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雅安小口徑珩磨管驗貨合格 <雅安>九冶管業有限公司

為了提率(lv)，珩(heng)(heng)磨(mo)(mo)管的(de)(de)生(sheng)產都是(shi)機械化方式了，將珩(heng)(heng)磨(mo)(mo)頭(tou)與(yu)機床主軸(zhou)采用浮動(dong)連接(jie)，以保證余(yu)量均勻(yun)。由(you)于砂條(tiao)很(hen)長，珩(heng)(heng)磨(mo)(mo)時(shi)工(gong)件(jian)的(de)(de)凸出(chu)部(bu)分(fen)先(xian)(xian)與(yu)砂條(tiao)接(jie)觸(chu)(chu)，接(jie)觸(chu)(chu)壓力較大，使凸出(chu)部(bu)分(fen)很(hen)快被磨(mo)(mo)去，直至修(xiu)正到工(gong)件(jian)表面與(yu)砂條(tiao)全部(bu)接(jie)觸(chu)(chu)。因此，珩(heng)(heng)磨(mo)(mo)能(neng)夠修(xiu)正前道工(gong)序產生(sheng)的(de)(de)幾何形狀誤差和(he)表面波度誤，但不能(neng)修(xiu)正軸(zhou)線位置誤差。要想使珩(heng)(heng)磨(mo)(mo)管獲得良(liang)好(hao)的(de)(de)珩(heng)(heng)磨(mo)(mo)效果，除選(xuan)用先(xian)(xian)進(jin)的(de)(de)珩(heng)(heng)磨(mo)(mo)工(gong)具及正確選(xuan)用磨(mo)(mo)條(tiao)材料和(he)粒度外(wai)，珩(heng)(heng)磨(mo)(mo)時(shi)采用工(gong)藝(yi)參數對加工(gong)質(zhi)(zhi)量和(he)生(sheng)產率(lv)也有很(hen)大的(de)(de)影響。比(bi)如(ru)說適當增加珩(heng)(heng)磨(mo)(mo)的(de)(de)往復(fu)運(yun)動(dong)速度，除了提高工(gong)效外(wai)，還能(neng)改善表面質(zhi)(zhi)量。

珩(heng)磨(mo)管(guan)所用(yong)的焊(han)(han)條(tiao)、焊(han)(han)劑應與所焊(han)(han)管(guan)材(cai)相匹(pi)配，其(qi)牌號必須有明確的依(yi)據(ju)資料，有產(chan)品(pin)合格(ge)證，且在(zai)有效使(shi)(shi)用(yong)期內(nei)。焊(han)(han)條(tiao)、焊(han)(han)劑在(zai)使(shi)(shi)用(yong)前應按其(qi)產(chan)品(pin)說明書規定烘干，并在(zai)使(shi)(shi)用(yong)過程(cheng)中保持干燥，在(zai)當天使(shi)(shi)用(yong)。焊(han)(han)條(tiao)藥(yao)皮應無脫落和顯著裂紋。珩(heng)磨(mo)管(guan)珩(heng)磨(mo)加工(gong)后表面質量好，有利(li)于潤(run)滑油的存(cun)儲及(ji)油膜的保持，有較高的表面支承率，因而(er)能承受較大載荷，耐磨(mo)損，從而(er)提高了產(chan)品(pin)的使(shi)(shi)用(yong)壽命；加工(gong)范圍廣(guang)，主要(yao)加工(gong)各種圓(yuan)柱形孔(kong)，用(yong)專(zhuan)用(yong)珩(heng)磨(mo)頭(tou)還(huan)可(ke)加工(gong)圓(yuan)錐孔(kong)、橢圓(yuan)孔(kong)等。

