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Method for solving loosening defect of casting of motor casing

A motor casing, loose technology, applied in mechanical equipment, engine components, rotors, etc., can solve problems such as high scrap rate, affecting product delivery schedule, and complex process

Inactive Publication Date: 2020-01-03
SHAANXI AVIATION ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology generally adopts a cumbersome riser feeding method, which is not only complicated in process, but also easily leads to a high scrap rate and affects the progress of product delivery

Method used

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  • Method for solving loosening defect of casting of motor casing
  • Method for solving loosening defect of casting of motor casing

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Embodiment Construction

[0016] In order to make the objectives, technical solutions and advantages of the implementation of the application clearer, the technical solutions in the implementation modes of the application will be described in more detail below with reference to the drawings in the implementation modes of the application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the present application. The embodiments described below by referring to the figures are exemplary and are intended to explain the present application, and should not be construed as limiting the present application. Based on the implementation manners in this application, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application. Embodiments of ...

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Abstract

The invention belongs to the technical field of casting, and relates to a method for solving the loosening defect of casting of a motor casing. The method comprises the steps that S1, the size of an internal chill is conformed according to the diameter of a to-be-machined hole oil way of the motor casing; S2, the internal chill is fixed in a mold; and S3, molten metal is poured into the mold. Theproblems that due to large structure section changes, feeding is not smooth, solidification happens, and the loosening defect is prone to happening can be effectively solved, the cost of the casing isgreatly reduced, the product percent of pass reaches 95% or above, and quality tends to be stable.

Description

technical field [0001] The present application belongs to the technical field of casting, and in particular relates to a method for solving loose casting defects of motor shells. Background technique [0002] In actual production, many parts have complex shapes and structures. Considering economy, casting and machining must be combined to form parts. Difficulties in the molding of a motor shell casting (ZL105): 1. Forming a Φ12mm oil passage; 2. The wall thickness section of the oil passage changes greatly, which is not conducive to sequential solidification; 3. The thinnest wall thickness is 4.5mm, Resulting in poor feeding channel. Therefore, it is easy to cause loosening of the structure of the casting in the thick part. The Φ12mm oil passage part of the shell is an important part, and the compactness of the structure is required. After processing, the inner wall is required to not allow any degree of loose defects. The existing technology generally adopts a cumbersome...

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Application Information

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IPC IPC(8): B22D19/00
CPCB22D19/00
Inventor 冉梦浩田拓庞雷坚
Owner SHAANXI AVIATION ELECTRICAL