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一、概述钢管张力减径(简称张减)是现代钢管生产工艺中的一项重大革新。第一台张力减径机的问世是在1932年,到四十年代后期才得到较快的发展,六十年代以来发展尤为迅速。目前世界上已有几十个国家在钢管工业中普遍采用了张减技术。其发展趋势是加大进口管径,提高出口迅度。意大利义诺森蒂公司(Innoceti)声称可以提供进口管径达250mm的
I. Overview Steel pipe tension reduction (abbreviated reduction) is a major innovation in the production process of modern steel pipe. The advent of the first tension reducer was developed rapidly in 1932 and later in the late 1940s and has been particularly rapid since the 1960s. At present, tens of countries in the world have generally adopted the reduction technology in the steel pipe industry. The development trend is to increase the import diameter, increase the rapid export. Innoceti claims that it can supply imported pipes up to 250mm in diameter