
青(qing)(qing)(qing)石(shi)(shi)板(ban)(ban)(ban)(ban)(ban)(ban)材(cai)(cai)(cai)(cai)用(yong)(yong)(yong)(yong)途青(qing)(qing)(qing)石(shi)(shi)板(ban)(ban)(ban)(ban)(ban)(ban)材(cai)(cai)(cai)(cai),顧名(ming)思(si)義(yi)就是使(shi)用(yong)(yong)(yong)(yong)天然的(de)(de)(de)(de)天青(qing)(qing)(qing)石(shi)(shi)制作而(er)成(cheng)的(de)(de)(de)(de),使(shi)用(yong)(yong)(yong)(yong)它制作的(de)(de)(de)(de)板(ban)(ban)(ban)(ban)(ban)(ban)材(cai)(cai)(cai)(cai),重(zhong)(zhong)慶青(qing)(qing)(qing)石(shi)(shi)板(ban)(ban)(ban)(ban)(ban)(ban)材(cai)(cai)(cai)(cai)具(ju)(ju)有(you)(you)無(wu)毒無(wu)味、無(wu)反射的(de)(de)(de)(de)特點,我(wo)們常常將它使(shi)用(yong)(yong)(yong)(yong)到各(ge)種大(da)型的(de)(de)(de)(de)室外廣場(chang)建筑的(de)(de)(de)(de)裝(zhuang)修當中,這種青(qing)(qing)(qing)石(shi)(shi)板(ban)(ban)(ban)(ban)(ban)(ban)究(jiu)竟(jing)有(you)(you)什么用(yong)(yong)(yong)(yong)途,可以(yi)備受青(qing)(qing)(qing)睞(lai)呢?青(qing)(qing)(qing)石(shi)(shi)板(ban)(ban)(ban)(ban)(ban)(ban)材(cai)(cai)(cai)(cai),它是一(yi)(yi)種非礦物(wu)(wu)質的(de)(de)(de)(de)產(chan)品,俗稱“綠(lv)石(shi)(shi)板(ban)(ban)(ban)(ban)(ban)(ban)”,青(qing)(qing)(qing)石(shi)(shi)板(ban)(ban)(ban)(ban)(ban)(ban)主要(yao)是由(you)石(shi)(shi)灰(hui)石(shi)(shi)、白(bai)云石(shi)(shi)組成(cheng)的(de)(de)(de)(de),屬于沉(chen)積(ji)巖(yan)(yan)這一(yi)(yi)種類,重(zhong)(zhong)慶青(qing)(qing)(qing)石(shi)(shi)板(ban)(ban)(ban)(ban)(ban)(ban)材(cai)(cai)(cai)(cai)它是隨著巖(yan)(yan)石(shi)(shi)埋(mai)藏的(de)(de)(de)(de)深度條件(jian)的(de)(de)(de)(de)不同以(yi)及銅、鐵、等(deng)(deng)等(deng)(deng)金屬氧化物(wu)(wu)的(de)(de)(de)(de)混淆(xiao)之后,經過(guo)(guo)長時期的(de)(de)(de)(de)地(di)質作用(yong)(yong)(yong)(yong),形成(cheng)了多種顏(yan)色的(de)(de)(de)(de)青(qing)(qing)(qing)石(shi)(shi)板(ban)(ban)(ban)(ban)(ban)(ban)。青(qing)(qing)(qing)石(shi)(shi)板(ban)(ban)(ban)(ban)(ban)(ban)材(cai)(cai)(cai)(cai)具(ju)(ju)有(you)(you)硬(ying)度高,重(zhong)(zhong)慶青(qing)(qing)(qing)石(shi)(shi)板(ban)(ban)(ban)(ban)(ban)(ban)材(cai)(cai)(cai)(cai)抗(kang)壓(ya)能力強,質地(di)密實,重(zhong)(zhong)慶青(qing)(qing)(qing)石(shi)(shi)板(ban)(ban)(ban)(ban)(ban)(ban)材(cai)(cai)(cai)(cai)由(you)于材(cai)(cai)(cai)(cai)質的(de)(de)(de)(de)天然性,看起來比(bi)較自然古(gu)樸,它的(de)(de)(de)(de)表(biao)面一(yi)(yi)般不會(hui)經過(guo)(guo)人工(gong)的(de)(de)(de)(de)打磨,當被劈制成(cheng)一(yi)(yi)些面積(ji)不大(da)的(de)(de)(de)(de)薄板(ban)(ban)(ban)(ban)(ban)(ban)后,仍然具(ju)(ju)有(you)(you)天然的(de)(de)(de)(de)效(xiao)果,用(yong)(yong)(yong)(yong)于室內的(de)(de)(de)(de)裝(zhuang)飾或者是一(yi)(yi)些局部墻面的(de)(de)(de)(de)裝(zhuang)飾,這樣會(hui)使(shi)得裝(zhuang)飾有(you)(you)返(fan)璞歸真的(de)(de)(de)(de)效(xiao)果。

