Ukwethulwa Kokulawulwa Okuzenzakalelayo Kwezinga lokushisa Lomlilo ku I-Vacuum Atmosphere Furnace

I-vacuum atmosphere yesithando somlilo isithando somlilo sokulawula okuzenzakalelayo okuzenzakalelayo imithetho elawulayo evame ukusetshenziswa ihlanganisa izindawo ezimbili, izindawo ezintathu, ukwabelana, ukwabelana okubalulekile kanye nokwaba umehluko obalulekile. Ukulawulwa kokushisa kwesithando somlilo kuyinkqubo enjalo yokusabela. Qhathanisa izinga lokushisa langempela lesithando somlilo kanye nezinga lokushisa lesithando somoya ukuze uthole iphutha. Ngemuva kokuthi iphutha licutshungulwa, isignali yokulawula itholakala ukuze kulungiswe amandla okushisa esithandweni sokumelana, bese ukulawulwa kokushisa kwesithando somlilo kuqedwa.

1. Umphumela wokulawula (ukulawula kwe-PID) ukhiqizwa ngokuya ngesabelo sephutha, okubalulekile nokuphuma kokunye, okuyifomu lokulawula elisetshenziswa kabanzi ekulawuleni inqubo.

2, isimo sezikhundla ezimbili-inezimo ezimbili kuphela: vula futhi icishwe. Lapho izinga lokushisa lomlilo wesithando somlilo se-vacuum emoyeni liphansi kunenani elibekiwe, i-actuator ivuliwe ngokugcwele; lapho izinga lokushisa lomlilo lingaphezulu kwenani elibekiwe, i-actuator ivalwe ngokugcwele. I-actuator ngokuvamile i-contactor.

3. Isimo sezindawo ezintathu-inamanani amabili anikeziwe wemikhawulo engaphezulu nephansi. Lapho izinga lokushisa esithandweni somlilo we-vacuum emoyeni liphansi kunenani elinikeziwe lomkhawulo ophansi, i-contactor ivuliwe ngokugcwele; lapho izinga lokushisa lomlilo liphakathi kwenani elinikeziwe lomkhawulo ongaphezulu kanye nomkhawulo ophansi, kwenziwa Ingxenye ye-actuator ivuliwe; lapho izinga lokushisa lomlilo wesithando somoya lidlula inani elibekiwe lomkhawulo ophezulu, i-actuator ivalwe ngokugcwele. Isibonelo, uma i-heater ye-tubular iyisici sokushisa, isimo se-t-position conditioning singasetshenziswa ukuqedela umehluko wamandla okushisa nawokugcina ukushisa.

Ngaphezu kwalokho, lapho uthenga isithando somlilo se-vacuum, kufanele uqale unqume amandla aso. Ngesikhathi esifanayo, kufanele ucabangele ukusebenza kahle kwayo kokushisa kukagesi kanye nesici samandla. Kunezindlela ezimbili zokunquma amandla.

Enye indlela yokulinganisa ukushisa. Ngokomthetho wokongiwa kwamandla, ukushisa okuphelele okudliwe yi-vacuum atmosphere esithandweni somlilo silingana nokushisa okuphelele okukhishwa isici sokushisa kagesi. Ukushisa okuphelele okusetshenzisiwe kufaka phakathi ukushisa okusebenzayo kokushisisa insimbi nokulahlekelwa ukushisa kwesithando somoya. Ukushisa kuguqulwa emandleni aphelele, futhi ukusebenza kahle kokushisa kagesi kuyacatshangelwa, bese kuphindaphindwa yi-coefficient yokugcina amandla. Le coefficient ilinganisela ukuthi ukukhiqiza kwesithando somlilo kungase kukhuphuke futhi nokulahlekelwa ukushisa kungase kukhuphuke. I-coefficient yokugcina amandla ingeyezifudumezi ze-atmosphere eqhubekayo kanye nomoya osebenza ngezikhathi ezithile. Olunye uhlobo lwesithando somlilo luyindlela ye-empirical, enquma ngokuyinhloko amandla esithandweni ngokuya ngevolumu yesithando somlilo.