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Damp sand cast method and apparatus

A kind of equipment and sand core technology, applied in the field of casting equipment of vertical parting line, can solve the problems such as failure to avoid the quality defects of loose sand.

Inactive Publication Date: 2003-04-02
EMERSON CLIMATE TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In very low-cost vertical parting-line molds, such as a Disa mold, even the most carefully designed conventional gating systems cannot successfully avoid loose sand and sand-related damage. Quality defects

Method used

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  • Damp sand cast method and apparatus
  • Damp sand cast method and apparatus
  • Damp sand cast method and apparatus

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Embodiment Construction

[0014] The description of the general structure of the scroll member shown in the figures is not intended to limit the present invention. It should be understood by those skilled in the art that the described components are shown in a schematic manner, and that variations, modifications and improvements of such structural components are all included within the scope of the present invention. Furthermore, the invention is applicable to many different scroll configurations other than those shown in the figures.

[0015] The general structure of a scroll machine (e.g., without limitation, a scroll compressor) generally includes a crankshaft for driving (e.g., by means of a suitable motor) at least one of a pair of scroll members, One of the scroll parts and the other scroll part engaged with it perform relative circular motion. figure 1 The general components of a typical scroll machine 10 are shown. figure 1 Shown in the figure is a cylindrical sealed housing 12 having a cover...

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PUM

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Abstract

An apparatus and method for casting metallic components is disclosed. The apparatus has a vertical parting line and a gate configuration which reduces defects within the cast components.

Description

technical field [0001] The present invention relates to methods and apparatus for casting metal parts, and more particularly, to casting apparatus and methods that employ vertical parting lines that reduce the number of inclusions and defects in complex cast products. Background technique [0002] Scroll components have long been produced in iron-based or other alloys using various sand casting methods. Since, for the vast majority of applications, these castings must then be thoroughly machined to very close tolerances and must be free from detrimental defects, casting tolerances and sand quality-related issues such as Scars, inclusions, and trachoma are reduced to a minimum. These considerations tend to favor the use of premium casting methods such as shell molding, lost foam casting, and the like. Less expensive casting methods, such as the various green sand casting techniques, are also often employed, but generally speaking, they have generally only met with some degr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D47/00B22C9/08B22C9/10B22D1/00F04C18/02
CPCB22D1/007B22C9/10F04C2230/21B22C9/08F04C18/0246B22D47/00
Inventor 沃伦·G·威廉森
Owner EMERSON CLIMATE TECH INC