Mold of lost foam casting and its casting method
A lost foam and casting technology, applied in casting molding equipment, casting molds, casting mold components, etc., can solve the problems of large processing volume, rough casting surface, large useless cost, etc., and achieve low production cost and surface roughness. Enhanced, simple design effects
Active Publication Date: 2018-11-20
NANTONG CHAODA EQUIP CO LTD
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Problems solved by technology
Disadvantages: the casting surface is rough, the processing volume is large, and the useless cost in the production process is large
Method used
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[0014] Refer to attached figure 1 , a mold for lost foam castings, which includes a runner 1, a cover box 2, a sand mold, a water pipe 4, and an air-conditioning pipe 5, the sand mold is divided into an outer sand mold 3 and an inner sand mold 6, and the upper end of the inner sand mold 6 is installed on the lower end of the lid box 2, The lower end of the cover box 2 is covered on the upper end of the outer sand mold 3, and the inner sand mold 6 is installed in the inner groove of the outer sand mold 2. Several runners 1 are opened on the cover box 2, and a mold cavity 7 is formed between the outer sand mold 3 and the inner sand mold 6. The upper end of the cavity 7 is connected to the sprue 1, and the lower end of the inner sand mold 6 has a water pipe 4 to be installed in the inner sand mold 6, and an air-conditioning pipe 5 is arranged on the inner groove of the outer sand mold 3 to be installed in the outer sand mold 3.
[0015] The outside of the water pipe 4 is coated ...
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The invention relates to a mold and a casting method of an evanescent mold casting part. The mold comprises a plurality of runners, a cover box, a sand mold, a water pipe, and a cold air pipe, wherein the sand mold comprises an outer sand mold body and an inner sand mold body; the upper end of the inner sand mold body is mounted at the lower end of the cover box; the periphery at the lower end of the cover box covers the upper end of the outer sand mold body; the inner sand mold body is mounted in a groove in the outer sand mold body; the runners are formed in the cover box; a cavity is formed between the outer sand mold body and an inner sand mold body; the upper end of the cavity is communicated with the runners; the water pipe is mounted in the lower end of the inner sand mold body; and the cold air pipe is mounted in the groove in the outer sand mold body. The mold and the casting method have the advantages that the design is simple; the use is convenient; the production cost is low; the efficiency is high; and the conventional cooling manner is replaced by sequential cooling with steam, that is, burying the pipes in the sand mold used for casting, air is blown in the casting process to achieve the effect of fast cooling of the evanescent mold casting part. As the standing till process for cooling of iron is eliminated, the roughness of a profile of the evanescent mold casting part can be greatly improved, the working allowance is low, and the production cost is greatly reduced.
Description
technical field [0001] The invention relates to the field of lost foam castings, in particular to a mold of lost foam castings and a casting method thereof. Background technique [0002] In the past, the wall thickness of lost foam castings was relatively thick, which was prone to shrinkage and porosity. The currently used method is to place chilled iron (8) on the surface of the casting to achieve rapid cooling and prevent shrinkage. figure 2 . Disadvantages: the casting surface is rough, the processing volume is large, and the useless cost in the production process is large. Contents of the invention [0003] In order to solve the above problems, the present invention proposes a mold for lost foam castings and a casting method thereof, which are simple in design, easy to use, low in production cost and high in efficiency. [0004] In order to achieve the above-mentioned purpose of the invention, the present invention proposes the following technical solutions: [000...
Claims
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IPC IPC(8): B22C9/04B22C9/08
CPCB22C9/04B22C9/082
Inventor 冯建军周福亮陆海梅
Owner NANTONG CHAODA EQUIP CO LTD