一、前 　言 泰弗仑在各种工业材料中的耐药品腐蚀性最好。考虑到作为无润滑压缩机的滑动材料所要求的自润滑性和耐热性也比较好,所以从1956年起首先由三国重工业公司作为无润滑压缩机的活塞环开始应用,迄今已经十多年了。泰弗仑本身也有很多缺点（热膨胀系数大,传热慢）,特别是使用寿命,约为石墨环的1/3。 First, the foreword Taifu Lun in a variety of industrial materials, the best corrosive chemicals. In view of the self-lubricating and heat-resistant properties required of sliding materials as non-lubricated compressors, it has been used for three decades as a non-lubricated compressor piston ring since 1956 and has been used for more than a decade It’s Teflon itself has many disadvantages (large coefficient of thermal expansion, slow heat transfer), especially life, about 1/3 of the graphite ring.