Carbon Steel
He rino e ti'aturi ana ona ahuatanga miihini ki runga i te waro o te rino, karekau he huānga koranu nui e taapirihia, i etahi wa ka kiia ko te waro maamaa, te rino waro ranei.
Ko te waro waro, e kiia ana ko te waro waro, e pa ana ki nga koranu rino-wao he iti iho i te 2% waro WC.
Ko te waro waro he iti te nui o te silicon, te konupora, te whanariki me te ūkuikui hei taapiri atu ki te waro.
E ai ki te whakamahinga o te waro waro ka taea te wehewehe ki nga waahanga e toru o te waro hanganga maitai, waro taputapu maitai me te tapahi kore utu maitai hanganga, waro hanganga maitai kua wehea ki e rua momo o te maitai hanganga mo te hanga me te hanga mīhini;
E ai ki te tikanga whakarewa ka taea te wehea ki te rino oumu papatahi, te maitai kaitahuri me te rino oumu hiko;
E ai ki te tikanga deoxidation e taea te wehea ki koropupu maitai (F), sedentary maitai (Z), āhua-sedentary maitai (b) me motuhake sedentary maitai (TZ);
E ai ki te ihirangi waro o te waro maitai e taea te wehea ki iti waro maitai (WC ≤ 0.25%), waro maitai reo (WC0.25% -0.6%) me te waro maitai teitei (WC> 0.6%);
E ai ki te ūkuikui, ka taea te wehea te ihirangi whanariki o te waro maitai ki te waro waro noa (kei roto te ūkuikui, te whanariki teitei ake), te maitai waro-kounga teitei (kei roto te ūkuikui, te whanariki raro) me te maitai-kounga teitei (kei roto te ūkuikui, te whanariki raro) me maitai-kounga teitei motuhake.
Ko te teitei o te ihirangi waro i roto i te maitai waro whānui, te nui te pakeke, te teitei te kaha, engari te iti te kirihou.
Kowiri tira
Ko te rino kowiri-waikawa e kiia ana he kowiri tira, e rua nga waahanga nui: he kowiri tira me te rino waikawa-waikawa.Hei poto, ko te rino ka taea te aukati i te waikura o te hau ka kiia ko te kowiri tira, ko te rino ka taea te aukati i te waikura ma nga papaa matū ka kiia ko te rino-waikawa.Ko te kowiri tira he tira teitei-nui me te neke atu i te 60% o te rino hei matrix, me te taapiri i te chromium, nickel, molybdenum me etahi atu mea whakauru.
Ina neke atu i te 12% te chromium te rino, ko te rino i te rangi me te waimeha waikawa nitric e kore e ngawari ki te waikura me te waikura.Ko te take ka taea e te chromium te hanga i tetahi paparanga tino piri o te kiriata chromium waikura i runga i te mata o te maitai, he pai te tiaki i te maitai mai i te waikura.Ko te kowiri tira kei roto i te chromium he nui ake i te 14%, engari ko te tira kowiri karekau he waikura rawa.I nga waahi takutai, i etahi waahanga kino kino ranei o te hau, ina he nui te ihirangi katote hau hauhauota, ka kitea etahi wahi waikura o te mata o te kowiri tira e kitea ana ki te hau, engari ko enei waahi waikura he iti noa ki te mata, e kore e pakaru te kowiri tira. matrix roto.
I te nuinga o te korero, ko te nui o te chrome Wcr nui atu i te 12% o te maitai he kowiri tira, he kowiri tira e ai ki te microstructure i muri i te maimoatanga wera ka taea te wehewehe ki nga waahanga e rima: ara, he kowiri tira, he kowiri tira martensitic, he kowiri tira austenitic. maitai, austenitic – ferrite kowiri tira me te waro waro kowiri tira.
Ko te kowiri tira ka wehewehea e te whakahaere matrix:
1, kowiri tira ferritic.Kei roto 12% ki te 30% chromium.Ko te kaha o te waikura, te pakari me te pai ki te piki ake o te ihirangi chromium me te whakapai ake i te ahotea hauhautanga he pai ake i era atu momo kowiri tira.
2, austenitic kowiri tira.He nui ake i te 18% te chromium, kei roto ano te 8% nickel me te iti o te molybdenum, te titanium, te hauota me etahi atu mea.He pai te mahinga matawhānui, ka taea te ātete ki ngā momo waikura pāpāho.
3、Austenitic – ferritic matarua kowiri tira.E rua austenitic me te ferritic kowiri tira, a he nga painga o te superplasticity.
4, martensitic kowiri tira.He kaha teitei, engari he ngoikore te kirihou me te weldability.
Wā tuku: Nov-15-2023