鋼波紋管液壓(ya)成形(xing)(xing)工藝的(de)樞紐是階段的(de)成形(xing)(xing)壓(ya)力和脹(zhang)形(xing)(xing)程(cheng)度(du)(du)，通過成形(xing)(xing)壓(ya)力來控制脹(zhang)形(xing)(xing)程(cheng)度(du)(du)，假如(ru)脹(zhang)形(xing)(xing)程(cheng)度(du)(du)較大(da)，管(guan)材(cai)輕易破裂，假如(ru)脹(zhang)形(xing)(xing)程(cheng)度(du)(du)太小，脹(zhang)形(xing)(xing)沒有起(qi)到軸向定(ding)位作用，成型之(zhi)后的(de)波紋管(guan)波紋不(bu)齊(qi)，成品(pin)率比較低。

拼裝鋼波紋管的運輸優勢還是非常明顯的

鋼波紋管液(ye)壓(ya)(ya)(ya)成(cheng)型屬于極(ji)薄(bo)壁管(guan)(guan)(guan)(guan)的(de)(de)(de)(de)液(ye)壓(ya)(ya)(ya)復(fu)合脹(zhang)(zhang)(zhang)(zhang)(zhang)形(xing)(xing)(xing)(xing)(xing)，是(shi)軟(ruan)模(mo)(mo)成(cheng)型技術的(de)(de)(de)(de)一(yi)種。它以液(ye)壓(ya)(ya)(ya)流體(ti)為軟(ruan)模(mo)(mo)，以成(cheng)形(xing)(xing)(xing)(xing)(xing)凹模(mo)(mo)為硬模(mo)(mo)。液(ye)壓(ya)(ya)(ya)脹(zhang)(zhang)(zhang)(zhang)(zhang)形(xing)(xing)(xing)(xing)(xing)主(zhu)要(yao)有(you)兩個階(jie)段(duan)，脹(zhang)(zhang)(zhang)(zhang)(zhang)形(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)階(jie)段(duan)，管(guan)(guan)(guan)(guan)材(cai)(cai)兩端和(he)成(cheng)型模(mo)(mo)具(ju)都固定不動(dong)，極(ji)薄(bo)壁管(guan)(guan)(guan)(guan)在(zai)(zai)(zai)模(mo)(mo)具(ju)的(de)(de)(de)(de)限制和(he)管(guan)(guan)(guan)(guan)內的(de)(de)(de)(de)液(ye)體(ti)壓(ya)(ya)(ya)力的(de)(de)(de)(de)作用(yong)下(xia)進行徑(jing)向(xiang)膨(peng)脹(zhang)(zhang)(zhang)(zhang)(zhang)。脹(zhang)(zhang)(zhang)(zhang)(zhang)形(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)程度(du)比較小，其目(mu)的(de)(de)(de)(de)就是(shi)讓成(cheng)形(xing)(xing)(xing)(xing)(xing)模(mo)(mo)具(ju)在(zai)(zai)(zai)管(guan)(guan)(guan)(guan)材(cai)(cai)上軸(zhou)(zhou)向(xiang)定位。成(cheng)形(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)第二(er)個階(jie)段(duan)，管(guan)(guan)(guan)(guan)材(cai)(cai)在(zai)(zai)(zai)內壓(ya)(ya)(ya)力和(he)軸(zhou)(zhou)向(xiang)壓(ya)(ya)(ya)力的(de)(de)(de)(de)復(fu)合作用(yong)下(xia)，進一(yi)步(bu)進行脹(zhang)(zhang)(zhang)(zhang)(zhang)形(xing)(xing)(xing)(xing)(xing)。在(zai)(zai)(zai)此階(jie)段(duan)，在(zai)(zai)(zai)軸(zhou)(zhou)向(xiang)力的(de)(de)(de)(de)作用(yong)下(xia)，成(cheng)形(xing)(xing)(xing)(xing)(xing)凹模(mo)(mo)進行軸(zhou)(zhou)向(xiang)移動(dong)，知道各個成(cheng)形(xing)(xing)(xing)(xing)(xing)凹模(mo)(mo)相互貼合在(zai)(zai)(zai)一(yi)起(qi)，成(cheng)形(xing)(xing)(xing)(xing)(xing)完畢。在(zai)(zai)(zai)此階(jie)段(duan)，管(guan)(guan)(guan)(guan)材(cai)(cai)軸(zhou)(zhou)向(xiang)縮短(duan)，在(zai)(zai)(zai)波(bo)(bo)紋(wen)處徑(jing)向(xiang)擴(kuo)脹(zhang)(zhang)(zhang)(zhang)(zhang)。根(gen)據金屬成(cheng)形(xing)(xing)(xing)(xing)(xing)原理，金屬在(zai)(zai)(zai)塑性成(cheng)形(xing)(xing)(xing)(xing)(xing)過程中體(ti)積(ji)不變，波(bo)(bo)紋(wen)管(guan)(guan)(guan)(guan)徑(jing)向(xiang)擴(kuo)脹(zhang)(zhang)(zhang)(zhang)(zhang)需要(yao)的(de)(de)(de)(de)材(cai)(cai)料通過管(guan)(guan)(guan)(guan)材(cai)(cai)軸(zhou)(zhou)向(xiang)縮短(duan)來增補(bu)，而軸(zhou)(zhou)向(xiang)加(jia)壓(ya)(ya)(ya)的(de)(de)(de)(de)脹(zhang)(zhang)(zhang)(zhang)(zhang)形(xing)(xing)(xing)(xing)(xing)就是(shi)促進這種材(cai)(cai)料轉移的(de)(de)(de)(de)順利進行。軸(zhou)(zhou)向(xiang)加(jia)壓(ya)(ya)(ya)的(de)(de)(de)(de)脹(zhang)(zhang)(zhang)(zhang)(zhang)形(xing)(xing)(xing)(xing)(xing)可(ke)以進步(bu)材(cai)(cai)料的(de)(de)(de)(de)脹(zhang)(zhang)(zhang)(zhang)(zhang)形(xing)(xing)(xing)(xing)(xing)程度(du)，可(ke)以成(cheng)形(xing)(xing)(xing)(xing)(xing)波(bo)(bo)紋(wen)深(shen)度(du)較深(shen)的(de)(de)(de)(de)波(bo)(bo)紋(wen)管(guan)(guan)(guan)(guan)，可(ke)以進步(bu)波(bo)(bo)紋(wen)管(guan)(guan)(guan)(guan)的(de)(de)(de)(de)成(cheng)形(xing)(xing)(xing)(xing)(xing)率。同時(shi)液(ye)壓(ya)(ya)(ya)成(cheng)形(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)變形(xing)(xing)(xing)(xing)(xing)也比較平均，并能(neng)獲得良(liang)(liang)好(hao)的(de)(de)(de)(de)表面質量。正由于具(ju)有(you)上述良(liang)(liang)多長處，液(ye)壓(ya)(ya)(ya)成(cheng)形(xing)(xing)(xing)(xing)(xing)才能(neng)成(cheng)為金屬波(bo)(bo)紋(wen)管(guan)(guan)(guan)(guan)成(cheng)形(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)主(zhu)流技術。

