做型號核準認證機構有哪些
SRRC型(xing)(xing)(xing)號(hao)核(he)(he)準(zhun)(zhun)(zhun)認(ren)證測(ce)試(shi)項目有(you)哪(na)些?可(ke)以(yi)聯系我司(si)貝(bei)斯(si)通檢測(ce)了解詳(xiang)情。中國(guo)(guo)型(xing)(xing)(xing)號(hao)審批(pi)”,簡稱(cheng)“SRRC”,是一項用(yong)(yong)于(yu)區(qu)分無(wu)線(xian)頻(pin)(pin)段(duan)民用(yong)(yong)和(he)JUN用(yong)(yong)頻(pin)(pin)段(duan)的國(guo)(guo)家強制性認(ren)證。從研制、生產(chan)、進(jin)口(kou)、采購(gou)環節開(kai)始,它(ta)就(jiu)是對無(wu)線(xian)傳輸設備頻(pin)(pin)譜參(can)數和(he)技術(shu)指標的技術(shu)管理(li)。要求進(jin)行(xing)SRRC型(xing)(xing)(xing)號(hao)認(ren)可(ke)認(ren)證歡迎(ying)來電我們聯系貝(bei)斯(si)通檢測(ce)進(jin)行(xing)辦理(li)。無(wu)線(xian)電SRRC型(xing)(xing)(xing)號(hao)測(ce)試(shi)項目:1.所測(ce)設備型(xing)(xing)(xing)號(hao)應有(you)試(shi)驗程序、方(fang)法(fa)、標準(zhun)(zhun)(zhun)、條件(jian)、試(shi)驗連接框圖(tu)和(he)測(ce)試(shi)附件(jian)以(yi)及(ji)ZUI新(xin)試(shi)驗報告(gao)(復(fu)印(yin)或復(fu)印(yin))2.被測(ce)設備的發(fa)(fa)射端(duan)C為非標準(zhun)(zhun)(zhun)接口(kou)的,需要提供(gong)被測(ce)設備測(ce)試(shi)連接電纜以(yi)及(ji)蓋公司(si)印(yin)章的電纜衰減(jian)值文字(zi)或圖(tu)表基(ji)礎。3.申請人應根據需要派遣(qian)工(gong)程技術(shu)人員前來參(can)加檢測(ce)工(gong)作(zuo)。核(he)(he)發(fa)(fa)“無(wu)線(xian)電發(fa)(fa)射設備型(xing)(xing)(xing)號(hao)核(he)(he)準(zhun)(zhun)(zhun)證”和(he)型(xing)(xing)(xing)號(hao)核(he)(he)準(zhun)(zhun)(zhun)代碼,出(chu)廠設備的標牌上須標明型(xing)(xing)(xing)號(hao)核(he)(he)準(zhun)(zhun)(zhun)代碼。做型(xing)(xing)(xing)號(hao)核(he)(he)準(zhun)(zhun)(zhun)認(ren)證機構(gou)有(you)哪(na)些
無線(xian)(xian)電(dian)(dian)(dian)型(xing)號核(he)(he)準證(zheng)申請(qing)流程: 1.境外制造商或其(qi)授(shou)權的國內代(dai)理(li)(li)(li)(li)(li)機(ji)構向工(gong)業和(he)(he)信息(xi)化部行政(zheng)許(xu)可(無線(xian)(xian)電(dian)(dian)(dian)業務受(shou)(shou)理(li)(li)(li)(li)(li))提(ti)交書(shu)(shu)面(mian)申請(qing)和(he)(he)有(you)關材(cai)料(liao)(liao); 2.國內制造商向工(gong)業和(he)(he)信息(xi)化部申請(qing)行政(zheng)許(xu)可,具體包括(kuo)提(ti)交書(shu)(shu)面(mian)申請(qing)和(he)(he)有(you)關材(cai)料(liao)(liao); 3.省(sheng)(sheng)級(ji)無線(xian)(xian)電(dian)(dian)(dian)管(guan)理(li)(li)(li)(li)(li)機(ji)構(含其(qi)派(pai)出機(ji)構)受(shou)(shou)理(li)(li)(li)(li)(li); 4.升級(ji)無線(xian)(xian)電(dian)(dian)(dian)管(guan)理(li)(li)(li)(li)(li)機(ji)構初(chu)審(shen)并(bing)簽署意見,審(shen)核(he)(he)同(tong)意進(jin)入下一步(bu)審(shen)查;不同(tong)意需(xu)(xu)重(zhong)新提(ti)交書(shu)(shu)面(mian)申請(qing); 5.