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青海(hai)DN500不銹鋼管價格免費咨(zi)詢

<青海>福偉達管(guan)業有(you)限公(gong)司自成立以來，一直以“誠信服務、誠信合(he)作”的(de)經營理(li)念(nian)為基本準則(ze)，贏得了廣(guang)大客戶以及青海企業的(de)信任(ren)和(he)支持。歡迎(ying)廣(guang)大新(xin)老(lao)客戶前(qian)來洽(qia)談。

  一(yi)(yi)些用(yong)(yong)(yong)(yong)(yong)戶在(zai)購買304不(bu)(bu)(bu)(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)時(shi)，常(chang)常(chang)會根據管(guan)(guan)(guan)(guan)(guan)(guan)(guan)材(cai)(cai)的(de)(de)(de)(de)(de)(de)(de)軟(ruan)硬(ying)(ying)(ying)(ying)來(lai)判(pan)斷(duan)304不(bu)(bu)(bu)(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)好(hao)(hao)壞(huai)。這一(yi)(yi)做(zuo)法(fa)可(ke)(ke)(ke)以(yi)說也(ye)(ye)對(dui)也(ye)(ye)不(bu)(bu)(bu)(bu)(bu)對(dui)。單(dan)(dan)純(chun)憑借304不(bu)(bu)(bu)(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)是無法(fa)判(pan)斷(duan)質(zhi)量(liang)(liang)(liang)好(hao)(hao)壞(huai)的(de)(de)(de)(de)(de)(de)(de)。今(jin)天小(xiao)編就(jiu)給大(da)家(jia)分(fen)析下：什么是不(bu)(bu)(bu)(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)，它又有(you)(you)什么不(bu)(bu)(bu)(bu)(bu)同(tong)(tong)呢?  經常(chang)用(yong)(yong)(yong)(yong)(yong)來(lai)衡量(liang)(liang)(liang)不(bu)(bu)(bu)(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)的(de)(de)(de)(de)(de)(de)(de)指標(biao)主要(yao)有(you)(you)布氏(shi)(shi)、洛(luo)氏(shi)(shi)、維(wei)氏(shi)(shi)三(san)種(zhong)(zhong)，不(bu)(bu)(bu)(bu)(bu)同(tong)(tong)之處(chu)如下： 1、維(wei)氏(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)(代號HV)  不(bu)(bu)(bu)(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)維(wei)氏(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)試(shi)驗(yan)(yan)(yan)是一(yi)(yi)種(zhong)(zhong)壓(ya)痕(hen)試(shi)驗(yan)(yan)(yan)方(fang)(fang)法(fa)，可(ke)(ke)(ke)用(yong)(yong)(yong)(yong)(yong)于測定很薄(bo)的(de)(de)(de)(de)(de)(de)(de)金(jin)屬材(cai)(cai)料(liao)和表面(mian)(mian)層硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)。具(ju)有(you)(you)布氏(shi)(shi)、洛(luo)氏(shi)(shi)測試(shi)法(fa)的(de)(de)(de)(de)(de)(de)(de)主要(yao)優點(dian)，但(dan)是克服了它們(men)(men)的(de)(de)(de)(de)(de)(de)(de)基本缺點(dian)，卻不(bu)(bu)(bu)(bu)(bu)如洛(luo)氏(shi)(shi)法(fa)簡便，而且維(wei)氏(shi)(shi)法(fa)在(zai)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)標(biao)準(zhun)中(zhong)很少使(shi)用(yong)(yong)(yong)(yong)(yong)。不(bu)(bu)(bu)(bu)(bu)過維(wei)氏(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)計(ji)測量(liang)(liang)(liang)范圍寬(kuan)廣，可(ke)(ke)(ke)以(yi)測量(liang)(liang)(liang)目前工(gong)業(ye)上所用(yong)(yong)(yong)(yong)(yong)到的(de)(de)(de)(de)(de)(de)(de)幾乎全部金(jin)屬材(cai)(cai)料(liao)。  2、布氏(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)(代號HB)  在(zai)不(bu)(bu)(bu)(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)標(biao)準(zhun)中(zhong)，布氏(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)用(yong)(yong)(yong)(yong)(yong)途廣，往(wang)往(wang)以(yi)壓(ya)痕(hen)直(zhi)徑來(lai)表示(shi)該(gai)材(cai)(cai)料(liao)的(de)(de)(de)(de)(de)(de)(de)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)，既(ji)直(zhi)觀，又方(fang)(fang)便。但(dan)是對(dui)于較(jiao)硬(ying)(ying)(ying)(ying)或較(jiao)薄(bo)的(de)(de)(de)(de)(de)(de)(de)鋼(gang)(gang)(gang)材(cai)(cai)及鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)并(bing)不(bu)(bu)(bu)(bu)(bu)適用(yong)(yong)(yong)(yong)(yong)。  3、洛(luo)氏(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)(代號HR)  同(tong)(tong)布氏(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)試(shi)驗(yan)(yan)(yan)一(yi)(yi)樣，都是壓(ya)痕(hen)試(shi)驗(yan)(yan)(yan)方(fang)(fang)法(fa)。但(dan)它是測量(liang)(liang)(liang)壓(ya)痕(hen)的(de)(de)(de)(de)(de)(de)(de)深度(du)(du)(du)(du)。