Silver alloy kev ua tau zoo txhim kho

Nyiaj yog mos heev thiab yooj yim rau txheej txheem.Txhawm rau txhim kho nws lub zog thiab hardness thiab ua kom nws hnav tsis kam, tib neeg tau ntev ntxiv tooj liab rau cov nyiaj los ua cov nyiaj-tooj ​​liab alloys, uas yog siv rau hauv cov hniav nyiaj hniav kub, tableware thiab nyiaj npib.Txhawm rau txhim kho kev ua haujlwm ntawm cov nyiaj-tooj ​​liab alloys, npib tsib xee, beryllium, vanadium, lithium thiab lwm yam peb feem ntau ntxiv los ua ternary alloys.Tsis tas li ntawd, muaj ntau ntau lwm yam ntxiv rau cov nyiaj kuj tuaj yeem ua lub luag haujlwm ntxiv dag zog.Cov nyhuv ntawm cov ntsiab lus alloying ntawm Brinell hardness ntawm cov nyiaj yog pom nyob rau hauv daim duab 1. Cadmium kuj yog ib qho uas feem ntau siv ntxiv dag zog.

Txawm hais tias nyiaj yog inert nyob rau hauv ib qho chaw organic, nws yog yooj yim corroded thiab sulfurized los ntawm ib tug sulfur-muaj huab cua.Kev txhim kho cov nyiaj tsis kam mus rau sulfidation kuj yog los ntawm kev sib tsoo, xws li ntxiv kub thiab palladium kom txo tau cov nyiaj sulfide zaj duab xis tsim.Tsis tas li ntawd, ntau lub hauv paus hlau xws li manganese, antimony, tin, germanium, arsenic, gallium, indium, aluminium, zinc, nickel, thiab vanadium kuj tuaj yeem muab ntxiv rau nyiaj los txhim kho nws cov sulfur.Muaj ntau ntau hom nyiaj-raws li hluav taws xob tiv tauj cov ntaub ntawv, nyob rau hauv lub xeev alloyed, thiab lawv tseem tuaj yeem ua rau cov hlau tsis zoo los ntawm cov hmoov metallurgy.Lawv lub hom phiaj yog kom muaj zog, hnav thiab txhim kho kev sib cuag hluav taws xob.Rau ntau lub hom phiaj, feem ntau ntxiv ntau yam.Nyob rau hauv cov khoom siv hluav taws xob qis qis qis, manganese, iridium, bismuth, txhuas, txhuas los yog thallium feem ntau tau ntxiv los ua kom hnav tsis kam.Nyiaj-raws li alloy brazing muab tub lim hlau yog hom brazing muab tub lim hlau nrog ntau lub npe, siv dav tshaj plaws, thiab cov khoom loj tshaj plaws ntawm cov khoom muaj nqi hlau brazing muab tub lim.Lub ntsiab yuav tsum tau rau brazing alloys yog vuam kub, melting point, wettability thiab vuam zog.Nyiaj alloys li brazing muab tub lim hlau feem ntau ntxiv nrog tooj liab, zinc, cadmium, manganese, tin, indium thiab lwm yam alloying ntsiab los txhim kho vuam kev ua tau zoo.