才(cai)能真正達到(dao)完美的(de)(de)(de)效果。光線要(yao)(yao)(yao)充足(zu)調(diao)膠(jiao)(jiao)(jiao)時(shi)(shi),盡量(liang)在(zai)(zai)(zai)白天,光照充足(zu)的(de)(de)(de)條件下(xia)(xia)進(jin)行,以(yi)利于分(fen)辨色澤(ze)。要(yao)(yao)(yao)充分(fen)對比調(diao)膠(jiao)(jiao)(jiao)時(shi)(shi),要(yao)(yao)(yao)不(bu)斷與石材進(jin)行對比調(diao)整,直至滿意(yi)的(de)(de)(de)效果為止(zhi)。調(diao)膠(jiao)(jiao)(jiao)分(fen)批(pi)次(ci)同一(yi)個區(qu)域需要(yao)(yao)(yao)的(de)(de)(de)膠(jiao)(jiao)(jiao),應(ying)一(yi)次(ci)調(diao)制完成,不(bu)要(yao)(yao)(yao)多(duo)次(ci)調(diao)膠(jiao)(jiao)(jiao),導(dao)致顏色不(bu)一(yi)。批(pi)刀(dao)的(de)(de)(de)選擇調(diao)膠(jiao)(jiao)(jiao)時(shi)(shi),一(yi)般用(yong)的(de)(de)(de)工(gong)具(ju)是(shi)批(pi)刀(dao)。批(pi)刀(dao)要(yao)(yao)(yao)求(qiu)寬度不(bu)超(chao)過(guo)3寸,越寬,力量(liang)越分(fen)散,膠(jiao)(jiao)(jiao)的(de)(de)(de)均(jun)勻度就不(bu)夠。工(gong)具(ju)選擇批(pi)刀(dao)補(bu)(bu)膠(jiao)(jiao)(jiao)要(yao)(yao)(yao)用(yong)到(dao)批(pi)刀(dao),寬度不(bu)應(ying)超(chao)過(guo)2寸。原因在(zai)(zai)(zai)于防(fang)止(zhi)力量(liang)的(de)(de)(de)過(guo)多(duo)分(fen)散,不(bu)利于膠(jiao)(jiao)(jiao)的(de)(de)(de)滲入(ru)。刀(dao)片補(bu)(bu)膠(jiao)(jiao)(jiao)過(guo)程中,工(gong)人另(ling)一(yi)個必(bi)備的(de)(de)(de)工(gong)具(ju)是(shi)刀(dao)片。目的(de)(de)(de)在(zai)(zai)(zai)于發現污(wu)染,及時(shi)(shi)清除。否則(ze),留在(zai)(zai)(zai)縫隙(xi)(xi)中的(de)(de)(de)污(wu)染,會造成發黑、脫(tuo)膠(jiao)(jiao)(jiao)等(deng)問題。鞋套(tao)為防(fang)止(zhi)灰塵的(de)(de)(de)污(wu)染,施工(gong)人員應(ying)穿戴(dai)鞋套(tao)入(ru)內(nei)施工(gong)。補(bu)(bu)膠(jiao)(jiao)(jiao)操作補(bu)(bu)膠(jiao)(jiao)(jiao)時(shi)(shi),用(yong)批(pi)刀(dao)將調(diao)好的(de)(de)(de)膠(jiao)(jiao)(jiao)橫著(zhu)刮(gua)到(dao)縫隙(xi)(xi)處(chu)(chu),用(yong)力擠壓。再沿縫隙(xi)(xi)處(chu)(chu)豎著(zhu)刮(gua)去多(duo)余的(de)(de)(de)膠(jiao)(jiao)(jiao),合理狀(zhuang)態下(xia)(xia),補(bu)(bu)膠(jiao)(jiao)(jiao)應(ying)在(zai)(zai)(zai)縫隙(xi)(xi)處(chu)(chu)留下(xia)(xia)0.2~0.3mm的(de)(de)(de)凸起(qi)。一(yi)方(fang)面為膠(jiao)(jiao)(jiao)在(zai)(zai)(zai)干(gan)固過(guo)程中留下(xia)(xia)余量(liang),防(fang)止(zhi)沉降出凹槽(cao)。
清理縫隙若縫隙<0.2mm對于縫隙極小的石材拼花,清縫環節,基本上不允許使用機械進行操作。如果采用手提切割機和清縫片等設備,一方面易造成縫隙切割放大;另一方面會產生很高的熱量,導致崩邊等問題,破壞整體裝飾效果。手工清理。選用精工刀片,很薄的那種。有些地方,甚至需要用到更薄的剃須刀片來進行清理。清縫時,速度要慢,避免拼花細節處的破壞。清縫完成后,用大功率的吸塵器,將縫隙處的灰塵吸走。若縫隙>0.2mm拼花面積很(hen)大(da),縫(feng)隙較款(kuan)時,可選用“手提切割機(ji)+0.2mm清(qing)(qing)縫(feng)片”進行(xing)清(qing)(qing)理。清(qing)(qing)縫(feng)深(shen)度要(yao)達到3mm以上,越(yue)深(shen)整體結構強度越(yue)高。清(qing)(qing)縫(feng)時,一定要(yao)保持石材(cai)的原貌,不(bu)要(yao)拓(tuo)寬縫(feng)隙。縫(feng)隙盡(jin)頭(tou)處,不(bu)要(yao)切過了。不(bu)要(yao)切串(chuan)縫(feng)——就(jiu)是不(bu)要(yao)沿(yan)著一條縫(feng)清(qing)(qing)理時,不(bu)小心歪出去。