省(sheng)(sheng)級(ji)無線(xian)(xian)電(dian)(dian)(dian)管(guan)理(li)(li)(li)(li)(li)機(ji)構初(chu)審(shen)通過后對申請(qing)材(cai)料(liao)(liao)進(jin)行初(chu)步(bu)形式(shi)審(shen)查,符(fu)合條(tiao)件后辦理(li)(li)(li)(li)(li)予(yu)以受(shou)(shou)理(li)(li)(li)(li)(li)手(shou)續,并(bing)書(shu)(shu)面(mian)通知(zhi)申請(qing)者;不符(fu)合條(tiao)件要求則(ze)要求申請(qing)者補充修改材(cai)料(liao)(liao)并(bing)書(shu)(shu)面(mian)通知(zhi)不予(yu)受(shou)(shou)理(li)(li)(li)(li)(li); 6.獲(huo)得(de)(de)受(shou)(shou)理(li)(li)(li)(li)(li)手(shou)續后進(jin)行下一步(bu)批準,獲(huo)得(de)(de)批準通知(zhi)申請(qing)者;沒有(you)獲(huo)得(de)(de)批準通知(zhi)申請(qing)者并(bing)說(shuo)明(ming)理(li)(li)(li)(li)(li)由; 7.獲(huo)得(de)(de)批準后申請(qing)方或代(dai)理(li)(li)(li)(li)(li)申請(qing)單位憑受(shou)(shou)理(li)(li)(li)(li)(li)通知(zhi)書(shu)(shu)(資(zi)料(liao)(liao)接受(shou)(shou)憑證(zheng))領取《無線(xian)(xian)電(dian)(dian)(dian)設(she)備型(xing)號核(he)(he)準證(zheng)》。型(xing)號核(he)(he)準認證(zheng)什(shen)么微功率(短距離)無線(xian)(xian)電(dian)(dian)(dian)設(she)備無需(xu)(xu)型(xing)號核(he)(he)準認證(zheng)。
《中(zhong)華人(ren)民(min)共(gong)(gong)和(he)(he)國無(wu)線(xian)電(dian)管(guan)(guan)理(li)條例》是我國無(wu)線(xian)電(dian)設(she)(she)備(bei)管(guan)(guan)理(li)的(de)(de)(de)主要法規之一。該條例規定了研制(zhi)、生產和(he)(he)使用無(wu)線(xian)電(dian)設(she)(she)備(bei)所需(xu)要遵守(shou)的(de)(de)(de)法律規定,包括工(gong)作頻(pin)率、頻(pin)段(duan)、技術指標的(de)(de)(de)規定,并明確了對(dui)無(wu)線(xian)電(dian)設(she)(she)備(bei)進(jin)行核準和(he)(he)備(bei)案的(de)(de)(de)要求。2.2 進(jin)口無(wu)線(xian)電(dian)發(fa)射(she)(she)設(she)(she)備(bei)的(de)(de)(de)管(guan)(guan)理(li)規定 和(he)(he) 生產無(wu)線(xian)電(dian)發(fa)射(she)(she)設(she)(she)備(bei)的(de)(de)(de)管(guan)(guan)理(li)規定:其規定,凡(fan)向中(zhong)華人(ren)民(min)共(gong)(gong)和(he)(he)國進(jin)口無(wu)線(xian)電(dian)發(fa)射(she)(she)設(she)(she)備(bei),或在(zai)中(zhong)華人(ren)民(min)共(gong)(gong)和(he)(he)國境內生產(含試生產)的(de)(de)(de)無(wu)線(xian)電(dian)發(fa)射(she)(she)設(she)(she)備(bei),均須對(dui)其發(fa)射(she)(she)特性進(jin)行型(xing)(xing)號核準(SRRC)后核發(fa)的(de)(de)(de)《無(wu)線(xian)電(dian)發(fa)射(she)(she)設(she)(she)備(bei)型(xing)(xing)號核準證》。出廠設(she)(she)備(bei)的(de)(de)(de)標牌上須標明型(xing)(xing)號核準代碼。這是在(zai)無(wu)線(xian)電(dian)發(fa)射(she)(she)設(she)(she)備(bei)投入(ru)使用前的(de)(de)(de)研制(zhi)、生產、進(jin)口、購置等環節,對(dui)其頻(pin)譜參數技術指標依法進(jin)行技術管(guan)(guan)理(li)。
