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Fine casting method of dish type casting products

A product, precision casting technology, applied in the direction of casting molding equipment, casting molds, casting mold components, etc., can solve the problems of large investment in molds and equipment, high technical requirements for workers, and large processing allowances, etc., to achieve high production efficiency, The effect of solving human factors and less machining allowance

Inactive Publication Date: 2009-03-11
武胜琛兰机械制造有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As we all know, the current casting method of general castings is to make a cavity in the sand box, and then close the box for casting. Generally, there are problems such as large processing allowance of the casting product, low pass rate, and high technical requirements for workers. Precision casting either adopts steel mold, or adopts centrifugal or paraffin casting, all of which have the problem of large investment in molds and equipment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] a, prepare molding sand: add new sand to the old sand after sieving, the old sand is 95%, the new sand is 5%, then add the bentonite of total sand amount 3%, carry out mixing and grinding under the condition that the water content is 7-8% Mix sand for 20 minutes to become molding sand;

[0019] b. Place the bottom sand box flat on the molding machine formwork workbench, add molding sand after firm positioning and reliable positioning, and place the bottom sand box with intact vibration after starting on the flat working ground;

[0020] c. Put the well-made coated sand mold shell into the bottom sand box, make it tight and flat, and add a filter mesh;

[0021] d. Place the upper sand box on the template workbench of the molding machine for fastening and positioning, then add molding sand, turn on the machine and vibrate for 4 seconds, then turn off the machine, remove the finished upper sand box and put it on the side, and trim the upper and lower sprues to remove the f...

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PUM

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Abstract

The invention discloses a refining method for a disk casting product, and the invention is characterized in that the method is carried out according to the following steps: preparing a sand mixture; adding the sand mixture into a bottom sand box, vibrating and then arranging the sand mixture on a flat working ground; arranging a prepared membrane-coated sand mixture shell into the bottom sand box and flatting tightly, adding a filter screen sheet and adding the sand mixture into an upper sand box, vibrating and taking out the manufactured upper sand box and arranging the upper sand box laterally; finishing an upper casting opening and a lower casting opening as well as removing the floating sand thereof; then locating and overlapping the upper sand box with the bottom sand box and screwing the fixing cards on the handles of the upper sand box and the lower sand box; casting an iron liquor and taking out a product after cooling; cleaning the sand.

Description

technical field [0001] The invention relates to a casting method, in particular to a precision casting method for disc-shaped casting products. Background technique [0002] As we all know, the current casting method of general castings is to make a cavity in the sand box, and then close the box for casting. Generally, there are problems such as large processing allowance of the casting product, low pass rate, and high technical requirements for workers. Precision casting either adopts steel moulds, or adopts centrifugal or paraffin casting, all of which have the problem of large investment in molds and equipment. Contents of the invention [0003] The object of the present invention is to provide a kind of finished product qualified rate height for overcoming the deficiencies in the prior art, machining allowance is little, and the concrete method of the investment casting method of a kind of disc casting product with few investment is: [0004] a, prepare molding sand: ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/02
Inventor 李树琛李里李建
Owner 武胜琛兰机械制造有限公司
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