1. C36000 yog renowned raws li "100%" benchmark rau machinability. Lub luag haujlwm tshwj xeeb ntawm metallurgical ntawm 3.0% Lead (Pb) cov ntsiab lus yog dab tsi, thiab qhov no yuav ua li cas thiaj tsim tau qhov kev lag luam tseem ceeb - tawm ntawm kev tsim cov chips zoo heev thiab kev ua haujlwm kub tsis txaus?
Cov hlau lead hauv C36000 ua haujlwm zoo li cov khoom siv hluav taws xob sab hauv thiab cov roj nplua nyeem. Nws lub luag hauj lwm yog metallurgically tshwj xeeb vim cov hlau lead yog zoo insoluble nyob rau hauv tooj liab -zinc solid tov.
Metallurgical Mechanism: Thaum lub sij hawm solidification, cov hlau lead precipitates tawm raws li ib tug cais, mos, thiab discontinuous theem, ua feeb globules dispersed uniformly thoob plaws hauv lub alpha- tooj dag matrix.
Lub luag haujlwm hauv Machining: Thaum lub cuab yeej txiav cov khoom siv, cov khoom muag muag no:
Ua raws li Kev Nyuaj Siab Concentrators: Lawv tsim cov ntsiab lus ntawm qhov tsis muaj zog uas tiv thaiv kev tsim cov chips ntev, tsis tu ncua, stringy.
Muab Internal Lubrication: Cov hlau lead smears raws lub cuab yeej -chip interface, txo kev sib txhuam, tsim hluav taws xob, thiab txiav quab yuam.
Txhawb Chip Breaking: Qhov tshwm sim yog tsim cov chips me me, tawg tau yooj yim tshem tawm, tso cai rau kev nrawm dua, kev txiav tob dua, thiab qhov tshwj xeeb nto tiav. Qhov kev sib xyaw no txhais tau tias nws 100% machinability ntsuas.
Kev Lag Luam Tseem Ceeb- tawm: Kev Ua Haujlwm Kub Kub Kub Kub
Qhov tib microstructure uas pab machining ua C36000 kiag li tsis haum rau kev ua haujlwm kub. Thaum rhuab mus rau qhov kub siab (tshaj qhov taw tes melting ntawm cov hlau lead, ~ 327℃lossis 621℃F), cov hmoov txhuas yaj. Cov kua theem no, faib raws li cov ciam teb, rhuav tshem cov cohesion ntawm cov nplej nplej. Txhua qhov kev sim ua haujlwm kub cov khoom siv-xws li forging, kub dov, lossis extrusion- ua rau tsis ua hauj lwm tam sim ntawd, ua rau cov hlau tsis sib haum los yog "kub luv." Yog li ntawd, C36000 phaj tsuas tuaj yeem tsim los ntawm kev dov txias thiab yuav tsum tsis txhob raug kub - txheej txheem txheej txheem.
2. Rau cov chaw tsim khoom tsim cov khoom siv hluav taws xob zoo xws li cov tsheb npav tsis sib xws lossis cov khoom siv hluav taws xob los ntawm C36000 phaj, dab tsi yog qhov zoo ntawm kev qhia "High Ductility" (piv txwv li, annealed O60 temper) phaj dhau tus qauv ib nrab -mob npau taws?
Qhov zoo tshaj plaws yog lub peev xwm los ua qhov tseem ceeb ntawm kev sib sau txias thiab khoov tom qab cov txheej txheem machining yam tsis muaj cracking.
Standard Ib nrab-Hard (H02) Temper: Qhov kub no txias - dov los ua kom muaj zog. Thaum nws muaj kev ua haujlwm zoo, nws cov ductility thiab elongation raug txo. Yog tias lub tshuab ua haujlwm yuav tsum tau ua haujlwm tom qab khoov lossis stamping, qhov txias - cov qauv ua haujlwm tau txwv tsis pub muaj peev xwm ntxiv cov yas deformation, ua rau muaj kev pheej hmoo siab ntawm kev tawg ntawm qhov khoov radii.
High Ductility / Annealed (O60) Temper: Cov phaj no tau muab tso rau hauv qhov kub thiab txias ntawm recrystallization thiab maj mam txias, uas ua rau cov mos mos, tag nrho recrystallized microstructure nrog ib tug tsawg dislocation ceev.
Qhov zoo rau Fabrication: Ib feem tuaj yeem yog qhov tseeb-machined los ntawm cov mos mos, annealed phaj thiab tom qab ntawd raug rau kev ua haujlwm (xws li, 90-degree khoov, flanged ntug, lossis npib) nrog zoo formability. Lub siab ductility tso cai rau cov khoom ntws los ntawm plastically rau hauv cov duab tshiab yam tsis muaj kev ua haujlwm.