無(wu)(wu)線(xian)(xian)電(dian)(dian)頻(pin)(pin)(pin)率資(zi)源的(de)供需(xu)矛盾(dun)日(ri)趨加(jia)劇,電(dian)(dian)磁環(huan)境(jing)日(ri)益復雜,為確保國有無(wu)(wu)線(xian)(xian)電(dian)(dian)頻(pin)(pin)(pin)率資(zi)源進(jin)(jin)行統一(yi)管理(li)。自1999年6月1日(ri)起,境(jing)內銷售(shou)及使用(yong)的(de)無(wu)(wu)線(xian)(xian)電(dian)(dian)組件產(chan)(chan)品,必須(xu)(xu)(xu)取得無(wu)(wu)線(xian)(xian)電(dian)(dian)型(xing)(xing)號(hao)的(de)核(he)(he)(he)(he)(he)準(zhun)(zhun)(zhun)(zhun)(zhun)認(ren)證(zheng)。國內生產(chan)(chan)的(de)、銷售(shou)和(he)(he)使用(yong)的(de)無(wu)(wu)線(xian)(xian)電(dian)(dian)發(fa)(fa)射(she)設(she)備(bei)均(jun)須(xu)(xu)(xu)進(jin)(jin)行型(xing)(xing)號(hao)核(he)(he)(he)(he)(he)準(zhun)(zhun)(zhun)(zhun)(zhun),核(he)(he)(he)(he)(he)發(fa)(fa)核(he)(he)(he)(he)(he)準(zhun)(zhun)(zhun)(zhun)(zhun)證(zheng)和(he)(he)型(xing)(xing)號(hao)核(he)(he)(he)(he)(he)準(zhun)(zhun)(zhun)(zhun)(zhun)代碼。出廠設(she)備(bei)的(de)標(biao)牌(pai)(pai)上須(xu)(xu)(xu)標(biao)明型(xing)(xing)號(hao)核(he)(he)(he)(he)(he)準(zhun)(zhun)(zhun)(zhun)(zhun)代碼。→什么(me)是型(xing)(xing)號(hao)核(he)(he)(he)(he)(he)準(zhun)(zhun)(zhun)(zhun)(zhun)?型(xing)(xing)號(hao)核(he)(he)(he)(he)(he)準(zhun)(zhun)(zhun)(zhun)(zhun)認(ren)證(zheng)簡(jian)稱SRRC認(ren)證(zheng)型(xing)(xing)號(hao)核(he)(he)(he)(he)(he)準(zhun)(zhun)(zhun)(zhun)(zhun)是指在無(wu)(wu)線(xian)(xian)電(dian)(dian)發(fa)(fa)射(she)設(she)備(bei)投入使用(yong)前的(de)研制、生產(chan)(chan)、進(jin)(jin)口、購置(zhi)等環(huan)節(jie),對其頻(pin)(pin)(pin)譜參數(shu)(shu)技(ji)術(shu)指標(biao)依法進(jin)(jin)行技(ji)術(shu)管理(li)的(de)制度。核(he)(he)(he)(he)(he)準(zhun)(zhun)(zhun)(zhun)(zhun)主(zhu)要內容是對無(wu)(wu)線(xian)(xian)電(dian)(dian)發(fa)(fa)射(she)設(she)備(bei)工作的(de)頻(pin)(pin)(pin)率、頻(pin)(pin)(pin)段、發(fa)(fa)射(she)功率、頻(pin)(pin)(pin)率容限、占用(yong)帶寬(kuan)、帶外發(fa)(fa)射(she)及雜散發(fa)(fa)射(she)等頻(pin)(pin)(pin)譜參數(shu)(shu)進(jin)(jin)行核(he)(he)(he)(he)(he)定。→什么(me)設(she)備(bei)需(xu)要型(xing)(xing)號(hao)核(he)(he)(he)(he)(he)準(zhun)(zhun)(zhun)(zhun)(zhun)?出廠設(she)備(bei)的(de)標(biao)牌(pai)(pai)上須(xu)(xu)(xu)標(biao)明型(xing)(xing)號(hao)核(he)(he)(he)(he)(he)準(zhun)(zhun)(zhun)(zhun)(zhun)代碼。
