Ngā Pūrongo - Me pēhea te whiriwhiri i te maitai o te awa U hei hoko me te whakamahi?

Whakamāramahia te Kaupapa me ngā Whakaritenga

I te wā e whiriwhiri anamaitai U-hongere, ko te mahi tuatahi he whakamārama i tōna whakamahinga motuhake me ngā whakaritenga matua:

Kei roto i tēnei ko te tatau tika, te aromatawai rānei i te kawenga mōrahi e hiahiatia ana e ia (kawenga pūmau, kawenga hihiri, pānga, me ētahi atu), e whakatau tika ana i ngā whakatakotoranga me ngā ine (te teitei, te whānui o te waewae, te matotoru o te hope) me te kaha o te rauemi; te mārama ki ngā āhuatanga tono (pēnei i ngā kurupae/purlin hanganga whare, ngā anga miihini, ngā tautoko raina kawe, ngā whata, ngā whakapaipai rānei), he rerekē ngā arotahi ki te kaha, te pakari, te tika me te āhua o ngā āhuatanga rerekē; te whakaaro ki te taiao whakamahinga (roto/waho, ahakoa he makuku, he mea waikura), e whakatau ana i ngā whakaritenga ārai-waikura (pēnei i te whakapūmau wera, te peita) me te mea rānei e hiahiatia ana te maitai/te maitai kore waikura; te whakamārama i te tikanga hononga (te whakarewa, te whakapiri rānei), ka pā ki te hoahoa o te waewae (e hiahiatia ana he mata whakarewa papatahi, he kōhao rānei kua rāhuitia) me ngā whakaritenga mō te kaha whakarewa rauemi; i te wa ano, me whakaū i ngā here rahi o te wāhi tāutanga (te roa, te teitei, te whānui) me ngā ture motuhake, ngā paerewa ahumahi rānei me tutuki e te kaupapa kia tutuki ai ngā rauemi kua tohua i ngā whakaritenga haumaru me ngā whakaritenga mahi katoa.

Ngā Whakatakotoranga, Ngā Ahu me Ngā Rauemi o te U Channel Steel

1. Ngā Whakatakotoranga
Paerewa PākehāHongere UPNKo ngā ingoa o ngā tauira i ahu mai i te teitei o ō rātou hope (waeine: mm). He āhua U te āhua o te wāhanga whakawhiti o ēnei tauira, ā, ko ngā tawhā matua ko:

Teitei o te hope (H): Ko te teitei whānui o te awa. Hei tauira, ko te teitei o te hope o UPN240 he 240 mm.

Whānui o te whitiki (B): Ko te whānui o te flange. Hei tauira, he 85 mm te whitiki o te UPN240.

Te matotoru o te hope (d): Ko te matotoru o te whatu. Hei tauira, ko te matotoru o te hope o te UPN240 he 9.5 mm.

Te matotoru o te whitiki (t): Ko te matotoru o te flange. Hei tauira, ko te matotoru o te whitiki o te UPN240 he 13 mm.

Taumaha ariā mō ia mita: Te taumaha mō ia wae roa (kg/m). Hei tauira, ko te taumaha o te UPN240 he 33.2 kg/m.

Ngā Whakatakotoranga Noa (Tauira Wāhanga):

tauira	Teitei o te hope (mm)	Whānui o te waewae (mm)	Matotoru o te hope (mm)	Te matotoru o te waewae (mm)	Taumaha ariā mō ia mita (kg/m)
UPN80	80	45	6	8	8.64
UPN100	100	50	6	8.5	10.6
UPN120	120	55	7	9	13.4
UPN200	200	75	8.5	11.5	25.3
UPN240	240	85	9.5	13	33.2
UPN300	300	100	10	16	46.2
UPN350	350	100	14	16	60.5

