噪(zao)(zao)音(yin)所產(chan)生(sheng)的(de)(de)(de)(de)(de)(de)(de)(de)危害是比(bi)較大(da)的(de)(de)(de)(de)(de)(de)(de)(de),尤其(qi)是表現在(zai)如下幾個方(fang)面(mian):1、長期在(zai)強烈的(de)(de)(de)(de)(de)(de)(de)(de)噪(zao)(zao)音(yin)環境中(zhong)工作,可(ke)以(yi)使人(ren)產(chan)生(sheng)噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)性耳聾。2、影(ying)響人(ren)們的(de)(de)(de)(de)(de)(de)(de)(de)正常工作、學習及日常生(sheng)活。那么(me)石材加工過程中(zhong)噪(zao)(zao)音(yin)是怎樣產(chan)生(sheng)的(de)(de)(de)(de)(de)(de)(de)(de)呢?它主(zhu)要來自(zi)齒(chi)(chi)(chi)尖(jian)噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng),鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)的(de)(de)(de)(de)(de)(de)(de)(de)振動(dong)(dong)及物(wu)料摩擦聲(sheng)(sheng)(sheng)(sheng)(sheng)。齒(chi)(chi)(chi)尖(jian)噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng):是當(dang)鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)高速(su)(su)(su)運轉(zhuan)(zhuan)時(shi),鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)的(de)(de)(de)(de)(de)(de)(de)(de)鋸(ju)(ju)(ju)(ju)(ju)齒(chi)(chi)(chi)與(yu)周圍的(de)(de)(de)(de)(de)(de)(de)(de)空氣相互作用,引起(qi)空氣的(de)(de)(de)(de)(de)(de)(de)(de)壓(ya)力脈動(dong)(dong)而(er)(er)產(chan)生(sheng)的(de)(de)(de)(de)(de)(de)(de)(de)噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)。齒(chi)(chi)(chi)尖(jian)噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)(de)(de)(de)(de)(de)聲(sheng)(sheng)(sheng)(sheng)(sheng)功(gong)率(lv)與(yu)鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)的(de)(de)(de)(de)(de)(de)(de)(de)直(zhi)徑、鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)的(de)(de)(de)(de)(de)(de)(de)(de)線(xian)速(su)(su)(su)度的(de)(de)(de)(de)(de)(de)(de)(de)三次方(fang)成正比(bi),當(dang)轉(zhuan)(zhuan)速(su)(su)(su)越低(di)時(shi),與(yu)其(qi)線(xian)速(su)(su)(su)度三次方(fang)成正比(bi),齒(chi)(chi)(chi)尖(jian)噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)(de)(de)(de)(de)(de)頻(pin)率(lv)可(ke)由下式(shi)(shi)計算:式(shi)(shi)中(zhong):fi—齒(chi)(chi)(chi)尖(jian)噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)頻(pin)率(lv),即鋸(ju)(ju)(ju)(ju)(ju)齒(chi)(chi)(chi)每秒打空氣質點的(de)(de)(de)(de)(de)(de)(de)(de)次數(shu),(HZ)z—鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)的(de)(de)(de)(de)(de)(de)(de)(de)齒(chi)(chi)(chi)數(shu)(個)n—鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)的(de)(de)(de)(de)(de)(de)(de)(de)軸(zhou)的(de)(de)(de)(de)(de)(de)(de)(de)轉(zhuan)(zhuan)速(su)(su)(su)(r/min)i—諧波序號i=1、2、3……鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)旋轉(zhuan)(zhuan)時(shi),每個齒(chi)(chi)(chi)尖(jian)產(chan)生(sheng)單極輻射流,并周期地(di)通(tong)過工作臺的