型(xing)(xing)號(hao)(hao)核(he)準(zhun)是(shi)指根據特定(ding)的(de)(de)(de)(de)認(ren)(ren)證(zheng)(zheng)(zheng)(zheng)(zheng)標準(zhun)和要(yao)求,對產(chan)(chan)(chan)(chan)(chan)品(pin)(pin)的(de)(de)(de)(de)型(xing)(xing)號(hao)(hao)、規格和特性(xing)進(jin)行(xing)評估和驗證(zheng)(zheng)(zheng)(zheng)(zheng)的(de)(de)(de)(de)過程。通過型(xing)(xing)號(hao)(hao)核(he)準(zhun),認(ren)(ren)證(zheng)(zheng)(zheng)(zheng)(zheng)機構可(ke)以確(que)認(ren)(ren)產(chan)(chan)(chan)(chan)(chan)品(pin)(pin)是(shi)否符合相關的(de)(de)(de)(de)認(ren)(ren)證(zheng)(zheng)(zheng)(zheng)(zheng)要(yao)求,并決(jue)定(ding)是(shi)否頒發認(ren)(ren)證(zheng)(zheng)(zheng)(zheng)(zheng)證(zheng)(zheng)(zheng)(zheng)(zheng)書。型(xing)(xing)號(hao)(hao)核(he)準(zhun)的(de)(de)(de)(de)目的(de)(de)(de)(de)在于(yu)確(que)保(bao)產(chan)(chan)(chan)(chan)(chan)品(pin)(pin)在市場上的(de)(de)(de)(de)合規性(xing)和可(ke)靠(kao)(kao)性(xing),為消費者(zhe)提(ti)供(gong)安(an)全和可(ke)靠(kao)(kao)的(de)(de)(de)(de)產(chan)(chan)(chan)(chan)(chan)品(pin)(pin)。型(xing)(xing)號(hao)(hao)核(he)準(zhun)是(shi)產(chan)(chan)(chan)(chan)(chan)品(pin)(pin)認(ren)(ren)證(zheng)(zheng)(zheng)(zheng)(zheng)過程中的(de)(de)(de)(de)重(zhong)(zhong)要(yao)步驟,它確(que)保(bao)產(chan)(chan)(chan)(chan)(chan)品(pin)(pin)的(de)(de)(de)(de)型(xing)(xing)號(hao)(hao)和規格符合認(ren)(ren)證(zheng)(zheng)(zheng)(zheng)(zheng)要(yao)求,保(bao)證(zheng)(zheng)(zheng)(zheng)(zheng)產(chan)(chan)(chan)(chan)(chan)品(pin)(pin)的(de)(de)(de)(de)合法(fa)性(xing)、合規性(xing)和質量。企業在進(jin)行(xing)產(chan)(chan)(chan)(chan)(chan)品(pin)(pin)認(ren)(ren)證(zheng)(zheng)(zheng)(zheng)(zheng)時,應重(zhong)(zhong)視型(xing)(xing)號(hao)(hao)核(he)準(zhun)這一關鍵環節(jie),確(que)保(bao)產(chan)(chan)(chan)(chan)(chan)品(pin)(pin)能夠獲得(de)合規認(ren)(ren)證(zheng)(zheng)(zheng)(zheng)(zheng),并提(ti)供(gong)安(an)全可(ke)靠(kao)(kao)的(de)(de)(de)(de)產(chan)(chan)(chan)(chan)(chan)品(pin)(pin)給消費者(zhe)。無線電設備型(xing)(xing)號(hao)(hao)核(he)準(zhun)證(zheng)(zheng)(zheng)(zheng)(zheng)指的(de)(de)(de)(de)是(shi)任何類型(xing)(xing)的(de)(de)(de)(de)無線電產(chan)(chan)(chan)(chan)(chan)品(pin)(pin)所(suo)需(xu)要(yao)做的(de)(de)(de)(de)型(xing)(xing)號(hao)(hao)核(he)準(zhun)證(zheng)(zheng)(zheng)(zheng)(zheng)明。型(xing)(xing)號(hao)(hao)核(he)準(zhun)認(ren)(ren)證(zheng)(zheng)(zheng)(zheng)(zheng)什么(me)