隨州裝修星空灰大理石公司在(zai)兩(liang)個(ge)相(xiang)互垂直在(zai)內的(de)(de)(de)方向(xiang)鋪(pu)兩(liang)條(tiao)干砂道路,讓他的(de)(de)(de)寬(kuan)度要大于板(ban)(ban)(ban)寬(kuan)的(de)(de)(de)寬(kuan)度,厚(hou)度要大于3cm。結合施工(gong)大樣圖及景觀鋪(pu)裝(zhuang)(zhuang)分區實際尺(chi)寸,把鋪(pu)裝(zhuang)(zhuang)板(ban)(ban)(ban)塊排好,重慶(qing)青(qing)(qing)石(shi)板(ban)(ban)(ban)材(cai)以便檢查(cha)板(ban)(ban)(ban)塊之間(jian)的(de)(de)(de)縫隙,核(he)對板(ban)(ban)(ban)塊與墻(qiang)面、柱、洞口、樹池、側緣(yuan)石(shi)、平緣(yuan)石(shi)邊等(deng)部位(wei)的(de)(de)(de)相(xiang)對位(wei)置(zhi)。裝(zhuang)(zhuang)飾石(shi)材(cai)具備(bei)的(de)(de)(de)基本(ben)條(tiao)件(jian)(jian)具備(bei)裝(zhuang)(zhuang)飾石(shi)材(cai)必須符合3條(tiao)基本(ben)條(tiao)件(jian)(jian)。①有外在(zai)美學裝(zhuang)(zhuang)飾性。這是從視覺和人的(de)(de)(de)欣賞、歷史文化角(jiao)度認識的(de)(de)(de),重慶(qing)青(qing)(qing)石(shi)板(ban)(ban)(ban)材(cai)各(ge)個(ge)民族、地域(yu)、習(xi)慣、喜(xi)好不同(tong),使(shi)用的(de)(de)(de)裝(zhuang)(zhuang)飾石(shi)材(cai)色彩、種類也不同(tong),重慶(qing)青(qing)(qing)石(shi)板(ban)(ban)(ban)材(cai)但(dan)不管怎樣只要是作為裝(zhuang)(zhuang)飾裝(zhuang)(zhuang)修使(shi)用就必須要考慮石(shi)材(cai)的(de)(de)(de)外在(zai)美觀。這是設計、選(xuan)擇(ze)裝(zhuang)(zhuang)飾石(shi)材(cai)的(de)(de)(de)首要因素。

噪(zao)(zao)(zao)音所(suo)產生(sheng)(sheng)(sheng)的(de)(de)(de)(de)(de)(de)危害是比(bi)較大的(de)(de)(de)(de)(de)(de),尤(you)其(qi)是表現在如下(xia)幾個(ge)(ge)方(fang)面:1、長期(qi)在強烈的(de)(de)(de)(de)(de)(de)噪(zao)(zao)(zao)音環境中(zhong)工作(zuo),可以使人(ren)產生(sheng)(sheng)(sheng)噪(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)性耳聾(long)。2、影響人(ren)們的(de)(de)(de)(de)(de)(de)正(zheng)常(chang)工作(zuo)、學(xue)習及(ji)日常(chang)生(sheng)(sheng)(sheng)活。那么(me)石(shi)材加工過程中(zhong)噪(zao)(zao)(zao)音是怎樣產生(sheng)(sheng)(sheng)的(de)(de)(de)(de)(de)(de)呢?它主要來(lai)自齒(chi)(chi)(chi)(chi)尖(jian)(jian)(jian)噪(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng),鋸(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)(sheng)。齒(chi)(chi)(chi)(chi)尖(jian)(jian)(jian)噪(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng):是當鋸(ju)(ju)(ju)片(pian)(pian)(pian)(pian)高(gao)速(su)(su)(su)運(yun)轉(zhuan)(zhuan)時,鋸(ju)(ju)(ju)片(pian)(pian)(pian)(pian)的(de)(de)(de)(de)(de)(de)鋸(ju)(ju)(ju)齒(chi)(chi)(chi)(chi)與(yu)周圍的(de)(de)(de)(de)(de)(de)空氣相互(hu)作(zuo)用,引(yin)起空氣的(de)(de)(de)(de)(de)(de)壓力脈動(dong)而產生(sheng)(sheng)(sheng)的(de)(de)(de)(de)(de)(de)噪(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)。