
復(fu)合(he)結(jie)構(gou)復(fu)合(he)阻(zu)(zu)尼(ni)(ni)(ni)結(jie)構(gou)在(zai)減振降(jiang)噪(zao)工程結(jie)構(gou)上也開(kai)始應用,它是薄彈(dan)(dan)性材(cai)料將幾層(ceng)(ceng)板(ban)粘結(jie)在(zai)一起的(de)(de)(de)具有高(gao)(gao)阻(zu)(zu)尼(ni)(ni)(ni)特(te)性,并(bing)保持金(jin)屬(shu)板(ban)材(cai)料強度(du)的(de)(de)(de)約束(shu)阻(zu)(zu)尼(ni)(ni)(ni)層(ceng)(ceng)結(jie)構(gou),阻(zu)(zu)尼(ni)(ni)(ni)層(ceng)(ceng)厚度(du)為(wei)0.10mm。在(zai)常溫(wen)和高(gao)(gao)溫(wen)(80—100℃)下具有良(liang)好的(de)(de)(de)阻(zu)(zu)尼(ni)(ni)(ni)特(te)性,它對振動能量的(de)(de)(de)消(xiao)(xiao)散,從(cong)一般普通彈(dan)(dan)性變形作功(gong)力消(xiao)(xiao)耗(hao),提高(gao)(gao)為(wei)高(gao)(gao)彈(dan)(dan)性體(ti)變形的(de)(de)(de)做功(gong)消(xiao)(xiao)耗(hao),使變形滯后應力的(de)(de)(de)程度(du)增加(jia),另外(wai),這種約束(shu)阻(zu)(zu)尼(ni)(ni)(ni)結(jie)構(gou)拉(la)壓變形所消(xiao)(xiao)散的(de)(de)(de)能量,消(xiao)(xiao)耗(hao)因(yin)子(zi)一般在(zai)0.3以上,大(da)(da)(da)峰值可(ke)在(zai)0.85,并(bing)且是有寬頻(pin)帶控制(zhi)特(te)性,在(zai)很大(da)(da)(da)的(de)(de)(de)頻(pin)率(lv)范(fan)圍內(nei)起到(dao)抑(yi)制(zhi)峰值的(de)(de)(de)作用,鋸(ju)片基(ji)(ji)體(ti)常用的(de)(de)(de)復(fu)合(he)阻(zu)(zu)尼(ni)(ni)(ni)層(ceng)(ceng)結(jie)構(gou)為(wei)2層(ceng)(ceng)。利用復(fu)合(he)阻(zu)(zu)尼(ni)(ni)(ni)結(jie)構(gou)的(de)(de)(de)鋸(ju)片基(ji)(ji)體(ti)有如下特(te)點:(1)鋸(ju)片的(de)(de)(de)校平及(ji)(ji)應力的(de)(de)(de)調整難度(du)很大(da)(da)(da);(2)生產(chan)效率(lv)較低,成本較高(gao)(gao);(3)加(jia)工處(chu)理技(ji)術不當,基(ji)(ji)體(ti)會(hui)缺乏軸向剛性。安裝及(ji)(ji)使用方法降(jiang)噪(zao)1、夾盤(pan)(pan)(pan)改造(zao)降(jiang)噪(zao)(1)在(zai)不影響鋸(ju)切高(gao)(gao)度(du)前提下,應盡(jin)量加(jia)大(da)(da)(da)鋸(ju)片的(de)(de)(de)夾盤(pan)(pan)(pan)直(zhi)徑(jing),這樣可(ke)以提高(gao)(gao)鋸(ju)片剛性,減少彎曲振動,對降(jiang)低振動噪(zao)聲是及(ji)(ji)其有效的(de)(de)(de),實驗研究證明,當夾盤(pan)(pan)(pan)直(zhi)徑(jing)加(jia)大(da)(da)(da)到(dao)鋸(ju)片直(zhi)徑(jing)的(de)(de)(de)3/4倍時,減噪(zao)佳。(2)為(wei)了增加(jia)鋸(ju)片的(de)(de)(de)彈(dan)(dan)性,使其受力均(jun)勻,在(zai)夾盤(pan)(pan)(pan)上開(kai)一圈槽,嵌(qian)入橡膠條或軟(ruan)金(jin)屬(shu)。

鄂州裝修雅典金花大理石廠不銹(xiu)鋼(gang)(gang)(gang)(gang)石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)掛件鋼(gang)(gang)(gang)(gang)號(hao)為202以(yi)上(shang)(shang),或根據項(xiang)目實際需(xu)要采用(yong)304鋼(gang)(gang)(gang)(gang)號(hao)連接配件。(2)石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)厚度(du)(du)要求在20mm以(yi)上(shang)(shang),2500mm高(gao)以(yi)內的(de)墻(qiang)體(ti),豎向需(xu)采用(yong)5#槽鋼(gang)(gang)(gang)(gang),橫(heng)向采用(yong)40mmx40mm型(xing)(xing)角(jiao)鋼(gang)(gang)(gang)(gang),間(jian)距根據石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)的(de)橫(heng)縫(feng)(feng)排(pai)(pai)版確定,2500mm高(gao)以(yi)上(shang)(shang)的(de)墻(qiang)體(ti),豎向需(xu)采用(yong)8#槽鋼(gang)(gang)(gang)(gang),橫(heng)向采50mmx50mm型(xing)(xing)角(jiao)鋼(gang)(gang)(gang)(gang),間(jian)距根據石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)的(de)恒豐排(pai)(pai)版確定。