砂紙拋光(guang)有(you)哪些注意事項？

(1) 用(yong)(yong)砂紙(zhi)拋光需要利用(yong)(yong)軟得木(mu)(mu)棒或(huo)竹(zhu)棒。在拋光圓面(mian)或(huo)球面(mian)得時，使(shi)用(yong)(yong)軟木(mu)(mu)棒可更好得配合(he)圓面(mian)和球面(mian)得弧度。而(er)較(jiao)(jiao)硬(ying)得木(mu)(mu)條(tiao)(tiao)像櫻桃木(mu)(mu)，則更適用(yong)(yong)于平整表(biao)面(mian)得拋光。修整木(mu)(mu)條(tiao)(tiao)得末端使(shi)其能與鋼件表(biao)面(mian)形狀保持吻合(he)，這樣可以避免得木(mu)(mu)條(tiao)(tiao)(或(huo)竹(zhu)條(tiao)(tiao))得銳角接觸鋼件表(biao)面(mian)而(er)造成較(jiao)(jiao)深(shen)得劃(hua)痕。

(2)當換(huan)(huan)用(yong)不(bu)(bu)同(tong)得(de)(de)型(xing)(xing)號(hao)得(de)(de)砂(sha)(sha)紙(zhi)時(shi)，拋光(guang)(guang)方向應變(bian)換(huan)(huan) 45 ° ~ 90 °，干磨砂(sha)(sha)紙(zhi)多少(shao)錢一(yi)個(ge)，這(zhe)樣(yang)前(qian)一(yi)種型(xing)(xing)號(hao)砂(sha)(sha)紙(zhi)拋光(guang)(guang)后留(liu)下(xia)得(de)(de)條紋(wen)陰影即(ji)可分辨出來。在(zai)換(huan)(huan)不(bu)(bu)同(tong)型(xing)(xing)號(hao)砂(sha)(sha)紙(zhi)得(de)(de)之(zhi)前(qian)，必(bi)須用(yong) 100 %純棉花沾取酒(jiu)精之(zhi)類(lei)得(de)(de)清潔液對(dui)拋光(guang)(guang)表面進行仔細得(de)(de)擦拭，因為一(yi)顆很小(xiao)得(de)(de)沙礫(li)留(liu)在(zai)表面都(dou)會毀壞接(jie)下(xia)去得(de)(de)整個(ge)拋光(guang)(guang)工作。從砂(sha)(sha)紙(zhi)拋光(guang)(guang)換(huan)(huan)成鉆石(shi)研(yan)磨膏拋光(guang)(guang)時(shi)，這(zhe)個(ge)清潔過(guo)程同(tong)樣(yang)重要。在(zai)拋光(guang)(guang)繼續進行之(zhi)前(qian)，所(suo)有顆粒和煤油都(dou)必(bi)須被完(wan)全清潔干凈。

(3)為了避免擦傷和工件表面，在用 #1200 和 #1500 砂紙進行拋光時必須特別小心。因而有必要加載一個輕載荷以及采用兩步拋光法對表面進行拋光。用每一種型號得砂紙進行拋光時都應沿兩個不同方向進行兩次拋光，兩個方向之間每次轉動 45 ° ~ 90 °。

砂帶運轉方向的選擇

使(shi)用搭(da)接砂(sha)(sha)帶(dai)(dai)時，干(gan)磨砂(sha)(sha)紙生產廠家，要(yao)使(shi)砂(sha)(sha)帶(dai)(dai)的(de)運轉方(fang)向(xiang)同砂(sha)(sha)帶(dai)(dai)背面所標志(zhi)的(de)方(fang)向(xiang)一致，否則(ze)砂(sha)(sha)帶(dai)(dai)在使(shi)用過程中易過早斷裂，并(bing)影響加(jia)工(gong)(gong)工(gong)(gong)件的(de)表面質量。使(shi)用對(dui)接砂(sha)(sha)帶(dai)(dai)時可以不考慮砂(sha)(sha)帶(dai)(dai)的(de)運轉方(fang)向(xiang)。

砂帶磨(mo)削中易出現的問題及(ji)解決方法

只有當砂帶的磨粒基本磨鈍、砂帶喪失磨削性能時才是砂帶使用壽命的正常結束。但是，在實際的砂帶磨削過程中因砂帶的質量不好、工件的質量不好、設備存在問題和操作不當等原因，也會造成砂帶在磨粒沒有磨鈍時發生報廢。

