噪(zao)(zao)(zao)音所產(chan)生(sheng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)危(wei)害是比(bi)(bi)較大的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de),尤其(qi)(qi)是表現(xian)在如下幾個(ge)(ge)方(fang)(fang)(fang)面:1、長(chang)期(qi)在強(qiang)烈(lie)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)噪(zao)(zao)(zao)音環境中(zhong)工作,可以使人(ren)產(chan)生(sheng)噪(zao)(zao)(zao)聲(sheng)(sheng)性(xing)耳聾。2、影(ying)響人(ren)們的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)正(zheng)常(chang)工作、學習及日常(chang)生(sheng)活。那么石材(cai)加工過程中(zhong)噪(zao)(zao)(zao)音是怎樣產(chan)生(sheng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)呢(ni)?它(ta)主(zhu)要來自齒(chi)尖(jian)(jian)噪(zao)(zao)(zao)聲(sheng)(sheng),鋸(ju)(ju)(ju)片(pian)(pian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)振動(dong)及物料(liao)摩擦(ca)聲(sheng)(sheng)。齒(chi)尖(jian)(jian)噪(zao)(zao)(zao)聲(sheng)(sheng):是當鋸(ju)(ju)(ju)片(pian)(pian)高速(su)運轉(zhuan)(zhuan)時(shi)(shi),鋸(ju)(ju)(ju)片(pian)(pian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)鋸(ju)(ju)(ju)齒(chi)與(yu)(yu)周(zhou)圍(wei)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)空(kong)(kong)氣(qi)(qi)相互作用(yong),引起空(kong)(kong)氣(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)壓(ya)力(li)(li)脈動(dong)而(er)產(chan)生(sheng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)噪(zao)(zao)(zao)聲(sheng)(sheng)。齒(chi)尖(jian)(jian)噪(zao)(zao)(zao)聲(sheng)(sheng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)聲(sheng)(sheng)功率與(yu)(yu)鋸(ju)(ju)(ju)片(pian)(pian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)直徑(jing)、鋸(ju)(ju)(ju)片(pian)(pian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)線(xian)速(su)度(du)(du)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)三(san)次(ci)(ci)方(fang)(fang)(fang)成(cheng)(cheng)正(zheng)比(bi)(bi),當轉(zhuan)(zhuan)速(su)越低時(shi)(shi),與(yu)(yu)其(qi)(qi)線(xian)速(su)度(du)(du)三(san)次(ci)(ci)方(fang)(fang)(fang)成(cheng)(cheng)正(zheng)比(bi)(bi),齒(chi)尖(jian)(jian)噪(zao)(zao)(zao)聲(sheng)(sheng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)頻(pin)(pin)(pin)率可由下式計算:式中(zhong):fi—齒(chi)尖(jian)(jian)噪(zao)(zao)(zao)聲(sheng)(sheng)頻(pin)(pin)(pin)率,即鋸(ju)(ju)(ju)齒(chi)每秒打空(kong)(kong)氣(qi)(qi)質點的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)次(ci)(ci)數,(HZ)z—鋸(ju)(ju)(ju)片(pian)(pian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)齒(chi)數(個(ge)(ge))n—鋸(ju)(ju)(ju)片(pian)(pian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)軸的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)轉(zhuan)(zhuan)速(su)(r/min)i—諧(xie)波序號(hao)i=1、2、3……鋸(ju)(ju)(ju)片(pian)(pian)旋(xuan)轉(zhuan)(zhuan)時(shi)(shi),每個(ge)(ge)齒(chi)尖(jian)(jian)產(chan)生(sheng)單極輻射流(liu)(liu),并周(zhou)期(qi)地通(tong)過工作臺的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)鋸(ju)(ju)(ju)縫向外(wai)排(pai)出(chu),由于氣(qi)(qi)流(liu)(liu)壓(ya)力(li)(li)發(fa)生(sheng)激烈(lie)變化(hua),隨之(zhi)產(chan)生(sheng)排(pai)氣(qi)(qi)噪(zao)(zao)(zao)聲(sheng)(sheng),排(pai)氣(qi)(qi)噪(zao)(zao)(zao)聲(sheng)(sheng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)升功率也隨著鋸(ju)(ju)(ju)片(pian)(pian)線(xian)速(su)度(du)(du)增大而(er)急劇增加,它(ta)與(yu)(yu)氣(qi)(qi)流(liu)(liu)速(su)度(du)(du)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)6次(ci)(ci)方(fang)(fang)(fang)成(cheng)(cheng)正(zheng)比(bi)(bi),在線(xian)速(su)度(du)(du)較小時(shi)(shi),與(yu)(yu)其(qi)(qi)5次(ci)(ci)方(fang)(fang)(fang)成(cheng)(cheng)正(zheng)比(bi)(bi),則排(pai)氣(qi)(qi)噪(zao)(zao)(zao)聲(sheng)(sheng)頻(pin)(pin)(pin)率為(wei):式中(zhong):fi—排(pai)氣(qi)(qi)噪(zao)(zao)(zao)聲(sheng)(sheng)頻(pin)(pin)(pin)率,(HZ)z—鋸(ju)(ju)(ju)片(pian)(pian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)齒(chi)數(個(ge)(ge))n—鋸(ju)(ju)(ju)片(pian)(pian)軸的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)轉(zhuan)(zhuan)速(su)(r/min)i—諧(xie)波序號(hao)i=1、2、3……在鋸(ju)(ju)(ju)片(pian)(pian)高速(su)旋(xuan)轉(zhuan)(zhuan)時(shi)(shi),每當渦流(liu)(liu)分離(li)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)頻(pin)(pin)(pin)率與(yu)(yu)鋸(ju)(ju)(ju)片(pian)(pian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)固有(you)頻(pin)(pin)(pin)率相近時(shi)(shi),就發(fa)生(sheng)共振,便發(fa)出(chu)“尖(jian)(jian)叫聲(sheng)(sheng)”,其(qi)(qi)頻(pin)(pin)(pin)率為(wei):f=z fr式中(zhong):z—鋸(ju)(ju)(ju)片(pian)(pian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)齒(chi)數(個(ge)(ge))fr—軸回轉(zhuan)(zhuan)頻(pin)(pin)(pin)率(HZ)鋸(ju)(ju)(ju)片(pian)(pian)屬于薄壁(bi)件,其(qi)(qi)剛性(xing)一(yi)般(ban)較差,在外(wai)力(li)(li)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)作用(yong)下很容易(yi)產(chan)生(sheng)振動(dong),由于振動(dong)便容易(yi)產(chan)生(sheng)物料(liao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)摩擦(ca),因此該類的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)噪(zao)(zao)(zao)音也就隨之(zhi)產(chan)生(sheng)。
廣安建筑卡拉拉白大理石石材服務商燒(shao)(shao)毛加(jia)(jia)工(gong)燒(shao)(shao)毛加(jia)(jia)工(gong)又稱(cheng)火燒(shao)(shao)加(jia)(jia)工(gong)、噴燒(shao)(shao)加(jia)(jia)工(gong),是利用(yong)組成(cheng)花崗(gang)(gang)(gang)石(shi)的(de)不(bu)同礦物顆粒熱脹系(xi)數的(de)差(cha)異,用(yong)火焰噴燒(shao)(shao)使其表面(mian)(mian)(mian)部分顆粒熱脹破(po)裂脫(tuo)落,形成(cheng)起伏有序的(de)粗(cu)面(mian)(mian)(mian)紋飾(shi)。這種粗(cu)面(mian)(mian)(mian)花崗(gang)(gang)(gang)石(shi)板材(cai),非常的(de)適合于(yu)濕滑場所的(de)地面(mian)(mian)(mian)裝(zhuang)飾(shi)和戶外(wai)的(de)墻面(mian)(mian)(mian)裝(zhuang)飾(shi)。