多通道超聲波探傷儀是🥂一款多通道、分布式、模塊化的精密檢測儀器,它采用先進的集成電路技術及網絡技術,其各項性能指標均達到或超過先進水平,能夠快速、便捷、無損傷、精確地進行工件內部多種缺陷(裂紋、夾雜、氣孔等)的檢測、定位、評估和診斷。
目前,多通道(dao)超聲波探傷儀(yi)能夠廣泛地應用在制造業、鋼鐵冶金(jin)(jin)業、金(jin)(jin)屬加工業、鋼軌(gui)、鋼管、棒材(cai)、板(ban)材(cai)等需要缺(que)陷檢測和(he)質(꧂zhi)量控制的領域。
上面我們(men)初步了(le)解了(le)多(duo)通道(dao)超聲波探傷儀的(de)基礎特性(xing),下(xia)面我們(men)在來看看它的(de)具有🐟(you)調節方法和(he)使用要(yao)求。
多通道超聲波探(tan)傷(shang)儀的具體調節和使用(yong)要求:
調節方法(fa):
1、零點調(diao)節(jie):由于超聲(sheng)(sheng)波通過保護膜、耦(ou)合劑、探(tan)頭進(jin)入待測工件(jian)的(de)(de),缺陷定位時,需將這(zhe)部分聲(sheng)(sheng)程移去,才(cai)能得到超聲(sheng)(sheng)波在(zai)工件(jian)中(zhong)實(shi)際聲(sheng)(sheng)程。零點一般是(shi)通過已知聲(sheng)(sheng)程的(de)(de)試塊(kuai)(kuai)進(jin)行調(diao)節(jie),如試塊(kuai)(kuai)中(zhong)的(de)(de)圓(yuan)弧面(斜(xie)探(tanꦜ)頭)或(huo)深100mm的(de)(de)大平底(直探(tan)頭)。
2、K值(zhi)(zhi)調節:由于斜探頭探傷時(shi)不僅要(yao)ꦫ知道缺(que)(que)陷的(de)聲程,更要(yao)得出缺(que)(que)陷的(de)垂直(zhi)和水平位置,因此(ci)斜探頭還要(yao)精確(que)測定其(qi)K值(zhi)(zhi)(折射角)才(cai)能(neng)準𒉰確(que)地對缺(que)(que)陷進行(xing)定位。K值(zhi)(zhi)一(yi)般是通(tong)過對具有(you)已知深度孔(kong)的(de)試塊來調節。
3、定(ding)(ding)量(liang)調(diao)節:定(ding)(ding)量(liang)調(diao)節一般采ꦫ(cai)๊用AVG(直探頭)或DAC(斜探頭)。
使用(yong)要求:
1、檢(jian)查多通道超聲波探傷(shang)儀直流電(dian)源或充電(dia🌸n)交流電(dian)源是否符(fu)合要求。
2、新進、經過檢修或使用日久的多通道(dao)超聲波探傷儀,均需對其主要性能進行(♏xing)檢查。
3、GN電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)的充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)一般要求(qiu)(qiu)在機外進行,將充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器開關(guan)置于充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)位置,接通電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)后,“充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)”和(he)“電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)”兩只(zhi)燈均亮,若“充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)”指示(shi)燈閃動說(shuo)明GN電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)接觸不良或損壞,應予以檢查修理,充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)指示(shi)燈滅,既充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)完畢,必須(xu)立即取下GN電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)待用,并關(guan)閉電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan),充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)在15-35℃室溫(wen)進行,電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)和(he)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)時間要符合充(꧒chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)要求(qiu)(q♎iu),放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)后的GN電(dian)(dian)(dian)(dian)(dian)(dian)池(chi),不能長期(qi)保存,定期(qi)給(gei)存放(fang)較久的電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)。)