1Cr13Al4 FeCrAl alloy Bright Flat Strip/ Wide Strip yogwiritsira ntchito Resistors

Ma Fecral Alloys ndi ma Nickel-chromium alloys asankhidwa kukhala zinthu zotetezera resistor yolumikizidwa chifukwa ma nickel-chromium alloys ali ndi resistivity yamagetsi yapamwamba yomwe imagwiritsidwa ntchito kwambiri pa ma resistor owonda a filimu [1, 2]. Kukana kwa pepala la filimu ya nickel-chrome yokhala ndi 20% chromium kumatha kufika pa 2-3 kilo ohms ndikusungabe kukhazikika bwino. The temperature coefficient 1 of resistance (TCR) ya bulk nickel-chrome alloy ndi pafupifupi 110 ppm/°C. Mwa kuphatikiza silicon ndi aluminiyamu pang'ono ndi nickel-chromium, kukhazikika kwa kutentha kumawongoleredwa kwambiri.

Ntchito:

Ma resistors omwe ali mu bolodi losindikizidwa la mawaya adzakhala othandizira kupanga ma phukusi ang'onoang'ono okhala ndi kudalirika kwakukulu komanso magwiridwe antchito abwino amagetsi. Kuphatikiza magwiridwe antchito a resistor mu laminate substrate kumamasula malo a PWB omwe amagwiritsidwa ntchito ndi zigawo zosiyana, zomwe zimapangitsa kuti chipangizocho chigwire ntchito bwino poika zigawo zogwira ntchito kwambiri. Ma alloy a nickel-chromium ali ndi mphamvu zambiri zamagetsi, zomwe zimapangitsa kuti zikhale zothandiza kugwiritsidwa ntchito m'njira zosiyanasiyana. Nickel ndi chromium zimasakanizidwa ndi silicon ndi aluminiyamu kuti ziwongolere kukhazikika kwa kutentha ndikuchepetsa mphamvu ya kutentha. Gawo lochepa loletsa filimu lochokera ku ma alloy a nickel-chromium layikidwa mosalekeza pa mipukutu ya zojambulazo zamkuwa kuti apange zinthu zogwiritsira ntchito resistors. Gawo lochepa loletsa filimu lomwe lili pakati pa mkuwa ndi laminate likhoza kudulidwa mosankha kuti lipange ma resistors osiyana. Mankhwala oletsa ndi ofala kwambiri popanga PWB. Powongolera makulidwe a ma alloy, ma resistance a pepala kuyambira 25 mpaka 250 ohm/sq. amapezeka. Pepalali lidzayerekeza zipangizo ziwiri za nickel-chromium mu njira zawo zophikira, kufanana, kugwiritsa ntchito mphamvu, kutentha, kumatira, ndi kukana kuphikira.