Vim li cas cov plag tsev ntoo yuav tsum tau nruab cov nplais ntug trims?
Vim hais tias cov thermal expansion thiab contraction ntawm hauv pem teb yuav tsum txaus expansion thiab contraction qhov chaw, uas muaj peev xwm tiv thaiv lub ntug ntawm hauv pem teb los ntawm hnav thiab tsim kua muag, thiab ua si lub luag hauj lwm ntawm kev sib txuas thiab kev tiv thaiv. Kuj tseem tiv thaiv cov npoo hauv pem teb los ntawm kev hnav thiab tsim kua muag, feem ntau yog koom nrog thiab tiv thaiv cov plag tsev ntoo.
Lub luag haujlwm tseem ceeb ntawm kev kaw sawb ntawm cov ntoo hauv pem teb yog txuas rau hauv pem teb sab nraum lub qhov rooj ntawm lub qhov rooj thiab ua lub luag haujlwm hloov pauv. Nws yog siv los npog cov npoo tsis sib xws ntawm hauv pem teb vim txiav. Feem ntau, qhov kim tshaj plaws kaw sawb yog tooj dag, ua raws li stainless hlau thiab aluminium alloy. Tus nqi qis zoo li cov yas zoo tib yam, tab sis nws yooj yim rau ploj thiab tawg.