Dab tsi yog Core Properties ntawm C22000 tooj liab

1. Dab tsi yog Core Properties ntawm C22000?

C22000, feem ntau hu ua "Bronze Commercial Bronze" lossis "Red Brass," yogwrought tooj liab-zinc-tin alloytxhais los ntawm ASTM B152 / B152M (American Society for Testing and Materials) thiab siv dav hauv kev lag luam thiab kev lag luam. Nws cov khoom tseem ceeb yog kev sib xyaw ua ke ntawm formability, corrosion resistance, machinability, thiab nqi -effectiveness, ua rau nws haum rau ntau yam scenarios xav tau ob qho tib si kev ua tau zoo thiab pheej yig. Hauv qab no yog cov ncauj lus kom ntxaws txog nws cov yam ntxwv tseem ceeb:

ib. Zoo heev Formability & Ductility

Kev ua haujlwm txias txias: Highly ductile nyob rau hauv lub xeev annealed (elongation Ntau dua los yog sib npaug li 40%), ua kom cov txheej txheem xws li kos duab, dov, khoov, stamping, thiab sib sib zog nqus kos duab. Nws tuaj yeem tsim rau hauv cov duab nyuaj (xws li, cov raj, cov ntawv, cov xov hlau, thiab cov khoom siv precision) yam tsis muaj kev tawg.

Kub ua hauj lwm Performance: Haum rau kub forging, extrusion, thiab casting ntawm kub ntawm 700-850 degree, nrog zoo thermal stability thaum ua.

Daim Ntawv Thov Kev Pab: Zoo tagnrho rau kev tsim cov raj seamless, cov khoom siv kho kom zoo nkauj, thiab kev cai -fabricated Cheebtsam uas yuav tsum tau nruj me ntsis kam rau ua.

b. Balanced Corrosion Resistance

Ib puag ncig me me: Zoo heev tiv thaiv atmospheric corrosion, dej tshiab, thiab nruab nrab ntsev. Ib daim ntawv nyias tiv thaiv oxide zaj duab xis rau ntawm qhov chaw, tiv thaiv oxidation ntxiv.

Nruab Nrab Chemical Ib puag ncig: Resistant corrosion los ntawm qaug zog acids (xws li, acetic acid, citric acid) thiab alkalis, ua rau nws haum rau cov khoom siv tshuaj thiab cov kav dej fixtures.

Kev txwv: Tsis pom zoo rau cov dej hiav txwv los yog cov tshuaj chloride- thaj chaw nplua nuj (yuav ua rau dezincification) lossis muaj zog oxidizing acids (xws li nitric acid). Rau kev siv dej hiav txwv hnyav, naval bronze (C90700) lossis cupronickel (C71500) yog qhov nyiam.

c. Zoo Machinability & Weldability

Machineability: Rated li "zoo" (machinability Performance index ~ 60% piv rau dawb -txiav tooj dag C36000). Nws tuaj yeem tig tau yooj yim, drilled, tapped, thiab milled nrog cov cuab yeej txheem, yuav tsum tau lubrication tsawg.

Weldability: Tau tshaj txoj kev vuam, xws li TIG, MIG, brazing, thiab soldering. Ua ntej- ntxuav (kom tshem tawm cov oxides) yog pom zoo kom ua kom cov pob qij txha muaj zog, zoo ib yam.

Daim Ntawv Thov Kev Pab: Txo cov nqi tsim khoom los ntawm kev ua kom yooj yim thiab sib dhos.

d. Moderate Strength & Hardness

Lub Xeev Annealed: Tensile lub zog ntawm 270-350 MPa, Brinell hardness ntawm 65-85 HB- mos txaus rau kev tsim tab sis muaj zog txaus rau kev siv cov qauv siv.

Txias-Lub Xeev Ua Haujlwm: Lub zog thiab hardness nce nrog kev ua haujlwm txias (piv txwv li, txias- cov ntawv dov: tensile zog 400-500 MPa, hardness 100-120 HB). Nws tuaj yeem ua cua sov- kho kom rov qab ua kom muaj zog tom qab ua haujlwm txias.

Daim Ntawv Thov Kev Pab: Sib npaug zog thiab ductility, zam lub brittleness ntawm siab -lub zog alloys thaum muab txaus load- bearing muaj peev xwm.

e. Tus nqi-Kev ua tau zoo

Ua los ntawm tooj liab (≈90%), zinc (≈8–10%), thiab tin (≈1–2%)-zinc thiab tin yog tsawg heev- nqi alloying ntsiab piv rau npib tsib xee los yog txhuas, ua C22000 pheej yig dua bronze (xws li, C90700.) los yog khob.

Kev siv cov khoom siv siab vim yog qhov zoo heev formability, txo cov khib nyiab thaum ua.

f. Aesthetic Appeal

Ntuj xim: Sov reddish-xim av (dub dua li tooj dag, sib dua li tooj liab), nrog rau lub pleasing metallic luster. Nws tuaj yeem polished rau daim iav tiav los yog patinated rau kev kho kom zoo nkauj (xws li, khoom vaj khoom tsev, suab paj nruag).

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2. Cov ntsiab lus tooj liab (Cu) ntawm C22000 yog dab tsi?

