Casting method of a pressure impeller

A technology for pressing impellers and casting molds, which is applied to casting molding equipment, casting molds, and casting mold components. It can solve problems such as high mold production costs, low production efficiency, and difficult mold disassembly, so as to increase disassembly speed and reduce production. cost, productivity improvement effect

Active Publication Date: 2017-09-19
GRIMAT ENG INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to design the mold structure and the cost of mold production is high.
Especially for metal molds (such as semi-solid die-casting molds), since the blades are curved surfaces, automatic mold opening and closing cannot be realized, resulting in difficulty in mold disassembly and low production efficiency

Method used

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  • Casting method of a pressure impeller
  • Casting method of a pressure impeller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The angle between the upper edge plane 6 of the primary primary blade and the central axis 9 of the impeller is equal to 90 degrees; the angle between the upper edge plane 7 of the initial secondary blade and the central axis 9 of the impeller is equal to 90 degrees.

[0028] The upper and lower surfaces of the initial primary blade 2 and the initial secondary blade 1 of the impeller casting mold are parallel to each other, and the distance between the initial primary blade and the initial secondary blade is 5mm. The mold can be ejected synchronously in the same direction to realize automatic mold opening and closing.

Embodiment 2

[0030] The angle between the outer edge plane 5 of the primary primary blade and the central axis 9 of the impeller is equal to 95 degrees; the angle between the outer edge plane 8 of the initial secondary blade and the central axis 9 of the impeller is equal to 95 degrees.

[0031] The upper and lower surfaces of the initial primary blade 2 and the initial secondary blade 1 of the impeller casting mold are parallel to each other, and the distance between the initial primary blade and the initial secondary blade is 5mm. The mold can be ejected synchronously in the same direction to realize automatic mold opening and closing.

Embodiment 3

[0033] The angle between the upper edge plane 6 of the primary primary blade and the central axis 9 of the impeller is equal to 100 degrees; the angle between the upper edge plane 7 of the initial secondary blade and the central axis 9 of the impeller is equal to 100 degrees.

[0034] The distance between the initial primary blade and the initial secondary blade is constant from the inlet of the impeller to the outlet of the impeller. The radial distance between the lower surface of the initial primary blade 2 and the upper surface of the adjacent primary secondary blade 1 along the central axis 9 of the impeller becomes larger, and the angle between the two planes is 7 degrees.

[0035] The radial distance between the upper surface of the initial primary blade of the impeller casting mold and the upper surface of the adjacent initial secondary blade along the central axis 9 of the impeller becomes larger, and the angle between the two planes is 9 degrees.

[0036] The linear ...

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Abstract

The invention belongs to the technical field of complex parts forming, and relates to a casting method of an impeller. The casting method of the pressure impeller provided by the present invention is based on the size of the pressure impeller product when manufacturing the pressure impeller casting mold. The edge face that is plane and not combined with the impeller hub is a plane hexahedron. The secondary blade of the impeller casting mold is a hexahedron capable of containing the secondary blade of the impeller product, the upper surface and the lower surface are plane, and the edge surface not combined with the hub of the impeller is a plane. The amount of follow-up processing required for the impeller casting obtained by the casting method of the impeller provided by the present invention is far less than the amount of follow-up processing required for the rotary body of the impeller directly forged, and the automatic demoulding of the mold can be realized, ensuring excellent Under the premise of high performance, the amount of subsequent machining can be reduced, and the cost of machining can be reduced.

Description

technical field [0001] The invention belongs to the technical field of complex component forming, and relates to a casting method of a near-pressure impeller. Background technique [0002] Turbochargers are widely used in automobiles, ships, trains, airplanes, generator sets and other fields, which contribute to energy saving and emission reduction. The pressure impeller, one of the core parts of the turbocharger, has a very complex shape, a large difference in wall thickness, and the blades are mostly curved surfaces, such as figure 1 shown. Therefore, it is difficult to design the mold structure, and the mold production cost is high. Especially for metal molds (such as semi-solid die-casting molds), since the blades are curved surfaces, automatic mold opening and closing cannot be realized, resulting in difficulty in mold disassembly and low production efficiency. Contents of the invention [0003] The purpose of the present invention is to realize the casting molding...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C9/28
Inventor 朱强李大全和优锋张帆许小静
Owner GRIMAT ENG INST CO LTD
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