一(yi)(yi)觀(guan)(guan):肉(rou)眼觀(guan)(guan)察石(shi)(shi)(shi)(shi)(shi)材(cai)的(de)(de)(de)(de)(de)(de)表(biao)面(mian)(mian)結(jie)構石(shi)(shi)(shi)(shi)(shi)材(cai)的(de)(de)(de)(de)(de)(de)好(hao)壞肉(rou)眼即能(neng)(neng)分辨,好(hao)的(de)(de)(de)(de)(de)(de)石(shi)(shi)(shi)(shi)(shi)材(cai)表(biao)面(mian)(mian)細(xi)致(zhi)光滑,質量(liang)(liang)(liang)差(cha)的(de)(de)(de)(de)(de)(de)石(shi)(shi)(shi)(shi)(shi)材(cai)表(biao)面(mian)(mian)粗糙不(bu)(bu)(bu)平,表(biao)面(mian)(mian)呈顆粒狀(zhuang)組(zu)合。此外,石(shi)(shi)(shi)(shi)(shi)材(cai)邊(bian)緣也要(yao)仔細(xi)觀(guan)(guan)察,是(shi)(shi)(shi)否有缺口,細(xi)微的(de)(de)(de)(de)(de)(de)裂(lie)痕(hen)等,對日后(hou)使用(yong)(yong)有著不(bu)(bu)(bu)小(xiao)的(de)(de)(de)(de)(de)(de)影響(xiang)。二量(liang)(liang)(liang):量(liang)(liang)(liang)石(shi)(shi)(shi)(shi)(shi)材(cai)的(de)(de)(de)(de)(de)(de)尺(chi)(chi)寸規格在買石(shi)(shi)(shi)(shi)(shi)材(cai)之(zhi)前,一(yi)(yi)定要(yao)先量(liang)(liang)(liang)好(hao)裝修(xiu)尺(chi)(chi)寸,然后(hou)購(gou)買石(shi)(shi)(shi)(shi)(shi)材(cai)時(shi)也要(yao)對石(shi)(shi)(shi)(shi)(shi)材(cai)進行測量(liang)(liang)(liang),一(yi)(yi)定要(yao)買合適尺(chi)(chi)寸的(de)(de)(de)(de)(de)(de),以免后(hou)續石(shi)(shi)(shi)(shi)(shi)材(cai)不(bu)(bu)(bu)夠需要(yao)拼接,這樣極(ji)其影響(xiang)美觀(guan)(guan)度(du)。三聽:聽石(shi)(shi)(shi)(shi)(shi)材(cai)的(de)(de)(de)(de)(de)(de)敲(qiao)擊聲音(yin)(yin)(yin)一(yi)(yi)般好(hao)的(de)(de)(de)(de)(de)(de)石(shi)(shi)(shi)(shi)(shi)材(cai)敲(qiao)擊起來聲音(yin)(yin)(yin)十分清脆,原因是(shi)(shi)(shi)石(shi)(shi)(shi)(shi)(shi)材(cai)內部(bu)質地(di)(di)均勻無裂(lie)隙(xi);相反,質量(liang)(liang)(liang)不(bu)(bu)(bu)好(hao)的(de)(de)(de)(de)(de)(de)石(shi)(shi)(shi)(shi)(shi)材(cai)敲(qiao)擊聲音(yin)(yin)(yin)相當粗啞,因其質地(di)(di)不(bu)(bu)(bu)勻且里面(mian)(mian)很(hen)可能(neng)(neng)存在裂(lie)隙(xi)。四(si)試(shi)(shi):用(yong)(yong)簡單的(de)(de)(de)(de)(de)(de)試(shi)(shi)驗(yan)方法來檢驗(yan)石(shi)(shi)(shi)(shi)(shi)材(cai)質量(liang)(liang)(liang)好(hao)壞墨(mo)水滴滲(shen)法是(shi)(shi)(shi)很(hen)常(chang)用(yong)(yong)的(de)(de)(de)(de)(de)(de)檢驗(yan)石(shi)(shi)(shi)(shi)(shi)材(cai)質量(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)方法,將一(yi)(yi)小(xiao)滴墨(mo)水滴在石(shi)(shi)(shi)(shi)(shi)材(cai)背面(mian)(mian),若深入石(shi)(shi)(shi)(shi)(shi)材(cai)內部(bu)則說(shuo)明石(shi)(shi)(shi)(shi)(shi)材(cai)質地(di)(di)不(bu)(bu)(bu)細(xi)致(zhi),是(shi)(shi)(shi)質量(liang)(liang)(liang)差(cha)的(de)(de)(de)(de)(de)(de)石(shi)(shi)(shi)(shi)(shi)材(cai),反之(zhi),若不(bu)(bu)(bu)能(neng)(neng)滲(shen)入則說(shuo)面(mian)(mian)石(shi)(shi)(shi)(shi)(shi)材(cai)質量(liang)(liang)(liang)較好(hao)。
