• 
• 
• 
• 
• 

<荊州>福偉達管業有限公司始終堅持以市場和用戶需求為導向，以完善的管理體系和質量保證體系為基礎，通過與國內外專業研究機構開展廣泛的學研合作，開展荊州技術開發和系統集成服務，使公司產品走向系列化。憑借優厚的技術實力及研發創新的產品實力，在全國二十多個省、市、自治區形成銷售網絡，荊州產品遍布電廠、化工廠、鋼鐵廠、造紙、環保等多領域。

不(bu)(bu)銹(xiu)鋼(gang)(gang)(gang)(gang)管是(shi)一(yi)(yi)種基本的(de)(de)(de)(de)(de)(de)管材(cai)，所以(yi)(yi)(yi)(yi)它也有(you)(you)良(liang)多硬(ying)(ying)(ying)(ying)性的(de)(de)(de)(de)(de)(de)必需的(de)(de)(de)(de)(de)(de)指(zhi)標，包括良(liang)多方(fang)面(mian)(mian)，下面(mian)(mian)我們要講的(de)(de)(de)(de)(de)(de)就是(shi)關于不(bu)(bu)銹(xiu)鋼(gang)(gang)(gang)(gang)焊(han)(han)管的(de)(de)(de)(de)(de)(de)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)指(zhi)標。根(gen)據試(shi)(shi)(shi)(shi)驗(yan)方(fang)法和(he)合(he)用(yong)(yong)(yong)范圍不(bu)(bu)同，硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)又(you)可(ke)分為(wei)布(bu)(bu)氏(shi)(shi)(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)，洛氏(shi)(shi)(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)，維氏(shi)(shi)(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)，肖氏(shi)(shi)(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)，顯微硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)和(he)高(gao)溫硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)等(deng)。對(dui)于管材(cai)一(yi)(yi)般(ban)常用(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)有(you)(you)布(bu)(bu)氏(shi)(shi)(shi)(shi)，洛氏(shi)(shi)(shi)(shi)，維氏(shi)(shi)(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)三種。1、布(bu)(bu)氏(shi)(shi)(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)(HB用(yong)(yong)(yong)一(yi)(yi)定(ding)直(zhi)徑(jing)(jing)(jing)(jing)的(de)(de)(de)(de)(de)(de)鋼(gang)(gang)(gang)(gang)球(qiu)或硬(ying)(ying)(ying)(ying)質(zhi)合(he)金球(qiu)，以(yi)(yi)(yi)(yi)劃定(ding)的(de)(de)(de)(de)(de)(de)試(shi)(shi)(shi)(shi)驗(yan)力(li)(li)(F)壓(ya)入式(shi)(shi)樣(yang)(yang)(yang)表(biao)(biao)面(mian)(mian)，經(jing)劃定(ding)保持(chi)時間后卸除(chu)(chu)試(shi)(shi)(shi)(shi)驗(yan)力(li)(li)，丈量試(shi)(shi)(shi)(shi)樣(yang)(yang)(yang)表(biao)(biao)面(mian)(mian)的(de)(de)(de)(de)(de)(de)壓(ya)痕直(zhi)徑(jing)(jing)(jing)(jing)(L)布(bu)(bu)氏(shi)(shi)(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)值(zhi)(zhi)是(shi)以(yi)(yi)(yi)(yi)試(shi)(shi)(shi)(shi)驗(yan)力(li)(li)除(chu)(chu)以(yi)(yi)(yi)(yi)壓(ya)痕球(qiu)形(xing)表(biao)(biao)面(mian)(mian)積所得(de)的(de)(de)(de)(de)(de)(de)商。以(yi)(yi)(yi)(yi)HBS(鋼(gang)(gang)(gang)(gang)球(qiu))表(biao)(biao)示(shi)，單位(wei)(wei)為(wei)N/mm2(MPa其計(ji)算(suan)公式(shi)(shi)為(wei)式(shi)(shi)中(zhong)(zhong)：F--壓(ya)入不(bu)(bu)銹(xiu)鋼(gang)(gang)(gang)(gang)焊(han)(han)管試(shi)(shi)(shi)(shi)樣(yang)(yang)(yang)表(biao)(biao)面(mian)(mian)的(de)(de)(de)(de)(de)(de)試(shi)(shi)(shi)(shi)驗(yan)力(li)(li)，N，D--試(shi)(shi)(shi)(shi)驗(yan)用(yong)(yong)(yong)鋼(gang)(gang)(gang)(gang)球(qiu)直(zhi)徑(jing)(jing)(jing)(jing)，mmd--壓(ya)痕均勻直(zhi)徑(jing)(jing)(jing)(jing)，mm.