那么可(ke)以采取那些有效(xiao)措施(shi)能降低(di)噪(zao)音(yin)的(de)(de)(de)產生呢?從鋸(ju)(ju)片(pian)(pian)基體的(de)(de)(de)結(jie)構設計上(shang)(shang)(shang)(shang)達(da)到減(jian)噪(zao)目的(de)(de)(de)1、在不(bu)破(po)壞鋸(ju)(ju)片(pian)(pian)的(de)(de)(de)平(ping)衡(heng)及所需剛(gang)性(xing)的(de)(de)(de)條件下(xia),可(ke)在鋸(ju)(ju)片(pian)(pian)基體上(shang)(shang)(shang)(shang)均勻布置幾個相同(tong)尺寸(cun)的(de)(de)(de)小孔。在孔中高(gao)阻尼(ni)(ni)合金或非金屬物,這樣(yang)(yang)可(ke)以減(jian)弱鋸(ju)(ju)片(pian)(pian)彈性(xing)振動的(de)(de)(de)傳播,消除高(gao)頻噪(zao)音(yin)。2、同(tong)樣(yang)(yang)在不(bu)破(po)壞鋸(ju)(ju)片(pian)(pian)剛(gang)性(xing)的(de)(de)(de)情況(kuang)下(xia),在鋸(ju)(ju)片(pian)(pian)基體上(shang)(shang)(shang)(shang)設有若(ruo)干個等(deng)間距沿(yan)不(bu)同(tong)半徑基圓分布的(de)(de)(de)曲線(或直(zhi)線)型不(bu)同(tong)幾何形狀的(de)(de)(de)消聲(sheng)(sheng)縫隙(xi),消聲(sheng)(sheng)原理是(shi)結(jie)塊(kuai)與(yu)(yu)被切割(ge)材料(liao)間由于(yu)摩擦和撞擊所產生聲(sheng)(sheng)波在基體上(shang)(shang)(shang)(shang)傳播受到阻尼(ni)(ni),使其(qi)余不(bu)參與(yu)(yu)被切割(ge)材料(liao)接觸部位上(shang)(shang)(shang)(shang)的(de)(de)(de)音(yin)頻共振減(jian)少,從而達(da)到了降低(di)噪(zao)聲(sheng)(sheng)強度的(de)(de)(de)目的(de)(de)(de)。
長期以來,國內外(wai)專家(jia)學者對金剛石(shi)(shi)(shi)(shi)工(gong)(gong)(gong)具(ju)鋸切(qie)花崗(gang)巖的(de)(de)(de)(de)加(jia)工(gong)(gong)(gong)機(ji)理(li)、金剛石(shi)(shi)(shi)(shi)工(gong)(gong)(gong)具(ju)的(de)(de)(de)(de)磨損機(ji)理(li),以及(ji)鋸切(qie)加(jia)工(gong)(gong)(gong)過(guo)(guo)程中(zhong)的(de)(de)(de)(de)鋸切(qie)力做了(le)大(da)(da)(da)量試驗和研究,取得了(le)令人矚目的(de)(de)(de)(de)成(cheng)(cheng)(cheng)果(guo),重慶石(shi)(shi)(shi)(shi)材(cai)加(jia)工(gong)(gong)(gong)對石(shi)(shi)(shi)(shi)材(cai)鋸切(qie)加(jia)工(gong)(gong)(gong)及(ji)金剛石(shi)(shi)(shi)(shi)工(gong)(gong)(gong)具(ju)的(de)(de)(de)(de)研究開發起到了(le)積(ji)極的(de)(de)(de)(de)推動(dong)作(zuo)(zuo)用(yong)。裝修石(shi)(shi)(shi)(shi)材(cai)的(de)(de)(de)(de)運用(yong)你可(ke)知怎樣選擇一(yi)般(ban)咱(zan)(zan)們(men)的(de)(de)(de)(de)石(shi)(shi)(shi)(shi)材(cai)多用(yong)于(yu)(yu)修建(jian),機(ji)械方面(mian)(mian),重慶石(shi)(shi)(shi)(shi)材(cai)加(jia)工(gong)(gong)(gong)廠告訴(su)咱(zan)(zan)們(men)多選用(yong)哪些石(shi)(shi)(shi)(shi)材(cai)!1、大(da)(da)(da)理(li)石(shi)(shi)(shi)(shi)大(da)(da)(da)理(li)石(shi)(shi)(shi)(shi)是地殼(ke)華夏有的(de)(de)(de)(de)巖石(shi)(shi)(shi)(shi)經(jing)(jing)過(guo)(guo)地殼(ke)內高(gao)溫高(gao)壓作(zuo)(zuo)用(yong)構(gou)成(cheng)(cheng)(cheng)的(de)(de)(de)(de)變(bian)(bian)質(zhi)巖。