Hlau bellows expansion pob qij txha yog cov pob qij txha uas ua raws li kev tiv thaiv cov neeg kho tshuab quab yuam xws li lub zog thrust, thermal expansion, tremors, siab surges, thiab lwm yam. Cov pob qij txha no tau muab tso rau hauv cov kav dej thiab cov kav dej nqus thiab tawm ntawm cov twj tso kua mis thiab tseem nrog cov li qub kom yooj yim tshem tawm raws li kev sib tsoo cov pob qij txha.
Hlau yeeb nkab expansion pob qij txha tau tuaj nyob rau hauv ntau hom hlau. Cov pob qij txha hlau no suav nrog hwm nickel alloy steels thiab txhua yam ntawm stainless hlau. Txhua lub yeeb nkab uas txuas ob qhov chaw sib cais yog qhov muaj kev cuam tshuam rau ntau yam kev ua, txhua yam ua rau lub siab ntawm cov yeeb nkab. Qee qhov kev ntxhov siab peb tau hais hauv qab no:
Sab hauv lossis sab nraud nyob rau hauv qhov kub thiab txias.
Qhov hnyav ntawm cov yeeb nkab thiab qhov chaw uas nws txhawb nqa
Kev txav ntawm cov yeeb nkab seem tshwm sim los ntawm kev txwv sab nraud
Thermal expansion.
