Kusanthula ntchito kwa bimetallic sheet mu thermal protector

Chinthu chofunika kwambiri pa nkhaniyikutentha chitetezondi bimetal. Lero, ndikutengerani kuti mumvetsetse kugwiritsa ntchito bimetal muchitetezo chamafuta.

Udindo wa pepala bimetal mu chitetezo matenthedwe mtetezi ndi: pamene kutentha kusintha, chifukwa coefficient kufutukuka kwa mkulu mbali ya kukula kwa bimetal ndi apamwamba kwambiri kuposa coefficient kukulitsa kwa mbali otsika kutambasuka, kupindika kumachitika, ndipo timagwiritsa ntchito kupindika uku. ntchito. mukutentha chitetezo.

The otentha bimetallic yaiwisi opanga zosiyanasiyana kwenikweni chimodzimodzi, masanjidwewo ndi chitsulo ndi kasakaniza wazitsulo zamkuwa, ndi zinthu monga faifi tambala ndi manganese anawonjezera kusintha makulidwe awo coefficients, chifukwa mkulu-kukulitsa mbali ndi otsika-kukulitsa mbali kaloyi, ndi kenako kompositi. Master alloys nthawi zina amawonjezeredwa kuti asinthe resistivity ya zinthu.

Asanayambe kusonkhanitsakutentha chitetezo, kupanga mapepala a bimetallic ndi sitepe yovuta kwambiri. Choyamba, mzere wotentha wa bimetallic umakhomeredwa ndikutsekedwa mu mawonekedwe a pepala, ndiyeno umapangidwa kale kukhala mawonekedwe a disc. Panthawi imeneyi, mbale yoboola pakati matenthedwe bimetal ali ndi chokhazikika kanthu ndi Bwezerani kutentha. Waukulu magawo a bimetals kuti ayenera kuganiziridwa pamaso kukhomerera: enieni kupinda, zotanuka modulus, kuuma, dimensional kulondola, resistivity, ntchito kutentha osiyanasiyana. Choyamba ganizirani kutentha komwe pepala la bimetal lingagwiritsidwe ntchito, ndiyeno ganizirani mphamvu ndi torque ya zomwe bimetal iyenera kupanga, ndikusankha njira yoyenera yopindika ndi zotanuka modulus. Kenako sankhani kukula, kuuma ndi zotanuka modulus ya otentha bimetal oyenera akamaumba ndondomeko ndi zipangizo. Kenaka sankhani resistivity yoyenera malinga ndi zomwe zikuchitika panopa za chitetezo ndi zotsatira za kutentha kwa mpweya.

Malingana ndi bimetal's current thermal effect formula Q = ∫t0I2Rdt, zikhoza kudziwika kuti kusankha bimetal ndi kukana kwakukulu kumapanga kutentha kwambiri, kuchepetsa nthawi yogwiritsira ntchito chitetezo cha kutentha, ndi kuchepetsa ntchito yocheperapo. Chosiyana ndi chowonadi cha bimetals ndi kukana kochepa. Kukaniza kwa bimetal kumakhudzidwa ndi resistivity, kukula ndi makulidwe a mawonekedwe.