TP347H-stabilized elements (e like me ka titanium a i ʻole niobium) austenitic stainless steel welded pipes

ʻO TP347H ʻO ke kila kila kila he mea kila austenitic kūikawā, aia ia i ka pūʻulu kila ikaika wela, me ke kūpaʻa wela maikaʻi a me ke kūpaʻa intercrystalline corrosion. He mea kūpono loa kēia mea no ka hoʻohana ʻana i nā wela kiʻekiʻe, e like me nā paipu superheater boiler, nā paipu hoʻoheheʻe hou, nā paipu mahu, a me nā mea hoʻololi wela petrochemical. TP347H ʻO ka hana kuʻi ʻana maikaʻi o ka paipu welded stainless steel, hiki iā ia ke mālama i ka pono o ka waiwai a me ka pale ʻana i ka corrosion i ka wā o ke kaʻina hana.

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nā kikoʻī huahana

ʻO TP347H nā hiʻohiʻona o ka paipu wiliwili kila kila:

Ka ikaika wela: hiki iā ia ke mālama i nā waiwai mechanical maikaʻi i ka wela kiʻekiʻe.

Ke kū'ē i ka ʻino intercrystalline: ma ka hoʻohui ʻana i ka niobium (Nb) ma ke ʻano he stabilizer, ua pale maikaʻi ʻia ka corrosion intercrystalline.

ʻO ke kūpaʻa kino: hōʻike ia i ke kūpaʻa maikaʻi i ka alkaline, ka wai kai a me nā ʻano ʻawaʻawa like ʻole.

Welding hana: kūpono no ka welding kaʻina hana, hiki ke hōʻoia i ka maikaʻi a me ka pono o ka weld.

Ma ke ʻano o ka noi, hoʻohana nui ʻia ka TP347H stainless steel welded pipe i ka generator set, boiler superheater tube, reheater tube, steam pipe a me ka petrochemical heat exchanger a me nā mea wela kiʻekiʻe a me ke kiʻekiʻe kiʻekiʻe. Eia kekahi, kūpono ia no nā kūlana antioxidant, me kona mahana antioxidant ʻae ʻia a hiki i 750 ℃.

I ke koho ʻana a me ka hoʻohana ʻana i nā paipu welded stainless steel TP347H, hoʻokō ka mea i nā kūlana honua e pili ana, e like me ASTM A213 a me ASTM A312, e kuhikuhi ana i ka haku mele, nā waiwai mechanical a me nā koi kaʻina hana. Eia kekahi, ma muli o kāna mau hiʻohiʻona noi i ka wela kiʻekiʻe, he mea koʻikoʻi nō hoʻi ke koho ʻana i nā ʻano wili kūpono a me nā mea wili e hōʻoia i ka maikaʻi o ka weld seam a me ka lōʻihi o ka hale holoʻokoʻa.