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Precision casting device and process for eliminating molten metal bubbles during casting

A technology of molten metal and precision casting, applied in metal processing equipment, molds, mold components, etc., can solve the problems of bubbling, increased casting costs, unqualified blanks, etc., to eliminate the generation of metal bubbles, reduce casting cost, the effect of improving yield

Pending Publication Date: 2022-02-01
泰州华丰精密铸造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when investment casting is casting, when pouring molten metal into the cavity of the shell, it will be poured directly. This method will cause the molten metal to bubble up in the cavity, which will cause construction workers to fail. Determine whether the molten metal has filled the cavity. If the cavity is still filled or there are molten metal bubbles, it will lead to unqualified or defective blanks produced after the molten metal pit is cooled, resulting in low yield and increased casting costs. In view of the above problems, the present invention proposes a precision casting device and process for eliminating bubbles in molten metal during casting

Method used

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  • Precision casting device and process for eliminating molten metal bubbles during casting
  • Precision casting device and process for eliminating molten metal bubbles during casting
  • Precision casting device and process for eliminating molten metal bubbles during casting

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Example 1, such as figure 1 and figure 2 A precision casting device that eliminates the metal liquid bubble in casting, including the liquid pipe 101, the bottle body 102, and the liquid opening 103, the liquid liquid opening 101 is inverted funnel shape, the bottle body 102 lumen wall is smooth, and the body 102 The inner cavity side wall is a cylindrical structure, and the longitudinal transverse arc shape is smooth, the curve is smooth, and the liquid port 103 is disposed laterally in the outlet direction of the bottle body 102, the bottle body 102 and the solution Two-layer filter mesh 105 is provided between the mouth 102 in the mouth 102.

[0033] The liquid opening 103 is provided with a duck-type liquid tunnel 104 that is lifted at the lower end, and the liquid tunnel 104 is from 30-45 ° in the horizontal direction angle, and the effect is best in 45 °.

[0034] In the two-layer filter mesh 105, the upper filtration mesh 105 is more coarse, two-layer filter grid 105...

Embodiment 2

[0036] Example 2, such as image 3 As shown, a precision casting process that eliminates metal liquid bubbles in castings, including the following steps:

[0037] Step 1: Making a wax mold: Select quantitative low temperature white wax heating and elimination as a membrane while heats the moisture polyethylene and incorporates the mold, and stirred in the incubator of 53-65 ° C, take out, and cool, In the clean environment, the waxing machine is carried by wax according to the drawings, and the wax mold is cleaned, dry, and form a wax mold using a neutral cleaning liquid.

[0038] Step 2: Side shell: Extract 330 mesh sand, a plateau mortar made of 330 meteori sand, uniform spray 90-130 mesh sand, forming 90-130 mesh sand The surface shell, and maintain a clean environment, temperature 24 ± 2 ° C, naturally dry;

[0039]Step 3: Two-layer shell: Wipe 330 mesh sands on the surface of the surface shell, the viscosity of 23-26 MPa.s, is sprayed 90-130 mesh plateau sand, forming a second...

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Abstract

The invention provides a precision casting device and process for eliminating molten metal bubbles during casting. The precision casting process for eliminating the molten metal bubbles during casting comprises the steps of wax mold manufacturing, surface layer shell manufacturing, second layer shell manufacturing, third layer shell manufacturing, fourth layer shell manufacturing, fifth layer shell manufacturing, slurry sealing and shell forming, dewaxing, roasting, bubble-free casting and inspection processing. Particularly, during bubble-free casting, the molten metal directly hits the bottom of a cavity as little as possible through the precision casting device for eliminating molten metal bubbles during casting which comprises a liquid injection port, a kettle body and a liquid outlet, but the molten metal softly flows in the cavity through buffering of the side wall of the cavity. By means of the casting mode, metal bubbles in the cavity are eliminated, the yield is improved, and the casting cost is reduced.

Description

Technical field [0001] The present invention relates to the field of melt mold casting, and more particularly to a fine cast device and process that eliminates metal liquid bubbles in casting. Background technique [0002] The molten casting is also known as a downg casting, including pressure wax, waxing, group tree, slurry, molten wax, cast metal, post treatment, etc.. The vane casting is a wax mold to be cast as a part with wax, and then the wax mold is applied to the slurry to obtain a housing. After the shell is dried, the internal wax mold is placed in hot water, and the housing of the melted wax mold is removed, and then the metal melt is inserted from the casting port, and the parts required by the shock needle are made. . [0003] However, when the molten cast is in progress, when the metal solution is poured in the cavity of the housing, it will use a direct dumping method, such a method, which can make the metal fluid into bubbles in the cavity, resulting in a good con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/08B22C9/12B22C3/00B22C9/04B22D1/00
CPCB22C9/08B22C9/086B22C9/04B22C9/12B22C3/00B22D1/007
Inventor 王友良
Owner 泰州华丰精密铸造有限公司
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