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13919191819首(Shou)先(Xian)将(Jiang)预(Yu)弯(Wan)边(Bian)的(De)钢(Gang)板(Ban)在(Zai)U压(Ya)力(Li)机(Ji)的(De)成(Cheng)形(Xing)模(Mo)内(Nei)压(Ya)成(Cheng)U型(Xing),(?)然(Ran)后(Hou)在(Zai)O压(Ya)力(Li)机(Ji)的(De)成(Cheng)形(Xing)模(Mo)内(Nei)再(Zai)压(Ya)成(Cheng)O形(Xing)焊(Han)接(Jie)成(Cheng)管(Guan)后(Hou)再(Zai)全(Quan)体(Ti)扩(Kuo)径(Jing)。(?)UOE法(Fa)是(Shi)当(Dang)今(Jin)世(Shi)界(Jie)上(Shang)最(Zui)抢(Qiang)先(Xian)的(De)成(Cheng)形(Xing)办(Ban)法(Fa)之(Zhi)一(Yi),(?)至(Zhi)今(Jin)世(Shi)界(Jie)上(Shang)已(Yi)有(You)这(Zhe)种(Zhong)成(Cheng)形(Xing)焊(Han)管(Guan)机(Ji)组(Zu)近(Jin)30套(Tao),(?)UOE法(Fa)以(Yi)出(Chu)产(Chan)功(Gong)率(Lu)高(Gao)和(He)产(Chan)品(Pin)质(Zhi)量(Liang)好(Hao)著(Zhu)称(Cheng),(?)但(Dan)没(Mei)备(Bei)价(Jia)值(Zhi)宝(Bao)贵(Gui),(?)出(Chu)资(Zi)规(Gui)划(Hua)大(Da)。(?) 排(Pai)辊(Gun)成(Cheng)形(Xing)机(Ji)由(You)预(Yu)成(Cheng)形(Xing)机(Ji)架(Jia)、(?)平(Ping)辊(Gun)机(Ji)架(Jia)、(?)边(Bian)缘(Yuan)曲(Qu)折(Zhe)辊(Gun)及(Ji)小(Xiao)排(Pai)辊(Gun)机(Ji)架(Jia)组(Zu)成(Cheng),(?)因(Yin)为(Wei)设(She)置(Zhi)了(Liao)许(Xu)多(Duo)相(Xiang)同(Tong)的(De)小(Xiao)排(Pai)辊(Gun),(?)使(Shi)得(De)成(Cheng)形(Xing)进(Jin)程(Cheng)中(Zhong)钢(Gang)板(Ban)边(Bian)缘(Yuan)的(De)轨(Gui)道(Dao)近(Jin)乎(Hu)是(Shi)直(Zhi)线(Xian)的(De),(?)避(Bi)免(Mian)了(Liao)"边(Bian)缘(Yuan)拉(La)伸(Shen)"表(Biao)象(Xiang)。(?)CFE法(Fa)成(Cheng)形(Xing)质(Zhi)量(Liang)好(Hao),(?)其(Qi)产(Chan)品(Pin)质(Zhi)量(Liang)与(Yu)UOF法(Fa)无(Wu)差(Cha)异(Yi)。(?)该(Gai)法(Fa)运(Yun)用(Yong)资(Zi)料(Liao)为(Wei)热(Re)辊(Gun)带(Dai)钢(Gang)卷(Juan),(?)这(Zhe)一(Yi)点(Dian)与(Yu)其(Qi)它(Ta)成(Cheng)形(Xing)法(Fa)均(Jun)不(Bu)相(Xiang)同(Tong)。(?)它(Ta)首(Shou)要(Yao)适(Shi)用(Yong)于(Yu)大(Da)批(Pi)量(Liang)、(?)单(Dan)一(Yi)种(Zhong)类(Lei)钢(Gang)管(Guan)的(De)出(Chu)产(Chan),(?)但(Dan)难(Nan)以(Yi)出(Chu)产(Chan)高(Gao)强(Qiang)度(Du)厚(Hou)壁(Bi)钢(Gang)管(Guan)及(Ji)大(Da)口(Kou)径(Jing)钢(Gang)管(Guan)。(?) 辊(Gun)弯(Wan)成(Cheng)形(Xing)法(Fa)将(Jiang)钢(Gang)板(Ban)在(Zai)三(San)辊(Gun)或(Huo)四(Si)辊(Gun)之(Zhi)间(Jian)经(Jing)屡(Lu)次(Ci)滚(Gun)压(Ya)成(Cheng)形(Xing),(?)此(Ci)种(Zhong)办(Ban)法(Fa)出(Chu)产(Chan)出(Chu)的(De)焊(Han)管(Guan)在(Zai)运(Yun)用(Yong)功(Gong)用(Yong)和(He)可(Ke)靠(Kao)性(Xing)上(Shang)均(Jun)接(Jie)近(Jin)UOE焊(Han)管(Guan)。(?)RBE法(Fa)出(Chu)资(Zi)少(Shao),(?)建(Jian)厂(Chang)快(Kuai),(?)产(Chan)值(Zhi)适(Shi)中(Zhong)且(Qie)灵(Ling)活(Huo)性(Xing)较(Jiao)大(Da),(?)对(Dui)商(Shang)场(Chang)适(Shi)应(Ying)性(Xing)强(Qiang),(?)这(Zhe)些(Xie)年(Nian)该(Gai)办(Ban)法(Fa)在(Zai)一(Yi)些(Xie)发(Fa)展(Zhan)我(Wo)****得(De)到(Dao)了(Liao)运(Yun)用(Yong)。(?)但(Dan)因(Yin)为(Wei)该(Gai)成(Cheng)形(Xing)法(Fa)成(Cheng)形(Xing)上(Shang)辊(Gun)中(Zhong)部(Bu)无(Wu)支(Zhi)撑(Cheng),(?)受(Shou)其(Qi)刚(Gang)度(Du)的(De)捆(Kun)绑(Bang),(?)成(Cheng)形(Xing)钢(Gang)管(Guan)直(Zhi)径(Jing)不(Bu)能(Neng)小(Xiao)于(Yu)508mm((?)20in)(?),(?)降(Jiang)低(Di)了(Liao)商(Shang)场(Chang)占(Zhan)有(You)率(Lu),(?)我(Wo)国(Guo)不(Bu)少(Shao)管(Guan)道(Dao)的(De)直(Zhi)径(Jing)在(Zai)508mm以(Yi)下(Xia)。(?) 首(Shou)先(Xian)在(Zai)水(Shui)压(Ya)机(Ji)上(Shang)把(Ba)钢(Gang)板(Ban)压(Ya)成(Cheng)J形(Xing),(?)两(Liang)端(Duan)压(Ya)边(Bian)后(Hou),(?)经(Jing)屡(Lu)次(Ci)冲(Chong)压(Ya)成(Cheng)形(Xing)为(Wei)C形(Xing),(?)结(Jie)束(Shu)经(Jing)半(Ban)O形(Xing)上(Shang)模(Mo)具(Ju)压(Ya)成(Cheng)O形(Xing)。(?)JCOE法(Fa)其(Qi)产(Chan)品(Pin)质(Zhi)量(Liang)与(Yu)UOE焊(Han)管(Guan)接(Jie)近(Jin),(?)而(?)作(Zuo)业(Ye)线(Xian)价(Jia)值(Zhi)远(Yuan)低(Di)于(Yu)UOE机(Ji)组(Zu),(?)但(Dan)其(Qi)出(Chu)产(Chan)功(Gong)率(Lu)低(Di)。(?)
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