电阻丝,镍铬材料因其高温强度高,可塑性强,广泛用于工业电炉、家用电器、远红外装置。
电阻丝_电阻丝 -规格
电阻丝
材质:0Cr25Al5、Cr20Ni80,Cr15Ni60,GH140
电阻丝_电阻丝 -设计参数
线 径(mm)截面积(mm2)每米表面积cm2/mCr20Ni80Cr30Ni70Cr15Ni60每米重量kg/m每米电阻Ω/m,20℃每米重量kg/m每米电阻Ω/m,20℃每米重量kg/m每米电阻Ω/m,20℃0.100.0078543.1420.00006597138.80.00006362150.20.00006440142.60.120.011313.7700.0000950096.380.00009161104.30.0000927499.030.150.017674.7120.000148461.680.000143166.770.000144963.380.170.022705.3410.000190748.020.000183951.990.000186149.340.190.028355.9690.000238238.440.000229741.620.000232539.500.210.034646.5970.000290931.470.000280634.070.000284032.340.250.049097.8540.000412322.210.000397624.040.000402522.820.270.057268.4820.000480919.040.000463820.610.000469519.560.290.066059.1110.000554816.500.000535017.860.000541616.960.310.075489.7390.000634014.440.000611415.630.000618914.840.350.0962111.000.000808211.330.000779312.260.000788911.640.400.125712.570.0010568.6740.0010189.3900.0010308.9130.450.159014.140.0013396.8350.0012887.4190.0013047.0420.500.196315.710.0014695.5510.0015906.0100.0016105.7040.600.282718.850.0023753.8550.0022904.1730.0023183.9610.700.384821.990.0032332.8320.0031173.0660.0031562.9100.800.502725.130.0042222.1680.0040722.3480.0041222.2280.900.636228.270.0053441.7130.0051531.8550.0052171.7611.000.785431.420.0065971.3880.0063621.5020.0064401.4261.201.13137.700.0095000.96380.0091611.0430.0092740.99031.401.53943.980.012930.70810.012470.76650.012620.72761.602.01150.270.016890.54210.016290.58690.016490.55701.802.54556.550.021380.42830.020610.46370.020870.44012.003.14262.830.026390.34700.025450.37560.025760.35652.203.80169.120.031390.28670.030790.31040.031170.29462.503.97670.690.033400.27410.032210.29680.032600.28172.806.15887.960.051720.17700.049880.19160.050490.18193.007.06994.250.059380.15420.057260.16690.057960.15843.509.621110.00.080820.11330.077930.12260.078890.11644.0012.57125.70.10560.086740.10180.093900.10300.089134.5015.90141.40.13360.068530.12880.074190.13040.070425.0019.63157.10.16490.055510.15900.060100.16100.057045.5023.76172.80.19960.045880.19240.049670.19480.047146.0028.27188.50.23750.038550.22900.041730.23180.039616.5033.18204.20.27870.032850.26880.035560.27210.033757.0038.48219.90.32330.028320.31170.030660.31560.02910电阻丝_电阻丝 -注意事项
1、电炉丝在设计时应根据功率接线方法,合理的表面负荷,正确选用丝径;
2、电炉丝在安装前应对炉膛全面检查,清除铁素体,结碳,与电炉上接触的隐患,避免短路,以防造成炉丝击穿;
3、电炉丝在安装时应按设计的接线方法正确连接;
4、在使用电炉丝前应检查控温系统的灵敏度,以防温失灵,造成电炉丝烧毁。
电阻丝_电阻丝 -保养
1)炉内的氧化皮必须经常用毛刷、扫帚或压缩空气清除干净,以防落在合金元件上而发生短路,一般每月清扫不应少于一次。
2)底板、柑竭、炉罐等耐热钢构件每经使用一段时间,最好吊起敲击,清除其氧化铁皮,以免崩及或埋没元件。尤其是铬锰氮钢,用到后期时剥落更为严重。
3)箱式炉沪门的下齿和并式炉炉盖的环刀必须严密插入砂封槽内,砂封内的砂子不能装得过满,并要平正。如掉入炉内砂子,则应及时清理。对低温炉,则可垫上一层完好的石棉绳衬垫。
4)外热式盐浴炉应定期吊出柑涡,清除熔盐。元件表面的凝盐可用热水清洗;搁砖上的凝盐则可采用刮除的方法清除。
5)黄铜保温炉的炉盖必须对接严密,防止“铜霜”掉入炉膛而侵蚀元件。
6)避免铜、铝、锌、锡、铅等有色金属与电热元件接触,无论是细粉、熔液或蒸汽,在高温时对元件的侵蚀都是十分有害的。这是因为被侵蚀的部位形成“麻坑”,截面变小,最后由于过热而烧断。
7)升降式电退火炉用小车盖板应压盖严密,以防.铸件退火时掉入砂子将元件埋没而发生过热熔化。因此,必须经常检查,并及时清除积砂。
8)由于升温停炉时的热胀冷缩以及蠕变伸长等,引出棒接线夹子的螺栓容易发生氧化松动,应该定期检查并拧紧。
9)引出棒孔要堵塞严密,以免漏出保护气体在此燃烧,引起棒体氧化掉皮,以致引出棒与夹子接触不良。
10)在无罐渗碳炉或采用含CO的可控气氛时,会发生碳的游离而导致短路。故应经常开启炉门或定期用压缩空气进行吹洗,使碳的燃烧物及时烧掉。