Mana'oga fa'apitoa mo fa'a'au'au paipa (e aofia ai fasipepa fa'ailoga ma ta'avale)

Manaoga fa'apitoa mopaipa fa'ameamea(e aofia aifa'ailogainamavaega taai).
1.Le togi ma mana'oga fa'apitoa ofa'ailoga(e aofia aifa'ailoga ma ta'avale fasipepa) e tatau ona ausia manaʻoga tutusa o le JB4726-4728.
2.Nominal pressure PN 0.25 MP 1.0 MPa carbon steel ma austenitic stainlessfa'amea uameafa'ataga le fa'aogaina o fa'ameamea tulaga Ⅰ.
3.I le faaopoopo atu i aiaiga o loʻo taua i lalo, o le mamafa o le mamafa o le PN 1.6 MPa i le 6.3 MPa faʻapipiʻi e tatau ona ogatusa ma le Ⅱ maualuga poʻo luga atu o le Ⅱ.tulaga forgings.
4.I se tasi o mea nei e tatau ona ogatusa ma le mana'oga o le Ⅲ mafa'ailoga: (1) mamafa PN acuity 10.0 MPau'u fuga;(2) chromium-molybdenumfa'amea uameafa'atasi ai ma le mamafa PN>4.0MPa;(3) ferriticfa'amea uameafaʻatasi ai ma le mamafa PN> 1.6MPa ma le vevela faʻaogaina ≤-20 ℃.

https://www.shdhforging.com/news/technical-requirements-for-pipe-flage-forgings-including-forged-and-rolled-pieces
Buttufi ma le ua, uelo mafolafola ma ua, socket uelomaauvai filoe masani ona faia e ala i le fa'againa po'ota'avale soloprocess.When uamea ipu poʻo vaega uamea e faʻaaogaina, o manaʻoga nei e tatau ona ausia:
1.O le ipu uamea e tatau ona asiasia e le ultrasonic e aunoa ma se faaletonu stratification;
2.E tatau ona tipiina i fasipepa i luga o le itu taʻavale o le uamea, ma faʻapipiʻiina i totonu o se mama e ala i le punou, ma faia le pito i luga o le uamea e fai ma faʻagogo o le mama.flanges ma ua;
3.E tatau ona fa'aogaina le fa'a'au'au fa'ato'atoa mo le fa'amama o le mama;
4.O le faʻafefeteina o le mama e tatau ona faʻaogaina le vevela faʻamaʻi ma faia le 100% X-ray poʻo le suʻesuʻeina o mea sese, ma o le X-ray faʻaletonu o le a fetaui ma le vasega II manaʻoga o le JB4730 ma le ultrasonic flaw detection e tatau ona fetaui ma le vasega I. manaoga ole JB4730.


Taimi meli: Nov-16-2020

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