達州偉奇卡拉拉白大理石石材公司在家(jia)居(ju)裝飾方面(mian),人造(zao)石(shi)材(cai)優(you)越于一(yi)般傳(chuan)統建材(cai)所沒有(you)的(de)(de)(de)(de)耐(nai)(nai)酸(suan)、耐(nai)(nai)堿(jian)、耐(nai)(nai)冷熱、抗沖擊的(de)(de)(de)(de)特點,作為(wei)一(yi)種(zhong)質(zhi)感(gan)佳、色(se)彩(cai)多(duo)的(de)(de)(de)(de)飾材(cai),不(bu)僅能美化(hua)是內(nei)外裝飾,滿足(zu)其設(she)計上的(de)(de)(de)(de)多(duo)樣化(hua)需求,更能為(wei)建筑師和(he)設(she)計師提(ti)供極(ji)為(wei)廣泛的(de)(de)(de)(de)設(she)計空間(jian),以創(chuang)造(zao)空間(jian),表達自(zi)然感(gan)覺。人造(zao)石(shi)材(cai)可(ke)以根據不(bu)同(tong)的(de)(de)(de)(de)要求配方做成(cheng)一(yi)種(zhong)先進的(de)(de)(de)(de)合(he)成(cheng)物(wu),因(yin)其特殊的(de)(de)(de)(de)組成(cheng)成(cheng)份,使它很(hen)難被磨損(sun),又由于顏色(se)和(he)圖案深(shen)及(ji)材(cai)料表里,因(yin)此,可(ke)以對才(cai)質(zhi)中凹(ao)紋(wen)、缺口或刮痕甚至比較嚴重(zhong)的(de)(de)(de)(de)磨損(sun),只要采(cai)取相應的(de)(de)(de)(de)辦法進行翻新,便可(ke)回復如初,向新的(de)(de)(de)(de)一(yi)樣。許多(duo)家(jia)庭在居(ju)室的(de)(de)(de)(de)廚房和(he)衛生間(jian)的(de)(de)(de)(de)裝修中都(dou)采(cai)用了(le)人造(zao)石(shi)材(cai)作臺面(mian)。由于人造(zao)石(shi)材(cai)是模(mo)仿(fang)天(tian)然大理石(shi)的(de)(de)(de)(de)表面(mian)紋(wen)理加工(gong)而成(cheng)的(de)(de)(de)(de),具(ju)有(you)類似大理石(shi)的(de)(de)(de)(de)機理特點,在硬度(du)、光澤及(ji)耐(nai)(nai)磨性(xing)上都(dou)比天(tian)然大理石(shi)好,這種(zhong)樹脂黏度(du)低,易(yi)于成(cheng)型、固化(hua)快,可(ke)在常溫下固化(hua)。而且(qie),人造(zao)石(shi)材(cai)色(se)澤、紋(wen)理細(xi)膩,花紋(wen)圖案可(ke)以由設(she)計者(zhe)自(zi)行控制(zhi)確定,可(ke)任意塑造(zao)成(cheng)100多(duo)種(zhong)色(se)彩(cai)斑斕(lan)、感(gan)覺優(you)雅的(de)(de)(de)(de)不(bu)同(tong)品種(zhong)。豐富的(de)(de)(de)(de)色(se)彩(cai)想象、天(tian)然的(de)(de)(de)(de)色(se)素和(he)不(bu)同(tong)材(cai)質(zhi)的(de)(de)(de)(de)結合(he)可(ke)以創(chuang)造(zao)出(chu)繽紛的(de)(de)(de)(de)色(se)系。
毛(mao)邊(bian)石(shi)(shi)(shi)材(cai)(cai)(cai)加(jia)(jia)(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)技能(neng)毛(mao)邊(bian)重(zhong)慶(qing)(qing)(qing)石(shi)(shi)(shi)材(cai)(cai)(cai)加(jia)(jia)(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)技能(neng)是根(gen)(gen)據(ju)(ju)計劃(hua)或(huo)用(yong)戶需(xu)(xu)要,在已開掘或(huo)切開的(de)(de)塊石(shi)(shi)(shi)、條石(shi)(shi)(shi)、石(shi)(shi)(shi)板的(de)(de)外(wai)表進行加(jia)(jia)(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)的(de)(de)。加(jia)(jia)(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)品種(zhong)(zhong)有(you)粗(cu)鑿(zao)光(guang)(guang)(guang)(一步做(zuo)鑿(zao))、細鑿(zao)光(guang)(guang)(guang)(二步做(zuo)鑿(zao),或(huo)稱點光(guang)(guang)(guang)、豆光(guang)(guang)(guang)、瞪砂地(di))、一斧(fu)(fu)光(guang)(guang)(guang)(一遍(bian)(bian)(bian)(bian)剁(duo)斧(fu)(fu))、二斧(fu)(fu)光(guang)(guang)(guang)(二遍(bian)(bian)(bian)(bian)剁(duo)斧(fu)(fu))、三斧(fu)(fu)光(guang)(guang)(guang)(三遍(bian)(bian)(bian)(bian)剁(duo)斧(fu)(fu))、機刨光(guang)(guang)(guang)、亞(ya)光(guang)(guang)(guang)(粗(cu)磨光(guang)(guang)(guang))、細磨光(guang)(guang)(guang)等幾種(zhong)(zhong)。