2. Momo rauemi
Me tutuki te rauemi maitai hongere UPN i te paerewa Pākehā EN 10025-2. Ko ngā kōwhiringa noa ko:
(1) Ngā rauemi noa
S235JR: Kaha whakaputa ≥ 235MPa, utu iti, he pai mō ngā hanganga pūmau (pērā i ngā tautoko māmā).
S275JR: Kaha whakaputa ≥ 275MPa, kaha taurite me te ōhanga, e whakamahia ana mō ngā anga hanga whānui.
S355JR: Kaha whakaputa ≥ 355MPa, te whiringa tuatahi mō te kawenga nui, he pai mō ngā āhuatanga ahotea nui pēnei i te mīhini tauranga me ngā tautoko piriti. Ko tōna kaha kume ka eke ki te 470~630MPa, ā, he pakari pāmahana iti pai.
(2) Ngā rauemi motuhake
Rino kaha-teitei: pērā i te S420/S460, e whakamahia ana mō ngā taputapu mana karihi me ngā turanga mīhini taumaha rawa (pērā i te UPN350).
Rino ātete huarere: pērā i te S355J0W, ātete ki te waikura o te hau, he pai mō ngā piriti o waho.
Kowiri tira: e whakamahia ana i roto i ngā taiao waikura pēnei i te matū me te moana, engari he nui ake te utu.

(3) Te maimoatanga mata

Pango wera-pōkai: he mata taunoa, me whai maimoatanga ārai-waikura i muri mai.

Te whakapūmau wera-tō: te paparanga whakapūmau ≥ 60μm (pērā i te maitai hongere mō ngā tautoko taiwhanga paipa), ka whakapai ake i te ātete ki te waikura.

3. Ngā tūtohutanga kōwhiringa

Ngā āhuatanga taumaha-rahi (pērā i ngā reera kerēni tauranga): Whakaritea ngā rauemi UPN300~UPN350 + S355JR hei whakarite i te ātete ki te piko me te kutikuti.

Taiao waikura: Whakakotahitia ki te whakapūkara wera-tuku, whakamahia rānei he maitai ārai huarere.

Ngā whakaritenga mō te mama: Raupapa UPN80~UPN120 (taumaha mita 8.6~13.4kg/m), he pai mō ngā kīra pakitara ārai me ngā tautoko paipa.

Kia mōhio: I te wā e hoko ana, me manatoko te pūrongo rauemi (e ai ki te EN 10025-2) me te manawanui ā-ahu (EN 10060) kia mōhio ai koe kei te tutuki te kaupapa.

Te Taunakitanga a te Kaihanga Hongere U Pono - Royal Group

At Rōpū Kingi, he hoa matua mātou i roto i te rāngai hokohoko rauemi whakarewa ahumahi o Tianjin. Nā te ngaiotanga me te whakapau kaha ki te whakatairanga i te kounga, kua whakatū pakari mātou i a mātou anō ehara i te mea i roto i te maitai āhua-U anake, engari i roto hoki i ā mātou hua katoa.

Ka tirotirohia te kounga o ia hua e tukuna ana e Royal Group kia tino tutuki ai, kia hipa atu rānei i ngā paerewa kounga teitei. Mā tēnei ka taea e mātou te whakarato i ngā hua pono, haumaru hoki ki ō mātou kiritaki, e tika ana mō ngā momo mahi.

E mārama ana mātou he mea nui te wā mō ā mātou kiritaki, nō reira, kei te rite tonu ā mātou kaimahi me ā mātou waka ki te tuku taonga. Mā te whakarite i te tere me te wā tika, ka āwhina mātou i ā mātou kiritaki ki te penapena wā me te whakapai ake i ā rātou tukanga hanga.

Ehara i te mea ko te whakapono ki te kounga me te uara o ngā hua anake te mea e kawea mai ana e te Royal Group, engari e whakaatu ana hoki i te pono i roto i ā mātou whanaungatanga ki ngā kiritaki. Ehara i te mea ko ngā momo maitai āhua-U anake ā mātou e tuku ana, engari he whānuitanga hoki o ngā hua kē atu, pērā i te maitai āhua-H, te maitai āhua-I, me te maitai āhua-C, hei whakatutuki i ngā hiahia kanorau o ngā kiritaki puta noa i te motu.

Ka tirotirohia ia ota ka tukuna ki a Royal Group i mua i te utu. Kei ngā kaihoko te mana ki te tirotiro i ā rātou hua i mua i te utu kia pai ai te makona me te kounga o te hua.