304 paipu kila mānoanoa me ke kila kilaʻO ka hoʻohālikelike weld ma mua a ma hope o ka mālama ʻana i ka ʻili a me ka hana ʻana e hōʻike ana: hiki i kēia ʻano ke hoʻopau i ke kala a me ke kala.

Ke hoʻokiʻekiʻe ka poʻe i ka 304 stainless steel mānoanoa-walled tube surface oxide layer of chromium oxide content, ʻo ke ʻano o ka papa oxide ma hope o ka optimization, hiki iā ʻoe ke hoʻomaikaʻi nui i ka hana corrosion o 304 stainless steel mānoanoa-walled tube surface.Ma nā ʻano hana hoʻomaʻamaʻa kemika e hoʻokō ai i ka 304 stainless steel mānoanoa-walled tube e hoʻomaikaʻi i ke kūpaʻa corrosion o ka ʻili ma nā ʻanuʻu ʻelua.Hiki ke hoʻohana ʻia ʻo 304 stainless steel mānoanoa-walled tube weld e kēia ʻano hana e hoʻomaikaʻi i kona kūpaʻa corrosion.

Ke lawa ʻole ka 304 stainless steel mānoanoa-walled corrosion resistance, hiki i ka ʻoihana lapaʻau lapaʻau ʻo Poligrat Munich ke hoʻomohala i ka ʻenehana Polinox Protec TC ke kōkua iā ʻoe e hoʻoponopono i kēia pilikia.Ua hoʻomohala kēia mīkini mīkini a me nā mea hoʻolako kemika i ka ʻenehana no ka hoʻomaikaʻi ʻana i ka nickel, molybdenum a me ka chromium austenitic alloy material, a laila e hoʻomaikaʻi ai i ka pale ʻana o ka 304 stainless steel mānoanoa-walled tube surface.Ma o ʻelua mau ʻanuʻu hiki ke hoʻonui ʻia i ka 304 stainless steel mānoanoa-walled tube surface oxide layer of corrosion resistance.

ʻO ka hana mua i ka hoʻohana ʻana i ka wai hoʻonā wai o 304 stainless steel mānoanoa-walled tube surface i mālama ʻia.E mau ana kēia hoʻomaʻamaʻa ma luna o 3 ~ 5h.I loko o kēia manawa, wehe i ka oxide papa mai ka ʻili o ka ʻāpana o ka hao, me ka hoʻohaʻahaʻa ʻana o ka hao, chromium a me ka lākiō hao i hoʻonui ʻia mai 6% a 8%, i kahi hana ikaika i ka hoʻomaikaʻi ʻana i ke kūpaʻa corrosion.

ʻO ka lua o ka ʻanuʻu e hoʻonui ai i ke ʻano o ka papa oxide ili.Hoʻomaikaʻi hou kēia i ka pale ʻana i ka corrosion o ka papa oxide surface.Hoʻopilikia i ke ʻano o ka papa oxide o ka ʻili i kahi hana wela o: e like me ke ʻano o ka alloy a me ka mālama wela o ka lattice crystal o ka mea i ka lewa ma 140℃~ 200℃i loko.