Dab tsi yog ustenitic intergranular corrosion thiab yuav ua li cas undeviate nws

Yog tias cov chaw tsim khoom yuav tsum tau txhim kho cov raj xa khoom zoo, tom qab ntawd kev sib tshuam corrosion yog qhov teeb meem kom kov yeej hauv cov txheej txheem txheej txheem txua lawm.

Peb yuav ua tib zoo nrhiav tau hom tsis pom kev ntawm corrosion kev puas tsuaj hu ua corrosion (IGC) kom nkag siab yuav ua li cas intergrani corrosion tshwm sim thiab yuav ua li cas txheeb xyuas thiab txo kev puas tsuaj.

Dab tsi yog intergranular corrosion?

Nyob rau hauv cov ntaub ntawv txuj ci, intergranular corrosion (icc), tseem muaj kev sib tshuam ntawm corrosion (iga), yog ib qho chaw ntawm crystallites ntawm cov khoom siv tau ntau dua rau kev xeb ntau dua li lawv sab hauv. Intergranular corrosion (tseem hu ua Weld Dece) cuam tshuam rau stainless hlau ntawm qib kev puas tsuaj kom txog thaum corrosion tau ua kom tiav. 

Vim li cas ho cuam tshuam corrosion tshwm sim?

Nyob rau hauv luv luv, intergranular corrosion yog tsim los ntawm vuam ntawm cov kav dej, kho kom sov tsis tu ncua, thiab 870 degrees Celsius. 

Thaum cov hlau tso rau hauv qhov ntsuas kub ntawm qhov no, nws hloov ntawm theem kev teeb tsa. Cov chromium tam sim no nyob rau hauv alloy reacts nrog pa roj carbon los tsim cov chromium carbide nyob ze ntawm cov ciaj ciam teb. Qhov kev ua si carbide no tseem hloov cov ciaj ciam rau hauv lub hlwb anode. Crystal hais hauv lub Cathode hlwb, thiab corrosion pib.

Cov hau kev kom mitigate intergranular corrosion?

Kev kho mob thermal feem ntau tuaj yeem daws cov teeb meem, coj tus qauv hlau rov qab mus ze ntawm lub xeev qub.

Annealing lossis quenching yog ib txoj kev zoo rau reversing corrosion kev puas tsuaj hauv Austenitic steel.

Cov txheej txheem no ua kom sov cov hlau rau ntawm 1060 ℃ thiab 1120 ℃. Thaum cua sov, cov yeeb nkab stainless hlau yog rhaub, ua kom txias sai kom txias rau cov nplej thiab cov qauv. Qhov no yog ib txwm siv hauv kev lag luam siab welded yeeb nkab ntau lawm.

Yog li peb tau mus li cas?

On-line txhim kho & fusing (anealing (analing (kev tiv thaiv tus kheej hluav taws xob ua kom sov dua 100 ° C Tom qab ntawd DSP Ua tau zoo nrog lub zog txuag thiab cov khoom pov tseg tsawg dua.

Yog xav paub ntxiv, pleasr Nyem ntawm no: Hluav Taws Xob-Powered Stainless Hlau Tubing Bright Annealing Rauv