實(shi)踐證實(shi)，用(yong)鋼波紋管(guan)涵(han)(han)代替鋼筋混(hun)凝(ning)土進行(xing)涵(han)(han)洞施(shi)工，不(bu)管(guan)從施(shi)工周期、施(shi)工造價、環保(bao)意(yi)義等方面都有其不(bu)可相比(bi)的優勝性(xing)，且(qie)用(yong)金屬波紋管(guan)涵(han)(han)進行(xing)涵(han)(han)洞施(shi)工，可大大進步(bu)道路行(xing)車的恬靜度與安全(quan)性(xing)，避(bi)免道路中(zhong)涵(han)(han)洞的“錯臺跳車”現形，有利(li)于解決西北地區嚴寒霜凍(dong)對砼管(guan)涵(han)(han)結構的破壞(huai)題目。

跟著鋼(gang)波(bo)(bo)紋管涵(han)(han)(han)在世(shi)界各(ge)地的(de)安(an)裝使(shi)用(yong)，證(zheng)實了(le)此種(zhong)結構在各(ge)種(zhong)使(shi)用(yong)情況下的(de)通用(yong)性。在我(wo)國(guo)改革開(kai)放后，深圳及(ji)大同(tong)煤礦(kuang)開(kai)始從國(guo)外入口成品鋼(gang)波(bo)(bo)紋管涵(han)(han)(han)進(jin)行(xing)涵(han)(han)(han)洞(dong)施工(gong)。之后，上(shang)海市(shi)公(gong)路(lu)治(zhi)理(li)處、上(shang)海市(shi)政工(gong)程設(she)計(ji)研究院、上(shang)海同(tong)濟大學對鋼(gang)波(bo)(bo)紋管涵(han)(han)(han)進(jin)行(xing)了(le)動(dong)、靜載試(shi)驗，結果表明能知(zhi)足設(she)計(ji)使(shi)用(yong)要求，填(tian)補了(le)海內的(de)空(kong)缺(que)，且迅速得到(dao)(dao)推廣應用(yong)。幕(mu)墻一貫反應用(yong)于我(wo)國(guo)各(ge)地公(gong)路(lu)舉(ju)措(cuo)措(cuo)施建設(she)當中(zhong)(zhong)。鋼(gang)波(bo)(bo)紋管涵(han)(han)(han)投(tou)入到(dao)(dao)了(le)青(qing)海公(gong)路(lu)施工(gong)當中(zhong)(zhong)，三年的(de)實踐證(zheng)實，鋼(gang)波(bo)(bo)紋管涵(han)(han)(han)在北方嚴寒地區完(wan)全符合公(gong)路(lu)建設(she)當中(zhong)(zhong)的(de)涵(han)(han)(han)洞(dong)施工(gong)要求。

