产品类别
Product category
联系我们
Contact us
- 山东君鹏钢铁有限公司
联系人:武尚军
电话:0635-5080919
5080989
13969510788
18866523789
传真:0635-8800525
邮箱:413029429@qq.com
地址:山东省聊城市开发区汇通国际物流园A112
网址:www.chinaitrc.com
镀锌(xin)钢管(guan)分热镀锌(xin)和电镀锌(xin)两种,热镀锌(xin)镀锌(xin)层厚,具有镀层均匀,附着力强,使用寿命长(zhang)等(deng)优点(dian)。电镀锌(xin)成本(ben)低,表面不是(shi)很(hen)(hen)光(guang)滑,其本(ben)身的(de)耐腐蚀性比热镀锌(xin)管(guan)相(xiang)差很(hen)(hen)多(duo)。 镀(du)锌(xin)管工艺特点 1.对硫酸盐镀锌的优化硫(liu)酸盐(yan)(yan)镀(du)(du)(du)锌(xin)(xin)最大优(you)点(dian)是(shi)电(dian)流效率(lv)高达100% ,沉积(ji)速(su)率(lv)快(kuai),这是(shi)其(qi)他镀(du)(du)(du)锌(xin)(xin)工(gong)(gong)(gong)艺(yi)无可(ke)比拟的(de)。由于镀(du)(du)(du)层(ceng)(ceng)结晶不够细(xi)致,分散能(neng)(neng)力(li)与(yu)深(shen)镀(du)(du)(du)能(neng)(neng)力(li)较差,因而(er)只适于几何形(xing)状(zhuang)简单的(de)管材(cai)与(yu)线(xian)材(cai)等电(dian)镀(du)(du)(du)。硫(liu)酸盐(yan)(yan)电(dian)镀(du)(du)(du)锌(xin)(xin)铁合金工(gong)(gong)(gong)艺(yi)对传统的(de)硫(liu)酸盐(yan)(yan)镀(du)(du)(du)锌(xin)(xin)工(gong)(gong)(gong)艺(yi)进行优(you)化,只保留了(le)主(zhu)盐(yan)(yan)硫(liu)酸锌(xin)(xin),其(qi)余组(zu)分均舍(she)弃。在(zai)组(zu)成新(xin)工(gong)(gong)(gong)艺(yi)配(pei)方中又加(jia)入(ru)适量铁盐(yan)(yan),使(shi)原(yuan)来的(de)单金属镀(du)(du)(du)层(ceng)(ceng)形(xing)成锌(xin)(xin)铁合金镀(du)(du)(du)层(ceng)(ceng)。工(gong)(gong)(gong)艺(yi)的(de)重(zhong)组(zu),不仅发扬了(le)原(yuan)工(gong)(gong)(gong)艺(yi)电(dian)流效率(lv)高、沉积(ji)速(su)率(lv)快(kuai)的(de)优(you)点(dian),还(hai)使(shi)分散能(neng)(neng)力(li)与(yu)深(shen)镀(du)(du)(du)能(neng)(neng)力(li)得(de)到很大改善(shan),过去复杂(za)(za)件不能(neng)(neng)镀(du)(du)(du),现(xian)在(zai)简单与(yu)复杂(za)(za)件都能(neng)(neng)镀(du)(du)(du),而(er)且(qie)防护(hu)性能(neng)(neng)比单金属提(ti)高3~5倍。生产(chan)实践证(zheng)明,用于线(xian)材(cai)、管材(cai)的(de)连续电(dian)镀(du)(du)(du),镀(du)(du)(du)层(ceng)(ceng)晶粒比原(yuan)来的(de)更细(xi)化、更光亮,沉积(ji)速(su)率(lv)快(kuai)。2~3 min内(nei)镀(du)(du)(du)层(ceng)(ceng)厚(hou)度达到要求。 2.硫(liu)酸(suan)盐镀(du)锌(xin)的转化硫(liu)(liu)酸盐(yan)电(dian)镀(du)锌(xin)铁合金只保留硫(liu)(liu)酸盐(yan)镀(du)锌(xin)的主盐(yan)硫(liu)(liu)酸锌(xin),其余(yu)组分如硫(liu)(liu)酸铝(lv)、明矾(硫(liu)(liu)酸铝(lv)钾)等可在(zai)镀(du)液(ye)处(chu)理时,加(jia)入(ru)(ru)氢(qing)氧化(hua)钠使之生成(cheng)不溶性氢(qing)氧化(hua)物沉淀去除(chu);对有机添(tian)加(jia)剂,则加(jia)入(ru)(ru)粉(fen)状活性炭(tan)吸咐(fu)去除(chu)。