Brass yog dab tsi?
Brass yog ib qho alloy ua los ntawm kev sib xyaw ntawm tooj liab thiab zinc los tsim cov ntaub ntawv nrog ntau yam kev siv engineering. Brass muaj pes tsawg leeg muab cov hlau melting point haum rau ntau daim ntawv thov, xws li tsim nyog rau kev koom nrog siv cov txheej txheem brazing. Lub melting point ntawm tooj dag yog qis dua tooj liab nyob ib ncig ntawm 920 ~ 970 degrees Celsius nyob ntawm seb tus nqi ntawm Zn ntxiv. Brass melting point yog qis dua tooj liab vim yog ntxiv Zn. Brass alloys tuaj yeem sib txawv hauv Zn muaj pes tsawg leeg los ntawm tsawg li 5% (feem ntau hu ua Gilding Metals) mus rau ntau dua 40% raws li siv hauv machining tooj dag. Ib lo lus uas tsis tshua siv yog tooj dag bronze, qhov twg qee qhov ntxiv ntawm tin yog siv.
Dab tsi yog tooj dag siv rau
tooj dag muaj pes tsawg leeg thiab ntxiv zinc rau tooj liab nce lub zog thiab muab ntau yam ntxwv, uas ua rau cov tooj dag yog ntau yam khoom siv. Lawv yog siv rau lawv lub zog, corrosion kuj, tsos thiab xim, thiab yooj yim ntawm kev ua hauj lwm thiab koom. Ib theem alpha tooj dag, muaj txog li 37% Zn, yog cov ductile heev thiab yooj yim rau kev ua haujlwm txias, weld thiab braze. Ob theem alpha-beta brasses feem ntau yog ua haujlwm kub.
Puas muaj ntau tshaj ib qho tooj dag muaj pes tsawg leeg?
Muaj ntau ntau cov tooj dag nrog ntau qhov sib txawv thiab cov yam ntxwv ua kom haum rau cov kev siv tshwj xeeb los ntawm qib sib ntxiv ntawm zinc. Qib qis ntawm Zn ntxiv feem ntau hu ua Guilding Hlau lossis Liab Brass. Thaum cov qib siab ntawm Zn yog cov alloys xws li Cartridge Brass, Dawb Machining Brass, Naval Brass. Cov brasses tom qab no kuj muaj qhov sib ntxiv ntawm lwm cov ntsiab lus. Qhov sib ntxiv ntawm cov hlau lead rau tooj dag tau siv ntau xyoo los pab lub machinability ntawm cov khoom los ntawm inducing chip so point. Raws li qhov kev pheej hmoo thiab kev phom sij ntawm cov hlau lead tau pom tau tias nws tsis ntev los no tau hloov nrog cov khoom xws li silicon thiab bismuth kom ua tiav cov yam ntxwv zoo sib xws. Cov no tam sim no paub tias yog cov hlau lead uas tsis muaj hlau lead lossis cov hlau lead dawb.
Puas muaj lwm yam ntxiv?
Yog lawm, me me ntawm lwm cov hlau alloying kuj tseem tuaj yeem ntxiv rau tooj liab thiab tooj dag. Cov piv txwv feem ntau yog cov hlau lead rau lub tshuab- muaj peev xwm raws li tau hais los saum no, tab sis kuj muaj arsenic rau corrosion kuj rau dezincification, tin rau lub zog thiab corrosion.
Brass Xim
Raws li cov ntsiab lus zinc nce, cov xim hloov. Qhov qis Zn alloys feem ntau zoo li tooj liab hauv cov xim, thaum lub siab zinc alloys zoo li kub lossis daj.
