903 Bronze Chemical Composition
C90300 feem ntau yog tooj liab (90%), txhuas (3%), thiab npib tsib xee (7%). Qhov kev sib xyaw ua ke no tsim cov alloy nrog zoo heev corrosion kuj thiab siab tensile zog. Ntxiv npib tsib xee rau cov hlau kuj tseem tuaj yeem pab txo qhov hnav thiab tsim kua muag ntawm cov khoom siv thaum ua haujlwm.
| Cu% 1 | Pb% | Sn% | Zn% | Fe% | P%1,2 | Ni% | Al% | S% | Sb% | Si% | |
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
|||||||||||
| 86.00- 89.00 |
0.30 | 7.50- 9.00 |
3.00- 5.00 |
0.20 | 0.05 | 1.00 | 0.005 | 0.05 | 0.20 | 0.005 | |
903 Bronze Chemical Properties
Thaum raug dej hiav txwv los yog lwm qhov chaw corrosive, cov ntsiab lus tooj liab nyob rau hauv C90300 ua raws li ib tug barrier uas tiv thaiv corrosion los ntawm seeping mus rau hauv cov hlau lub puab txheej. Qhov no ua rau nws zoo tagnrho rau siv nyob rau hauv cov ntug hiav txwv dej los yog lwm qhov chaw uas muaj huab cua hnyav los yog av noo. Tsis tas li ntawd, uns c90300 muaj kev tiv thaiv zoo tiv thaiv cov kua qaub uas siv hauv kev lag luam xws li electroplating lossis pickling kev ua haujlwm.
903 Bronze Mechanical Properties
Cov khoom siv kho tshuab ntawm C90300 ua rau nws haum rau ntau yam kev siv uas lub zog thiab kav ntev yog qhov tseem ceeb. Nws muaj lub zog tensile siab (txog 900 MPa), zoo qaug zog zog (txog 500 MPa), zoo creep kuj (txog 400 MPa), zoo hnav tsis kam (txog 250 MPa), zoo heev cuam tshuam toughness (txog 40). J / cm2), zoo hluav taws xob conductivity, zoo heev thermal conductivity, thiab elasticity modulus mus txog 180 GPa. Cov yam ntxwv no ua rau nws haum rau siv hauv li qub, twj, bearings, bushings, gaskets, fasteners, gears, shafts, rods thiab lwm yam. uas yuav tsum muaj qib siab ntawm hnav tsis kam lossis kev poob siab.
| Tensile zog, min | Yield Strength, ntawm 0.5% Extension Under Load, min | Elongation, hauv 2 nti lossis 50 hli min | Brinell Hardness (500 kg load) | Lus hais | ||
|---|---|---|---|---|---|---|
| ksi ua | MPa | ksi ua | MPa | % | ib txwm BHN | |
| 44 | 303 | 22 | 152 | 18 | 70 | |
903 Bronze Lub cev muaj zog
UNS c90300 muaj qhov ntom ntom ntawm 8-8.4 g / cm3, muab nws qhov hnyav tag nrho piv rau lwm cov hlau xws li hlau. Qhov no, ua ke nrog nws cov thermal conductivity zoo heev, ua rau nws tshwj xeeb tshaj yog muaj txiaj ntsig zoo rau cov ntawv thov uas txuag qhov hnyav, xws li cov khoom siv tsheb lossis cov khoom siv cav. Tsis tas li ntawd, cov hlau no nthuav tawm cov machinability zoo heev ua rau nws yooj yim rau kev ua haujlwm nrog thaum tsim cov khoom tawm ntawm cov khoom no.
903 Bronze Thermal Properties
| Kev kho mob | Tus nqi* | Sijhawm ** |
|---|---|---|
| Kev ntxhov siab | 500 | |
| Kev kho mob | 0 |
903 Bronze siv
Bronze yog ib qho alloy ntawm tooj liab thiab tin, ua rau nws ob qho tib si ruaj thiab tiv taus corrosion thiab xeb. Nrov siv nyob rau hauv architecture, kho vajtse, duab puab, jewellery-making, npib, thiab riam phom mus txog rau thaum lub Industrial Revolution pib nyob rau hauv lub xyoo pua puv 19, bronze tseem yog ib qho khoom siv niaj hnub no nrog ntau niaj hnub siv. Dhau li ntawm nws cov kev siv hauv marine hardware, cov hlau no zoo heev rau lub tshuab thiab tsheb qhov chaw uas xav tau kev txhim kho hluav taws xob conductivity thiab tiv thaiv dej ntsev corrosion. Cov kws kos duab kuj tseem siv tooj liab rau ntau yam duab kos duab, xws li cov duab kos duab lossis cov duab puab, vim tias nws tuaj yeem raug molded rau hauv ntau hom thiab yuav kav ntev mus rau ntau pua xyoo yam tsis xav tau kev saib xyuas ntau. Thaum kawg, bronze kuj tseem siv rau cov twj paj nruag zoo li glockenspiels thiab cymbals vim nws lub suab zoo uas tsuas yog cov hlau no tuaj yeem tsim tau.
