我厂投产以来,一直用以自然松林资源为原料的松油作起泡剂。为寻找一种高效的合成起泡剂代替松油,试验室于1977年7月及1978年3月两次用昆明冶金研究所研制成功的苯乙酯油代替松油进行了小型试验。在小型试验取得一定效果的基础上,1978年四 Since the plant was put into operation, it has been used as a foaming agent for pine oil, which is made from natural pine forest resources. In order to find an efficient synthetic blowing agent instead of pine oil, the laboratory conducted two small-scale experiments using phenethyl ester oil developed by Kunming Metallurgical Institute instead of pine oil twice in July 1977 and March 1978. In a small experiment to achieve a certain effect on the basis of 1978 four