I-K-uhlobo lwe-thermocouple sisivamvo sobushushu esisetyenziswa ngokuqhelekileyo, kwaye imathiriyeli yayo ikakhulu yenziwe ngeengcingo ezimbini ezahlukeneyo zentsimbi. Iingcingo ezimbini zetsimbi zihlala ziyi-nickel (Ni) kunye ne-chromium (Cr), eyaziwa ngokuba yi-nickel-chromium (NiCr) kunye ne-nickel-aluminium (NiAl) thermocouples.
Umgaqo wokusebenza weK-uhlobo thermocoupleisekelwe kwimpembelelo ye-thermoelectric, oko kukuthi, xa amajoyina eentambo ezimbini zetsimbi ezahlukeneyo zikwiqondo lokushisa elihlukeneyo, i-electromotive force iya kuveliswa. Ubukhulu balo mandla ombane we-electromotive bulingana nokwahluka kobushushu bomdibaniselwano, ngoko ke ixabiso lobushushu linokumiselwa ngokulinganisa ubungakanani bamandla ombane.
Izinto eziluncedo zohlobo lwe-Kthermocoupleszibandakanya uluhlu olubanzi lokulinganisa, ukuchaneka okuphezulu, ukuzinza okulungileyo, ixesha lokuphendula ngokukhawuleza, kunye nokuchasana okunamandla kokuhlwa. Kwangaxeshanye, inokusetyenziswa kwiimeko ezahlukeneyo ezinzima zokusingqongileyo, ezifana nobushushu obuphezulu, i-oxidation, i-corrosion kunye nezinye iindawo. Ke ngoko, i-thermocouples yohlobo lwe-K isetyenziswa kakhulu kwishishini, amandla, ukukhuselwa kwendalo, ezonyango kunye nezinye iinkalo.
Xa kuveliswa i-thermocouples yohlobo lwe-K, izinto ezifanelekileyo zetsimbi kunye neenkqubo kufuneka zikhethwe ukuze kuqinisekiswe ukusebenza kwazo nokuzinza. Ngokuqhelekileyo, i-nickel-chromium kunye neengcingo ze-nickel-aluminium zineemfuno eziphezulu zokucoceka kwaye zifuna iinkqubo ezikhethekileyo zokunyibilikisa kunye nokucubungula. Ngelo xesha, ingqalelo kufuneka ihlawulwe ekuqinisekiseni umgangatho kunye nokuzinza kwamalungu ngexesha lenkqubo yokuvelisa ukuphepha iingxaki ezifana nokunyuka kweqondo lokushisa okanye ukungaphumeleli.
Ngokubanzi, ii-thermocouples zohlobo lwe-K zenziwe ikakhulu nge-nickel kunye neengcingo zentsimbi zechromium. Ukusebenza kwazo kuzinzile kwaye zithembekile, kwaye zisetyenziswa ngokubanzi kwiindawo ezahlukeneyo zokulinganisa ubushushu. Kwizicelo ezisebenzayo, kuyimfuneko ukukhetha imodeli efanelekileyo ye-thermocouple kunye neenkcukacha ngokuhambelana nendawo ethile yokusetyenziswa kunye neemfuno, kwaye wenze ukufakela okuchanekileyo kunye nokugcinwa kokuqinisekisa ukuchaneka komlinganiselo kunye nobomi benkonzo.
Oku ngasentla sisingeniso esifutshane kwi-K-type thermocouple material. Ndiyathemba ukuba inokukunceda uqonde ngcono umgaqo wokusebenza kunye nokusetyenziswa kwesi sixhobo sobushushu. Ukuba ufuna ulwazi oluthe kratya okanye amakhonkco emifanekiso ukuqonda ngcono izinto kunye nolwakhiwo lwe-K-uhlobo lwe-thermocouples, nceda ukhululekendibuzaumbuzo kwaye ndiza kukunika wona ngokukhawuleza.
Ixesha lokuposa: Mar-04-2024
