Ua ntej, cov kav dej roj hmab thiab yas rwb thaiv tsev siv tau los rwb thaiv tsev cov kav dej thiab cov khoom siv. Cov haujlwm rwb thaiv tsev ntawm cov kav dej roj hmab thiab yas rwb thaiv tsev yog nws lub luag haujlwm tseem ceeb, uas kuj yog lub luag haujlwm tseem ceeb txawv ntawm lwm cov ntaub ntawv. Vim tias cov thermal conductivity ntawm cov roj hmab thiab yas rwb thaiv tsev qis, nws tsis yooj yim rau kev coj hluav taws xob. Nws tsis tsuas yog rwb thaiv tsev cua sov xwb tab sis kuj rwb thaiv tsev txias. Nws tuaj yeem xauv lub zog cua sov hauv cov kav dej, uas muaj cov nyhuv rwb thaiv tsev zoo. Nws ua lub luag haujlwm tseem ceeb hauv kev tswj hwm qhov ruaj khov ntawm qhov kub ntawm dej txias. Rau qee cov kav dej sab nraum zoov, tshwj xeeb tshaj yog thaum lub caij ntuj no, qhov kub sab nraum zoov qis heev. Yog tias cov kav dej tsis rwb thaiv tsev, cov dej hauv cov kav dej yuav khov, cuam tshuam rau kev ua haujlwm ib txwm ntawm cov khoom siv. Yog li ntawd, nws yog qhov tsim nyog los npog cov kav dej no nrog cov kav dej roj hmab thiab yas rwb thaiv tsev kom rwb thaiv tsev cov dej ntws hauv cov kav dej, tswj qhov kub thiab tiv thaiv cov dej ntws los ntawm kev khov.
Qhov thib ob, cov kav dej roj hmab thiab yas rwb thaiv tsev siv tau los tiv thaiv cov kav dej thiab cov khoom siv. Peb paub tias cov kav dej roj hmab thiab yas rwb thaiv tsev yog mos thiab ywj. Thaum nws siv rau cov khoom siv thiab cov kav dej, nws tuaj yeem ua lub luag haujlwm tiv thaiv thiab nqus kev co kom tiv thaiv cov khoom siv thiab cov kav dej kom tsis txhob raug puas tsuaj los ntawm cov zog sab nraud. Tsis tas li ntawd, cov kav dej roj hmab thiab yas rwb thaiv tsev tuaj yeem tiv taus cov kua qaub thiab alkali, thiab qee cov kua qaub thiab alkali hauv huab cua yuav tsis muaj kev cuam tshuam loj rau nws, yog li tiv thaiv cov khoom siv thiab cov kav dej los ntawm kev xeb ntawm cov tshuaj no. Cov kav dej roj hmab thiab yas rwb thaiv tsev kuj tuaj yeem tiv taus dej thiab noo noo, uas tuaj yeem tiv thaiv cov khoom siv thiab cov kav dej los ntawm kev cuam tshuam ntawm ib puag ncig noo noo, ua kom lawv qhuav ntev thiab ntev lawv lub neej kev pabcuam.
Qhov thib peb, cov yeeb nkab roj hmab thiab yas rwb thaiv tsev tuaj yeem ua lub luag haujlwm zoo nkauj hauv cov yeeb nkab thiab cov khoom siv. Cov yeeb nkab roj hmab thiab yas rwb thaiv tsev muaj qhov zoo nkauj thiab tiaj tus thiab zoo nkauj tag nrho. Nws tuaj yeem ua lub luag haujlwm zoo nkauj rau cov khoom siv thiab cov yeeb nkab, tshwj xeeb tshaj yog qee cov yeeb nkab roj hmab thiab yas xim, uas tuaj yeem hloov kho rau ib puag ncig. Tsis tas li ntawd, yog tias cov yeeb nkab thiab cov khoom siv zoo li puas lawm, cov yeeb nkab roj hmab thiab yas rwb thaiv tsev raug siv los npog lawv, uas yuav ua rau lawv zoo nkauj tam sim ntawd.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-24-2022
