一、砂紙型號與粗細的關系
砂(sha)(sha)(sha)紙(zhi)(zhi)(zhi)(zhi)(zhi)是(shi)一(yi)種供(gong)研(yan)磨(mo)用(yong)的(de)(de)(de)(de)材(cai)料,一(yi)般(ban)用(yong)來研(yan)磨(mo)金屬、木材(cai)等(deng)表(biao)面,以使(shi)其光潔(jie)平(ping)(ping)滑,是(shi)在原紙(zhi)(zhi)(zhi)(zhi)(zhi)上(shang)(shang)膠著(zhu)各(ge)種研(yan)磨(mo)砂(sha)(sha)(sha)粒而成,有不同的(de)(de)(de)(de)型(xing)號區分,砂(sha)(sha)(sha)紙(zhi)(zhi)(zhi)(zhi)(zhi)的(de)(de)(de)(de)型(xing)號一(yi)般(ban)用(yong)目來表(biao)示砂(sha)(sha)(sha)紙(zhi)(zhi)(zhi)(zhi)(zhi)的(de)(de)(de)(de)目數代表(biao)的(de)(de)(de)(de)就是(shi)砂(sha)(sha)(sha)紙(zhi)(zhi)(zhi)(zhi)(zhi)的(de)(de)(de)(de)粒度,用(yong)“#”或“目”來表(biao)示粒度,如800#砂(sha)(sha)(sha)紙(zhi)(zhi)(zhi)(zhi)(zhi),其實(shi)就是(shi)800粒度的(de)(de)(de)(de)意思,代表(biao)每平(ping)(ping)方英寸面積(ji)上(shang)(shang)有800個顆粒;號數(目數或粒度)越大(da),說明砂(sha)(sha)(sha)紙(zhi)(zhi)(zhi)(zhi)(zhi)越細(xi)(xi)。在選擇的(de)(de)(de)(de)時(shi)候(hou),并(bing)不是(shi)越粗(cu)越好,也不是(shi)越細(xi)(xi)越好,要根據不同的(de)(de)(de)(de)需求來選擇,砂(sha)(sha)(sha)紙(zhi)(zhi)(zhi)(zhi)(zhi)過粗(cu),容易導(dao)致出現(xian)劃(hua)痕;砂(sha)(sha)(sha)紙(zhi)(zhi)(zhi)(zhi)(zhi)過細(xi)(xi),很(hen)難打磨(mo)得(de)平(ping)(ping)整(zheng),粗(cu)砂(sha)(sha)(sha)紙(zhi)(zhi)(zhi)(zhi)(zhi)和(he)細(xi)(xi)砂(sha)(sha)(sha)紙(zhi)(zhi)(zhi)(zhi)(zhi)可以搭配使(shi)用(yong),先用(yong)粗(cu)砂(sha)(sha)(sha)紙(zhi)(zhi)(zhi)(zhi)(zhi)來進行(xing)粗(cu)加工(gong),再用(yong)細(xi)(xi)砂(sha)(sha)(sha)紙(zhi)(zhi)(zhi)(zhi)(zhi)將粗(cu)砂(sha)(sha)(sha)紙(zhi)(zhi)(zhi)(zhi)(zhi)留(liu)下的(de)(de)(de)(de)痕跡去除,這樣能節省時(shi)間成本(ben),打磨(mo)的(de)(de)(de)(de)效率(lv)比較(jiao)高。
二、砂紙型號規格大全
砂紙(zhi)(zhi)的(de)(de)(de)(de)(de)型(xing)(xing)號(hao)用目(mu)(mu)(mu)(mu)(mu)(mu)數(shu)表(biao)示(shi),即在1平方(fang)英寸的(de)(de)(de)(de)(de)面積上篩網的(de)(de)(de)(de)(de)孔數(shu),常(chang)用的(de)(de)(de)(de)(de)砂紙(zhi)(zhi)型(xing)(xing)號(hao)有80目(mu)(mu)(mu)(mu)(mu)(mu)、100目(mu)(mu)(mu)(mu)(mu)(mu)、120目(mu)(mu)(mu)(mu)(mu)(mu)、150目(mu)(mu)(mu)(mu)(mu)(mu)、180目(mu)(mu)(mu)(mu)(mu)(mu)、220目(mu)(mu)(mu)(mu)(mu)(mu)、280目(mu)(mu)(mu)(mu)(mu)(mu)、320目(mu)(mu)(mu)(mu)(mu)(mu)、400目(mu)(mu)(mu)(mu)(mu)(mu)、500目(mu)(mu)(mu)(mu)(mu)(mu)、600目(mu)(mu)(mu)(mu)(mu)(mu)等多種;一些(xie)打磨要求比(bi)較(jiao)高(gao)的(de)(de)(de)(de)(de)領(ling)域會(hui)使用細砂紙(zhi)(zhi),細砂紙(zhi)(zhi)的(de)(de)(de)(de)(de)目(mu)(