Yam khoom dab tsi yog C22000 tooj liab

1. Cov khoom siv dab tsi yog C22000?

C22000, feem ntau hu ua"Kev Lag Luam Bronze"los yog"Cartridge tooj dag", yog ib tug dav sivtooj liab-zinc alloy ( tooj dag)txhais los ntawm nws cov tshuaj muaj pes tsawg leeg (≈90% tooj liab, ≈10% zinc) thiab cov khoom siv tshwj xeeb. Muab faib raws li ASTM B111 / B111M tus qauv, nws yog categorized li "alpha tooj dag" (ib zaug -theem microstructure) vim nws cov ntsiab lus zinc hauv qab 30%, uas imparts superior ductility, formability, thiab corrosion kuj piv rau siab dua -zinc brasses.

Cov yam ntxwv tseem ceeb ntawm C22000 suav nrog:

Optimal Formability: Yooj yim kos, stamped, khoov, dov, thiab brazed / welded, ua rau nws haum rau complex fabrications (xws li, sib sib zog nqus nqus, spinning).

Zoo Mechanical Strength: Sib npaug tensile zog (300-500 MPa, nyob ntawm temper) thiab ductility (elongation mus txog 60% nyob rau hauv lub xeev annealed), outperforming ntshiab tooj liab nyob rau hauv load- bearing daim ntaub ntawv.

Corrosion Resistance: Resistant tarnishing thiab me ntsis corrosion nyob rau hauv atmospheric, dej tshiab, thiab nruab nrab dej ntsev ib puag ncig; Txawm li cas los xij, nws tsis pom zoo rau cov xov xwm hnyav corrosive (xws li, muaj zog acids, ammonia) vim muaj peev xwm dezincification (zinc leaching) nyob rau hauv huab cua txias.

Tus nqi -Kev ua tau zoo: Muab lub zog zoo dua -rau- tus nqi piv dua li cov tooj liab ntshiab (xws li, C11000) los ntawm kev hloov tooj liab nrog zinc, tsis muaj qhov poob ntawm kev ua haujlwm lossis kev zoo nkauj.

C22000 yog qhov txawv ntawm lwm qib tooj dag:

Piv rau C26000 (70/30 tooj dag), nws muaj ntau dua tooj liab cov ntsiab lus, zoo ductility, thiab qis zog.

Piv rau C23000 (liab tooj dag, 85% Cu), nws muaj zinc cov ntsiab lus ntau dua, txhim kho machinability, thiab xim kub dua.

2. Qhov Xim Nto C22000 yog dab tsi?

Cov xim saum npoo ntawm C22000 tooj dag sib txawv raws linto tiav, ib puag ncig raug, thiabua lub xeev, nrog cov tsos mob hauv qab no:

2.1 Raws li -Fabricated/Annealed State

Cov txheej txheem tshiab (xws li, extruded, dov, annealed) C22000 nthuav tawmci, sov golden -dajlos yogdaj ntseg kubxim. Qhov no yog cov xim ntawm cov hlau, uas tshwm sim los ntawm cov khoom siv kho qhov muag ntawm nws cov tooj liab -zinc solid tov (≈90% Cu imparts lub suab nrov sov, thaum 10% Zn lightens lub xim rau kub).

Machined los yog polished nto muaj asiab -gloss golden tiav(zoo ib yam li 14K kub), ua rau nws nrov rau kev siv kho kom zoo nkauj thiab architectural.

2.2 Ntuj Oxidation/Tarnish

Thaum raug huab cua (oxygen + noo noo + cov pa phem), C22000 maj mam tsim cov txheej tarnish nyias, nrog cov xim evolution:

Thawj theem (1-3 lub hlis): Lub ci kub nto ploj mus rau adull golden -xim avlos yogbronze-zoo li tanRaws li nyias tooj liab oxide (Cu₂O) txheej txheej.

Qib nruab nrab (6-12 lub hlis): Nrog ntev raug, lub tarnish tob mus rau ibxim av tsauslos yoglub teeb brownish-ntsuab(sib xyaw tooj liab-zinc oxides thiab hydroxides).

