洛(luo)氏(shi)(shi)硬(ying)(ying)(ying)度(du)(du)(du)计(ji)的(de)(de)(de)(de)稳(wen)定(ding)性(xing)(xing)检(jian)测(ce)：由于(yu)(yu)硬(ying)(ying)(ying)度(du)(du)(du)计(ji)法(fa)定(ding)计(ji)量(liang)(liang)(liang)的(de)(de)(de)(de)周期一般是一年，未发(fa)生重(zhong)(zhong)大异(yi)常时(shi)(shi)，实(shi)验(yan)(yan)室(shi)一般不(bu)会重(zhong)(zhong)新计(ji)量(liang)(liang)(liang)，因此实(shi)验(yan)(yan)室(shi)用(yong)(yong)硬(ying)(ying)(ying)度(du)(du)(du)计(ji)的(de)(de)(de)(de)稳(wen)定(ding)性(xing)(xing)直(zhi)接(jie)影(ying)响(xiang)着日常检(jian)测(ce)结果的(de)(de)(de)(de)正确(que)性(xing)(xing)。洛(luo)氏(shi)(shi)硬(ying)(ying)(ying)度(du)(du)(du)计(ji)在实(shi)验(yan)(yan)室(shi)内部开展硬(ying)(ying)(ying)度(du)(du)(du)计(ji)在一定(ding)时(shi)(shi)间(jian)内的(de)(de)(de)(de)稳(wen)定(ding)性(xing)(xing)研(yan)究具有重(zhong)(zhong)要的(de)(de)(de)(de)意(yi)义，对(dui)于(yu)(yu)提高实(shi)验(yan)(yan)室(shi)的(de)(de)(de)(de)管理水平和(he)工作质量(liang)(liang)(liang)十(shi)分重(zhong)(zhong)要，尤其对(dui)于(yu)(yu)实(shi)验(yan)(yan)室(shi)的(de)(de)(de)(de)检(jian)测(ce)人员(yuan)养成良(liang)好的(de)(de)(de)(de)质量(liang)(liang)(liang)观念和(he)质量(liang)(liang)(liang)意(yi)识、实(shi)验(yan)(yan)室(shi)提高市场(chang)出(chu)名度(du)(du)(du)和(he)开拓检(jian)测(ce)市场(chang)十(shi)分重(zhong)(zhong)要。稳(wen)定(ding)性(xing)(xing)是指测(ce)量(liang)(liang)(liang)仪器保持其计(ji)量(liang)(liang)(liang)特性(xing)(xing)随(sui)时(shi)(shi)间(jian)恒定(ding)的(de)(de)(de)(de)能(neng)力，洛(luo)氏(shi)(shi)硬(ying)(ying)(ying)度(du)(du)(du)计(ji)可(ke)以(yi)进(jin)行定(ding)量(liang)(liang)(liang)的(de)(de)(de)(de)表征，主要是确(que)定(ding)计(ji)量(liang)(liang)(liang)特性(xing)(xing)随(sui)时(shi)(shi)间(jian)变化的(de)(de)(de)(de)关系。洛(luo)氏(shi)(shi)硬(ying)(ying)(ying)度(du)(du)(du)计(ji)应用(yong)(yong)与试样硬(ying)(ying)(ying)度(du)(du)(du)值(zhi)接(jie)近的(de)(de)(de)(de)标准硬(ying)(ying)(ying)度(du)(du)(du)块校机(ji)，使(shi)得试验(yan)(yan)结果更(geng)为可(ke)靠。柳州(zhou)高阶洛(luo)氏(shi)(shi)硬(ying)(ying)(ying)度(du)(du)(du)计(ji)测(ce)试标准