Tshuaj muaj pes tsawg leeg
| UNS No | AS Nr | Lub Npe | BSI Nr | ISO No | JIS No | tooj liab% | Zinc% | Lead % | Lwm tus % |
| C21000 |
210 |
95/5 Gilding Hlau |
- |
CuZn 5 |
C2100 |
94.0-96.0 |
~ 5 |
<0.03 |
|
| C22000 |
220 |
90/10 Gilding Hlau |
CZ101 |
CuZn10 |
C2200 |
89.0-91.0 |
~ 10 |
< 0.05 |
|
| C23000 |
230 |
85/15 Gilding Hlau |
CZ102 |
CuZn15 |
C2300 |
84.0-86.0 |
~ 15 |
< 0.05 |
|
| C24000 |
240 |
80/20 Gilding Hlau |
CZ103 |
CuZn 20 |
C2400 |
78.5-81.5 |
~ 20 |
< 0.05 |
|
| C26130 |
259 |
70/30 Arsenical tooj dag |
CZ126 |
CuZn30As |
~C4430 |
69.0-71.0 |
~ 30 |
< 0.07 |
Arsenic 0.02-0.06 |
| C26000 |
260 |
70/30 PIB |
CZ106 |
CuZn30 |
C2600 |
68.5-71.5 |
~ 30 |
< 0.05 |
|
| C26800 |
268 |
Yellow Brass (65/35) |
CZ107 |
CuZn33 |
C2680 |
64.0-68.5 |
~ 33 |
< 0.15 |
|
| C27000 |
270 |
65/35 Hlau tooj dag |
CZ107 |
CuZn35 |
- |
63.0-68.5 |
~ 35 |
< 0.10 |
|
| C27200 |
272 |
63/37 Kev Sib Tham |
CZ108 |
CuZn37 |
C2720 |
62.0-65.0 |
~ 37 |
< 0.07 |
|
| C35600 |
356 |
Engraving tooj dag, 2% Lead |
- |
CuZn39pb 2 |
C3560 |
59.0-64.5 |
~ 39 |
2.0-3.0 |
|
| C37000 |
370 |
Engraving tooj dag, 1% Lead |
- |
CuZn39pb1 |
~C3710 |
59.0-62.0 |
~ 39 |
0.9-1.4 |
|
| C38000 |
380 |
Tshooj tooj dag |
CZ121 |
CuZn43pb3 |
- |
55.0-60.0 |
~ 43 |
1.5-3.0 |
Aluminium 0.10-0.6 |
| C38500 |
385 |
Dawb Txiav Brass |
CZ121 |
CuZn39 Pb 3 |
- |
56.0-60.0 |
~ 39 |
2.5-4.5 |
Cov tooj dag feem ntau siv rau lawv cov tsos
| UNS No | Lub Npe | Xim |
| C11000 |
ETP tooj liab |
Mos liab |
| C21000 |
95/5 Gilding Hlau |
Liab Xim av |
| C22000 |
90/10 Gilding Hlau |
Bronze Kub |
| C23000 |
85/15 Gilding Hlau |
Tan Kub |
| C26000 |
70/30 PIB |
Ntsuab kub |
Gilding Hlau
C22000, 90/10 Gilding hlau, muab cov xim zoo nkauj zoo nkauj nrog kev sib xyaw zoo tshaj plaws ntawm lub zog, ductility thiab corrosion kuj ntawm cov dawb Cu-Zn alloys. Nws huab cua mus rau nplua nuj xim bronze. Nws muaj peev xwm nqus tau zoo heev, thiab tiv taus pitting corrosion nyob rau hauv huab cua hnyav thiab dej ib puag ncig. Nws yog siv nyob rau hauv architectural fascias, jewellery, ornamental trim, qhov rooj kov, escutcheons, marine hardware.
Yellow tooj dag
C26000, 70/30 Brass thiab C26130, Arsenical tooj dag, muaj ductility zoo heev thiab lub zog, thiab yog cov siv tooj dag tshaj plaws. Arsenical tooj dag muaj me me ntxiv ntawm arsenic, uas zoo heev txhim kho corrosion nyob rau hauv dej, tab sis yog lwm yam zoo tib yam. Cov hlau no muaj qhov txawv xim daj daj uas feem ntau cuam tshuam nrog tooj dag. Lawv muaj qhov zoo tshaj plaws ua ke ntawm lub zog thiab ductility hauv Cu-Zn alloys, ua ke nrog zoo corrosion kuj. C26000 yog siv rau kev tsim vaj tsev, kos thiab spun ntim thiab cov duab, cov khoom siv hluav taws xob thiab cov khoom sib txuas, cov qhov rooj, cov khoom siv kav dej. C26130 yog siv rau cov raj thiab fittings hauv kev sib cuag nrog dej, suav nrog cov dej haus.
