不(bu)銹(xiu)鋼冷(leng)軋板帶產品(pin)以(yi)其優(you)良的耐(nai)腐(fu)蝕性(xing)能(neng),良好的力學性(xing)能(neng)、加(jia)工性(xing)能(neng)及種類豐富的表面,成為被廣泛選用(yong)的金屬材料,廣泛應用(yong)于(yu)包括建(jian)筑(zhu)裝飾、制(zhi)品(pin)、家電(dian)(dian)、軌道交通運輸、汽(qi)車、電(dian)(dian)梯、集裝箱、太陽能(neng)、精密電(dian)(dian)子等各(ge)類民用(yong)行業和工業領域(yu)。
不(bu)(bu)(bu)(bu)銹鋼(gang)冷(leng)(leng)軋(ya)(ya)板(ban)(ban)(ban)帶(dai)(dai)產(chan)(chan)品(pin)(pin)廣泛應(ying)用(yong)(yong)于各(ge)類民用(yong)(yong)行業和工(gong)(gong)業領(ling)域,其中(zhong)建筑裝(zhuang)飾、電梯、集裝(zhuang)箱等行業的(de)(de)多(duo)數產(chan)(chan)品(pin)(pin)直(zhi)接(jie)使(shi)(shi)用(yong)(yong)冷(leng)(leng)軋(ya)(ya)加工(gong)(gong)后(hou)的(de)(de)2D、2B、BA、研磨等表(biao)面(mian)(mian),制(zhi)品(pin)(pin)、家電、軌道(dao)交(jiao)通運輸(shu)、汽車、太陽能、精(jing)密電子(zi)等行業的(de)(de)產(chan)(chan)品(pin)(pin)將冷(leng)(leng)軋(ya)(ya)表(biao)面(mian)(mian)產(chan)(chan)品(pin)(pin)經(jing)過成(cheng)型加工(gong)(gong)后(hou)直(zhi)接(jie)使(shi)(shi)用(yong)(yong)或淺度(du)研磨拋光后(hou)使(shi)(shi)用(yong)(yong)。因(yin)此,對于不(bu)(bu)(bu)(bu)銹鋼(gang)冷(leng)(leng)軋(ya)(ya)板(ban)(ban)(ban)帶(dai)(dai)表(biao)面(mian)(mian)質量要求(qiu)較高。然(ran)而,由(you)于不(bu)(bu)(bu)(bu)銹鋼(gang)冷(leng)(leng)軋(ya)(ya)板(ban)(ban)(ban)帶(dai)(dai)生(sheng)(sheng)產(chan)(chan)需經(jing)過十余道(dao)連續(xu)性生(sheng)(sheng)產(chan)(chan)工(gong)(gong)序(xu),不(bu)(bu)(bu)(bu)可(ke)避免(mian)會產(chan)(chan)生(sheng)(sheng)諸如輥(gun)印、壓(ya)入、劃(hua)傷、臟(zang)污、鱗折起皮、氧(yang)化皮、夾雜、色澤(ze)不(bu)(bu)(bu)(bu)良(liang)等表(biao)面(mian)(mian)缺(que)陷。不(bu)(bu)(bu)(bu)銹鋼(gang)冷(leng)(leng)軋(ya)(ya)板(ban)(ban)(ban)帶(dai)(dai)產(chan)(chan)品(pin)(pin)使(shi)(shi)用(yong)(yong)客戶(hu)近乎零(ling)(ling)容忍的(de)(de)高要求(qiu),對不(bu)(bu)(bu)(bu)銹鋼(gang)冷(leng)(leng)軋(ya)(ya)板(ban)(ban)(ban)帶(dai)(dai)生(sheng)(sheng)產(chan)(chan)者(zhe)提出了較高挑戰。不(bu)(bu)(bu)(bu)銹鋼(gang)冷(leng)(leng)軋(ya)(ya)板(ban)(ban)(ban)帶(dai)(dai)生(sheng)(sheng)產(chan)(chan)需經(jing)過煉鋼(gang)、熱軋(ya)(ya)等多(duo)個(ge)工(gong)(gong)序(xu)及(ji)冷(leng)(leng)軋(ya)(ya)工(gong)(gong)序(xu)的(de)(de)多(duo)道(dao)連續(xu)性生(sheng)(sheng)產(chan)(chan)環節,難以做(zuo)到零(ling)(ling)缺(que)陷。因(yin)此,在(zai)各(ge)國的(de)(de)不(bu)(bu)(bu)(bu)銹鋼(gang)冷(leng)(leng)軋(ya)(ya)板(ban)(ban)(ban)帶(dai)(dai)標(biao)準(zhun)中(zhong)對出廠產(chan)(chan)品(pin)(pin)的(de)(de)表(biao)面(mian)(mian)缺(que)陷進行了規(gui)定。在(zai)目(mu)前通用(yong)(yong)的(de)(de)不(bu)(bu)(bu)(bu)銹鋼(gang)產(chan)(chan)品(pin)(pin)中(zhong),日本冷(leng)(leng)軋(ya)(ya)不(bu)(bu)(bu)(bu)銹鋼(gang)板(ban)(ban)(ban)及(ji)鋼(gang)帶(dai)(dai)的(de)(de)標(biao)準(zhun)JIS G 4305相對外觀質量的(de)(de)要求(qiu)表(biao)述是最為詳細的(de)(de),標(biao)準(zhun)第九條對于外觀是這(zhe)樣描(miao)述的(de)(de):鋼(gang)板(ban)(ban)(ban)及(ji)鋼(gang)帶(dai)(dai)應(ying)無(wu)使(shi)(shi)用(yong)(yong)上(shang)有害(hai)的(de)(de)缺(que)陷。
但鋼帶通常沒有(you)消除缺(que)陷(xian)(xian)(xian)的(de)(de)機(ji)會,因(yin)此(ci)包含若(ruo)干(gan)不正常的(de)(de)部分。如何理解(jie)標準中對外觀檢查描述的(de)(de)這(zhe)三句話?第一,出廠的(de)(de)產(chan)(chan)品可(ke)能(neng)帶有(you)缺(que)陷(xian)(xian)(xian),但這(zhe)些缺(que)陷(xian)(xian)(xian)應不是客戶使用(yong)上(shang)有(you)害的(de)(de)缺(que)陷(xian)(xian)(xian)。第二,由于冷軋生(sheng)產(chan)(chan)的(de)(de)連(lian)續性和特殊性,不可(ke)能(neng)把有(you)缺(que)陷(xian)(xian)(xian)甚(shen)至嚴重缺(que)陷(xian)(xian)(xian)的(de)(de)部位切除掉,也可(ke)以(yi)說要生(sheng)產(chan)(chan)一卷無缺(que)陷(xian)(xian)(xian)的(de)(de)鋼帶是非常難的(de)(de)。
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