Resistance dumama evaporation tushen halaye, buƙatu da abu zabin

Juriya dumama tsarin evaporation tushen abu ne mai sauƙi, mai sauƙin amfani, mai sauƙin yi, shine mafi yawan amfani da nau'i ɗaya na tushen ƙaya. Yawancin lokaci ana kiran mutane masu samar da zafi ko jirgin ruwa.

Dumama buƙatun kayan juriya da aka yi amfani da su shine: babban zafin jiki, juriya, ƙarancin tururi a yanayin zafi mai zafi, babu wani halayen sinadarai tare da kayan membrane, baya haifar da fitar da iska da gurɓatacce. Abubuwan da aka zaɓa na juriya na dumama galibi daga ƙananan ƙarfe, kamar W, Mo, Ta da sauran kayan ko zaɓi na tsafta mai ƙarfi, graphite mai ƙarfi ko boron nitride roba mai ɗaukar hoto da sauran kayan. Wani lokaci, kuma na iya zaɓar Fe, Ni, Ni-Cr gami da Pt azaman kayan tushen ƙafe.

Daban-daban juriya dumama evaporation tushen kayayyakin gama gari (kamar Ti, Mo, C, Ta, W, da dai sauransu) na narkewa batu da tururi matsa lamba da kuma zazzabi kwana kwana ne daban-daban. Daga cikin su, tungsten ya zama mai karyewa lokacin da aka yi zafi zuwa zafin ƙanƙara saboda samfurin haɗin gwiwar dumama. Molybdenum, a gefe guda, ya bambanta da tsabta, tare da wasu sun zama masu tsinke wasu kuma ba su da kyau. Tungsten yana amsawa da tururin ruwa don samar da mahallin oxygen WO3.

Sabili da haka, lokacin da aka yi zafi tungsten a cikin ragowar tururin ruwa, kayan zafi yana ci gaba da ƙarewa. Lokacin da ragowar iskar gas ya yi ƙasa, babu asarar kayan abu da yawa, amma yana da mummunar cutar da membrane.

Yin amfani da tushen filamentary ya kamata a kula da wetting na waya mai zafi akan kayan membrane. Alal misali, zafin waya mai zafi yana tashi da sauri, kayan aikin membrane ba shi da sauƙi don narke duk kayan membrane nan da nan kuma ruwan zafi mai zafi bai isa ba. A sakamakon haka, fim ɗin da ba a narke ba zai iya fadowa daga kwandon waya. A lokaci guda kuma, hawan zafin jiki yana da sauri kuma zai haifar da kayan membrane a cikin iskar gas da aka saki da sauri, wanda zai haifar da kumfa ko splashing, sakamakon zai sa samuwar ƙananan ɗigon ruwa ya tsaya a kan substrate. Don haka, ya kamata a yi amfani da tushen filament tare da sarrafa zafin jiki.

Babban rashin lahani na kwandunan waya, coils na conical ko karkace mai karkace shine cewa adadin kayan da ke tallafawa fim ɗin ya yi ƙanƙanta, kuma wannan tushen zai sa yanayin zafin waya ya tashi yayin da adadin kayan fim ya ragu bayan an fitar da kayan fim, wanda hakan zai haifar da haɓakar iska. Wannan kuma matsala ce da ya kamata a lura da ita don tsarin shirya fim wanda ke buƙatar tsauraran matakan ƙaura.

(2) Ka'idar aiki da sifa da sifa da sifar amfani

Resistance dumama evaporation Madogararsa, a gaskiya, shi ne juriya hita shi ne yin amfani da zafi janareta ko evaporation jirgin ruwa kai tsaye kuzari, sabõda haka, na yanzu ta hanyar babban adadin Joule zafi da kuma samun high zafin jiki narke karfe film abu, sabõda haka, ta evaporation na wani irin evaporation Madogararsa.

–An fitar da wannan labarininjin shafa injin injinGuangdong Zhenhua