洛(luo)氏(shi)硬(ying)度(du)(du)计(ji)的(de)(de)(de)维护：1.检查工(gong)作(zuo)台正面(mian)(mian)和侧面(mian)(mian)及卡具，保(bao)证没有损坏或(huo)外来(lai)(lai)物。电器(qi)装(zhuang)置应(ying)(ying)(ying)有良好的(de)(de)(de)接地线，以(yi)防漏电伤人。2.硬(ying)度(du)(du)计(ji)使用前，应(ying)(ying)(ying)按试(shi)验要(yao)求选择相应(ying)(ying)(ying)的(de)(de)(de)压(ya)(ya)(ya)头，将压(ya)(ya)(ya)头用无(wu)酸汽(qi)油(you)清洗(xi)后，装(zhuang)入主轴(zhou)衬(chen)套内固(gu)(gu)定(ding)。固(gu)(gu)定(ding)时(shi)应(ying)(ying)(ying)保(bao)持压(ya)(ya)(ya)头与(yu)主轴(zhou)同心。3.所有工(gong)作(zuo)平(ping)台的(de)(de)(de)基面(mian)(mian)和支撑(cheng)面(mian)(mian)应(ying)(ying)(ying)清洁光滑，且不应(ying)(ying)(ying)有麻坑、洛(luo)氏(shi)硬(ying)度(du)(du)计(ji)大(da)划伤和外来(lai)(lai)物，工(gong)作(zuo)平(ping)台应(ying)(ying)(ying)稳固(gu)(gu)地安(an)装(zhuang)在(zai)(zai)丝(si)杠(gang)上(shang)，不应(ying)(ying)(ying)有晃(huang)动。支撑(cheng)面(mian)(mian)任(ren)何可观察(cha)到(dao)(dao)的(de)(de)(de)压(ya)(ya)(ya)坑都(dou)会(hui)给薄材(cai)试(shi)验造(zao)成不准确(que)的(de)(de)(de)结果(guo)。工(gong)作(zuo)平(ping)台应(ying)(ying)(ying)稳固(gu)(gu)地安(an)装(zhuang)在(zai)(zai)丝(si)杠(gang)上(shang)，不应(ying)(ying)(ying)有晃(huang)动。支撑(cheng)面(mian)(mian)任(ren)何可观察(cha)到(dao)(dao)的(de)(de)(de)压(ya)(ya)(ya)坑都(dou)会(hui)给薄材(cai)试(shi)验造(zao)成不准确(que)的(de)(de)(de)结果(guo)。广州金(jin)属(shu)淬透(tou)性末端淬火洛(luo)氏(shi)硬(ying)度(du)(du)计(ji)哪家好洛(luo)氏(shi)硬(ying)度(du)(du)计(ji)可到(dao)(dao)国(guo)家规定(ding)的(de)(de)(de)计(ji)量院做第三方检测报告。

表(biao)(biao)(biao)面(mian)(mian)洛(luo)(luo)氏硬(ying)度(du)(du)试(shi)(shi)(shi)(shi)(shi)验采(cai)用(yong)三种试(shi)(shi)(shi)(shi)(shi)验力(li)，常用(yong)两种压头(tou)，它们(men)有(you)6种组(zu)合，对应(ying)于(yu)(yu)表(biao)(biao)(biao)面(mian)(mian)洛(luo)(luo)氏硬(ying)度(du)(du)的(de)(de)(de)(de)6个(ge)标(biao)(biao)尺。表(biao)(biao)(biao)面(mian)(mian)洛(luo)(luo)氏硬(ying)度(du)(du)试(shi)(shi)(shi)(shi)(shi)验是对洛(luo)(luo)氏硬(ying)度(du)(du)试(shi)(shi)(shi)(shi)(shi)验的(de)(de)(de)(de)一(yi)种补充，在(zai)采(cai)用(yong)洛(luo)(luo)氏硬(ying)度(du)(du)试(shi)(shi)(shi)(shi)(shi)验时，当遇到材料(liao)较(jiao)薄(bo)，试(shi)(shi)(shi)(shi)(shi)样较(jiao)小(xiao)，表(biao)(biao)(biao)面(mian)(mian)硬(ying)化层(ceng)较(jiao)浅或测(ce)试(shi)(shi)(shi)(shi)(shi)表(biao)(biao)(biao)面(mian)(mian)镀覆层(ceng)时，就应(ying)改用(yong)表(biao)(biao)(biao)面(mian)(mian)洛(luo)(luo)氏硬(ying)度(du)(du)试(shi)(shi)(shi)(shi)(shi)验。