Ko te mea e kiia neipaipa maitai koranuKo te tikanga o tēnei ko te tāpiri i ētahi huānga koranu i runga i te pūtake o te maitai waro, pērā i te Si, Mn, W, V, Ti, Cr, Ni, Mo, me ētahi atu, ka taea te whakapai ake i te kaha, te pakari, te pakari, te kaha whakarewa, me ētahi atu. Ka taea te whakarōpū i te maitai koranu kia rite ki te ihirangi o ngā huānga koranu, ā, i roto i te hanga ahumahi me te oranga, ka whakamahia te maitai koranu i roto i ngā ahumahi motuhake, ā, he mea noa hoki te whakarōpū kia rite ki te kaupapa.
Te whakarōpūtanga e ai ki te ihirangi o ngā huānga whakarewa
Ko te maitai whakarewa iti: ko te tapeke o te koranu he iti iho i te 5%;
Te maitai koranu waenga: ko te tapeke o te koranu he 5 ~ 10%;
Te maitai koranu teitei: ko te tapeke o te koranu he nui ake i te 10%.
Whakarōpūtanga mā te kaupapa
maitai hanganga koranu: maitai hanganga koranu iti (e mōhiotia ana ko te maitai koranu iti noa); maitai whakapūkara koranu, maitai tinei me te whakamakuku koranu, maitai puna koranu; maitai whīra pōro
Rino taputapu koranu: rino taputapu tapahi koranu (tae atu ki te rino taputapu tapahi koranu iti, te rino tere teitei); rino mate koranu (tae atu ki te rino mate makariri, te rino mate wera); rino mō ngā taputapu ine
Rino mahi motuhake: kowiri tira, rino ātete-wera, rino ātete-kakahu, me ētahi atu.
Tau maitai koranu
He maitai hanganga kaha teitei, he koranu iti
E toru ngā wāhanga o tōna ingoa waitohu: te reta pinyin Hainamana (Q) e tohu ana i te pūwāhi hua, te uara rohe hua, me te tohu tohu kounga (A, B, C, D, E). Hei tauira, ko te Q390A te tikanga he maitai hanganga kaha-teitei te koranu iti me te kaha hua σs=390N/mm2 me te tohu kounga A.
Koranu hanganga maitai
E toru ngā wāhanga o tōna ingoa waitohu: "e rua ngā mati, tekau ngā tohu huānga + ngā tau". Ko ngā mati tuatahi e rua e tohu ana i te 10,000 ngā wā o te ōrau papatipu waro toharite i roto i te maitai, ko te tohu huānga e tohu ana i ngā huānga whakarewa kei roto i te maitai, ā, ko ngā tau kei muri i te tohu huānga e tohu ana i te 100 ngā wā o te ōrau papatipu toharite o te huānga. Ina iti iho te ōrau papatipu toharite o ngā huānga whakarewa i te 1.5%, ko ngā huānga anake e tohua ana engari kāore te uara tau; ina ≥1.5% te ōrau papatipu toharite, ≥2.5%, ≥3.5%, ..., 2 me te 3 e tohua ana i muri i ngā huānga whakarewa , 4, . . . Hei tauira, ko te 40Cr he ōrau papatipu waro toharite Wc=0.4%, ā, ko te ōrau papatipu chromium toharite WCr<1.5%. Mena he maitai kounga teitei, tāpirihia te "A" ki te mutunga o te tohu. Hei tauira, ko te maitai 38CrMoAlA nō te maitai hanganga koranu kounga teitei.
Rino whāriki hurihuri
Tāpirihia te "G" (te reta tuatahi o te pinyin Hainamana o te kupu "roll") ki mua i te ingoa waitohu, ā, ko te tau i muri mai e tohu ana i te mano ngā wā o te wāhanga papatipu o te chromium, ā, kāore te wāhanga papatipu o te waro e tohua. Hei tauira, ko te maitai GCr15 he maitai whīra hurihuri me te wāhanga papatipu toharite o te chromium WCr=1.5%. Mena kei roto i te maitai whīra chromium ngā huānga whakarewa ehara i te chromium, ko te tikanga whakapuaki o ēnei huānga he rite ki te maitai hanganga whakarewa whānui. Ko ngā maitai whīra hurihuri he maitai kounga teitei katoa, engari kāore te "A" e tāpirihia i muri i te taumata.
Rino taputapu koranu
Ko te rerekētanga i waenga i te tikanga tau o tēnei momo maitai me te maitai hanganga koranu, ina <1% te Wc, ka whakamahia he mati kotahi hei tohu i te mano whakarea o te wahanga papatipu o te waro; ina ≥1% te wahanga papatipu o te waro, kāore e tohua. Hei tauira, ko te wahanga papatipu waro toharite o te maitai Cr12MoV he Wc=1.45%~1.70%, nō reira kāore e tohua; ko te wahanga papatipu toharite o te Cr he 12%, ā, ko ngā wahanga papatipu o te Mo me te V he iti iho i te 1.5%. Ko tētahi atu tauira ko te maitai 9SiCr, ko tōna Wc toharite=0.9%, ā, ko te WCr toharite he <1.5%. Heoi, he rerekē te maitai taputapu tere-teitei, ā, kāore tōna wahanga papatipu waro toharite e tohua ahakoa te nui. Nā te mea he maitai kounga teitei te maitai taputapu koranu me te maitai taputapu tere-teitei, kāore he take ki te tohu "A" i muri i tōna taumata.
Kowiri tira me te maitai ātete wera
Ko te tau kei mua i tēnei momo maitai he rite ki te mano ngā wā o te wāhanga papatipu waro. Hei tauira, ko te tikanga o te maitai 3Crl3 ko te wāhanga papatipu toharite Wc=0.3%, ā, ko te wāhanga papatipu toharite WCr=13%. Ina ≤ 0.03% te wāhanga papatipu o te waro Wc me te ≤ 0.08%, ka tohua mā te "00" me te "0" kei mua i te waitohu, pērā i te maitai 00Cr17Ni14Mo2, te maitai 0Cr19Ni9, me ētahi atu.
Wā tuku: Maehe-13-2023