Muaj ob lub ntsiab ntawm hluav taws xob cua sov alloys:

Muaj ob lub ntsiab ntawm hluav taws xob cua sov alloys:

Ib hom hluav taws xob rhaub yog hlau chromium aluminium alloy nrog ferrite qauv; Lwm hom yog nickel chromium alloy nrog austenitic qauv. Ob hom alloys no muaj cov khoom sib txawv vim lawv cov microstructures sib txawv. Tab sis raws li cov khoom siv hluav taws xob cua sov, lawv txhua tus muaj ntau yam zoo, yog li lawv tau tsim thiab siv ntau lub teb chaws.

1, Cov yam ntxwv ntawm hlau chromium txhuas hluav taws xob cua sov alloy:

1. Siv qhov kub thiab txias hauv qhov chaw

Qhov siab tshaj plaws kev khiav hauj lwm kub ntawm HRE alloy nyob rau hauv hlau chromium txhuas hluav taws xob cua sov alloy yuav ncav cuag 1400 degree, thaum lub siab tshaj plaws kev khiav hauj lwm kub ntawm Cr20Ni80 alloy nyob rau hauv nickel chromium hluav taws xob cua sov alloy yog 1200 degree.

2. Lub neej ua haujlwm ntev

Nyob rau tib lub sijhawm ua haujlwm kub hauv huab cua, lub neej ntev ntawm cov hlau chromium txhuas cov khoom tuaj yeem yog 2-4 npaug ntawm cov khoom nickel chromium.

3. High deg load

Vim tias qhov kub thiab txias thiab kev pab lub neej ntev ntawm cov hlau chromium aluminium alloy, qhov saum npoo ntawm cov khoom tseem tuaj yeem siab dua, uas tsis tsuas yog tso cai rau cua sov sai dua tab sis kuj txuag cov ntaub ntawv alloy.

4. Kev ua haujlwm zoo antioxidant

Lub al2o3 cov yeeb yaj kiab oxide tsim nyob rau saum npoo ntawm cov hlau chromium alloy muaj cov qauv ua kom zoo, thiab tsis yooj yim rau kev tawg thiab ua kom muaj kuab paug vim ntws dej. Tsis tas li ntawd, lub siab hluav taws xob tiv thaiv thiab melting point ntawm Al2O3 txiav txim siab tias Al2O3 oxide zaj duab xis muaj oxidation zoo heev. Cov kev ua haujlwm tiv thaiv carburizing kuj zoo dua li Cr2O3 tsim rau saum npoo ntawm nickel chromium alloy.

5. Me me lub ntiajteb txawj nqus

Qhov tshwj xeeb lub ntiajteb txawj nqus ntawm hlau chromium aluminium alloy yog me dua li ntawm nickel chromium alloy, uas txhais tau hais tias siv hlau chromium aluminium los ua cov khoom sib npaug yog cov khoom siv ntau dua li siv cov nickel chromium.

6. Muaj hluav taws xob tiv taus

Cov hluav taws xob tiv thaiv ntawm hlau chromium aluminium alloy yog siab dua li ntawm nickel chromium alloy. Thaum tsim cov khoom siv, cov khoom siv tshwj xeeb loj dua tuaj yeem xaiv tau, uas yog qhov zoo rau kev ua haujlwm ntev ntawm cov khoom siv. Qhov no yog qhov tseem ceeb tshwj xeeb rau cov hlau hlau zoo.

7. Zoo sulfur tsis kam

Hlau, chromium, thiab txhuas muaj kev tiv thaiv corrosion zoo thaum raug cov huab cua uas muaj sulfur thiab cov chaw uas muaj cov tshuaj sulfur, thaum npib tsib xee thiab chromium raug corroded hnyav heev.

8. Tus nqi pheej yig

Hlau chromium txhuas yog pheej yig dua li nickel chromium vim nws tsis muaj tsawg nickel.

9. Lub ntsiab tsis zoo ntawm cov hlau chromium aluminium alloy yog nws lub zog qis-kub kub. Raws li qhov kub thiab txias, lub plasticity ntawm hluav taws xob cua sov raj nce, ua rau deformation ntawm cov khoom.

2, Cov yam ntxwv ntawm nickel chromium hluav taws xob cua sov alloy

1. Lub zog kub kub

Vim nws lub zog kub siab dua li cov hlau chromium aluminium, nickel chromium alloy tsis tshua muaj kev deformation thaum siv kub, thiab muaj ntau yam kev xaiv rau kev tivthaiv layout.

2. Tom qab siv mus ntev, nws cov plasticity tseem zoo

Tom qab siv mus ntev, nickel chromium alloy yuav tsis nkig tom qab txias, yog li cov khoom cua sov siv tau ntau dua thiab yooj yim kho yog tias puas.

3. Siab emissivity

Tus nqi hluav taws xob ntawm tag nrho oxidized nickel chromium alloy yog siab dua li ntawm cov hlau chromium aluminium alloy. Yog li ntawd, thaum lub load saum npoo yog tib yam, qhov kub ntawm nickel chromium alloy Cheebtsam yog qis dua li ntawm cov hlau chromium aluminium.

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