Nūhou waeʻano

He paʻakikī maʻamau ka Hydrogen induced cracking (HIC), ʻoi aku ka nui o ka ʻoihana ʻaila a me ka hoʻomaʻemaʻe ʻana i ka maʻemaʻe a me ka maikaʻi holoʻokoʻa o ke kila. ʻO ke kaʻina hana no nā kila kū'ē HIC e komo pū ana i ka de ...

ʻO ka paipu wiliwili kila kila pololei he ʻano paipu wili wili pololei me ka ʻili a i ʻole ka nui. He paipu kila ia i hana ʻia ma ka hoʻokuʻu ʻana i ke kaula kila ma o ka mold, a laila wili ʻia a i ʻole ka lima lima; ʻO kēia ʻano paipu ...

ʻO ka hoʻomaʻamaʻa ʻana i ka ʻili ʻili o ke kila kila ʻElua mau ala no ka pickling: kemika a me ka electrolytic. Hoʻohana ʻia ka pickling kemika wale no ka pale ʻana i ka corrosion o Paipu kila kilas, hiki ke wehe i ka unahi oxide, ka ʻōpala a me nā uhi kahiko. I kekahi manawa...

1. Hoʻohana nui ʻia ka ʻoihana kaʻa ʻaʻohe kila i loko o ka ʻōnaehana exhaust, ʻoi aku ka nui ma mua o 1/2 o ka nui o ka nui o ke kila kuhili ʻole, a ʻo 80% he kila kuhiliʻole ferritic. Ke kahe nei ke kinoea hoʻopau i hana ʻia e ka ʻenekini kaʻa i waho o ka...