
噪(zao)(zao)(zao)音(yin)所(suo)產(chan)生的(de)(de)(de)(de)危害是(shi)(shi)比較(jiao)大的(de)(de)(de)(de),尤其是(shi)(shi)表現(xian)在如下(xia)幾個(ge)方(fang)面:1、長期在強烈(lie)(lie)的(de)(de)(de)(de)噪(zao)(zao)(zao)音(yin)環境中(zhong)工(gong)(gong)作(zuo),可以(yi)使人產(chan)生噪(zao)(zao)(zao)聲(sheng)(sheng)性(xing)耳聾。2、影響人們的(de)(de)(de)(de)正(zheng)常工(gong)(gong)作(zuo)、學習及日常生活。那么石(shi)材加工(gong)(gong)過程中(zhong)噪(zao)(zao)(zao)音(yin)是(shi)(shi)怎樣(yang)產(chan)生的(de)(de)(de)(de)呢?它主要(yao)來自齒(chi)(chi)(chi)尖噪(zao)(zao)(zao)聲(sheng)(sheng),鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)(pian)(pian)的(de)(de)(de)(de)振動(dong)及物料摩(mo)擦聲(sheng)(sheng)。齒(chi)(chi)(chi)尖噪(zao)(zao)(zao)聲(sheng)(sheng):是(shi)(shi)當(dang)鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)(pian)(pian)高速(su)(su)(su)(su)運轉(zhuan)時,鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)(pian)(pian)的(de)(de)(de)(de)鋸(ju)(ju)(ju)(ju)(ju)齒(chi)(chi)(chi)與(yu)(yu)周圍的(de)(de)(de)(de)空氣(qi)(qi)相(xiang)互作(zuo)用,引起空氣(qi)(qi)的(de)(de)(de)(de)壓力(li)脈動(dong)而產(chan)生的(de)(de)(de)(de)噪(zao)(zao)(zao)聲(sheng)(sheng)。齒(chi)(chi)(chi)尖噪(zao)(zao)(zao)聲(sheng)(sheng)的(de)(de)(de)(de)聲(sheng)(sheng)功率(lv)與(yu)(yu)鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)(pian)(pian)的(de)(de)(de)(de)直(zhi)徑、鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)(pian)(pian)的(de)(de)(de)(de)線(xian)速(su)(su)(su)(su)度(du)(du)的(de)(de)(de)(de)三(san)次方(fang)成(cheng)正(zheng)比,當(dang)轉(zhuan)速(su)(su)(su)(su)越(yue)低時,與(yu)(yu)其線(xian)速(su)(su)(su)(su)度(du)(du)三(san)次方(fang)成(cheng)正(zheng)比,齒(chi)(chi)(chi)尖噪(zao)(zao)(zao)聲(sheng)(sheng)的(de)(de)(de)(de)頻率(lv)可由(you)下(xia)式計算:式中(zhong):fi—齒(chi)(chi)(chi)尖噪(zao)(zao)(zao)聲(sheng)(sheng)頻率(lv),即鋸(ju)(ju)(ju)(ju)(ju)齒(chi)(chi)(chi)每(mei)秒(miao)打空氣(qi)(qi)質(zhi)點的(de)(de)(de)(de)次數,(HZ)z—鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)(pian)(pian)的(de)(de)(de)(de)齒(chi)(chi)(chi)數(個(ge))n—鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)(pian)(pian)的(de)(de)(de)(de)軸的(de)(de)(de)(de)轉(zhuan)速(su)(su)(su)(su)(r/min)i—諧波(bo)序號(hao)i=1、2、3……鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)(pian)(pian)旋轉(zhuan)時,每(mei)個(ge)齒(chi)(chi)(chi)尖產(chan)生單極輻射流(liu)(liu),并周期地通過工(gong)(gong)作(zuo)臺的(de)(de)(de)(de)鋸(ju)(ju)(ju)(ju)(ju)縫向(xiang)外排(pai)出,由(you)于氣(qi)(qi)流(liu)(liu)壓力(li)發生激(ji)烈(lie)(lie)變化(hua),隨之產(chan)生排(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)升