Ngā Paipa Rino Waro Whakarewahia Porowhita mō ngā Paipa Hau Māori o raro whenua – EN10219

Whakaahuatanga Poto:

Te whakauru atu i te paipa maitai waro porowhita kua whakapirihia mō ngā tono paipa hau maori o raro whenua. E tutuki ana tēnei paipa kounga teitei i ngā paerewa EN10219, ā, he maha ngā painga e tukuna ana mō ngā momo whakamahinga ahumahi me te arumoni.


Taipitopito Hua

Ngā Tohu Hua

Ko tētahi o ngā painga matua opaipa maitai waro porowhita kua whakapirihiako te kaha ki te whakaputa paipa o ngā diameter rerekē mā te whakamahi i ngā rīpene o te whānui kotahi. He tino whai hua tēnei mō ngā tono e hiahia ana ki ngā rīpene maitai whaiti hei whakaputa paipa maitai diameter nui. Mā tēnei tukanga hanga auaha ka whakarite kia pakari, kia pakari hoki ngā paipa e hangaia ana, engari kia rite tonu te kounga.

Ko ngā paipa maitai waro whakarewa porowhita he mea hanga motuhake mō te tāutanga o ngā paipa hau maori i raro i te whenua, ā, e tutuki ana i ngā whakaritenga tino pakari oEN10219. E whakamārama ana tēnei paerewa i ngā whakaritenga tuku hangarau mō ngā wāhanga hanganga tuwhera kua whakarewahia matao o ngā maitai kore-koranu me ngā maitai angiangi. Nō reira, he tino pai te paipa mō te whakamahi i roto i ngā paipa hau maori o raro whenua, ina he mea nui te ātete ki te waikura me te hanganga pai.

Āhuatanga Mīhini

kounga maitai te kaha hua iti rawa
Mpa
Te kaha o te kume Te roanga iti rawa
%
Pūngao pānga iti rawa
J
Te matotoru kua tohua
mm
Te matotoru kua tohua
mm
Te matotoru kua tohua
mm
i te pāmahana whakamātautau o
  <16 >16≤40 <3 ≥3≤40 ≤40 -20℃ 0℃ 20℃
S235JRH 235 225 360-510 360-510 24 - - 27
S275J0H 275 265 430-580 410-560 20 - 27 -
S275J2H 27 - -
S355J0H 365 345 510-680 470-630 20 - 27 -
S355J2H 27 - -
S355K2H 40 - -

Te Hanganga Matū

Te taumata maitai Momo tango-waikura a % mā te papatipu, mōrahi
Ingoa maitai Tau maitai C C Si Mn P S Nb
S235JRH 1.0039 FF 0,17 1.40 0,040 0,040 0.009
S275J0H 1.0149 FF 0,20 1.50 0,035 0,035 0,009
S275J2H 1.0138 FF 0,20 1.50 0,030 0,030
S355J0H 1.0547 FF 0,22 0,55 1,60 0,035 0,035 0,009
S355J2H 1.0576 FF 0,22 0,55 1,60 0,030 0,030
S355K2H 1.0512 FF 0,22 0,55 1,60 0,030 0,030
a. Ko te tikanga tango-waikura e whai ake nei:

FF: He maitai kua whakamatea katoatia kei roto ngā huānga here hauota i roto i ngā rahinga e ranea ana hei here i te hauota e wātea ana (hei tauira, iti rawa 0,020% Al katoa, 0,015% Al wairewa rānei).

b. Kāore e pā te uara mōrahi mō te hauota mēnā he iti rawa te ihirangi Al katoa o te hanganga matū o te 0,020 % me te ōwehenga Al/N iti rawa o te 2:1, mēnā rānei he nui ngā huānga here-N kē atu kei roto. Me tuhi ngā huānga here-N ki roto i te Tuhinga Tirotiro.

Haunga tōna āheinga ki te hanga paipa rino whānui, he maha atu anō ngā painga o ngā paipa rino waro kua whakapirihia ki te porowhita. Mā tōna hangarau whakapiri porowhita ka māeneene te mata o roto o te paipa, ka whakaitihia te hekenga pēhanga me te whakapai ake i ngā āhuatanga rere. He mea nui rawa atu tēnei i roto i ngā tono paipa hau māori, ina he mea nui te rere pai me te kore e aukatia mō te mahi tino pai.

Hei tāpiritanga, he tino ātete te paipa maitai waro kua whakapirihia ki te waikura, ā, he mea tino pai mō ngā whakaurunga o raro whenua i te wā e pāngia ai te paipa e te makuku me ngā huānga oneone. Nā tōna hanganga pakari me ngā rauemi pakari, he mea tino pai mō te whakamahinga roa i roto i ngā āhuatanga taiao uaua.

Mā te whakamahinga o te maitai waro kounga teitei ka tino pai ngā āhuatanga ā-pūkaha o ngā paipa, tae atu ki te kaha kume me te ātete pānga. Nā tēnei ka waiho hei whiringa pono mōpaipa hau māori o raro whenuangā whakaurunga, i te mea ka pāngia pea ngā paipa e ngā kawenga o waho, me ngā kino pea.

Hei whakarāpopototanga, ko ngā paipa maitai waro kua whakapirihia porowhita te mea pai rawa atu mō ngā tono paipa hau maori i raro i te whenua. Mā tana tukanga hanga auaha ka taea te whakaputa i ngā paipa maitai whānui nui mai i ngā rīpene maitai whaiti, kia mau tonu ai te kounga me te pakari. Ka tutuki te paipa i ngā whakaritenga o te paerewa EN10219, ā, he tino ātete ki te waikura, he maeneene te mata o roto, ā, he kaha ngā āhuatanga miihini, he mea pai mō te whakamahinga roa me te pono i roto i ngā whakaurunga paipa hau maori i raro i te whenua.

 


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