噪(zao)(zao)(zao)(zao)(zao)(zao)音(yin)所產生(sheng)(sheng)的(de)(de)(de)危(wei)害是比較大的(de)(de)(de),尤(you)其(qi)是表現在(zai)如下幾(ji)個(ge)(ge)方(fang)面(mian):1、長期在(zai)強(qiang)烈的(de)(de)(de)噪(zao)(zao)(zao)(zao)(zao)(zao)音(yin)環(huan)境中(zhong)工(gong)作(zuo)(zuo),可(ke)以使人產生(sheng)(sheng)噪(zao)(zao)(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)性耳(er)聾(long)。2、影響人們的(de)(de)(de)正(zheng)(zheng)常工(gong)作(zuo)(zuo)、學習(xi)及(ji)日常生(sheng)(sheng)活。那么石材(cai)加工(gong)過程中(zhong)噪(zao)(zao)(zao)(zao)(zao)(zao)音(yin)是怎樣產生(sheng)(sheng)的(de)(de)(de)呢?它主要來(lai)自齒(chi)(chi)(chi)(chi)尖(jian)(jian)噪(zao)(zao)(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng),鋸(ju)(ju)片(pian)(pian)的(de)(de)(de)振動及(ji)物料摩(mo)擦(ca)聲(sheng)(sheng)(sheng)(sheng)。齒(chi)(chi)(chi)(chi)尖(jian)(jian)噪(zao)(zao)(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng):是當鋸(ju)(ju)片(pian)(pian)高速(su)運轉(zhuan)(zhuan)時,鋸(ju)(ju)片(pian)(pian)的(de)(de)(de)鋸(ju)(ju)齒(chi)(chi)(chi)(chi)與周圍(wei)的(de)(de)(de)空氣相互作(zuo)(zuo)用,引起(qi)空氣的(de)(de)(de)壓(ya)力脈動而產生(sheng)(sheng)的(de)(de)(de)噪(zao)(zao)(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)。齒(chi)(chi)(chi)(chi)尖(jian)(jian)噪(zao)(zao)(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)聲(sheng)(sheng)(sheng)(sheng)功率(lv)(lv)(lv)與鋸(ju)(ju)片(pian)(pian)的(de)(de)(de)直徑、鋸(ju)(ju)片(pian)(pian)的(de)(de)(de)線(xian)速(su)度(du)的(de)(de)(de)三次方(fang)成正(zheng)(zheng)比,當轉(zhuan)(zhuan)速(su)越低時,與其(qi)線(xian)速(su)度(du)三次方(fang)成正(zheng)(zheng)比,齒(chi)(chi)(chi)(chi)尖(jian)(jian)噪(zao)(zao)(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)頻率(lv)(lv)(lv)可(ke)由(you)下式計算:式中(zhong):fi—齒(chi)(chi)(chi)(chi)尖(jian)(jian)噪(zao)(zao)(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)頻率(lv)(lv)(lv),即(ji)鋸(ju)(ju)齒(chi)(chi)(chi)(chi)每秒打空氣質點的(de)(de)(de)次數(shu)(shu),(HZ)z—鋸(ju)(ju)片(pian)(pian)的(de)(de)(de)齒(chi)(chi