Ob Qib hauv Cov Lus Nug
H59 thiab H62 yog tooj liab-zinc alloys ntawm ob- theem tsev neeg. Cov lej hais txog cov ntsiab lus tooj liab nominal: H59 muaj txog 59% tooj liab, H62 txog 62%, nrog zinc ua qhov sib npaug. Hauv kev sib koom ua ke ntawm cov lej lawv zaum ze rau Muntz hlau thiab cov tsev neeg daj daj, C28000 yog cov classic 60/40 muaj pes tsawg leeg, thaum lub sij hawm European tsim qauv qhia tib yam alloys li CuZn40 thiab CuZn37 raws.
Vim tooj liab yog cov khoom kim heev, peb - taw tes qhov sib txawv ntawm cov ntsiab lus tooj liab kuj pom qhov txawv ntawm tus nqi. Tias yog vim li cas ob qib feem ntau muab los ua lwm txoj hauv kev, thiab vim li cas qhov kev txiav txim siab yuav tsum tau txiav txim siab los ntawm lub luag haujlwm ntawm qhov tsis yog ntawm cov lus hais ib leeg.
Tshuaj muaj pes tsawg leeg
Cov txiaj ntsig hauv qab no ua raws li cov khoom siv tooj liab sib xyaw txwv ntawm GB / T 5231 series, uas yog tus qauv feem ntau hais rau H59 thiab H62 bar, pas nrig thiab ntu hauv kev lag luam xa tawm. Cov ntsiab lus tsuas yog txwv rau cov qib seem uas tau teev tseg hauv tus qauv ntawd.
| Element | H62 (CuZn37 hom) | H59 (CuZn40 hom) |
|---|---|---|
| Tooj liab (Cu),% | 60.5-63.5 | 57.0-60.0 |
| Hlau (Fe), % max | 0.15 | 0.30 |
| Lead (Pb), % max | 0.08 | 0.50 |
| Lwm cov ntsiab lus, tag nrho, % max | 0.50 | 1.00 |
| Zinc (Zn) | Tseem tshuav | Tseem tshuav |
Qhov dav impurity pub ntawm H59, tshwj xeeb tshaj yog rau cov hlau lead, yog ib qho laj thawj uas nws tshuab ntau dua thiab raug nqi tsawg dua, thiab kuj yog ib qho laj thawj uas nws tsis tsim nyog rau cov ntawv thov uas qhov kev tiv thaiv corrosion lossis kev sib cuag zaub mov tseem ceeb heev.
Structure, Mechanical Behavior thiab Temper
Ob qib yog alpha-beta brasses nyob rau hauv chav tsev kub, tab sis H62 zaum ze rau ntawm alpha ciam teb thiab muaj feem ntau ntawm cov mos alpha theem, thaum H59 muaj ntau dua ntawm beta theem nyuaj. Cov txiaj ntsig tau zoo yog qhov ncaj ncees: H62 yog cov khoom siv hluav taws xob ntau dua thiab txias, thiab H59 muaj zog dua thiab zoo dua rau kev ua haujlwm kub. Mechanical qhov tseem ceeb tsis yog ib tus lej rau ob qib, vim hais tias tus qauv tabulates yam tsawg kawg nkaus tensile lub zog, yield zog thiab elongation nyias nyias rau txhua tus me nyuam temper, los ntawm mos annealed los ntawm ib nrab nyuaj mus rau hard drawn.