洛(luo)氏(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)試(shi)驗(yan)(yan)(yan)是目前應用(yong)(yong)(yong)(yong)(yong)很廣的(de)(de)(de)(de)(de)(de)(de)方(fang)(fang)法(fa)，但(dan)是洛(luo)氏(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)標(biao)尺有(you)(you)A、B、C三(san)種(zhong)(zhong)標(biao)準(zhun)，通常(chang)記作HRA、HRB、HRC，表示(shi)方(fang)(fang)法(fa)為硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)數(shu)據+硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)符(fu)號，如50HRC。其中(zhong)HRC在(zai)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)標(biao)準(zhun)中(zhong)使(shi)用(yong)(yong)(yong)(yong)(yong)僅(jin)次于布氏(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)HB。洛(luo)氏(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)可(ke)(ke)(ke)適用(yong)(yong)(yong)(yong)(yong)于測定由極(ji)軟(ruan)到極(ji)硬(ying)(ying)(ying)(ying)的(de)(de)(de)(de)(de)(de)(de)金(jin)屬材(cai)(cai)料(liao)，并(bing)可(ke)(ke)(ke)直(zhi)接從硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)機的(de)(de)(de)(de)(de)(de)(de)表盤讀(du)出(chu)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)值。但(dan)是硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)值不(bu)(bu)(bu)(bu)(bu)如布氏(shi)(shi)法(fa)準(zhun)確。當被測樣品過小(xiao)或者布氏(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)(HB)大(da)于450時(shi)，就(jiu)改用(yong)(yong)(yong)(yong)(yong)洛(luo)氏(shi)(shi)硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)計(ji)量(liang)(liang)(liang)。  我(wo)們(men)(men)常(chang)用(yong)(yong)(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)兩種(zhong)(zhong)不(bu)(bu)(bu)(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)(gang)(gang)裝飾管(guan)(guan)(guan)(guan)(guan)(guan)(guan)材(cai)(cai)質(zhi)是201不(bu)(bu)(bu)(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)和304不(bu)(bu)(bu)(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)。影響(xiang)二(er)者硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)的(de)(de)(de)(de)(de)(de)(de)主要(yao)因素是原(yuan)材(cai)(cai)料(liao)里(li)碳(tan)(tan)的(de)(de)(de)(de)(de)(de)(de)含量(liang)(liang)(liang)，碳(tan)(tan)元素在(zai)不(bu)(bu)(bu)(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)中(zhong)主要(yao)是提高(gao)其硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)，但(dan)是并(bing)不(bu)(bu)(bu)(bu)(bu)是硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)越(yue)高(gao)越(yue)好(hao)(hao)，碳(tan)(tan)含量(liang)(liang)(liang)越(yue)高(gao)不(bu)(bu)(bu)(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)可(ke)(ke)(ke)塑性(xing)越(yue)低，并(bing)且越(yue)易生銹(xiu)(xiu)(xiu)。而在(zai)201不(bu)(bu)(bu)(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)中(zhong)影響(xiang)其硬(ying)(ying)(ying)(ying)度(du)(du)(du)(du)的(de)(de)(de)(de)(de)(de)(de)還有(you)(you)一(yi)(yi)個因素就(jiu)是里(li)面(mian)(mian)銅(tong)元素的(de)(de)(de)(de)(de)(de)(de)含量(liang)(liang)(liang)，含銅(tong)高(gao)的(de)(de)(de)(de)(de)(de)(de)201不(bu)(bu)(bu)(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)韌性(xing)更好(hao)(hao)，可(ke)(ke)(ke)塑性(xing)增強，管(guan)(guan)(guan)(guan)(guan)(guan)(guan)材(cai)(cai)偏軟(ruan)。  所以(yi)，單(dan)(dan)純(chun)的(de)(de)(de)(de)(de)(de)(de)憑借304不(bu)(bu)(bu)(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)或201不(bu)(bu)(bu)(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)軟(ruan)硬(ying)(ying)(ying)(ying)來(lai)判(pan)斷(duan)不(bu)(bu)(bu)(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)(de)(de)質(zhi)量(liang)(liang)(liang)是不(bu)(bu)(bu)(bu)(bu)準(zhun)確的(de)(de)(de)(de)(de)(de)(de)，小(xiao)編建議您在(zai)購買時(shi)還是要(yao)選擇質(zhi)量(liang)(liang)(liang)有(you)(you)保證的(de)(de)(de)(de)(de)(de)(de)不(bu)(bu)(bu)(bu)(bu)銹(xiu)(xiu)(xiu)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)生產廠家(jia)。