傳統的(de)(de)加(jia)(jia)(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)是在毛(mao)坯的(de)(de)塊石(shi)(shi)(shi)(荒料)、條石(shi)(shi)(shi)、石(shi)(shi)(shi)板的(de)(de)基礎上(shang)進行分品種(zhong)(zhong)、分層次加(jia)(jia)(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong),根(gen)(gen)據(ju)(ju)用(yong)戶需(xu)(xu)要有(you)粗(cu)鑿(zao)光(guang)(guang)(guang)至細磨光(guang)(guang)(guang)逐(zhu)遍(bian)(bian)(bian)(bian)加(jia)(jia)(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)。例如,用(yong)戶需(xu)(xu)要二斧(fu)(fu)光(guang)(guang)(guang),須經粗(cu)鑿(zao)、細鑿(zao)、一遍(bian)(bian)(bian)(bian)斧(fu)(fu)、二遍(bian)(bian)(bian)(bian)斧(fu)(fu)才行。根(gen)(gen)據(ju)(ju)用(yong)戶的(de)(de)需(xu)(xu)要,重(zhong)慶(qing)(qing)(qing)石(shi)(shi)(shi)材(cai)(cai)(cai)加(jia)(jia)(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)主要由(you)(you)以(yi)下幾種(zhong)(zhong)層次的(de)(de)加(jia)(jia)(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)技能(neng):(1)毛(mao)坯的(de)(de)塊石(shi)(shi)(shi)、條石(shi)(shi)(shi)、石(shi)(shi)(shi)板筑方的(de)(de)加(jia)(jia)(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)技能(neng)。(2)墻面(mian)線(xian)槽(cao)的(de)(de)加(jia)(jia)(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)技能(neng)。(3)線(xian)(腳(jiao))條的(de)(de)加(jia)(jia)(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)技能(neng)。(4)圓形柱(zhu)或(huo)柱(zhu)座加(jia)(jia)(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)技能(neng)(不管全體或(huo)拼裝(zhuang))。(5)建(jian)筑飾面(mian)的(de)(de)花飾、雕琢(即浮雕、圓雕)。(6)蘑菇石(shi)(shi)(shi)與天(tian)然面(mian)(劈毛(mao)石(shi)(shi)(shi))的(de)(de)加(jia)(jia)(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)技能(neng)(用(yong)塊石(shi)(shi)(shi)、條石(shi)(shi)(shi)制(zhi)作)。重(zhong)慶(qing)(qing)(qing)石(shi)(shi)(shi)材(cai)(cai)(cai)加(jia)(jia)(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)為你解析傳統的(de)(de)石(shi)(shi)(shi)材(cai)(cai)(cai)由(you)(you)于加(jia)(jia)(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)設備和(he)(he)加(jia)(jia)(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)技術捆綁(bang),以(yi)及要作為承(cheng)重(zhong)的(de)(de)構(gou)造構(gou)件,所以(yi)加(jia)(jia)(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)出來的(de)(de)石(shi)(shi)(shi)材(cai)(cai)(cai)制(zhi)品一般(ban)比(bi)照厚重(zhong)、粗(cu)糙,但(dan)這些石(shi)(shi)(shi)材(cai)(cai)(cai)制(zhi)品難(nan)以(yi)日(ri)益翻(fan)開和(he)(he)精雕細鏤的(de)(de)需(xu)(xu)求。
