Te Kaha o te Paipa Whakarewa Takirua i roto i ngā Mahi Ahumahi

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I te ao o ngā paipa ahumahi, ka pā nui te whiriwhiri rauemi me ngā tikanga hanga ki te mahi whānui me te roa o te pūnaha. Ko tētahi tikanga e rongonui ana mō tōna kaha me tōna pakari ko te whakamahi i ngā paipa takirua-whakapiri. Kua hangaia ēnei paipa kia tū atu ki ngā pēhanga teitei, ki ngā pāmahana tino kino me ngā āhuatanga taiao kino, ā, he mea tino pai mō ngā momo mahi ahumahi.

Tukua mai he īmēra ki a mātou

Taipitopito Hua

Ngā Tohu Hua

Ngā paipa takirua kua whakarewahiae rua ngā hononga motuhake i hangaia hei hanga i tētahi hononga kaha, pono hoki i waenga i ngā wāhanga paipa. Mā tēnei tukanga whakapiri takirua ka taea e te paipa te tu atu ki ngā ahotea me ngā taumahatanga ka pā mai pea i te wā e whakamahia ana, ā, he kōwhiringa pono tēnei mō ngā tono nui ina kore e taea te rahunga.

Ko tētahi o ngā painga matua o ngā paipa whakarewa-rua ko tōna kaha ki te whakahaere i ngā taiao pēhanga teitei. Mā te tukanga whakarewa-rua ka hangaia he hononga maeneene me te kaha i waenga i ngā wāhanga paipa, kia taea ai e rātou te tu atu i ngā pēhanga o roto me te kore e tūpono ki te turuturu, ki te pakaru rānei. Nā tēnei ka pai ai mō ngā tono pēnei i ngā paipa hinu me te hau, ina he mea nui te pono o te pūnaha paipa mō te haumaru me te whai huatanga o te mahi.

Ripanga 2 Ngā Āhuatanga Matua o te Tinana me te Matū o ngā Paipa Rino (GB/T3091-2008, GB/T9711-2011 me te API Spec 5L)
Paerewa	Te Kaupae Rino	Ngā Kaihanga Matū (%)						Āhuatanga Kume						Whakamātautau Pānga Charpy (V notch)
		c	Mn	p	s	Si	Ētahi atu	Kaha Tukunga（Mpa）		Kaha Kume (Mpa)		（L0=5.65 √ S0）Te Tere Totoro meneti （%）
		mōrahi	mōrahi	mōrahi	mōrahi	mōrahi	Ētahi atu	meneti	mōrahi	meneti	mōrahi	D ≤ 168.33mm	D ＞ 168.3mm
GB/T3091 -2008	Q215A	≤ 0.15	0.25 ＜ 1.20	0.045	0.050	0.35	Te tāpiri i te NbVTi i runga anō i te GB/T1591-94	215		335		15	> 31
	Q215B	≤ 0.15	0.25-0.55	0.045	0.045	0.035		215		335		15	> 31
	Q235A	≤ 0.22	0.30 ＜ 0.65	0.045	0.050	0.035		235		375		15	>26
	Q235B	≤ 0.20	0.30 ≤ 1.80	0.045	0.045	0.035		235		375		15	>26
	Q295A	0.16	0.80-1.50	0.045	0.045	0.55		295		390		13	>23
	Q295B	0.16	0.80-1.50	0.045	0.040	0.55		295		390		13	>23
	Q345A	0.20	1.00-1.60	0.045	0.045	0.55		345		510		13	>21
	Q345B	0.20	1.00-1.60	0.045	0.040	0.55		345		510		13	>21
GB/T9711-2011（PSL1）	L175	0.21	0.60	0.030	0.030		He kōwhiringa te tāpiri i tētahi o ngā huānga NbVTi, i tētahi huinga rānei o aua huānga	175		310		27		Ka taea te whiriwhiri i tētahi, i ētahi rānei o te taupū pakari o te kaha pānga me te horahanga kutikuti. Mō te L555, tirohia te paerewa.
	L210	0.22	0.90	0.030	0.030			210		335		25
	L245	0.26	1.20	0.030	0.030			245		415		21
	L290	0.26	1.30	0.030	0.030			290		415		21
	L320	0.26	1.40	0.030	0.030			320		435		20
	L360	0.26	1.40	0.030	0.030			360		460		19
	L390	0.26	1.40	0.030	0.030			390		390		18
	L415	0.26	1.40	0.030	0.030			415		520		17
	L450	0.26	1.45	0.030	0.030			450		535		17
	L485	0.26	1.65	0.030	0.030			485		570		16
API 5L （PSL 1）	A25	0.21	0.60	0.030	0.030		Mō te maitai taumata B, Nb+V ≤ 0.03%; mō te maitai ≥ taumata B, me tāpiri atu he Nb, he V rānei, he huinga rānei, ā, ko te Nb+V+Ti ≤ 0.15%	172		310		（L0=50.8mm）kia tatauhia kia rite ki te tātai e whai ake nei:e=1944·A0 .2/U0 .0 A:Horahanga o te tauira i roto i te mm2 U: Kaha kume iti rawa kua tohua i roto i te Mpa		Kāore e hiahiatia te kaha pānga me te horahanga kutikuti hei paearu pakari.
	A	0.22	0.90	0.030	0.030			207		331
	B	0.26	1.20	0.030	0.030			241		414
	X42	0.26	1.30	0.030	0.030			290		414
	X46	0.26	1.40	0.030	0.030			317		434
	X52	0.26	1.40	0.030	0.030			359		455
	X56	0.26	1.40	0.030	0.030			386		490
	X60	0.26	1.40	0.030	0.030			414		517
	X65	0.26	1.45	0.030	0.030			448		531
	X70	0.26	1.65	0.030	0.030			483		565

Haunga tōna kaha, ka taea hoki e te paipa whakarewa takirua te tu atu ki ngā pāmahana tino kino, ā, he pai mō ngā momo tukanga ahumahi. Ahakoa te kawe i ngā wai wera, i ngā hau rānei, te whakahaere rānei i roto i ngā taiao e rerekē ana te pāmahana, ka mau tonu te hanganga me te mahi a te paipa whakarewa takirua, kia pono ai te mahi i raro i ngā āhuatanga tino uaua.

Hei tāpiritanga, nā te pakari o ngā paipa whakarewa takirua, he mea whai hua te utu mō ngā mahi ahumahi. Nā te kaha ki te tu atu ki te pakaru, te waikura me ētahi atu momo pirau, he iti noa te tiaki me te whakakapinga e hiahiatia ana, ka whakaiti i ngā utu whakahaere katoa me te wā kore mahi.

I te nuinga o te wā, he maha ngā painga o te whakamahi i ngā paipa whakarewa takirua mō ngā mahi ahumahi, tae atu ki te kaha, te roa me te pono. Nā te kaha ki te whakahaere i ngā pēhanga teitei, ngā pāmahana tino kino me ngā āhuatanga taiao kino, he mea tino pai mō te whānuitanga o ngā ahumahi mai i te hinu me te hau ki te tukatuka matū. Nā te mea kua whakamātauhia tana mahi me te roa o te ora, he taonga nui te paipa whakarewa takirua ki tētahi pūnaha paipa ahumahi.