08B mekameka takirua tuku ahumahi
Ngā āhuatanga o te hua
1. Te kaha kawenga teitei me te pumau
He hoahoa aho-rua te mekameka roera aho-rua o te 08B e whakanui ana i tōna kaha ki te kawe kawenga ki te whakataurite ki ngā mekameka aho-kotahi. Ka tohatohahia e tēnei hanganga te taumaha kia ōrite ki ngā aho e rua e whakarara ana, ka whakaitihia te ahotea ki ngā wāhanga takitahi, ka whakaitihia hoki te tūponotanga o te whati. Me te nekehanga paerewa o te 12.7mm (0.5 inihi) me te kaha kume tae atu ki te 12,000N, ka taea e ia te whakahaere i ngā tono taumaha me te kore e whakararu i te pumau.
2. Ngā rauemi ātete-mau me te roa o te ora
He mea hanga ki te maitai waro kounga teitei, ka tukuna te mekameka 08B ki te maimoatanga wera pakari hei whakapakari i te pakeketanga me te roa. Ka whakaitihia e ngā roera me ngā pūwero i hangaia kia tino tika te hanga te waku i waenga i ngā wāhanga neke, kia maeneene ai te mahi ahakoa te whakamahinga tonu. Ka hua ake tēnei i te roa o te ora ratonga me te whakaiti i ngā utu tiaki, kia pai ai mō ngā taiao tere me te kawenga nui.
3. Hoahoa roera kua arotauhia
Kua arotauhia te hoahoa roera o te mekameka 08B kia tohatoha ōrite te ahotea puta noa i te mata pa katoa. Mā tēnei ka whakaitihia te pakaru o ngā wāhanga nui, ā, ka ārai i te pakaru wawe. Ka whakaitihia anō hoki e ngā pūwāhi hiri te auau whakahinuhinu, kia mau ai te mahi pono i roto i ngā āhuatanga puehu, mākū rānei.
4. He whānui te hototahitanga me te urutau
Ka piri te mekameka miro-rua 08B ki ngā paerewa o te ao (hei tauira, ANSI, ISO), kia hototahi ai ki te nuinga o ngā porotiti me ngā pūnaha ahumahi. Mā tōna hoahoa ā-pūrere ka taea te whakarite ngāwari, tae atu ki ngā roa me ngā āpitihanga ka taea te whakarerekē, kia pai ai mō ngā whitiki kawe, ngā mīhini ahuwhenua, me ngā taputapu hanga.
5. He iti te haruru me te tuku pai
Ka whakaitihia te wiri me te haruru e ngā wāhanga tino tika o te mekameka 08B i te wā e whakamahia ana, ka hangaia he taiao mahi marino ake. Ka whakaitihia e te tuku hiko whai hua te ngaronga pūngao, ka whai wāhi ki te penapena utu me te whakapai ake i te whai huatanga o te mahi.
6. He ngāwari ki te tāuta me te tiaki
I hangaia te mekameka 08B kia māmā ai te whakamahi, kia tere ai te tāutanga me te whakakapinga. He māmā noa te whakahinuhinu i ia wā, ā, mā te hoahoa ā-pūrere o te mekameka ka māmā te tirotiro me te tiaki, ka whakaiti i te wā kore mahi me ngā utu whakahaere.
Ngā Pātai Auau
P1: Me pēhea taku whiriwhiri i te roa tika mō taku mekameka miro-rua 08B?
A: Inehia te tawhiti i waenga i ngā porotiti, ka tirohia te tawhiti o te mekameka (12.7mm). Whakamahia te tātai: Te tapeke o ngā hononga = (2 × tawhiti pokapū / tawhiti) + (te maha o ngā niho porotiti / 2). Me whakaawhiwhi tonu ki te tau tata mō ngā mekameka aho-rua.
Q2: Me whakahinuhinu pinepine te mekameka 08B?
A: E taunakihia ana kia whakamahia he hinu whakahinuhinu auau i ia 50-100 hāora o te mahi, i runga i ngā āhuatanga o te taiao. Whakamahia he hinu whakahinuhinu pāmahana teitei, he hinu matotoru iti hoki mō te mahi tino pai.
P3: Ka taea e te mekameka 08B te mahi i roto i ngā taiao maku, waikura rānei?
A: He pai te mekameka paerewa 08B mō te makuku ngawari. Mō ngā taiao waikura, whakaarohia ngā momo maitai kore waikura, ngā momo whakakikoruatia ki te nikara rānei.
P4: He aha te tere mōrahi e taunakitia ana mō te mekameka 08B?
A: Ka taea e te mekameka 08B te mahi pai i ngā tere tae atu ki te 15 m/s (492 ft/s), i runga i te kawenga me te hinu whakahinuhinu. Me tirotiro tonu ngā whakaritenga a te kaihanga mō ngā tono tere-tiketike.
Q5: Me pēhea taku mōhio āhea me whakakapi taku mekameka 08B?
A: Whakakapia te mekameka mēnā kua neke atu i te 3% o tōna roa taketake te roa, mēnā rānei kei te kitea te pakaru, te ngatata, te waikura rānei. Mā ngā tirotiro auau ka ārai i ngā pakaru ohorere.