噪(zao)(zao)(zao)(zao)(zao)音(yin)所(suo)產(chan)(chan)(chan)(chan)(chan)生(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)(de)(de)(de)危害(hai)是(shi)比(bi)較大的(de)(de)(de)(de)(de)(de),尤其是(shi)表現在(zai)如下幾個(ge)方(fang)面(mian):1、長期在(zai)強烈的(de)(de)(de)(de)(de)(de)噪(zao)(zao)(zao)(zao)(zao)音(yin)環境中(zhong)工作(zuo),可(ke)以使人(ren)產(chan)(chan)(chan)(chan)(chan)生(sheng)(sheng)(sheng)(sheng)噪(zao)(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)性耳聾。2、影響人(ren)們的(de)(de)(de)(de)(de)(de)正(zheng)(zheng)常(chang)工作(zuo)、學(xue)習(xi)及(ji)日(ri)常(chang)生(sheng)(sheng)(sheng)(sheng)活。那么(me)石材加工過程(cheng)中(zhong)噪(zao)(zao)(zao)(zao)(zao)音(yin)是(shi)怎(zen)樣(yang)產(chan)(chan)(chan)(chan)(chan)生(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)(de)(de)(de)呢?它主(zhu)要來自(zi)齒(chi)(chi)(chi)尖(jian)(jian)噪(zao)(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng),鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)(pian)(pian)的(de)(de)(de)(de)(de)(de)振(zhen)(zhen)動(dong)及(ji)物料摩擦聲(sheng)(sheng)(sheng)。齒(chi)(chi)(chi)尖(jian)(jian)噪(zao)(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng):是(shi)當(dang)鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)(pian)(pian)高速(su)(su)運轉(zhuan)(zhuan)(zhuan)時,鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)(pian)(pian)的(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)空(kong)(kong)氣(qi)(qi)(qi)相(xiang)互作(zuo)用,引(yin)起空(kong)(kong)氣(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)壓力(li)脈動(dong)而(er)產(chan)(chan)(chan)(chan)(chan)生(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)(de)(de)(de)噪(zao)(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)。齒(chi)(chi)(chi)尖(jian)(jian)噪(zao)(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)的(de)(de)(de)(de)(de)(de)聲(sheng)(sheng)(sheng)功(gong)率(lv)(lv)與(yu)鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)(pian)(pian)的(de)(de)(de)(de)(de)(de)直徑、鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)(pian)(pian)的(de)(de)(de)(de)(de)(de)線速(su)(su)度(du)的(de)(de)(de)(de)(de)(de)三次(ci)(ci)方(fang)成(cheng)正(zheng)(zheng)比(bi),當(dang)轉(zhuan)(zhuan)(zhuan)速(su)(su)越低時,與(yu)其線速(su)(su)度(du)三次(ci)(ci)方(fang)成(cheng)正(zheng)(zheng)比(bi),齒(chi)(chi)(chi)尖(jian)(jian)噪(zao)(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)的(de)(de)(de)(de)(de)(de)頻率(lv)(lv)可(ke)由下式(shi)計算(suan):式(shi)中(zhong):fi—齒(chi)(chi)(chi)尖(jian)(jian)噪(zao)(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