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Tsev > Kev paub > Paub meej
Nov 28, 2025 Tso lus

Kev txhais ntawm tooj liab -Nickel Alloy

1. Kev txhais ntawm tooj liab-Nickel Alloy

A tooj liab-nickel (Cu-Ni) alloyyog ib tug binary los yog multi-cov khoom alloy feem ntau muaj xws li tooj liab (Cu) thiab npib tsib xee (Ni), feem ntau nrog me me ntxiv ntawm lwm cov ntsiab lus (xws li, hlau, manganese, zinc) los txhim kho cov khoom tshwj xeeb. Nickel yog soluble tag nrho hauv tooj liab, tsim cov khoom siv sib xyaw ua ke zoo tshaj plaws ductility, thermal conductivity, thiab corrosion kuj ntawm tooj liab nrog lub siab zog, toughness, thiab oxidation tsis kam ntawm npib tsib xee.
Cov yam ntxwv tseem ceeb ntawm Cu-Ni alloys suav nrog:

Superior corrosion kuj, tshwj xeeb tshaj yog nyob rau hauv dej ntsev, dej brackish, thiab industrial corrosive ib puag ncig.

Zoo heev thermal thiab hluav taws xob conductivity (tsawg dua tooj liab ntshiab tab sis siab dua lwm yam alloys).

Cov khoom siv zoo (lub zog, toughness) tshaj qhov kub ntau (-200 ° C txog 400 ° C).

Kev tiv thaiv rau biofouling (txo qis cov kab mob marine txuas hauv marine applications).

2. Puas yog tooj liab -Nickel Alloy zoo ib yam li tooj liab dawb?

Yog lawm, tooj liab -nickel alloy feem ntau hu ua "dawb tooj liab" (Bai Tong hauv Suav). Lub npe "dawb tooj liab" muab los ntawm nws cov silvery -dawb tsos, uas txawv nws ntawm liab tooj liab (ntshiab tooj liab) thiab tooj dag (tooj liab -zinc alloy).
Txawm li cas los xij, nws tseem ceeb heev uas yuav tsum nco ntsoov:

Ib txwm siv tooj liab dawb feem ntau muaj tooj liab thiab npib tsib xee (xws li Cu-Ni 10%, Cu-Ni 30%).

Qee cov qauv "dawb tooj liab" niaj hnub no tuaj yeem suav nrog me me ntawm zinc, hlau, lossis manganese los txhim kho kev ua haujlwm lossis kev tiv thaiv corrosion (xws li Cu-Ni-Zn alloys, kuj hu ua "nickel silver," tab sis cov nyiaj npib tsib xee yog technically ib hom dawb tooj liab nrog zinc ntxiv).

Hauv cov ntsiab lus, "tooj liab-nickel alloy" yog cov ntsiab lus kev, thaum "dawb tooj liab" yog lub npe siv hauv kev lag luam thiab lub neej txhua hnub, thiab lawv yog cov khoom siv tib yam.
info-441-439info-443-450
info-443-450info-443-443

3. Cov Qib Cob Qhia ntawm tooj liab-Nickel Alloys

Copper-nickel alloys yog tus qauv thoob ntiaj teb, nrog cov qib sib faib los ntawm lawv cov ntsiab lus nickel thiab cov khoom siv ntxiv. Hauv qab no yog cov qib siv dav tshaj plaws, nrog rau lawv cov qauv tsim thiab cov ntsiab lus tseem ceeb:
Qib (Common Name)International Standard DesignationNickel Cov ntsiab lus (%)Ntsiab Additives (%)Tej kev siv
Cu-Ni 10 (10% Nickel Silver)UNS C70600 (ASTM) / EN 12165: CuNi10Fe1Mn (EU)9.0–11.0 NwsFe: 0.8–1.5; Qhov hnyav: 0.5-1.0Marine piping, heat exchangers, condensers, nkoj hull fittings, seawater li qub.
Cu-Ni 30 (30% Nickel Silver)UNS C71500 (ASTM) / EN 12165: CuNi30Fe1Mn (EU)29.0–33.0 NwsFe: 0.8–1.5; Qhov hnyav: 0.5-1.0Offshore platforms, desalination nroj tsuag, tshuaj ua khoom siv, siab -siab seawater systems.
Cu-Ni 5 (5% Nickel Silver)UNS C70400 (ASTM) / EN 12165: CuNi5Fe (EU)4.0–6.0 NwsFe: 0.3-1.0Tsawg- cov ntawv thov hauv hiav txwv, cov khoom siv hluav taws xob, cov khoom siv kho kom zoo nkauj.
Cu-Ni-Zn 15-20 (Nickel Silver 15-20)UNS C75200 (ASTM) / EN 12164: CuNi15Zn20 (EU)14.0–16.0 NwsZn: 18.0–22.0; Pb: ≤0.05Cov khoom zoo nkauj, cov hniav nyiaj hniav kub, cov cuab yeej suab paj nruag, corrosion-resistant fasteners.
Cu-Ni 20 (20% Nickel Silver)UNS C72200 (ASTM) / EN 12165: CuNi20FeMn (EU)18.0-22.0 NwsFe: 1.0–2.0; Qhov Loj: 1.0-2.0Thaum tshav kub kub exchanger raj, marine propeller shafts, tshuaj kev lag luam li qub.

Cov Lus Qhia Ntxiv rau Cov Ntawv Thov Kev Lag Luam

UNS (Unified Numbering System)Cov qib tau siv dav hauv North America thiab kev lag luam thoob ntiaj teb (xws li, C70600 yog qib nrov tshaj plaws rau kev siv dej hiav txwv).

EN (European Norm)qib yog tus qauv hauv EU thiab ntau lub khw muag khoom xa tawm.

Rau siab - qhov chaw corrosion (piv txwv li, dej hiav txwv nrog cov ntsiab lus sulfur), qib siab dua nickel cov ntsiab lus (piv txwv li, C71500) yog qhov zoo dua vim lawv cov kev tiv thaiv zoo rau pitting thiab crevice corrosion.

 

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