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公(gong)(gong)司是一家集生產(chan)(chan)、銷(xiao)售各(ge)種(zhong)各(ge)樣鋼(gang)(gang)(gang)(gang)材，無(wu)(wu)縫(feng)(feng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)、鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)，泵管(guan)(guan)(guan)(guan)(guan)(guan)(guan)，聲測(ce)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)，注漿管(guan)(guan)(guan)(guan)(guan)(guan)(guan)生產(chan)(chan)廠(chang)家。鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)產(chan)(chan)品(pin)規格(ge)齊全(quan)通過(guo)多(duo)年(nian)的(de)(de)(de)努力，公(gong)(gong)司遵循誠信(xin)經營，貨真價實，優質服(fu)務的(de)(de)(de)宗(zong)(zong)旨，贏得(de)(de)了用(yong)戶(hu)，拓展了市場。公(gong)(gong)司宗(zong)(zong)旨：“以質量(liang)(liang)、用(yong)戶(hu)至上、以質量(liang)(liang)和(he)科技求(qiu)發展”，本公(gong)(gong)司以先(xian)進的(de)(de)(de)工(gong)藝、優質的(de)(de)(de)產(chan)(chan)品(pin)、良好的(de)(de)(de)信(xin)譽(yu)，熱忱歡迎廣大新老客戶(hu)蒞臨指導(dao)，攜手合作(zuo)(zuo)、共(gong)創輝煌(huang)!客戶(hu)的(de)(de)(de)滿意是我們(men)永恒追求(qiu)! 我們(men)的(de)(de)(de)宗(zong)(zong)旨是：讓您省錢、省事、省心。無(wu)(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)幾何尺寸(cun)的(de)(de)(de)檢查(cha)，過(guo)去也多(duo)用(yong)人工(gong)檢查(cha)，近(jin)年(nian)來廣泛采用(yong)了自動測(ce)量(liang)(liang)儀器(qi)，如(ru)測(ce)厚(hou)儀、光脈沖測(ce)徑儀等。這些測(ce)定無(wu)(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)尺寸(cun)的(de)(de)(de)儀器(qi)，不但能用(yong)于成(cheng)品(pin)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)檢查(cha)，而(er)且還可以放(fang)在工(gong)藝線上做(zuo)為監視測(ce)量(liang)(liang)，這就(jiu)便于在軋(ya)(ya)制過(guo)程中有(you)效地、及時(shi)(shi)的(de)(de)(de)控制無(wu)(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)尺寸(cun)公(gong)(gong)差(cha)，從而(er)提高無(wu)(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)幾何尺寸(cun)的(de)(de)(de)精度(du)(du)并降低尺寸(cun)超差(cha)的(de)(de)(de)次品(pin)。 冷轎直(zhi)過(guo)程對無(wu)(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)機械性能的(de)(de)(de)影響(xiang)不如(ru)熱軋(ya)(ya)變(bian)形(xing)那么大，因為變(bian)形(xing)量(liang)(liang)較小。無(wu)(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)廠(chang)從資料和(he)生產(chan)(chan)試(shi)驗(yan)中大致得(de)(de)到如(ru)下(xia)(xia)規律： 1.冷矯(jiao)直(zhi)對無(wu)(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)強度(du)(du)極(ji)限(xian)的(de)(de)(de)影響(xiang)很(hen)小； 2.冷轎直(zhi)對屈(qu)(qu)服(fu)點(dian)的(de)(de)(de)影響(xiang)，和(he)無(wu)(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)壁(bi)厚(hou)有(you)關，無(wu)(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)壁(bi)厚(hou)6毫米以下(xia)(xia)時(shi)(shi)，屈(qu)(qu)服(fu)點(dian)上升，而(er)壁(bi)厚(hou)大于6毫米時(shi)(shi)冷轎直(zhi)使得(de)(de)金(jin)屬屈(qu)(qu)服(fu)點(dian)下(xia)(xia)降。 3.對延(yan)(yan)伸率(lv)(lv)的(de)(de)(de)影響(xiang)是，無(wu)(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)通過(guo)冷轎直(zhi)后，無(wu)(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)延(yan)(yan)伸率(lv)(lv)有(you)所下(xia)(xia)降，而(er)且管(guan)(guan)(guan)(guan)(guan)(guan)(guan)壁(bi)愈下(xia)(xia)降的(de)(de)(de)程度(du)(du)也愈大。同時(shi)(shi)和(he)矯(jiao)直(zhi)速度(du)(du)有(you)關，速度(du)(du)快，無(wu)(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)延(yan)(yan)伸率(lv)(lv)減得(de)(de)少。 4.對無(wu)(wu)縫(feng)(feng)鋼(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)硬度(du)(du)的(de)(de)(de)影響(xiang)，有(you)試(shi)驗(yan)得(de)(de)出，矯(jiao)直(zhi)薄壁(bi)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)硬度(du)(du)稍有(you)增加，但大多(duo)數情(qing)況下(xia)(xia)都是硬度(du)(du)有(you)些降低。矯(jiao)直(zhi)過(guo)程中存(cun)在著加工(gong)硬化，不硬化反(fan)而(er)軟化可能是反(fan)復彎曲(qu)作(zuo)(zuo)用(yong)的(de)(de)(de)結果。

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