)(chi)(chi)數(shu)(shu)(個(ge)(ge))n—鋸(ju)(ju)片(pian)(pian)的(de)(de)(de)軸(zhou)的(de)(de)(de)轉(zhuan)(zhuan)速(su)(r/min)i—諧波序(xu)號i=1、2、3……鋸(ju)(ju)片(pian)(pian)旋(xuan)轉(zhuan)(zhuan)時,每個(ge)(ge)齒(chi)(chi)(chi)(chi)尖(jian)(jian)產生(sheng)(sheng)單極輻射(she)流,并(bing)周期地(di)通過工(gong)作(zuo)(zuo)臺的(de)(de)(de)鋸(ju)(ju)縫向外排出,由(you)于氣流壓(ya)力發生(sheng)(sheng)激烈變化,隨之產生(sheng)(sheng)排氣噪(zao)(zao)(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng),排氣噪(zao)(zao)(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)升功率(lv)(lv)(lv)也隨著鋸(ju)(ju)片(pian)(pian)線(xian)速(su)度(du)增大而急劇(ju)增加,它與氣流速(su)度(du)的(de)(de)(de)6次方(fang)成正(zheng)(zheng)比,在(zai)線(xian)速(su)度(du)較小時,與其(qi)5次方(fang)成正(zheng)(zheng)比,則(ze)排氣噪(zao)(zao)(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)頻率(lv)(lv)(lv)為:式中(zhong):fi—排氣噪(zao)(zao)(zao)(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)頻率(lv)(lv)(lv),(HZ)z—鋸(ju)(ju)片(pian)(pian)的(de)(de)(de)齒(chi)(chi)(chi)(chi)數(shu)(shu)(個(ge)(ge))n—鋸(ju)(ju)片(pian)(pian)軸(zhou)的(de)(de)(de)轉(zhuan)(zhuan)速(su)(r/min)i—諧波序(xu)號i=1、2、3……在(zai)鋸(ju)(ju)片(pian)(pian)高速(su)旋(xuan)轉(zhuan)(zhuan)時,每當渦流分(fen)離的(de)(de)(de)頻率(lv)(lv)(lv)與鋸(ju)(ju)片(pian)(pian)的(de)(de)(de)固有(you)頻率(lv)(lv)(lv)相近時,就發生(sheng)(sheng)共振,便發出“尖(jian)(jian)叫聲(sheng)(sheng)(sheng)(sheng)”,其(qi)頻率(lv)(lv)(lv)為:f=z fr式中(zhong):z—鋸(ju)(ju)片(pian)(pian)的(de)(de)(de)齒(chi)(chi)(chi)(chi)數(shu)(shu)(個(ge)(ge))fr—軸(zhou)回轉(zhuan)(zhuan)頻率(lv)(lv)(lv)(HZ)鋸(ju)(ju)片(pian)(pian)屬于薄(bo)壁件(jian),其(qi)剛性一般較差,在(zai)外力的(de)(de)(de)作(zuo)(zuo)用下很容易產生(sheng)(sheng)振動,由(you)于振動便容易產生(sheng)(sheng)物料的(de)(de)(de)摩(mo)擦(ca),因(yin)此該(gai)類(lei)的(de)(de)(de)噪(zao)(zao)(zao)(zao)(zao)(zao)音(yin)也就隨之產生(sheng)(sheng)。
一(yi)(yi)同石材中的(de)(de)(de)(de)礦產的(de)(de)(de)(de)硬度(du)程度(du)是不一(yi)(yi)樣的(de)(de)(de)(de),所以(yi)(yi)加(jia)(jia)(jia)工(gong)(gong)(gong)起來(lai)就具(ju)有必定的(de)(de)(de)(de)磨難,這就歲石材加(jia)(jia)(jia)工(gong)(gong)(gong)的(de)(de)(de)(de)東西(xi)提(ti)出了更(geng)(geng)高(gao)的(de)(de)(de)(de)需(xu)要(yao)(yao)(yao)(yao),通常來(lai)說,對(dui)于石材中顆(ke)粒分(fen)布較(jiao)均勻的(de)(de)(de)(de)加(jia)(jia)(jia)工(gong)(gong)(gong)起來(lai)比(bi)照簡略(lve)(lve),因(yin)為全體