爐(lu)門(men)(men)(men)刀(dao)(dao)邊(bian)(bian)(bian)(bian)(bian)腹(fu)板(ban)是(shi)焦爐(lu)爐(lu)門(men)(men)(men)上的(de)(de)核心部(bu)件(jian)，起(qi)密封(feng)作(zuo)用(yong)。刀(dao)(dao)邊(bian)(bian)(bian)(bian)(bian)腹(fu)板(ban)工作(zuo)溫度在(zai)1000℃以上，且受交變(bian)(bian)載荷，容易(yi)產(chan)生(sheng)(sheng)疲勞(lao)斷裂，是(shi)焦爐(lu)爐(lu)門(men)(men)(men)部(bu)件(jian)中的(de)(de)易(yi)損件(jian)之(zhi)一，其中刀(dao)(dao)邊(bian)(bian)(bian)(bian)(bian)腹(fu)板(ban)的(de)(de)I部(bu)的(de)(de)疲勞(lao)斷裂是(shi)刀(dao)(dao)邊(bian)(bian)(bian)(bian)(bian)腹(fu)板(ban)報(bao)廢(fei)(fei)的(de)(de)主(zhu)要原因。因此(ci)，刀(dao)(dao)邊(bian)(bian)(bian)(bian)(bian)腹(fu)板(ban)使(shi)用(yong)壽命的(de)(de)高低(di)，將直接(jie)(jie)影響用(yong)戶(hu)的(de)(de)生(sheng)(sheng)產(chan)成本(ben)及(ji)生(sheng)(sheng)產(chan)效率的(de)(de)提高。改(gai)進(jin)(jin)前，刀(dao)(dao)邊(bian)(bian)(bian)(bian)(bian)腹(fu)板(ban)與(yu)爐(lu)門(men)(men)(men)本(ben)體采用(yong)M24螺(luo)(luo)栓聯接(jie)(jie)，屬(shu)于(yu)剛性聯接(jie)(jie)，工作(zuo)狀態下(xia)，為使(shi)刀(dao)(dao)邊(bian)(bian)(bian)(bian)(bian)密封(feng)面(mian)與(yu)爐(lu)門(men)(men)(men)框密封(feng)面(mian)壓(ya)緊，彈(dan)(dan)簧處(chu)于(yu)壓(ya)縮(suo)狀態，刀(dao)(dao)邊(bian)(bian)(bian)(bian)(bian)腹(fu)板(ban)的(de)(de)é部(bu)發(fa)生(sheng)(sheng)變(bian)(bian)形(xing)(xing)。當準(zhun)備出(chu)焦時摘(zhai)下(xia)爐(lu)門(men)(men)(men)，彈(dan)(dan)簧復(fu)位，使(shi)得(de)刀(dao)(dao)邊(bian)(bian)(bian)(bian)(bian)腹(fu)板(ban)的(de)(de)é部(bu)發(fa)生(sheng)(sheng)反向(xiang)變(bian)(bian)形(xing)(xing)。這樣(yang)隨(sui)著爐(lu)門(men)(men)(men)每次摘(zhai)、裝操作(zuo)，刀(dao)(dao)邊(bian)(bian)(bian)(bian)(bian)腹(fu)板(ban)的(de)(de)é部(bu)出(chu)現交變(bian)(bian)變(bian)(bian)形(xing)(xing)，加(jia)之(zhi)刀(dao)(dao)邊(bian)(bian)(bian)(bian)(bian)腹(fu)板(ban)處(chu)于(yu)高溫狀態下(xia)，容易(yi)造成é部(bu)的(de)(de)疲勞(lao)斷裂，致使(shi)整(zheng)(zheng)個刀(dao)(dao)邊(bian)(bian)(bian)(bian)(bian)腹(fu)板(ban)報(bao)廢(fei)(fei)。改(gai)進(jin)(jin)后，刀(dao)(dao)邊(bian)(bian)(bian)(bian)(bian)腹(fu)板(ban)與(yu)爐(lu)門(men)(men)(men)本(ben)體浮動聯接(jie)(jie)，彈(dan)(dan)簧壓(ya)緊刀(dao)(dao)邊(bian)(bian)(bian)(bian)(bian)，使(shi)刀(dao)(dao)邊(bian)(bian)(bian)(bian)(bian)密封(feng)面(mian)與(yu)爐(lu)門(men)(men)(men)框密封(feng)面(mian)壓(ya)緊，起(qi)到密封(feng)作(zuo)用(yong)，同(tong)時雙頭(tou)螺(luo)(luo)柱在(zai)調整(zheng)(zheng)螺(luo)(luo)塞(sai)內自(zi)由(you)滑動，使(shi)腹(fu)板(ban)處(chu)于(yu)自(zi)由(you)狀態。當出(chu)焦需要摘(zhai)下(xia)爐(lu)門(men)(men)(men)時，彈(dan)(dan)簧復(fu)位，同(tong)時雙頭(tou)螺(luo)(luo)柱隨(sui)之(zhi)下(xia)移，使(shi)刀(dao)(dao)邊(bian)(bian)(bian)(bian)(bian)腹(fu)板(ban)仍處(chu)于(yu)自(zi)由(you)狀態。由(you)于(yu)é處(chu)始終處(chu)于(yu)自(zi)由(you)狀態，沒有發(fa)生(sheng)(sheng)交變(bian)(bian)變(bian)(bian)形(xing)(xing)，因此(ci)，改(gai)進(jin)(jin)后爐(lu)門(men)(men)(men)刀(dao)(dao)邊(bian)(bian)(bian)(bian)(bian)腹(fu)板(ban)的(de)(de)使(shi)用(yong)壽命提高。
