Zowumitsa zowumitsa ndi zowumitsa bwino kwambiri zomwe zimachotsa chinyezi kuzinthu kudzera-zotentha kwambiri. Amagwiritsidwa ntchito kwambiri m'makampani azakudya, azamankhwala, azachilengedwe komanso m'mafakitale amankhwala. Mfundo yawo yaikulu ndi kuchepetsa kutentha kwa zinthu pansi pa malo oundana m'malo opanda phokoso, kuchititsa chinyezi kuti chikhale chokhazikika kuchokera ku cholimba kupita ku mpweya, motero kupewa kuwonongeka kwa zinthu zomwe zimagwiritsidwa ntchito chifukwa cha kutentha kwambiri. Zotsatirazi zikufotokozeranso njira yogwiritsira ntchito kuchokera m'mbali zitatu: -kukonzekereratu, kachitidwe, ndi kusamala.
-Kukonzekera kwantchito
Kuyang'anira Zida: Onetsetsani kuti msampha wozizira, pampu ya vacuum, makina otenthetsera, ndi makina owongolera ali m'dongosolo labwinobwino. Onani ngati kutentha kwa msampha kwafika pamtengo woikidwiratu (nthawi zambiri kumafuna -kuzizira mpaka pansi pa -40 digirii ), ngati mulingo wa mafuta a vacuum pampu uli mkati mwa muyezo wokhazikika, komanso ngati mphete zosindikizira sizili bwino.
Kukonzekera Kwambiri: Chitani -mankhwala oundana asanazizirike molingana ndi mawonekedwe ake. Mwachitsanzo, zakudya ziyenera kuzizira pa -madigiri 30 mpaka -40 kwa maola 12-24 kuti ziziundana; zida zamankhwala zimafunikira kuzizira kozizira kuti zisawonongeke. Kusakwanira kozizira kozizira kungayambitse kugwa panthawi ya sublimation, zomwe zimakhudza ubwino wa mankhwala omalizidwa.
Kuyika ndi Kamangidwe: Falitsani zinthuzo mofanana pamatireyi azinthu, ndi makulidwe ovomerezeka a 5-10mm. Matayala angapo akuyenera kukhala ndi katalikirana (monga 38mm) kuti apewe kulepheretsa kufalikira kwa nthunzi. Pazinthu zokhala ndi zinthu zosasunthika, gwiritsani ntchito zida zonyamula zokhala ndi mpweya wabwino.
Njira Zogwirira Ntchito
Pre-gawo lozizira kwambiri: Khazikitsani kutentha kusanakhale-kuzizira (-40 digiri -50 digirii ) ndi nthawi (sinthani molingana ndi kuchuluka kwa zinthu, nthawi zambiri maola 2-4) kudzera pagulu lowongolera lanzeru. Panthawi imeneyi, onetsetsani kuti kutentha kwa msampha kumakhala kokhazikika kuti musapangike kwambiri chifukwa cha kusinthasintha kwa kutentha.
Vacuuming and Sublimation Kuyanika: Mukazizira-isanazindike, yambitsani pampu ya vacuum kuti muchepetse kuthamanga kwa makina mpaka pansi pa 10Pa (kuti musalole kuti -} musalemedwe ndi vacuum 5Pa). Panthawi imeneyi, ayezi mu nkhani akuyamba sublimate, kufuna mphamvu kuchokera conductive Kutentha dongosolo (mwachitsanzo, alumali Kutentha). Kutentha kwa kutentha kuyenera kukulitsidwa pang'onopang'ono (kuyambira pa -20 digiri, kuwonjezeka ndi madigiri 5-10 pagawo lililonse) kupewa kutenthedwa kwapadera.
Desorption Drying Stage: Pamene kutentha kwa zinthu kumayandikira kutentha kozungulira, gawo lowumitsa la desorption limayamba. Panthawiyi, mulingo wa vacuum uyenera kuchepetsedwa (mpaka pansi pa 2 Pa), ndipo kutentha kwa alumali kumawonjezeka kufika pa 30-50 digiri kuchotsa madzi otsalira. Panthawi imeneyi, chiwonetsero cha kutentha kwachitsanzo chimafunika kuyang'anitsitsa mosalekeza kuti tipewe kutentha kwambiri kuti zisawononge zinthu.
Kutseka ndi Kuyesa Zitsanzo: Mukaumitsa, choyamba muzimitsa makina otenthetsera, ndiyeno muzimitsa pampu ya vacuum kutentha kwa zinthu kutsika mpaka kutentha. Pomaliza, yambitsani kuyanika nayitrogeni kuti muphwanye vacuum ndikuchotsa zinthuzo. Pazinthu zamtengo wapatali, -ndikoyenera kuti mugwiritse ntchito -batani la defrost electric defrost function kuti chipangizochi chizibwereranso msanga.
