金川专业优供台车炉用接触器 台车接触器 工业电炉

r    金川公司专业生产工业台车炉用接触器。欢迎洽谈。r

r

r    r

r

r    
r

r

r    镍铬合金电热丝的优点是在高温环境中的强度高,长期高温运行不易变形,不易改变结构,且镍铬合金电热丝的常温塑性好,变形后的修复较为简单。此外,镍铬合金电热丝的辐射率高、不带磁性、耐腐蚀能力好、使用寿命长。 r

r

r    镍铬合金电热丝的缺点是运行温度不能达到上一种电热丝的水平。镍铬合金电热丝的制造需要使用镍,这种金属的价格高于铁、铬、铝的价格,因此镍铬合金电热丝的制造成本较高,不利于成本控制。 r

r

r    镍铬合金主要技术性能参数 r

r

r    
r

rr    r        r            r            r            r            r            r            r            r            r            r            r            r        r        r            r        r        r            r            r            r            r            r            r            r            r            r            r            r        r        r            r            r            r            r            r            r            r            r            r            r            r        r        r            r            r            r            r            r            r            r            r            r            r            r        r        r            r            r            r            r            r            r            r            r            r            r            r        r        r            r            r            r            r            r            r            r            r            r            r            r        r    r
r                

r                    合金牌号 r                

r            
r                

r                    C r                

r            
r                

r                    P r                

r            
r                

r                    S r                

r            
r                

r                    Mn r                

r            
r                

r                    Si r                

r            
r                

r                    Cr r                

r            
r                

r                    Ni r                

r            
r                

r                    Al r                

r            
r                

r                    Fe r                

r            
r                

r                    其他 r                

r            
r                

r                    不大于 r                

r            
r                

r                    Cr20Ni80 r                

r            
r                

r                    0.08 r                

r            
r                

r                    0.020 r                

r            
r                

r                    0.015 r                

r            
r                

r                    0.60 r                

r            
r                

r                    0.751.60 r                

r            
r                

r                    20.023.0 r                

r            
r                

r                     r                

r            
r                

r                    ≤0.50 r                

r            
r                

r                    ≤1.0 r                

r            
r                

r                     r                

r            
r                

r                    Cr30Ni70 r                

r            
r                

r                    0.08 r                

r            
r                

r                    0.020 r                

r            
r                

r                    0.015 r                

r            
r                

r                    0.60 r                

r            
r                

r                    0.751.60 r                

r            
r                

r                    28.031.0 r                

r            
r                

r                     r                

r            
r                

r                    ≤0.50 r                

r            
r                

r                    ≤1.0 r                

r            
r                

r                     r                

r            
r                

r                    Cr15Ni60 r                

r            
r                

r                    0.08 r                

r            
r                

r                    0.020 r                

r            
r                

r                    0.015 r                

r            
r                

r                    0.60 r                

r            
r                

r                    0.751.60 r                

r            
r                

r                    15.018.0 r                

r            
r                

r                    55.061.0 r                

r            
r                

r                    ≤0.50 r                

r            
r                

r                     r                

r            
r                

r                     r                

r            
r                

r                    Cr20Ni35 r                

r            
r                

r                    0.08 r                

r            
r                

r                    0.020 r                

r            
r                

r                    0.015 r                

r            
r                

r                    1.00 r                

r            
r                

r                    1.003.00 r                

r            
r                

r                    18.021.0 r                

r            
r                

r                    34.037.0 r                

r            
r                

r                     r                

r            
r                

r                     r                

r            
r                

r                     r                

r            
r                

r                    Cr20Ni30 r                

r            
r                

r                    0.08 r                

r            
r                

r                    0.020 r                

r            
r                

r                    0.015 r                

r            
r                

r                    1.00 r                

r            
r                

r                    1.002.00 r                

r            
r                

r                    18.021.0 r                

r            
r                

r                    30.034.0 r                

r            
r                

r                     r                

r            
r                

r                     r                

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r                

r                     r                

r            
r

r    
r

rr    r        r            r            r            r            r            r            r        r        r            r            r            r            r            r            r        r        r            r            r            r            r            r            r            r        r        r            r            r            r            r            r            r        r        r            r            r            r            r            r            r        r        r            r            r            r            r            r            r        r        r            r            r            r            r            r            r        r        r            r            r            r            r            r            r        r        r            r            r            r            r            r            r        r        r            r            r            r            r            r            r        r        r            r            r            r            r            r            r        r        r            r            r            r            r            r            r        r        r            r            r            r            r            r            r        r        r            r            r            r            r            r            r        r        r            r            r            r            r            r        r    r
r                

