Hoʻolauna

ʻO ka Papa 304 ke kila kila maʻamau "18/8"; ʻo ia ke kila kila kila i hoʻohana nui ʻia a loaʻa i nā ʻano huahana like ʻole, nā ʻano a me nā hoʻopau ma mua o nā mea ʻē aʻe. Loaʻa iā ia nā ʻano hana hoʻokumu a me ka hoʻoheheʻe maikaʻi loa. ʻO ke ʻano austenitic kaulike o ka Papa 304 e hiki ai iā ia ke huki hohonu loa me ka ʻole o ka annealing waena, ka mea i hoʻolilo i kēia papa i mea koʻikoʻi i ka hana ʻana i nā ʻāpana kila kila i huki ʻia e like me nā poho holoi, nā mea hoʻokaho a me nā ipu hao. No kēia mau noi he mea maʻamau ka hoʻohana ʻana i nā ʻano kūikawā "304DDQ" (Deep Drawing Quality). Hoʻopili koke ʻia a ʻōwili paha ka Papa 304 i nā ʻāpana like ʻole no nā noi ma nā ʻoihana ʻoihana, kuhikuhipuʻuone, a me nā kahua halihali. Loaʻa iā Papa 304 nā ʻano hoʻoheheʻe koʻikoʻi. ʻAʻole koi ʻia ka annealing post-weld i ka wā e hoʻoheheʻe ai i nā ʻāpana lahilahi.

ʻO ka papa 304L, ka mana haʻahaʻa kalapona o 304, ʻaʻole pono ka annealing post-weld a no laila ua hoʻohana nui ʻia i nā ʻāpana anakahi kaumaha (ma luna o 6mm). Loaʻa ka papa 304H me kāna ʻike kalapona kiʻekiʻe i ka hoʻohana ʻana i nā mahana kiʻekiʻe. Hāʻawi pū ka ʻano austenitic i kēia mau papa i ka paʻakikī maikaʻi loa, a hiki i nā mahana cryogenic.

Nā Waiwai Koʻikoʻi

Ua kuhikuhi ʻia kēia mau waiwai no ka huahana ʻōwili pālahalaha (pā, pepa a me ka ʻōwili) ma ASTM A240/A240M. Ua kuhikuhi ʻia nā waiwai like akā ʻaʻole pono like no nā huahana ʻē aʻe e like me ka paipu a me ke kaola ma kā lākou mau kikoʻī.

Hoʻonohonoho ʻana

Hāʻawi ʻia nā pae haku mele maʻamau no nā kila kila 304 ma ka papa 1.

Papa 1.Nā pae haku mele no ke kila kila 304

Nā Waiwai Mekanika

Hāʻawi ʻia nā waiwai mechanical maʻamau no nā kila kila 304 ma ka papa 2.

Papa 2.Nā waiwai mechanical o ke kila kila 304

Ke kū'ē ʻana i ka palaho

Maikaʻi loa i nā ʻano kaiapuni lewa like ʻole a me nā ʻano media corrosive he nui. Hiki ke hoʻopilikia ʻia e ka pitting a me ka crevice corrosion i nā kaiapuni chloride mahana, a i ka stress corrosion cracking ma luna o 60°C. Manaʻo ʻia he kūpaʻa i ka wai inu me kahi o 200mg/L chlorides ma nā mahana ambient, e hōʻemi ana i kahi o 150mg/L ma 60°C.

Ke kū'ē wela

ʻO ke kūpaʻa maikaʻi ʻana i ka oxidation i ka lawelawe intermittent a hiki i 870°C a i ka lawelawe mau a hiki i 925°C. ʻAʻole ʻōlelo ʻia ka hoʻohana mau ʻana o 304 ma ka pae 425-860°C inā he mea nui ke kūpaʻa ʻana i ka wai corrosion ma hope. ʻOi aku ka paʻa o ka papa 304L i ka carbide precipitation a hiki ke hoʻomehana ʻia i loko o ka pae mahana ma luna.

ʻOi aku ka ikaika o ka papa 304H i nā mahana kiʻekiʻe no laila hoʻohana pinepine ʻia no nā noi kūkulu a me nā noi e loaʻa ana i ke kaomi ma nā mahana ma luna o 500°C a hiki i 800°C. E lilo ʻo 304H i mea ʻino i ka pae mahana o 425-860°C; ʻaʻole kēia he pilikia no nā noi wela kiʻekiʻe, akā e hopena i ka emi ʻana o ke kūpaʻa ʻana i ka wai.

Ka Lapaʻau Wela

Lapaʻau Hoʻonā (Annealing) - E hoʻomehana i 1010-1120°C a hoʻomaʻalili koke. ʻAʻole hiki ke hoʻopaʻakikī ʻia kēia mau ʻano e ka lapaʻau wela.

Kuʻihao

ʻO ka hiki ke hoʻopili maikaʻi ʻia e nā ʻano hana hoʻopili maʻamau āpau, me nā metala hoʻopihapiha a me ka ʻole. Hoʻomaʻamaʻa mua ʻo AS 1554.6 i ka hoʻopili ʻana o 304 me ka Papa 308 a me 304L me nā koʻokoʻo a i ʻole nā ​​​​electrodes 308L (a me kā lākou mau mea like silicon kiʻekiʻe). Pono paha nā ʻāpana i hoʻopili ʻia ma ka Papa 304 i ka annealing ma hope o ka hoʻopili ʻana no ke kūpaʻa ʻana i ka pala. ʻAʻole koi ʻia kēia no ka Papa 304L. Hiki ke hoʻohana ʻia ka Papa 321 ma ke ʻano he koho ʻē aʻe i ka 304 inā koi ʻia ka hoʻopili ʻana i nā ʻāpana kaumaha a ʻaʻole hiki ke mālama ʻia ka wela ma hope o ka hoʻopili ʻana.

Nā noi

ʻO nā noi maʻamau e komo pū me:

Nā lako hana meaʻai, ʻoi aku hoʻi i ka hana pia, ka hana waiū a me ka hana waina.

Nā noho kīhini, nā poho holoi, nā ʻauwaʻa, nā lako a me nā mīkini hana

Nā panela hoʻolālā, nā alahao a me nā mea hoʻonani

Nā ipu kemika, me ka lawe ʻana

Nā Mea Hoʻololi Wela

Nā pale i ulana ʻia a i hoʻopaʻa ʻia paha no ka hana ʻeli ʻana, ka hana ʻeli ʻana i nā lua a me ka kānana wai

Nā mea paʻa i wili ʻia

Nā Punawai