齒(chi)(chi)(chi)(chi)尖(jian)(jian)(jian)噪(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)(de)(de)(de)聲(sheng)(sheng)(sheng)(sheng)功率(lv)(lv)(lv)與(yu)鋸(ju)(ju)(ju)片(pian)(pian)(pian)(pian)的(de)(de)(de)(de)(de)(de)直徑、鋸(ju)(ju)(ju)片(pian)(pian)(pian)(pian)的(de)(de)(de)(de)(de)(de)線速(su)(su)(su)度(du)的(de)(de)(de)(de)(de)(de)三次方(fang)成(cheng)正(zheng)比(bi),當轉(zhuan)(zhuan)速(su)(su)(su)越低時,與(yu)其(qi)線速(su)(su)(su)度(du)三次方(fang)成(cheng)正(zheng)比(bi),齒(chi)(chi)(chi)(chi)尖(jian)(jian)(jian)噪(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)(de)(de)(de)頻(pin)(pin)率(lv)(lv)(lv)可由(you)(you)下(xia)式(shi)(shi)計算:式(shi)(shi)中(zhong):fi—齒(chi)(chi)(chi)(chi)尖(jian)(jian)(jian)噪(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)頻(pin)(pin)率(lv)(lv)(lv),即(ji)鋸(ju)(ju)(ju)齒(chi)(chi)(chi)(chi)每秒打空氣質點的(de)(de)(de)(de)(de)(de)次數(shu)(shu),(HZ)z—鋸(ju)(ju)(ju)片(pian)(pian)(pian)(pian)的(de)(de)(de)(de)(de)(de)齒(chi)(chi)(chi)(chi)數(shu)(shu)(個(ge)(ge))n—鋸(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)速(su)(su)(su)(r/min)i—諧(xie)波序號i=1、2、3……鋸(ju)(ju)(ju)片(pian)(pian)(pian)(pian)旋轉(zhuan)(zhuan)時,每個(ge)(ge)齒(chi)(chi)(chi)(chi)尖(jian)(jian)(jian)產生(sheng)(sheng)(sheng)單極輻(fu)射流,并周期(qi)地(di)通過工作(zuo)臺的(de)(de)(de)(de)(de)(de)鋸(ju)(ju)(ju)縫向外排(pai)出(chu),由(you)(you)于氣流壓力發(fa)生(sheng)(sheng)(sheng)激烈變化(hua),隨之產生(sheng)(sheng)(sheng)排(pai)氣噪(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng),排(pai)氣噪(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)的(de)(de)(de)(de)(de)(de)升功率(lv)(lv)(lv)也隨著鋸(ju)(ju)(ju)片(pian)(pian)(pian)(pian)線速(su)(su)(su)度(du)增大而急劇增加,它與(yu)氣流速(su)(su)(su)度(du)的(de)(de)(de)(de)(de)(de)6次方(fang)成(cheng)正(zheng)比(bi),在線速(su)(su)(su)度(du)較小時,與(yu)其(qi)5次方(fang)成(cheng)正(zheng)比(bi),則(ze)排(pai)氣噪(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)頻(pin)(pin)率(lv)(lv)(lv)為(wei):式(shi)(shi)中(zhong):fi—排(pai)氣噪(zao)(zao)(zao)聲(sheng)(sheng)(sheng)(sheng)頻(pin)(pin)率(lv)(lv)(lv),(HZ)z—鋸(ju)(ju)(ju)片(pian)(pian)(pian)(pian)的(de)(de)(de)(de)(de)(de)齒(chi)(chi)(chi