小(xiao)(xiao)(xiao)(xiao)(xiao)爐(lu)門(men)(men)(men)刀(dao)(dao)邊(bian)的(de)(de)(de)結構。小(xiao)(xiao)(xiao)(xiao)(xiao)爐(lu)門(men)(men)(men)刀(dao)(dao)邊(bian)采(cai)用(yong)(yong)(yong)敲打(da)式刀(dao)(dao)邊(bian)，小(xiao)(xiao)(xiao)(xiao)(xiao)爐(lu)門(men)(men)(men)頂壓座(zuo)與(yu)小(xiao)(xiao)(xiao)(xiao)(xiao)爐(lu)門(men)(men)(men)蓋采(cai)用(yong)(yong)(yong)分體制作后組(zu)裝(zhuang)到一(yi)(yi)起(qi)，小(xiao)(xiao)(xiao)(xiao)(xiao)爐(lu)門(men)(men)(men)刀(dao)(dao)邊(bian)需與(yu)小(xiao)(xiao)(xiao)(xiao)(xiao)爐(lu)門(men)(men)(men)蓋配作，即先(xian)將組(zu)成(cheng)小(xiao)(xiao)(xiao)(xiao)(xiao)爐(lu)門(men)(men)(men)刀(dao)(dao)邊(bian)的(de)(de)(de)不銹(xiu)鋼板壓緊(jin)到小(xiao)(xiao)(xiao)(xiao)(xiao)爐(lu)門(men)(men)(men)蓋的(de)(de)(de)四周邊(bian)，再將四角組(zu)焊，因此，小(xiao)(xiao)(xiao)(xiao)(xiao)爐(lu)門(men)(men)(men)刀(dao)(dao)邊(bian)的(de)(de)(de)互換性差；使用(yong)(yong)(yong)過程(cheng)中，敲打(da)小(xiao)(xiao)(xiao)(xiao)(xiao)爐(lu)門(men)(men)(men)頂壓座(zuo)，使小(xiao)(xiao)(xiao)(xiao)(xiao)爐(lu)門(men)(men)(men)刀(dao)(dao)邊(bian)與(yu)爐(lu)門(men)(men)(men)上的(de)(de)(de)密(mi)封(feng)(feng)面貼(tie)緊(jin)而(er)起(qi)到密(mi)封(feng)(feng)作用(yong)(yong)(yong)，密(mi)封(feng)(feng)性能(neng)較(jiao)差。改進后，小(xiao)(xiao)(xiao)(xiao)(xiao)爐(lu)門(men)(men)(men)刀(dao)(dao)邊(bian)的(de)(de)(de)結構。小(xiao)(xiao)(xiao)(xiao)(xiao)爐(lu)門(men)(men)(men)頂壓座(zuo)與(yu)小(xiao)(xiao)(xiao)(xiao)(xiao)爐(lu)門(men)(men)(men)蓋鑄為一(yi)(yi)體，制作完成(cheng)后再與(yu)小(xiao)(xiao)(xiao)(xiao)(xiao)爐(lu)門(men)(men)(men)蓋組(zu)裝(zhuang)，采(cai)用(yong)(yong)(yong)彈簧(huang)頂壓刀(dao)(dao)邊(bian)，因此，小(xiao)(xiao)(xiao)(xiao)(xiao)爐(lu)門(men)(men)(men)刀(dao)(dao)邊(bian)的(de)(de)(de)互換性好；使用(yong)(yong)(yong)過程(cheng)中，小(xiao)(xiao)(xiao)(xiao)(xiao)爐(lu)門(men)(men)(men)刀(dao)(dao)邊(bian)靠彈簧(huang)的(de)(de)(de)壓縮力自動(dong)與(yu)小(xiao)(xiao)(xiao)(xiao)(xiao)爐(lu)門(men)(men)(men)密(mi)封(feng)(feng)面貼(tie)緊(jin)而(er)起(qi)到密(mi)封(feng)(feng)作用(yong)(yong)(yong)，受力均勻，密(mi)封(feng)(feng)效(xiao)果(guo)較(jiao)好，刀(dao)(dao)邊(bian)的(de)(de)(de)使用(yong)(yong)(yong)壽命(ming)也較(jiao)長。