这(zhei)时采(cai)用(yong)与洛(luo)(luo)氏硬(ying)度(du)(du)试(shi)(shi)(shi)(shi)(shi)验相同的(de)(de)(de)(de)压头(tou)，采(cai)用(yong)只(zhi)有(you)洛(luo)(luo)氏硬(ying)度(du)(du)试(shi)(shi)(shi)(shi)(shi)验几分之一(yi)大小(xiao)的(de)(de)(de)(de)试(shi)(shi)(shi)(shi)(shi)验力(li)，就可以在(zai)上述试(shi)(shi)(shi)(shi)(shi)样上得到有(you)效的(de)(de)(de)(de)硬(ying)度(du)(du)试(shi)(shi)(shi)(shi)(shi)验结果。表(biao)(biao)(biao)面(mian)(mian)洛(luo)(luo)氏硬(ying)度(du)(du)的(de)(de)(de)(de)N标(biao)(biao)尺适(shi)用(yong)于(yu)(yu)类似(si)洛(luo)(luo)氏硬(ying)度(du)(du)的(de)(de)(de)(de)HRC、HRA和HRD测(ce)试(shi)(shi)(shi)(shi)(shi)的(de)(de)(de)(de)材料(liao)；洛(luo)(luo)氏硬(ying)度(du)(du)计(ji)T标(biao)(biao)尺适(shi)用(yong)于(yu)(yu)类似(si)洛(luo)(luo)氏硬(ying)度(du)(du)的(de)(de)(de)(de)HRB、HRF和HRG测(ce)试(shi)(shi)(shi)(shi)(shi)的(de)(de)(de)(de)材料(liao)。

洛(luo)(luo)氏(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)计(ji)的(de)(de)(de)(de)使用(yong)(yong)方法相对简单，首先需要选择(ze)合适的(de)(de)(de)(de)压(ya)(ya)头和负(fu)荷大(da)小，然(ran)后(hou)将压(ya)(ya)头放在(zai)(zai)材(cai)料表面(mian)上(shang)，通过旋转螺旋装(zhuang)置施加一定(ding)(ding)的(de)(de)(de)(de)负(fu)荷。负(fu)荷施加后(hou)，保(bao)持(chi)一定(ding)(ding)的(de)(de)(de)(de)时间，然(ran)后(hou)卸(xie)载负(fu)荷，使用(yong)(yong)显微镜测量(liang)压(ya)(ya)痕的(de)(de)(de)(de)直径(jing)。末端，根据公(gong)式计(ji)算出(chu)洛(luo)(luo)氏(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)值(zhi)。洛(luo)(luo)氏(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)计(ji)具有测量(liang)简便、结果准确、重复(fu)性(xing)(xing)好等(deng)优点，因此被广泛应用(yong)(yong)于各个行业。在(zai)(zai)金属材(cai)料领域，洛(luo)(luo)氏(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)计(ji)可以用(yong)(yong)来评估(gu)材(cai)料的(de)(de)(de)(de)硬(ying)(ying)(ying)(ying)度(du)(du)，从(cong)而判断材(cai)料的(de)(de)(de)(de)强(qiang)度(du)(du)和耐磨性(xing)(xing)。在(zai)(zai)塑料和橡胶领域，洛(luo)(luo)氏(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)计(ji)可以用(yong)(yong)来评估(gu)材(cai)料的(de)(de)(de)(de)硬(ying)(ying)(ying)(ying)度(du)(du)和弹性(xing)(xing)，从(cong)而判断材(cai)料的(de)(de)(de)(de)质量(liang)和可用(yong)(yong)性(xing)(xing)。洛(luo)(luo)氏(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)计(ji)具有硬(ying)(ying)(ying)(ying)度(du)(du)值(zhi)转换功能：可转换为维氏(shi)(shi)、布氏(shi)(shi)、洛(luo)(luo)氏(shi)(shi)、表洛(luo)(luo)等(deng)。

