He wāhanga miihini noa te pūtu, he maha ngā wā e whakamahia ana i ngā wāhi maha. Kei te taha o te pane me te tīwiri ngā wāhanga e rua o tētahi rōpū whakapiri, me whakamahi tahi me te nati, ko te nuinga hei whakapiri i te hononga o ngā wāhanga e rua me ngā kōhao mā roto. Tērā pea kāore koe i te mārama ki te rauemi kounga o te pūtu, mā tēnei tuhinga koe e whakaatu ki ngā rauemi pūtu, ngā mōhiotanga e pā ana ki te kounga, kia taea ai e te tini te ako ki te tautuhi i ēnei āhuatanga iti o te pūtu.
He aha ngā tohu me ngā rauemi o ngā pūtu e pā ana ki tēnā?
Ko te taumata pūtu e pā ana ki ngā pūtu, arā, te taumata 4.8, te taumata 8.8, te taumata 10.9 me ētahi atu taumata pūtu.
Ko te rauemi e pā ana ki te rauemi i hangaia ai te pūtu, pērā i te Q235, 35K, 40Cr, 45 # maitai, 35CrMo maitai, 304 maitai kowiri tira me te 316 maitai kowiri tira me ētahi atu.
He hononga motuhake te kounga o te pūtu me te rauemi, ka taea anake e te maitai ngawari te hanga pūtu kaha iti, ka taea e te maitai waro reo te hanga pūtu kaha waenga, ka taea hoki e te maitai waro teitei, te maitai koranu te hanga pūtu kaha teitei. Ko ētahi momo pūtu e tohu ana i te hanganga matū me ngā āhuatanga miihini e rite ana, engari me whakatau hoki te rauemi.
Anei te rārangi o ngā momo pūtu e whakamahia whānuitia ana hei hanga i ngā rauemi. Ko te taumata 4.8 ka taea te whakamahi i te Q235, Q195 me ētahi atu rauemi maitai ngawari. Ko te taumata 5.8 Q235 kei runga ake i ngā rauemi katoa, kāore e hiahiatia he maimoatanga wera. Ko te diameter miro taumata 8.8 he 16MM, iti iho rānei, 35# maimoatanga wera, 16mm, neke atu rānei, 45# me te maitai koranu waro iti te hanga. Ko te taumata 10.9 o te maitai koranu waro-waenga he maimoatanga wera 35Crmo 40Cr me ētahi atu.
Ka taea te wehewehe i ngā pūtu kaha-teitei mai i ngā pūtu noa mā te rauemi o ō rātou pūtu?
Ka wehea whānuitia kia rite ki te taumata kaha.
Ko te taumata mahi pūtu he 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12.9 me ētahi atu, neke atu i te 10 ngā tohu, ko te 8.8 me runga ake o ēnei he mea hanga ki te rino koranu waro-iti, ki te rino waro-waenga rānei, ā, he mea whakamahana (whakamātautau, whakamahana), e mōhiotia whānuitia ana ko ngā pūtu kaha-teitei, ko te toenga he mea mōhiotia whānuitia ko ngā pūtu noa. Ko te taumata mahi pūtu he wāhanga e rua o te hanganga matihiko, ko te uara o te kaha kume o te rauemi pūtu me te uara ōwehenga kaha piko.
Hei tauira, ko ngā pūtu taumata mahi 8.8, ko te tikanga ko:
1, ko te kaha kume ingoa o te rauemi pūtu he 800MPa te taumata;
2, ko te ōwehenga kaha tuku rauemi pūtu he 0.8;
3, ko te kaha tuku ingoa o te rauemi pūtu tae atu ki te 800 × 0.8 = 640MPa te taumata o ngā pūtu kaha-teitei e whakamahia whānuitia ana mō te taumata 8.8 me te 10.9, ko ngā pūtu noa e whakamahia whānuitia ana mō te taumata 4.8.
Wā tuku: 28 o Ākuhata-2024