地殼(ke)的(de)(de)(de)(de)內力作(zuo)(zuo)用(yong)促進正(zheng)本的(de)(de)(de)(de)各類巖石(shi)(shi)(shi)(shi)發作(zuo)(zuo)質(zhi)的(de)(de)(de)(de)改(gai)動(dong),即正(zheng)本巖石(shi)(shi)(shi)(shi)的(de)(de)(de)(de)構(gou)造、構(gou)造和礦藏成(cheng)(cheng)(cheng)分發作(zuo)(zuo)改(gai)動(dong)。經(jing)(jing)過(guo)(guo)突變(bian)(bian)構(gou)成(cheng)(cheng)(cheng)的(de)(de)(de)(de)新的(de)(de)(de)(de)巖石(shi)(shi)(shi)(shi)稱(cheng)為變(bian)(bian)質(zhi)巖。由于(yu)(yu)石(shi)(shi)(shi)(shi)材(cai)異形(xing)加(jia)工(gong)(gong)(gong)機(ji)械大(da)(da)(da)理(li)石(shi)(shi)(shi)(shi)一(yi)般(ban)都富含雜質(zhi),并且碳(tan)酸鈣在大(da)(da)(da)氣(qi)中(zhong)受(shou)二(er)氧(yang)化(hua)碳(tan)、碳(tan)化(hua)物、水(shui)氣(qi)的(de)(de)(de)(de)作(zuo)(zuo)用(yong),也簡(jian)略(lve)風化(hua)和溶蝕,而使表面(mian)(mian)很快失去光(guang)澤。大(da)(da)(da)理(li)石(shi)(shi)(shi)(shi)一(yi)般(ban)性質(zhi)比照軟,這是相對于(yu)(yu)花崗(gang)石(shi)(shi)(shi)(shi)而言(yan)的(de)(de)(de)(de)。
復合結構(gou)復合阻尼(ni)結構(gou)在(zai)減振降(jiang)噪工程結構(gou)上(shang)也開(kai)始應用(yong),它是(shi)薄(bo)彈性材(cai)料(liao)將(jiang)幾層板粘結在(zai)一(yi)起(qi)(qi)的(de)具(ju)有高(gao)阻尼(ni)特性,并(bing)(bing)保持金(jin)屬(shu)板材(cai)料(liao)強度的(de)約束(shu)阻尼(ni)層結構(gou),阻尼(ni)層厚度為(wei)(wei)0.10mm。在(zai)常溫和(he)高(gao)溫(80—100℃)下具(ju)有良好的(de)阻尼(ni)特性,它對(dui)振動能量(liang)的(de)消(xiao)散,從(cong)一(yi)般(ban)普通彈性變形作(zuo)功(gong)力(li)消(xiao)耗,提(ti)高(gao)為(wei)(wei)高(gao)彈性體(ti)變形的(de)做功(gong)消(xiao)耗,使變形滯(zhi)后應力(li)的(de)程度增加(jia),另外,這(zhe)(zhe)種約束(shu)阻尼(ni)結構(gou)拉壓變形所消(xiao)散的(de)能量(liang),消(xiao)耗因子(zi)一(yi)般(ban)在(zai)0.3以上(shang),大(da)峰值(zhi)可(ke)在(zai)0.85,并(bing)(bing)且是(shi)有寬頻帶控制(zhi)特性,在(zai)很(hen)大(da)的(de)頻率(lv)范(fan)圍內起(qi)(qi)到抑制(zhi)峰值(zhi)的(de)作(zuo)用(yong),鋸(ju)片(pian)(pian)基(ji)體(ti)常用(yong)的(de)復合阻尼(ni)層結構(gou)為(wei)(wei)2層。利用(yong)復合阻尼(ni)結構(gou)的(de)鋸(ju)片(pian)(pian)基(ji)體(ti)有如下特點(dian):(1)鋸(ju)片(pian)(pian)的(de)校平及應力(li)的(de)調整難度很(hen)大(da);(2)生(sheng)產效(xiao)率(lv)較低,成本較高(gao);(3)加(jia)工處理技術不(bu)當,基(ji)體(ti)會缺乏軸向(xiang)剛性。安裝及使用(yong)方法降(jiang)噪1、夾盤(pan)改造降(jiang)噪(1)在(zai)不(bu)影響(xiang)鋸(ju)切高(gao)度前提(ti)下,應盡量(liang)加(jia)大(da)鋸(ju)片(pian)(pian)的(de)夾盤(pan)直(zhi)徑(jing),這(zhe)(zhe)樣可(ke)以提(ti)高(gao)鋸(ju)片(pian)(pian)剛性,減少彎曲振動,對(dui)降(jiang)低振動噪聲是(shi)及其(qi)有效(xiao)的(de),實驗研究證明,當夾盤(pan)直(zhi)徑(jing)加(jia)大(da)到鋸(ju)片(pian)(pian)直(zhi)徑(jing)的(de)3/4倍時,減噪佳。(2)為(wei)(wei)了(le)增加(jia)鋸(ju)片(pian)(pian)的(de)彈性,使其(qi)受力(li)均勻(yun),在(zai)夾盤(pan)上(shang)開(kai)一(yi)圈槽,嵌(qian)入橡膠條或軟(ruan)金(jin)屬(shu)。
