ʻOkoʻa ka pale wela 309S 310S a me 253MA kila kila.

ʻO ke kila kila kūpaʻa wela maʻamau i māhele ʻia i ʻekolu ʻano, 309S, 310S a me 253MA, hoʻohana pinepine ʻia ke kila kūpaʻa wela i ka hana ʻana i nā paila, nā turbine mahu, nā umu ʻoihana a me nā ʻoihana mokulele, petrochemical a me nā ʻoihana ʻē aʻe i nā ʻāpana hana wela kiʻekiʻe.

1.309s: (OCr23Ni13) pā kila kila

Nā ʻano: Hiki iā ia ke kū i ka hoʻomehana pinepine ʻana ma lalo o 980 ℃, me ka ikaika wela kiʻekiʻe, ke kū'ē ʻana i ka oxidation a me ke kū'ē ʻana i ka carburizing.

Noi: mea umu, hiki ke hoʻohana ʻia e hana i nā ʻāpana kila wela, ʻO kona ʻike chromium a me ka nickel kiʻekiʻe e hōʻoiaʻiʻo i ke kūpaʻa maikaʻi ʻana i ka corrosion a me ke kūpaʻa oxidation.

Ke hoʻohālikelike ʻia me ka austenitic 304 alloy, ʻoi aku ka ikaika ma ka mahana o ka lumi. I ke ola maoli, hiki ke hoʻomehana pinepine ʻia ma 980 ° C e mālama i ka hana maʻamau. 310s: (0Cr25Ni20) papa kila kila.

2.310s: (OCr25Ni20) pā kila kila

Nā ʻano: Ke kila kila austenitic chromium-nickel kiʻekiʻe me nā waiwai mechanical wela kiʻekiʻe a me ke kūpaʻa maikaʻi i ka corrosion i nā media oxidizing. Kūpono no ka hana ʻana o nā ʻāpana umu like ʻole, ʻo ke kiʻekiʻe loa o ka mahana 1200 ℃, ka mahana hoʻohana mau 1150 ℃.

Noi: mea umu, mea hana hoʻomaʻemaʻe kaʻa.

ʻO ke kila kila kila 310S kahi hui kila kila austenitic kūpaʻa loa i ka palaho i hoʻohana ʻia ma nā ʻano wela kiʻekiʻe a me nā ʻano ʻino. He koho maikaʻi loa ia no nā noi ma nā ʻoihana petrochemical, kemika, a me ka mālama wela, a no nā ʻāpana umu a me nā noi wela kiʻekiʻe ʻē aʻe. ʻO ka papa kila kila 310S he pepa pālahalaha a lahilahi i hana ʻia mai kēia hui kila kikoʻī.

3.Papa kila kila 253MA (S30815)

Nā ʻano: He kila kila Austenitic kūpaʻa wela ka 253MA i hoʻolālā ʻia no nā noi e pono ai ka ikaika kolo kiʻekiʻe a me ke kūpaʻa maikaʻi i ka pala. ʻO kona pae mahana hana he 850-1100 ℃.

ʻO 253MA kahi ʻano kikoʻī o ka hui kila kila i hoʻolālā ʻia no nā noi wela kiʻekiʻe. Hāʻawi ia i ke kūpaʻa maikaʻi loa i ka oxidation, sulfidation, a me ka carburization i nā mahana kiʻekiʻe. ʻO kēia ka mea e kūpono ai no ka hoʻohana ʻana i nā ʻoihana like ʻole, me nā mea e pili ana i ka wela a me ka pala, e like me ka petrochemical, ka hana mana, a me nā ʻāpana umu ʻoihana.He mau ʻāpana lahilahi a pālahalaha nā pepa 253MA i hana ʻia mai kēia metala hao. Hoʻohana ʻia lākou i nā ʻano hana like ʻole kahi e pono ai ka hui pū ʻana o ke kūpaʻa wela kiʻekiʻe a me ke kūpaʻa ʻana i ka pala. Hiki ke ʻoki ʻia nā pepa a hana ʻia i nā ʻano like ʻole e hoʻokō ai i nā koi kikoʻī o kahi papahana.

Nā Pepa 253MA, Nā Papa Hoʻohui Kemika

Nā waiwai mīkini o ka papa 253MA

ʻO ke kūpaʻa ʻana o ka papa 253MA a me ke kaiapuni hoʻohana nui:

1. Ke Kū'ē ʻana i ka ʻAi ʻAna: Loaʻa iā 253MA ke kūpaʻa maikaʻi loa i ka oxidation, ke kūpaʻa ʻana i ka wela kiʻekiʻe, a me ka ikaika mechanical wela kiʻekiʻe kupaianaha. He kūpono loa ia i loko o ka pae mahana o 850 a 1100°C.

2. Pae Mahana: No ka hana kūpono loa, ʻoi aku ka maikaʻi o 253MA no ka hoʻohana ʻana i loko o ka pae mahana o 850 a 1100°C. Ma nā mahana ma waena o 600 a me 850°C, hana ʻia nā loli kūkulu, e alakaʻi ana i ka emi ʻana o ka paʻakikī o ka hopena ma ka mahana o ka lumi.

3. Ikaika Mekanika: ʻOi aku kēia metala i nā kila kila maʻamau, e like me 304 a me 310S, ma ke ʻano o ka ikaika tensile pōkole ma nā mahana like ʻole ma mua o 20%.

4. Hoʻohuihui Kemika: Loaʻa iā 253MA kahi hoʻohuihui kemika kaulike e hāʻawi iā ia i ka hana kūikawā ma ka pae mahana o 850-1100°C. Hōʻike ia i ke kūpaʻa oxidation kiʻekiʻe loa, e kū ana i nā mahana a hiki i 1150°C. Hāʻawi pū ia i ke kūpaʻa kolo maikaʻi loa a me ka ikaika haki kolo.

5. Ke Kū'ē ʻana i ka ʻAʻa: Ma waho aʻe o kona mau hiki ke wela kiʻekiʻe, hōʻike ʻo 253MA i ke kūpaʻa maikaʻi loa i ka ʻaʻa wela kiʻekiʻe a me ka ʻaʻa pulumu i ka hapa nui o nā wahi kinoea.

6. Ikaika: Loaʻa iā ia ka ikaika kiʻekiʻe a me ka ikaika tensile i nā mahana kiʻekiʻe.

7.Formability a me ka Weldability: Ua ʻike ʻia ʻo 253MA no kona formability maikaʻi, weldability, a me ka mīkini.