(de)(de)(de)(de)(de)(de)(de)(de)鋸(ju)(ju)(ju)(ju)(ju)縫向外排(pai)(pai)出(chu),由于氣流壓(ya)力發(fa)(fa)生(sheng)激烈變化,隨之(zhi)產(chan)生(sheng)排(pai)(pai)氣噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng),排(pai)(pai)氣噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)(de)(de)(de)(de)(de)升功(gong)率(lv)也隨著鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)線(xian)速(su)(su)(su)度增大(da)而(er)(er)急劇增加,它與(yu)氣流速(su)(su)(su)度的(de)(de)(de)(de)(de)(de)(de)(de)6次方(fang)成正比(bi),在(zai)線(xian)速(su)(su)(su)度較小時(shi),與(yu)其(qi)5次方(fang)成正比(bi),則(ze)排(pai)(pai)氣噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)頻(pin)率(lv)為:式(shi)(shi)中(zhong):fi—排(pai)(pai)氣噪(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)頻(pin)率(lv),(HZ)z—鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)的(de)(de)(de)(de)(de)(de)(de)(de)齒(chi)(chi)(chi)數(shu)(個)n—鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)軸(zhou)的(de)(de)(de)(de)(de)(de)(de)(de)轉(zhuan)(zhuan)速(su)(su)(su)(r/min)i—諧波序號i=1、2、3……在(zai)鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)高速(su)(su)(su)旋轉(zhuan)(zhuan)時(shi),每當(dang)渦流分離的(de)(de)(de)(de)(de)(de)(de)(de)頻(pin)率(lv)與(yu)鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)的(de)(de)(de)(de)(de)(de)(de)(de)固有(you)頻(pin)率(lv)相近時(shi),就發(fa)(fa)生(sheng)共振,便發(fa)(fa)出(chu)“尖(jian)叫(jiao)聲(sheng)(sheng)(sheng)(sheng)(sheng)”,其(qi)頻(pin)率(lv)為:f=z fr式(shi)(shi)中(zhong):z—鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)的(de)(de)(de)(de)(de)(de)(de)(de)齒(chi)(chi)(chi)數(shu)(個)fr—軸(zhou)回轉(zhuan)(zhuan)頻(pin)率(lv)(HZ)鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)屬于薄壁件,其(qi)剛性一般(ban)較差(cha),在(zai)外力的(de)(de)(de)(de)(de)(de)(de)(de)作用下很(hen)容(rong)易產(chan)生(sheng)振動(dong)(dong),由于振動(dong)(dong)便容(rong)易產(chan)生(sheng)物(wu)料的(de)(de)(de)(de)(de)(de)(de)(de)摩擦,因此該類的(de)(de)(de)(de)(de)(de)(de)(de)噪(zao)(zao)音(yin)也就隨之(zhi)產(chan)生(sheng)。
渝北裝修星空灰大理石公司在室(shi)內(nei)裝(zhuang)修中,電視機臺(tai)面(mian)、窗臺(tai)、室(shi)內(nei)地上等適宜運(yun)用大(da)理石(shi)(shi)(shi)(shi)(shi)。2、花(hua)崗石(shi)(shi)(shi)(shi)(shi)是火(huo)成(cheng)(cheng)巖(yan),也叫酸性結(jie)晶深成(cheng)(cheng)巖(yan),是火(huo)成(cheng)(cheng)巖(yan)中散布廣的(de)(de)(de)(de)(de)一種(zhong)巖(yan)石(shi)(shi)(shi)(shi)(shi),由長石(shi)(shi)(shi)(shi)(shi)、石(shi)(shi)(shi)(shi)(shi)英(ying)(ying)和云母構成(cheng)(cheng),巖(yan)質(zhi)(zhi)鞏(gong)固密(mi)實。其(qi)成(cheng)(cheng)分(fen)以(yi)二氧化(hua)硅為主(zhu),約占65%-75%。所謂火(huo)成(cheng)(cheng)巖(yan)便是地下巖(yan)漿或火(huo)山(shan)噴溢的(de)(de)(de)(de)(de)熔巖(yan)冷凝(ning)結(jie)晶而成(cheng)(cheng)的(de)(de)(de)(de)(de)巖(yan)石(shi)(shi)(shi)(shi)(shi)。