Ama-bronzes ngokuvamile angama-alloy ductile kakhulu. Uma kuqhathaniswa, ama-bronze amaningi aqinile kakhulu kune-cast iron. I-bronze ngokuvamile i-oxidize kuphela ngaphandle; uma ungqimba lwe-copper oxide (ekugcineni luba yi-copper carbonate) lwakhiwe, insimbi engaphansi ivikelekile ekugqwaleni okuqhubekayo. Nokho, uma ama-copper chloride akheka, i-corrosion-mode ebizwa ngokuthi “isifo sethusi” ekugcineni izoyibhubhisa ngokuphelele. Ama-alloys asekelwe ethusi anamaphuzu aphansi okuncibilika kunensimbi noma insimbi, futhi akhiqizwa kalula ngezinsimbi zawo. Ngokuvamile aminyene ngamaphesenti angu-10 kunensimbi, nakuba ama-alloys asebenzisa i-aluminium noma i-silicon angase abe ngaphansi kancane. Ama-bronze athambile futhi abuthakathaka kunensimbi—iziphethu zethusi, ngokwesibonelo, aziqinile kangako (ngakho zigcina amandla amancane) ngenqwaba efanayo. I-bronze imelana nokugqwala (ikakhulukazi ukugqwala kwamanzi olwandle) kanye nokukhathala kwensimbi ngaphezu kwensimbi futhi iyikhondatha engcono yokushisa nogesi kunezinsimbi eziningi. Izindleko zama-alloys esisekelo se-copper ngokuvamile ziphakeme kunezinsimbi kodwa ziphansi kunalezo ze-nickel-base alloys.
I-Copper nama-alloys ayo anezinhlobonhlobo ezinkulu zokusetshenziswa ezibonisa izici zayo ezihlukahlukene zomzimba, zemishini, namakhemikhali. Ezinye izibonelo ezivamile ukuqhutshwa kukagesi okuphezulu kwethusi elimsulwa, izakhiwo ezingqubuzana kancane zethusi (ithusi elinomthamo omningi womthofu— 6-8%), izimfanelo ezizwakalayo zensimbi yethusi (20% ithini, 80% yethusi) , kanye nokumelana nokugqwala kwamanzi olwandle ama-alloys amaningi ethusi.
Iphoyinti lokuncibilika lethusi liyahlukahluka kuye ngesilinganiso sezingxenye zengxubevange futhi licishe libe ngu-950 °C (1,742 °F). Ithusi lingase lingabi-nozibuthe, kodwa ama-alloy athile aqukethe insimbi noma i-nickel angase abe nezakhiwo kazibuthe.
Ngenxa yefoyili yethusi inokusebenza okuyingqayizivele, iye yasetshenziswa kabanzi njengezinto ezinqanda ukuhuzuka ezingxenyeni zemishini kagesi, ukusakazwa kokuqina komoya okuphezulu, izixhumi, izikhonkwane nezinsimbi ezinemba okuphezulu. Inezici ezilandelayo:
- okuqukethwe okuphezulu kwe-phosphorus, ukumelana nokukhathala okukhulu;
- Ukunwebeka okuhle kanye nokumelana ne-abrasive;
- Azikho izinto kazibuthe, ezinhle zemishini kanye nokusebenza kwenqubo;
- Ukumelana nokugqwala okuhle, kulula ukushisela nokugqama, futhi akukho nhlansi emthelela;
- I-conductivity enhle, ephephile ekushiseni okuphezulu.
Isikhathi sokuthumela: Sep-29-2020