"Me maumahara tātou he nui ngā huānga whakarewa utu nui e hiahiatia ana mō te maitai kore waikura kore mahi-kore kia hangaia ai hei hua mahi-teitei. Kei te karanga te Ahumahi mō te tohungatanga hangarau tino pai, ngāwari, ā, mai i taku tirohanga, he maha ngā whakamahinga kāore i te whai hua te huarahi 'pai rawaka'."
Hei kaihanga, ka taea e koe te whakatakoto i tō huarahi whakakoi i runga anō i ngā whakaritenga iti rawa kua tautuhia e ngā paerewa ahumahi. Mēnā rānei, i runga i tō mōhiotanga kaha ki te ahumahi, ka taea e koe te whakarerekē i ngā whakaritenga whakahaere tūturu ki tō hua, ka nui rawa te hoahoa i whakaritea ki ngā paerewa. Heoi, me whai tohungatanga te ahumahi tukatuka matū (CPI) ki te waihanga i tētahi otinga ōhanga, pono hoki mō tētahi waeine whakahaere me noho ngāwari tonu i roto i te whāngai e tukatukahia ana e ia.
Ko tētahi tauira noa ko te DMV 304L, me te whakataurite ki te paerewa 304L (UNS S30403). Ki te whakatauritea ki ngā whakaritenga paerewa iti rawa o te ASTM, ko te ariā whakakotahitanga o te DMV 304L he 19% Cr me te 11% Ni hei whakatutuki i ngā hiahia tūturu i raro i te whakahaere." "Ko ngā taiao tino kaha i roto i te umanga CPI e karanga ana mō ngā ngongo kowiri tira tuturu, ātete ki te waikura me te pāmahana, me "ngāwari ki te whakarewa". Ko te kaha o ngā mahi horoi miihini, te whakaweto me ngā whakamātautau pono hou i puta mai, hei tauira, nā te whakaaweawe me te hanganga o ngā wāhanga tuarua i waenga i te konganuku i roto i te hanganga moroiti o ngā ngongo kowiri tira, me whai whakaaro mai i te wāhanga hoahoa."
Ngā takirua whakarewa-teitei
"E tautoko ana ngā ngongo kowiri tira takirua-whakarewa teitei i roto i te DMV 29.7 i ngā whāinga matua o te umanga urea kia mahi i roto i ngā wā tiaki e whakahaeretia pai ana, me te karo i ngā kati (nui) ohorere i roto i ngā wāhi rerekē o ngā waeine mahi. Ahakoa i roto i ngā taiao iti te hāora, he tino ātete ēnei ngongo takirua ki ētahi tikanga waikura, hei tauira, te waikura intergranular, te waikura pitting me te kapiti me te pakaru waikura ahotea. Nā te mea he tino matatau te ariā whakarewa me te maimoatanga wera e whakahaeretia ana i te wā hanga ngongo, e whakaatu ana ngā hua MST katoa i tētahi hanganga moroiti taurite mō te tono ūnga."
Te aro atu ki ngā wero uaua
"Kei te whakarato mātou i tētahi ariā kounga teitei e whakakotahi ana i ngā ariā whakarewa mohio, ngā rauemi mata e whakahaeretia pai ana, ngā tukanga whakaputa wera me te whakaoti matao pumau e whakatutuki ana i ngā ātete ā-ahu tino kikī kia tutuki ai ngā whakaritenga whakamātautau teitei rawa atu," I roto i ngā whirihoranga rerekē, pērā i ngā ngongo whakawhiti wera, ngā ngongo oumu, ngā paipa, ngā ngongo taputapu rānei, ka ātete ngā hua MST ki ngā taiao tino waikura i ngā pāmahana me ngā pēhanga teitei.
"Kei te whakapiki ake te pono o ngā ngongo nikara parakore DMV 200 me te DMV 400 i roto i ngā taputapu tango tote, ngā waeine whakatikatika hau me ngā taiao e pāngia ana ngā waeine e ngā kukū alkali-chloride, ngā monomers vinyl chloride me te maha atu." "I runga i te hoahoa hangarau e hiahiatia ana, ka mahi mātou i runga i te mātāpono ārahi - ina kitea e te kiritaki he wero, ka kite mātou i tētahi whai wāhitanga! I roto i ā mātou ngongo kowiri tira kounga teitei, takirua, nikara, nikara-parahi me te austenitic, ka tukuna e mātou he otinga ritenga mō ngā ahumahi wero maha."
He iti te tapuwae CO₂
He iti rawa te tapuwae CO₂ o ngā ngongo MST nā te nui o ngā para kounga teitei e whakamahia ana e te kamupene hei whakaputa i ana rauemi mata. Ko te porowhita te arotahi matua i roto i ana mahi katoa ki te whakaiti i ngā tukunga hau kati kōtuhi ki te iti rawa.
"Ka whakapiki ake ā mātou hua i te roa o te ora i roto i ngā taiao tino waikura, ka tukuna he kaha whakarewa pai rawa atu, ā, hei whakamutunga, he pai mō te utu katoa o te mana o te kiritaki."
Wā tuku: Hakihea-08-2023