櫥(chu)柜臺(tai)面(mian)加工(gong)機械(xie)的(de)(de)(de)(de)(de)火(huo)成(cheng)(cheng)巖(yan)中二氧化(hua)硅的(de)(de)(de)(de)(de)含量、重慶石(shi)(shi)(shi)(shi)(shi)材(cai)(cai)加工(gong)長石(shi)(shi)(shi)(shi)(shi)的(de)(de)(de)(de)(de)性質(zhi)(zhi)及其(qi)含量抉擇了石(shi)(shi)(shi)(shi)(shi)材(cai)(cai)的(de)(de)(de)(de)(de)性質(zhi)(zhi)。門檻(jian)、櫥(chu)柜臺(tai)面(mian)、室(shi)外地上就適宜運(yun)用花(hua)崗石(shi)(shi)(shi)(shi)(shi)。其(qi)間櫥(chu)柜臺(tai)面(mian)好是運(yun)用深色(se)的(de)(de)(de)(de)(de)花(hua)崗石(shi)(shi)(shi)(shi)(shi)。3、文化(hua)石(shi)(shi)(shi)(shi)(shi)天然(ran)文化(hua)石(shi)(shi)(shi)(shi)(shi):天然(ran)文化(hua)石(shi)(shi)(shi)(shi)(shi)是發掘于天然(ran)界的(de)(de)(de)(de)(de)石(shi)(shi)(shi)(shi)(shi)材(cai)(cai),其(qi)間的(de)(de)(de)(de)(de)板巖(yan)、砂巖(yan)、石(shi)(shi)(shi)(shi)(shi)英(ying)(ying)石(shi)(shi)(shi)(shi)(shi),經過加工(gong)變成(cheng)(cheng)一種(zhong)裝(zhuang)修建材(cai)(cai)。天然(ran)文化(hua)石(shi)(shi)(shi)(shi)(shi)質(zhi)(zhi)料(liao)鞏(gong)固、色(se)澤鮮明、紋理豐盛(sheng)、風格(ge)各異,具有(you)抗壓、耐(nai)磨、耐(nai)火(huo)、耐(nai)寒、耐(nai)腐蝕、吸水率(lv)低等特征。人(ren)工(gong)文化(hua)石(shi)(shi)(shi)(shi)(shi):人(ren)工(gong)文化(hua)石(shi)(shi)(shi)(shi)(shi)是選用硅鈣、石(shi)(shi)(shi)(shi)(shi)膏等材(cai)(cai)料(liao)精(jing)制而成(cheng)(cheng)的(de)(de)(de)(de)(de)。
清(qing)理(li)過(guo)程中(zhong),清(qing)縫(feng)片必(bi)(bi)須與石材保持90度(du)垂(chui)直(zhi),否(fou)則會導(dao)致石材崩邊。石材拼花,是(shi)一種很(hen)精致的藝術品。以上注意(yi)事(shi)項,旨在防止破壞(huai)其整體裝飾效果。比(bi)如,清(qing)縫(feng)時切過(guo)頭或切串縫(feng),很(hen)不(bu)美(mei)觀(guan),影響裝飾效果。調(diao)膠(jiao)標準將(jiang)膠(jiao)的顏(yan)(yan)色(se)(se)調(diao)到(dao)與石材顏(yan)(yan)色(se)(se)高(gao)(gao)度(du)一致。方法用云石膠(jiao)+水膠(jiao)或透(tou)明膠(jiao),不(bu)停攪拌,將(jiang)膠(jiao)調(diao)得稀一些。原(yuan)因(yin)是(shi)拼花的縫(feng)隙非常(chang)小,又不(bu)能(neng)拓寬,必(bi)(bi)須增強膠(jiao)的流(liu)動(dong)性,才能(neng)有效的滲(shen)入(ru)。技(ji)巧和(he)(he)注意(yi)事(shi)項加入(ru)天然(ran)色(se)(se)粉在調(diao)整膠(jiao)的顏(yan)(yan)色(se)(se)時,可視需求,加入(ru)天然(ran)的無機色(se)(se)粉,如石粉,是(shi)天然(ran)礦物中(zhong)提取的物質,可以達到(dao)與石材顏(yan)(yan)色(se)(se)非常(chang)接近(jin)的效果。不(bu)推薦加入(ru)有機顏(yan)(yan)料,原(yuan)因(yin)是(shi)人工(gong)顏(yan)(yan)料的色(se)(se)澤比(bi)較純粹,無法很(hen)好的模擬(ni)自然(ran)色(se)(se)澤的天然(ran)石材。選(xuan)技(ji)術好的工(gong)人要(yao)選(xuan)擇操(cao)作熟練,顏(yan)(yan)色(se)(se)分辨能(neng)力(li)強,又有高(gao)(gao)度(du)的責任心和(he)(he)耐心的工(gong)人,以對待藝術品的態(tai)度(du)來操(cao)作。
