| 有机物对磷酸铝型砂的抗湿机理的初探 |
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| 引用本文： | 刘胜新,史玉芳,王秀玲. 有机物对磷酸铝型砂的抗湿机理的初探[J]. 河北科技大学学报, 2000, 21(1): 66-68 |
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| 作者姓名： | 刘胜新 史玉芳 王秀玲 |
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| 作者单位： | 1. 河北科技大学材料科学与工程系,河北石家庄,050054
2. 河北科技大学机械电子工程学院 |
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| 摘 要： | 探讨了有机物 PP改善磷酸铝砂抗湿性的机理 ,认为在稍高于软化点的温度下加热固化 ,可使有机物 PP包裹在砂粒表面 ,在一定程度上阻止了水分子进攻阳离子与“O—”之间的化学键 ,结果使磷酸铝砂的抗湿性大大提高。
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| 关 键 词： | 抗湿机理 磷酸铝 粘结剂 |
| 文章编号： | 1008-1542(2000)01-0066-03 |
| 修稿时间： | 1999-03-26 |
Inquisition on the Humidity-resistance Mechanism About Aluminum Phosphate Moulding Sand by Adding Organic Compound |
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| LIU Shengxin,SHI Yufang,WANG Xiuling. Inquisition on the Humidity-resistance Mechanism About Aluminum Phosphate Moulding Sand by Adding Organic Compound[J]. Journal of Hebei University of Science and Technology, 2000, 21(1): 66-68 |
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| Authors: | LIU Shengxin SHI Yufang WANG Xiuling |
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| Abstract: | The humidity resistance mechanism is inquired.It is considered that the organic PP can wrap on the surface of moulding sand by heating to solidify at the temperature of slightly above softening point,the attacking of water molecular at the chemical bond between cation and oxygen ion is prevented,it results that the humidity resistance of sand is improved remarkably. |
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| Keywords: | humidity resistance mechanism aluminum phosphate binder |
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