測定(ding)布(bu)(bu)氏(shi)(shi)(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)較正(zheng)確可(ke)靠(kao)，但一(yi)(yi)般(ban)HBS只合(he)用(yong)(yong)(yong)于450N/mm2(MPa)以(yi)(yi)(yi)(yi)下的(de)(de)(de)(de)(de)(de)金屬材(cai)料，對(dui)于較硬(ying)(ying)(ying)(ying)的(de)(de)(de)(de)(de)(de)鋼(gang)(gang)(gang)(gang)或較薄的(de)(de)(de)(de)(de)(de)不(bu)(bu)銹(xiu)鋼(gang)(gang)(gang)(gang)焊(han)(han)管不(bu)(bu)合(he)用(yong)(yong)(yong)。在不(bu)(bu)銹(xiu)鋼(gang)(gang)(gang)(gang)焊(han)(han)管尺度(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)中(zhong)(zhong)，布(bu)(bu)氏(shi)(shi)(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)用(yong)(yong)(yong)途(tu)廣，往(wang)往(wang)以(yi)(yi)(yi)(yi)壓(ya)痕直(zhi)徑(jing)(jing)(jing)(jing)d來表(biao)(biao)示(shi)該(gai)材(cai)料的(de)(de)(de)(de)(de)(de)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)，既直(zhi)觀，又(you)利便。舉例：120HBS10/表(biao)(biao)示(shi)用(yong)(yong)(yong)直(zhi)徑(jing)(jing)(jing)(jing)10mm鋼(gang)(gang)(gang)(gang)球(qiu)在1000Kgf(9.807KN)試(shi)(shi)(shi)(shi)驗(yan)力(li)(li)作(zuo)用(yong)(yong)(yong)下，保持(chi)30s(秒)測得(de)的(de)(de)(de)(de)(de)(de)布(bu)(bu)氏(shi)(shi)(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)值(zhi)(zhi)為(wei)120N/mm2(MPa)。2、洛氏(shi)(shi)(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)(HK)洛氏(shi)(shi)(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)試(shi)(shi)(shi)(shi)驗(yan)同布(bu)(bu)氏(shi)(shi)(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)試(shi)(shi)(shi)(shi)驗(yan)一(yi)(yi)樣(yang)(yang)(yang)，都是(shi)壓(ya)痕試(shi)(shi)(shi)(shi)驗(yan)方(fang)法。不(bu)(bu)同的(de)(de)(de)(de)(de)(de)是(shi)，它是(shi)丈量壓(ya)痕的(de)(de)(de)(de)(de)(de)深度(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)，即在初邕試(shi)(shi)(shi)(shi)驗(yan)力(li)(li)(Fo)及總試(shi)(shi)(shi)(shi)驗(yan)力(li)(li)(F)的(de)(de)(de)(de)(de)(de)先后作(zuo)用(yong)(yong)(yong)下，將壓(ya)頭(金鋼(gang)(gang)(gang)(gang)廠(chang)圓錐體或鋼(gang)(gang)(gang)(gang)球(qiu))壓(ya)入試(shi)(shi)(shi)(shi)樣(yang)(yang)(yang)表(biao)(biao)面(mian)(mian)，經(jing)劃定(ding)保持(chi)時間后，卸除(chu)(chu)主試(shi)(shi)(shi)(shi)驗(yan)力(li)(li)，用(yong)(yong)(yong)丈量的(de)(de)(de)(de)(de)(de)殘余(yu)壓(ya)痕深度(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)增量(e)計(ji)算(suan)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)值(zhi)(zhi)。其值(zhi)(zhi)是(shi)個(ge)無(wu)名(ming)數，以(yi)(yi)(yi)(yi)符(fu)號HR表(biao)(biao)示(shi)，所用(yong)(yong)(yong)標尺有(you)(you)A，B，C，D，E，F，G，H，K等(deng)9個(ge)標尺。其中(zhong)(zhong)常用(yong)(yong)(yong)于不(bu)(bu)銹(xiu)鋼(gang)(gang)(gang)(gang)焊(han)(han)管硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)試(shi)(shi)(shi)(shi)驗(yan)的(de)(de)(de)(de)(de)(de)標尺一(yi)(yi)般(ban)為(wei)A，B，C，即HRA，HRB，HRC。硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)值(zhi)(zhi)用(yong)(yong)(yong)下式(shi)(shi)計(ji)算(suan)：當用(yong)(yong)(yong)A和(he)C標尺試(shi)(shi)(shi)(shi)驗(yan)時，HR=100-e當用(yong)(yong)(yong)B標尺試(shi)(shi)(shi)(shi)驗(yan)時，HR=130-e式(shi)(shi)中(zhong)(zhong)e--殘余(yu)壓(ya)痕深度(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)增量，其什系以(yi)(yi)(yi)(yi)劃定(ding)單位(wei)(wei)0.002mm示(shi)，即當壓(ya)頭軸向位(wei)(wei)移一(yi)(yi)個(ge)單位(wei)(wei)(0.002mm)時，即相稱于洛氏(shi)(shi)(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)(du)(du)(du)(du)(du)(du)變(bian)化一(yi)(yi)個(ge)數。