布(bu)氏(shi)(shi)(shi)(shi)硬(ying)(ying)(ying)度(du)(du)(du)(du)试(shi)验(yan)(yan)(yan)(yan)的(de)(de)(de)特点是(shi)压(ya)(ya)痕(hen)(hen)较(jiao)大，成品检验(yan)(yan)(yan)(yan)有(you)困难，试(shi)验(yan)(yan)(yan)(yan)过程比(bi)洛(luo)(luo)氏(shi)(shi)(shi)(shi)硬(ying)(ying)(ying)度(du)(du)(du)(du)试(shi)验(yan)(yan)(yan)(yan)复(fu)杂，测(ce)(ce)量(liang)操作(zuo)(zuo)和压(ya)(ya)痕(hen)(hen)测(ce)(ce)量(liang)都比(bi)较(jiao)费时，并且由(you)于压(ya)(ya)痕(hen)(hen)边缘的(de)(de)(de)凸起(qi)、凹陷(xian)或圆(yuan)滑过渡都会使压(ya)(ya)痕(hen)(hen)直径的(de)(de)(de)测(ce)(ce)量(liang)产生(sheng)较(jiao)大误差，因此要(yao)(yao)求操作(zuo)(zuo)者具(ju)(ju)有(you)熟练(lian)的(de)(de)(de)试(shi)验(yan)(yan)(yan)(yan)技术(shu)和丰富经验(yan)(yan)(yan)(yan)，一(yi)般要(yao)(yao)求由(you)专门的(de)(de)(de)实验(yan)(yan)(yan)(yan)员(yuan)操作(zuo)(zuo)。硬(ying)(ying)(ying)度(du)(du)(du)(du)表示材(cai)(cai)料(liao)抵抗(kang)硬(ying)(ying)(ying)物体(ti)压(ya)(ya)入其表面的(de)(de)(de)能(neng)(neng)力(li)。它(ta)是(shi)金(jin)属材(cai)(cai)料(liao)的(de)(de)(de)重要(yao)(yao)性(xing)(xing)能(neng)(neng)指(zhi)标(biao)(biao)之一(yi)。一(yi)般硬(ying)(ying)(ying)度(du)(du)(du)(du)越(yue)(yue)高，耐磨(mo)性(xing)(xing)越(yue)(yue)好。常用的(de)(de)(de)硬(ying)(ying)(ying)度(du)(du)(du)(du)指(zhi)标(biao)(biao)有(you)布(bu)氏(shi)(shi)(shi)(shi)硬(ying)(ying)(ying)度(du)(du)(du)(du)、洛(luo)(luo)氏(shi)(shi)(shi)(shi)硬(ying)(ying)(ying)度(du)(du)(du)(du)和维氏(shi)(shi)(shi)(shi)硬(ying)(ying)(ying)度(du)(du)(du)(du)。金(jin)属材(cai)(cai)料(liao)的(de)(de)(de)各种硬(ying)(ying)(ying)度(du)(du)(du)(du)值(zhi)之间(jian)，硬(ying)(ying)(ying)度(du)(du)(du)(du)值(zhi)与强度(du)(du)(du)(du)值(zhi)之间(jian)具(ju)(ju)有(you)近似的(de)(de)(de)相应(ying)关系(xi)(xi)。因为硬(ying)(ying)(ying)度(du)(du)(du)(du)值(zhi)是(shi)由(you)起(qi)始塑性(xing)(xing)变形(xing)(xing)抗(kang)力(li)和继续(xu)塑性(xing)(xing)变形(xing)(xing)抗(kang)力(li)决定的(de)(de)(de)，材(cai)(cai)料(liao)的(de)(de)(de)强度(du)(du)(du)(du)越(yue)(yue)高，塑性(xing)(xing)变形(xing)(xing)抗(kang)力(li)越(yue)(yue)高，洛(luo)(luo)氏(shi)(shi)(shi)(shi)硬(ying)(ying)(ying)度(du)(du)(du)(du)计硬(ying)(ying)(ying)度(du)(du)(du)(du)值(zhi)也就越(yue)(yue)高。但各种材(cai)(cai)料(liao)的(de)(de)(de)换算关系(xi)(xi)并不一(yi)致。洛(luo)(luo)氏(shi)(shi)(shi)(shi)硬(ying)(ying)(ying)度(du)(du)(du)(du)计工作(zuo)(zuo)平(ping)台应(ying)稳(wen)固地(di)安装在丝杠(gang)上，不应(ying)有(you)晃动。郑州洛(luo)(luo)氏(shi)(shi)(shi)(shi)硬(ying)(ying)(ying)度(du)(du)(du)(du)计哪家好

