由于(yu)大(da)理(li)石(shi)(shi)系(xi)非金屬(shu)材(cai)料，沒有磁性反(fan)應，亦無塑性變(bian)形(xing)。其(qi)(qi)硬度比鑄鐵高2－3倍(相當于(yu)HRC>51)，因此精(jing)(jing)度保持性好。在使用中巖石(shi)(shi)工具(ju)即使遭(zao)重物磕碰，至多掉幾粒石(shi)(shi)碴而(er)(er)(er)(er)已，而(er)(er)(er)(er)不(bu)會(hui)像金屬(shu)工具(ju)那樣，因變(bian)形(xing)而(er)(er)(er)(er)破壞精(jing)(jing)度。其(qi)(qi)優(you)(you)于(yu)優(you)(you)良鑄鐵和鋼材(cai)制(zhi)作的(de)測量基準零件，可以獲(huo)得高而(er)(er)(er)(er)穩定的(de)精(jing)(jing)度。大(da)理(li)石(shi)(shi)平臺采用優(you)(you)良的(de)   大(da)理(li)石(shi)(shi)料經機械(xie)加工，手(shou)工精(jing)(jing)研而(er)(er)(er)(er)成。黑色(se)光(guang)澤，結構質地均勻，穩定性好。強度大(da)、。并具(ju)有：不(bu)生(sheng)銹(xiu)、不(bu)磁化(hua)、不(bu)變(bian)型(xing)、性好等優(you)(you)點(dian)。能在重負荷及一(yi)般溫度下(xia)保持穩定。

花(hua)(hua)崗(gang)石(shi)(shi)構件(jian)(jian)適用于(yu)機械工廠的測量(liang)工具。花(hua)(hua)崗(gang)石(shi)(shi)平(ping)臺物理特性(xing)：比(bi)重：2970～3070kg/㎡抗(kang)壓強(qiang)度：245～254N/m㎡強(qiang)性(xing)磨量(liang)：1.27～1.47N/m㎡線膨脹系數：4.6×10～6℃吸水率：0.13%肖氏強(qiang)度：HS70以上。花(hua)(hua)崗(gang)石(shi)(shi)平(ping)臺的支撐(cheng)：購(gou)買花(hua)(hua)崗(gang)石(shi)(shi)平(ping)臺時我們還要(yao)購(gou)買一(yi)些(xie)花(hua)(hua)崗(gang)石(shi)(shi)平(ping)臺的附件(jian)(jian)，比(bi)如支撐(cheng)花(hua)(hua)崗(gang)石(shi)(shi)平(ping)板的支架或(huo)千斤頂，是調平(ping)花(hua)(hua)崗(gang)石(shi)(shi)平(ping)板使用的附件(jian)(jian)。

花(hua)(hua)崗(gang)石(shi)(shi)(shi)(shi)構件的(de)(de)(de)(de)生產(chan)制作(zuo)(zuo)(zuo)過程(cheng)中可(ke)能會(hui)出現(xian)一些產(chan)品的(de)(de)(de)(de)缺(que)陷，只要(yao)采用正確的(de)(de)(de)(de)工(gong)(gong)(gong)藝方法(fa)可(ke)以進行彌補(bu)維修(xiu)。以下是(shi)花(hua)(hua)崗(gang)巖(yan)平(ping)(ping)(ping)(ping)(ping)(ping)板(ban)(ban)(ban)成產(chan)中的(de)(de)(de)(de)技(ji)術注意(yi)事(shi)項：⒈花(hua)(hua)崗(gang)石(shi)(shi)(shi)(shi)平(ping)(ping)(ping)(ping)(ping)(ping)板(ban)(ban)(ban)平(ping)(ping)(ping)(ping)(ping)(ping)臺工(gong)(gong)(gong)作(zuo)(zuo)(zuo)面(mian)(mian)(mian)(mian)(mian)(mian)上(shang)不(bu)得(de)有(you)嚴重影響外觀和使用性能的(de)(de)(de)(de)砂孔(kong)(kong)、縮松、劃痕、碰、氣孔(kong)(kong)、裂紋(wen)、夾渣銹跡等缺(que)陷。⒉花(hua)(hua)崗(gang)石(shi)(shi)(shi)(shi)平(ping)(ping)(ping)(ping)(ping)(ping)板(ban)(ban)(ban)平(ping)(ping)(ping)(ping)(ping)(ping)臺非工(gong)(gong)(gong)作(zuo)(zuo)(zuo)面(mian)(mian)(mian)(mian)(mian)(mian)上(shang)的(de)(de)(de)(de)凹陷或(huo)掉角允許修(xiu)補(bu)。⒊花(hua)(hua)崗(gang)石(shi)(shi)(shi)(shi)平(ping)(ping)(ping)(ping)(ping)(ping)板(ban)(ban)(ban)平(ping)(ping)(ping)(ping)(ping)(ping)臺側(ce)面(mian)(mian)(mian)(mian)(mian)(mian)對工(gong)(gong)(gong)作(zuo)(zuo)(zuo)面(mian)(mian)(mian)(mian)(mian)(mian)的(de)(de)(de)(de)垂(chui)直度公(gong)差和平(ping)(ping)(ping)(ping)(ping)(ping)板(ban)(ban)(ban)兩相鄰側(ce)面(mian)(mian)(mian)(mian)(mian)(mian)的(de)(de)(de)(de)垂(chui)直度公(gong)差均(jun)按GB/T1184中規定的(de)(de)(de)(de)12級(ji)(ji)。