Ikhabhoni yenye yezona zinto ziphambili zentsimbi yemizi-mveliso. Ukusebenza kunye nolwakhiwo lwentsimbi kuxhomekeka kakhulu kumxholo kunye nokusasazwa kwekhabhoni kwintsimbi. Isiphumo sekhabhoni sibaluleke kakhulu kwintsimbi engagqwali. Impembelelo yekhabhoni kwisakhiwo sentsimbi engagqwali ibonakala kakhulu kwiinkalo ezimbini. Kwelinye icala, ikhabhoni yinto ezinzisa i-austenite, kwaye isiphumo sikhulu (malunga namaxesha angama-30 kune-nickel), kwelinye icala, ngenxa yobudlelwane obuphezulu bekhabhoni kunye ne-chromium. Enkulu, ene-chromium - uthotho oluntsonkothileyo lwee-carbides. Ke ngoko, ngokubhekiselele kumandla kunye nokumelana nokugqwala, indima yekhabhoni kwintsimbi engagqwali iyaphikisana.
Siqonda umthetho wale mpembelelo, singakhetha iintsimbi eziqinileyo ezinekhabhoni eyahlukileyo ngokusekelwe kwiimfuno ezahlukeneyo zokusetyenziswa.
Umzekelo, umxholo oqhelekileyo we-chromium kwiindidi ezintlanu zentsimbi ze-0Crl3~4Cr13, eyona isetyenziswa kakhulu kushishino kwaye incinci, ibekwe kwi-12~14%, oko kukuthi, izinto ezenza i-carbon kunye ne-chromium zenze i-chromium carbide ziyathathelwa ingqalelo. Injongo ephambili kukuba emva kokuba i-carbon kunye ne-chromium zidityaniswe zibe yi-chromium carbide, umxholo we-chromium kwisisombululo esiqinileyo awuyi kuba ngaphantsi komxholo we-chromium omncinci we-11.7%.
Ngokuphathelele la manqanaba entsimbi mahlanu, ngenxa yomahluko kumxholo wekhabhoni, amandla kunye nokumelana nokugqwala nazo zahlukile. Ukumelana nokugqwala kwentsimbi ye-0Cr13 ~ 2Crl3 kungcono kodwa amandla aphantsi kunentsimbi ye-3Crl3 kunye ne-4Cr13. Isetyenziswa kakhulu ekwenzeni iindawo zesakhiwo.
Ngenxa yomxholo ophezulu wekhabhoni, la manqanaba mabini entsimbi anokufumana amandla aphezulu kwaye asetyenziswa kakhulu ekwenziweni kwemithombo, iimela kunye nezinye iindawo ezifuna amandla aphezulu kunye nokumelana nokuguguleka. Umzekelo, ukuze koyiswe ukuguguleka kwe-intergranular yentsimbi engagqwali ye-18-8 chromium-nickel, umxholo wekhabhoni wentsimbi ungancitshiswa ube ngaphantsi kwe-0.03%, okanye i-element (titanium okanye niobium) ene-affinity enkulu kune-chromium kunye nekhabhoni ingongezwa ukuthintela ukuba yenze i-carbide. I-Chromium, umzekelo, xa ubunzima obuphezulu kunye nokumelana nokuguguleka zezona mfuno ziphambili, singanyusa umxholo wekhabhoni wentsimbi ngelixa sinyusa umxholo we-chromium ngokufanelekileyo, ukuze sihlangabezane neemfuno zobunzima kunye nokumelana nokuguguleka, kwaye siqwalasele ukumelana nokuguguleka okuthile, ukusetyenziswa kwemizi-mveliso njengeebheringi, izixhobo zokulinganisa kunye neeblade ezinentsimbi engagqwali ye-9Cr18 kunye ne-9Cr17MoVCo, nangona umxholo wekhabhoni uphezulu njenge-0.85 ~ 0.95%, kuba umxholo wazo we-chromium nawo unyuswa ngokufanelekileyo, ngoko ke usaqinisekisa ukumelana nokuguguleka. Kufuneka.
Ngokubanzi, umxholo wekhabhoni weentsimbi ezingenasici ezisetyenziswa ngoku kushishino uphantsi kakhulu. Uninzi lweentsimbi ezingenasici zinomxholo wekhabhoni ophakathi kwe-0.1 ukuya kwi-0.4%, kwaye iintsimbi ezimelana ne-asidi zinomxholo wekhabhoni ophakathi kwe-0.1 ukuya kwi-0.2%. Iintsimbi ezingenasici ezinomxholo wekhabhoni ongaphezulu kwe-0.4% zenza iqhezu elincinci kuphela lenani lilonke leeklasi, kuba phantsi kweemeko ezininzi zokusetyenziswa, iintsimbi ezingenasici zihlala zinokumelana nokugqwala njengenjongo yazo ephambili. Ukongeza, umxholo ophantsi wekhabhoni ukwabangelwa ziimfuno ezithile zenkqubo, ezifana nokuwelda okulula kunye nokuguqulwa kobushushu.
Ixesha lokuthumela: Sep-27-2022
