Vacuum kuwana inozivikanwawo se "vacuum pumping", zvinoreva kushandiswa kwemapombi akasiyana-siyana kubvisa mweya mukati memudziyo, kuitira kuti kudzvanywa kuri mukati menzvimbo kudonhe kusvika pasi pemhepo imwe. Parizvino, kuti uwane vacuum uye zvinowanzoshandiswa zvinosanganisira rotary vane mechanical vacuum pombi, Midzi pombi, mafuta diffusion pombi, composite molecular pombi, molecular sieve adsorption pombi, titanium sublimation pombi, sputtering ion pombi uye cryogenic pombi uye zvichingodaro. Mumapombi aya, mapombi mana ekutanga akaiswa muchikamu semapombi ekufambisa gasi (transfer vacuum pumps), zvinoreva kuti mamorekuru egasi anoramba achiyamwa mupombi yevacuum uye anoburitswa kune ekunze nharaunda kuti aone kubuda; mapombi mana ekupedzisira akaiswa mumapoka semapombi ekutora gasi (capture vacuum pumps), ayo ari molecularly condensed kana kemikari akasungirirwa pamadziro emukati meimba yekupomba kuti awane vacuum inodiwa. Mapombi ekutora gasi anonziwo mapombi asina mafuta ekutsvaira nekuti haashandise oiri sechinhu chinoshanda. Kusiyana nemapombi ekufambisa, ayo anobvisa zvachose gasi, mamwe mapombi ekubata anodzoreredzwa, achibvumira iyo yakaunganidzwa kana yakanyungudutswa gasi kuti ibudiswe zvakare muhurongwa panguva yekupisa.
Transfer vacuum pombi yakakamurwa kuita mapoka maviri makuru: volumetric uye kukurumidza kufambisa. Mapombi ekutamisa volumetric anowanzo sanganisira rotary vane mechanical pumps, liquid ring pumps, pombi dzinodzorerana uye Roots pumps; kukurumidza kutamisa vacuum pombi kazhinji inosanganisira mamolecular pombi, jet pombi, mafuta ekuparadzira pombi. Capture vacuum pombi inowanzo sanganisira yakaderera-tembiricha adsorption uye sputtering ion pombi.
Kazhinji, maitiro ekuputira akasiyana, iyo vacuum yekuputira mukamuri vacuum inofanira kusvika pamatanho akasiyana, uye mune vacuum tekinoroji, zvakanyanya kune yekumashure vacuum (inozivikanwawo se intrinsic vacuum) kuratidza mwero wayo. Iyo yekumashure vacuum inoreva vacuum yevacuum yekuputira kamuri kuburikidza nepombi yevacuum kusangana nezvinodiwa zvekuvharisa kweiyo yepamusoro vacuum, uye saizi yevacuum iyi, inonyanya kutsamira pane vacuum kupomba kugona. Vacuum yekuputira imba neayo vacuum system vacuum inogona kusvika pakakwirira vacuum inonzi muganhu vacuum (kana kudzikamisa kudzvanywa). Tafura 1-2 inodonongodza kushanda kwekumanikidza kwemamwe mapombi evacuum akajairwa uye yekupedzisira kudzvanywa kunogona kuwanikwa. Zvikamu zvine mimvuri zvetafura zvinomiririra kumanikidza kunogona kuwanikwa nepombi yega yega yevacuum kana ichishandiswa pamwe chete nemimwe michina.
-Chinyorwa ichi chakaburitswa navacuum coating machine mugadziriGuangdong Zhenhua
Nguva yekutumira: Aug-30-2024