High-temperature environment-a hman tur key material angin, metallurgical heat-resistant steel hi energy, chemical industry, aerospace leh field dang dangah hman a ni nasa hle.Its Excellent High-Temperature strength, oxidation resistance leh creep resistance te hian high-temperature equipment siamna atan duhthlanna hmasa ber a ni. Mahse, heat-resistant steel performance atan chuan operation method dik tak chu a pawimawh hle. He article hian metallurgical heat-a operating point lian ber berte a rawn tarlang dawn a ni-resistant steel chu a hmangtute’n he material hi an hman tangkai zawk theih nan a pui ang.
1. Melting leh casting process control .
Metallurgical heat-resistant steel hi arc furnace emaw induction furnace emaw-ah a hmin tlangpui a, chu chuan composition inang tlang a siam thei a ni. Smelting process chhung hian key elements carbon, chromium, leh nickel te content chu strictly control a ngai a, chutiang chuan high-temperature performance a nghawng nasa lutuk lo. Casting dawn hian coarse grains emaw thermal crack emaw lo awm tur ven nan pouring temperature leh cooling rate dik tak hman tur a ni.
2. Heat hmanga enkawlna kalpui dan tur optimization .
Heat treatment hmanga heat treatment-resistant steel hi a performance tihchangtlunna atana thil pawimawh tak a ni. Common heat treatment-ah chuan solution hmanga enkawlna, tar enkawlna leh annealing te a tel. Solution treatment hian a material plasticity leh toughness a ti tha thei a, aging treatment erawh chuan high-temperature strength a tichak thei thung. Annealing process hi internal stress tihbo nan leh processing performance tihchangtlun nan hman a ni. Heat-resistant steel grade hrang hrang hian heat treatment parameter hrang hrang a mamawh thei a, chuvangin a kalphung dik tak chu a bik takin thlan a ngai a ni.
3. Processing leh forming atana fimkhur dan tur .
Mechanical processing lai hian heat-resistant steel hian hardness leh toughness sang tak a nei a, cut harsa tak a ni bawk. Carbide hmanrua hman a tha a, hmanrua inbel tihtlem nan cutting speed pawh a remchan dan anga tihtlem a tha. Welding kan tih hian matching welding materials thlan a ngai a, welding heat input control a ngai a, chu chuan heat-affected zone performance a tihchhiat loh nan. Forging emaw rolling emaw ang chi processing siam tur chuan uniform organization neih theihna turin material recrystallization temperature range chhungah tih tur a ni.
4. Hman dan leh enkawl dan tur rawtna .
Heat-resistant steel hi hun rei tak chhung temperature sang takah hman a nih chuan oxidation leh corrosion problem te ngaihven a ngai a ni. Thil hmanrua chunglam enfiah fo la, a tul hunah coating protection hmang thin ang che. Chu bakah, thermal stress avanga a chhe thei lo turin temperature inthlak danglamna rang tak a awm loh nan. Downtime chhung hian thil awmdan rei zawk nan cooling measures tling tak siam a ngai a ni.
Metallurgical heat-resistant steel hman dan dik tak mastering hian material hman dan a ti tha thei mai bakah maintenance cost a ti tlem thei bawk. High-temperature industry hmasawnna chhunzawm zel a nih chuan heat-resistant steel hman dan tur chu a zau zawk dawn a ni.