试(shi)验(yan)表明,硫(liu)(liu)酸铝(lv)与硫(liu)(liu)酸铝(lv)钾一次性难以彻底去除(chu),对镀(du)层光亮度(du)有影响(xiang),但并不严(yan)重,可随带(dai)出消(xiao)耗(hao),此时镀(du)层光亮度(du)便(bian)可恢复(fu) 溶液(ye)通过处(chu)理,可按(an)新工艺所需成(cheng)分含量补加(jia),即完(wan)成(cheng)转化(hua)。 3.沉积速率快、防护性能优异 硫酸盐电镀(du)(du)锌铁合金工(gong)艺电流效率(lv)高达100% ,沉积(ji)速率(lv)快(kuai)是(shi)(shi)任(ren)何镀(du)(du)锌工(gong)艺无可比拟(ni)的(de)(de),精细(xi)管的(de)(de)运行(xing)速度(du)8~12 m/min,镀(du)(du)层厚度(du)平均2m/min,这是(shi)(shi)连续镀(du)(du)锌难于达到的(de)(de)。镀(du)(du)层光亮(liang)细(xi)致悦(yue)目。按国家标准(zhun)GB/T10125“人造(zao)气(qi)氛试验(yan)-盐雾试验(yan)”方(fang)法测试,72 h,镀(du)(du)层完(wan)好、无变化;96 h,镀(du)(du)层表面出现少量白锈(xiu)。 4.独特的清洁生产镀锌(xin)管采用硫酸盐电镀锌(xin)铁(tie)合金(jin)工(gong)艺,在于生(sheng)(sheng)(sheng)产(chan)(chan)线(xian)槽与(yu)槽间均穿(chuan)孔直通(tong)而溶(rong)液无(wu)任何带出或溢流。生(sheng)(sheng)(sheng)产(chan)(chan)过程各工(gong)序(xu)由循环系统组(zu)成,各槽溶(rong)液即酸碱液、电镀液、出光(guang)与(yu)钝(dun)化(hua)液等,只循环回(hui)用不(bu)(bu)向系统外渗(shen)漏或排(pai)放(fang),生(sheng)(sheng)(sheng)产(chan)(chan)线(xian)只设5个(ge)清洗(xi)槽,采用循环回(hui)用定期排(pai)放(fang),特别是钝(dun)化(hua)后(hou)不(bu)(bu)清洗(xi)的(de)无(wu)废(fei)水产(chan)(chan)生(sheng)(sheng)(sheng)的(de)生(sheng)(sheng)(sheng)产(chan)(chan)工(gong)艺。 5.电镀设备的特殊性镀(du)(du)(du)锌(xin)(xin)管(guan)(guan)的(de)电(dian)镀(du)(du)(du)同(tong)(tong)线(xian)材电(dian)镀(du)(du)(du)一(yi)样(yang),都(dou)属于连续电(dian)镀(du)(du)(du),但施(shi)镀(du)(du)(du)的(de)设备不同(tong)(tong)。铁丝(si)以其细(xi)长的(de)条形特色而设计的(de)镀(du)(du)(du)槽,槽体长而宽(kuan)却浅。电(dian)镀(du)(du)(du)时铁丝(si)从孔眼穿出,呈一(yi)字(zi)形在液面展开,保(bao)持相互间距(ju)。而镀(du)(du)(du)锌(xin)(xin)管(guan)(guan)却又(you)不同(tong)(tong)于铁丝(si),有(you)其独(du)特之处,槽设备较为复杂。槽体由(you)上(shang)(shang)、下两(liang)部分组成,上(shang)(shang)部为镀(du)(du)(du)槽,下部为溶液循环储存槽,形成一(yi)个上(shang)(shang)窄下宽(kuan)状、似梯形的(de)槽体,在镀(du)(du)(du)槽中设有(you)镀(du)(du)(du)锌(xin)(xin)管(guan)(guan)电(dian)镀(du)(du)(du)运(yun)行的(de)通道,槽底有(you)两(liang)个通孔与(yu)下部的(de)储存槽相通,并与(yu)液下泵形成镀(du)(du)(du)液循环复用系统。因(yin)此(ci),镀(du)(du)(du)锌(xin)(xin)管(guan)(guan)同(tong)(tong)铁丝(si)电(dian)镀(du)(du)(du)一(yi)样(yang),镀(du)(du)(du)件都(dou)是动态(tai)性的(de),而与(yu)铁丝(si)电(dian)镀(du)(du)(du)不同(tong)(tong)之处,电(dian)镀(du)(du)(du)镀(du)(du)(du)锌(xin)(xin)管(guan)(guan)的(de)镀(du)(du)(du)液也是动态(tai)性的(de)。 |
镀锌钢管分热镀锌和电镀锌两种,热镀锌镀锌层厚,具有镀层均匀,附着力强,使用寿命长等优点。电镀锌成本低,表面不是很光滑,其本身的耐腐蚀性比热镀锌管相差很多。