圓(yuan)盤(pan)砂根據(ju)(ju)不同(tong)的依據(ju)(ju)應(ying)該怎么分類?接(jie)下里小編來介(jie)紹。

圓(yuan)(yuan)(yuan)(yuan)盤(pan)(pan)砂(sha)(sha)(sha)(sha)(sha)(sha)從膠(jiao)結角度可(ke)分(fen)為(wei)兩類。背(bei)膠(jiao)盤(pan)(pan)砂(sha)(sha)(sha)(sha)(sha)(sha)和(he)(he)背(bei)天(tian)鵝(e)絨盤(pan)(pan)砂(sha)(sha)(sha)(sha)(sha)(sha)(又稱自粘盤(pan)(pan)砂(sha)(sha)(sha)(sha)(sha)(sha)和(he)(he)拉(la)天(tian)鵝(e)絨盤(pan)(pan)砂(sha)(sha)(sha)(sha)(sha)(sha));拉(la)天(tian)鵝(e)絨盤(pan)(pan)砂(sha)(sha)(sha)(sha)(sha)(sha)是無孔拉(la)天(tian)鵝(e)絨盤(pan)(pan)砂(sha)(sha)(sha)(sha)(sha)(sha)紙(zhi)(zhi)和(he)(he)拉(la)天(tian)鵝(e)絨盤(pan)(pan)砂(sha)(sha)(sha)(sha)(sha)(sha)紙(zhi)(zhi)帶(dai)(dai)孔。帶(dai)(dai)有(you)孔的(de)圓(yuan)(yuan)(yuan)(yuan)盤(pan)(pan)砂(sha)(sha)(sha)(sha)(sha)(sha)，便(bian)于在磨(mo)削物體時從孔中排出(chu)碎屑(xie)，提高(gao)了磨(mo)削效率。還(huan)有(you)其他(ta)分(fen)類方(fang)法，廣東干磨(mo)砂(sha)(sha)(sha)(sha)(sha)(sha)紙(zhi)(zhi)，如直徑4英寸、5英寸和(he)(he)6英寸的(de)圓(yuan)(yuan)(yuan)(yuan)盤(pan)(pan)砂(sha)(sha)(sha)(sha)(sha)(sha)，可(ke)用于直徑23 mm-235 mm的(de)區域。也有(you)圓(yuan)(yuan)(yuan)(yuan)盤(pan)(pan)砂(sha)(sha)(sha)(sha)(sha)(sha)從圓(yuan)(yuan)(yuan)(yuan)盤(pan)(pan)砂(sha)(sha)(sha)(sha)(sha)(sha)表(biao)面、普通(tong)白砂(sha)(sha)(sha)(sha)(sha)(sha)表(biao)面圓(yuan)(yuan)(yuan)(yuan)盤(pan)(pan)砂(sha)(sha)(sha)(sha)(sha)(sha)、紅砂(sha)(sha)(sha)(sha)(sha)(sha)表(biao)面圓(yuan)(yuan)(yuan)(yuan)盤(pan)(pan)砂(sha)(sha)(sha)(sha)(sha)(sha)、黃砂(sha)(sha)(sha)(sha)(sha)(sha)表(biao)面圓(yuan)(yuan)(yuan)(yuan)盤(pan)(pan)砂(sha)(sha)(sha)(sha)(sha)(sha)等分(fen)類而來(lai)，而且(qie)是罕見的(de)、藍砂(sha)(sha)(sha)(sha)(sha)(sha)表(biao)面圓(yuan)(yuan)(yuan)(yuan)盤(pan)(pan)砂(sha)(sha)(sha)(sha)(sha)(sha)、綠砂(sha)(sha)(sha)(sha)(sha)(sha)表(biao)面圓(yuan)(yuan)(yuan)(yuan)盤(pan)(pan)砂(sha)(sha)(sha)(sha)(sha)(sha)。另外(wai)，圓(yuan)(yuan)(yuan)(yuan)盤(pan)(pan)砂(sha)(sha)(sha)(sha)(sha)(sha)紙(zhi)(zhi)可(ke)分(fen)為(wei)碳(tan)(tan)(tan)化(hua)硅圓(yuan)(yuan)(yuan)(yuan)盤(pan)(pan)砂(sha)(sha)(sha)(sha)(sha)(sha)紙(zhi)(zhi)和(he)(he)棕(zong)剛(gang)(gang)玉(yu)圓(yuan)(yuan)(yuan)(yuan)盤(pan)(pan)砂(sha)(sha)(sha)(sha)(sha)(sha)紙(zhi)(zhi)，碳(tan)(tan)(tan)化(hua)硅圓(yuan)(yuan)(yuan)(yuan)盤(pan)(pan)砂(sha)(sha)(sha)(sha)(sha)(sha)紙(zhi)(zhi)可(ke)分(fen)為(wei)綠色(se)(se)碳(tan)(tan)(tan)化(hua)硅圓(yuan)(yuan)(yuan)(yuan)盤(pan)(pan)砂(sha)(sha)(sha)(sha)(sha)(sha)紙(zhi)(zhi)和(he)(he)黑(hei)色(se)(se)碳(tan)(tan)(tan)化(hua)硅圓(yuan)(yuan)(yuan)(yuan)盤(pan)(pan)砂(sha)(sha)(sha)(sha)(sha)(sha)紙(zhi)(zhi)。棕(zong)剛(gang)(gang)玉(yu)盤(pan)(pan)砂(sha)(sha)(sha)(sha)(sha)(sha)紙(zhi)(zhi)可(ke)分(fen)為(wei)普通(tong)棕(zong)剛(gang)(gang)玉(yu)盤(pan)(pan)砂(sha)(sha)(sha)(sha)(sha)(sha)、煅燒棕(zong)剛(gang)(gang)玉(yu)砂(sha)(sha)(sha)(sha)(sha)(sha)、鍍(du)銥棕(zong)剛(gang)(gang)玉(yu)盤(pan)(pan)砂(sha)(sha)(sha)(sha)(sha)(sha)、半(ban)脆(cui)性剛(gang)(gang)玉(yu)盤(pan)(pan)砂(sha)(sha)(sha)(sha)(sha)(sha)等。