Taw qhia
Kab lus no piav qhia txog cov yam ntxwv ntawm tooj dag piv nrog lwm cov hlau. Brass yog ib tsev neeg ntawm tooj liab- zinc alloys uas nws cov khoom hloov pauv nrog tooj liab - mus rau - zinc piv. Cov ntsiab lus tooj liab, uas muaj li ntawm 57 feem pua mus rau ntau dua 95 feem pua, txiav txim siab cov xim, lub zog, formability, corrosion kuj thiab nqi ntawm cov alloy.
Dab tsi txiav txim siab Brass Properties
Zinc yog ntxiv rau tooj liab raws li qhov qis - nqi zog ntxiv. Nyob rau theem qis zinc alloy yog ib zaug -theem thiab ductile heev; saum toj no li ntawm 37 feem pua zinc ib theem thib ob tshwm sim uas nce lub zog thiab kub- ua haujlwm tau zoo tab sis txo qhov txias formability. Qib zinc kuj cuam tshuam rau tus cwj pwm corrosion, thiab alloys nrog cov ntsiab lus zinc siab dua yog qhov cuam tshuam rau dezincification nyob rau hauv ib puag ncig chloride.
Common Brass Tsev Neeg
High- tooj dag tooj liab xws li C21000 thiab C22000 yog siv rau cov hniav nyiaj hniav kub, cov quav hniav thiab cov hlau gilding; 70/30 cartridge tooj dag C26000 yog qhov sib sib zog nqus- kos duab qauv; 60/40 Muntz hlau C28000 yog qib kub- ua haujlwm; thiab coj dawb- txiav qib xws li C36000 yog machined ntawm kev kub ceev. Tin, txhuas, txhuas thiab arsenic ntxiv tsim cov tooj dag tshwj xeeb rau cov haujlwm tshwj xeeb.
| Qib | Cu% | Lub Npe | Kev siv tseem ceeb |
|---|---|---|---|
| C21000 | 94 - 96 | Gilding tooj dag | Cov hniav nyiaj hniav kub, plaques |
| C26000 | 68.5 - 71.5 | Cartridge tooj dag | Daim duab sib sib zog nqus |
| C28000 | 59 - 63 | Muntz hlau | Kub ua haujlwm, architecture |
| C36000 | 60 - 63 | Dawb - txiav tooj dag | Machined qhov chaw |
Brass Versus Lwm Cov Khoom Siv
Piv nrog rau tooj liab, tooj dag muaj zog dua, nyuaj thiab pheej yig dua tab sis tsawg dua conductive. Piv nrog rau cov hlau tsis muaj steel, tooj dag yog yooj yim dua rau tshuab thiab tsim, ua kom sov zoo dua thiab raug nqi tsawg, tab sis nws muaj zog dua thiab tuaj yeem dezincify hauv dej txhoj puab heev. Kev sib piv qhia txog kev xaiv cov fittings, cov raj thiab cov khoom siv rau txhua qhov kev pabcuam.
Cov khoom thiab cov qauv
Brass yog tsim raws li daim ntawv, sawb, pas nrig, bar, hlau, raj thiab forgings raws li cov qauv xws li ASTM B36, B134, B135, B16, B453 thiab B21. Qhov sib npaug Suav tau txhais los ntawm GB / T 5231 thiab cov qauv khoom rau txhua daim ntawv.
Kev Taw Qhia Xaiv
Sib piv cov qib rau txoj kev tsim, qhov chaw corrosion thiab lub hom phiaj ntawm tus nqi, thiab xyuas qhov muaj pes tsawg leeg thiab npau taws ntawm daim ntawv pov thawj. Rau cov khoom siv kho kom zoo nkauj xaiv qib siab - tooj liab; rau machined fittings xaiv ib tug dawb- txiav qib; rau seawater xaiv dezincification- qib resistant.
