Kutayikira kwa vacuum kumakhala pakati pa zolephereka zanthawi zonse za zowumitsira zowumitsa mu mafakitale. Idzayambitsa zovuta zina kuphatikiza kugwiritsa ntchito mphamvu kwambiri, kuyanika kwanthawi yayitali komanso kugwa kwazinthu. Kuyesa kwa Static pressure-hold ndiyo njira yothandiza kwambiri yowunika zowukira poyang'anira zotumiza zisanakwane komanso kuyang'anira malo atsiku ndi tsiku, komwe kumatha kuwunika kuchuluka kwa kutayikira popanda zowunikira zamtengo wapatali zamtengo wapatali.
Njira yonse yogwirira ntchito: mukatha kusonkhanitsa kwathunthu kapena kukonza batch, kutseka mwamphamvu chitseko chachipinda. Yambitsani mapampu a vacuum ndikukokera chipinda pansi kuti muyang'ane vacuum yomaliza. Mukafika pamtengo wa vacuum yokhazikitsidwa, zimitsani mapampu onse a vacuum ndi kutseka ma vacuum mavavu kuti mulekanitse mayunitsi a vacuum. Yambitsani nthawi ndikujambulitsa kuthamanga-kukwera mtengo mkati mwa chipindacho pakapita nthawi yokhazikika.
Njira zolandirira zimasiyana pamayunitsi osiyanasiyana. Zowumitsira zowumitsa zowumira m'mafakitale zokhala ndi chakudya: pansi pa kutentha m'chipinda, mutapatula gulu la vacuum, kuthamanga - Kuchepera kapena kufanana ndi 15Pa mkati mwa mphindi 30 kumatanthauza kuchita bwino; 15‑40Pa kuthamanga-kukwera kumagwera m'gawo lovomerezeka; Kuthamanga-kukwera pamwamba pa 40Pa kumasonyeza kutayikira koonekeratu ndipo kuwunika kwa malo otayikira kudzachitidwa.
Yang'anani pa malo otayira pafupipafupi: ① Mzere wosindikizira wa silicone pachitseko ndi malo olumikizirana, fufuzani zinyalala, zokala, ukalamba & ming'alu; ② ma gaskets amtundu uliwonse wa flange; ③ zolumikizira chitoliro cha vacuum; ④ kusindikiza mphete za vacuum valves; ⑤ zenera loyang'ana ndi madoko oyika sensa pakhoma lachipinda.
Langizo: Osayesa kuyesa kukakamiza pachipinda chotentha mukangomaliza kupanga. Dikirani mpaka chipinda chizizizira bwino mpaka kutentha kwa chipinda, chifukwa kuwonjezereka kwa kutentha ndi kutsika kumasokoneza kuwerengera mphamvu. Pewani kuyesedwa ndi mphepo yamphamvu kapena kusinthasintha kwanyengo komwe kumasokoneza zotsatira za mayeso.
Mayeso a Pressure-hold atha kuweruza ngati kutayikira kulipo konse, komabe sikungadziwike komwe kutayikira. Ngati zotsatira za kukakamiza zikulephera, tsatirani njira yodziwira kutayikira kuti mupeze malo omwe atayikira. Yesetsaninso kuyesa kwa pressure-hold mutatha kukonza kuti mutsimikizire oyenerera. Kulondera pafupipafupi kumathandizira kuzindikira kukalamba kobisika-ziwopsezo zomata pasadakhale ndikupewa kuwonongeka kwadzidzidzi panthawi yopanga.