mu)(mu)(mu)(mu)(mu)數(shu)更高(gao),其型(xing)(xing)號(hao)通(tong)常(chang)有800目(mu)(mu)(mu)(mu)(mu)(mu)、100目(mu)(mu)(mu)(mu)(mu)(mu)、1200目(mu)(mu)(mu)(mu)(mu)(mu)、1500目(mu)(mu)(mu)(mu)(mu)(mu)、2000目(mu)(mu)(mu)(mu)(mu)(mu)、2500目(mu)(mu)(mu)(mu)(mu)(mu)等多種,3000目(mu)(mu)(mu)(mu)(mu)(mu)以上的(de)(de)(de)(de)(de)細砂紙(zhi)(zhi)比(bi)較(jiao)少(shao)見。
三、拋光砂紙多少目的好
拋光是指利用機械、化學或電化學的作用,使工件表面粗糙度降低,以獲得光亮、平整表面的加工方法,砂紙可以用來磨削工件表面,降低粗糙度,因此也可以用于拋光加工。拋光加工需要選擇合適的砂紙目數,不然會對拋光效果有比較大的影響,一般要求使用的是目數較大的細砂紙,常用的拋光砂紙普遍在1200目以上,一般建議選用1500-2000目的比較好,具體選擇還需要根據拋光的材料和拋光要求挑選合適目數的砂紙,為了達到更好的拋光效果,要選擇正規砂紙品牌生產的拋光砂紙。
四、砂布和砂紙的區別
1、底基(ji)(ji)不同(tong)(tong):砂(sha)(sha)紙(zhi)(zhi)(zhi)是將磨(mo)(mo)(mo)料(liao)(liao)(liao)用(yong)粘結劑粘在紙(zhi)(zhi)(zhi)質(zhi)基(ji)(ji)體上的(de),比(bi)(bi)如牛皮紙(zhi)(zhi)(zhi)、乳膠紙(zhi)(zhi)(zhi)、耐水紙(zhi)(zhi)(zhi)等;砂(sha)(sha)布(bu)(bu)則是將磨(mo)(mo)(mo)料(liao)(liao)(liao)粘在布(bu)(bu)質(zhi)基(ji)(ji)體上的(de),也有的(de)砂(sha)(sha)布(bu)(bu)的(de)底基(ji)(ji)是紙(zhi)(zhi)(zhi)和(he)棉布(bu)(bu)一起做的(de)。2、磨(mo)(mo)(mo)料(liao)(liao)(liao)不同(tong)(tong):砂(sha)(sha)紙(zhi)(zhi)(zhi)和(he)砂(sha)(sha)布(bu)(bu)都是用(yong)研(yan)磨(mo)(mo)(mo)砂(sha)(sha)粒(li)作(zuo)為磨(mo)(mo)(mo)料(liao)(liao)(liao)的(de),其(qi)中砂(sha)(sha)紙(zhi)(zhi)(zhi)常(chang)用(yong)的(de)磨(mo)(mo)(mo)料(liao)(liao)(liao)主要是碳化硅、剛(gang)玉(yu)等;砂(sha)(sha)布(bu)(bu)的(de)磨(mo)(mo)(mo)料(liao)(liao)(liao)與砂(sha)(sha)紙(zhi)(zhi)(zhi)有所不同(tong)(tong),作(zuo)為磨(mo)(mo)(mo)料(liao)(liao)(liao)的(de)有人造金剛(gang)砂(sha)(sha)、人造剛(gang)玉(yu)、金剛(gang)砂(sha)(sha)、矽(xi)、石(shi)英、輕石(shi)、氧化鐵等。3、粒(li)度(du)(du)不同(tong)(tong):相比(bi)(bi)較(jiao)(jiao)而(er)言,砂(sha)(sha)紙(zhi)(zhi)(zhi)的(de)磨(mo)(mo)(mo)料(liao)(liao)(liao)粒(li)度(du)(du)會(hui)小一些,比(bi)(bi)較(jiao)(jiao)細膩(ni);砂(sha)(sha)布(bu)(bu)的(de)磨(mo)(mo)(mo)料(liao)(liao)(liao)粒(li)度(du)(du)都比(bi)(bi)較(jiao)(jiao)大,比(bi)(bi)較(jiao)(jiao)粗糙,但(dan)(dan)打(da)(da)磨(mo)(mo)(mo)速度(du)(du)快、效率高,但(dan)(dan)打(da)(da)磨(mo)(mo)(mo)精度(du)(du)相對(dui)沒那么高。4、價格不同(tong)(tong):同(tong)(tong)規格型號的(de)產品,砂(sha)(sha)紙(zhi)(zhi)(zhi)的(de)價格通常(chang)會(hui)比(bi)(bi)砂(sha)(sha)布(bu)(bu)要便(bian)宜一些,而(er)且一般購買的(de)時候也是砂(sha)(sha)紙(zhi)(zhi)(zhi)比(bi)(bi)較(jiao)(jiao)常(chang)見,砂(sha)(sha)布(bu)(bu)賣的(de)比(bi)(bi)較(jiao)(jiao)少(shao)。