Muchina wekucheka weplasma unodzorwa nenhamba ine yakakwira isina-load voltage uye inoshanda voltage inoda yakakwira voltage yekudzikamisa plasma arc kana uchishandisa gasi rine yakakwira ionization simba senge nitrogen, hydrogen kana mhepo.Kana iyo ikozvino inogara iripo, kuwedzera kwemagetsi kunoreva kuwedzera kwearc enthalpy uye kuwedzera kwekugona kwekucheka.Kana iyo dhayamita yejeti yakaderedzwa uye chiyero chekuyerera kwegesi chinowedzera apo enthalpy inowedzera, kukurumidza kucheka kukurumidza uye kunaka kwekucheka kwepamusoro kunowanzo kuwanikwa.
1. Hydrogen inowanzoshandiswa segasi rinobatsira kusanganisa nemamwe magasi.Semuenzaniso, gasi rine mukurumbira H35 (hydrogen vhoriyamu chikamu che35%, yasara ndeye argon) ndeimwe ine simba gasi arc yekucheka kugona, iyo inonyanya kubatsira kune haidrojeni.Sezvo hydrogen inogona kuwedzera zvakanyanya arc voltage, iyo hydrogen plasma jet ine yakakwirira enthalpy kukosha, uye kana yakashandiswa pamwe chete neargon gasi, kugona kwekucheka kwejet yeplasma kunovandudzwa zvikuru.
2. Okisijeni inogona kuwedzera kukurumidza kwekucheka pasi carbon steel zvinhu.Paunenge uchicheka neokisijeni, iyo yekucheka modhi uye CNC murazvo wekucheka muchina unofungidzira chaizvo.Iyo yakanyanya tembiricha uye yakakwira simba plasma arc inoita kukurumidza kucheka nekukurumidza.Iyo spiral duct muchina inofanirwa kusanganiswa ne electrode inopokana nepamusoro tembiricha oxidation, uye electrode inodzivirirwa kana uchitanga arc.Impact kudzivirira kuwedzera hupenyu hwe electrode.
3, mhepo ine inenge 78% yehuwandu hwe nitrogen, saka kushandiswa kwekucheka kwemhepo kuumba slag uye nitrogen inofungidzira zvikuru;mhepo inewo inenge 21% yehuwandu hweokisijeni, nekuda kwekuvapo kweokisijeni, mweya Inokurumidza kutema zvinhu zvakaderera kabhoni simbi zvakare yakakwirira;panguva imwecheteyo, mhepo ndiyo zvakare ine mari yakawanda inoshanda gasi.Zvisinei, kana kucheka kwemhepo kuchishandiswa chete, kune matambudziko akadai semarara uye oxidation ye slit, nitrogen kuwedzera, nezvimwewo, uye hupenyu hwepasi hwe electrode uye nozzle inokanganisawo kushanda zvakanaka uye kucheka mutengo.Sezvo plasma arc yekucheka kazhinji inoshandisa sosi yemagetsi ine inogara iripo kana inodonha maitiro, shanduko yezvino idiki mushure mekuwedzera kwehurefu, asi kureba kwearc kunowedzerwa uye arc voltage inowedzerwa, nekudaro ichiwedzera arc simba;Iyo arc kureba yakafumurwa kune zvakatipoteredza inowedzera, uye simba rakarasika nearc column rinowedzera.
4. Nitrogen igasi rinoshandiswa rinowanzoshandiswa.Pasi pemamiriro emagetsi emagetsi epamusoro, iyo nitrogen plasma arc ine kugadzikana kuri nani uye yakakwirira jet simba pane argon, kunyangwe iri chinhu chine viscosity yakakwirira yekucheka simbi yemvura.Musimbi isina tsvina uye nickel-based alloys, huwandu hwe slag pamucheto wezasi we slit zvakare idiki.Nitrogen inogona kushandiswa yoga kana kusanganiswa nemamwe magasi.Plasma yekucheka michina inowanzoshandiswa.Semuenzaniso, nitrogen kana mhepo inowanzoshandiswa segasi rinoshanda rekucheka otomatiki.Aya magasi maviri akave magasi akajairwa ekucheka-kumhanya kwekabhoni simbi.Nitrogen dzimwe nguva inoshandiswa searcing gasi yeokisijeni plasma arc yekucheka.
5. Argon gasi haatombopindirani nesimbi chero ipi zvayo pakupisa kwepamusoro, uye argon nhamba yekudzora plasma yekucheka muchina yakanyatsogadzikana.Uyezve, ma nozzles nema electrode anoshandiswa ane hupenyu hwesevhisi.Nekudaro, iyo argon plasma arc ine yakaderera voltage, yakaderera enthalpy kukosha, uye shoma yekucheka kugona.Ukobvu hwekucheka hunenge 25% yakaderera pane iyo yekucheka kwemhepo.Pamusoro pezvo, kushushikana kwepamusoro kwesimbi yakanyungudutswa kwakakura munzvimbo yakachengetedzwa argon.Inenge 30% yakakwirira kudarika mumhepo ye nitrogen, saka pachava nematambudziko akawanda nekudonha.Kunyange kana musanganiswa we argon nemamwe magasi anoshandiswa, kune tsika yekunamatira kune slag.Naizvozvo, yakachena argon gasi haisati yamboshandiswa yega pakucheka plasma.
Kushandiswa uye kusarudzwa kwegasi muCNC plasma yekucheka muchina kwakakosha zvikuru.Kushandiswa kwegasi kuchakanganisa zvakanyanya kuchekwa kwekucheka uye slag.
Nguva yekutumira: Sep-02-2019