主(zhu)要(yao)(yao)設備是花崗(gang)(gang)(gang)石(shi)自動燒(shao)(shao)毛機(ji)(ji)。6、輔(fu)(fu)助(zhu)加(jia)(jia)工(gong)輔(fu)(fu)助(zhu)加(jia)(jia)工(gong)是將(jiang)已切齊、磨(mo)(mo)光(guang)的(de)石(shi)材(cai)按需(xu)要(yao)(yao)磨(mo)(mo)邊、倒(dao)角、開孔(kong)洞、鉆(zhan)眼、銑槽(cao)、銑邊等(deng)。主(zhu)要(yao)(yao)的(de)加(jia)(jia)工(gong)設備有自動磨(mo)(mo)邊倒(dao)角機(ji)(ji)、仿形銑機(ji)(ji)、薄壁鉆(zhan)孔(kong)機(ji)(ji)、手持(chi)金(jin)剛(gang)石(shi)圓鋸、手持(chi)磨(mo)(mo)光(guang)拋光(guang)機(ji)(ji)等(deng)。7、檢驗(yan)(yan)修補天(tian)然花崗(gang)(gang)(gang)石(shi)難免有裂縫(feng)、孔(kong)洞等(deng)瑕疵,而且在加(jia)(jia)工(gong)過(guo)程也(ye)難免會有一些磕碰(peng),出(chu)(chu)現一些小缺陷。所以在加(jia)(jia)工(gong)完成(cheng)后(hou)所有的(de)花崗(gang)(gang)(gang)巖板材(cai)都需(xu)要(yao)(yao)檢驗(yan)(yan),首先要(yao)(yao)通過(guo)清洗(xi),重(zhong)慶石(shi)材(cai)加(jia)(jia)工(gong)然后(hou)是吹(chui)干檢驗(yan)(yan),合格品包裝(zhuang)入(ru)庫,而不(bu)合格產品則(ze)應先挑出(chu)(chu)來(lai)。
石(shi)(shi)材鋪(pu)(pu)裝(zhuang)之(zhi)前首要清潔石(shi)(shi)材表(biao)(biao)面(mian)(mian)(mian)(mian),使其清潔單(dan)調再(zai)用(yong)(yong)板(ban)刷(shua)(shua)(shua)(毛刷(shua)(shua)(shua))或滾筒(tong)的方法對石(shi)(shi)材的反、正面(mian)(mian)(mian)(mian)及四立面(mian)(mian)(mian)(mian)刷(shua)(shua)(shua)兩遍(bian)水溶性(xing)防(fang)滲劑(ji)。為獲(huo)得佳效果,應使一層(ceng)徹底進(jin)入基材后(1-2小(xiao)時)再(zai)刷(shua)(shua)(shua)二遍(bian)。做完防(fang)滲處(chu)置起碼保護24小(xiao)時后才華(hua)鋪(pu)(pu)裝(zhuang)。5、石(shi)(shi)材鋪(pu)(pu)裝(zhuang)時應留縫(feng)鋪(pu)(pu)貼(tie)(竹編馬賽克等(deng)在(zai)外(wai))。6、為加(jia)強黏貼(tie)的健壯性(xing)及抗污性(xing),建議(yi)運用(yong)(yong)粘結(jie)劑(ji)鋪(pu)(pu)貼(tie)。7、淡(dan)色石(shi)(shi)材請運用(yong)(yong)淡(dan)色填(tian)逢劑(ji)。8、板(ban)巖類石(shi)(shi)材表(biao)(biao)面(mian)(mian)(mian)(mian)是運用(yong)(yong)分外(wai)剝離(li)技能制成,所以每片之(zhi)間(jian)存(cun)在(zai)薄厚(hou)不(bu)(bu)均(jun)表(biao)(biao)象(xiang)。因其表(biao)(biao)面(mian)(mian)(mian)(mian)較(jiao)粗糙(cao),填(tian)逢之(zhi)間(jian)請用(yong)(yong)軟布在(zai)表(biao)(biao)面(mian)(mian)(mian)(mian)抹(mo)擦少量食用(yong)(yong)油再(zai)填(tian)逢,以便(bian)于(yu)收(shou)(shou)拾填(tian)逢劑(ji)。注:填(tian)逢時要邊填(tian)邊用(yong)(yong)濕毛巾擦,不(bu)(bu)宜大面(mian)(mian)(mian)(mian)積(ji)鋪(pu)(pu)裝(zhuang)后再(zai)擦。9、砂巖產品表(biao)(biao)面(mian)(mian)(mian)(mian)沙孔較(jiao)多,填(tian)縫(feng)之(zhi)前運用(yong)(yong)寬膠(jiao)(jiao)帶對穩中有降縫(feng)和周圍(wei)進(jin)行貼(tie)蓋,然(ran)后把縫(feng)隙處(chu)的膠(jiao)(jiao)帶割開(kai)后再(zai)填(tian)縫(feng),避免填(tian)縫(feng)劑(ji)黏于(yu)石(shi)(shi)材表(biao)(biao)面(mian)(mian)(mian)(mian)不(bu)(bu)宜收(shou)(shou)拾。