Kev txiav txim siab: Cov khoom kawg yuav nyob rau hauv lub xeev mos. Yog tias lub caij nplooj ntoos hlav- rov qab yog qhov teeb meem lossis siab dua qhov yuav tsum tau muaj nyob rau hauv qhov kawg, qhov qis - qhov kub ntawm qhov kev ntxhov siab yuav raug siv tom qab tsim kom ruaj khov ntawm cov duab kos yam tsis muaj qhov txo qis ductility.
Qhov no "tshuab-ces-form" workflow yog qhov laj thawj tseem ceeb rau kev xaiv siab -ductility C36000 phaj rau complex, tsis yog -cylindrical Cheebtsam.
3. Nyob rau hauv ib daim ntawv thov architectural, ib tug C36000 phaj tej zaum yuav raug xaiv rau ib tug zoo meej, machined hniav vaj huam sib luag. Thaum nws cov machinability yog zoo meej rau qhov no, dab tsi yog nws qhov kev tiv thaiv corrosion nyob rau hauv ib qho chaw sab nraum zoov, thiab dab tsi tshwj xeeb kev kho deg yuav raug siv los xyuas kom meej ntev - lub sij hawm zoo nkauj?
Thawj qhov kev tiv thaiv corrosion yog Dezincification.
Mechanism: C36000, zoo li lwm yam tooj dag, muaj kev cuam tshuam rau cov txheej txheem leaching uas cov zinc tivthaiv yog qhov zoo tshaj plaws corroded, tawm hauv qab ib qho ntxeem tau, tsis muaj zog, thiab tooj liab -nplua nuj daim txhuam cev. Nyob rau hauv ib puag ncig sab nraum zoov, qhov no feem ntau tshwm sim los ntawm cov kua qaub tsis muaj zog hauv cov dej nag (xws li carbonic acid) thiab nrawm los ntawm qhov muaj cov chlorides hauv marine lossis de-icing ntsev ib puag ncig. Cov hmoov txhuas tsis cuam tshuam cov txheej txheem no.
Qhov tshwm sim: Cov tshuaj tiv thaiv poob lub zog thiab txhim kho qhov tsis pom kev, reddish -xim av, ntxeem tau nto li zinc yog leached.
Qhov Tseem Ceeb Ntawm Kev Kho Mob: Clear Txheej
Txhawm rau khaws lub tshuab ua kom zoo nkauj thaum muab kev tiv thaiv, yuav tsum muaj lub zog tiv thaiv txheej txheej:
Kev Npaj Nto: Lub phaj machined yuav tsum tau ua tib zoo ntxuav kom tshem tawm tag nrho cov roj thiab cov kua machining.
Chemical Pretreatment: Cov txheej txheem hloov pauv, xws li benzotriazole-raws li tshuaj, feem ntau yog siv. Qhov no ua rau nyias, tiv thaiv molecular txheej uas complexes nrog tooj liab nto, inhibiting tarnish thiab muab lub hauv paus superior rau cov organic txheej.
Daim ntawv thov ntawm Clear Organic Txheej: Lub siab -kev ua tau zoo, UV- lub tsho ntshiab ruaj khov yog qhov tseem ceeb. Cov kev xaiv muaj xws li:
Acrylic Urethanes: Muab cov UV ua haujlwm zoo thiab pom tseeb.
Fluoropolymers (piv txwv li, PVDF): Muab qhov tshwj xeeb ntev ntev - UV stability, xim tuav, thiab tshuaj tiv thaiv, ua rau lawv qhov kev xaiv zoo tshaj rau ntau xyoo- lub neej ua haujlwm ntev.
Cov txheej txheem no tiv thaiv cov tooj dag los ntawm cov dej noo thiab cov kab mob corrosive, tiv thaiv ob qho tib si dezincification thiab ntuj tarnishing rau xim av los yog ntsuab patina, yog li xauv rau hauv lub hom phiaj "ci ci tooj dag".
4. Thaum vuam los yog siab -kub brazing C36000 phaj feem, nws yog feem ntau suav hais tias yog ib qho kev tsis zoo. Dab tsi yog qhov tshwj xeeb tsis ua haujlwm los ntawm cov ntsiab lus txhuas, thiab lwm txoj kev sib koom ua ke yog qhov xav tau?
Cov txheej txheem tsis ua haujlwm tshwj xeeb yog Liquid Metal Embrittlement (LME) thiab tsim cov pa phem.
Failure Mechanism:
Liquid Hlau Embrittlement: Raws li cov cua sov los ntawm vuam los yog brazing mus txog thiab tshaj qhov melting point ntawm txhuas (327℃/ 621℃F), cov hlau lead hais liquefy. Cov kua ua kua no, nyob rau hauv kev sib cuag nrog cov khoom tooj dag cov ciam teb nyob rau hauv lub thermal kev nyuaj siab ntawm vuam, wicks rau hauv cov ciam teb. Qhov no ua rau txo qis lub zog ntawm intergranular, ua rau intergranular cracking thiab kev puas tsuaj brittleness nyob rau hauv lub tshav kub- cuam tshuam cheeb tsam (HAZ).
