80~ 90年代,隨著國（guó）內的焊管廠設備更新和（hé）各類合資的焊管廠興建,大批國外製造的焊管機組進入國內,它們分別來自美國日本、德國等（děng）西方（fāng）發達國家,也有來自（zì）我國台灣省（shěng）,這些焊管機組以生產小直徑薄壁家具鋼管和異（yì）型管為主（zhǔ）在機組引進的同時也引進了不少的軋輥,許多生產廠家反映隨主機帶的軋輥使用性能優於國內加工的軋輥,對於這種反映在國內焊管的同行中也早有（yǒu）議（yì）論，究（jiū）竟原因何在，各說不一在珠江三角洲工作的幾年中,有機會到一些合資的（de）焊管（guǎn）廠參觀，見（jiàn）到不少從國外引進的焊管生產線,接觸到工廠和技術人員,就一些技術問題進行過交流。有時能看到（dào）一些技術資料，有時還能到軋（zhá）輥庫參觀，對軋輥（gǔn）進行較詳細的觀察,總的（de）印象是,國（guó）外的同行很重視焊管的成型方式，盡可能使軋輥在成型中（zhōng）受力分布趨（qū）於合理,也很重視對（duì）軋輥（gǔn）孔（kǒng）型設計、配置，材料選擇及（jí）加工方法的研究,對（duì）軋輥的見解有許多獨到之處,這（zhè）無疑（yí）對保證軋輥的質量起到（dào）很重要（yào）的作用。一些從國外引進的小直徑焊管機組所使用（yòng）的軋輥（gǔn）,在（zài）材料選用、加工方法孔型設計（jì）、孔型配置及軋（zhá）輥外形結構等方麵的特點,供國內焊管廠和軋輥製造廠借鑒（jiàn）,以提高我國焊管軋輥的質量。
During the 1980s and 1990s, with the renovation of domestic welded pipe plants and the construction of joint venture welded pipe plants, a large number of welded pipe sets manufactured abroad entered China. They came from developed countries such as the United States, Japan, Germany and other Western countries, as well as Taiwan Province of China. These welded pipe sets mainly produce small-diameter thin-walled furniture pipes and special-shaped pipes. At the same time, they also introduced many rollers. The manufacturer reflects that the roll performance of the main belt is better than that of the domestic processing roll. There has been a long discussion about this reflection among the domestic welded pipe professionals. What is the reason? In the years of working in the Pearl River Delta, different opinions have been expressed. During the years, they have had the opportunity to visit some joint venture welded pipe factories. They have seen many imported welded pipe production lines from abroad, contacted factories and technicians, and made some technical suggestions. Questions were exchanged. Sometimes we can see some technical data, sometimes we can visit the roll warehouse and observe the rolls in detail. The general impression is that foreign colleagues attach great importance to the forming method of welded pipe, make the force distribution of rolls in the forming process more reasonable as far as possible, and also attach great importance to the study of roll pass design, configuration, material selection and processing methods. There are many unique opinions about rolls. Undoubtedly, it plays an important role in ensuring the quality of rolls. Some rolls used in small diameter welded pipe mills imported from abroad have the characteristics of material selection, pass design of processing methods, pass configuration and roll shape structure, which can be used for reference by domestic welded pipe mills and roll mills in order to improve the quality of welded pipe rolls in China.