在兩個(ge)相互(hu)垂直(zhi)在內的(de)(de)(de)(de)方向鋪兩條(tiao)干砂道路,讓他的(de)(de)(de)(de)寬度要(yao)(yao)(yao)大(da)于(yu)(yu)(yu)板(ban)寬的(de)(de)(de)(de)寬度,厚度要(yao)(yao)(yao)大(da)于(yu)(yu)(yu)3cm。結(jie)合施工大(da)樣圖(tu)(tu)及(ji)(ji)景觀鋪裝(zhuang)分區實際尺寸,把(ba)鋪裝(zhuang)板(ban)塊(kuai)排好(hao),重慶青石(shi)(shi)(shi)(shi)板(ban)材(cai)(cai)(cai)(cai)以便檢(jian)查板(ban)塊(kuai)之間(jian)的(de)(de)(de)(de)縫隙,核對(dui)板(ban)塊(kuai)與墻面(mian)(mian)(mian)(mian)、柱、洞口、樹(shu)池、側緣石(shi)(shi)(shi)(shi)、平緣石(shi)(shi)(shi)(shi)邊等部位的(de)(de)(de)(de)相對(dui)位置。石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)挑選(xuan)與辨別的(de)(de)(de)(de)三(san)個(ge)必知要(yao)(yao)(yao)點根(gen)據偉(wei)奇建(jian)材(cai)(cai)(cai)(cai)的(de)(de)(de)(de)經驗,對(dui)于(yu)(yu)(yu)石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)挑選(xuan)與辨別的(de)(de)(de)(de)三(san)個(ge)必知要(yao)(yao)(yao)點:一(yi)、色(se)調(diao);二、裝(zhuang)飾(shi)的(de)(de)(de)(de)意圖(tu)(tu)與環境影(ying)響;三(san)、辨識飾(shi)面(mian)(mian)(mian)(mian)石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)質量。接下來偉(wei)奇建(jian)材(cai)(cai)(cai)(cai)為大(da)家(jia)介紹(shao):一(yi)、色(se)調(diao)天然飾(shi)面(mian)(mian)(mian)(mian)石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)除需(xu)(xu)考慮色(se)調(diao)選(xuan)擇外,重慶石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)欄桿(gan)還要(yao)(yao)(yao)考慮建(jian)筑物(wu)的(de)(de)(de)(de)功(gong)能。在家(jia)居中,客(ke)廳及(ji)(ji)臥室的(de)(de)(de)(de)裝(zhuang)飾(shi)宜(yi)(yi)(yi)選(xuan)用(yong)偏暖的(de)(de)(de)(de)色(se)調(diao),以顯(xian)示溫暖、舒(shu)適的(de)(de)(de)(de)情調(diao);而用(yong)于(yu)(yu)(yu)衛生間(jian)、廚房(fang)的(de)(de)(de)(de)裝(zhuang)飾(shi)宜(yi)(yi)(yi)選(xuan)用(yong)素淡雅潔(jie)的(de)(de)(de)(de)偏冷色(se)調(diao),以顯(xian)示出清潔(jie)衛生。二、裝(zhuang)飾(shi)的(de)(de)(de)(de)意圖(tu)(tu)與環境影(ying)響由于(yu)(yu)(yu)使用(yong)天然飾(shi)面(mian)(mian)(mian)(mian)石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)裝(zhuang)飾(shi)的(de)(de)(de)(de)部位不同(tong),所以選(xuan)用(yong)的(de)(de)(de)(de)石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)類型(xing)也不同(tong)。用(yong)于(yu)(yu)(yu)室外建(jian)筑物(wu)裝(zhuang)飾(shi)時,需(xu)(xu)經受(shou)水期(qi)風吹雨淋日(ri)曬,花崗石(shi)(shi)(shi)(shi)因為不含有碳(tan)酸鹽(yan),重慶石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)欄桿(gan)吸水率小,抗風化能力強,好(hao)選(xuan)用(yong)各種類型(xing)的(de)(de)(de)(de)花崗石(shi)(shi)(shi)(shi)石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai);用(yong)于(yu)(yu)(yu)廳堂地面(mian)(mian)(mian)(mian)裝(zhuang)飾(shi)的(de)(de)(de)(de)飾(shi)面(mian)(mian)(mian)(mian)石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai),要(yao)(yao)(yao)求其物(wu)理化學性(xing)能穩定,機械強度高,應(ying)首選(xuan)花崗石(shi)(shi)(shi)(shi)類石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai);用(yong)于(yu)(yu)(yu)墻裙及(ji)(ji)家(jia)居臥室地面(mian)(mian)(mian)(mian)的(de)(de)(de)(de)裝(zhuang)飾(shi),機械強度稍差,宜(yi)(yi)(yi)選(xuan)用(yong)具有美(mei)麗圖(tu)(tu)案的(de)(de)(de)(de)大(da)理石(shi)(shi)(shi)(shi)。