Hlau corrosion yog hais txog kev puas tsuaj ntawm cov hlau uas ua los ntawm cov tshuaj lom neeg los yog electrochemical kev ua ntawm ib puag ncig nruab nrab, thiab feem ntau ua ke nrog lub cev, mechanical lossis biological yam, uas yog, kev puas tsuaj ntawm cov hlau nyob rau hauv qhov kev txiav txim ntawm nws ib puag ncig.
Cov hom hlau corrosion ntawm phaj kub exchanger yog raws li nram no:
Uniform corrosion nyob rau hauv tag nrho cov nto raug rau nruab nrab, los yog nyob rau hauv ib tug loj cheeb tsam, lub macro uniform corrosion puas yog hu ua uniform corrosion.
Crevice corrosion Hnyav crevice corrosion tshwm sim nyob rau hauv lub crevices thiab npog qhov chaw ntawm cov hlau nto.
Tiv tauj corrosion Ob hom hlau los yog alloy nrog sib txawv muaj peev xwm sib cuag ib leeg, thiab immersed nyob rau hauv electrolyte solutive tov, muaj ib tug tam sim no ntawm lawv, corrosion tus nqi ntawm zoo hlau tej zaum yuav txo, tus nqi corrosion tsis zoo hlau tej zaum yuav nce.
Erosion corrosion Erosion corrosion yog ib hom kev txhim kho corrosion uas ua rau cov txheej txheem corrosion vim yog qhov sib txheeb ntawm qhov nruab nrab thiab cov hlau nto.
Selective corrosion Qhov tshwm sim uas cov khoom nyob rau hauv ib qho alloy yog corroded rau hauv nruab nrab yog hu ua xaiv corrosion.
Pitting corrosion concentrated ntawm tus kheej me me ntawm cov hlau ntawm qhov tob ntawm corrosion yog hu ua pitting corrosion, los yog pore corrosion, pitting corrosion.
Intergranular corrosion Intergranular corrosion yog ib yam ntawm corrosion uas nyiam corrodes lub grain ciam teb thiab cheeb tsam ze ntawm lub grain ciam teb ntawm ib tug hlau los yog alloy, thaum lub grain nws tus kheej yog tsawg corroded.
Kev puas tsuaj hydrogen Kev puas tsuaj ntawm cov hlau hauv cov tshuaj electrolyte los ntawm hydrogen infiltration tuaj yeem tshwm sim los ntawm corrosion, pickling, cathodic tiv thaiv, los yog electroplating.
Stress corrosion fracture (SCC) thiab corrosion qaug zog yog cov khoom tawg los ntawm kev sib koom ua ke ntawm corrosion thiab tensile stress nyob rau hauv ib co hlau- nruab nrab system.
Post lub sij hawm: Aug-20-2022