Alloys yakavakirwa sirivheri uye mamwe masimbi. Kune marudzi akawanda esirivha alloys, ayo anonyanya kukosha ndeaya: sirivha-mhangura alloys, silver-magnesium alloys, silver-nickel alloys, silver-tungsten alloys, silver-iron alloys uye silver-cerium alloys.
Zvinhu zvinokosha zvesimbi zvine sirivha sechinhu chikuru. Kazhinji shandisa sirivha yakachena kana sirivha yakakwirira (99.9*** pamusoro) sezvigadzirwa, inofanira kudzivisa bismuth, lead, antimony nezvimwe zvinokuvadza. Sirivha inogona kuumbwa iine zvinhu zvakawanda mune yakasimba mhinduro, intermetallic komisheni kana yepakati nhanho, pamwe nemhando dzakawanda dzezvakaumbwa zvinhu (enhema alloy). Zvichienderana nezvinodiwa, vanogona kugadzirwa kuita mabhinari, ternary kana polyalloys. Silver alloys anoshandiswa zvakanyanya munzvimbo dzakawanda dzeindasitiri tekinoroji.
Iko kushandiswa kukuru kwesirivha alloys ndeiyi:
(1) sirivha-based brazing material, kunyanya sirivha-mhangura-zinc alloys sehwaro hwekuumbwa kweiyo alloy series, yakadai seAgCuZn system, AgCuZnCd system, AgCuZnNi system; sirivha-nickel alloy, sirivha-copper alloy;
Iine 90% sirivheri uye 10% yemhangura alloy inonzi currency sirivheri, melting point 875 ℃; ine 80% sirivha uye 20% yemhangura alloy inonzi yakanaka basa sirivheri, melting point 814 ℃; ine 40% kana 60% sirivheri nemhangura, zingi, cadmium alloys inonzi sirivheri solder, inonyungudika inodarika 600 ℃. Inonyanya kushandiswa kubatanidza iyo yakakwirira simba zvinodiwa zvesimbi zvigadzirwa.
(2) sirivha-based contact materials, kunyanya sirivha-copper alloy (AgCu3, AgCu7.5), uye silver-cadmium oxide alloy uye sirivheri-nickel alloy;
(3) Silver-based resistance materials, sirivheri manganese tin alloy resistance coefficient iri pakati nepakati, kupikisa tembiricha coefficient yakaderera, iyo mhangura yekupisa inogona idiki, inogona kushandiswa seyakajairwa resistor uye potentiometer inomonereka zvinhu; sirivheri molybdenum alloy, sirivheri tungsten alloy, sirivheri ferroalloy, sirivheri cadmium alloy;
(4) sirivha-based plating zvinhu, zvinowanzoshandiswa sirivha-tin alloy AgSn3 ~ 5, AgPb0.4 ~ 0.7, AgPd3 ~ 5 zvichingodaro;
(5) Silver-based mazino zvinhu, sirivheri amalgam, inozivikanwawo seamalgam, inonzi mercury sechinhu chinonyungudutsa, sirivheri-mhangura-tin-zinc sehupfu hwealloy, maitiro anoitika kuburikidza nekukuya uye kuumbwa kwemhando yealloy, ndiyo yakanyanya kunaka veneer zvinhu. Silver amalgam AgxHg, chena isina kuenzana brittle yakasimba. Kuumbwa kwayo kunosiyana zvichienderana nekushisa kwekuumbwa; Ag13Hg (445°C), Ag11Hg (357°C), Ag4Hg (302°C), AgHg2 (pasi pe300°C)
Silver alloy properties inovandudza.
Sirivha yakapfava zvakanyanya uye iri nyore kushanda. Kuti ivandudze simba rayo uye kuoma uye kuwedzera kusakara kwayo, kare kare vanhu vakawedzera mhangura kune sirivheri kuita sirivha-copper alloys, iyo inoshandiswa muzvishongo, tableware uye mari yesirivha. Kuti uvandudze kushanda kwesirivha-copper alloy, kazhinji kuwedzera nickel, beryllium, vanadium, lithium uye rimwe boka rechitatu rezvinhu mu ternary alloys. Mukuwedzera, kune zvimwe zvakawanda zvinowedzerwa kune sirivheri zvinogonawo kuita basa mukusimbisa.
Kunyange zvazvo sirivheri iri inert mu organic atmosphere, asi zviri nyore kuva sarufa-ine mhepo corrosion uye sulfide. Kuvandudzwa kwesirivheri sulfide kuramba kuri zvakare kuburikidza nenzira yealloying, sekuwedzera kwegoridhe uye palladium kunogona kuderedza chiyero chesirivheri sulfide film generation. Uye zvakare, akawanda mabhesi esimbi masimbi akadai semanganese, antimony, tini, germanium, arsenic, gallium, indium, aluminium, zinc, nickel, vanadium musirivheri inogonawo kuvandudza maitiro ayo e-anti-sulfuration. Sirivha-yakavakirwa magetsi emagetsi ekubatanidza zvinhu akawanda marudzi, kune alloy state, kune zvakare anoshandiswa muhupfu simbi nzira dzakagadzirwa nenhema alloy, chinangwa ndechekusimbisa, kusapfeka-kusagadzikana uye kugadzirisa magetsi ekubata zvivakwa.
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Nguva yekutumira: Mar-07-2024