FeCrAl alloy ndiyofala kwambiri m'malo otenthetsera magetsi.

Chifukwa ili ndi zabwino zambiri, imakhalanso ndi zovuta zake, lolani kuiphunzira.

Ubwino:

1, Kutentha kwa ntchito mumlengalenga ndikokwera kwambiri.

Kutentha kwakukulu kwa ntchito ya HRE aloyi mu iron-chromium-aluminium electrothermal alloy imatha kufika 1400 ℃, pamene Cr20Ni80 alloy mu nickel-chromium electrothermal alloy imatha kufika 1200 ℃.

2, Moyo wautali wautumiki

Pansi pa kutentha kwapamwamba komweko mumlengalenga, moyo wa Fe-Cr-Al ukhoza kukhala nthawi 2-4 kuposa wa Ni-Cr element.

3, High pamwamba katundu

Chifukwa Fe-Cr-Al alloy imalola kutentha kwautumiki komanso moyo wautali wautumiki, gawo la gawo lapansi limatha kukhala lalitali, zomwe sizimangopangitsa kutentha kukwera mwachangu, komanso kupulumutsa zida za alloy.

4, Good oxidation kukana

Kapangidwe ka filimu ya Al2O3 oxide yomwe imapangidwa pamwamba pa Fe-Cr-Al alloy ndi yaying'ono, imakhala yabwino kumamatira ndi gawo lapansi, ndipo sikophweka kuyambitsa kuipitsa chifukwa chakumwaza. Komanso, Al2O3 ali mkulu resistivity ndi malo osungunuka, amene amatsimikizira kuti Al2O3 okusayidi filimu ali kwambiri makutidwe ndi okosijeni kukana. Kukana kwa carburizing kulinso kwabwinoko kuposa Cr2O3 yopangidwa pamwamba pa Ni-Cr alloy.

5, Mphamvu yokoka yaying'ono

Mphamvu yokoka ya Fe-Cr-Al alloy ndi yaying'ono kuposa ya Ni-Cr alloy, zomwe zikutanthauza kuti ndi ndalama zambiri kugwiritsa ntchito Fe-Cr-Al alloy kuposa Ni-Cr alloy popanga zigawo zomwezo.

6, High resistivity

The resistivity wa Fe-Cr-Al alloy ndi apamwamba kuposa Ni-Cr aloyi aloyi, kotero zipangizo aloyi zazikulu akhoza kusankhidwa popanga zigawo zikuluzikulu, zomwe n'zopindulitsa kutalikitsa moyo utumiki zigawo zikuluzikulu, makamaka mawaya abwino aloyi. Pamene zipangizo zomwe zili ndi zizindikiro zomwezo zimasankhidwa, kuwonjezereka kwa resistivity, zinthu zambiri zidzapulumutsidwa, ndipo malo ang'onoang'ono a zigawo mu ng'anjo adzakhala. Kuonjezera apo, resistivity ya Fe-Cr-Al alloy sichimakhudzidwa kwambiri ndi ntchito yozizira ndi kutentha kutentha kusiyana ndi Ni-Cr alloy.

7, Kukana bwino kwa sulfure

Iron, chromium ndi aluminiyamu zimalimbana bwino ndi dzimbiri mumlengalenga wokhala ndi sulfure komanso pamene pamwamba paipitsidwa ndi zinthu zomwe zili ndi sulfure, pomwe faifi tambala ndi chromium zidzakokoloka kwambiri.

8, mtengo wotsika

Iron-chromium-aluminium ndi yotsika mtengo kwambiri kuposa faifi tambala-chromium chifukwa ilibe faifi wosowa.

Zoyipa:

1, Mphamvu yochepa pa kutentha kwakukulu

Mapulasitiki ake amawonjezeka ndi kuwonjezeka kwa kutentha. Kutentha kukakhala pamwamba pa 1000 ℃, zinthuzo zimatambasuka pang'onopang'ono chifukwa cha kulemera kwake, zomwe zingayambitse kusinthika kwa chinthucho.

2, Zosavuta kupeza brittleness yayikulu

Pambuyo pogwiritsidwa ntchito pa kutentha kwakukulu kwa nthawi yaitali ndikuzizidwa mu ng'anjo, imakhala yonyezimira pamene njere ikukula, ndipo sichikhoza kupindika pozizira.

3, Magnetic

Fecral alloy idzakhala yopanda maginito kupitirira 600 ° C.

4, Kukana kwa Corrosion ndikocheperako kuposa nicr alloy.

Ngati muli ndi zambiri, talandiridwa kuti mukambirane nafe.

Titha kupanga pafupifupi 200 matani fecral aloyi mankhwala, ngati mukufuna, chonde omasuka kulankhula nafe.