Formula of mixed sand
A formula and sand mixing technology, which is applied in casting molding equipment, casting molds, cores, etc., can solve the problems of high manufacturing cost of sand mixing, difficult regeneration of old sand, and difficulty in falling sand, etc., and achieves outstanding bonding performance and simple production. , the effect of low cost
Inactive Publication Date: 2018-09-18
南通峰巢工业设计有限公司
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Problems solved by technology
The bonding ability of mixed sand is an important index to measure the quality of mixed sand. The existing mixed sand usually uses water glass as the binder to make water glass sand. Although the bonding effect is better, but due to the relatively high price of water glass Expensive, so the manufacturing cost of sand mixing is also relatively high, and in the actual use of water glass sand, there will be problems such as difficulty in falling sand and difficult regeneration of old sand
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0008] A sand mixing formula of the present embodiment is composed of the following components in parts by weight: 26-33 parts of clay sand, 27-34 parts of quartz sand, 28-35 parts of bentonite, 15-18 parts of zeolite powder, 13-33 parts of rosin 16 parts, 12-15 parts of gypsum powder, 20-23 parts of water.
Embodiment 2
[0010] A sand mixing formula of the present embodiment is composed of the following components in parts by weight: 29-30 parts of clay sand, 28-29 parts of quartz sand, 20-22 parts of bentonite, 16-18 parts of zeolite powder, and 14-29 parts of rosin 15 parts, 13-15 parts of gypsum powder, 21-23 parts of water.
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The invention discloses a formula of mixed sand. The mixed sand is composed of the following components of, by weight, 26-33 parts of clay sand, 27-34 parts of quartz sand, 28-35 parts of bentonite, 15-18 parts of zeolite powder, 13-16 parts of rosin, 12-15 parts of gypsum powder and 20-23 parts of water. According to the formula, the bonding performance of the mixed sand is outstanding, manufacturing is simple, the cost is low, moreover, the formula is suitable for secondary utilization after the mixed sand is recovered, and the use cost is greatly reduced.
Description
technical field [0001] The invention belongs to the technical field of casting, and in particular relates to a sand mixing formula. Background technique [0002] Sand mixing is a material used for molding in sand casting. Sand mixing plays an extremely important role in casting production. The casting waste caused by poor quality of sand mixing accounts for about 30-50% of the total casting waste. The bonding ability of mixed sand is an important index to measure the quality of mixed sand. The existing mixed sand usually uses water glass as the binder to make water glass sand. Although the bonding effect is better, but due to the relatively high price of water glass Expensive, so the manufacturing cost of sand mixing is relatively high, and in the actual use of water glass sand, there will be problems such as difficulty in falling sand and difficult regeneration of old sand. Contents of the invention [0003] In order to overcome the above-mentioned technical problems in ...
Claims
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IPC IPC(8): B22C1/00
CPCB22C1/00
Inventor 陈霞
Owner 南通峰巢工业设计有限公司