Raws li ASTM B152 thiab cov qauv sib npaug thoob ntiaj teb (xws li EN 1652: 2015, GB / T 5231),tooj liab (Cu) cov ntsiab lus ntawm C22000 yog 88.0-92.0% (qhov loj me). Qhov no yog qhov tseem ceeb tshwj xeeb uas txhais tau tias nws qhov kev faib tawm yog "kev lag luam bronze" (xiav tooj liab) thiab cuam tshuam ncaj qha rau nws cov khoom tseem ceeb (xws li, corrosion resistance, ductility, thiab xim).

Cov ntsiab lus tshuaj muaj pes tsawg leeg (ASTM B152)

Txhawm rau muab cov ntsiab lus, tag nrho cov muaj pes tsawg leeg ntawm C22000 tau teev tseg hauv qab no (feem ntau, %):

Element	Yam tsawg kawg nkaus (%)	Cov ntsiab lus siab tshaj (%)	Role/Notes
Copper (Cu)	88.0	92.0	Base hlau; muab ductility thiab corrosion kuj.
Zinc (Zn)	6.0	10.0	Txhim kho lub zog thiab machinability; txo tus nqi.
Tin (Sn)	1.0	3.0	Txhim kho corrosion kuj thiab hardness; distinguishes nws los ntawm tooj dag.
Lead (Pb)	-	0.05	Kuaj impurity; txwv rau kev ua raws li ib puag ncig.
Hlau (Fe)	-	0.10	Kuaj impurity; tswj kom tsis txhob brittleness.
Nickel (Ni)	-	0.50	Kuaj impurity; cuam tshuam tsawg kawg rau kev ua haujlwm.
Lwm yam impurities (Tag nrho)	-	0.50	Ntxiv tag nrho lwm cov kab kawm (piv txwv li, sulfur, phosphorus).

Lub ntsiab lus tseem ceeb ntawm Cu Cov Ntsiab Lus

Qhov 88-92% Cu ntau kom ntseeg tau tias C22000 khaws cov ductility thiab corrosion kuj ntawm cov tooj liab ntshiab thaum tau txais txiaj ntsig los ntawm lub zog - txhim kho cov teebmeem ntawm zinc thiab tin. Yog tias cov ntsiab lus Cu poob qis dua 88%, cov hlau yuav dhau los ua corrosion tsawg dua -resistant; yog tias nws tshaj 92%, tus nqi nce ntxiv yam tsis muaj kev ua haujlwm tseem ceeb.

3. Qhov Hardness ntawm C22000 yog dab tsi?

Lub hardness ntawm C22000 nyob ntawm nwsua lub xeev (annealed, txias-ua hauj lwm, los yog cua sov-kho). Hauv qab no yog qhov tseem ceeb hardness qhov tseem ceeb (Brinell Hardness, HB) rau ASTM B152 thiab kev ua lag luam, nrog rau kev siv zog tensile rau kev siv:

Lub Xeev Ua Haujlwm	Brinell Hardness (HB)	Tensile zog (MPa)	Ntsiab Lus
Annealed (Full Soft)	65–85 HB	270–350	Qhov siab tshaj plaws ductility (elongation Ntau dua lossis sib npaug li 40%); zoo tagnrho rau kev tsim cov txheej txheem (kos duab, khoov).
Txias-Ua haujlwm (1/4 Nyuaj)	90–110 HB	380–450	Tsawg zog thiab ductility; haum rau lub Cheebtsam uas yuav tsum tau dimensional stability.
Txias-Ua haujlwm (1/2 Nyuaj)	110–130 HB	450–520	Siab zog; siv rau kev thauj khoom-cov kabmob (piv txwv li, fasteners, brackets).
Txias-Ua hauj lwm (Full Hard)	130-150 HB	520–600	Lub zog siab tshaj plaws; tsawg ductility; yuav tsum tau annealing yog tias xav tau ntxiv.
Kub-Ua haujlwm	70–90 HB	290–380	me ntsis nyuaj tshaj lub xeev annealed; siv rau cov khoom loj (piv txwv li, extruded tuav, forged fittings).

Ntxiv Hardness Metrics (rau Kev Siv)

Vickers Hardness (HV): Annealed xeev ≈70–90 HV; tag nrho lub xeev nyuaj ≈140–160 HV.

Rockwell Hardness (HRB): Annealed xeev ≈40–60 HRB; tag nrho lub xeev nyuaj ≈80–90 HRB.

Cov ntsiab lus tseem ceeb ntawm Hardness

Annealing nyhuv: Txias- ua haujlwm C22000 tuaj yeem muab tso rau ntawm 600-700℃rau 1-2 teev kom rov ua kom muaj zog thiab txo qhov tawv nqaij (rov qab mus rau lub xeev annealed).

Tswv yim tseem ceeb: Lub hardness adjustable ntau yam tso cai rau C22000 hloov mus rau ntau yam kev siv -los ntawm mos, formable nplooj ntawv rau cov hniav zoo nkauj qhov chaw mus rau ib tug nyuaj, muaj zog tuav rau structural Cheebtsam.

Cov ntsiab lus ntawm C22000 Core Information

Core Properties: Zoo heev formability, sib npaug corrosion kuj, zoo machinability/weldability, nruab nrab lub zog, nqi-effectiveness, thiab zoo nkauj thov.

Cov ntsiab lus tooj liab88.0-92.0% (ASTM B152).

Hardness: 65–150 HB (nws txawv los ntawm kev ua lub xeev: annealed → tag nrho nyuaj).