Te mahi a te karāhe kua whakapakeketia:
He momo rauemi pakarukaru te karāhe mānu, he iti rawa te kaha kume. He nui te pānga o te hanganga o te mata ki tōna kaha. He maeneene te āhua o te mata karāhe, engari he maha ngā kapiti moroiti. I raro i te taumahatanga o te CT, i te tīmatanga ka whānui ngā kapiti, kātahi ka tīmata te pakaru mai i te mata. Nō reira, ki te taea te whakakore i ngā pānga o ēnei kapiti moroiti o te mata, ka taea te whakanui ake i te kaha kume. Ko te whakamahana tētahi o ngā huarahi hei whakakore i ngā pānga o ngā kapiti moroiti ki te mata, ka waiho te mata karāhe ki raro i te CT kaha. Mā tēnei, ina nui ake te taumahatanga kume i te CT i raro i te awe o waho, e kore e pakaru ngāwari te karāhe.
E whā ngā rerekētanga matua i waenga i te karāhe whakamahana wera me te karāhe haurua-whakamahana:
Te tūnga o te kongakonga:
Āheakarāhe whakamahana weraKi te pakaru, ka pakaru te karāhe katoa ki tētahi āhua iti, he koki-pūngoi, ā, kāore e iti iho i te 40 ngā karāhe pakaru i roto i te whānuitanga 50x50mm, kia kore ai te tinana tangata e whara kino ina pā ki te karāhe pakaru. Ā, i te pakaru o te karāhe haurua-whakamātotoru, ka tīmata te pakaru o te karāhe katoa mai i te pūwāhi kaha ki te taha; he āhua koki irahiko me te koi, he rite te āhua kikarāhe matū kua whakapakeketia, ka taea e tēnei te whakararuraru nui i te tinana o te tangata.
Kaha Kume:
E whā ngā wā ka kaha ake te karāhe whakamahana wera i te karāhe kāore i whakamahanatia me te ahotea pēhi ≥90MPa, ā, e rua ngā wā ka kaha ake te karāhe haurua-whakamahanatia i te karāhe kāore i whakamahanatia me te ahotea pēhi 24-60MPa.
Te pumau o te wera:
Ka taea te tuku tika i te karāhe whakamahana wera ki roto i te wai hukapapa 0°C mai i te 200°C me te kore e pakaru, ko te karāhe haurua-whakamahana ia ka taea te tu atu i te 100°C anake, ka huri ohorere mai i tēnei pāmahana ki te wai hukapapa 0°C me te kore e pakaru.
Te āheinga tukatuka anō:
Kāore hoki e taea te tukatuka anō i te karāhe whakamahana wera me te karāhe haurua-whakamahana, ka pakaru ngā karāhe e rua ina tukatukahia anō.
Saida GlassHe tohunga ia mō ngā mahi karāhe tuarua tekau tau i roto i te Rohe o te Tonga o Haina, he tohunga ki ngā karāhe whakamaroke ritenga mō ngā mata pa/rama/kāinga atamai me ētahi atu tono. Mēnā he pātai āu, waea mai INĀIANEI!
Wā tuku: Hakihea-30-2020