)(chi)數(shu)(shu)(個(ge)(ge))n—鋸(ju)(ju)(ju)片(pian)(pian)(pian)(pian)軸的(de)(de)(de)(de)(de)(de)轉(zhuan)(zhuan)速(su)(su)(su)(r/min)i—諧(xie)波序號i=1、2、3……在鋸(ju)(ju)(ju)片(pian)(pian)(pian)(pian)高(gao)速(su)(su)(su)旋轉(zhuan)(zhuan)時,每當渦流分離的(de)(de)(de)(de)(de)(de)頻(pin)(pin)率(lv)(lv)(lv)與(yu)鋸(ju)(ju)(ju)片(pian)(pian)(pian)(pian)的(de)(de)(de)(de)(de)(de)固有(you)頻(pin)(pin)率(lv)(lv)(lv)相近時,就發(fa)生(sheng)(sheng)(sheng)共(gong)振(zhen)(zhen),便發(fa)出(chu)“尖(jian)(jian)(jian)叫(jiao)聲(sheng)(sheng)(sheng)(sheng)”,其(qi)頻(pin)(pin)率(lv)(lv)(lv)為(wei):f=z fr式(shi)(shi)中(zhong):z—鋸(ju)(ju)(ju)片(pian)(pian)(pian)(pian)的(de)(de)(de)(de)(de)(de)齒(chi)(chi)(chi)(chi)數(shu)(shu)(個(ge)(ge))fr—軸回轉(zhuan)(zhuan)頻(pin)(pin)率(lv)(lv)(lv)(HZ)鋸(ju)(ju)(ju)片(pian)(pian)(pian)(pian)屬于薄壁(bi)件,其(qi)剛(gang)性一般較差,在外力的(de)(de)(de)(de)(de)(de)作(zuo)用下(xia)很容易產生(sheng)(sheng)(sheng)振(zhen)(zhen)動(dong),由(you)(you)于振(zhen)(zhen)動(dong)便容易產生(sheng)(sheng)(sheng)物料的(de)(de)(de)(de)(de)(de)摩擦,因此該類(lei)的(de)(de)(de)(de)(de)(de)噪(zao)(zao)(zao)音也就隨之產生(sheng)(sheng)(sheng)。

因(yin)此,在飲食服務業(ye)方面(mian)(mian),可用來設(she)(she)計(ji)(ji)(ji)(ji)獨創性的(de)(de)(de)餐桌、陳列(lie)展臺(tai)及(ji)潔凈衛生的(de)(de)(de)廚房(fang)工作(zuo)(zuo)臺(tai),同(tong)理,當(dang)被用于(yu)(yu)有嚴(yan)格衛生標準的(de)(de)(de)醫(yi)療衛生單位時,使用者(zhe)根(gen)據(ju)人(ren)(ren)(ren)體線條(tiao),靈(ling)活設(she)(she)計(ji)(ji)(ji)(ji)、安裝在醫(yi)療室(shi)、化驗室(shi)、外(wai)科手(shou)術室(shi)。在家居裝飾(shi)方面(mian)(mian),人(ren)(ren)(ren)造(zao)石材優越(yue)于(yu)(yu)一(yi)般傳統建材所沒有的(de)(de)(de)耐(nai)酸(suan)、耐(nai)堿、耐(nai)冷熱、抗沖擊的(de)(de)(de)特點(dian),作(zuo)(zuo)為(wei)(wei)一(yi)種質(zhi)感(gan)(gan)佳、色彩(cai)多(duo)的(de)(de)(de)飾(shi)材,不(bu)僅能(neng)美化是內外(wai)裝飾(shi),滿足其設(she)(she)計(ji)(ji)(ji)(ji)上(shang)的(de)(de)(de)多(duo)樣(yang)(yang)化需求,更能(neng)為(wei)(wei)建筑師和設(she)(she)計(ji)(ji)(ji)(ji)師提供極為(wei)(wei)廣泛的(de)(de)(de)設(she)(she)計(ji)(ji)(ji)(ji)空(kong)間,以(yi)(yi)創造(zao)空(kong)間,表(biao)達自(zi)然(ran)感(gan)(gan)覺(jue)。人(ren)(ren)(ren)造(zao)石材可以(yi)(yi)根(gen)據(ju)不(bu)同(tong)的(de)(de)(de)要求配(pei)方做成(cheng)一(yi)種先(xian)進的(de)(de)(de)合(he)成(cheng)物,因(yin)其特殊(shu)的(de)(de)(de)組成(cheng)成(cheng)份,使它(ta)很難被磨(mo)損(sun),又由于(yu)(yu)顏色和圖案(an)深及(ji)材料表(biao)里,因(yin)此,可以(yi)(yi)對(dui)才質(zhi)中凹紋(wen)、缺口或刮痕甚(shen)至(zhi)比(bi)較嚴(yan)重的(de)(de)(de)磨(mo)損(sun),只要采取相應(ying)的(de)(de)(de)辦法進行翻新(xin)(xin),便可回復如初,向新(xin)(xin)的(de)(de)(de)一(yi)樣(yang)(yang)。