在线亚洲日产一区二区最新版

電(dian)(dian)梯(ti)(ti)作為辦公(gong)(gong)、生活中常用到的垂直方(fang)向的運輸工具，在(zai)高層(ceng)樓房和公(gong)(gong)共場所已經成為不可(ke)或(huo)缺的建(jian)筑配(pei)備。技術的發展及人(ren)民的生活消費水平的提升(sheng)，也帶動了電(dian)(dian)梯(ti)(ti)產業的迅速發展。2020年中國電(dian)(dian)梯(ti)(ti)保有量(liang)(liang)(liang)800萬(wan)臺，占全(quan)球(qiu)電(dian)(dian)梯(ti)(ti)保有量(liang)(liang)(liang)的40％以(yi)上，2020年中國電(dian)(dian)梯(ti)(ti)產量(liang)(liang)(liang)105萬(wan)噸，占全(quan)球(qiu)電(dian)(dian)梯(ti)(ti)總產量(liang)(liang)(liang)的70％以(yi)上。受全(quan)球(qiu)疫情的影響，2020年中國電(dian)(dian)梯(ti)(ti)出口(kou)量(liang)(liang)(liang)大幅下降為7.5萬(wan)臺。

基于電梯行業需求，寶鋼自2007年開始，分別與國內知名電梯品牌廣州日立電梯、上海三菱電梯一道，聯合開發了電梯轎廂用超純鐵素體不銹鋼BX439和B443NT產品。前期三菱電梯對B443NT研磨拉絲面板開展了中性鹽霧、加速腐蝕試驗等耐蝕性評價及螺柱焊接、落料、沖孔、折邊等加工評價。評價結果表明，B443NT耐蝕性能與304相當，加工性能完全符合鈑金件流水線加工設備要求。

