加(jia)裝隔(ge)聲(sheng)(sheng)罩(zhao)用(yong)(yong)(yong)隔(ge)聲(sheng)(sheng)罩(zhao)來(lai)降(jiang)低鋸片加(jia)工時的(de)(de)(de)(de)綜(zong)合噪(zao)聲(sheng)(sheng)是行之有效的(de)(de)(de)(de),罩(zhao)殼用(yong)(yong)(yong)鋼板制(zhi)(zhi)成(cheng),內涂阻尼材(cai)(cai)料(liao)、吸聲(sheng)(sheng)材(cai)(cai)料(liao),選擇(ze)超細(xi)玻璃(li)棉,襯一層玻璃(li)布(bu)。并用(yong)(yong)(yong)穿(chuan)孔板護面。罩(zhao)殼、吸聲(sheng)(sheng)材(cai)(cai)料(liao)、穿(chuan)孔板相對(dui)固定(ding)以防止(zhi)設備(bei)運轉造(zao)成(cheng)系統共振(zhen)引(yin)起(qi)新的(de)(de)(de)(de)噪(zao)音。措施與(yu)能(neng)達到(dao)的(de)(de)(de)(de)降(jiang)噪(zao)效果:(1)基(ji)(ji)體(ti)采用(yong)(yong)(yong)復合結構可以降(jiang)噪(zao)10分貝(bei)左(zuo)右(2)減振(zhen)法蘭盤(pan)可以降(jiang)噪(zao)3分貝(bei)左(zuo)右(3)基(ji)(ji)體(ti)采用(yong)(yong)(yong)消(xiao)音孔或消(xiao)音縫5分貝(bei)左(zuo)右(4)整體(ti)隔(ge)音罩(zhao)10分貝(bei)左(zuo)右簡析人(ren)造(zao)石(shi)(shi)的(de)(de)(de)(de)用(yong)(yong)(yong)途人(ren)造(zao)石(shi)(shi)材(cai)(cai)從誕生(sheng)至(zhi)今經歷幾(ji)十年的(de)(de)(de)(de)研究、開(kai)發和創新,使人(ren)造(zao)石(shi)(shi)材(cai)(cai)能(neng)開(kai)發多種材(cai)(cai)料(liao)廣泛應(ying)用(yong)(yong)(yong)與(yu)商業、住宅、甚(shen)至(zhi)軍事(shi)領域等。在(zai)商業用(yong)(yong)(yong)途上,人(ren)造(zao)石(shi)(shi)材(cai)(cai)的(de)(de)(de)(de)使用(yong)(yong)(yong)幾(ji)乎不受(shou)限制(zhi)(zhi)。根據產(chan)品的(de)(de)(de)(de)適應(ying)性(xing),它可用(yong)(yong)(yong)于健康中(zhong)心、醫療機構、公共寫字樓、廠礦公司、購物中(zhong)心等空(kong)間里的(de)(de)(de)(de)設備(bei)設施。
噪(zao)(zao)音(yin)(yin)所產(chan)(chan)生(sheng)(sheng)的(de)(de)(de)(de)(de)危害是(shi)比(bi)(bi)較大(da)的(de)(de)(de)(de)(de),尤其(qi)(qi)是(shi)表(biao)現在(zai)如下幾個(ge)方(fang)(fang)面:1、長期在(zai)強烈的(de)(de)(de)(de)(de)噪(zao)(zao)音(yin)(yin)環(huan)境中工(gong)作,可以使人產(chan)(chan)生(sheng)(sheng)噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)性耳(er)聾。2、影響人們(men)的(de)(de)(de)(de)(de)正常工(gong)作、學習及(ji)日常生(sheng)(sheng)活。那么石(shi)材加工(gong)過程(cheng)中噪(zao)(zao)音(yin)(yin)是(shi)怎樣(yang)產(chan)(chan)生(sheng)(sheng)的(de)(de)(de)(de)(de)呢?它(ta)主要來自齒(chi)(chi)(chi)(chi)(chi)尖噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng),鋸(ju)(ju)片(pian)(pian)(pian)的(de)(de)(de)(de)(de)振(zhen)動(dong)及(ji)物料(liao)摩(mo)擦(ca)聲(sheng)(sheng)(sheng)(sheng)。