洛氏硬度计由于压(ya)痕较大，一(yi)般不用于成品检测(ce)。柳州高阶洛氏硬度计测(ce)试标准

全自(zi)(zi)动(dong)(dong)(dong)数(shu)显洛(luo)(luo)氏(shi)(shi)(shi)硬(ying)(ying)(ying)度(du)(du)(du)(du)(du)计(ji)特(te)点(dian)：自(zi)(zi)动(dong)(dong)(dong)升降(jiang)丝杠、自(zi)(zi)动(dong)(dong)(dong)选择试(shi)验(yan)(yan)力(li)、自(zi)(zi)动(dong)(dong)(dong)加(jia)载初试(shi)验(yan)(yan)力(li)、自(zi)(zi)动(dong)(dong)(dong)加(jia)载主(zhu)试(shi)验(yan)(yan)力(li)，自(zi)(zi)动(dong)(dong)(dong)卸载、自(zi)(zi)动(dong)(dong)(dong)显示(shi)硬(ying)(ying)(ying)度(du)(du)(du)(du)(du)值(zhi)，操(cao)作步骤：一键(jian)式(shi)操(cao)作：按启动(dong)(dong)(dong)键(jian)，工作台自(zi)(zi)动(dong)(dong)(dong)上(shang)(shang)升，样品触(chu)碰(peng)到(dao)压头后自(zi)(zi)动(dong)(dong)(dong)加(jia)载，自(zi)(zi)动(dong)(dong)(dong)卸载，自(zi)(zi)动(dong)(dong)(dong)显示(shi)硬(ying)(ying)(ying)度(du)(du)(du)(du)(du)值(zhi)。（工作台自(zi)(zi)动(dong)(dong)(dong)升降(jiang)（没(mei)有高度(du)(du)(du)(du)(du)限制(zhi)），无需人工转动(dong)(dong)(dong)丝杆旋轮。）洛(luo)(luo)氏(shi)(shi)(shi)硬(ying)(ying)(ying)度(du)(du)(du)(du)(du)计(ji)是依据(ju)洛(luo)(luo)氏(shi)(shi)(shi)硬(ying)(ying)(ying)度(du)(du)(du)(du)(du)试(shi)验(yan)(yan)原理设(she)计(ji)的，只(zhi)需要(yao)单(dan)(dan)侧接触(chu)试(shi)样便可测(ce)试(shi)金属硬(ying)(ying)(ying)度(du)(du)(du)(du)(du)。现我国(guo)已(yi)生产触(chu)摸屏控制(zhi)和数(shu)值(zhi)显示(shi)以(yi)及曲线显示(shi)并自(zi)(zi)动(dong)(dong)(dong)打印测(ce)试(shi)数(shu)据(ju)的洛(luo)(luo)氏(shi)(shi)(shi)硬(ying)(ying)(ying)度(du)(du)(du)(du)(du)计(ji)。洛(luo)(luo)氏(shi)(shi)(shi)硬(ying)(ying)(ying)度(du)(du)(du)(du)(du)计(ji)的特(te)点(dian)是操(cao)作简(jian)单(dan)(dan)，测(ce)量迅(xun)速，并可从百(bai)分(fen)表或光学投(tou)影屏上(shang)(shang)直接读(du)数(shu)。同布氏(shi)(shi)(shi)和维氏(shi)(shi)(shi)硬(ying)(ying)(ying)度(du)(du)(du)(du)(du)检(jian)测(ce)法(fa)一样，洛(luo)(luo)氏(shi)(shi)(shi)硬(ying)(ying)(ying)度(du)(du)(du)(du)(du)计(ji)成为(wei)三种较常(chang)用(yong)的硬(ying)(ying)(ying)度(du)(du)(du)(du)(du)检(jian)测(ce)法(fa)之一。柳(liu)州高阶洛(luo)(luo)氏(shi)(shi)(shi)硬(ying)(ying)(ying)度(du)(du)(du)(du)(du)计(ji)测(ce)试(shi)标准

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