功率(lv)也隨著鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)(pian)(pian)線(xian)速(su)(su)(su)(su)度(du)(du)增大而急劇增加,它與(yu)(yu)氣(qi)(qi)流(liu)(liu)速(su)(su)(su)(su)度(du)(du)的(de)(de)(de)(de)6次方(fang)成(cheng)正(zheng)比,在線(xian)速(su)(su)(su)(su)度(du)(du)較(jiao)小時,與(yu)(yu)其5次方(fang)成(cheng)正(zheng)比,則排(pai)氣(qi)(qi)噪(zao)(zao)(zao)聲(sheng)(sheng)頻率(lv)為:式中(zhong):fi—排(pai)氣(qi)(qi)噪(zao)(zao)(zao)聲(sheng)(sheng)頻率(lv),(HZ)z—鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)(pian)(pian)的(de)(de)(de)(de)齒(chi)(chi)(chi)數(個(ge))n—鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)(pian)(pian)軸的(de)(de)(de)(de)轉(zhuan)速(su)(su)(su)(su)(r/min)i—諧波(bo)序號(hao)i=1、2、3……在鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)(pian)(pian)高速(su)(su)(su)(su)旋轉(zhuan)時,每(mei)當(dang)渦流(liu)(liu)分離的(de)(de)(de)(de)頻率(lv)與(yu)(yu)鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)(pian)(pian)的(de)(de)(de)(de)固有頻率(lv)相(xiang)近時,就發生共振,便發出“尖叫聲(sheng)(sheng)”,其頻率(lv)為:f=z fr式中(zhong):z—鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)(pian)(pian)的(de)(de)(de)(de)齒(chi)(chi)(chi)數(個(ge))fr—軸回轉(zhuan)頻率(lv)(HZ)鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)(pian)(pian)屬于薄壁件,其剛性(xing)一般較(jiao)差,在外力(li)的(de)(de)(de)(de)作(zuo)用下(xia)很容易產(chan)生振動(dong),由(you)于振動(dong)便容易產(chan)生物料的(de)(de)(de)(de)摩(mo)擦,因(yin)此該(gai)類的(de)(de)(de)(de)噪(zao)(zao)(zao)音(yin)也就隨之產(chan)生。

雅安裝修雅典金花大理石服務商臺下(xia)柜臺盆(pen)(pen)(pen)安裝(zhuang):臺盆(pen)(pen)(pen)固(gu)(gu)定(ding)于固(gu)(gu)定(ding)構件(jian)上,固(gu)(gu)定(ding)構建與(yu)(yu)臺下(xia)柜基層面8mm對穿螺絲(si)固(gu)(gu)定(ding),臺盆(pen)(pen)(pen)與(yu)(yu)固(gu)(gu)定(ding)構件(jian)連接(jie)(jie)處用(yong)橡(xiang)皮墊塊,臺盆(pen)(pen)(pen)與(yu)(yu)臺面板(ban)下(xia)沿口用(yong)耐候膠(jiao)(jiao)密封。7、衛生間玻(bo)(bo)璃(li)隔斷與(yu)(yu)大理(li)石(shi)(shi)墻(qiang)面交(jiao)接(jie)(jie)施工節點(dian):(1)淋浴(yu)房玻(bo)(bo)璃(li)安裝(zhuang)前,在兩(liang)塊石(shi)(shi)材間預埋“U”形不銹鋼槽,用(yong)AB膠(jiao)(jiao)或云石(shi)(shi)膠(jiao)(jiao)粘結固(gu)(gu)定(ding),把玻(bo)(bo)璃(li)嵌入(ru)槽內,接(jie)(jie)縫(feng)處打(da)透明防霉硅膠(jiao)(jiao)。(2)U型不銹鋼內徑規格寬比玻(bo)(bo)璃(li)厚度大2-4mm,深為(wei)15-18mm,壁厚不小于1.2mm。(3)玻(bo)(bo)璃(li)需四(si)周磨邊處理(li)。8、淋浴(yu)房門預埋件(jian)安裝(zhuang):在石(shi)(shi)材安裝(zhuang)前預埋鐵桿(gan)(gan),直接(jie)(jie)與(yu)(yu)墻(qiang)體(ti)固(gu)(gu)定(ding)(砂(sha)加氣墻(qiang)需采用(yong)對穿螺絲(si)桿(gan)(gan)加固(gu)(gu))。9、衛生間壁龕施工:高度按墻(qiang)面石(shi)(shi)材或瓷(ci)磚(zhuan)排(pai)版而定(ding),高度應于橫縫(feng)跟(gen)平,并做與(yu)(yu)橫縫(feng)相同(tong)的倒角或凹槽。