| Yam ntxwv | H62 | H59 |
|---|---|---|
| Dominant theem tshuav nyiaj li cas | Ntau alpha theem | Ntau beta theem |
| Txias formability | Zoo heev; haum rau kev sib sib zog nqus kos duab thiab khoov | Nruab nrab; tawg yog tias ua haujlwm hnyav heev |
| Kub ua haujlwm | Zoo | Zoo heev; qib ntawm kev xaiv rau kub forging |
| Lub zog thiab hardness | Nruab nrab; nce nrog kev ua haujlwm txias | Siab dua ntawm tib lub siab |
| Machineability | Ncaj ncees; chips yog stringy | Zoo dua, pab los ntawm cov nyiaj txhuas siab dua |
| Tus nqi txheeb ze | Siab dua, vim cov ntsiab lus tooj liab | qis |
Rau ib qho kev kub ntxhov, kev ua haujlwm txias ua rau lub zog tensile thiab txo elongation hauv ob qib, yog li cov khoom vaj khoom tsev ntawm tus qauv, tsis yog lub npe qib, yog qhov tseeb ntawm qhov kev lees paub.
Corrosion thiab Service Cwj Pwm
Ob lub alloys nyob ntawm cov ntsiab lus tooj liab rau lawv qhov kev tawm tsam. H62 muaj tooj liab ntau dua thiab yog li lub qhov rais loj dua ntawm kev pabcuam ruaj khov hauv dej thiab hauv cov huab cua me me. H59, nrog rau cov ntsiab lus zinc ntau dua thiab cov nyiaj txhuas ntau dua, nws yooj yim dua rau dezincification hauv chloride-cov dej thiab kev ntxhov siab- corrosion cracking nyob rau hauv ib puag ncig ammoniacal.
Cov dej haus thiab cov dej ntxhib me me: H62 yog qhov muaj kev nyab xeeb dua ntawm ob, tshwj xeeb tshaj yog qhov dej chemistry sib txawv.
Cov dej hiav txwv thiab dej khib nyiab: tsis muaj qib yog qhov kev xaiv raug rau lub neej ntev -. Arsenical lossis txhuas tooj dag, lossis tooj liab- qib nickel, yuav tsum tau teev tseg.
Ammonia lossis amine ib puag ncig: zam ob qib, lossis siv cov kev ntxhov siab rau kev ntxhov siab thiab tswj cov kev ntxhov siab uas seem.
Atmospheric raug: H62 khaws nws cov tsos zoo dua; H59 tarnishes thiab tuaj yeem dezincify hauv chloride-laden cua.
Qhov twg dezincification tsis kam yog qhov yuav tsum tau ua, ib qho hlau uas muaj cov tshuaj tiv thaiv xws li arsenic yog teev ntau dua li ntawm ob qib no.
Forming, Joining thiab Machining
Cold forming: H62 nyob rau hauv lub annealed temper yog dov, kos, stamped thiab sib sib zog nqus kos tsis intermediate annealing rau nruab nrab txo; H59 yuav tsum muaj kev sib tw ntau zaus thiab txo qis dua ib zaug.
Kev tsim kub: H59 forges, extrudes thiab stamps zoo tshaj qhov kub thiab txias ntau yam thiab yog qhov kev xaiv niaj hnub rau lub cev valve, fittings thiab lwm yam forged qhov chaw.
Machining: ob qib tau txais txiaj ntsig los ntawm kev coj ua, pub dawb- txiav qhov sib txawv uas tsis siv neeg machining yog cov txheej txheem tseem ceeb; tus qauv coj tooj dag qib tshuab nrawm nrawm dua li qib qib.
Brazing thiab soldering: ob leeg koom tau yooj yim; ib tug nitrogen pururge los yog flux matched rau lub alloy ua kom lub sib koom ua ke huv si.
Vuam: fusion vuam ntawm cov tooj dag no nyuaj vim zinc volatilisation. Welded fabrications nyob rau hauv tooj dag yog ib txwm zam nyob rau hauv kev pom zoo ntawm brazed los yog mechanical pob qij txha.
Kev ntxhov siab: anneal tom qab hnyav ua haujlwm txias qhov chaw yuav raug ya raws los yog ammonia, kom tshem tawm cov kev ntxhov siab uas ua rau lub caij tawg.
