Bronzes feem ntau yog ductile alloys. Los ntawm txoj kev sib piv, feem ntau cov bronzes yog qhov tsawg dua li cov hlau cam khwb cia. Feem ntau bronze tsuas yog oxidizes superficially; ib zaug tooj liab oxide (thaum kawg ua tooj liab carbonate) txheej yog tsim, lub hauv paus hlau yog tiv thaiv los ntawm corrosion ntxiv. Txawm li cas los xij, yog tias tooj liab chlorides raug tsim, ib qho kev tiv thaiv corrosion hu ua "bronze kab mob" thaum kawg yuav ua kom puas tag. Copper-based alloys muaj cov ntsiab lus qis dua li cov hlau los yog hlau, thiab tau yooj yim ua los ntawm lawv cov khoom siv hlau. Lawv feem ntau yog kwv yees li 10 feem pua ntawm cov hlau, txawm hais tias cov alloys siv txhuas los yog silicon tuaj yeem ntom me ntsis. Bronzes yog softer thiab tsis muaj zog tshaj steel-bronze springs, piv txwv li, tsis tshua muaj zog (thiab thiaj li khaws cia tsawg zog) rau tib bulk. Bronze resists corrosion (tshwj xeeb tshaj yog seawater corrosion) thiab hlau qaug zog ntau dua hlau thiab yog ib tug zoo conductor ntawm tshav kub thiab hluav taws xob ntau tshaj steels. Tus nqi ntawm tooj liab-puag alloys feem ntau yog siab dua li ntawm cov hlau tab sis qis dua li ntawm cov nickel-base alloys.
Copper thiab nws cov alloys muaj ntau yam kev siv uas muaj kev cuam tshuam rau lawv lub cev, kev siv tshuab, thiab tshuaj lom neeg. Qee qhov piv txwv yog cov khoom siv hluav taws xob siab ntawm cov tooj liab ntshiab, cov khoom sib txhuam qis ntawm cov kabmob bronze (bronze uas muaj cov ntsiab lus ntawm cov hlau lead siab - 6-8%), cov khoom zoo ntawm tswb tooj liab (20% tin, 80% tooj liab) , thiab kev tiv thaiv corrosion los ntawm hiav txwv dej ntawm ntau bronze alloys.
Lub melting point ntawm bronze nws txawv nyob ntawm seb qhov piv ntawm cov alloy Cheebtsam thiab yog hais txog 950 ° C (1,742 ° F). Bronze tej zaum yuav tsis muaj hlau nplaum, tab sis qee cov hlau nplaum uas muaj hlau lossis npib tsib xee yuav muaj cov khoom sib nqus.
Vim yog bronze foil muaj qhov ua tau zoo, nws tau dav siv los ua cov khoom siv los tiv thaiv kev puas tsuaj ntawm cov khoom siv hluav taws xob, cua nruj nreem casting, txuas, pins thiab cov cuab yeej siab precision. Nws muaj cov yam ntxwv hauv qab no:
- siab phosphorus cov ntsiab lus, zoo heev qaug zog;
- Zoo elasticity thiab abrasive tsis kam;
- Tsis muaj hlau nplaum, zoo mechanical zog thiab txheej txheem kev ua tau zoo;
- Zoo corrosion kuj, yooj yim rau weld thiab braze, thiab tsis muaj txim rau kev cuam tshuam;
- Zoo conductivity, nyab xeeb nyob rau hauv high kub.
Post lub sij hawm: Sep-29-2020