廢銅回收的處理方法 廢銅的5種類型,實際上所有的廢銅都可以再生.廢銅回收處理工藝很簡單.首先把收集的廢銅進行分揀,沒有受污染的廢銅或成分相同的銅合金可以回爐熔化后直接利用,被嚴重污染的廢銅要進一步精煉處理去除雜質;對于相互混雜的銅合金廢料,則需熔化后進行成分調整.通過這樣的再生處理,銅的物理、化學性質不受損害,使它得到完全的更新.

含銅(tong)廢碎料(liao)涉及的(de)(de)范圍較(jiao)廣,包括(kuo)紫銅(tong)、黃銅(tong)、青銅(tong)、白銅(tong)的(de)(de)廢雜料(liao),其(qi)(qi)中,紫雜銅(tong)的(de)(de)廢碎料(liao)較(jiao)多(duo),如(ru)廢舊電纜、銅(tong)管、紫銅(tong)管、棒、板(ban)、塊、帶(dai)等.按其(qi)(qi)可回收(shou)加工(gong)的(de)(de)便(bian)利(li)程度,可以分為5種(zhong)類型.

1類:

(a) 紫銅管、棒、板、塊、帶,表面干(gan)凈(jing),無油(you)泥和(he)其他黏(nian)附、夾(jia)雜(za);

(b) 各種裸銅(tong)線、短線和其他純銅(tong)廢料(liao).

2類(lei):

(a) 如第(di)l類銅廢料中混有(you)紙屑、各(ge)種絕緣材料、少量(liang)油泥、銹垢(gou)、雜物,但其總(zong)質量(liang)不大于l%;

(b) 直徑0.3mm以上(shang)的漆(qi)包(bao)線無污物和雜(za)物.

3類:

各(ge)種(zhong)報廢的純銅(tong)或有薄鍍鋅層的純銅(tong)電器開關、零(ling)部件.

4類:

(a) 直徑(jing)0.1-0.3mm的漆包線;

(b) 有油泥或少量(liang)其(qi)他夾雜的漆包線;

(c) 干凈、發脆的火燒線.

5類:

各種純銅水(shui)箱、蒸發器、熱(re)交換器具,但其內部不得有充填物(wu),只(zhi)允(yun)許有少量自然(ran)形成的水(shui)垢.

美(mei)國的(de)廢(fei)雜(za)銅(tong)(tong)(tong)(tong)(tong)依(yi)據純度進行分(fen)(fen)類.美(mei)國廢(fei)雜(za)金屬再(zai)生研究所甚(shen)至把銅(tong)(tong)(tong)(tong)(tong)及(ji)其(qi)合金細(xi)分(fen)(fen)為53類.通(tong)常(chang)把含(han)cu量(liang)大于99%的(de)銅(tong)(tong)(tong)(tong)(tong)材叫作1號銅(tong)(tong)(tong)(tong)(tong),可以(yi)直(zhi)接重(zhong)熔和使用(yong),不(bu)要(yao)求進一步加工;銅(tong)(tong)(tong)(tong)(tong)含(han)量(liang)較低(di)為94.5%的(de)銅(tong)(tong)(tong)(tong)(tong)叫作2號銅(tong)(tong)(tong)(tong)(tong),在以(yi)金屬銅(tong)(tong)(tong)(tong)(tong)的(de)形態使用(yong)之(zhi)前,必須重(zhong)熔;其(qi)他常(chang)見的(de)分(fen)(fen)類等(deng)級還(huan)包括加鉛黃(huang)(huang)(huang)銅(tong)(tong)(tong)(tong)(tong)、黃(huang)(huang)(huang)銅(tong)(tong)(tong)(tong)(tong)與低(di)鋅黃(huang)(huang)(huang)銅(tong)(tong)(tong)(tong)(tong)、彈殼黃(huang)(huang)(huang)銅(tong)(tong)(tong)(tong)(tong)、汽車散熱片、高(gao)銅(tong)(tong)(tong)(tong)(tong)黃(huang)(huang)(huang)銅(tong)(tong)(tong)(tong)(tong)(紅色黃(huang)(huang)(huang)銅(tong)(tong)(tong)(tong)(tong))、高(gao)速切(qie)削(xue)黃(huang)(huang)(huang)銅(tong)(tong)(tong)(tong)(tong)等(deng),可以(yi)以(yi)同成分(fen)(fen)合金的(de)形式用(yong)于重(zhong)新加工銅(tong)(tong)(tong)(tong)(tong)制品.