性(xing)質都(dou)比(bi)照附(fu)近(jin),在加(jia)(jia)(jia)工(gong)(gong)(gong)的(de)(de)(de)(de)時(shi)分(fen)顆(ke)粒比(bi)照細(xi)的(de)(de)(de)(de)比(bi)起那些(xie)(xie)片狀的(de)(de)(de)(de)來(lai)說加(jia)(jia)(jia)工(gong)(gong)(gong)也簡略(lve)(lve)一(yi)(yi)些(xie)(xie),材料很之謎(mi)的(de)(de)(de)(de)比(bi)懈怠的(de)(de)(de)(de)加(jia)(jia)(jia)工(gong)(gong)(gong)也簡略(lve)(lve),所以(yi)(yi)在選(xuan)擇濟公東西(xi)和對(dui)加(jia)(jia)(jia)工(gong)(gong)(gong)東西(xi)參數的(de)(de)(de)(de)選(xuan)擇上就顯得尤為重(zhong)要(yao)(yao)(yao)(yao)。現(xian)在通常的(de)(de)(de)(de)重(zhong)慶石材加(jia)(jia)(jia)工(gong)(gong)(gong)東西(xi)普(pu)片都(dou)選(xuan)用的(de)(de)(de)(de)是金剛石材料的(de)(de)(de)(de)刀具(ju),石材加(jia)(jia)(jia)工(gong)(gong)(gong)領域的(de)(de)(de)(de)活絡翻(fan)開(kai),對(dui)于金剛石刀具(ju)也就提(ti)出了很高(gao)的(de)(de)(de)(de)需(xu)要(yao)(yao)(yao)(yao),不只需(xu)要(yao)(yao)(yao)(yao)者這些(xie)(xie)刀具(ju)在石材的(de)(de)(de)(de)切(qie)開(kai)進程中要(yao)(yao)(yao)(yao)切(qie)開(kai)活絡,運用壽數也要(yao)(yao)(yao)(yao)很長,一(yi)(yi)同還需(xu)要(yao)(yao)(yao)(yao)可以(yi)(yi)對(dui)林林總總的(de)(de)(de)(de)石材進行切(qie)開(kai),對(dui)與(yu)切(qie)開(kai)質量需(xu)要(yao)(yao)(yao)(yao)也要(yao)(yao)(yao)(yao)更(geng)(geng)高(gao),因(yin)為金剛石具(ju)有金屬的(de)(de)(de)(de)一(yi)(yi)些(xie)(xie)特性(xing),所以(yi)(yi)可以(yi)(yi)極(ji)好的(de)(de)(de)(de)跋涉切(qie)開(kai)功率和一(yi)(yi)斤(jin)運用壽數和跋涉工(gong)(gong)(gong)作率。
燒(shao)(shao)毛(mao)加(jia)工(gong)(gong)燒(shao)(shao)毛(mao)加(jia)工(gong)(gong)又(you)稱火(huo)燒(shao)(shao)加(jia)工(gong)(gong)、噴(pen)燒(shao)(shao)加(jia)工(gong)(gong),是利用(yong)組成(cheng)花(hua)崗(gang)石(shi)的(de)(de)不同礦(kuang)物(wu)顆粒熱(re)(re)脹系數的(de)(de)差異(yi),用(yong)火(huo)焰噴(pen)燒(shao)(shao)使(shi)其(qi)表面(mian)(mian)部分顆粒熱(re)(re)脹破(po)裂(lie)脫落,形成(cheng)起伏有(you)(you)序(xu)的(de)(de)粗面(mian)(mian)紋(wen)飾(shi)(shi)。這種粗面(mian)(mian)花(hua)崗(gang)石(shi)板(ban)材(cai),非(fei)常的(de)(de)適合(he)于濕滑場所(suo)(suo)的(de)(de)地(di)面(mian)(mian)裝飾(shi)(shi)和戶外的(de)(de)墻面(mian)(mian)裝飾(shi)(shi)。主要(yao)設(she)備是花(hua)崗(gang)石(shi)自(zi)動燒(shao)(shao)毛(mao)機(ji)(ji)。6、輔助(zhu)加(jia)工(gong)(gong)輔助(zhu)加(jia)工(gong)(gong)是將(jiang)已切齊、磨(mo)光(guang)(guang)的(de)(de)石(shi)材(cai)按(an)需要(yao)磨(mo)邊(bian)(bian)(bian)、倒角(jiao)、開(kai)孔洞、鉆眼、銑槽(cao)、銑邊(bian)(bian)(bian)等(deng)(deng)。