針對(dui)含鈦(tai)(tai)超純鐵素(su)(su)體(ti)(ti)不銹(xiu)鋼(gang)(gang)BX439、B443NT不能(neng)用(yong)(yong)(yong)于磨(mo)拋鏡面(mian)(mian)(mian)(mian)(mian)(mian)電(dian)梯(ti)板(ban)(ban)的(de)(de)問題(ti)，2014年寶(bao)(bao)鋼(gang)(gang)與中科院沈陽金(jin)屬(shu)所、三菱電(dian)梯(ti)一道，開(kai)(kai)展(zhan)了(le)(le)(le)中信-CBMM-寶(bao)(bao)鋼(gang)(gang)技術合(he)作(zuo)項目(mu)“電(dian)梯(ti)用(yong)(yong)(yong)高等(deng)級(ji)表(biao)面(mian)(mian)(mian)(mian)(mian)(mian)含鈮鐵素(su)(su)體(ti)(ti)不銹(xiu)鋼(gang)(gang)開(kai)(kai)發及(ji)關鍵(jian)(jian)技術研(yan)(yan)究”，聯合(he)開(kai)(kai)發了(le)(le)(le)可用(yong)(yong)(yong)于研(yan)(yan)磨(mo)8K的(de)(de)超純鐵素(su)(su)體(ti)(ti)不銹(xiu)鋼(gang)(gang)B443Nb。上(shang)(shang)海三菱電(dian)梯(ti)于2016年開(kai)(kai)始對(dui)寶(bao)(bao)鋼(gang)(gang)試(shi)(shi)制B443Nb樣板(ban)(ban)（BA大(da)板(ban)(ban)）開(kai)(kai)展(zhan)了(le)(le)(le)鋼(gang)(gang)板(ban)(ban)研(yan)(yan)磨(mo)、耐蝕性(xing)能(neng)和(he)加(jia)工性(xing)能(neng)測(ce)試(shi)(shi)。鏡面(mian)(mian)(mian)(mian)(mian)(mian)研(yan)(yan)磨(mo)加(jia)工結果顯示，B443Nb與304的(de)(de)鏡面(mian)(mian)(mian)(mian)(mian)(mian)板(ban)(ban)外觀效果基本(ben)一致，表(biao)明B443Nb對(dui)高質(zhi)(zhi)量表(biao)面(mian)(mian)(mian)(mian)(mian)(mian)加(jia)工的(de)(de)適應性(xing)達到了(le)(le)(le)預期的(de)(de)效果；循環鹽霧測(ce)試(shi)(shi)表(biao)明，B443Nb 8K樣品(pin)耐蝕性(xing)好于SUS304 發紋(wen)(wen)，與SUS3048K鏡面(mian)(mian)(mian)(mian)(mian)(mian)接近；加(jia)工性(xing)能(neng)方(fang)面(mian)(mian)(mian)(mian)(mian)(mian)，在(zai)鈑(ban)金(jin)件(jian)流(liu)水(shui)線(xian)上(shang)(shang)進行了(le)(le)(le)制作(zuo)電(dian)梯(ti)轎(jiao)廂(xiang)壁的(de)(de)落(luo)料(liao)、沖(chong)孔、折邊等(deng)常規加(jia)工，并(bing)對(dui)小樣進行了(le)(le)(le)激光切割，結果表(biao)明加(jia)工性(xing)能(neng)完全(quan)符合(he)鈑(ban)金(jin)件(jian)流(liu)水(shui)線(xian)加(jia)工設備(bei)要求。在(zai)鋼(gang)(gang)板(ban)(ban)測(ce)試(shi)(shi)結果全(quan)面(mian)(mian)(mian)(mian)(mian)(mian)滿足(zu)性(xing)能(neng)要求的(de)(de)基礎上(shang)(shang)，試(shi)(shi)制了(le)(le)(le)兩個(ge)電(dian)梯(ti)轎(jiao)廂(xiang)，分別考察了(le)(le)(le)鏡面(mian)(mian)(mian)(mian)(mian)(mian)、鏡面(mian)(mian)(mian)(mian)(mian)(mian)鍍(du)(du)(du)鈦(tai)(tai)、鏡面(mian)(mian)(mian)(mian)(mian)(mian)蝕刻(ke)鍍(du)(du)(du)鈦(tai)(tai)、和(he)紋(wen)(wen)鍍(du)(du)(du)鈦(tai)(tai)4種表(biao)面(mian)(mian)(mian)(mian)(mian)(mian)處(chu)理，以及(ji)鏡面(mian)(mian)(mian)(mian)(mian)(mian)、和(he)紋(wen)(wen)鍍(du)(du)(du)鈦(tai)(tai)、和(he)紋(wen)(wen)蝕刻(ke)鍍(du)(du)(du)鈦(tai)(tai)、砂(sha)紋(wen)(wen)鍍(du)(du)(du)鈦(tai)(tai)4種表(biao)面(mian)(mian)(mian)(mian)(mian)(mian)處(chu)理。從(cong)表(biao)面(mian)(mian)(mian)(mian)(mian)(mian)質(zhi)(zhi)量上(shang)(shang)看，試(shi)(shi)制的(de)(de)轎(jiao)廂(xiang)已基本(ben)覆蓋了(le)(le)(le)上(shang)(shang)海三菱電(dian)梯(ti)常用(yong)(yong)(yong)的(de)(de)不銹(xiu)鋼(gang)(gang)表(biao)面(mian)(mian)(mian)(mian)(mian)(mian)處(chu)理種類，且壁板(ban)(ban)表(biao)面(mian)(mian)(mian)(mian)(mian)(mian)質(zhi)(zhi)量令人滿意。該產(chan)(chan)品(pin)的(de)(de)成功開(kai)(kai)發，填補了(le)(le)(le)電(dian)梯(ti)鏡面(mian)(mian)(mian)(mian)(mian)(mian)板(ban)(ban)用(yong)(yong)(yong)超純鐵素(su)(su)體(ti)(ti)不銹(xiu)鋼(gang)(gang)產(chan)(chan)品(pin)的(de)(de)空白，促進了(le)(le)(le)寶(bao)(bao)鋼(gang)(gang)超純鐵素(su)(su)體(ti)(ti)不銹(xiu)鋼(gang)(gang)在(zai)超低碳氮冶(ye)(ye)煉、純凈(jing)化冶(ye)(ye)煉、熱軋輥跡表(biao)面(mian)(mian)(mian)(mian)(mian)(mian)缺陷(xian)控制等(deng)關鍵(jian)(jian)技術的(de)(de)提升(sheng)。

寶鋼生產的電梯面板用超純鐵素體不銹鋼產品耐蝕性與奧氏體不銹鋼304相當，價格比304不銹鋼(gang)更低，且價格穩定，深受電梯行業歡迎。三菱電梯對B443NT及B443Nb 鐵素體不銹鋼需求量占其不銹鋼用量的70％～75％，2014～2018年累計采購5.7萬多噸，比奧氏體不銹鋼304節省成本10619萬元。同時，節約貴重鎳金屬資源4500余噸。

酒鋼建筑裝飾用超純(chun)鐵素體材料(liao)在西奧(ao)、迅達(da)、三菱、日立電梯得到應用。