在(zai)兩(liang)個相互垂直(zhi)在(zai)內的方向鋪(pu)(pu)兩(liang)條干砂道路,讓(rang)他(ta)的寬度(du)要(yao)(yao)大(da)于板(ban)寬的寬度(du),厚度(du)要(yao)(yao)大(da)于3cm。結合(he)施(shi)工(gong)大(da)樣圖及景觀鋪(pu)(pu)裝(zhuang)(zhuang)(zhuang)分區實際尺寸(cun),把鋪(pu)(pu)裝(zhuang)(zhuang)(zhuang)板(ban)塊排(pai)好,重慶青(qing)石(shi)(shi)板(ban)材(cai)(cai)以便檢查板(ban)塊之間(jian)的縫隙,核對(dui)板(ban)塊與墻(qiang)面、柱、洞口、樹池、側緣石(shi)(shi)、平(ping)緣石(shi)(shi)邊等部位的相對(dui)位置。裝(zhuang)(zhuang)(zhuang)飾(shi)(shi)石(shi)(shi)材(cai)(cai)具備的基(ji)本條件具備裝(zhuang)(zhuang)(zhuang)飾(shi)(shi)石(shi)(shi)材(cai)(cai)必(bi)(bi)須符合(he)3條基(ji)本條件。①有(you)外在(zai)美(mei)學裝(zhuang)(zhuang)(zhuang)飾(shi)(shi)性。這(zhe)是(shi)從視覺(jue)和人的欣賞、歷史(shi)文化角度(du)認識的,重慶青(qing)石(shi)(shi)板(ban)材(cai)(cai)各個民族(zu)、地域(yu)、習慣(guan)、喜好不同(tong)(tong),使用(yong)的裝(zhuang)(zhuang)(zhuang)飾(shi)(shi)石(shi)(shi)材(cai)(cai)色彩、種類也不同(tong)(tong),重慶青(qing)石(shi)(shi)板(ban)材(cai)(cai)但不管怎樣只要(yao)(yao)是(shi)作為裝(zhuang)(zhuang)(zhuang)飾(shi)(shi)裝(zhuang)(zhuang)(zhuang)修(xiu)使用(yong)就必(bi)(bi)須要(yao)(yao)考慮石(shi)(shi)材(cai)(cai)的外在(zai)美(mei)觀。這(zhe)是(shi)設計、選擇裝(zhuang)(zhuang)(zhuang)飾(shi)(shi)石(shi)(shi)材(cai)(cai)的首要(yao)(yao)因素。

冬季為了方(fang)(fang)便清(qing)(qing)潔(jie)工(gong)(gong)作(zuo)和(he)清(qing)(qing)潔(jie)效(xiao)果(guo),建(jian)(jian)(jian)議在(zai)出入口放(fang)置吸水地(di)墊,保潔(jie)員(yuan)也應同時作(zuo)好(hao)隨時清(qing)(qing)潔(jie)污(wu)垢、污(wu)水的(de)(de)(de)準(zhun)備(bei),且地(di)面(mian)(mian)也應使用(yong)刷地(di)機每周清(qing)(qing)洗(xi)1次地(di)面(mian)(mian)。大理(li)石地(di)面(mian)(mian)的(de)(de)(de)定(ding)期養護1、大理(li)石地(di)面(mian)(mian)在(zai)完成一次的(de)(de)(de)全方(fang)(fang)位蠟(la)面(mian)(mian)護理(li)后的(de)(de)(de)3個月(yue)后,局部磨(mo)損處應該進(jin)行補蠟(la)處理(li)并拋光(guang),可(ke)延長蠟(la)面(mian)(mian)的(de)(de)(de)壽(shou)命。2、大理(li)石打蠟(la)地(di)面(mian)(mian)建(jian)(jian)(jian)議有(you)(you)條件的(de)(de)(de)單位,每晚(wan)在(zai)出入口處及電(dian)梯處進(jin)行拋光(guang)噴磨(mo)養護。3、大理(li)石地(di)面(mian)(mian)在(zai)完成一次的(de)(de)(de)全方(fang)(fang)位蠟(la)面(mian)(mian)護理(li)后的(de)(de)(de)8—10個月(yue)后,建(jian)(jian)(jian)議起蠟(la)或整體清(qing)(qing)洗(xi)完畢后重新上(shang)蠟(la)。如何降低石材加(jia)(jia)工(gong)(gong)過(guo)程中產(chan)生的(de)(de)(de)噪(zao)音?石材加(jia)(jia)工(gong)(gong)過(guo)程中不論使用(yong)什么設(she)備(bei)及加(jia)(jia)工(gong)(gong)工(gong)(gong)藝都(dou)難免(mian)會有(you)(you)噪(zao)音的(de)(de)(de)產(chan)生,特(te)別(bie)是在(zai)不規范操(cao)作(zuo)或過(guo)負荷操(cao)作(zuo)時所產(chan)生的(de)(de)(de)強(qiang)烈刺(ci)耳的(de)(de)(de)噪(zao)音會更加(jia)(jia)嚴重影(ying)響周圍的(de)(de)(de)環(huan)境。