型號(hao)核準檢測單位(wei):SRMC (State Radio Monitoring Center)國家無線電監測中心等。做(zuo)型號(hao)核準認證機構(gou)有哪(na)些(xie)
受理(li)(li)、審(shen)查(cha)和(he)決(jue)定(ding)程序(xu)(一)信息產(chan)業(ye)部無(wu)(wu)線電管理(li)(li)局對(dui)收到的(de)申請(qing)材(cai)料進行審(shen)查(cha)。申請(qing)材(cai)料不(bu)(bu)齊全或(huo)者(zhe)不(bu)(bu)符合(he)法定(ding)形式的(de),應(ying)當(dang)當(dang)場或(huo)者(zhe)在5個工(gong)作日(ri)內一次性(xing)告知(zhi)申請(qing)人需要(yao)補正的(de)材(cai)料。申請(qing)材(cai)料齊全、符合(he)法定(ding)形式,或(huo)者(zhe)申請(qing)人按(an)照要(yao)求提交全部補正材(cai)料的(de),應(ying)當(dang)予(yu)(yu)以(yi)受理(li)(li),并書面(mian)(mian)通知(zhi)申請(qing)人。不(bu)(bu)予(yu)(yu)受理(li)(li)的(de),應(ying)當(dang)書面(mian)(mian)通知(zhi)申請(qing)人。(二)信息產(chan)業(ye)部無(wu)(wu)線電管理(li)(li)局應(ying)當(dang)自受理(li)(li)之日(ri)起20個工(gong)作日(ri)內作出批(pi)準(zhun)或(huo)者(zhe)不(bu)(bu)批(pi)準(zhun)型號(hao)核(he)準(zhun)申請(qing)的(de)決(jue)定(ding)。對(dui)予(yu)(yu)以(yi)批(pi)準(zhun)的(de),核(he)發(fa)《無(wu)(wu)線電發(fa)射設備型號(hao)核(he)準(zhun)證》;對(dui)不(bu)(bu)予(yu)(yu)批(pi)準(zhun)的(de),書面(mian)(mian)通知(zhi)申請(qing)人并說(shuo)明理(li)(li)由。做型號(hao)核(he)準(zhun)認(ren)證機構(gou)有(you)哪些(xie)
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工業(ye)數據(ju)轉換器在工業(ye)自動化中的應用(yong)領域非常(chang)普(pu)遍。首先(xian),在電力系(xi)統中,數據(ju)轉換器可以用(yong)于實(shi)時(shi)監(jian)(jian)測和(he)(he)記(ji)錄電網運行狀態,保障電力系(xi)統的穩(wen)定(ding)運行。同時(shi),在石油化工行業(ye)中,數據(ju)轉換器可以用(yong)于實(shi)時(shi)監(jian)(jian)測和(he)(he)記(ji)錄生產過 。
在PLC系統中,常(chang)見的(de)組態(tai)軟件有以(yi)下幾種(zhong):Siemens Step 7:適用于西(xi)門子PLC系統,包(bao)括(kuo)S7-200、S7-300、S7-400等系列。Step 7提供了編程、監控和診斷功能,可用于創建和 。
雷達(da)流(liu)量(liang)(liang)計(ji)是一種用于測量(liang)(liang)流(liu)體流(liu)量(liang)(liang)的裝(zhuang)置(zhi),其(qi)安裝(zhuang)質量(liang)(liang)的好壞,直接影響測量(liang)(liang)精度和長期可靠性。為保證雷達(da)流(liu)量(liang)(liang)計(ji)的正常(chang)工作和測量(liang)(liang)精度,以(yi)下(xia)為雷達(da)流(liu)量(liang)(liang)計(ji)安裝(zhuang)的技(ji)術規范要求:安裝(zhuang)位(wei)置(zhi):1.雷達(da)流(liu)量(liang)(liang)計(ji)的安裝(zhuang)位(wei)置(zhi)應考 。
