1,使用前先檢查塞規(gui)測量面,不能有銹跡.丕鋒,劃痕,黑斑等;塞規(gui)的標志應正確清楚.

　　2螺紋塞規的作用在周期檢(jian)定(ding)(ding)期內,而且附(fu)有檢(jian)定(ding)(ding)合格(ge)證或標記,或其它足(zu)以證明螺紋塞規是合格(ge)的文件.

　　3, 螺紋塞(sai)規(gui)測量(liang)(liang)的(de)標準條件(jian):溫(wen)度為20°C,測力(li)為0 .在實際使用中很難達到這一條件(jian)要求.為了減(jian)少(shao)測量(liang)(liang)誤差,盡量(liang)(liang)使用螺紋塞(sai)規(gui)與被(bei)測件(jian)在等溫(wen)條件(jian)下進(jin)行(xing)測量(liang)(liang),使用的(de)力(li)要盡量(liang)(liang)小,不(bu)允許把螺紋塞(sai)規(gui)用力(li)往孔里(li)推或(huo)一邊(bian)旋轉一邊(bian)往里(li)推.

　　4,測(ce)量時, 螺紋(wen)塞(sai)規應(ying)順著孔的軸(zhou)線插入(ru)或拔出,不能(neng)傾斜; 螺紋(wen)塞(sai)規塞(sai)入(ru)孔內,不許轉動或搖(yao)晃螺紋(wen)塞(sai)規.

　　5,不(bu)允許用螺紋塞(sai)規檢測(ce)不(bu)清潔的工(gong)件(jian)