許多(duo)家庭在居室(shi)的(de)(de)(de)廚房(fang)和衛生間的(de)(de)(de)裝修中都采用了人(ren)(ren)(ren)造(zao)石材作(zuo)(zuo)臺(tai)面(mian)(mian)。由于(yu)(yu)人(ren)(ren)(ren)造(zao)石材是模仿天(tian)然(ran)大(da)理石的(de)(de)(de)表(biao)面(mian)(mian)紋(wen)理加工而成(cheng)的(de)(de)(de),具有類(lei)似大(da)理石的(de)(de)(de)機理特點(dian),在硬度(du)、光澤(ze)及(ji)耐(nai)磨(mo)性上(shang)都比(bi)天(tian)然(ran)大(da)理石好,這種樹脂黏(nian)度(du)低,易于(yu)(yu)成(cheng)型、固化快(kuai),可在常溫下(xia)固化。

主要(yao)的加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)設(she)備(bei)是(shi)(shi)(shi):自(zi)動多頭連續研(yan)磨(mo)機(ji)(ji)(ji)(ji)(ji)(ji)、金剛石(shi)校平機(ji)(ji)(ji)(ji)(ji)(ji)、橋(qiao)式(shi)磨(mo)機(ji)(ji)(ji)(ji)(ji)(ji)、圓盤磨(mo)機(ji)(ji)(ji)(ji)(ji)(ji)、逆轉式(shi)粗磨(mo)機(ji)(ji)(ji)(ji)(ji)(ji)、手(shou)扶(fu)磨(mo)機(ji)(ji)(ji)(ji)(ji)(ji)。3、切斷(duan)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)切斷(duan)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)是(shi)(shi)(shi)用(yong)切機(ji)(ji)(ji)(ji)(ji)(ji)將(jiang)毛板(ban)或拋光(guang)板(ban)按(an)所(suo)需(xu)規(gui)格(ge)尺寸進行(xing)定形(xing)切割加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)。主要(yao)的加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)設(she)備(bei)是(shi)(shi)(shi)縱向多鋸片切機(ji)(ji)(ji)(ji)(ji)(ji)、橫向切機(ji)(ji)(ji)(ji)(ji)(ji)、橋(qiao)式(shi)切機(ji)(ji)(ji)(ji)(ji)(ji)、懸臂(bei)式(shi)切機(ji)(ji)(ji)(ji)(ji)(ji)、手(shou)搖切機(ji)(ji)(ji)(ji)(ji)(ji)等(deng)。4、鑿(zao)(zao)切加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)鑿(zao)(zao)切加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)是(shi)(shi)(shi)傳(chuan)統的加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)方(fang)法(fa),通(tong)過(guo)(guo)楔裂、鑿(zao)(zao)打、劈(pi)剁、整修、打磨(mo)等(deng)辦(ban)法(fa)將(jiang)毛胚加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)成(cheng)所(suo)需(xu)產品,其表面可以是(shi)(shi)(shi)菠蘿(luo)面、龍(long)眼面、荔枝面、自(zi)然面、蘑菇面、拉溝面等(deng)等(deng)。鑿(zao)(zao)切加(jia)(jia)(jia)(jia)(jia)主要(yao)是(shi)(shi)(shi)使用(yong)手(shou)工(gong)(gong)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong),像是(shi)(shi)(shi)錘(chui)、剁斧、鏨子、鑿(zao)(zao)子等(deng),不過(guo)(guo)有些加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)過(guo)(guo)程可以使用(yong)機(ji)(ji)(ji)(ji)(ji)(ji)器加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)完成(cheng),重慶石(shi)材加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)主要(yao)設(she)備(bei)是(shi)(shi)(shi)劈(pi)石(shi)機(ji)(ji)(ji)(ji)(ji)(ji)、刨石(shi)機(ji)(ji)(ji)(ji)(ji)(ji)、自(zi)動錘(chui)鑿(zao)(zao)機(ji)(ji)(ji)(ji)(ji)(ji)、自(zi)動噴砂機(ji)(ji)(ji)(ji)(ji)(ji)等(deng)。

