Pakeke Steel - hangarau tawhito mō ngā rauemi matatau

Mai i te wā i whakamahia iwi tukuiho te tukanga o te pakeke o te whakarewa i i hiahiatia i roto i tona ora rā. Ahakoa te mea patu matao taputapu ranei mo te mahi ahuwhenua - tono kaha tiketike katoa. Na reira, iwi kua riro e tika ana i roto i te taua tenenga tukanga, i roto i nei ki te whakarewa hei to me uaua, me tona plasticity i tenei iti. Na i kitea te tukatuka o ngā hua whakarewa te ara. Pakeke o te maitai - pera ko tona ingoa. Ki te whiwhi i te mau huru e tika ana o te whakarewa te whakamamaetia he whakawera tukanga pakeke me te tautauā muri.

A, no te reira ko he kowiri tira, i reira ko te hiahia ki te whakapai ake i te tikanga, me te tikanga e ai te whakarewa tukinotia. Heat maimoatanga ka i anga ki te whakawhanake i roto i ngā huarahi hou, na tenei ra pakeke maitai (kowiri), ka taea te hanga o ngā rauemi hou o te kounga teitei.

Martensitic he kowiri tira ko te ahua o te maitai, te tikanga kei te i whakamahia tukanga pakeke. Ko tōna āhua noa - nui haere pakeke, engari e rere ke te reira i roto i taua he e pängia ana ki te ahua o te fragility. faarahi Taupānga o te maimoatanga wera ki tuku tere te whakarea pokey e faaite tenei momo o te parahi rite tetahi o nga konganuku tino rongonui.

Mahi ki ngā whare tira ko nga momo e whai ake nei o te tinei - te reira i te tirohanga ao, ka whakawerahia te hua kei te ata, a ka rohe, i reira e hāngai he whakapakeketanga o nga wāhanga e kua hiahiatia. I roto i te tua, he tukanga, pērā i pakeke maitai, ngā tikanga tautauā. Tei te reira i runga i te mea waitohu i roto i te kowiri tira. Te nuinga hoki enei take e whakamahia hinu me tai alkali. Water rite te reo meangiti te uaua whakamahia.

I runga anō i te aha te huru o te puka hua, me te he pane whakarewa ki reira, ka tono huarahi rerekē o tempering maitai. Wehewehe taahiraa isothermal pakeke me te tempering ki whaiaro tempering-.

Ko te tawhā matua o te tukanga ko te wera (pāmahana) me te meangiti (auau). Ano, te tere ki i te matao o te parahi i te wera ki te pāmahana e hiahiatia ana, ka pā te hua o tinei iho. Ko te wero hangarau matua o te tukanga ko te kōwhiringa o te pāmahana tino arotau i roto i te tirohanga o te meka e i roto i te take o te pukā, kia ngaro tira pūwaro, reira whakaiti tona kaha. I roto i te tikanga ki te karo te ahotea wäriu i roto i te hanganga ā-o ngā hua whakarewa whakapakeke, ki te tono atu tikanga tukatuka aunoa. Hei tauira, tautauā āta, ai e kia āta te heke te pāmahana. He pai mō te tempering te hanga o billets, e kua hangaia ki te whakaputa i taimaha-ohipa taputapu tenei tikanga.

He he ano hoki te mata pakeke maitai. e kore e tangohia e te reira i te rota o te wā i roto i te rerekē ki te matū me te tukatuka waiariki e taea ai e koe whakaaunoa te tukanga. Ki tenei tikanga o te raveraa i te tukanga pakeke ka rapua e te hanga o tona pūpoapoa, me te kōwhiringa o ratou talena maimoatanga mō ia wāhanga takitahi. Mata pakeke he e tika ana mō te hanga o ngā wāhanga o te momo kotahi (production papatipu), hei tauira, i roto i te ahumahi automotive.

Ko te kupu, ki te whakatutuki i te kounga teitei whakarewa o e pai ai te huinga o te kaha, taikaha me te kōngohe i roto i te hanganga e hiahiatia ana ki te kia tono ki te tukanga hua whakarewa ahurei i huaina "tempering maitai". Ahakoa kowiri tira ko tetahi o te pai rauemi hou, Heoi, ko te hangarau e taea ki te whakapai ake i tona kounga kua tae mai, ki a matou i nga wa onamata.