80~ 90年代,隨著國內的焊（hàn）管廠設備更（gèng）新和（hé）各類合資的焊管廠興（xìng）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、德國等西方發達（dá）國家（jiā）,也有來自我國台灣省,這些焊管機組以生產小直徑薄壁家具鋼管和異型管為主在機組引進的同時也引進了不（bú）少的軋輥,許多生產廠家反映隨主機帶（dài）的軋輥使用性能（néng）優於國內加工的（de）軋輥,對於這種反映（yìng）在國（guó）內焊管的同行（háng）中也（yě）早有議論，究竟原因何在，各說不一在珠江（jiāng）三角洲工作的（de）幾年（nián）中,有機會（huì）到一些合資的焊管廠參觀，見到不少從國（guó）外引進的焊管（guǎn）生產線,接觸到工（gōng）廠（chǎng）和（hé）技術人員,就一些技術（shù）問題進行（háng）過交流。有時能看到一些技術資料，有時還能到軋輥庫參觀，對軋輥（gǔn）進行較詳（xiáng）細的觀察,總的印象是,國外的同行很重視焊管的成型方式，盡可能使（shǐ）軋輥在成型中（zhōng）受力分布趨（qū）於合理,也很重視對軋輥孔型設計、配置，材料選擇及加（jiā）工方法的研究,對軋輥的見解有許多獨到之處,這無疑對保證軋（zhá）輥的質量起（qǐ）到很重要的作用。一（yī）些從國外引進的小直徑焊管機組所使用的軋輥,在材料選用、加工方法孔型設計、孔型（xíng）配（pèi）置及軋輥外形結構等方麵的特點,供國（guó）內焊管廠和軋（zhá）輥（gǔn）製造（zào）廠借鑒,以（yǐ）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.
