Parenga 5mm Whānui 1Cr13Al4 Maamaa Papatahi Wea FeCrAl waea parenga
1Cr13Al4 FeCrAl koranu Wehe Papatahi Maama/ Wea Whanui mo te Whakamahi Paearu
Ko te Fecral Alloys me te Nickel-chromium alloys kua tohua hei rauemi parenga mo te parenga whakauru na te mea he nui te parenga hiko e whakamahia ana mo nga parenga kiriata angiangi [1, 2]. Ko te parenga pepa o te kiriata koranu nickel-chrome kei roto 20% chromium ka taea te teitei ki te 2-3 kiro ohm me te pupuri tonu i te pai. Ko te whakarea pāmahana 1 o te parenga (TCR) mo te nuinga o te nickel-chrome alloy he 110 ppm/°C. Ma te whakakotahi i te iti o te silicon me te konumohe me te nickel-chromium, ka pai ake te pumau o te pāmahana.
Taupānga:
Ko nga parenga kua mau ki roto i te papa waea kua taia hei whakaahei mo te whakaiti i nga kohinga me te pono ake me te pai ake o te mahi hiko. Ko te whakauru i te mahi parenga ki roto i te tïpako laminate ka wetekina te mata o te PWB i pau i nga waahanga motuhake, ka taea te whakanui ake i te mahi taputapu ma te whakaurunga o nga waahanga kaha ake. Ko nga koranu nickel-chromium he nui te parenga hiko, na reira ka taea te whakamahi i roto i nga momo tono. Ko te Nickel me te chromium ka whakakotahi ki te silicon me te konumohe hei whakapai ake i te pumau o te pāmahana me te whakaheke i te whakarea wera o te aukati. He paparanga parenga kiriata angiangi i runga i nga koranu nickel-chromium kua tukuna tonu ki runga i nga roera konumohe parahi hei hanga rauemi mo nga tono parenga whakauru. Ko te paparanga whakaatete kiriata angiangi e mau ana i waenganui i te parahi me te laminate ka taea te tarai maataki hei hanga parenga motuhake. Ko nga matū mo te tarai he mea noa i roto i nga tukanga whakaputa PWB. Ma te whakahaere i te matotoru o nga koranu, nga uara parenga pepa mai i te 25 ki te 250 ohm/sq. ka whiwhi. Ka whakatairitehia e tenei pepa nga rauemi nickel-chromium e rua i roto i o raatau tikanga tarai, te rite, te whakahaere hiko, te mahi waiariki, te piri me te whakataunga tarai.
| Ingoa waitohu | 1Cr13Al4 | 0Cr25Al5 | 0Cr21Al6 | 0Cr23Al5 | 0Cr21Al4 | 0Cr21Al6Nb | 0Cr27Al7Mo2 | |
| Hanganga matū matua% | 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 | whai waahi nui | whai waahi nui | whai waahi nui | whai waahi nui | whai waahi nui | whai waahi nui | whai waahi nui | |
| Fe | Okioki | Okioki | Okioki | Okioki | Okioki | Okioki | Okioki | |
| Nb0.5 | Mo1.8-2.2 | |||||||
| Max.tonu ratonga temp.of huānga (ºC) | 950 | 1250 | 1250 | 1250 | 1100 | 1350 | 1400 | |
| Te ātete μΩ.m,20ºC | 1.25 | 1.42 | 1.42 | 1.35 | 1.23 | 1.45 | 1.53 | |
| Kiato (g/cm3) | 7.4 | 7.10 | 7.16 | 7.25 | 7.35 | 7.10 | 7.10 | |
| Ngawha te kawe KJ/mhºC | 52.7 | 46.1 | 63.2 | 60.2 | 46.9 | 46.1 | 45.2 | |
| Tauwehe o roha raina α×10-6/ºC | 15.4 | 16.0 | 14.7 | 15.0 | 13.5 | 16.0 | 16.0 | |
| Ira whakarewaºC | 1450 | 1500 | 1500 | 1500 | 1500 | 1510 | 1520 | |
| Te kaha tensile Mpa | 580-680 | 630-780 | 630-780 | 630-780 | 600-700 | 650-800 | 680-830 | |
| Te whakaroa i pakaru % | >16 | >12 | >12 | >12 | >12 | >12 | >10 | |
| Te rereke o rohe % | 65-75 | 60-75 | 65-75 | 65-75 | 65-75 | 65-75 | 65-75 | |
| Tukuruatia te piko auau(F/R) | >5 | >5 | >5 | >5 | >5 | >5 | >5 | |
| Maama(HB) | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | |
| Micrographic hanganga | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | |
| aukume taonga | aukume | aukume | aukume | aukume | aukume | aukume | aukume | |