熱(re)軋(ya)(ya)(ya)鋼(gang)(gang)管(guan)(guan)珩磨，珩磨管(guan)(guan)用(yong)連(lian)鑄板(ban)(ban)(ban)坯或初軋(ya)(ya)(ya)板(ban)(ban)(ban)坯作(zuo)原(yuan)(yuan)(yuan)料(liao)，經(jing)步進式加熱(re)爐加熱(re)，高(gao)壓水(shui)除(chu)(chu)鱗(lin)后(hou)(hou)進入粗(cu)軋(ya)(ya)(ya)機(ji)，粗(cu)軋(ya)(ya)(ya)料(liao)經(jing)切(qie)頭(tou)、尾、再(zai)(zai)進入精(jing)軋(ya)(ya)(ya)機(ji)，實施計算機(ji) 控制(zhi)(zhi)軋(ya)(ya)(ya)制(zhi)(zhi)，終軋(ya)(ya)(ya)后(hou)(hou)即(ji)經(jing)過層流冷(leng)卻(que)和卷取(qu)機(ji)卷取(qu)、成(cheng)為(wei)直(zhi)發(fa)卷。直(zhi)發(fa)卷的(de)(de)頭(tou)、尾往(wang)往(wang)呈舌狀及魚尾狀，厚度、 寬度精(jing)度較差，邊部常存(cun)在浪形(xing)(xing)、折邊、塔形(xing)(xing)等(deng)(deng)缺陷(xian)。其卷重(zhong)(zhong)較重(zhong)(zhong)、鋼(gang)(gang)卷內徑為(wei)760mm。(一(yi)般(ban)制(zhi)(zhi)管(guan)(guan)行(xing)業喜(xi)歡使(shi)用(yong)。)將(jiang)直(zhi)發(fa)卷經(jing)切(qie)頭(tou)、 切(qie)尾、切(qie)邊及多道次的(de)(de)矯(jiao)直(zhi)、平(ping)(ping)整(zheng)(zheng)等(deng)(deng)精(jing)整(zheng)(zheng)線(xian)處理后(hou)(hou)，再(zai)(zai)切(qie)板(ban)(ban)(ban)或重(zhong)(zhong)卷，即(ji)成(cheng)為(wei)：熱(re)軋(ya)(ya)(ya)鋼(gang)(gang)板(ban)(ban)(ban)、平(ping)(ping)整(zheng)(zheng)熱(re)軋(ya)(ya)(ya)鋼(gang)(gang)卷、縱切(qie)帶(dai)等(deng)(deng)產品。熱(re)軋(ya)(ya)(ya)精(jing)整(zheng)(zheng)卷若經(jing)酸(suan)(suan)洗(xi)(xi)去除(chu)(chu)氧(yang)化皮并(bing)涂(tu)油后(hou)(hou)即(ji)成(cheng)熱(re)軋(ya)(ya)(ya)酸(suan)(suan)洗(xi)(xi)板(ban)(ban)(ban)卷。該產品有局(ju)部替代冷(leng)軋(ya)(ya)(ya)板(ban)(ban)(ban)的(de)(de)趨向，無縫(feng)鋼(gang)(gang)管(guan)(guan)價格適中(zhong)，深受廣大用(yong)戶喜(xi)愛。 冷(leng)拔鋼(gang)(gang)管(guan)(guan)用(yong)熱(re)軋(ya)(ya)(ya)鋼(gang)(gang)卷為(wei)原(yuan)(yuan)(yuan)料(liao)，經(jing)酸(suan)(suan)洗(xi)(xi)去除(chu)(chu)氧(yang)化皮后(hou)(hou)進行(xing)冷(leng)連(lian)軋(ya)(ya)(ya)，其成(cheng)品為(wei)軋(ya)(ya)(ya)硬卷，由于連(lian)續(xu)冷(leng)變形(xing)(xing)引起的(de)(de)冷(leng)作(zuo)硬化使(shi)軋(ya)(ya)(ya)硬卷的(de)(de)強度、硬度上升、韌塑指標下降，因此沖壓性能(neng)將(jiang)惡化，只能(neng)用(yong)于簡單變形(xing)(xing)的(de)(de)零件。軋(ya)(ya)(ya)硬卷可作(zuo)為(wei)熱(re)鍍(du)鋅廠(chang)的(de)(de)原(yuan)(yuan)(yuan)料(liao)，因為(wei)熱(re)鍍(du)鋅機(ji)組均(jun)設置有退 火(huo)線(xian)。