3、膠粘劑粘貼施工(gong)工(gong)藝木基層面(mian)(mian)粘貼石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)工(gong)藝,適(shi)用(yong)于小面(mian)(mian)積、小塊面(mian)(mian)材(cai)(cai)(cai)料施工(gong)范圍(wei)(如文化石(shi)(shi)(shi)(shi)、裝飾(shi)線(xian)、踢腳線(xian)),須用(yong)AB膠結合(he)不銹(xiu)鋼(gang)(gang)(gang)(gang)自(zi)攻螺釘粘接固(gu)定,石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)背面(mian)(mian)應(ying)挖成倒八字型(xing)(xing)孔,要做好防腐處(chu)理。三、墻(qiang)面(mian)(mian)石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)細部(bu)收口要點(dian)1、石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)墻(qiang)面(mian)(mian)橫(heng)縫(feng)(feng),需(xu)根據人體(ti)的(de)視線(xian)高(gao)度(du)(du)排(pai)(pai)布,施工(gong)時需(xu)廠家定加工(gong),現場安(an)裝。2、墻(qiang)面(mian)(mian)石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)陽角(jiao)收口均(jun)需(xu)45度(du)(du)拼(pin)接對角(jiao)處(chu)理;待墻(qiang)面(mian)(mian)石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)全部(bu)鋪貼完成后,須調制與石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)同色的(de)云石(shi)(shi)(shi)(shi)膠作(zuo)勾縫(feng)(feng)處(chu)理,勾縫(feng)(feng)必須嚴密。

那么可以(yi)采取(qu)那些有(you)效措施能降低噪(zao)音(yin)的(de)產生(sheng)呢?從鋸(ju)(ju)片(pian)(pian)(pian)基體(ti)的(de)結構(gou)設計上(shang)達到減(jian)(jian)噪(zao)目的(de)1、在不(bu)破壞鋸(ju)(ju)片(pian)(pian)(pian)的(de)平衡及所需剛性(xing)的(de)條件(jian)下(xia),可在鋸(ju)(ju)片(pian)(pian)(pian)基體(ti)上(shang)均勻布(bu)置(zhi)幾個相同(tong)尺寸的(de)小(xiao)孔。在孔中高(gao)阻尼合金(jin)(jin)或非金(jin)(jin)屬物,這樣可以(yi)減(jian)(jian)弱鋸(ju)(ju)片(pian)(pian)(pian)彈性(xing)振動的(de)傳播,消(xiao)除高(gao)頻噪(zao)音(yin)。2、同(tong)樣在不(bu)破壞鋸(ju)(ju)片(pian)(pian)(pian)剛性(xing)的(de)情況下(xia),在鋸(ju)(ju)片(pian)(pian)(pian)基體(ti)上(shang)設有(you)若干個等(deng)間距沿不(bu)同(tong)半徑基圓分布(bu)的(de)曲線(xian)(或直線(xian))型不(bu)同(tong)幾何形狀的(de)消(xiao)聲(sheng)縫(feng)隙,消(xiao)聲(sheng)原(yuan)理是結塊與被切割材料(liao)間由于摩擦和撞(zhuang)擊所產生(sheng)聲(sheng)波在基體(ti)上(shang)傳播受到阻尼,使其余(yu)不(bu)參與被切割材料(liao)接(jie)觸部(bu)位上(shang)的(de)音(yin)頻共振減(jian)(jian)少,從而達到了降低噪(zao)聲(sheng)強(qiang)度(du)的(de)目的(de)。

加裝隔聲罩(zhao)用(yong)(yong)(yong)隔聲罩(zhao)來降(jiang)(jiang)低鋸片加工時的(de)(de)(de)(de)綜合(he)(he)噪(zao)聲是行(xing)之(zhi)有(you)效的(de)(de)(de)(de),罩(zhao)殼用(yong)(yong)(yong)鋼板(ban)(ban)(ban)制成(cheng),內涂阻(zu)尼材料(liao)(liao)、吸聲材料(liao)(liao),選擇超(chao)細玻璃棉,襯一層玻璃布。并用(yong)(yong)(yong)穿孔(kong)板(ban)(ban)(ban)護面(mian)。罩(zhao)殼、吸聲材料(liao)(liao)、穿孔(kong)板(ban)(ban)(ban)相對固定以防止設備運轉造(zao)成(cheng)系統(tong)共振引起新的(de)(de)(de)(de)噪(zao)音(yin)。