電(dian)(dian)力電(dian)(dian)容(rong)器(qi)(qi)按用(yong)途(tu)可分為:①并(bing)聯電(dian)(dian)容(rong)器(qi)(qi)。原(yuan)稱(cheng)移相電(dian)(dian)容(rong)器(qi)(qi)。主要用(yong)于補償電(dian)(dian)力系(xi)統(tong)感性(xing)負(fu)荷的無功(gong)功(gong)率,以提高(gao)功(gong)率因數,改善電(dian)(dian)壓(ya)(ya)質量(liang),降(jiang)低線路損耗(hao)。②串(chuan)聯電(dian)(dian)容(rong)器(qi)(qi)。串(chuan)聯于工(gong)頻高(gao)壓(ya)(ya)輸、配電(dian)(dian)線路中,用(yong)以補償線路的分布(bu) 。
在電(dian)(dian)動(dong)(dong)車(che)測試過程(cheng)中,考慮到車(che)輛的(de)節能和(he)環(huan)保(bao)性(xing)能是非常重要的(de)。電(dian)(dian)動(dong)(dong)車(che)作為新型(xing)的(de)交通(tong)工具,其節能和(he)環(huan)保(bao)性(xing)能是消費者(zhe)和(he)廠商(shang)都非常關注的(de)問題(ti)。因此,在電(dian)(dian)動(dong)(dong)車(che)測試過程(cheng)中,應該采(cai)取多(duo)種方法和(he)指(zhi)標來評(ping)估其節能和(he)環(huan)保(bao) 。
而(er)不需(xu)要或(huo)很少需(xu)要隨(sui)后(hou)的機械加(jia)工,故能(neng)(neng)**節約金(jin)屬(shu),降(jiang)低(di)產品成本。用粉(fen)末(mo)冶金(jin)方(fang)法(fa)制造產品時,金(jin)屬(shu)的損耗只有1-5%,而(er)用一般熔鑄方(fang)法(fa)生(sheng)(sheng)產時,金(jin)屬(shu)的損耗可能(neng)(neng)會達到80%。3、由于(yu)粉(fen)末(mo)冶金(jin)工藝在材料(liao)生(sheng)(sheng)產過 。
根據(ju)環境選(xuan)型:磁(ci)鐵磁(ci)性(xing)可(ke)能會(hui)(hui)因溫(wen)(wen)度(du)而(er)喪失。當(dang)使用溫(wen)(wen)度(du)高于常(chang)溫(wen)(wen)時(shi),磁(ci)性(xing)會(hui)(hui)減弱,而(er)當(dang)溫(wen)(wen)度(du)降低時(shi),磁(ci)性(xing)會(hui)(hui)恢復到原來的狀態。但(dan)是(shi)(shi)需要注(zhu)意的是(shi)(shi),當(dang)加熱到“居里(li)溫(wen)(wen)度(du)”時(shi),磁(ci)鐵會(hui)(hui)完全失去磁(ci)性(xing)。另外,釹磁(ci)鐵經(jing)過(guo)表面處 。
在(zai)PLC系統(tong)中(zhong),常見的組態軟件有以下幾種(zhong):Siemens Step 7:適用(yong)于西門子PLC系統(tong),包(bao)括S7-200、S7-300、S7-400等系列(lie)。Step 7提供(gong)了(le)編程、監控和(he)診斷功能,可用(yong)于創建(jian)和(he) 。
卡特配件中的油(you)水分離器(qi)需(xu)要(yao)定期檢(jian)(jian)查(cha)和維護(hu),以保(bao)證其正常(chang)運(yun)行和延長使用(yong)壽命(ming)。檢(jian)(jian)查(cha)時需(xu)要(yao)注意檢(jian)(jian)查(cha)濾芯是否(fou)需(xu)要(yao)更(geng)(geng)換(huan)(huan)、排水閥是否(fou)正常(chang)等問題(ti)(ti),如發(fa)現問題(ti)(ti)需(xu)要(yao)及時更(geng)(geng)換(huan)(huan)或修理。在使用(yong)油(you)水分離器(qi)時,需(xu)要(yao)注意遵守設備使 。
根據(ju)環境(jing)選(xuan)型:磁(ci)鐵(tie)磁(ci)性(xing)可能(neng)會(hui)(hui)(hui)因溫(wen)(wen)(wen)度而喪失。當使(shi)用溫(wen)(wen)(wen)度高于常溫(wen)(wen)(wen)時(shi),磁(ci)性(xing)會(hui)(hui)(hui)減(jian)弱,而當溫(wen)(wen)(wen)度降低時(shi),磁(ci)性(xing)會(hui)(hui)(hui)恢復到(dao)原來的狀態。但是需要注意的是,當加(jia)熱(re)到(dao)“居里溫(wen)(wen)(wen)度”時(shi),磁(ci)鐵(tie)會(hui)(hui)(hui)完全失去磁(ci)性(xing)。另外(wai),釹磁(ci)鐵(tie)經過表(biao)面處(chu) 。