齒(chi)(chi)(chi)(chi)(chi)尖噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng):是(shi)當(dang)鋸(ju)(ju)片(pian)(pian)(pian)高(gao)速(su)運轉時(shi),鋸(ju)(ju)片(pian)(pian)(pian)的(de)(de)(de)(de)(de)鋸(ju)(ju)齒(chi)(chi)(chi)(chi)(chi)與(yu)周圍的(de)(de)(de)(de)(de)空氣相(xiang)互作用,引起空氣的(de)(de)(de)(de)(de)壓力(li)(li)脈(mo)動(dong)而產(chan)(chan)生(sheng)(sheng)的(de)(de)(de)(de)(de)噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)。齒(chi)(chi)(chi)(chi)(chi)尖噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)(de)(de)聲(sheng)(sheng)(sheng)(sheng)功(gong)(gong)率(lv)與(yu)鋸(ju)(ju)片(pian)(pian)(pian)的(de)(de)(de)(de)(de)直徑、鋸(ju)(ju)片(pian)(pian)(pian)的(de)(de)(de)(de)(de)線(xian)(xian)速(su)度(du)的(de)(de)(de)(de)(de)三次(ci)(ci)(ci)方(fang)(fang)成(cheng)(cheng)正比(bi)(bi),當(dang)轉速(su)越(yue)低時(shi),與(yu)其(qi)(qi)線(xian)(xian)速(su)度(du)三次(ci)(ci)(ci)方(fang)(fang)成(cheng)(cheng)正比(bi)(bi),齒(chi)(chi)(chi)(chi)(chi)尖噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)(de)(de)頻(pin)(pin)(pin)率(lv)可由下式(shi)計算:式(shi)中:fi—齒(chi)(chi)(chi)(chi)(chi)尖噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)頻(pin)(pin)(pin)率(lv),即鋸(ju)(ju)齒(chi)(chi)(chi)(chi)(chi)每秒打空氣質點(dian)的(de)(de)(de)(de)(de)次(ci)(ci)(ci)數(shu),(HZ)z—鋸(ju)(ju)片(pian)(pian)(pian)的(de)(de)(de)(de)(de)齒(chi)(chi)(chi)(chi)(chi)數(shu)(個(ge))n—鋸(ju)(ju)片(pian)(pian)(pian)的(de)(de)(de)(de)(de)軸(zhou)的(de)(de)(de)(de)(de)轉速(su)(r/min)i—諧(xie)波(bo)(bo)序號i=1、2、3……鋸(ju)(ju)片(pian)(pian)(pian)旋轉時(shi),每個(ge)齒(chi)(chi)(chi)(chi)(chi)尖產(chan)(chan)生(sheng)(sheng)單極輻射流(liu),并周期地通過工(gong)作臺的(de)(de)(de)(de)(de)鋸(ju)(ju)縫向外(wai)排出,由于(yu)氣流(liu)壓力(li)(li)發生(sheng)(sheng)激烈變化(hua),隨(sui)(sui)之(zhi)產(chan)(chan)生(sheng)(sheng)排氣噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng),排氣噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)(de)(de)升(sheng)功(gong)(gong)率(lv)也(ye)隨(sui)(sui)著鋸(ju)(ju)片(pian)(pian)(pian)線(xian)(xian)速(su)度(du)增(zeng)大(da)而急劇增(zeng)加,它(ta)與(yu)氣流(liu)速(su)度(du)的(de)(de)(de)(de)(de)6次(ci)(ci)(ci)方(fang)(fang)成(cheng)(cheng)正比(bi)(bi),在(zai)線(xian)(xian)速(su)度(du)較小時(shi),與(yu)其(qi)(qi)5次(ci)(ci)(ci)方(fang)(fang)成(cheng)(cheng)正比(bi)(bi),則(ze)排氣噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)頻(pin)(pin)(pin)率(lv)為(wei):式(shi)中:fi—排氣噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