Ka whakamahia e mātou ngā pihikete hei whakapai ake i tō wheako. Mā te haere tonu ki te tirotiro i tēnei pae tukutuku, e whakaae ana koe ki tā mātou whakamahinga o ngā pihikete. Ētahi atu kōrero.
Kupu WhakatakiNgā Āhuatanga MatuaTe HangangaNgā Āhuatanga Ā-ringaNgā Āhuatanga TinanaNgā Whakatakotoranga TauiraPūmanawa WhakatauriteNgā Tauira RerekēTe Ātete ki te WaikuraTe Maimoatanga WeraTe WhakarewaTe WhakaotiNgā Tono
Fe, <0.3% C, 10.5-12.5% ​​Cr, 0.3-1.0% Ni, <1.5% Mn, <1.0% Si, <0.4% P, <0.15% S, <0.03% N
Ko te maitai kore waikura taumata 3CR12 he maitai kore waikura taumata iti te utu, he mea hanga mā te whakarerekē i ngā āhuatanga o te maitai taumata 409. Ka ātete ki te waikura ngawari me te kakahu makuku. I whakawhanakehia tuatahitia e te Kamupene Kowiri tira Columbus i raro i te tohu hokohoko rēhita "3CR12". Ko ētahi atu ingoa mō tēnei taumata ko UNS S40977/S41003 me te 1.4003.
Ko ētahi atu tohu e rite ana ki ngā tohu 3CR12 ko ngā tohu ASME SA240, ngā tohu ASTM A240/A240M, me te EN 10088.2. Heoi, e kapi ana hoki te EN 10028.7 i te akomanga 1.4003, arā, he kowiri tira mō ngā take pēhanga.
Ka whakaratohia e ngā wāhanga e whai ake nei ngā āhuatanga matua o te koiri, te rau me te pereti maitai kore waikura reanga 3CR12 e ai ki te Euronorm S41003, S40977, ASTM A240/A240M me te EN 10088.2 1.4003.
He whakataurite noa iho ēnei o runga ake nei. Ko te whāinga o tēnei ripanga he whakataurite i ngā rauemi rite tonu te mahi, ā, ehara ngā whakaritenga i te ture. Ka taea te manatoko i ngā whakaritenga taketake mēnā e hiahiatia ana ngā mea ōrite.
Ka taea te whakamahi i te maitai kore waikura taumata 3CR12 i ngā mahi e kore ai e pai ngā hua o te konumohe, te maitai piauau, te maitai waro rānei nā te mea he ātete ki ngā waikawa me ngā turanga kaha, tae atu ki te pakaru i puta mai i te waikura ahotea pūhaumāota. Heoi, he rerekē ki te Taumata 304, ko te Taumata 3CR12 te mea iti rawa te ātete ki te waikura kapiti me te waikura poka i te aroaro o ngā pūhaumāota.
I raro i ngā āhuatanga taiao, kua pai ake te manawanui o te karaehe 3CR12 ki te wai me ngā pūhaumāota, nā te mea ka whakaitihia te waikura o te ihirangi pūhaumāota e ngā katote hauota me te pūhākawa. Ko tētahi o ngā ngoikoretanga matua o te karaehe 3CR12 ko te paku waikura o te mata o te rauemi ina pāngia e tētahi momo taiao. Nā konei i herea ai te rauemi ki ngā tono whakapaipai.
Ka whakaatuhia e te maitai kore waikura kounga 3CR12 te ātete ki te paru i waenga i te 600 me te 750°C i te aroaro o te hau, me waenga i te 450 me te 600°C i roto i te taiao pēhanga. Ka pakarukaru te rauemi ina roa te noho ki ngā pāmahana i waenga i te 450 me te 550°C. Heoi, kāore te rauemi e ngaro tōna ātete pānga i roto i tēnei awhe pāmahana.
Ka whakawerahia te maitai kore waikura karaehe 3CR12 i te 700 ki te 750°C, ka wehea kia 25mm ngā wāhanga, ka rumakina ia wāhanga mō te 1.5 hāora. Kātahi ka waiho kia whakamatao te rauemi. Kia tūpato kia kore ai e whakapakeke i te wā e whakamahanatia ana. Ka pāngia ngā āhuatanga miihini me te ātete waikura o tēnei karaehe e te maimoatanga tinei.
Ka taea te whakamahi i ngā tikanga whakarewa e whakamahia ana mō ngā maitai kore waikura austenitic ki ngā maitai kore waikura reanga 3CR12. Whakaarohia ngā hangarau whakauru wera iti pēnei i te GMAW (MIG) me te GTAW (TIG). I roto i te whakarewa, ko te waea whakakī reanga 309 kua whakamanahia i mua ki te AS 1554.6 te mea e pai ake ana. Heoi, ka whakamahia hoki ngā reanga waea 308L, 316L, 309Mo me te 309L i roto i te nuinga o ngā wā. Ka taea te tango i tetahi tae rerekē i roto i te hua kua whakarewahia mā te whakamahi i te hau tautoko, i ngā tikanga rānei pēnei i te horoi me te whakapūkara.
Ko te āheinga miihini o te maitai kore waikura 3CR12 he tata ki te 60% o te āheinga miihini o te maitai ngawari. He iti ake te tere whakapakeketanga o te mahi i te tere o te whakapakeketanga o ngā maitai austenitic, nō reira kāore he tikanga miihini motuhake e hiahiatia ana.
Kei te wātea ngā pepa maitai kore waikura taumata 3CR12 i roto i te momo paerewa o te whakaotinga Hot Rolled Annealed and Pickled (HRAP), ā, kei te wātea ngā koiri i roto i te momo whakaotinga 2B, 2D rānei. Ka taea hoki te whakaputa i ngā whakaotinga mangu mai i te rauemi wera hurihuri, ka waiho he mata pango kua waikurahia ki runga i te maitai. He pai te ātete ki te waikura me te iti o te waku o te whakaotinga mangu taumata 3CR12, nō reira he pai mō ngā momo whakamahinga kakahu rerekē.
Mōrena Richard, kei te harikoa ahau ki te tuku atu ki a koe tetahi rahinga o te 3Cr12. Kei a mātou ngā rauemi kei raro i te waitohu Cromgard C12. Tena koa waea mai ki ahau i te 719-597-2423. Jane Robinson.
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