Modified sodium silicate sand and making method thereof
A production method and technology for modifying water, which are applied in the directions of manufacturing tools, casting molding equipment, casting molds, etc., can solve the problems of difficulty in cleaning falling sand, low strength of water glass sand, and easy cracking, and improve the collapsibility of sand molds, The effect of reducing the labor intensity of cleaning and saving cleaning costs
Inactive Publication Date: 2014-04-30
周家欣
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Problems solved by technology
[0002] There are several types of casting sand, such as clay sand, water glass sand, resin sand, etc. Among them, water glass sand has the characteristics of easy compaction, good fluidity, non-toxic and tasteless, so it is a sand mold commonly used in cast steel production, but water glass sand exists Deficiencies such as low bonding strength, easy cracks, and difficult cleaning of falling sand
Method used
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Experimental program
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Effect test
Embodiment 1
[0008] Add 5% of the water glass weight and 26% sodium polyacrylate solution to the water glass with a Baume degree of 50o, stir to make a modified water glass, and get a high-strength sand mold after stirring.
Embodiment 2
[0010] Add 8% of the water glass weight and 26% sodium polyacrylate solution to the water glass with a Baume degree of 55o, stir to make a modified water glass, and get a high-strength sand mold after stirring.
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The invention relates to a modified sodium silicate sand and making method thereof, and belongs to the chemical field. The modified sodium silicate sand and making method thereof are characterized in that: 25% sodium polyacrylate solution whose weight is 5-8% of that of soluble glass is added into 50-52 baume degree soluble glass, the solution is stirred for producing the modified soluble glass, after uniform stirring, the sand mold with high intensity is obtained. The invention has the advantages that additive is added into common soluble glass with slightly increased cost, and the sand mold intensity is improved, and the sand mold collapsibility is improved, and the cleaning labor intensity is reduced, and the cleaning cost is saved.
Description
technical field [0001] The invention relates to a modified water glass sand and a preparation method thereof, belonging to the field of chemical industry. Background technique [0002] There are several types of casting sand, such as clay sand, water glass sand, resin sand, etc. Among them, water glass sand has the characteristics of easy compaction, good fluidity, non-toxic and tasteless, so it is a sand mold commonly used in cast steel production, but water glass sand exists It has the disadvantages of low bonding strength, easy cracks, and difficult cleaning of falling sand. Contents of the invention [0003] Purpose of the present invention: provide a kind of preparation method of modified water glass sand, to improve the intensity of common water glass sand, thereby improve casting quality. [0004] Technical scheme: a kind of modified water glass sand and its preparation method, it is characterized in that: 5-8% of water glass weight is added to the water glass...
Claims
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IPC IPC(8): B22C1/02
Inventor 周家欣
Owner 周家欣
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