Kutheni ukhetha ivalvu yokujonga? Zeziphi iintlobo zeevalvu ezikhoyo?

Iivalvu zokujonga ziye zaba zizixhobo ezibalulekileyo zokufaka iipayipi kunye neevalvu kuyilo lwangoku lwepayipi. Zibonelela ngeziqinisekiso zokhuseleko lwalo lonke ipayipi kwaye zinciphisa ngokungathanga ngqo iingozi zokhuseleko kunye neendleko zalo lonke inkqubo yepayipi.

Iivalvu zokujonga zisetyenziselwa ukujonga iimeko zemveliso ngexesha langempela, ukusombulula iingxaki nokuqinisekisa ukhuseleko. Iivalvu zokujonga ezisetyenziswa rhoqo (ezifana neeglasi zokubona ezithe ngqo kunye nezikhombisi zokuhamba) azilawuli ukuhamba kwazo ngokwazo, kodwa zibonelela ngefestile ebonakalayo kumbhobho.

Iingenelo zokujonga iivalvu zibonakala ikakhulu kwiinkalo ezintathu:

1. Jonga ngokuthe ngqo imeko yokuhamba kwamanzi, umbala kunye nokuxinana kolwelo, igesi, umphunga kunye nezinye izinto ezikwipayipi.
2. Xa inkqubo ifumana ukuhamba okungaqhelekanga, ukuvaleka okanye ukungabikho kokuhamba, unobangela unokufunyanwa ngokukhawuleza ngevalvu yokujonga nokuba kungenxa yokuba ivalvu ngokwayo ibambekile, ukuba ingaphakathi levalvu liyawa, okanye iingxaki kumbhobho ongaphezulu.
3. Qinisekisa ukusebenza ngokukhuselekileyo kwenkqubo. Kwiindawo ezinobungozi ezifana nezityalo zeekhemikhali, isetyenziselwa ukujonga imidiya eshushu kakhulu, enokubola kakhulu kwaye eqiniswe lula ukuthintela iingozi zokhuseleko ezibangelwa ngamanqanaba olwelo okanye ukuvaleka kolwelo.

Iivalvu ezahlukeneyo zokujonga zisetyenziswa kwiindawo ezahlukeneyo zokusebenza. Zenziwe ngentsimbi yekhabhoni, zifanelekile kwiindawo eziqhelekileyo ezifana namanzi, umphunga, kunye neoyile, kodwa azikwazi ukumelana nokugqwala.

Izinto zentsimbi engenasici

Yeyona nto isetyenziswa kakhulu ekumelaneni nokugqwala kwaye ifanelekile kwiindidi ezahlukeneyo zezinto ezigqwalayo.

Intsimbi ye-alloy kunye nezixhobo ezikhethekileyo zentsimbi engenasici

Ifanelekile kwiindawo ezinzima ezifana nobushushu obuphezulu, uxinzelelo oluphezulu, kunye nokugqwala okunamandla.

Ifakwe iplastiki okanye i-fluorine

Ifanelekile kwiindawo ezidlaka kakhulu ezifana nee-asidi ezinamandla kunye nee-alkali ezinamandla.

So

• Izixhobo ezingonakalisiyo: Intsimbi yekhabhoni ayinyanzelekanga kwaye ixabisa kancinci.
• Izinto ezisetyenziswa kakhulu xa kugaywa: Intsimbi engagqwaliyo engama-304 okanye angama-316 iyathandwa.
• I-media erhabaxa kakhulu okanye ekhethekileyo: Iivalvu ezine-fluorine okanye ii-alloys ezikhethekileyo ziyafuneka.
• Imidiya yobushushu obuphezulu okanye obuphantsi: Kufuneka kukhethwe intsimbi ekhethekileyo yobushushu obuphezulu okanye intsimbi yobushushu obuphantsi.

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