Resistors 5mm Width 1Cr13Al4 Imọlẹ Flat Strip FeCrAl resistance wire
1Cr13Al4 FeCrAl alloy Light Flat Strip/Irinna jakejado fun Lilo Resistors
Fecral Alloys ati Nickel-chromium alloys ni a ti yan lati jẹ ohun elo resistive fun resistor ifibọ nitori nickel-chromium alloys ni agbara eletiriki giga ti o jẹ lilo pupọ fun awọn resistors fiimu tinrin [1, 2]. Iduro dì ti fiimu alloy nickel-chrome ti o ni 20% chromium le jẹ giga bi 2-3 kilo ohms ati tun ṣetọju iduroṣinṣin to dara. Olusọdipalẹ otutu 1 ti resistance (TCR) fun olopobobo nickel-chrome alloy jẹ nipa 110 ppm/°C. Nipa sisọ iwọn kekere ti ohun alumọni ati aluminiomu pẹlu nickel-chromium, iduroṣinṣin iwọn otutu ti ni ilọsiwaju siwaju sii.
Ohun elo:
Resistors ifibọ ni a tejede onirin ọkọ yoo jẹ ohun sise fun miniaturizing jo pẹlu ti o ga igbekele ati ki o dara itanna išẹ. Ṣiṣepọ iṣẹ-ṣiṣe resistor sinu sobusitireti laminate ṣe ominira ni agbegbe PWB ti o jẹ nipasẹ awọn paati ọtọtọ, ṣiṣe iṣẹ ṣiṣe ẹrọ pọ si nipasẹ gbigbe awọn paati ti nṣiṣe lọwọ diẹ sii. Awọn alloys nickel-chromium ni resistivity itanna giga, eyiti o jẹ ki wọn wulo fun lilo ni ọpọlọpọ awọn ohun elo. Nickel ati chromium ti wa ni alloyed pẹlu ohun alumọni ati aluminiomu lati mu iduroṣinṣin iwọn otutu dara si ati dinku olùsọdipúpọ igbona ti resistance. Fiimu tinrin resistive Layer ti o da lori nickel-chromium alloys ti wa ni ipamọ nigbagbogbo lori awọn yipo ti bankanje bàbà lati ṣẹda ohun elo fun awọn ohun elo resistor ifibọ. Fiimu tinrin resistive Layer sandwiched laarin Ejò ati laminate le ti wa ni selectively etched lati dagba ọtọ resistors. Awọn kemikali fun etching jẹ wọpọ ni awọn ilana iṣelọpọ PWB. Nipa ṣiṣakoso sisanra ti awọn alloys, awọn iye resistance dì lati 25 si 250 ohm/sq. ti wa ni gba. Iwe yii yoo ṣe afiwe awọn ohun elo nickel-chromium meji ni awọn ilana etching wọn, iṣọkan, mimu agbara, iṣẹ ṣiṣe igbona, ifaramọ ati ipinnu etching.
| Orukọ iyasọtọ | 1Cr13Al4 | 0Cr25Al5 | 0Cr21Al6 | 0Cr23Al5 | 0Cr21Al4 | 0Cr21Al6Nb | 0Cr27Al7Mo2 | |
| Iṣakopọ kemikali akọkọ% | Cr | 12.0-15.0 | 23.0-26.0 | 19.0-22.0 | 22.5-24.5 | 18.0-21.0 | 21.0-23.0 | 26.5-27.8 |
| Al | 4.0-6.0 | 4.5-6.5 | 5.0-7.0 | 4.2-5.0 | 3.0-4.2 | 5.0-7.0 | 6.0-7.0 | |
| RE | anfani iye | anfani iye | anfani iye | anfani iye | anfani iye | anfani iye | anfani iye | |
| Fe | Sinmi | Sinmi | Sinmi | Sinmi | Sinmi | Sinmi | Sinmi | |
| Nb0.5 | Mo1.8-2.2 | |||||||
| Max.tẹsiwaju iwọn iṣẹ.ti eroja (ºC) | 950 | 1250 | 1250 | 1250 | 1100 | 1350 | 1400 | |
| Resistivity μΩ.m,20ºC | 1.25 | 1.42 | 1.42 | 1.35 | 1.23 | 1.45 | 1.53 | |
| iwuwo (g/cm3) | 7.4 | 7.10 | 7.16 | 7.25 | 7.35 | 7.10 | 7.10 | |
| Gbona ifarakanra KJ/mhºC | 52.7 | 46.1 | 63.2 | 60.2 | 46.9 | 46.1 | 45.2 | |
| olùsọdipúpọ ti imugboroosi ila α×10-6/ºC | 15.4 | 16.0 | 14.7 | 15.0 | 13.5 | 16.0 | 16.0 | |
| Ojuami yoºC | 1450 | 1500 | 1500 | 1500 | 1500 | 1510 | 1520 | |
| Agbara fifẹ Mpa | 580-680 | 630-780 | 630-780 | 630-780 | 600-700 | 650-800 | 680-830 | |
| Elongation ni rupture% | >16 | >12 | >12 | >12 | >12 | >12 | >10 | |
| Iyatọ ti agbegbe% | 65-75 | 60-75 | 65-75 | 65-75 | 65-75 | 65-75 | 65-75 | |
| Tun atunse igbohunsafẹfẹ (F/R) | >5 | >5 | >5 | >5 | >5 | >5 | >5 | |
| Lile (HB) | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | |
| Micrographic igbekale | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | |
| Oofa ohun ini | Oofa | Oofa | Oofa | Oofa | Oofa | Oofa | Oofa | |