⒋花(hua)(hua)崗(gang)石(shi)(shi)(shi)(shi)平(ping)(ping)(ping)(ping)(ping)(ping)板(ban)(ban)(ban)平(ping)(ping)(ping)(ping)(ping)(ping)臺工(gong)(gong)(gong)作(zuo)(zuo)(zuo)面(mian)(mian)(mian)(mian)(mian)(mian)的(de)(de)(de)(de)集中載荷區域、施加的(de)(de)(de)(de)額(e)定載荷和允許撓(nao)度值(zhi)見表(biao)3的(de)(de)(de)(de)規定。⒌000級(ji)(ji)和00級(ji)(ji)平(ping)(ping)(ping)(ping)(ping)(ping)板(ban)(ban)(ban)建議不(bu)設(she)置搬運手柄。⒍若(ruo)0級(ji)(ji)和1級(ji)(ji)平(ping)(ping)(ping)(ping)(ping)(ping)板(ban)(ban)(ban)面(mian)(mian)(mian)(mian)(mian)(mian)上(shang)設(she)置螺紋(wen)孔(kong)(kong)(或(huo)溝槽(cao))，其部位(wei)應(ying)(ying)(ying)不(bu)高于工(gong)(gong)(gong)作(zuo)(zuo)(zuo)面(mian)(mian)(mian)(mian)(mian)(mian)。⒎花(hua)(hua)崗(gang)石(shi)(shi)(shi)(shi)平(ping)(ping)(ping)(ping)(ping)(ping)板(ban)(ban)(ban)平(ping)(ping)(ping)(ping)(ping)(ping)臺應(ying)(ying)(ying)采用細晶粒、結構致密的(de)(de)(de)(de)輝(hui)長(chang)巖(yan)、輝(hui)綠巖(yan)、花(hua)(hua)崗(gang)石(shi)(shi)(shi)(shi)(黑云母應(ying)(ying)(ying)小于5%、彈性模量應(ying)(ying)(ying)大于0.6×10—4kg/cm2、吸(xi)水率應(ying)(ying)(ying)小于0.25%)等材料制造，其工(gong)(gong)(gong)作(zuo)(zuo)(zuo)面(mian)(mian)(mian)(mian)(mian)(mian)硬度應(ying)(ying)(ying)大于70HS。⒏花(hua)(hua)崗(gang)石(shi)(shi)(shi)(shi)平(ping)(ping)(ping)(ping)(ping)(ping)板(ban)(ban)(ban)平(ping)(ping)(ping)(ping)(ping)(ping)臺工(gong)(gong)(gong)作(zuo)(zuo)(zuo)面(mian)(mian)(mian)(mian)(mian)(mian)的(de)(de)(de)(de)表(biao)面(mian)(mian)(mian)(mian)(mian)(mian)粗糙(cao)度Ra的(de)(de)(de)(de)允許值(zhi)為0.32~0.63um，側(ce)面(mian)(mian)(mian)(mian)(mian)(mian)為10um。⒐花(hua)(hua)崗(gang)石(shi)(shi)(shi)(shi)平(ping)(ping)(ping)(ping)(ping)(ping)板(ban)(ban)(ban)平(ping)(ping)(ping)(ping)(ping)(ping)臺工(gong)(gong)(gong)作(zuo)(zuo)(zuo)面(mian)(mian)(mian)(mian)(mian)(mian)的(de)(de)(de)(de)平(ping)(ping)(ping)(ping)(ping)(ping)面(mian)(mian)(mian)(mian)(mian)(mian)度公(gong)差。⒑對采用對角線(xian)法(fa)或(huo)網格法(fa)檢(jian)驗(yan)平(ping)(ping)(ping)(ping)(ping)(ping)板(ban)(ban)(ban)工(gong)(gong)(gong)作(zuo)(zuo)(zuo)面(mian)(mian)(mian)(mian)(mian)(mian)平(ping)(ping)(ping)(ping)(ping)(ping)面(mian)(mian)(mian)(mian)(mian)(mian)度時，應(ying)(ying)(ying)檢(jian)驗(yan)氣平(ping)(ping)(ping)(ping)(ping)(ping)面(mian)(mian)(mian)(mian)(mian)(mian)波動(dong)量，工(gong)(gong)(gong)作(zuo)(zuo)(zuo)面(mian)(mian)(mian)(mian)(mian)(mian)的(de)(de)(de)(de)平(ping)(ping)(ping)(ping)(ping)(ping)面(mian)(mian)(mian)(mian)(mian)(mian)波動(dong)量。