C26800, Yellow tooj dag, yog ib theem alpha tooj dag nrog cov ntsiab lus qis tshaj ntawm tooj liab. Nws yog siv qhov twg nws cov khoom sib sib zog nqus nqus thiab tus nqi qis muab qhov zoo dua. Thaum welded hais ntawm beta theem yuav tsim, txo ductility thiab corrosion kuj.
Brass nrog lwm yam
C35600 thiab C37000, Engraving tooj dag, yog 60/40 alpha-beta brasses nrog ntau theem ntawm cov hlau lead ntxiv los muab cov yam ntxwv ua haujlwm dawb. Lawv yog dav siv rau engraved daim hlau thiab plaques, builders hardware, gears. Lawv yuav tsum tsis txhob siv rau cov kua qaub etched, uas yuav tsum tau siv ib theem alpha tooj dag.
C38000, Seem tooj dag, yog ib qho yooj yim extrudable leaded alpha/beta tooj dag nrog ib qho me me txhuas ntxiv, uas muab cov xim ci ci. Cov hlau lead muab cov yam ntxwv ntawm kev txiav dawb. C38000 muaj nyob rau hauv extruded rods, raws, flats thiab ces kaum, uas feem ntau yog siv nyob rau hauv builders kho vajtse.
C38500, Dawb txiav tooj dag, yog ib daim ntawv zoo ntawm 60/40 tooj dag, nrog zoo heev dawb txiav yam ntxwv. Nws yog siv nyob rau hauv loj zus tau tej cov tooj dag Cheebtsam qhov twg ntau tshaj tawm thiab ntev lub cuab tam lub neej yuav tsum tau, thiab qhov twg tsis muaj ntxiv txias txias tom qab machining yog yuav tsum tau.
Khoom Specifications
| Specification | Daim ntawv khoom |
| TIAB SA 1566 |
Rolled tiaj cov khoom |
| TIAB SA 1567 |
Wrought rods, bars & seem |
| TIAB SA 1568 |
Forging khoom & forgings |
| TIAB SA 1569 |
Seamless raj rau cua sov exhangers |
| TIAB SA 1571 |
Seamless raj rau cua txias & tub yees |
| TIAB SA 1572 |
Seamless raj rau engineering lub hom phiaj |
| TIAB SA 1573 |
Hlau rau engineering hom phiaj |
| TIAB SA 1574 |
Hlau rau lub hom phiaj hluav taws xob |
Peb lub Hoobkas
Peb qhov kev muab khoom siv npog ntau yam ntawm cov khoom siv siab - cov khoom siv tooj liab thiab tooj liab alloy uas haum rau ntau hom kev lag luam. Peb muab precision-engineered tooj liab raj rau HVAC thiab tub yees tshuab, nplooj ntawv thiab daim hlau rau architectural cladding thiab hluav taws xob Cheebtsam, pas nrig thiab tuav rau machining thiab fabrication, xov hlau rau conductive thiab mechanical lub hom phiaj, raws li zoo raws li strips thiab foils rau hluav taws xob thiab automotive industries. Tag nrho cov khoom muaj nyob rau hauv ntau yam alloys - suav nrog ntshiab tooj liab, tooj dag, bronze, phosphor bronze, tooj liab -nickel, thiab tshwj xeeb alloys - thiab tuaj yeem muab rau hauv qhov ntau thiab tsawg lossis customized qhov ntev, tempers, thiab tiav kom tau raws li koj cov specifications.