)頻率(lv)(lv),即鋸(ju)(ju)(ju)(ju)(ju)齒(chi)(chi)(chi)每秒(miao)打空(kong)(kong)氣(qi)(qi)(qi)質點的(de)(de)(de)(de)(de)(de)次(ci)(ci)數(shu),(HZ)z—鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)(pian)(pian)的(de)(de)(de)(de)(de)(de)齒(chi)(chi)(chi)數(shu)(個(ge))n—鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)(pian)(pian)的(de)(de)(de)(de)(de)(de)軸的(de)(de)(de)(de)(de)(de)轉(zhuan)(zhuan)(zhuan)速(su)(su)(r/min)i—諧波(bo)序號i=1、2、3……鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)(pian)(pian)旋轉(zhuan)(zhuan)(zhuan)時,每個(ge)齒(chi)(chi)(chi)尖(jian)(jian)產(chan)(chan)(chan)(chan)(chan)生(sheng)(sheng)(sheng)(sheng)單極輻射流,并(bing)周期地(di)通過工作(zuo)臺(tai)的(de)(de)(de)(de)(de)(de)鋸(ju)(ju)(ju)(ju)(ju)縫(feng)向(xiang)外排(pai)出,由于(yu)氣(qi)(qi)(qi)流壓力(li)發(fa)(fa)生(sheng)(sheng)(sheng)(sheng)激烈變化,隨(sui)(sui)之產(chan)(chan)(chan)(chan)(chan)生(sheng)(sheng)(sheng)(sheng)排(pai)氣(qi)(qi)(qi)噪(zao)(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng),排(pai)氣(qi)(qi)(qi)噪(zao)(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)的(de)(de)(de)(de)(de)(de)升功(gong)率(lv)(lv)也隨(sui)(sui)著鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)(pian)(pian)線速(su)(su)度(du)增(zeng)(zeng)大而(er)急劇增(zeng)(zeng)加,它與(yu)氣(qi)(qi)(qi)流速(su)(su)度(du)的(de)(de)(de)(de)(de)(de)6次(ci)(ci)方(fang)成(cheng)正(zheng)(zheng)比(bi),在(zai)線速(su)(su)度(du)較小時,與(yu)其5次(ci)(ci)方(fang)成(cheng)正(zheng)(zheng)比(bi),則排(pai)氣(qi)(qi)(qi)噪(zao)(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)頻率(lv)(lv)為:式(shi)中(zhong):fi—排(pai)氣(qi)(qi)(qi)噪(zao)(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)頻率(lv)(lv),(HZ)z—鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)(pian)(pian)的(de)(de)(de)(de)(de)(de)齒(chi)(chi)(chi)數(shu)(個(ge))n—鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)(pian)(pian)軸的(de)(de)(de)(de)(de)(de)轉(zhuan)(zhuan)(zhuan)速(su)(su)(r/min)i—諧波(bo)序號i=1、2、3……在(zai)鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)(pian)(pian)高速(su)(su)旋轉(zhuan)(zhuan)(zhuan)時,每當(dang)渦流分(fen)離的(de)(de)(de)(de)(de)(de)頻率(lv)(lv)與(yu)鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)(pian)(pian)的(de)(de)(de)(de)(de)(de)固有(you)頻率(lv)(lv)相(xiang)近時,就發(fa)(fa)生(sheng)(sheng)(sheng)(sheng)共(gong)振(zhen)(zhen),便發(fa)(fa)出“尖(jian)(jian)叫(jiao)聲(sheng)(sheng)(sheng)”,其頻率(lv)(lv)為:f=z