Qib twg los xaiv
| Daim ntawv thov | Qib pom zoo | Yog vim li cas |
|---|---|---|
| Sib sib zog nqus nqus khob, radiator qhov chaw, gaskets | H62 | Ductility thiab kev coj tus cwj pwm zoo ib yam |
| Hluav taws xob connectors, terminals, hu rau springs | H62 | Conductivity ua ke nrog formability |
| Kho kom zoo nkauj kho vajtse thiab architectural trim | H62 | Xim stability thiab corrosion kuj |
| Kub forged valve lub cev, twj tso kua mis, fittings | H59 | Kub workability thiab txo nqi |
| Machined fasteners, ceev, me me tig qhov chaw | H59 los yog leaded dawb -qib txiav | Lub zog thiab machining kev lag luam |
| Cov khoom xyaw hauv chloride -cov dej | Tsis yog qib | Siv cov tooj dag uas tsis muaj zog lossis tooj liab -nickel alloy |
Txoj cai dav dav yog tias H62 yuav cov qauv tsim, cov npoo npoo corrosion thiab xim ruaj khov, thaum H59 yuav lub zog, kub ua haujlwm thiab tus nqi.
FAQ
Q: Tus lej hauv H59 thiab H62 yog dab tsi?
Tus lej qhia txog cov ntsiab lus tooj liab ntawm cov hlau: H62 muaj txog 62% tooj liab thiab H59 txog 59%, nrog zinc ua qhov sib npaug. Lub npe no yog siv nyob rau hauv Suav wrought tooj liab alloy npe system.
Q: Qhov twg muaj zog dua, H59 lossis H62?
Nyob rau tib lub sijhawm xa khoom, H59 feem ntau yog qhov muaj zog thiab nyuaj ntawm ob, vim tias nws muaj ntau dua ntawm beta theem. Qhov tsawg kawg nkaus qhov tseem ceeb nyob ntawm tus npau taws thiab tabulated nyob rau hauv tus qauv siv, yog li lub npe qib ib leeg tsis txhais tau tias txais.
Q: Qib twg zoo dua rau kev khoov thiab kos duab sib sib zog nqus?
H62. Nws cov ntsiab lus tooj liab siab dua muab cov feem ntau ntawm cov ductile alpha theem, yog li nws lees txais qhov sib sib zog nqus rub thiab nruj dua khoov ua ntej nws xav tau qhov nruab nrab anneal.
Q: Vim li cas H59 corrode yooj yim dua?
Cov ntsiab lus zinc ntau dua thiab cov hlau lead ntau dua ua rau nws yooj yim dua rau dezincification hauv chloride-cov dej thiab ua rau muaj kev ntxhov siab corrosion hauv ammonia-cov kabmob ib puag ncig. H62 muaj cov npoo loj dua vim nws cov ntsiab lus tooj liab ntau dua.
Q: Puas yog ob qib tuaj yeem hloov tau rau ib leeg?
Tsuas yog tom qab tshuaj xyuas. Hloov H59 rau H62 hauv qhov sib sib zog nqus los yog sib sib zog nqus feem ntau ua rau tawg, thaum hloov H62 rau H59 hauv qhov kub forged yuav nce nqi thiab tuaj yeem txo lub zog. Kev hloov pauv yuav tsum muaj lub rooj vaj huam sib luag ntawm cov qauv siv tau thiab lub luag haujlwm ntawm qhov yuav tsum tau muab piv, tsis yog cov lus hais xwb.
Q: Puas yog ob qib xav tau kev ntxhov siab tom qab tsim?
Kev ntxhov siab yog pom zoo tom qab ua haujlwm txias txias rau txhua qhov chaw uas yuav pom cov dej noo, chlorides lossis ammoniacal cua, vim tias qhov kev ntxhov siab seem yog tus tsav tsheb ntawm lub caij tawg. Annealing ntawm qhov kub uas tsim nyog rau cov hlau thiab temper tshem tawm feem ntau ntawm kev pheej hmoo.
