Kuhili ʻole 304 1.4301

ʻO ke kila kila 304 a me ke kila kila 304L ʻike ʻia ʻo 1.4301 a me 1.4307. 'O ke 'ano 304 ka kila kila maika'i loa a ho'ohana nui 'ia. Ua kapa ʻia ʻo ia i kekahi manawa e kona inoa kahiko ʻo 18/8 i loaʻa mai ka haku inoa o ke ʻano 304 he 18% chromium a me 8% nickel. ʻO ke kila kila kila ʻano 304 kahi māka austenitic hiki ke huki hohonu loa. Ua loaʻa kēia waiwai i ka 304 ʻo ia ka papa koʻikoʻi i hoʻohana ʻia i nā noi e like me nā poho a me nā ipu. ʻO Type 304L ka mana kalapona haʻahaʻa o 304. Hoʻohana ʻia ia i nā ʻāpana ana kaumaha no ka hoʻomaikaʻi ʻana i ka weldability. Hiki ke loaʻa kekahi mau huahana e like me nā pā a me nā paipu ma ke ʻano he mea "hōʻoia ʻelua" i kūpono i nā koina no 304 a me 304L. 304H, kahi ʻano ʻano kalapona kiʻekiʻe, loaʻa nō hoʻi no ka hoʻohana ʻana i nā wela kiʻekiʻe. ʻO nā waiwai i hāʻawi ʻia ma kēia pepa ʻikepili he mea maʻamau no nā huahana palahalaha i uhi ʻia e ASTM A240/A240M. He kūpono ke manaʻo e like nā kikoʻī o kēia mau maʻamau akā ʻaʻole like me nā mea i hāʻawi ʻia ma kēia pepa ʻikepili.

Palapala noi

• Nā ipu
• ʻO nā pūnāwai, nā wili, nā nati a me nā kī
• Piʻo a paʻi kua
• Pākuʻi hoʻolālā
• Paipu
• ʻO ka Brewery, ka meaʻai, ka waiu a me nā lako hana lāʻau
• Nā lako hoʻomaʻemaʻe a me nā pā

Nā Palapala Hoʻolako ʻia

• Pepa
• Kaʻi
• Bar
• Pāpā
• Paipu
• Paipu
• Coil
• Nā lako

Koho Alloy

ʻO ke kila kila kila 1.4301/304 pili pū me: S30400, 304S15, 304S16, 304S31 a me EN58E.

Pale ʻino

Loaʻa iā 304 ke kūpaʻa ʻino maikaʻi loa i nā kaiapuni o Mei a i ka wā e launa pū ai me nā media corrosive ʻē aʻe. Hiki ke ʻino ʻia ka lua a me ka ʻāʻī ma nā wahi i loaʻa nā chlorides. Hiki ke piʻi ka pohā ʻino ma luna o 60°C.

Kū'ē wela

304 he kū'ē maikaʻi i ka oxidation i ka lawelawe intermittent a hiki i 870 ° C a ma ka lawelawe mau ʻana i 925 ° C. Eia naʻe, ʻaʻole ʻōlelo ʻia ka hoʻohana mau ʻana ma 425-860°C. Ma kēia laʻana, ʻōlelo ʻia ʻo 304L ma muli o kona kū ʻana i ka ua carbide. Ma kahi e koi ʻia ai ka ikaika kiʻekiʻe ma nā mahana ma luna o 500°C a hiki i ka 800°C grade 304H e ʻōlelo ʻia. E hoʻopaʻa ʻia kēia mea waiwai i ke kūpaʻa wai.

Hana ʻia

Pono e hana ʻia ka hana ʻana i nā mea kila kila me nā mea hana i hoʻolaʻa ʻia i nā mea kila kila. Pono e hoʻomaʻemaʻe maikaʻi ʻia nā mea hana a me nā papa hana ma mua o ka hoʻohana ʻana. Pono kēia mau kaʻina no ka pale ʻana i ka hoʻohaumia ʻana o ke kila kila e nā metala maʻalahi i hiki ke hoʻokaʻawale i ka ʻili o ka huahana i hana ʻia.

Hana anu

304 hikiwawe ke hana paakiki. Pono paha nā ʻano hana e pili ana i ka hana anu i kahi pae annealing waena e hōʻoluʻolu i ka paʻakikī o ka hana a pale i ka haehae ʻana a i ʻole ka haki ʻana. I ka pau ʻana o ka hana ʻana, pono e hoʻohana ʻia kahi hana annealing piha e hōʻemi i nā koʻikoʻi kūloko a hoʻopaʻa i ka pale ʻana i ka corrosion.

Hana Wela

ʻO nā ʻano hana e like me ka forging, e pili ana i ka hana wela ma hope o ka hoʻomehana ʻana i ka 1149-1260 ° C. A laila pono e hoʻomaʻalili koke ʻia nā mea i hana ʻia e hōʻoia i ka pale ʻana i ka corrosion.

Mīkini

Loaʻa iā 304 ka machinability maikaʻi. Hiki ke hoʻonui ʻia ka mīkini ma ka hoʻohana ʻana i kēia mau lula: Pono e mālama ʻia nā ʻoki ʻoki. ʻO nā ʻaoʻao polū ke kumu o ka paʻakikī o ka hana. Pono nā ʻokiʻoki i māmā akā lawa ka hohonu e pale ai i ka paʻakikī o ka hana ma ka holo ʻana ma luna o ka ʻili o ka mea. Pono e hoʻohana ʻia nā mea wāwahi chip e kōkua i ka hōʻoia ʻana e ʻike ʻole ʻia ka swarf i ka hana. ʻO ka haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa o ka austenitic alloys ka hopena i ka wela ma nā kihi ʻoki. ʻO ia ke ʻano he mea pono nā mea hoʻoluʻu a me nā lubricants a pono e hoʻohana ʻia i ka nui.

Hoʻomaʻamaʻa Wela

ʻAʻole hiki ke paʻakikī ke kila kila 304 e ka mālama wela. Hiki ke hana ʻia ka hoʻoponopono ʻana a i ʻole ka annealing ma ka hoʻolili wikiwiki ʻana ma hope o ka hoʻomehana ʻana i 1010-1120°C.

Weldability

ʻOi aku ka maikaʻi o ka hana kuʻi ʻana o Fusion no ke kila kila kila ʻano 304 me nā mea hoʻopiha ʻole. Manaʻo ʻia nā lāʻau hoʻopiha a me nā electrodes no ke kila kila 304 ka pae 308 kila kila. No 304L ka mea hoʻopiha i ʻōlelo ʻia he 308L. Pono paha nā ʻāpana welded kaumaha ma hope o ka weld annealing. ʻAʻole koi ʻia kēia ʻanuʻu no 304L. Hiki ke hoʻohana ʻia ka papa 321 inā ʻaʻole hiki ke mālama i ka wela ma hope o ka weld.

Ka Hui Kimia)