论文部分内容阅读
1、适用范围:本标准适用于: 1.1 铸铁或钢制整体环,如DIN34109和DIN70909所规定的环,以及其所引出的活塞环标准（即DIN34109和DIN70909以后编号的标准） 1.2 铸铁和撑簧组成的组合环 1.3 钢制的整体环和组合环,如钢带组合油环或钢制内撑油环。 2、有关的标准 D1N878千分表;DIN879机械式千分比较仪;DIN1924第一部份,砝码:商业用砝码和精密砝码1mg到50kg;DIN2275厚薄规;DIN4768第一部份 测量粗糙度R_e、R_z、R_（max）的电动测量仪,基础部分;DIN34109（目前尚为草案）机械制造用活塞环概述,一般要求;DIN50981（目
1, the scope of application: This standard applies to: 1.1 cast iron or steel monolithic rings, such as the ring specified in DIN34109 and DIN70909, as well as the standard of the piston ring it leads (that is, DIN34109 and DIN70909 and later numbered standards) Composition of the ring 1.3 The overall steel ring and ring combination, such as steel band oil ring or steel support oil ring. 2, the relevant standard D1N878 dial indicator; DIN879 mechanical comparator; DIN1924 the first part of the weight: commercial weights and precision weights 1mg to 50kg; DIN2275 thickness gauge; DIN4768 the first part of the rough measurement Electrical meters with degrees R_e, R_z, R_max, basic part DIN34109 (currently draft) Piston rings for machine construction General requirements, general requirements DIN50981