)頻(pin)(pin)(pin)率(lv),(HZ)z—鋸(ju)(ju)片(pian)(pian)(pian)的(de)(de)(de)(de)(de)齒(chi)(chi)(chi)(chi)(chi)數(shu)(個(ge))n—鋸(ju)(ju)片(pian)(pian)(pian)軸(zhou)的(de)(de)(de)(de)(de)轉速(su)(r/min)i—諧(xie)波(bo)(bo)序號i=1、2、3……在(zai)鋸(ju)(ju)片(pian)(pian)(pian)高(gao)速(su)旋轉時(shi),每當(dang)渦流(liu)分離的(de)(de)(de)(de)(de)頻(pin)(pin)(pin)率(lv)與(yu)鋸(ju)(ju)片(pian)(pian)(pian)的(de)(de)(de)(de)(de)固有頻(pin)(pin)(pin)率(lv)相(xiang)近時(shi),就發生(sheng)(sheng)共(gong)振(zhen),便發出“尖叫(jiao)聲(sheng)(sheng)(sheng)(sheng)”,其(qi)(qi)頻(pin)(pin)(pin)率(lv)為(wei):f=z fr式(shi)中:z—鋸(ju)(ju)片(pian)(pian)(pian)的(de)(de)(de)(de)(de)齒(chi)(chi)(chi)(chi)(chi)數(shu)(個(ge))fr—軸(zhou)回轉頻(pin)(pin)(pin)率(lv)(HZ)鋸(ju)(ju)片(pian)(pian)(pian)屬于(yu)薄壁件,其(qi)(qi)剛性一般較差,在(zai)外(wai)力(li)(li)的(de)(de)(de)(de)(de)作用下很容(rong)易(yi)產(chan)(chan)生(sheng)(sheng)振(zhen)動(dong),由于(yu)振(zhen)動(dong)便容(rong)易(yi)產(chan)(chan)生(sheng)(sheng)物料(liao)的(de)(de)(de)(de)(de)摩(mo)擦(ca),因(yin)此該類的(de)(de)(de)(de)(de)噪(zao)(zao)音(yin)(yin)也(ye)就隨(sui)(sui)之(zhi)產(chan)(chan)生(sheng)(sheng)。
石(shi)(shi)(shi)材(cai)拼(pin)(pin)(pin)花(hua)補(bu)膠、研(yan)磨(mo)及相關注意事項(xiang)石(shi)(shi)(shi)材(cai)拼(pin)(pin)(pin)花(hua),是(shi)一種常見的(de)(de)(de)(de)石(shi)(shi)(shi)材(cai)裝飾(shi)效(xiao)果。這種工(gong)藝(yi),其(qi)實從古至今都有(you)(you)。并且隨(sui)著(zhu)現代設(she)計(ji)(ji)和(he)制作技術的(de)(de)(de)(de)進步(bu),漂亮的(de)(de)(de)(de)石(shi)(shi)(shi)材(cai)拼(pin)(pin)(pin)花(hua),大有(you)(you)方興未艾(ai)之勢(shi)。我(wo)們(men)(men)做石(shi)(shi)(shi)材(cai)護(hu)理(li)(li)工(gong)程,將(jiang)來遇到(dao)石(shi)(shi)(shi)材(cai)拼(pin)(pin)(pin)花(hua)的(de)(de)(de)(de)機會,也(ye)會越(yue)(yue)來越(yue)(yue)多。本(ben)期我(wo)們(men)(men)就介紹下石(shi)(shi)(shi)材(cai)拼(pin)(pin)(pin)花(hua)的(de)(de)(de)(de)補(bu)膠、研(yan)磨(mo)等(deng)環節的(de)(de)(de)(de)工(gong)藝(yi)。材(cai)料(liao)概念石(shi)(shi)(shi)材(cai)拼(pin)(pin)(pin)花(hua)設(she)計(ji)(ji),是(shi)指利用天然石(shi)(shi)(shi)材(cai)的(de)(de)(de)(de)不(bu)(bu)同(tong)色澤(ze),通過設(she)計(ji)(ji)和(he)加工(gong),拼(pin)(pin)(pin)裝成(cheng)不(bu)(bu)同(tong)花(hua)型(xing)、圖案、logo等(deng)各類效(xiao)果的(de)(de)(de)(de)石(shi)(shi)(shi)材(cai)裝飾(shi)藝(yi)術。