措施與(yu)能達到的(de)(de)(de)(de)降(jiang)(jiang)噪(zao)效果:(1)基體采用(yong)(yong)(yong)復(fu)合(he)(he)結構可以降(jiang)(jiang)噪(zao)10分(fen)貝左(zuo)右(you)(2)減(jian)振法蘭盤(pan)可以降(jiang)(jiang)噪(zao)3分(fen)貝左(zuo)右(you)(3)基體采用(yong)(yong)(yong)消(xiao)音(yin)孔(kong)或(huo)消(xiao)音(yin)縫5分(fen)貝左(zuo)右(you)(4)整體隔音(yin)罩(zhao)10分(fen)貝左(zuo)右(you)簡析(xi)人造(zao)石的(de)(de)(de)(de)用(yong)(yong)(yong)途(tu)人造(zao)石材從誕(dan)生(sheng)至(zhi)今(jin)經歷幾十年的(de)(de)(de)(de)研究、開(kai)發(fa)和創(chuang)新,使(shi)人造(zao)石材能開(kai)發(fa)多種材料(liao)(liao)廣(guang)泛應用(yong)(yong)(yong)與(yu)商業、住宅、甚至(zhi)軍事領(ling)域等。在商業用(yong)(yong)(yong)途(tu)上(shang),人造(zao)石材的(de)(de)(de)(de)使(shi)用(yong)(yong)(yong)幾乎不受限制。根(gen)據(ju)產品的(de)(de)(de)(de)適應性,它可用(yong)(yong)(yong)于健康(kang)中心、醫療機構、公(gong)共寫字樓、廠礦公(gong)司、購物(wu)中心等空間(jian)里的(de)(de)(de)(de)設備設施。

顏色與質材相(xiang)得益(yi)彰(zhang),設計(ji)的(de)空間會因(yin)此更加廣闊(kuo),人(ren)(ren)(ren)的(de)激情也(ye)會因(yin)此而常(chang)有(you)常(chang)新!人(ren)(ren)(ren)造(zao)石(shi)(shi)材種(zhong)類與特(te)點及其(qi)石(shi)(shi)材用(yong)(yong)途一、人(ren)(ren)(ren)造(zao)石(shi)(shi)材的(de)種(zhong)類(1)按(an)(an)出產(chan)所用(yong)(yong)的(de)材料(liao)人(ren)(ren)(ren)造(zao)大(da)理(li)(li)石(shi)(shi)重要分為:水(shui)(shui)泥(ni)型(xing)(xing)(xing)(xing)人(ren)(ren)(ren)造(zao)大(da)理(li)(li)石(shi)(shi)、樹(shu)脂型(xing)(xing)(xing)(xing)人(ren)(ren)(ren)造(zao)大(da)理(li)(li)石(shi)(shi)、復合(he)型(xing)(xing)(xing)(xing)人(ren)(ren)(ren)造(zao)大(da)理(li)(li)石(shi)(shi)、燒結(jie)型(xing)(xing)(xing)(xing)人(ren)(ren)(ren)造(zao)大(da)理(li)(li)石(shi)(shi)。這(zhe)四種(zhong)制作(zuo)人(ren)(ren)(ren)造(zao)大(da)理(li)(li)石(shi)(shi)的(de)方法中,常(chang)用(yong)(yong)的(de)是聚酯(zhi)型(xing)(xing)(xing)(xing)人(ren)(ren)(ren)造(zao)大(da)理(li)(li)石(shi)(shi),其(qi)物理(li)(li)和化(hua)學機能好(hao)(hao),花紋輕易(yi)設計(ji),有(you)重現(xian)性(xing)(xing),適(shi)(shi)于(yu)多種(zhong)用(yong)(yong)處(chu),但(dan)價(jia)格絕對較高(gao);水(shui)(shui)泥(ni)型(xing)(xing)(xing)(xing)人(ren)(ren)(ren)造(zao)大(da)理(li)(li)石(shi)(shi)價(jia)錢低廉,但(dan)耐腐化(hua)性(xing)(xing)能較差,容易(yi)呈現(xian)微(wei)龜裂,適(shi)(shi)于(yu)作(zuo)板材而不適(shi)(shi)于(yu)作(zuo)衛生(sheng)潔具(ju);復合(he)型(xing)(xing)(xing)(xing)則綜合(he)了前(qian)兩者的(de)長處(chu),既(ji)有(you)良好(hao)(hao)的(de)物化(hua)性(xing)(xing)能,本錢也(ye)較低;燒結(jie)型(xing)(xing)(xing)(xing)人(ren)(ren)(ren)造(zao)大(da)理(li)(li)石(shi)(shi)固(gu)然(ran)只用(yong)(yong)粘土作(zuo)膠粘劑,但(dan)需經高(gao)溫焙燒,因(yin)此能耗大(da),造(zao)價(jia)高(gao),而且產(chan)品(pin)破損率高(gao)。(2)按(an)(an)使用(yong)(yong)品(pin)名分類為:1、亞克力(li)石(shi)(shi):一種(zhong)化(hua)學樹(shu)脂合(he)成材料(liao),清潔,多用(yong)(yong)于(yu)廚(chu)房(fang)臺面(mian),易(yi)成型(xing)(xing)(xing)(xing),防水(shui)(shui)性(xing)(xing)好(hao)(hao),無色差,但(dan)易(yi)劃傷。