Tunlai power siamchhuahnaah chuan heat-resistant steel hi hmanraw pawimawh tak tak boiler leh steam turbine te siamna atana hmanraw pawimawh ber a ni a, a hnathawh dan hian power plant himna leh economy a nghawng nghal vek a ni. Heat quality-resistant steel hian standards a tlin theih nan testing process khauh tak neih a pawimawh hle. He article hian power plant-a heat testing process-resistant steel chu chipchiar takin a rawn tarlang dawn a, hei hian a kaihhnawih practitioner-te chu a technical points an hriatthiam theih nan a pui dawn a ni.
Factory chhunga thil lutte enfiah hmasak .
Power plant emaw manufacturing plant-a i luh hmain heat-resistant steel chu a lan dan enfiah hmasak a ngai a, chutiang chuan a chung lamah crack leh inclusions ang chi defect langsar tak tak a awm loh nan. Chutih rual chuan, a chemical composition, mechanical property leh indicator dangte chuan contract emaw standard requirements emaw a tlin leh tlin loh hriat chian nan material quality certificate enfiah a ngai bawk. He link hi a hnu lama test-na atana a bulpui ber a ni a, thil dik lo a awm chuan a hnu lama thil tih emaw, thil chi hrang hrang scrapping emaw-ah tihkhawtlai a thlen thei a ni.
Chemical siam dan thlirletna .
Heat-resistant steel performance hi a chemical composition-ah a innghat nasa hle a, a bik takin alloying elements chromium, molybdenum, leh vanadium te a awm danah a innghat a ni. Laboratory-te chuan spectral analysis emaw, chemical titration emaw hmangin an thil siam chemical composition chu standard range chhungah a awm theih nan an hmang tlangpui. Entirnan, heat-resistant steel thenkhat chuan an oxidation leh corrosion resistance tihchak nan chromium content 12% aia tam an mamawh a. Composition chuan a pelh emaw, a tling tawk lo emaw a nih chuan, material chuan high-temperature environment-a hman tur thil mamawh a tlin lo thei a ni.
Mechanical property test 100 a ni.
Heat-resistant steel te hian temperature sang leh pressure sang tak environment an tuar a ngai a, chuvangin an mechanical property te hi a pawimawh hle. Test tlangpuiah chuan tensile test, impact test, leh hardness test te a tel. Tensile test hmangin tensile strength leh materials elongation te an hre thei a, impact test te erawh chuan an toughness chu temperature hniam emaw sang emaw ah an evaluate thung. Hardness test hian processing property leh wear resistance te chu a hriat theih nan a pui a ni. Heng test te hi international standards (ASTM leh ISO ang chi) angin an nei thin a, chu chuan data tehkhin leh rintlak a nih leh nih loh a enfiah thin.
Metallographic structure enfiahna .
Heat-a metallographic structure-resistant steel hian a high-temperature performance a nghawng nghal vek a ni. Metallographic microscope hmanga enfiah a nih chuan, he thil hian coarse grains leh abnormal precipitation phases ang chi harsatna a nei em tih hriat theih a ni. Entirnan, heat-resistant steel thenkhat chuan creep strength ti tha turin austenite grains tha tak tak an mamawh a. Metallographic structure hian a mamawh a tlin loh chuan, a material chu long-term high-temperature operation chhungin a hlawhchham theihna tur a awm thei a ni.
Nondestructive testing 1000 a ni.
Heat-resistant steel chhunga chhiatna a awm loh nan nondestructive testing (ultrasonic testing leh radiographic testing ang chi) hi link pawimawh tak a ni. Heng methods te hian temperature sang leh pressure sang tak hnuaia accident rang tak awm lo turin material chhunga crack leh pores te ang chi defects te chu a hmuchhuak thei a ni.
Testing kalphung khauh tak hi heat-resistant steel quality enfiahna atana pawimawh ber a ni a, power plant-te him leh nghet taka kalpui theihna atana thil pawimawh hmasa ber a ni. Scientific testing method hmang hian material failure hlauhawmna chu a tha thei ang bera tihtlem theih a ni a, power plant-te sum leh pai lama hlawkna leh himna pawh tihchangtlun theih a ni bawk.
