不銹鋼熱軋(ya)中厚板工藝技術裝備主要(yao)體現在(zai)爐卷軋(ya)機。
爐(lu)(lu)卷(juan)軋(ya)(ya)機技術始于20世紀(ji)(ji)30年(nian)代(dai)(dai),主要(yao)生產(chan)厚(hou)度3毫(hao)米以上的熱軋(ya)(ya)帶鋼。帶鋼進卷(juan)取(qu)爐(lu)(lu)的厚(hou)度為15~17毫(hao)米,爐(lu)(lu)內(nei)溫度950~1050℃,生產(chan)能力(li)20萬(wan)~30萬(wan)噸(dun)/年(nian)。20世紀(ji)(ji)50-60年(nian)代(dai)(dai)其發展(zhan)較快,至20世紀(ji)(ji)70年(nian)代(dai)(dai)全(quan)世界已建爐(lu)(lu)卷(juan)軋(ya)(ya)機約34套(tao),形成第一次(ci)發展(zhan)高潮。但由于爐(lu)(lu)卷(juan)軋(ya)(ya)機存在諸多不足,20世紀(ji)(ji)80年(nian)代(dai)(dai)初,仍在生產(chan)的爐(lu)(lu)卷(juan)軋(ya)(ya)機已不超過20套(tao)。
20世紀80年代中后期爐卷軋機復興,以生產不銹鋼為主的爐卷軋機因采用多項熱連軋機的控制技術得到長足發展,已成為不銹鋼領域的主力熱軋機。采用爐卷軋機軋制不銹鋼的主要原因為:(1)爐卷軋機前后設保溫卷取爐,適合不銹鋼等加工溫度范圍窄、難變形金屬的軋制;(2)專業化不銹帶鋼廠規模在25萬~50萬噸/年,用爐卷軋機生產能力適中,投資低,效益好;(3)現代化的爐卷軋機由于采用了厚度自動控制、板形控制、多次高壓水除鱗、快速換輥裝置等,從而保證了產品的尺寸精度、表面質量及板形等;(4)爐卷軋機在特種材料的軋制方面優勢明顯,可實現卷板品種優化。
爐(lu)(lu)卷(juan)軋(ya)(ya)(ya)機(ji)可兼作(zuo)軋(ya)(ya)(ya)制中(zhong)(zhong)(zhong)(zhong)厚(hou)板(ban)(ban)(ban)。20世紀80-90年代新建的(de)(de)(de)(de)26套軋(ya)(ya)(ya)制碳(tan)鋼(gang)(gang)(gang)不銹鋼(gang)(gang)(gang),其中(zhong)(zhong)(zhong)(zhong)約15套兼作(zuo)軋(ya)(ya)(ya)制中(zhong)(zhong)(zhong)(zhong)厚(hou)板(ban)(ban)(ban),并(bing)配備(bei)了(le)中(zhong)(zhong)(zhong)(zhong)厚(hou)板(ban)(ban)(ban)精軋(ya)(ya)(ya)線(xian)。在(zai)10套不銹鋼(gang)(gang)(gang)專(zhuan)用爐(lu)(lu)卷(juan)軋(ya)(ya)(ya)機(ji)中(zhong)(zhong)(zhong)(zhong),有5套兼作(zuo)軋(ya)(ya)(ya)制中(zhong)(zhong)(zhong)(zhong)厚(hou)板(ban)(ban)(ban),其中(zhong)(zhong)(zhong)(zhong)輥身長度最大的(de)(de)(de)(de)是(shi)(shi)瑞(rui)典(dian)阿維(wei)斯塔(Avesta)廠(chang)的(de)(de)(de)(de)2800毫米(mi)粗軋(ya)(ya)(ya)機(ji)。2003年5月我(wo)國南京鋼(gang)(gang)(gang)鐵公司與奧鋼(gang)(gang)(gang)聯簽訂合(he)同(tong)(tong),引進了(le)用卷(juan)軋(ya)(ya)(ya)工藝生(sheng)產(chan)(chan)的(de)(de)(de)(de)爐(lu)(lu)卷(juan)軋(ya)(ya)(ya)機(ji),并(bing)于2005年9月28日成功(gong)軋(ya)(ya)(ya)出第(di)一塊鋼(gang)(gang)(gang)板(ban)(ban)(ban)。同(tong)(tong)期(qi),安陽、韶(shao)關鋼(gang)(gang)(gang)鐵公司從達涅利公司引進用卷(juan)軋(ya)(ya)(ya)工藝生(sheng)產(chan)(chan)的(de)(de)(de)(de)爐(lu)(lu)卷(juan)軋(ya)(ya)(ya)機(ji),其中(zhong)(zhong)(zhong)(zhong)安鋼(gang)(gang)(gang)建設了(le)卷(juan)取(qu)(qu)爐(lu)(lu),但預留(liu)了(le)卷(juan)取(qu)(qu)機(ji),韶(shao)鋼(gang)(gang)(gang)對卷(juan)取(qu)(qu)爐(lu)(lu)和卷(juan)取(qu)(qu)機(ji)均做了(le)預留(liu)。在(zai)我(wo)國投(tou)產(chan)(chan)的(de)(de)(de)(de)3套中(zhong)(zhong)(zhong)(zhong)厚(hou)板(ban)(ban)(ban)爐(lu)(lu)卷(juan)軋(ya)(ya)(ya)機(ji)中(zhong)(zhong)(zhong)(zhong),南鋼(gang)(gang)(gang)爐(lu)(lu)卷(juan)軋(ya)(ya)(ya)機(ji)配備(bei)了(le)完整的(de)(de)(de)(de)板(ban)(ban)(ban)、卷(juan)生(sheng)產(chan)(chan)設備(bei),軋(ya)(ya)(ya)機(ji)軋(ya)(ya)(ya)制力(li)達80兆牛,可較好地實(shi)現(xian)控制軋(ya)(ya)(ya)制和控制冷卻工藝,在(zai)管線(xian)鋼(gang)(gang)(gang)生(sheng)產(chan)(chan)方面(mian)取(qu)(qu)得了(le)較好的(de)(de)(de)(de)業績。我(wo)國已建成投(tou)產(chan)(chan)的(de)(de)(de)(de)板(ban)(ban)(ban)卷(juan)軋(ya)(ya)(ya)機(ji)主要是(shi)(shi)在(zai)中(zhong)(zhong)(zhong)(zhong)等規模(mo)的(de)(de)(de)(de)鋼(gang)(gang)(gang)廠(chang),其利用爐(lu)(lu)卷(juan)軋(ya)(ya)(ya)機(ji)軋(ya)(ya)(ya)線(xian)設備(bei)少、投(tou)資省、產(chan)(chan)品市(shi)場適(shi)應面(mian)廣的(de)(de)(de)(de)特點,生(sheng)產(chan)(chan)中(zhong)(zhong)(zhong)(zhong)厚(hou)板(ban)(ban)(ban)軋(ya)(ya)(ya)機(ji)不宜軋(ya)(ya)(ya)制的(de)(de)(de)(de)薄、窄(zhai)規格中(zhong)(zhong)(zhong)(zhong)板(ban)(ban)(ban),同(tong)(tong)時生(sheng)產(chan)(chan)熱連軋(ya)(ya)(ya)機(ji)不能生(sheng)產(chan)(chan)的(de)(de)(de)(de)寬規格熱軋(ya)(ya)(ya)卷(juan)。
至德鋼(gang)業,我們根據(ju)您的實際需求,給出(chu)參考建議,為您提供高性價(jia)比的不(bu)銹(xiu)鋼(gang)管道及配(pei)件。