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在国际标准化组织(ISO)180多个技术委员会中,列入第一个委员会(ISO TC1)的是螺纹,英、西德等国家第一项国家标准就是螺纹,我国地质矿产部正式颁布的第一项部标准也是管材螺纹。国内在执行YB848—75《小口径钻进用钢管》标准时,地质部颁发了DZ1—78《小口径钻探管材螺纹》标准,统一规定了螺纹牙形、基本尺寸及技术要求,对金刚石钻探技术的发展起了重要的推动作用。1983年GB3423—84《金刚石岩心钻探用无缝钢管》正式发布,管材的尺寸系列较之过去已有很大变化,加之DZ1—78标准一直处于试行阶段,执行中存在着一定的紊乱现象,所以修订管材螺纹标准已成为当务之急。
Among the more than 180 technical committees of the International Organization for Standardization (ISO), the first national standard listed in the first committee (ISO TC1) is the thread, and the first national standard in the United Kingdom, West Germany and other countries is the thread. The first formally promulgated by the Ministry of Geology and Mineral Resources A department standard is pipe thread. When implementing the YB848-75 Standard for Small Diameter Drilling Pipe in China, the Ministry of Geology issued the DZ1-78 Standard for Small-diameter Drilling Pipe Threads, which stipulated the thread profile, basic dimensions and technical requirements uniformly. As for the diamond drilling technology Development has played an important role in promoting. 1983 GB3423-84 “Diamond Core Drilling Seamless Steel Tube” was officially released, the pipe size series has changed a lot compared with the past, combined with DZ1-78 standard has been in the pilot phase, the implementation of the existence of a certain disorder, so Revised pipe thread standards have become a top priority.