Cov kab nrib pleb hauv cov ntaub ntawv kub dhau yuav tsis kho tus kheej vim tias qhov kev puas tsuaj tsis tuaj yeem tshwm sim sab hauv, xws li oxidation ciam teb, voids, lossis hauv zos melting. Kev ncaj ncees ntawm cov khoom siv tau raug rhuav tshem tag nrho thiab tsis tuaj yeem rov qab los ntawm cov txheej txheem ntuj tsim.
1. Vim li cas cov kab nrib pleb tsis tuaj yeem kho nws tus kheej?
Tsis muaj atomic diffusion tsav quab yuam: Nyob rau hauv chav tsev kub, hlau atoms tsis tshua muaj spontaneous dynamic diffusion, tsis muaj peev xwm sau grain ciam teb voids los yog kaw cov kab nrib pleb.
Oxides cuam tshuam kev sib raug zoo: Kev sib txuas oxide txuas ntxiv (xws li FeO, Cr₂O₃) tsim ntawm cov ciam teb ntawm lub cev cais cov hlau matrix, tiv thaiv kev sib txuas ua ke.
Residual stress exacerbating cracking: Lub sij hawm ntev - muaj qhov seem ntawm kev ntxhov siab tom qab welding yeej txhawb kev tawg qeeb qeeb dua li kaw.
Kev pom zoo rau kev tshawb fawb: "Tus kheej- kho" ntawm cov khoom siv hlau tsuas yog tau pom nyob rau hauv ob peb lub alloys nyob rau hauv cov xwm txheej hnyav (xws li kub siab heev, kev kub ntxhov, lossis ib puag ncig neutron irradiation) thiab tsis muaj nyob rau hauv ib txwm ua haujlwm.
2. Txoj kev hloov pauv ntawm cov kab nrib pleb yog qhov tsis zoo tas mus li.
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Cov theem |
Evolution tshwm sim |
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Static Storage |
Cov dej noo nkag mus rau hauv cov kab nrib pleb ua rau corrosion, accelerating grain ciam deterioration. |
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Kev pab cua sov |
Thermal cycling ua rau muaj kev ntxhov siab dua, ua rau maj mam tawg tawm. |
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Load Bearing |
Txawm tias me ntsis siab los yog kev vibration tuaj yeem ua rau tawg sai sai. |
Tiag -Cov ntaub ntawv ntiaj teb: Cov pwm uas tau kub dhau thiab kho los ntawm vuam tau tso tseg tsis siv rau hauv lub tsev khaws khoom uas ib puag ncig cov av noo ua rau tawg thiab xeb.
3. Lo lus teb kom raug: Tsis txhob cia siab rau "tus kheej- kho"; Cov kev ntsuas uas tsim nyog yog tsim nyog.
Kev Txiav Txim Tam Sim No: Thaum pom qhov tawg, tsis hais qhov loj me, yuav tsum tau siv.
Direct Scrap: Cov khoom siv overheated tsis muaj nqi kho; Kev siv txuas ntxiv ua rau muaj kev nyab xeeb tseem ceeb.
Hloov nrog Cov Khoom Tshiab: Remanufacture siv los tiv thaiv- cov ntaub ntawv loj hlob xws li H13+Ti lossis PM-H13.
Txhim khu kev tiv thaiv: Kev tswj qhov kub thiab txias (H13 steel Tsawg dua lossis sib npaug li 600 degree), kev ntsuas kub tsis tu ncua, thiab tsim cov ntaub ntawv ntsuas kub.