Qib siab (1+ xyoo): Nyob rau hauv qhov chaw ntub dej los yog ntug hiav txwv, qhov saum npoo yuav tsim ib qho nyias nyiasntsuab patina(zoo ib yam li tooj liab dawb tab sis sib dua hauv lub suab), tab sis cov txheej txheem no qeeb dua tooj liab dawb vim yog zinc cov ntsiab lus.

2.3 Tshaj tawm -Kev kho mob / Txheej

Polished & Lacquered: Cov txheej lacquer ntshiab khaws cov xim kub kub tsis tu ncua, tiv thaiv oxidation.

Electroplated: Kev ua tiav zoo xws li npib tsib xee plating (nyiaj -dawb), chrome plating (daim iav-zoo li nyiaj), lossis kub plating (hloov kub xim) rau kev tiv thaiv corrosion los yog kev kho kom zoo nkauj.

Tshuaj Patination: Cov tshuaj tiv thaiv kev kho mob tuaj yeem tsim cov xim xws li xim av tsaus, xim ntsuab, lossis xim dub rau kev kho kom zoo nkauj lossis vaj tse (xws li, khoom siv rooj tog qub txeeg qub tes, architectural trim).

2.4 Thaum tshav kub kub-Kev kho mob

Thaum rhuab mus rau 300-500 degree, C22000 daim ntawv atsaus xim av los yog dub oxide txheej(sib tov ntawm CuO thiab ZnO) rau saum npoo. Cov txheej no tuaj yeem raug tshem tawm ntawm polishing lossis pickling kom rov qab cov xim kub qub.

info-441-451 info-445-444

info-445-444 info-448-446

3. Tshuaj muaj pes tsawg leeg ntawm C22000

Cov tshuaj muaj pes tsawg leeg ntawm C22000 yog nruj me ntsis tswj los ntawm cov qauv thoob ntiaj teb (xws li ASTM, EN, GB) kom ntseeg tau tias kev ua haujlwm zoo ib yam. Hauv qab no yog covraug thiab siab tshaj plaws muaj pes tsawg leegASTM B111 / B111M (tus qauv siv dav tshaj plaws rau C22000):

Element	Cim	Cov ntsiab lus zoo (%)	Cov ntsiab lus tso cai siab tshaj plaws (%)	Lub luag haujlwm & cuam tshuam
Tooj liab (Base Metal)	Cu	89.0–91.0	88.0–92.0	Cov khoom tseem ceeb; imparts ductility, corrosion kuj, thiab sov xim.
Zinc (Alloying Element)	Zn	9.0–11.0	8.0–12.0	Txhim kho lub zog, machinability, thiab brightens xim; tswj theem qauv (alpha tooj dag).
Coj	Pb	Tsawg dua lossis sib npaug li 0.03	0.05	Kuaj impurity; Cov hlau lead ntau dhau txo cov ductility thiab corrosion kuj.
Hlau	Fe	Tsawg dua los yog sib npaug li 0.05	0.10	impurity; txwv yog nruj kom tsis txhob txo cov formability thiab ua rau nto defects.
Tin	Sn	Tsawg dua los yog sib npaug li 0.05	0.10	Kuaj impurity; me ntsis cuam tshuam rau cov khoom nyob rau theem qis.
Nickel	Ni	Tsawg dua los yog sib npaug li 0.05	0.10	Kuaj impurity; tsis muaj kev cuam tshuam loj rau kev ua haujlwm.
Sulfur	S	Tsawg dua los yog sib npaug li 0.01	0.02	Ua phem impurity; tshaj sulfur ua rau brittleness (kub shortness) thaum ua.
Phosphorus	P	Tsawg dua los yog sib npaug li 0.01	0.02	Kuaj impurity; Tej zaum yuav txo qis conductivity tab sis muaj kev cuam tshuam tsawg heev rau cov khoom siv kho tshuab.
Lwm yam impurities (tag nrho)	-	Tsawg dua lossis sib npaug li 0.10	0.20	Cov txiaj ntsig ntawm tag nrho lwm cov ntsiab lus (xws li, antimony, arsenic, bismuth) yuav tsum tsis pub dhau qhov kev txwv no.

Yam khoom yog C22000 tooj liab