辨識飾面(mian)石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai)質(zhi)量(liang)(liang)加工好的(de)(de)(de)成(cheng)品(pin)飾面(mian)石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai),其(qi)質(zhi)量(liang)(liang)好壞不可(ke)以(yi)從以(yi)下四方(fang)面(mian)來鑒別;⑴觀(guan),即肉眼觀(guan)察石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai)的(de)(de)(de)表(biao)面(mian)結構(gou)。一(yi)般(ban)說來,均勻(yun)(yun)的(de)(de)(de)細(xi)料結構(gou)的(de)(de)(de)石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai)具有細(xi)膩的(de)(de)(de)質(zhi)感,為石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai)之佳(jia)品(pin);粗粒及(ji)不等粒結構(gou)的(de)(de)(de)石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai)其(qi)外觀(guan)效果(guo)較差(cha),重慶(qing)石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai)欄桿機械力(li)學性(xing)能也不均勻(yun)(yun),質(zhi)量(liang)(liang)稍差(cha)。另外,天(tian)然石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai)由于地質(zhi)作用的(de)(de)(de)影響(xiang)常(chang)在(zai)其(qi)中產生(sheng)一(yi)些細(xi)脈、微裂隙,石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai)易(yi)沿這些部位發(fa)生(sheng)破(po)裂,應注意剔除。至于缺(que)棱少角(jiao)更是影響(xiang)美(mei)觀(guan),選擇(ze)時尤應注意。⑵量(liang)(liang),即量(liang)(liang)石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai)的(de)(de)(de)尺(chi)寸規格(ge),重慶(qing)石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai)欄桿以(yi)免影響(xiang)拼接(jie)(jie),或造成(cheng)拼接(jie)(jie)后(hou)的(de)(de)(de)圖案、花(hua)紋、線條變形,影響(xiang)裝飾效果(guo)。⑶聽,即聽石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai)的(de)(de)(de)敲(qiao)擊(ji)聲音(yin)。一(yi)般(ban)而(er)言,質(zhi)量(liang)(liang)好的(de)(de)(de),內(nei)部致密(mi)均勻(yun)(yun)且無顯微裂隙的(de)(de)(de)石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai),其(qi)敲(qiao)擊(ji)聲清脆悅耳(er);相反,若石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai)內(nei)部存在(zai)顯微裂隙或細(xi)脈或因(yin)風化導致顆粒間接(jie)(jie)觸變松(song),則敲(qiao)擊(ji)聲粗啞。⑷試(shi),即用簡(jian)單(dan)的(de)(de)(de)試(shi)驗(yan)方(fang)法來檢驗(yan)石(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai)質(zhi)量(liang)(liang)好壞。