　　普(pu)通螺(luo)(luo)(luo)(luo)(luo)(luo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)是(shi)多參數(shu)要素(su)，有(you)兩類(lei)(lei)檢(jian)(jian)測(ce)(ce)(ce)方法：綜(zong)合(he)(he)(he)檢(jian)(jian)驗(yan)(yan)(yan)和(he)單項檢(jian)(jian)驗(yan)(yan)(yan)。綜(zong)合(he)(he)(he)檢(jian)(jian)驗(yan)(yan)(yan) 是(shi)用(yong)(yong)(yong)量(liang)規對影響螺(luo)(luo)(luo)(luo)(luo)(luo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)互換性的(de)(de)(de)(de)(de)(de)幾何參數(shu)偏差的(de)(de)(de)(de)(de)(de)綜(zong)合(he)(he)(he)結果(guo)進行(xing)檢(jian)(jian)驗(yan)(yan)(yan)。其(qi)中(zhong)包括：使用(yong)(yong)(yong)普(pu)通螺(luo)(luo)(luo)(luo)(luo)(luo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)量(liang)規和(he)止(zhi)規分別對被(bei)(bei)測(ce)(ce)(ce)螺(luo)(luo)(luo)(luo)(luo)(luo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)的(de)(de)(de)(de)(de)(de)作(zuo)用(yong)(yong)(yong)中(zhong)徑(jing)(jing)(jing)(jing)(jing)(含底(di)徑(jing)(jing)(jing)(jing)(jing))和(he)單一(yi)(yi)中(zhong)徑(jing)(jing)(jing)(jing)(jing)進行(xing)檢(jian)(jian)驗(yan)(yan)(yan);使用(yong)(yong)(yong)光滑極限量(liang)規對被(bei)(bei)測(ce)(ce)(ce)螺(luo)(luo)(luo)(luo)(luo)(luo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)的(de)(de)(de)(de)(de)(de)實(shi)際(ji)頂(ding)(ding)徑(jing)(jing)(jing)(jing)(jing)進行(xing)檢(jian)(jian)驗(yan)(yan)(yan)。螺(luo)(luo)(luo)(luo)(luo)(luo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)量(liang)規又稱為螺(luo)(luo)(luo)(luo)(luo)(luo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)塞規。螺(luo)(luo)(luo)(luo)(luo)(luo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)量(liang)規通規模擬被(bei)(bei)測(ce)(ce)(ce)螺(luo)(luo)(luo)(luo)(luo)(luo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)的(de)(de)(de)(de)(de)(de)大(da)(da)實(shi)體牙(ya)(ya)型(xing)(xing)，檢(jian)(jian)驗(yan)(yan)(yan)被(bei)(bei)測(ce)(ce)(ce)螺(luo)(luo)(luo)(luo)(luo)(luo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)的(de)(de)(de)(de)(de)(de)作(zuo)用(yong)(yong)(yong)中(zhong)徑(jing)(jing)(jing)(jing)(jing)是(shi)否超過(guo)其(qi)大(da)(da)實(shi)體牙(ya)(ya)型(xing)(xing)的(de)(de)(de)(de)(de)(de)中(zhong)徑(jing)(jing)(jing)(jing)(jing)，并同時(shi)檢(jian)(jian)驗(yan)(yan)(yan)底(di)徑(jing)(jing)(jing)(jing)(jing)實(shi)際(ji)尺寸是(shi)否超過(guo)其(qi)大(da)(da)實(shi)體尺寸。檢(jian)(jian)驗(yan)(yan)(yan)方法：如(ru)果(guo)被(bei)(bei)測(ce)(ce)(ce)螺(luo)(luo)(luo)(luo)(luo)(luo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)能(neng)夠與螺(luo)(luo)(luo)(luo)(luo)(luo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)通規旋(xuan)合(he)(he)(he)通過(guo)，且(qie)與螺(luo)(luo)(luo)(luo)(luo)(luo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)止(zhi)規不(bu)(bu)完全旋(xuan)合(he)(he)(he)通過(guo)(螺(luo)(luo)(luo)(luo)(luo)(luo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)止(zhi)規只(zhi)允許與被(bei)(bei)測(ce)(ce)(ce)螺(luo)(luo)(luo)(luo)(luo)(luo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)兩段旋(xuan)合(he)(he)(he)，旋(xuan)合(he)(he)(he)量(liang)不(bu)(bu)得超過(guo)兩個螺(luo)(luo)(luo)(luo)(luo)(luo)距)， 表(biao)明被(bei)(bei)測(ce)(ce)(ce)螺(luo)(luo)(luo)(luo)(luo)(luo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)的(de)(de)(de)(de)(de)(de)作(zuo)用(yong)(yong)(yong)中(zhong)徑(jing)(jing)(jing)(jing)(jing)沒有(you)超過(guo)其(qi)大(da)(da)實(shi)體牙(ya)(ya)型(xing)(xing)的(de)(de)(de)(de)(de)(de)中(zhong)徑(jing)(jing)(jing)(jing)(jing)，且(qie)單一(yi)(yi)中(zhong)徑(jing)(jing)(jing)(jing)(jing)沒有(you)超出(chu)(chu)其(qi)小(xiao)(xiao)實(shi)體牙(ya)(ya)型(xing)(xing)的(de)(de)(de)(de)(de)(de)中(zhong)徑(jing)(jing)(jing)(jing)(jing)，那么(me) 可以(yi)保(bao)證旋(xuan)合(he)(he)(he)性和(he)連接(jie)強度(du)，則被(bei)(bei)測(ce)(ce)(ce)螺(luo)(luo)(luo)(luo)(luo)(luo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)中(zhong)徑(jing)(jing)(jing)(jing)(jing)合(he)(he)(he)格(ge)。否則不(bu)(bu)合(he)(he)(he)格(ge)。螺(luo)(luo)(luo)(luo)(luo)(luo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)中(zhong)徑(jing)(jing)(jing)(jing)(jing)說(shuo)白了， 是(shi)螺(luo)(luo)(luo)(luo)(luo)(luo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)的(de)(de)(de)(de)(de)(de)公稱直徑(jing)(jing)(jing)(jing)(jing)，即一(yi)(yi)般(ban)所說(shuo)的(de)(de)(de)(de)(de)(de)螺(luo)(luo)(luo)(luo)(luo)(luo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)“M**”里的(de)(de)(de)(de)(de)(de)*代表(biao)的(de)(de)(de)(de)(de)(de)數(shu)值(zhi)，它是(shi)一(yi)(yi)個介于(yu)大(da)(da)徑(jing)(jing)(jing)(jing)(jing)(外(wai)螺(luo)(luo)(luo)(luo)(luo)(luo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)為牙(ya)(ya)頂(ding)(ding)的(de)(de)(de)(de)(de)(de)直徑(jing)(jing)(jing)(jing)(jing)，內螺(luo)(luo)(luo)(luo)(luo)(luo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)為牙(ya)(ya)底(di)直徑(jing)(jing)(jing)(jing)(jing))和(he)小(xiao)(xiao)徑(jing)(jing)(jing)(jing)(jing)(同大(da)(da)徑(jing)(jing)(jing)(jing)(jing)含義相反)之間(jian)的(de)(de)(de)(de)(de)(de)一(yi)(yi)個直徑(jing)(jing)(jing)(jing)(jing)。大(da)(da)實(shi)體牙(ya)(ya)型(xing)(xing)，顧(gu)名思義， 是(shi)螺(luo)(luo)(luo)(luo)(luo)(luo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen)的(de)(de)(de)(de)(de)(de)牙(ya)(ya)型(xing)(xing)(別告訴(su)我你(ni)連“牙(ya)(ya)型(xing)(xing)”是(shi)什么(me)都不(bu)(bu)知道哦~)制(zhi)造(zao)(zao)出(chu)(chu)來(lai)能(neng)達到的(de)(de)(de)(de)(de)(de)大(da)(da)實(shi)體，即實(shi)際(ji)加工(gong)制(zhi)造(zao)(zao)出(chu)(chu)來(lai)的(de)(de)(de)(de)(de)(de)比理論設(she)計時(shi)，在(zai)(zai)誤差范圍(wei)能(neng)且(qie)在(zai)(zai)體積上(shang)能(neng)達到的(de)(de)(de)(de)(de)(de)大(da)(da)值(zhi)的(de)(de)(de)(de)(de)(de)狀(zhuang)態(tai)。軸類(lei)(lei)零件(jian)(外(wai)螺(luo)(luo)(luo)(luo)(luo)(luo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen))的(de)(de)(de)(de)(de)(de)大(da)(da)實(shi)體尺寸體現在(zai)(zai)直徑(jing)(jing)(jing)(jing)(jing)上(shang)， 是(shi)軸直徑(jing)(jing)(jing)(jing)(jing)大(da)(da)于(yu)設(she)計尺寸;孔(kong)累零件(jian)(內螺(luo)(luo)(luo)(luo)(luo)(luo)紋(wen)(wen)(wen)(wen)(wen)(wen)(wen)(wen))的(de)(de)(de)(de)(de)(de)大(da)(da)實(shi)體尺寸體現在(zai)(zai)直徑(jing)(jing)(jing)(jing)(jing)上(shang)， 是(shi)孔(kong)的(de)(de)(de)(de)(de)(de)直徑(jing)(jing)(jing)(jing)(jing)小(xiao)(xiao)于(yu)設(she)計尺寸。