不銹鋼管浮銹較厚,首先用錘子等敲擊手動工具除掉鋼管表面上的厚銹,使銹層脫落。然后使用鋼絲刷、鋼砂布或鏟刀等手工工具刮或磨,除掉表面上所有銹蝕層,待露出金屬本色后再用棉紗拉、刷干凈。


  動(dong)(dong)力工具為由動(dong)(dong)力驅動(dong)(dong)的(de)旋轉方式或沖擊式除銹工具,如(ru)可(ke)以使用圓盤狀的(de)鋼(gang)絲(si)刷。鋼(gang)絲(si)刷通過軟軸有電動(dong)(dong)機驅動(dong)(dong)。如(ru)圖(tu) 2-1所示,鋼(gang)絲(si)刷的(de)直徑根(gen)據不(bu)同(tong)的(de)清洗管徑而更換,清洗管段(duan)可(ke)長達12米(mi)。


圖 1.jpg


  圖(tu) 2-2 所示為離(li)(li)心(xin)式鋼(gang)管(guan)除銹機(ji),可同時清除不銹鋼(gang)管(guan)內外壁(bi)的氧化皮或(huo)疏松的銹。該機(ji)是利用離(li)(li)心(xin)力的原理制(zhi)成的。主要(yao)機(ji)件有鋼(gang)管(guan)小車、砂輪機(ji)架(jia)、傳(chuan)動機(ji)構(gou)及手動卷楊機(ji)等(deng)。


圖 2.jpg


   除銹不銹鋼管(guan)(guan)用(yong)吊(diao)車安(an)放在鋼管(guan)(guan)小(xiao)車上(shang)(shang),在小(xiao)車的尾部(bu)用(yong)鋼絲繩直接通過輕(qing)便鐵軌上(shang)(shang)的導向滑輪與手(shou)動(dong)卷楊機相連。小(xiao)車上(shang)(shang)安(an)裝(zhuang)1.7KW電動(dong)機,經減速器用(yong)鏈條帶動(dong)托(tuo)輥使管(guan)(guan)子轉動(dong),轉速為15~20r/mm。在臥裝(zhuang)砂(sha)輪機圓盤(pan)鋼絲刷(shua)的摩擦(ca)作用(yong)下(xia),去除鋼管(guan)(guan)外壁(bi)的銹蝕(shi)。臥裝(zhuang)砂(sha)輪和圓盤(pan)鋼絲刷(shua)裝(zhuang)在砂(sha)輪機架上(shang)(shang)。


  當電(dian)動(dong)(dong)機轉動(dong)(dong)時(shi),通(tong)過十字接頭帶動(dong)(dong)主(zhu)傳動(dong)(dong)軸,主(zhu)傳動(dong)(dong)軸通(tong)過 2~3 副(fu)滾珠(zhu)軸承,支撐在套管里,套管支撐在裝(zhuang)有(you)托輥的(de)(de)活動(dong)(dong)小車上,主(zhu)傳動(dong)(dong)軸的(de)(de)端部(bu)兩塊鋼絲(si)刷緊密的(de)(de)接觸管壁,摩擦管壁鐵(tie)(tie)銹,同時(shi)壓縮空氣管將(jiang)除下的(de)(de)氧化鐵(tie)(tie)銹隨時(shi)吹出管外。整個管子(zi)的(de)(de)移動(dong)(dong),進或退,是以 800~1000 mm/min的(de)(de)速度推動(dong)(dong)鋼管小車在輪軌(gui)上行駛來實現的(de)(de)。


  操(cao)作時(shi),兩(liang)(liang)手(shou)搖卷揚(yang)(yang)機,使鋼(gang)管(guan)(guan)小車移(yi)到管(guan)(guan)端,進(jin)(jin)(jin)入主(zhu)傳動(dong)(dong)(dong)軸鋼(gang)絲刷的同時(shi)開(kai)動(dong)(dong)(dong)兩(liang)(liang)電機及壓縮空氣閥(fa)門,開(kai)始除銹(xiu)(xiu)。這(zhe)時(shi)主(zhu)傳動(dong)(dong)(dong)軸的活(huo)(huo)動(dong)(dong)(dong)滾珠軸承支(zhi)撐(cheng)在不銹(xiu)(xiu)鋼(gang)管(guan)(guan)里,這(zhe)個(ge)活(huo)(huo)動(dong)(dong)(dong)滾珠軸承不管(guan)(guan)鋼(gang)管(guan)(guan)轉(zhuan)動(dong)(dong)(dong)、移(yi)動(dong)(dong)(dong)、前進(jin)(jin)(jin)或后退,它(ta)都(dou)可(ke)以(yi)四面八(ba)方隨(sui)著(zhu)轉(zhuan)動(dong)(dong)(dong),而且當作傳動(dong)(dong)(dong)軸的一(yi)(yi)個(ge)支(zhi)點。管(guan)(guan)子(zi)再(zai)向(xiang)前移(yi)動(dong)(dong)(dong)時(shi),活(huo)(huo)動(dong)(dong)(dong)門形(xing)支(zhi)架(jia)倒(dao)下,活(huo)(huo)動(dong)(dong)(dong)小車靠管(guan)(guan)子(zi)的前進(jin)(jin)(jin)推動(dong)(dong)(dong)它(ta)的前進(jin)(jin)(jin)。除銹(xiu)(xiu)到頭時(shi),手(shou)動(dong)(dong)(dong)卷揚(yang)(yang)機倒(dao)轉(zhuan),管(guan)(guan)子(zi)后退,再(zai)次除一(yi)(yi)遍銹(xiu)(xiu)。這(zhe)一(yi)(yi)過程歷時(shi)約15分鐘。


  采用(yong)離心式(shi)鋼管除銹機可(ke)比人工、噴(拋)射除銹提高(gao)工效5倍(bei),并(bing)保證清除質量(liang)。不銹鋼管表面上動力工(gong)具不(bu)能達到(dao)的地方(fang),可以用手動工(gong)具做補充處理。如果用沖擊(ji)式(shi)工(gong)具除(chu)銹(xiu)時(shi),不(bu)應(ying)造成鋼管(guan)的損(sun)傷;用旋轉式(shi)工(gong)具除(chu)銹(xiu)時(shi),不(bu)宜將表面(mian)磨(mo)得過(guo)光。