Bawo ni ipele tiidarijiClassified?
Mo ro peigbàshould be rated as grade 1 or 2 or 3 or 4 according to the requirements of pressure and mechanical properties, and then determine the inspection items according to the corresponding grade. Emi yoo tun fẹ lati mọ ni ibamu si ipin rẹ, atẹle ni a fiweranṣẹ nipasẹ Nethizen, ṣugbọn ko si boṣewa ti o baamu:
1. Awọn iṣọnPẹlu titẹ apẹrẹ kere ju 10.0mpa ati awọn iranran pẹlu awọn iwọn jiometerin ti o jọra yoo pade awọn ibeere ti kilasi II tabi loke;
2. IgbàPẹlu titẹ apẹrẹ tobi ju tabi dogba si 1.6mpa yẹ ki o pade awọn ibeere ti ite II tabi loke;
3igbàyẹ ki o pade ite III tabi awọn ibeere IV;
4. Igbàpẹlu ti o gaju tabi awọn majele alabọde pupọ atiigbàPẹlu iwọn apakan ti o tobi ju 300mm yẹ ki o pade kilasi III tabi awọn ibeere IV.