黃岡裝修爵士白大理石廠石(shi)材墻(qiang)面有橫縫時(shi)(如(ru)V字縫,凹槽(cao))時(shi),陰角收(shou)口均需45度(角度稍小于45度,以利于拼接)拼接對角處(chu)(chu)(chu)理(li),應在工(gong)(gong)廠(chang)內加工(gong)(gong)完(wan)成。4、石(shi)材檢修門:(1)石(shi)材暗門需采(cai)用(yong)(yong)(yong)熱鍍鋅角剛,角鋼(gang)大小及滾珠軸承大小根(gen)據(ju)門體(ti)的(de)自重選定(ding),焊(han)接部位(wei)作(zuo)防(fang)銹(xiu)處(chu)(chu)(chu)理(li)。(2)石(shi)材干掛或安(an)裝,門邊、框邊切割面需拋光處(chu)(chu)(chu)理(li),鋼(gang)架面采(cai)用(yong)(yong)(yong)防(fang)潮板包封(feng)。(3)門與(yu)框之間安(an)裝限位(wei)鏈(lian)。5、鋼(gang)架臺(tai)(tai)盆(pen)(pen)安(an)裝注(zhu)意(yi)防(fang)銹(xiu)等的(de)處(chu)(chu)(chu)理(li):(1)臺(tai)(tai)盆(pen)(pen)鐵(tie)甲須采(cai)用(yong)(yong)(yong)國標鍍鋅角鋼(gang),焊(han)接處(chu)(chu)(chu)做防(fang)銹(xiu)處(chu)(chu)(chu)理(li)。(2)臺(tai)(tai)盆(pen)(pen)固(gu)(gu)(gu)定(ding)于固(gu)(gu)(gu)定(ding)構件(jian)上,固(gu)(gu)(gu)定(ding)構建(jian)與(yu)石(shi)材墊(dian)(dian)(dian)塊(kuai)用(yong)(yong)(yong)不(bu)銹(xiu)鋼(gang)或鍍鋅螺栓固(gu)(gu)(gu)定(ding),墊(dian)(dian)(dian)塊(kuai)背面及臺(tai)(tai)面粘結部位(wei)需經打毛處(chu)(chu)(chu)理(li)用(yong)(yong)(yong)大理(li)石(shi)膠粘接固(gu)(gu)(gu)定(ding),臺(tai)(tai)盆(pen)(pen)與(yu)固(gu)(gu)(gu)定(ding)構件(jian)連接處(chu)(chu)(chu)需用(yong)(yong)(yong)橡(xiang)皮墊(dian)(dian)(dian)塊(kuai),臺(tai)(tai)盆(pen)(pen)與(yu)臺(tai)(tai)面板下沿口用(yong)(yong)(yong)耐候膠密封(feng)。
清理過(guo)程中,清縫片必須(xu)與(yu)石材(cai)保持90度(du)垂(chui)直,否則會導(dao)致(zhi)石材(cai)崩邊。石材(cai)拼花,是一(yi)種(zhong)很(hen)精(jing)致(zhi)的(de)(de)(de)藝(yi)術(shu)品。以(yi)上(shang)注(zhu)意事項,旨在(zai)防(fang)止破壞其整(zheng)(zheng)體裝飾(shi)效果(guo)。比如,清縫時切過(guo)頭或切串縫,很(hen)不(bu)美觀,影(ying)響(xiang)裝飾(shi)效果(guo)。調膠(jiao)標準(zhun)將膠(jiao)的(de)(de)(de)顏(yan)色調到(dao)與(yu)石材(cai)顏(yan)色高(gao)度(du)一(yi)致(zhi)。方法用云石膠(jiao)+水膠(jiao)或透明(ming)膠(jiao),不(bu)停攪拌,將膠(jiao)調得稀一(yi)些。原(yuan)(yuan)因是拼花的(de)(de)(de)縫隙非常小,又不(bu)能拓寬,必須(xu)增強(qiang)膠(jiao)的(de)(de)(de)流動性(xing),才能有效的(de)(de)(de)滲入。技(ji)(ji)巧和注(zhu)意事項加(jia)入天(tian)然色粉在(zai)調整(zheng)(zheng)膠(jiao)的(de)(de)(de)顏(yan)色時,可視需求,加(jia)入天(tian)然的(de)(de)(de)無機色粉,如石粉,是天(tian)然礦物中提取的(de)(de)(de)物質,可以(yi)達到(dao)與(yu)石材(cai)顏(yan)色非常接近的(de)(de)(de)效果(guo)。不(bu)推薦加(jia)入有機顏(yan)料,原(yuan)(yuan)因是人(ren)工(gong)(gong)(gong)顏(yan)料的(de)(de)(de)色澤比較純粹,無法很(hen)好的(de)(de)(de)模擬自然色澤的(de)(de)(de)天(tian)然石材(cai)。選技(ji)(ji)術(shu)好的(de)(de)(de)工(gong)(gong)(gong)人(ren)要(yao)選擇操作熟(shu)練(lian),顏(yan)色分辨能力強(qiang),又有高(gao)度(du)的(de)(de)(de)責任心(xin)和耐心(xin)的(de)(de)(de)工(gong)(gong)(gong)人(ren),以(yi)對待藝(yi)術(shu)品的(de)(de)(de)態度(du)來操作。