材(cai)料(liao)類型(xing)得益于技術的(de)(de)(de)(de)進步(bu),現代石(shi)(shi)(shi)材(cai)拼(pin)(pin)(pin)花(hua)設(she)計(ji)(ji),可謂(wei)“沒(mei)有(you)(you)做不(bu)(bu)到(dao),只有(you)(you)想不(bu)(bu)到(dao)”——類型(xing)眾多,且幾乎隨(sui)時(shi)都有(you)(you)新的(de)(de)(de)(de)設(she)計(ji)(ji)和(he)類型(xing)出(chu)現。因此,在這里我(wo)們(men)(men)主(zhu)要從石(shi)(shi)(shi)材(cai)護(hu)理(li)(li)的(de)(de)(de)(de)角度出(chu)發,對拼(pin)(pin)(pin)花(hua)進行分類。這樣(yang)的(de)(de)(de)(de)分類,對補(bu)膠、研(yan)磨(mo)等(deng)工(gong)藝(yi),是(shi)有(you)(you)直接的(de)(de)(de)(de)影響的(de)(de)(de)(de)。
永川建筑南斯拉夫白石材廠顏色與質材(cai)相得益彰,設(she)計(ji)的(de)(de)空間會(hui)因此更加廣闊,人(ren)(ren)的(de)(de)激情也會(hui)因此而(er)(er)常有(you)(you)常新!人(ren)(ren)造(zao)(zao)(zao)石(shi)(shi)材(cai)種(zhong)類與特點(dian)及其石(shi)(shi)材(cai)用(yong)(yong)途一、人(ren)(ren)造(zao)(zao)(zao)石(shi)(shi)材(cai)的(de)(de)種(zhong)類(1)按出產(chan)所用(yong)(yong)的(de)(de)材(cai)料人(ren)(ren)造(zao)(zao)(zao)大(da)(da)(da)(da)理(li)石(shi)(shi)重(zhong)要分為:水泥型(xing)人(ren)(ren)造(zao)(zao)(zao)大(da)(da)(da)(da)理(li)石(shi)(shi)、樹(shu)脂型(xing)人(ren)(ren)造(zao)(zao)(zao)大(da)(da)(da)(da)理(li)石(shi)(shi)、復(fu)合型(xing)人(ren)(ren)造(zao)(zao)(zao)大(da)(da)(da)(da)理(li)石(shi)(shi)、燒(shao)結型(xing)人(ren)(ren)造(zao)(zao)(zao)大(da)(da)(da)(da)理(li)石(shi)(shi)。這(zhe)四(si)種(zhong)制作(zuo)人(ren)(ren)造(zao)(zao)(zao)大(da)(da)(da)(da)理(li)石(shi)(shi)的(de)(de)方法中,常用(yong)(yong)的(de)(de)是聚酯型(xing)人(ren)(ren)造(zao)(zao)(zao)大(da)(da)(da)(da)理(li)石(shi)(shi),其物理(li)和化(hua)學(xue)(xue)機能(neng)(neng)好,花紋輕易(yi)(yi)設(she)計(ji),有(you)(you)重(zhong)現性(xing)(xing),適于(yu)多種(zhong)用(yong)(yong)處,但價(jia)格絕(jue)對較高(gao);水泥型(xing)人(ren)(ren)造(zao)(zao)(zao)大(da)(da)(da)(da)理(li)石(shi)(shi)價(jia)錢低廉,但耐(nai)腐(fu)化(hua)性(xing)(xing)能(neng)(neng)較差(cha),容易(yi)(yi)呈現微龜裂(lie),適于(yu)作(zuo)板材(cai)而(er)(er)不適于(yu)作(zuo)衛(wei)生潔具;復(fu)合型(xing)則綜合了前兩者(zhe)的(de)(de)長處,既(ji)有(you)(you)良好的(de)(de)物化(hua)性(xing)(xing)能(neng)(neng),本錢也較低;燒(shao)結型(xing)人(ren)(ren)造(zao)(zao)(zao)大(da)(da)(da)(da)理(li)石(shi)(shi)固然只用(yong)(yong)粘土作(zuo)膠粘劑,但需經高(gao)溫(wen)焙燒(shao),因此能(neng)(neng)耗大(da)(da)(da)(da),造(zao)(zao)(zao)價(jia)高(gao),而(er)(er)且產(chan)品破損(sun)率高(gao)。(2)按使用(yong)(yong)品名分類為:1、亞克力石(shi)(shi):一種(zhong)化(hua)學(xue)(xue)樹(shu)脂合成材(cai)料,清潔,多用(yong)(yong)于(yu)廚房(fang)臺面,易(yi)(yi)成型(xing),防水性(xing)(xing)好,無色差(cha),但易(yi)(yi)劃傷。