Auahatanga Rauemi: Tātari Mahi o ngā Āpiti Kowiri tira i roto i ngā Taiao Waikura

Ngā Taipitopito Matua o te Hua:

• Te Hanganga o te Koranu:Ngā rauemi matua mō te kowiri tira ngā āputa he maitai kore waikura 304, 316 rānei. Kei roto i te mea tuatahi he 18% te chromium me te 8% te nickel, he pai mō ngā taiao kūpapa; ko te mea tuarua he 2-3% te molybdenum, e whakarei ake ana i te ātete ki te waikura o te katote chloride.

• Ngā Āhuatanga Ā-ringa:E ai ki te paerewa ASTM A182, ka taea e te kaha kume o ngā flanges kowiri tira te eke ki te 500-600 MPa, he nui ake i te 400 MPa o maitai waro. E whakaatu ana te tūtohi rārangi e whai ake nei i te whakatairite i te kaha kume o ngā rauemi flange noa (wae: MPa), e whakaatu ana i te mahi taurite o te maitai kore waikura.

• Ngā Tikanga Hononga:Ka tautokohia e ngā flange kowiri tira ngā momo hononga rerekē pērā i te whakarewa me te whakapiri, kia mau ai te pai o te hiri.

• Ngā Momo Rauemi Motuhake:Kei roto hoki i tēnei kāwai ngā maitai kowiri tira Duplex me Super Duplex, e tino pai ana te mahi i roto i ngā taiao nui-hauora, e ātete ana ki te pakaru me te pakaru waikura ahotea.

• Tikanga Ātete Waikura:Ko te ātete ki te waikura o te maitai kore waikura i ahu mai i te paparanga waikura chromium e hanga ana i runga i te mata. Ka whakatikahia e tēnei paparanga ia ia anō, ka whakarato i te tiakitanga mō te wā roa.

• Te Mahi i roto i ngā Taiao Waikawa:He pai te ātete o te maitai kore waikura ki te nuinga o ngā waikawa, i runga i te kukū me te momo. Hei tauira, i roto i te waikawa whanariki kukū, ka taea e te tere waikura te iti iho i te maikiromita ia tau.

• Te tukatuka:I te wā e hangaia ana, ka tukuna ngā flange kowiri tira ki te wera hei whakapai ake i te hanganga karaihe me te whakapakari i te pakari. I muri i te whakarewanga, ka whakamātaohia, ka whakakorengia hoki hei whakarei ake i te paparanga mata tiaki.

E whakataurite ana te tūtohi rārangi e whai ake nei i te kaha kume (waeine: MPa) o te flange ngā rauemi, e whakaatu ana i te mahi taurite o te maitai kore waikura:

E whakaatu ana ngā raraunga o te pikitia he 515 MPa te kaha o te maitai kore waikura, ā, ko te tere whakarerekētanga o te hanga he 0.2% noa iho i raro i te pāmahana me te pēhanga teitei, ko te PVC ia, he 50 MPa anake te kaha, e tika ana mō ngā āhuatanga pēhanga iti.

E whakaatu ana ngā raraunga whakamātautau i roto i te taiao rehu tote, ko te tere waikura o ngā flanges kowiri tira he 0.01 mm/tau noa iho, he 10 ngā wā iti iho i te tere 0.1 mm/tau o te maitai waro, ka hua ake he tekau ngā wā roa ake o te roa o te mahi. Ina koa:

• 304 Kowiri tira​ka taea te tu atu i ngā taiao he nui te kukū o te katote pūhaumāota tae atu ki te 200 PPM.

• 316 Kowiri tira​he nui ake anō te ātete, ka whakaiti nui i ngā reiti rahunga e pā ana ki te waikura i roto i te hangarau moana.

I roto i ngā mahi pēnei i ngā tipu waikawa whanariki, he pai tonu te ātete o te maitai kore waikura ahakoa i ngā pāmahana teitei o te 200°C. Hei tāpiri, i roto i te umanga rongoā, me whai mata teitei ngā flange maitai kore waikura, i raro iho i te Ra 0.8μm, hei ārai i te tipu o ngā huakita.

Pepa Raraunga Mahi Rauemi

I runga i ngā raraunga i whakaratohia, kua noho ko ngā flange maitai kore waikura hei whiringa pai rawa atu i roto i ngā taiao waikura, ā, e akiaki ana i te tipu o te hea mākete. E whakaatu ana ngā rangahau take mahi i tōna whai huatanga:

• I roto i tētahi wheketere matū, i whakaroahia te roa o te ora mahi o ngā taputapu mā te 5–10 tauWhai muri i te whakamahi i ngā flange kowiri tira 316, kua tino heke ngā utu tiaki.

• I runga i tētahi papa keri moana, te whakamahinga o kowiri tira takiruai hua ake he 30% te whakahekengai roto i ngā pakaru e pā ana ki te waikura.

E whakaatu ana te hoahoa e whai ake nei i ēnei painga:

Hei whakarato i tētahi whakaahua taipitopito ake o te hanganga ā-roto me ngā paparanga rauemi o te flange maitai kore waikura, e whakaatu ana te hoahoa hua tāpiri e whai ake nei i tōna hanganga koranu me te maimoatanga mata:

Ko te whanaketanga ā muri ake nei o ngā flange kowiri tira ko te hangarau nano-paninga hei whakarei ake i te ātete ki te waikura, me te whakamahi i ngā rauemi hangarua i roto i te ahumahi tauwhiro hei whakaiti i te pānga ki te taiao.