fr式(shi)中(zhong):z—鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)(pian)(pian)的(de)(de)(de)(de)(de)(de)齒(chi)(chi)(chi)數(shu)(個(ge))fr—軸回(hui)轉(zhuan)(zhuan)(zhuan)頻率(lv)(lv)(HZ)鋸(ju)(ju)(ju)(ju)(ju)片(pian)(pian)(pian)(pian)屬于(yu)薄(bo)壁(bi)件,其剛性一般較差(cha),在(zai)外力(li)的(de)(de)(de)(de)(de)(de)作(zuo)用下很容易產(chan)(chan)(chan)(chan)(chan)生(sheng)(sheng)(sheng)(sheng)振(zhen)(zhen)動(dong),由于(yu)振(zhen)(zhen)動(dong)便容易產(chan)(chan)(chan)(chan)(chan)生(sheng)(sheng)(sheng)(sheng)物料的(de)(de)(de)(de)(de)(de)摩擦,因此該(gai)類的(de)(de)(de)(de)(de)(de)噪(zao)(zao)(zao)(zao)(zao)音(yin)也就隨(sui)(sui)之產(chan)(chan)(chan)(chan)(chan)生(sheng)(sheng)(sheng)(sheng)。
復(fu)合(he)(he)結(jie)構(gou)復(fu)合(he)(he)阻尼(ni)結(jie)構(gou)在減振(zhen)降噪(zao)工程結(jie)構(gou)上也開始應(ying)(ying)用,它是薄(bo)彈(dan)性(xing)(xing)材料(liao)(liao)將幾層(ceng)(ceng)(ceng)(ceng)板粘結(jie)在一起的(de)(de)(de)(de)具(ju)有高(gao)(gao)阻尼(ni)特性(xing)(xing),并(bing)保持金屬(shu)板材料(liao)(liao)強度(du)(du)的(de)(de)(de)(de)約(yue)(yue)束阻尼(ni)層(ceng)(ceng)(ceng)(ceng)結(jie)構(gou),阻尼(ni)層(ceng)(ceng)(ceng)(ceng)厚度(du)(du)為0.10mm。在常溫和高(gao)(gao)溫(80—100℃)下(xia)具(ju)有良好的(de)(de)(de)(de)阻尼(ni)特性(xing)(xing),它對振(zhen)動能量(liang)的(de)(de)(de)(de)消散,從(cong)一般普(pu)通彈(dan)性(xing)(xing)變(bian)形(xing)作(zuo)功力(li)消耗(hao),提(ti)高(gao)(gao)為高(gao)(gao)彈(dan)性(xing)(xing)體(ti)變(bian)形(xing)的(de)(de)(de)(de)做功消耗(hao),使變(bian)形(xing)滯后應(ying)(ying)力(li)的(de)(de)(de)(de)程度(du)(du)增加,另(ling)外,這種(zhong)約(yue)(yue)束阻尼(ni)結(jie)構(gou)拉(la)壓變(bian)形(xing)所消散的(de)(de)(de)(de)能量(liang),消耗(hao)因子一般在0.3以上,大(da)峰(feng)值可(ke)在0.85,并(bing)且是有寬(kuan)頻帶控(kong)制(zhi)特性(xing)(xing),在很(hen)大(da)的(de)(de)(de)(de)頻率范圍(wei)內(nei)起到抑制(zhi)峰(feng)值的(de)(de)(de)(de)作(zuo)用,鋸(ju)片(pian)基體(ti)常用的(de)(de)(de)(de)復(fu)合(he)(he)阻尼(ni)層(ceng)(ceng)(ceng)(ceng)結(jie)構(gou)為2層(ceng)(ceng)(ceng)(ceng)。利用復(fu)合(he)(he)阻尼(ni)結(jie)構(gou)的(de)(de)(de)(de)鋸(ju)片(pian)基體(ti)有如下(xia)特點:(1)鋸(ju)片(pian)的(de)(de)(de)(de)校(xiao)平及(ji)應(ying)(ying)力(li)的(de)(de)(de)(de)調整難(nan)度(du)(du)很(hen)大(da);(2)生產效(xiao)率較低(di),成(cheng)本較高(gao)(gao);(3)加工處理技術不當,基體(ti)會缺乏(fa)軸向剛性(xing)(xing)。安裝及(ji)使用方法降噪(zao)1、夾(jia)盤(pan)(pan)改(gai)造(zao)降噪(zao)(1)在不影響鋸(ju)切高(gao)(gao)度(du)(du)前提(ti)下(xia),應(ying)(ying)盡(jin)量(liang)加大(da)鋸(ju)片(pian)的(de)(de)(de)(de)夾(jia)盤(pan)(pan)直(zhi)徑(jing),這樣可(ke)以提(ti)高(gao)(gao)鋸(ju)片(pian)剛性(xing)(xing),減少彎曲(qu)振(zhen)動,對降低(di)振(zhen)動噪(zao)聲是及(ji)其(qi)有效(xiao)的(de)(de)(de)(de),實(shi)驗研究證明,當夾(jia)盤(pan)(pan)直(zhi)徑(jing)加大(da)到鋸(ju)片(pian)直(zhi)徑(jing)的(de)(de)(de)(de)3/4倍時,減噪(zao)佳(jia)。(2)為了增加鋸(ju)片(pian)的(de)(de)(de)(de)彈(dan)性(xing)(xing),使其(qi)受力(li)均(jun)勻,在夾(jia)盤(pan)(pan)上開一圈(quan)槽,嵌(qian)入橡膠條或軟金屬(shu)。