I-alloy ye-FeCrAl ivame kakhulu ensimini yokushisa kagesi.

Ngenxa yokuthi inezinzuzo eziningi, vele inezinkinga, ake siyifunde.

Izinzuzo:

1, Izinga lokushisa lokusetshenziswa emkhathini liphezulu.

Izinga lokushisa eliphezulu le-HRE alloy ku-iron-chromium-aluminium electrothermal alloy lingafinyelela ku-1400℃, kanti izinga lokushisa eliphezulu le-Cr20Ni80 ku-nickel-chromium electrothermal alloy lingafinyelela ku-1200℃.

2, Impilo yenkonzo ende

Ngaphansi kokushisa okufanayo okuphezulu kwesevisi emoyeni, impilo ye-Fe-Cr-Al ingaba yinde ngokuphindwe kabili kunaleyo ye-Ni-Cr.

3, Umthwalo ophezulu wobuso

Ngenxa yokuthi i-Fe-Cr-Al alloy ivumela izinga lokushisa eliphezulu lenkonzo kanye nokuphila isikhathi eside kwenkonzo, umthwalo womphezulu wengxenye ungaba phezulu, okungenzi nje kuphela ukuthi izinga lokushisa likhuphuke ngokushesha, kodwa futhi kusindisa izinto ze-alloy.

4, Ukumelana okuhle kwe-oxidation

Isakhiwo sefilimu ye-Al2O3 oxide esakhiwe phezu kwe-Fe-Cr-Al alloy sincane, sinamathela kahle ne-substrate, futhi akulula ukubangela ukungcola ngenxa yokusabalala. Ngaphezu kwalokho, i-Al2O3 ine-resistivity ephezulu kanye ne-melting point, okunquma ukuthi ifilimu ye-Al2O3 oxide inokumelana okuhle kakhulu kwe-oxidation. Ukumelana kwe-carburizing nakho kungcono kune-Cr2O3 eyakhiwe phezu kwe-Ni-Cr alloy.

5, Amandla adonsela phansi amancane athile

Ubukhulu obuqondile be-alloy ye-Fe-Cr-Al buncane kunobe-alloy ye-Ni-Cr, okusho ukuthi kuyonga kakhulu ukusebenzisa i-alloy ye-Fe-Cr-Al kune-alloy ye-Ni-Cr lapho kwenziwa izingxenye ezifanayo.

6, Ukumelana okuphezulu

Ukumelana kwe-Fe-Cr-Al alloy kuphakeme kunokwe-Ni-Cr alloy, ngakho-ke izinto ezinkulu ze-alloy zingakhethwa lapho kuklanywa izingxenye, okuzuzisa ukwandisa impilo yenkonzo yezingxenye, ikakhulukazi ezintanjeni ezincane ze-alloy. Uma kukhethwa izinto ezinezincazelo ezifanayo, lapho kuphakama ukumelana, izinto eziningi zizogcinwa, futhi indawo yezingxenye esithandweni izoba ncane. Ngaphezu kwalokho, ukumelana kwe-Fe-Cr-Al alloy akuthinteki kakhulu ekusebenzeni okubandayo kanye nokwelashwa kokushisa kunokwelashwa kwe-Ni-Cr alloy.

7, Ukumelana okuhle kwesulfure

Insimbi, i-chromium kanye ne-aluminium zinokumelana okuhle nokugqwala emoyeni oqukethe isibabule kanye nalapho ubuso bungcoliswa izinto eziqukethe isibabule, kuyilapho i-nickel kanye ne-chromium kuzoguguleka kakhulu.

8, Intengo eshibhile

I-iron-chromium-aluminium ishibhile kakhulu kune-nickel-chromium ngoba ayinayo i-nickel engavamile.

Okubi:

1, Amandla aphansi ekushiseni okuphezulu

Ukuqina kwayo kuyanda ngokwanda kwezinga lokushisa. Uma izinga lokushisa lingaphezu kuka-1000℃, izinto zizonwebeka kancane kancane ngenxa yesisindo sazo, okuzobangela ukuguquka kwento.

2, Kulula ukuthola ukuphuka okukhulu

Ngemva kokusetshenziswa ekushiseni okuphezulu isikhathi eside futhi kupholiswe esithandweni, kuba buthakathaka njengoba okusanhlamvu kukhula, futhi akukwazi ukugoba uma kubanda.

3, Umagnetic

I-alloy ye-fecral ngeke ibe namandla kagesi ngaphezu kuka-600°C.

4, Ukumelana nokugqwala kubuthakathaka kune-nicr alloy.

Uma unolwazi olwengeziwe, wamukelekile ukuxoxa nathi.

Singakhiqiza imikhiqizo ye-fecral alloy engamathani angaba ngu-200, uma uyidinga, sicela ukhululeke ukuxhumana nathi.