主要(yao)的(de)(de)加(jia)工(gong)(gong)設(she)備有(you)(you)自(zi)動磨(mo)邊(bian)(bian)(bian)倒角(jiao)機(ji)(ji)、仿形銑機(ji)(ji)、薄壁(bi)鉆孔機(ji)(ji)、手持金剛(gang)石(shi)圓鋸、手持磨(mo)光(guang)(guang)拋光(guang)(guang)機(ji)(ji)等(deng)(deng)。7、檢(jian)驗修(xiu)補天然(ran)花(hua)崗(gang)石(shi)難免有(you)(you)裂(lie)縫、孔洞等(deng)(deng)瑕疵,而且在(zai)(zai)加(jia)工(gong)(gong)過(guo)程也難免會有(you)(you)一些(xie)磕碰(peng),出(chu)現(xian)一些(xie)小缺陷。所(suo)(suo)以在(zai)(zai)加(jia)工(gong)(gong)完成(cheng)后(hou)所(suo)(suo)有(you)(you)的(de)(de)花(hua)崗(gang)巖板(ban)材(cai)都需要(yao)檢(jian)驗,首先要(yao)通過(guo)清(qing)洗,重慶石(shi)材(cai)加(jia)工(gong)(gong)然(ran)后(hou)是吹干檢(jian)驗,合(he)格品包裝入庫(ku),而不合(he)格產(chan)品則應先挑出(chu)來。
不只可(ke)(ke)以降低(di)石(shi)材(cai)裝修本錢,重(zhong)慶(qing)石(shi)材(cai)加(jia)工(gong)廠而且可(ke)(ke)以節約和(he)有(you)用運用有(you)限的(de)(de)(de)(de)貴(gui)重(zhong)石(shi)材(cai)本錢。除可(ke)(ke)直接粘(zhan)貼外,還可(ke)(ke)以制成蜂窩板(ban)(ban)、復合板(ban)(ban)等(deng);而且經國(guo)(guo)外建筑物運用超(chao)薄(bo)板(ban)(ban)證(zheng)明(ming),超(chao)薄(bo)型天然(ran)石(shi)材(cai)能較(jiao)好(hao)(hao)的(de)(de)(de)(de)飽嘗地(di)震、熱脹冷縮(suo)等(deng)各類(lei)惡劣環境的(de)(de)(de)(de)檢查。啥樣的(de)(de)(de)(de)石(shi)板(ban)(ban)瓦才是好(hao)(hao)的(de)(de)(de)(de)石(shi)板(ban)(ban)瓦重(zhong)慶(qing)石(shi)材(cai)加(jia)工(gong)廠告(gao)訴你啥樣的(de)(de)(de)(de)石(shi)板(ban)(ban)瓦才是好(hao)(hao)的(de)(de)(de)(de)石(shi)板(ban)(ban)瓦高硅,低(di)鈣(gai)、鐵、鎂、鋁、黑度(du)深(shen)、色(se)差小、可(ke)(ke)劈分性高、表面平整(zheng)度(du)好(hao)(hao),二氧化(hua)硅的(de)(de)(de)(de)凹凸會觸及板(ban)(ban)質的(de)(de)(de)(de)硬度(du)和(he)吸水率,我國(guo)(guo)(R1)、德國(guo)(guo)、美國(guo)(guo)(S1)的(de)(de)(de)(de)板(ban)(ban)石(shi)規(gui)范(fan)(fan)來(lai)說,低(di)硅的(de)(de)(de)(de)板(ban)(ban)材(cai)因其抗壓強度(du)和(he)吸水率的(de)(de)(de)(de)缺少不能用來(lai)做屋面瓦板(ban)(ban),高鈣(gai)的(de)(de)(de)(de)板(ban)(ban)材(cai)易(yi)褪色(se)、風化(hua),高金(jin)屬元素的(de)(de)(de)(de)易(yi)于空氣中的(de)(de)(de)(de)硫(liu)元素反應致使(shi)老化(hua)開裂(lie),具體請參看國(guo)(guo)度(du)板(ban)(ban)石(shi)查驗規(gui)范(fan)(fan)GB 18600,我國(guo)(guo)國(guo)(guo)度(du)天然(ran)板(ban)(ban)石(shi)僅(jin)有(you)的(de)(de)(de)(de)查驗規(gui)范(fan)(fan)。
