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提出了一种磨削抛光任意曲表面的聚氨酯弹性磨具材料。介绍了生成弹性磨具材料弹性网络的过程中的三大基本化学反应方程式,即链增反应、气泡发生反应、交链反应等;为使反应过程能稳定进行,保证产品性能,文中分析讨伦了在聚氯酯弹性磨具材料的生成过程中需要满足的四大重要的化学平衡,即反应液增长速度等于网格链增长速度、反应液粘度的变化规律应与磨料在体内的分布规律相适应、同格生成强度等于磨料和气泡重量,以及反应中的放热量等于磨料和气泡的吸热量等。根据材料生成的基本原理和实际生产情况提出了制造弹性磨具材料的配方试验基本过程和生产工艺过程。
A kind of polyurethane elastic abrasive material for grinding and polishing an arbitrary curved surface is proposed. In this paper, the three basic chemical reaction equations in the process of producing elastic abrasive elastic webs are introduced, that is, chain-increasing reaction, bubble reaction and cross-linking reaction. In order to make the reaction process stable and ensure the product performance, In the polyurethane elastic abrasive material to be generated in the process of the need to meet the four important chemical equilibrium, that the reaction liquid growth rate equal to the growth rate of the grid chain, the reaction liquid viscosity changes should be consistent with the distribution of abrasive in the body Accordance with the same generation strength is equal to the weight of the abrasive and the bubble, and the heat of reaction is equal to the heat absorption of the abrasive and bubbles and so on. According to the basic principle of material production and the actual production situation, the basic process and the production process of formula test for manufacturing elastic abrasive material are put forward.