Tooj alloyyog ib qho alloy uas muaj cov tooj liab dawb li cov matrix thiab ib lossis ob peb lwm yam ntxiv.Raws li cov txheej txheem tsim khoom, nws tuaj yeem muab faib ua tooj liab alloy thiab deformed tooj liab alloy.
Feem ntau cov cam khwb cia tooj liab tsis tuaj yeem raug nias ua haujlwm, xws li cam khwb cia beryllium bronze thiab cam khwb cia tin bronze, cov alloys no tsis tshua muaj plasticity thiab tsis tuaj yeem nias ua haujlwm.Ntshiab tooj liab feem ntau hu ua liab tooj liab.Nws cov hluav taws xob conductivity, thermal conductivity, corrosion kuj thiab plasticity yog zoo heev, tab sis nws lub zog thiab hardness yog tsawg, thiab nws kim heev.Yog li ntawd, nws tsis tshua muaj siv los ua qhov chaw.Copper alloys yog dav siv nyob rau hauv machinery.Brass yog tooj liab alloy nrog zinc ua lub ntsiab tseem ceeb.
Nrog rau kev nce ntawm zinc cov ntsiab lus, lub zog thiab plasticity ntawm cov alloy nce ntau, tab sis nws cov khoom siv kho tshuab yuav txo qis thaum nws tshaj 47%, yog li zinc cov ntsiab lus ntawm tooj dag yog tsawg dua 47%.Ntxiv nrog rau zinc, cam khwb cia tooj dag feem ntau muaj cov alloying xws li silicon, manganese, txhuas, thiab txhuas.Cov cuab yeej cuab tam ntawm cam khwb cia tooj dag yog siab dua li cov bronze, tab sis tus nqi qis dua li ntawm bronze.Cam khwb cia tooj dag feem ntau yog siv nyob rau hauv dav dav-lub hom phiaj bearing bushings, gears thiab lwm yam coj qhov chaw thiab li qub thiab lwm yam corrosion-resistant qhov chaw.
Alloys uas muaj cov ntsiab lus uas tsis yog tooj liab thiab zinc yog sib sau ua ke hu ua bronze.Ntawm lawv, cov alloy ntawm tooj liab thiab tin yog cov bronze ntau tshaj plaws, hu ua tin bronze.Tin bronze muaj tsawg linear shrinkage thiab tsis yooj yim los tsim shrinkage kab noj hniav, tab sis nws yog ib qho yooj yim los tsim microscopic shrinkage.Qhov sib ntxiv ntawm zinc, txhuas thiab lwm cov ntsiab lus rau cov tin bronze tuaj yeem txhim kho qhov kev sib txuam thiab hnav tsis kam ntawm cov casting, txuag cov nyiaj ntawm cov tin, thiab ntxiv phosphorus rau deoxidation.Txawm li cas los xij, nws yog ib qho yooj yim los tsim micro-shrinkage, yog li nws yog tsim rau hnav-resistant thiab corrosion-resistant qhov chaw uas tsis xav tau siab compactness.
Ntxiv nrog rau tin bronze, aluminium bronze muaj cov khoom siv zoo heev thiab hnav tsis kam thiab corrosion kuj, tab sis nws cov castability tsis zoo, yog li nws tsuas yog siv rau qhov tseem ceeb ntawm kev hnav thiab corrosion kuj.Muaj ntau cov tooj liab alloys tuaj yeem siv rau ob qho tib si casting thiab deforming.Feem ntau wrought tooj liab alloys tuaj yeem siv rau casting, thaum ntau cov cam khwb cia tooj liab tsis tuaj yeem deformed xws li forging, extrusion, sib sib zog nqus nqus thiab kos duab.
Post lub sij hawm: Jun-07-2022