拼裝鋼波紋管

在公(gong)路施(shi)工(gong)(gong)中(zhong)，應用鋼(gang)(gang)波(bo)(bo)紋(wen)(wen)管(guan)涵(han)(han)(han)代替(ti)鋼(gang)(gang)筋混(hun)凝土進行(xing)(xing)涵(han)(han)(han)洞施(shi)工(gong)(gong)的(de)歷史已經有100多年了(le)。1896年，美國(guo)率提高(gao)(gao)前輩行(xing)(xing)鋼(gang)(gang)波(bo)(bo)紋(wen)(wen)管(guan)涵(han)(han)(han)通道、涵(han)(han)(han)管(guan)的(de)可行(xing)(xing)性研究(jiu)。其(qi)后，在美國(guo)、加拿大、澳大利(li)亞等國(guo)的(de)公(gong)路建設(she)中(zhong)，均(jun)采用了(le)鋼(gang)(gang)波(bo)(bo)紋(wen)(wen)管(guan)涵(han)(han)(han)進行(xing)(xing)涵(han)(han)(han)洞的(de)施(shi)工(gong)(gong)。1990年，日本高(gao)(gao)速(su)公(gong)路設(she)計，規范制(zhi)定了(le)鋼(gang)(gang)波(bo)(bo)紋(wen)(wen)管(guan)涵(han)(han)(han)設(she)計技術規范。

拼裝鋼(gang)(gang)(gang)波(bo)紋(wen)(wen)(wen)管是將薄鋼(gang)(gang)(gang)板板面(mian)壓成(cheng)波(bo)紋(wen)(wen)(wen)后，卷制成(cheng)管節，可(ke)(ke)以增加(jia)管節的(de)(de)剛度和(he)對(dui)管軸(zhou)壓力(li)的(de)(de)抵擋強度；出(chu)廠前采(cai)(cai)用(yong)(yong)熱浸鍍鋅工(gong)(gong)(gong)藝和(he)施(shi)(shi)工(gong)(gong)(gong)現場(chang)噴涂瀝青，雙層防腐(fu)處理保(bao)證了使用(yong)(yong)壽命(ming)；用(yong)(yong)此種管節修(xiu)建的(de)(de)涵(han)洞(dong)(dong)(dong)被稱為鋼(gang)(gang)(gang)波(bo)紋(wen)(wen)(wen)管涵(han)。實踐(jian)證實，用(yong)(yong)鋼(gang)(gang)(gang)波(bo)紋(wen)(wen)(wen)管涵(han)代替(ti)鋼(gang)(gang)(gang)筋混凝(ning)土進行涵(han)洞(dong)(dong)(dong)施(shi)(shi)工(gong)(gong)(gong)，不(bu)管從施(shi)(shi)工(gong)(gong)(gong)周期、施(shi)(shi)工(gong)(gong)(gong)造價、環保(bao)意義等方面(mian)都有(you)其(qi)不(bu)可(ke)(ke)相(xiang)比的(de)(de)優勝性(xing)，且用(yong)(yong)鋼(gang)(gang)(gang)波(bo)紋(wen)(wen)(wen)管涵(han)進行涵(han)洞(dong)(dong)(dong)施(shi)(shi)工(gong)(gong)(gong)，可(ke)(ke)大大進步道路行車的(de)(de)恬(tian)靜度與安全性(xing)，避免道路中涵(han)洞(dong)(dong)(dong)的(de)(de)“錯(cuo)臺跳車”現形，有(you)利(li)于解決西北地區嚴寒霜(shuang)凍對(dui)砼(tong)管涵(han)結構的(de)(de)破壞題目。公(gong)路工(gong)(gong)(gong)程的(de)(de)涵(han)洞(dong)(dong)(dong)一(yi)般(ban)采(cai)(cai)用(yong)(yong)鋼(gang)(gang)(gang)筋混凝(ning)土制作。現采(cai)(cai)用(yong)(yong)鋼(gang)(gang)(gang)波(bo)紋(wen)(wen)(wen)管涵(han)代替(ti)鋼(gang)(gang)(gang)筋混凝(ning)土進行涵(han)洞(dong)(dong)(dong)施(shi)(shi)工(gong)(gong)(gong)在(zai)海內時一(yi)項新技術(shu)，鋼(gang)(gang)(gang)波(bo)紋(wen)(wen)(wen)管涵(han)以其(qi)機(ji)能不(bu)亂、安裝利(li)便、有(you)利(li)環保(bao)、造價低等長處迅速在(zai)公(gong)路施(shi)(shi)工(gong)(gong)(gong)中代替(ti)了鋼(gang)(gang)(gang)筋混凝(ning)土施(shi)(shi)工(gong)(gong)(gong)的(de)(de)涵(han)洞(dong)(dong)(dong)，發展遠景非(fei)常廣闊。