gypsum shell 7 communicate through the through holes on the partition with holes 11 . The outer side of the gypsum shell 7 is provided with a protective cover 10, and the top of the gypsum s...

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Abstract

The invention relates to a new method and a special device for "one-tube multi-mode" vacuum air-conditioning pressure casting of a supercharger impeller, belonging to the field of casting. The device is equipped with a cover plate on the top of the crucible, the lower end of the conical riser pipe extends into the aluminum liquid in the crucible, and the upper end of the riser pipe is set on the cover plate; the top of the riser pipe is provided with a partition with holes and a gypsum shell. The riser pipe and the gypsum shell adopt one tube with multiple molds, and the riser pipe and the gypsum shell communicate through the through hole on the perforated partition; the outer side of the gypsum shell is provided with a protective cover, and the top of the gypsum shell is provided with a cooling iron , the protective cover and the cold iron are sealed by a sealing ring, and the protective cover and the cold iron form a vacuum sealing cover; the cold iron is provided with a vacuum pipeline that communicates with the inner cavity of the vacuum sealing cover where the gypsum shell is located, and the cover plate is provided with the inside of the crucible. The positive pressure air path connected with the cavity. In order to keep the process parameters of each negative pressure forming, positive pressure crystallization and solidification process unchanged, it is necessary to compensate the pressure difference between the two castings and implement automatic compensation for the height of the aluminum liquid level in the riser.

Description

technical field [0001] The invention relates to a new method and a special device for "one-tube multi-mode" vacuum air-conditioning pressure casting of a supercharger impeller, belonging to the field of casting. Background technique [0002] The turbocharger is an essential part of modern engines to increase power, save fuel and improve emissions. Among them, the cast compressor impeller is the core key part of the turbocharger, because the compressor impeller is obtained by casting. At present, the casting methods of turbocharger impellers in China are mainly vacuum casting and low-pressure casting. The process efficiency of vacuum casting is high, but the consistency of the product must be guaranteed by manual operation, and the variation is large. The cast impeller Intrinsic quality cannot fully meet customer requirements. The low-pressure casting impeller has good consistency and high internal quality, but the production efficiency is low and the production cost is high...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D18/06
Inventor 侯伟陆仁志余宝国
Owner 凤城市合鑫机械制造有限公司
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