Corrosion Resistance
Bronze 903 paub txog nws qhov kev tiv thaiv corrosion zoo tshaj thiab ua haujlwm ntev, ua rau nws yog qhov kev xaiv zoo tshaj plaws rau ntau yam kev siv thoob plaws hauv kev lag luam. Nws muaj cov ntsiab lus siab nickel thiab ntxiv zog rau cov hlau; Raws li qhov tshwm sim, nws muab kev tiv thaiv zoo tshaj plaws tiv thaiv corrosion nyob rau hauv txawm tias qhov chaw nruj tshaj plaws. Nws cov qauv zoo li qub tau raug pov thawj los pab tsim cov duab nyuaj thiab cov profiles tsis muaj kev puas tsuaj lossis tsis muaj zog ntawm cov hlau nws tus kheej. Qhov zoo no ua rau Bronze 903 cov hlau xaiv rau ntau qhov haujlwm tshwj xeeb uas cov khoom siv feem ntau ua tsis tiav.
Thaum tshav kub kub Resistance
Bronze yog cov khoom muaj txiaj ntsig zoo vim nws cov kav ntev, lub zog thiab kub tsis kam. Nrog cov txheej txheem casting niaj hnub thiab thev naus laus zis, bronze tau txais txiaj ntsig ntau dua li cov khoom siv - tshwj xeeb tshaj yog qhov muaj kev txhawj xeeb txog kev kub ntxhov. Bronze 903, nrog nws qhov tshwj xeeb muaj pes tsawg leeg ntawm qib siab tooj liab thiab tin, muab cov cua sov ua haujlwm zoo dua piv rau cov hlau bronze li niaj zaus. Qhov no ua rau nws zoo tagnrho rau qhov kub thiab txias xws li roj turbines ua haujlwm nyob rau hauv huab cua txias thiab industrial furnaces siv hauv peev castings thiab kev siv cua sov. Qhov zoo tshaj plaws ntawm Bronze 903 ua kom cov khoom siv tau ntev thiab kev thaj yeeb ntawm lub siab rau cov engineers, muab nws lub peev xwm los tiv thaiv qhov chaw tsis muaj kev zam txim ntau tshaj plaws.
Kev kho cua sov
Thaum tshav kub kub kho bronze yog txheej txheem siv los hloov cov khoom ntawm cov hlau. Nrog bronze 903 kev kho cua sov, kev hloov pauv yog ua nyob rau hauv chav tsev kub uas txhim kho lub zog thiab hardness ntawm cov khoom. Hloov cov qauv hlau ua rau thermal expansion thiab electromagnetic tsis ruaj khov thaum txo cov hlau qaug zog. Cov txheej txheem kev kho cua sov tuaj yeem cuam tshuam zoo rau bronze cov ntawv siv tshuab, txo qis hnav, ncua cov khoom lag luam thiab txhim kho kev ntxhov siab. Qhov no ua rau kev kho cua sov ntawm bronze 903 yog ib feem tseem ceeb ntawm kev tsim khoom rau ntau qhov kev lag luam.
Tshuab dhos
Bronze 903 machining yog txiav, shaping thiab drilling hlau rau hauv cov qauv intricate. Siv cov tshuab tshwj xeeb thiab khoos phis tawj cov txheej txheem, metalsmiths tuaj yeem tsim cov duab zoo nkauj nrog kev ua kom zoo nkauj. Ntxiv nrog rau nws cov tsos zoo nkauj, Bronze 903 machining muaj lub zog zoo dua thiab ua haujlwm ntev rau kev siv hnyav. Nws kuj yog ib qho kev xaiv pheej yig dua li lwm hom hlau ua haujlwm vim nws qhov hnyav dua thiab kev tsim khoom ntau dua. Rau cov neeg tab tom nrhiav kev daws teeb meem zoo rau lawv qhov project machined tom ntej, Bronze 903 yeej tsim nyog xav txog.
Vuam
Bronze welding yog ib hom txheej txheem vuam siv los koom nrog ob daim ntawm tooj liab los ntawm cua sov thiab yaj cov hlau. Bronze 903 welding yog ib daim ntawv muaj zog tshwj xeeb ntawm cov txheej txheem no, uas siv cov cuab yeej yooj yim lossis cov cuab yeej tshwj xeeb thiab cov teeb ci tshwj xeeb los tsim kom muaj kev ruaj ntseg ntawm ob daim. Hom vuam no yog siv rau hauv cov roj thiab roj ntau lawm, kev siv aerospace, nuclear fais fab nroj tsuag, thiab lwm yam kub kub uas yuav tsum tau muaj zog; nws kuj muaj ntau hom kev siv hluav taws xob. Cov neeg ua haujlwm txawj ntse tuaj yeem ua tiav cov welds zoo siv cov txheej txheem siab heev xws li muab cov khoom tso nrog cov xaim txuas txuas ntxiv. Kev siv bronze 903 vuam muab cov neeg siv nrog ob qho tib si cov khoom sib txuas thiab cov txheej tiv thaiv vim yog cov khoom ntawm cov hlau thaum fusion vuam. Nws yog ib txoj hauv kev zoo rau kev ua tiav cov kev sib txuas muaj zog uas tuaj yeem siv tau rau ntau xyoo hauv kev sib tw kev lag luam ib puag ncig.
