1. Qhov kev ua tau zoo ntawm C28000 yog dab tsi?
Mechanical Strength: Tensile zog ranges ntawm 415-550 MPa (annealed: 415 MPa; txias- ua haujlwm: mus txog 550 MPa), nrog lub zog tawm ntawm 170-480 MPa thiab elongation ntawm kev tawg ntawm 15-45%. Qhov sib npaug ntawm lub zog thiab ductility ntau tshaj qhov uas tsis muaj zinc brasses (xws li, C26000 cartridge tooj dag).
Corrosion Resistance: Cov khoom pov thawj zoo heev rau atmospheric corrosion, dej tshiab, thiab nruab nrab dej ntsev ib puag ncig. Nws tsim cov yeeb yaj kiab oxide tiv thaiv ntawm qhov chaw, tiv thaiv oxidation ntxiv. Txawm li cas los xij, nws tsis haum rau cov xov xwm corrosive heev (piv txwv li, concentrated acids, ammonia).
Thermal & Hluav taws xob conductivity: Thermal conductivity yog ~ 110 W / (m·K) (ntawm 20 degree), thiab hluav taws xob conductivity yog ~ 23% IACS (International Annealed Copper Standard). Thaum qis dua cov tooj liab ntshiab lossis qis-zinc brasses, nws ua tau raws li qhov yuav tsum tau ua ntawm feem ntau cov qauv siv thiab siv tshuab.
Machineability: Rated raws li "zoo" (machinability Performance index ~ 70, piv rau C36000 dawb- txiav tooj dag=100). Nws tuaj yeem ua tau yooj yim los ntawm kev tig, milling, drilling, thiab tapping, nrog cov cuab yeej siv tsawg tsawg thaum siv cov kua txiav tsim nyog.
FormabilityKev ua haujlwm kub zoo (qhov kub zoo tshaj plaws: 600-850 degree), haum rau forging, extrusion, dov, thiab khoov. Txias formability yog nruab nrab; annealing (300-400 degree) yog pom zoo tom qab hnyav ua hauj lwm los kho ductility.
Weldability: Tau welded los ntawm cov pa roj tungsten arc vuam (GTAW/TIG) thiab roj hlau arc vuam (GMAW/MIG) siv tooj dag muab hlau (xws li, ERCuZn-A). Brazing thiab soldering kuj ua tau, tab sis oxyacetylene vuam tsis pom zoo vim zinc evaporation.
2. Qhov zoo ntawm C28000 yog dab tsi?
Superior Strength -Ductility Balance: Outperforms low-zinc brasses nyob rau hauv tensile lub zog thaum tswj kom txaus ductility, ua rau nws zoo tagnrho rau load- bearing Cheebtsam (xws li li qub, fittings, shafts).
Zoo heev Marine Corrosion Resistance: Resistant pitting thiab dezincification nyob rau hauv dej ntsev ib puag ncig, ib qho tseem ceeb kom zoo dua rau marine hardware (xws li, kiv cua shafts, hull fittings, marine li qub) thiab ntug hiav txwv infrastructure.
Tus nqi -Cov: Cov ntsiab lus zinc ntau dua txo cov nqi khoom siv piv rau tooj liab- nplua nuj alloys (xws li, C22000 cartridge brass) thaum khaws cov cwj pwm tseem ceeb, muab tus nqi sib tw -kev ua tau zoo.
Ntau yam txheej txheem: Combines zoo machinability, kub formability, thiab weldability, enabling efficiency ntawm complex Cheebtsam yam tsis muaj nqi ntau lawm.
Durability: Siab tiv taus hnav thiab qaug zog, ua kom lub neej ua haujlwm ntev hauv kev siv dynamic (xws li, twj impellers, zog, fasteners).
Tsis yog-Magnetic: Haum rau cov ntawv thov uas tsis yog - cov khoom sib nqus (xws li, cov khoom siv hluav taws xob, cov cuab yeej precision).
3. Dab tsi yog qhov tsis zoo ntawm C28000?
Txaus siab rau Dezincification hauv Aggressive Environments: Nyob rau hauv cov xov xwm corrosive heev (xws li, concentrated chlorides, acids, los yog alkaline daws), dezincification (xaiv leaching ntawm zinc) yuav tshwm sim, ua rau txo lub zog thiab nkig tsis ua hauj lwm. Txhawm rau txo qhov no, "dezincification-}resistant (DZR)" qib (xws li, C28000 nrog me me ntxiv ntawm arsenic, antimony, los yog phosphorus) muaj tab sis tuaj ntawm tus nqi siab dua.
Tsawg hluav taws xob / Thermal conductivity: Tsis zoo rau cov tooj liab ntshiab, C11000, lossis qis-zinc brasses, ua rau nws tsis haum rau siab -cov khoom siv hluav taws xob zoo (xws li, fais fab cables, busbars) lossis cov khoom siv hluav taws xob uas xav tau kev hloov pauv siab tshaj plaws.
Zinc evaporation Thaum lub sij hawm siab -Tub kub ua: Thaum kub siab tshaj 900℃(piv txwv li, thaum lub sij hawm vuam tsis zoo los yog forging), zinc evaporates, tsim cov zinc oxide fumes (kev puas tsuaj rau kev noj qab haus huv) thiab txo cov alloy kev ntseeg siab. Yuav tsum tau tswj qhov kub thiab txias thiab qhov cua.
Txwv Cold Formability: Tsawg ductile nyob rau hauv lub xeev txias piv rau C26000; hnyav ua haujlwm txias (piv txwv li, sib sib zog nqus nqus) tuaj yeem ua rau tawg tshwj tsis yog tias qhov kev sib tshuam ntawm kev sib tsoo yog ua, ua rau lub sijhawm ntau lawm thiab cov nqi.
Tsis haum rau High-Pressure/High-Tub kub Corrosive Services: Tsis tuaj yeem tiv taus cov xwm txheej hnyav (piv txwv li, siab - siab zog, muaj zog acids, lossis ammonia), qhov twg nickel-raws li alloys (xws li, Inconel) lossis stainless hlau (xws li 316L) yog qhov tsim nyog dua.
Lead Content Kev txhawj xeeb: Tus qauv C28000 tuaj yeem muaj cov hmoov txhuas (tsawg dua lossis sib npaug li 0.07%), uas txwv tsis pub siv rau hauv cov zaub mov -kev tiv tauj, dej haus, lossis daim ntawv thov kev kho mob. Lead- lwm txoj kev pub dawb (piv txwv li, C28000 nrog txhuas Less dua los yog sib npaug rau 0.01%) muaj tab sis tej zaum yuav txo qis machinability me ntsis.