加裝隔(ge)聲(sheng)(sheng)罩(zhao)用(yong)(yong)(yong)隔(ge)聲(sheng)(sheng)罩(zhao)來(lai)降(jiang)低鋸片加工時的(de)綜合噪(zao)(zao)聲(sheng)(sheng)是行之(zhi)有(you)效(xiao)的(de),罩(zhao)殼用(yong)(yong)(yong)鋼(gang)板(ban)制成,內(nei)涂阻尼材(cai)(cai)料、吸(xi)聲(sheng)(sheng)材(cai)(cai)料,選擇超細玻璃棉(mian),襯一(yi)層玻璃布。并(bing)用(yong)(yong)(yong)穿孔(kong)板(ban)護面。罩(zhao)殼、吸(xi)聲(sheng)(sheng)材(cai)(cai)料、穿孔(kong)板(ban)相對固定以防止設(she)(she)備運轉(zhuan)造(zao)(zao)成系統共(gong)振引起新的(de)噪(zao)(zao)音。措(cuo)施與能(neng)達到的(de)降(jiang)噪(zao)(zao)效(xiao)果:(1)基體(ti)采(cai)(cai)用(yong)(yong)(yong)復合結構可以降(jiang)噪(zao)(zao)10分(fen)貝(bei)左(zuo)右(you)(2)減振法蘭盤可以降(jiang)噪(zao)(zao)3分(fen)貝(bei)左(zuo)右(you)(3)基體(ti)采(cai)(cai)用(yong)(yong)(yong)消(xiao)音孔(kong)或(huo)消(xiao)音縫5分(fen)貝(bei)左(zuo)右(you)(4)整體(ti)隔(ge)音罩(zhao)10分(fen)貝(bei)左(zuo)右(you)簡析(xi)人(ren)(ren)造(zao)(zao)石(shi)的(de)用(yong)(yong)(yong)途人(ren)(ren)造(zao)(zao)石(shi)材(cai)(cai)從誕生至(zhi)今經歷幾十(shi)年的(de)研究、開發(fa)和創新,使(shi)人(ren)(ren)造(zao)(zao)石(shi)材(cai)(cai)能(neng)開發(fa)多種(zhong)材(cai)(cai)料廣泛應用(yong)(yong)(yong)與商業、住宅、甚至(zhi)軍事領域等。在(zai)商業用(yong)(yong)(yong)途上,人(ren)(ren)造(zao)(zao)石(shi)材(cai)(cai)的(de)使(shi)用(yong)(yong)(yong)幾乎不(bu)受限制。根(gen)據產品的(de)適應性,它可用(yong)(yong)(yong)于健(jian)康中(zhong)心(xin)、醫療機構、公共(gong)寫字(zi)樓、廠(chang)礦(kuang)公司、購物中(zhong)心(xin)等空間里的(de)設(she)(she)備設(she)(she)施。
不只可(ke)以(yi)降低石(shi)(shi)材(cai)裝修本(ben)錢,重(zhong)(zhong)慶石(shi)(shi)材(cai)加(jia)工廠而且可(ke)以(yi)節約和(he)(he)有(you)用(yong)(yong)運用(yong)(yong)有(you)限的(de)(de)(de)貴重(zhong)(zhong)石(shi)(shi)材(cai)本(ben)錢。除可(ke)直接粘(zhan)貼外(wai),還(huan)可(ke)以(yi)制成蜂(feng)窩板(ban)(ban)(ban)(ban)(ban)、復合板(ban)(ban)(ban)(ban)(ban)等;而且經國外(wai)建(jian)筑物運用(yong)(yong)超(chao)薄板(ban)(ban)(ban)(ban)(ban)證明,超(chao)薄型天然(ran)石(shi)(shi)材(cai)能較好的(de)(de)(de)飽嘗地震、熱(re)脹冷縮等各類(lei)惡劣環境的(de)(de)(de)檢查(cha)。啥樣(yang)的(de)(de)(de)石(shi)(shi)板(ban)(ban)(ban)(ban)(ban)瓦(wa)才是好的(de)(de)(de)石(shi)(shi)板(ban)(ban)(ban)(ban)(ban)瓦(wa)重(zhong)(zhong)慶石(shi)(shi)材(cai)加(jia)工廠告訴(su)你啥樣(yang)的(de)(de)(de)石(shi)(shi)板(ban)(ban)(ban)(ban)(ban)瓦(wa)才是好的(de)(de)(de)石(shi)(shi)板(ban)(ban)(ban)(ban)(ban)瓦(wa)高硅,低鈣(gai)、鐵、鎂(mei)、鋁(lv)、黑度(du)深、色(se)差小、可(ke)劈(pi)分性高、表(biao)面平整(zheng)度(du)好,二氧化硅的(de)(de)(de)凹凸(tu)會觸及板(ban)(ban)(ban)(ban)(ban)質(zhi)的(de)(de)(de)硬度(du)和(he)(he)吸水(shui)率(lv),我國(R1)、德國、美國(S1)的(de)(de)(de)板(ban)(ban)(ban)(ban)(ban)石(shi)(shi)規(gui)范(fan)(fan)來說,低硅的(de)(de)(de)板(ban)(ban)(ban)(ban)(ban)材(cai)因其抗壓強度(du)和(he)(he)吸水(shui)率(lv)的(de)(de)(de)缺少不能用(yong)(yong)來做屋面瓦(wa)板(ban)(ban)(ban)(ban)(ban),高鈣(gai)的(de)(de)(de)板(ban)(ban)(ban)(ban)(ban)材(cai)易褪(tun)色(se)、風(feng)化,高金屬元(yuan)素的(de)(de)(de)易于空氣中的(de)(de)(de)硫元(yuan)素反應致使(shi)老化開裂(lie),具體請參看國度(du)板(ban)(ban)(ban)(ban)(ban)石(shi)(shi)查(cha)驗規(gui)范(fan)(fan)GB 18600,我國國度(du)天然(ran)板(ban)(ban)(ban)(ban)(ban)石(shi)(shi)僅(jin)有(you)的(de)(de)(de)查(cha)驗規(gui)范(fan)(fan)。