Cov kab nrib pleb nyob rau hauv cov ntaub ntawv overheated propagated sai heev tom qab vuam, muaj peev xwm qhia propagation tseem ceeb nyob rau hauv lub sij hawm lub sij hawm txias los yog thawj zaug kev pab cuam lub neej. Lub sijhawm tshwj xeeb yog nyob ntawm qhov kev ntxhov siab seem, qhov kub thiab txias, thiab ib puag ncig yam.
1. Lub Sijhawm Tshaj Tawm Tshaj Tawm thiab muaj feem cuam tshuam
Theem Propagation Rate Qhov Tseem Ceeb Tsav Tsheb
Vuam Txias txheej txheem feeb mus rau teev Thermal stress tso ua rau sai intergranular tawg propagation.
Nyob ruaj ruaj Teev Sijhawm mus rau Hnub Nqus Nroj Tsuag ua rau muaj kev tiv thaiv corrosion, ua kom cov nplej ciam teb tsis zoo.
Kev Pabcuam Cua sov/Cycles Nruam propagation nrog txhua lub voj voog Thermal fatigue stress ua rau cov tawg kom maj mam lengthen thiab tob.
Mechanical Loading Sudden, instantaneous fracture Txawm tias me ntsis siab los yog kev co tuaj yeem ua rau tawg nrawm nrawm.
Tiag -Cov ntaub ntawv ntiaj teb: Hauv H13 steel overheating kho vuam, 70% ntawm cov kab nrib pleb tau nthuav tawm ntau dua 50% ntawm lawv qhov ntev ntev hauv 24 teev tom qab- vuam, nrog qee qhov nkag mus rau qhov vuam ua ntej txias rau hauv chav tsev kub.
2. Cov xwm txheej tseem ceeb rau kev nthuav tawm nrawm nrawm
High Temperature Environment: When the operating temperature is >400 degree, atomic diffusion intensifies, nce tawg propagation ceev los ntawm 3-5 zaug;
High Humidity: noo noo nyob rau hauv cov huab cua nkag mus rau hauv cov kab nrib pleb, tsim oxidation corrosion thiab tsis muaj zog grain ciam teb;
Nquag Pib- nce thiab kaw: Rov ua cua sov thiab txias ntawm qhov kub khiav qhov system ua kom nrawm nrawm nrawm vim qhov kub thiab txias;
Kev vibration lossis kev sib hloov siab: Cov khoom siv hluav taws xob thaum lub sijhawm tsim khoom muab kev tsav tsheb ntxiv rau kev tawg tawm.
Kev Ceeb Toom Tshwj Xeeb: Thaum kuaj pom qhov tawg, ib tus yuav tsum tsis txhob poob siab thiab xav tias lub kaw lus siv tau ib ntus. Kev nthuav tawm tawg yog tam sim ntawd thiab tswj tsis tau.
3. Cov lus pom zoo teb
Txwv tsis pub siv: Ib qho khoom siv tau lees paub tias tau kub dhau thiab welded, txawm tias tsis muaj cov kab nrib pleb, yuav tsum tau suav tias yog ib qho kev pheej hmoo siab.
Kev Hloov Tam Sim No: Remanufacture siv los tiv thaiv- cov ntaub ntawv loj hlob xws li H13+Ti lossis PM-H13.
Tsim kom muaj Kev Tiv Thaiv Mechanism: Kev tswj qhov kub thiab txias (H13 steel Tsawg dua lossis sib npaug li 600 degree), kev saib xyuas ob lub thermocouple, thiab kev kuaj xyuas cov hlau tsis tu ncua.
Txoj Cai Tswjfwm Ntiag Tug: Kev nthuav tawm tawg yog qhov tsis tuaj yeem thim rov qab thiab nyuaj rau kwv yees; tib qhov kev ntsuas txhim khu kev qha yog kev tiv thaiv ntxov thiab hloov raws sijhawm.
