铜皮包石棉板型的气缸盖垫片,由于要消耗价格较高的铜,而且性能也不太好,国外大多已淘汰,而转产以钢片为支撑材料的石棉丁腈橡胶气缸盖垫片。但纯丁腈橡胶的使用温度上限只有125℃,已无法满足现代汽车工业的要求。国外在气缸盖垫片方面进行了大量研究工作,下面作一概要的介绍。 Asbestos-type copper cylinder head gasket, due to the higher cost of copper consumption, and performance is not very good, most of the foreign countries have been eliminated, and the transfer of steel as a support material asbestos nitrile rubber cylinder head gasket. But pure nitrile rubber temperature limit of only 125 ℃, has been unable to meet the requirements of the modern automobile industry. Abroad in the cylinder head gasket a lot of research work, make a summary of the following introduction.