Mhangura (Cu) nemhangura-nickel (copper-nickel (Cu-Ni) alloys zvose zvinhu zvinokosha, asi maumbirwo awo akasiyana uye zvinhu zvinoita kuti zvikodzere kushandiswa kwakasiyana-siyana.
Pakati payo, mhangura yakachena isimbi yakapfava, inogadzika inozivikanwa nekunaka kwemagetsi nekupisa. Iyo yakanyanya ductile, zvichiita kuti zvive nyore kuumba kuita waya, pombi, uye mapepa, izvo zvinotsanangura kushandiswa kwayo kwakapararira mumagetsi emagetsi uye kupisa. Nekudaro, mhangura yakachena ine zvipingamupinyi zvakakosha: inowanzoita ngura munzvimbo dzakaoma, kunyanya kana yaiswa mumvura yemunyu, acid, kana zvinosvibisa maindasitiri. Nekufamba kwenguva, inogadzira patina yakasvibirira (oxidation layer), iyo inogona kunetesa zvinhu uye kukanganisa kuita mumashandisirwo akaita semugungwa kana makemikari kugadzirisa.
Cu-Ni alloys, zvakasiyana, batanidza mhangura ne nickel (kazhinji 10-30% nickel, pamwe nesimbi shoma uye manganese) kugadzirisa utera uhwu. Musanganiswa uyu unoshandura zvinhu zvezvinhu, kutanga nesuperior corrosion resistance. Iyo nickel yemukati inogadzira inodzivirira oxide layer inodzivirira gomba, kukoromoka, uye kukukurwa-kunyangwe mumvura yemunyu, mvura ine brackish, kana tsvina yemumaindasitiri. Izvi zvinoita kuti Cu-Ni ive yakanakira zvinhu zvemugungwa zvakaita sezvikepe, masisitimu emvura yegungwa, uye pombi yemafuta ekumahombekombe, uko mhangura yakachena yaizokurumidza kushatisa.
Mechanical simba ndiyo imwe nzvimbo iyo Cu-Ni inodarika mhangura yakachena. Nepo mhangura yakachena iri ductile, inoshaya simba rekusimba rinodiwa kune yakanyanya-stress application. Cu-Ni alloys, nekuda kwearoyi zvinhu zvawo, zvinopa simba rakakwirira uye kuoma, zvichiita kuti zvikodzere zvikamu zvinorema-basa semapombi, mavharuvhu, uye machubhu ekupisa. Ivo zvakare vanochengeta kuchinjika, vachibvumira kugadzirwa kuri nyore pasina kupira kusimba.
Panyaya yekupisa uye yemagetsi conductivity, mhangura yakachena ichiri kutungamirira, asi Cu-Ni inochengetedza zvakakwana conductivity yezvido zvakawanda zvemaindasitiri-ichiwedzera bhenefiti yakakosha yekuramba kwecorrosion. Iyi chiyero inoita kuti Cu-Ni ive chinhu chesarudzo munzvimbo dzinokosha kuita uye hupenyu hurefu.
Zvigadzirwa zvedu zveCu-Ni zvakagadzirwa kuti zvikwidziridze zvakanakira izvi. Inowanikwa nenzira dzakasiyana siyana (waya, mapepa, machubhu) uye nziyo dze nickel, dzakagadzirwa-chaizvo-zvinogadzirwa kuti zvisangane nemitemo yeindasitiri yakasimba. Ingave yeinjiniya yemugungwa, kugadzirwa kwemakemikari, kana maindasitiri emuchina, zvigadzirwa zvedu zveCu-Ni zvinounza kuvimbika, hupenyu hurefu, uye mutengo-unoshanda izvo mhangura yakachena haigone kuenderana. Sarudza Cu-Ni yezvishandiso uko kuita mumamiriro ezvinhu akaomarara kusingagone kutaurirana-uye vimba kuti zvigadzirwa zvedu zvinodarika zvaunotarisira.
Nguva yekutumira: Sep-12-2025