The plant resin

Compared with the usage of the phenol resin bonded sand,the usage of the natural plant resin bonded sand during the productive process of the pure copper oxygen lance tip can lower the cost and improve the products quality and the productive environment.

与酚醛树脂砂相比 ,用植物树脂砂生产氧枪喷头能够提高产品质量 ,降低生产成本 ,改善车间生产环境 ,提高企业经济效益和社会效益。

The temperature control, the viscosity controal and the effect of catalyst in the preparation process of vegetable-oil-based resin have been studied in this paper.

对以葵花子油、棉子油为原料制备印刷油墨用植物油树脂的温度控制、粘度控制及催化剂影响进行了研究。