Phakathi nenqubo yokukhiqiza yansuku zonke, ngenxa yokuguga kwesithando somlilo, ijeneretha ye-nitrogen, ukubola kwe-ammonia nezinye izinto zokusebenza, imikhiqizo ye-powder metallurgy ngemva kwesithando somlilo inochungechunge lwezinkinga ze-oxidation ezifana nokuba mnyama, ukuphuzi, ukukhishwa kwe-carburization, kanye ne-sandblasting ebusweni. yomkhiqizo.
Ngemva kokuba inkinga yenzekile, umenzi kufanele aphenye isimo sokuzivikela ngokushesha ngangokunokwenzeka.Izinto zokuhlola ngokuvamile zihlanganisa ukuthi ukunakekelwa okuvamile kwejeneretha ye-nitrogen kwenziwa ngokujwayelekile, isimo sokusebenza sejeneretha ye-nitrogen, kanye nokuthi amanani ejeneretha ye-nitrogen P860 nitrogen analyzer anembile yini.Ukuthi ukucindezela kokusebenza kombhoshongo we-adsorption wejeneretha ye-nitrogen kungaphansi komugqa ojwayelekile, noma izinga lokushisa lokukhipha umoya-mpilo le-palladium catalyst engxenyeni ye-hydrogenation ne-deoxygenation ingaphandle kwebanga elivamile, kungakhathaliseki ukuthi ukuhlanzwa kwe-nitrogen nokomisa kushisisa ngokujwayelekile, futhi okuqukethwe kwe-oxygen kanye nomswakama we-nitrogen ekugcineni okungemuva kokuhlanzwa kwe-nitrogen kuyizinkomba Kungakhathaliseki ukuthi ingaphakathi kwenani lenani elijwayelekile, kuyadingeka ukuthatha impendulo ngesikhathi ezinkingeni ezifanele.
Imikhiqizo ye-powder metallurgy ivamise ukusebenzisa i-mesh belt esithandweni somlilo esiqhubekayo kanye nesithando somlilo esibamba induku ukuze sishise.Umkhathi wokuvikela uhlukaniswe ngemikhiqizo esekwe ngethusi kanye nemikhiqizo esekwe ngensimbi ngokuya ngezinto zemikhiqizo ye-powder metallurgy.Ngokuvamile, i-iron powder icindezelwa ukuze yenze imikhiqizo e-sintered kakhulu, kanye ne-iron-based For for powder metallurgy products, high-purity nitrogen enokuqukethwe kwamanzi okungaphansi kwe-5PPM kanye nokuhlanzeka okuphezulu okungu-99.999% okukhiqizwa idivayisi yokukhiqiza i-hydrogen ye-ammonia noma i-PSA esizeni se-nitrogen generator kanye ne-hydrogenation kanye ne-deoxygenation purification ingasetshenziswa njengendawo yokuvikela.Ngemva kokuvela kwezinkinga ezithile ze-oxidation emikhiqizweni ye-powder metallurgy, hlola ukuthi ijeneretha ye-nitrogen nesithando somlilo sokubola i-ammonia konke kujwayelekile, noma ngemva kokuxazulula inkinga kwejeneretha ye-nitrogen nokubola kwe-ammonia, inkinga ye-oxidation yemikhiqizo ye-powder metallurgy isekhona.
Isinyathelo esilandelayo kufanele sicabangele isithando somlilo uqobo.
Kungakhathaliseki ukuthi i-push rod furnace noma isithando somlilo sebhande le-mesh, kuzoba nendawo yokupholisa ibhantshi lamanzi.Ngemuva kokuthi ithubhu ye-muffle yesithando somlilo isikhulile, kuzoba nokuvuza kwamanzi.Amanzi azobola abe umoya-mpilo ekushiseni okuphezulu, okubangela ukuthi imikhiqizo eyimpuphu yensimbi ibe mnyama futhi ibe phuzi futhi ikhiphe ikhabhoni.I-Ding Wentao, uma Ishisa emazingeni okushisa aphezulu namalangabi.Amalangabi abangelwa ukusha kwe-hydrogen ne-powder metallurgical components esithandweni esishisayo.Ngalesi sikhathi, izinto ezine-sandblasted zizokhiqizwa ebusweni bomkhiqizo, okuyizinsalela ezivuthayo.Uma isembozo esiyisivikelo sisetshenziselwa ukusimboza, sizothuthukiswa, kodwa ukuvikelwa kwe-nitrogen okuhlanzekile akukho endaweni kuzodala i-oxidation encane.
Kodwa-ke, emikhiqizweni ye-metallurgy ye-powder esekwe ngethusi emsulwa, i-75% hydrogen + 25% kuphela igesi exutshwe ne-nitrogen ekhiqizwa ukubola kwe-ammonia ukukhiqiza i-hydrogen engasetshenziswa njengendawo yokuvikela.Yiqiniso, ukusetshenziswa kwe-high-purity hydrogen kuphumelela kakhulu, ngenxa yezindleko ezinkulu zegesi nokuphepha kokusebenza.Iningi labo lisebenzisa i-ammonia yokubola imishini yokukhiqiza i-hydrogen njengomthombo we-hydrogen.
Lapho ishubhu le-muffle yesithando somlilo esishisayo livuza futhi livutha, ukukhiqizwa kweshubhu le-muffle kufanele kumiswe ngokushesha futhi kufakwe esikhundleni.Ukuze ungathinti ikhwalithi yomkhiqizo!
Isikhathi sokuthumela: Nov-01-2021