A kind of heating wire material and its preparation method
A heating wire and weight percentage technology, applied in the field of heating wire materials and their preparation, can solve the problems of heating wires that are not suitable for lighters and have a short service life, and achieve the effects of long service life, improved service life and small cross-sectional area.
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Embodiment 1
[0028] Raw material weight percentage composition:
[0029] C: 0.20%, Mn: 0.40%, P: 0.03%, S: 0.04%, Re: 0.6%, Mg: 0.4%, Sn: 0.3%, Si: 0.75%, Cr: 6.5%, Mo: 0.60%, Be: 3.0%, Zr: 0.40%, Ti: 0.35%, Eu: 0.20%, Tb: 0.10%, and the rest is Fe.
[0030] Prepared by:
[0031] (1) Add Fe, Mn, Re, Mg, Sn, Cr, Mo, Be, Zr, Ti, Eu, Tb to be smelted into the vacuum chamber of the water-cooled copper crucible, vacuumize, and sinter at a temperature of 955°C molten.
[0032] (2) Add C, P and S at the same time and stir evenly under vacuum conditions, then add Be and Si at the same time, stir evenly again, and keep warm for 26 minutes, stir evenly, and draw wires under vacuum conditions.
[0033] (3) Under the condition of helium pressurization of 47Mpa, cool to 720°C at a cooling rate of 44°C / min, keep warm for 26min, and then drop to room temperature at a cooling rate of 44°C / min to obtain a finished heating wire material. The diameter of the heating wire material prepared under this cond...
Embodiment 2
[0035] Raw material weight percentage composition:
[0036] C: 0.10%, Mn: 0.40%, P: 0.03%, S: 0.03%, Re: 0.40%, Mg: 0.40%, Sn: 0.30%, Si: 0.50%, Cr: 4.0%, Mo: 0.45%, Be: 3.0%, Zr: 0.30%, Ti: 0.30%, Eu: 0.20%, and the rest is Fe.
[0037] Prepared by:
[0038] (1) Put the Fe, Mn, Re, Mg, Sn, Cr, Mo, Be, Zr, Ti, Eu to be smelted into the vacuum chamber of the water-cooled copper crucible, vacuumize, and melt at the sintering temperature of 930°C.
[0039] (2) Add C, P and S at the same time and stir evenly under vacuum conditions, then add Be and Si at the same time, stir evenly again, keep warm for 20min, stir evenly, and draw wires under vacuum conditions.
[0040] (3) Under the condition of helium pressurization of 40Mpa, cool to 720°C at a cooling rate of 40°C / min, keep warm for 20min, and then cool down to room temperature at a cooling rate of 40°C / min to obtain the finished heating wire material. The diameter of the heating wire material prepared under this condition is...
Embodiment 3
[0042] Raw material weight percentage composition:
[0043] C: 0.20%, Mn: 0.70%, P: 0.04%, S: 0.04%, Re: 0.60%, Mg: 0.60%, Sn: 0.40%, Si: 1.0%, Cr: 6.5%, Mo: 0.65%, Be: 4.0%, Zr: 0.40%, Ti: 0.40%, Eu: 0.30%, Tb: 0.30%, and the rest is Fe.
[0044] Prepared by:
[0045](1) Put Fe, Mn, Re, Mg, Sn, Cr, Mo, Be, Zr, Ti, Tb, Eu to be smelted into the vacuum chamber of the water-cooled copper crucible, vacuumize, and sinter at 960°C molten.
[0046] (2) Add C, P and S at the same time under vacuum conditions and stir evenly, then add Be and Si at the same time, stir evenly again, keep warm for 50min, and draw wire into shape under vacuum conditions.
[0047] (3) Under the condition of pressurizing 40Mpa with krypton gas, cool to 720°C at a cooling rate of 50°C / min, hold for 50 minutes, and then cool down to room temperature at a cooling rate of 50°C / min to obtain a finished heating wire material. The diameter of the heating wire material prepared under this condition is 0.10mm; t...
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