襄陽建筑爵士白大理石服務商長期以(yi)(yi)來(lai),國內外專家學者對(dui)(dui)金剛(gang)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)工具鋸(ju)(ju)切(qie)花崗巖(yan)的(de)加(jia)(jia)工機(ji)理(li)(li)、金剛(gang)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)工具的(de)磨損機(ji)理(li)(li),以(yi)(yi)及(ji)鋸(ju)(ju)切(qie)加(jia)(jia)工過(guo)程中(zhong)(zhong)的(de)鋸(ju)(ju)切(qie)力做了(le)大(da)(da)量試(shi)驗和研(yan)(yan)究(jiu)(jiu),取(qu)得了(le)令人矚目的(de)成果(guo),重(zhong)慶石(shi)(shi)(shi)(shi)(shi)(shi)(shi)材(cai)(cai)加(jia)(jia)工對(dui)(dui)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)材(cai)(cai)鋸(ju)(ju)切(qie)加(jia)(jia)工及(ji)金剛(gang)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)工具的(de)研(yan)(yan)究(jiu)(jiu)開發起到了(le)積極的(de)推動(dong)(dong)作用(yong)(yong)。裝修(xiu)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)材(cai)(cai)的(de)運用(yong)(yong)你(ni)可知怎樣(yang)選擇一般咱(zan)(zan)們(men)的(de)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)材(cai)(cai)多用(yong)(yong)于修(xiu)建,機(ji)械方面(mian)(mian),重(zhong)慶石(shi)(shi)(shi)(shi)(shi)(shi)(shi)材(cai)(cai)加(jia)(jia)工廠告訴咱(zan)(zan)們(men)多選用(yong)(yong)哪些石(shi)(shi)(shi)(shi)(shi)(shi)(shi)材(cai)(cai)!1、大(da)(da)理(li)(li)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)大(da)(da)理(li)(li)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)是(shi)地殼華(hua)夏(xia)有的(de)巖(yan)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)經過(guo)地殼內高溫(wen)高壓作用(yong)(yong)構(gou)成的(de)變(bian)質(zhi)(zhi)(zhi)(zhi)巖(yan)。地殼的(de)內力作用(yong)(yong)促進正本的(de)各類巖(yan)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)發作質(zhi)(zhi)(zhi)(zhi)的(de)改動(dong)(dong),即(ji)正本巖(yan)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)的(de)構(gou)造、構(gou)造和礦藏成分發作改動(dong)(dong)。經過(guo)突變(bian)構(gou)成的(de)新的(de)巖(yan)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)稱為(wei)變(bian)質(zhi)(zhi)(zhi)(zhi)巖(yan)。由于石(shi)(shi)(shi)(shi)(shi)(shi)(shi)材(cai)(cai)異形加(jia)(jia)工機(ji)械大(da)(da)理(li)(li)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)一般都富含雜質(zhi)(zhi)(zhi)(zhi),并且碳(tan)酸(suan)鈣(gai)在(zai)大(da)(da)氣中(zhong)(zhong)受二氧化碳(tan)、碳(tan)化物、水氣的(de)作用(yong)(yong),也(ye)簡略風化和溶(rong)蝕,而(er)使(shi)表面(mian)(mian)很快失去光澤。大(da)(da)理(li)(li)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)一般性(xing)質(zhi)(zhi)(zhi)(zhi)比照軟(ruan),這是(shi)相對(dui)(dui)于花崗石(shi)(shi)(shi)(shi)(shi)(shi)(shi)而(er)言的(de)。