Toxic Fume Generation: Lub tshav kub kub vaporizes txhuas, tsim cov pa roj carbon monoxide lom heev uas ua rau muaj kev phom sij rau tus neeg teb xov tooj thiab xav tau kev tswj cua txias heev.
Txoj Kev Xaiv Zoo Tshaj Plaws Zoo Tshaj Plaws Kev Koom Tes:
Vim cov kev pheej hmoo no, fusion vuam raug zam. Cov txheej txheem nyiam yog:
Mechanical Fastening: Siv cov ntsia hlau, rivets, lossis bolts. Qhov no yog qhov yooj yim, txhim khu kev qha, thiab zam tag nrho cov cua sov- ntsig txog teeb meem.
Adhesive Bonding: Siv siab -lub zog muaj epoxies lossis acrylics. Qhov no yog qhov zoo heev rau kev faib kev ntxhov siab thiab koom nrog thaj chaw loj.
Soldering: Thaum lub brazing kub dhau lawm, qis - kub soldering (siv tin - nyiaj los yog tin- lead solders nrog cov ntsiab lus melting zoo hauv qab 250℃/ 480℃F) tuaj yeem ua tiav. Qhov ntsuas kub tsawg txaus kom tsis txhob yaj cov hmoov txhuas, tiv thaiv LME. Txawm li cas los xij, lub zog sib koom ua ke yog qis dua lub braze, thiab cov khoom seem yuav tsum tau muab ntxuav kom huv si kom tsis txhob muaj corrosion yav tom ntej.
5. Hauv kev txheeb xyuas tus nqi / kev ua tau zoo rau lub siab - ntim cov khoom siv hluav taws xob sib txuas hauv tsev, muab piv rau C36000 phaj kom yooj yim dua - rau - phaj tab sis tsis siv cov hlau tsis zoo xws li C26000 (Cartridge Brass), dab tsi yog qhov tseem ceeb ntawm kev lag luam tshaj li tus nqi raw khoom uas ua rau kev xaiv ntawm C36000?
Qhov kev txiav txim siab yog qhov nyuaj heev hauv Kev Tsim Khoom Siv thiab Kev Siv Lub Neej, uas feem ntau tswj hwm tag nrho cov nqi hauv siab - ntim ntau lawm.
C26000 (Cartridge Brass): Muaj kev ntsuas kev ua haujlwm ntawm ib puag ncig 30%. Nws yog nruj dua, ua ntev, stringy chips uas tuaj yeem tangle hauv tshuab. Nws yuav tsum tau txiav kom qis dua, txiav quab yuam ntau dua, thiab ua rau muaj kev hloov pauv ntau zaus rau regrinding lossis hloov. Qhov no ua rau lub sijhawm qeeb qeeb thiab ua haujlwm ntau dua thiab cov cuab yeej siv rau ib feem.
C36000 (Free-Txiav Brass): Nrog nws 100% kev ntsuas kev ua haujlwm, nws ua rau:
Faster Cycle Sijhawm: Cov tshuab tuaj yeem khiav ntawm qhov nrawm nrawm dua thiab pub tus nqi, ua ntau qhov hauv ib teev.
Cov cuab yeej siv lub neej ntev: Cov cuab yeej siv sijhawm ntev dua ntawm kev ua kom ntse, txo qis lub sijhawm rau cov cuab yeej hloov pauv thiab txo cov nqi siv khoom siv.
Superior Surface Finish: Feem ntau tshem tawm qhov xav tau rau kev ua haujlwm thib ob ua ntej plating.
Uninterrupted Automation: Cov chips me me, tawg yog qhov zoo tagnrho rau cov tshuab ntsia hlau thiab CNC tshuab, tiv thaiv chip jams uas nres ntau lawm.
Kev xam nyiaj txiag:
Thaum C36000 phaj muaj tus nqi siab dua ib kilogram vim nws cov ntsiab lus txhuas, tag nrho cov nqi ntawm ib qho tiav yuav luag ib txwm qis. Cov nyiaj txuag tau los ntawm kev ua kom nrawm nrawm, txo cov khoom seem, thiab cov nqi siv cuab yeej qis dua sai dua cov khoom siv thawj zaug. Rau qhov siab - ntim khoom siv hluav taws xob sib txuas, qhov twg ntau lab ntawm cov khoom tsim tawm, qhov kev txuag nyiaj me me no txhais tau tias txo tus nqi tag nrho, ua rau C36000 yog qhov kev xaiv zoo tshaj plaws.
