maitai taputapue whakamahia ana hei hanga taputapu tapahi, ine, pokepokea ai me ngā taputapu ātete-kakahu. He tino pakari te maitai taputapu whānui, ā, ka taea te pupuri i te pakeke teitei, te pakeke whero, te ātete kakahu teitei me te pakari tika i te pāmahana teitei. Kei roto hoki i ngā whakaritenga motuhake ko te iti o te whakarerekētanga maimoatanga wera, te ātete ki te waikura me te pai o te miihini. E ai ki ngā hanganga matū rerekē, ka wehea te maitai taputapu ki ngā wāhanga e toru: te maitai taputapu waro, te maitai taputapu koranu, me te maitai tere-teitei (ko te nuinga o te maitai taputapu koranu teitei); e ai ki te kaupapa, ka taea te wehea ki ngā wāhanga e toru: te tapahimaitai taputapu, te maitai pokepokea ai, me te maitai ine.
Te maitai taputapu waro:
He teitei te ihirangi waro o te maitai taputapu waro, i waenga i te 0.65-1.35%. I muri i te maimoatanga wera, ka taea e te mata o te maitai taputapu waro te whiwhi i te pakeke me te pakari teitei ake, ā, he pai ake te tukatuka o te matua; he iti te pakeke o te whakamahana (kaua e neke atu i te HB207), he pai te mahi tukatuka, engari he ngoikore te pakeke whero. Ina tae te pāmahana mahi ki te 250℃, ka heke tere te pakeke me te ātete kakahu o te maitai, ā, ka heke te pakeke ki raro i te HRC60. He iti te pakeke o te maitai taputapu waro, ā, kāore e taea te whakapakeke i ngā taputapu nui ake (ko te diameter o te whakapakeketanga i roto i te wai he 15mm). He tino rerekē te pakeke o te paparanga whakapakeke o te mata me te wāhanga pokapū i te wā e tinei ana i te wai, he ngāwari ki te whakapēke, ki te hanga kapiti rānei i te wā e tinei ana. Hei tāpiri, he whaiti te awhe pāmahana tinei, ā, me tino whakahaere te pāmahana i te wā e tinei ana. Ārai i te wera nui, te tango waro me te whakarerekētanga. Kua tohua te "T" ki mua i te maitai taputapu waro hei karo i te whakapoauau ki ētahi atu maitai: ko te tau i roto i te tau maitai e tohu ana i te ihirangi waro, e whakaatuhia ana i roto i ngā mano o te ihirangi waro toharite. Hei tauira, ko te T8 e tohu ana i te ihirangi waro toharite o te 0.8%; mō te hunga he nui ake te ihirangi konupora, ka tohua te "Mn'" ki te mutunga o te tau maitai, hei tauira, "T8Mn'"; he iti iho te ihirangi whākawa me te whanariki o te maitai taputapu waro kounga teitei i te maitai taputapu waro kounga teitei whānui, ā, ka tāpirihia te reta A i muri i te tau maitai hei wehewehe.
Rino taputapu koranu
E pā ana ki te maitai kua tāpirihia ētahi huānga whakarewa hei whakapai ake i te mahi a te maitai taputapu. Ko ngā huānga whakarewa e whakamahia whānuitia ana ko te tungsten (W), te molybdenum (Mo), te chromium (Cr), te vanadium (V), te titanium (Ti), me ētahi atu. Ko te tapeke o ngā huānga whakarewa kāore e neke ake i te 5%. He nui ake te pakari, te pakari, te ātete ki te kakahu me te pakari o te maitai taputapu whakarewa i te maitai taputapu waro. E ai ki te kaupapa, ka taea te wehewehe kia toru ngā wāhanga: ngā taputapu tapahi, ngā pokepokea ai me ngā taputapu ine. Ko te putanga o te maitai pokepokea ai e 80% o te maitai taputapu whakarewa. I roto i ēnei, ko te maitai he nui te ihirangi waro (wC neke atu i te 0.80%) e whakamahia ana hei hanga taputapu tapahi, taputapu ine me ngā pokepokea ai matao. Ko te pakeke o tēnei momo maitai i muri i te tinei he nui ake i te HRC60, ā, he nui te ātete ki te kakahu; ko te maitai he waenga te ihirangi waro (wt0.35%~0.70%) e whakamahia ana hei hanga pokepokea ai wera. He iti ake te pakeke o tēnei momo maitai i muri i te tineitanga, arā, HRC50~55, engari he pakari pai.
Rino taputapu tere-teitei
He maitai taputapu koranu-teitei, e pā ana ki te maitai tere-teitei. Ko te ihirangi waro i waenga i te 0.70 me te 1.65%, ā, he teitei te rahinga o ngā huānga koranu, tae atu ki te 10-25%, tae atu ki te C, Mn, Si, Cr, V, W, Mo, me te Co. Ka taea te whakamahi hei hanga taputapu tapahi hurihuri tere-teitei, he pakeke whero teitei, he ātete pai ki te kakahu, he kaha teitei, ā, he nui te ōwehenga o te Cr, V, W, me te Mo. Ina eke te pāmahana tapahi ki te 600°C, kāore tonu te pakeke e heke nui. I te nuinga o te wā ka hangaia i roto i te oumu hiko, ā, ka whakamahia te tikanga paura whakarewa hei hanga maitai tere-teitei, kia tohatohahia ai ngā waro i runga i te matihiko i roto i ngā matūriki tino angiangi, ka taea te whakanui ake i te roa o te ratonga. Ko ngā taputapu maitai tere-teitei e 75% o te katoa o ngā taputapu hanga o te whare.
Wā tuku: Mei-16-2025