r                    牌号 r                

r            
r                

r                    Cr20Ni80 r                

r            
r                

r                    Cr30Ni70 r                

r            
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r                    Cr15Ni60 r                

r            
r                

r                    Cr20Ni35 r                

r            
r                

r                    Cr20Ni30 r                

r            
r                

r                    性能 r                

r            
r                

r                      r                

r            
r                

r                      r                

r            
r                

r                      r                

r            
r                

r                      r                

r            
r                

r                      r                

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r                    主要化学成分% r                

r            
r                

r                    Ni r                

r            
r                

r                    余量 r                

r            
r                

r                    余量 r                

r            
r                

r                    55-61 r                

r            
r                

r                    32-36 r                

r            
r                

r                      r                

r            
r                

r                    Cr r                

r            
r                

r                    20.023.0 r                

r            
r                

r                    28-31 r                

r            
r                

r                    15-18 r                

r            
r                

r                    18-21 r                

r            
r                

r                    18-21 r                

r            
r                

r                    Fe r                

r            
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r                    ≤1.0 r                

r            
r                

r                      r                

r            
r                

r                      r                

r            
r                

r                      r                

r            
r                

r                      r                

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r                    元件最高使用温度 r                

r            
r                

r                    1200 r                

r            
r                

r                    1250 r                

r            
r                

r                    1150 r                

r            
r                

r                    1050 r                

r            
r                

r                    1050 r                

r            
r                

r                    熔点 r                

r            
r                

r                    1400 r                

r            
r                

r                    1400 r                

r            
r                

r                    1400 r                

r            
r                

r                    1400 r                

r            
r                

r                    1400 r                

r            
r                

r                    密度g/cm3 r                

r            
r                

r                    8.40 r                

r            
r                

r                    8.1 r                

r            
r                

r                    8.2 r                

r            
r                

r                    7.9 r                

r            
r                

r                    7.9 r                

r            
r                

r                    电阻率μΩ·m20℃ r                

r            
r                

r                    1.09±0.05 r                

r            
r                

r                    1.18±0.05 r                

r            
r                

r                    1.12±0.05 r                

r            
r                

r                    1.04±0.05 r                

r            
r                

r                    1.04±0.05 r                

r            
r                

r                    延伸率% r                

r            
r                

r                    ≥20 r                

r            
r                

r                    ≥20 r                

r            
r                

r                    ≥20 r                

r            
r                

r                    ≥20 r                

r            
r                

r                    ≥20 r                

r            
r                

r                    比热J/g.℃ r                

r            
r                

r                    0.440 r                

r            
r                

r                    0.44 r                

r            
r                

r                    0.44 r                

r            
r                

r                    0.44 r                

r            
r                

r                    0.44 r                

r            
r                

r                    导热系数KJ/m.h℃ r                

r            
r                

r                    60.3 r                

r            
r                

r                    45.2 r                

r            
r                

r                    45.2 r                

r            
r                

r                    43.8 r                

r            
r                

r                    43.8 r                

r            
r                

r                    线胀系数a×10-6/℃201000℃ r                

r            
r                

r                    18.0 r                

r            
r                

r                    17.0 r                

r            
r                

r                    17.0 r                

r            
r                

r                    19.0 r                

r            
r                

r                    19.0 r                

r            
r                

r                    显微组织 r                

r            
r                

r                    奥氏体 r                

r            
r                

r                      r                

r            
r                

r                      r                

r            
r                

r                      r                

r            
r                

r                      r                

r            
r                

r                    磁性 r                

r            
r                

r                    非磁性 r                

r            
r                

r                      r                

r            
r                

r                      r                

r            
r                

r                      r                

r            
r

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r

 
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