Formula of moulding sand
A technology of formulation and molding sand, which is applied in the direction of molds, cores, casting molding equipment, etc., can solve the problems of high manufacturing cost of molding sand, difficulty in falling sand, and difficult regeneration of old sand, and achieve low cost, outstanding bonding performance, and production simple effect
Inactive Publication Date: 2018-03-09
QINGDAO TIANDI CASTING CO LTD
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Problems solved by technology
The bonding ability of molding sand is an important indicator to measure the quality of molding sand. The existing molding sand usually uses water glass as a binder to make water glass sand. Although the bonding effect is better, but because water glass is more expensive, so The manufacturing cost of molding sand 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
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Effect test
Embodiment
[0009] A kind of molding sand formulation of the present embodiment is made up of following components by weight parts:
[0010] 23 parts of clay sand, 17 parts of quartz sand, 15 parts of bentonite, 8 parts of zeolite powder, 6 parts of rosin, 5 parts of gypsum powder, and 13 parts of water; preferably, it consists of the following components in parts by weight: 19 parts of clay sand, 18 parts of quartz sand, 10-12 parts of bentonite, 6 parts of zeolite powder, 4 parts of rosin, 3 parts of gypsum powder, and 13 parts of water.
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The invention discloses a molding sand formula, which consists of the following components in parts by weight: 16-23 parts of clay sand, 17-24 parts of quartz sand, 8-15 parts of bentonite, 5-8 parts of zeolite powder, and 3-6 parts of rosin 2-5 parts of gypsum powder, 10-13 parts of water. The bonding performance of the present invention is outstanding, not only simple to manufacture, low in cost, but also suitable for secondary utilization after recovery of molding sand, greatly reducing the use cost.
Description
technical field [0001] The invention belongs to the technical field of casting, and in particular relates to a molding sand formula. Background technique [0002] Molding sand is a material used for molding in sand casting. Molding sand plays an extremely important role in casting production. The casting waste caused by poor quality of molding sand accounts for about 30-50% of the total casting waste. The bonding ability of molding sand is an important indicator to measure the quality of molding sand. The existing molding sand usually uses water glass as a binder to make water glass sand. Although the bonding effect is better, but because water glass is more expensive, so The manufacturing cost of molding sand 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. Contents of the invention [0003] In order to overcome the above-mentioned technical problems e...
Claims
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Login to View More IPC IPC(8): B22C1/00
CPCB22C1/00
Inventor 李玉敏
Owner QINGDAO TIANDI CASTING CO LTD