lime glass tube
A technology of glass tube and lime material, applied in the field of lime material glass tube and its preparation, which can solve the problems of small tolerance variation range of glass tube outer diameter, large variation range of outer diameter, insufficient step blowing, etc., and achieve stable and melting glass liquid The effect of high efficiency and long material resistance
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Embodiment 1
[0023] A preparation method for a lime material glass tube, comprising the following steps:
[0024] (1) Ingredients: Add the raw materials in the above parts by weight in the order of lime, soda ash, quartz sand, sodium nitrate, potassium feldspar powder, dolomite powder, calcite powder, borax sodium sulfate, tourmaline, and silicon carbide. Mix well in the mixer;
[0025] (2) Melting: Keep the temperature stable, the flame length stable, the temperature constant at 1500°C, and burn for 24 hours to fully melt the raw materials;
[0026] (3) Nucleation and crystallization: constant temperature of 1280 ° C, burning for 24 hours, the temperature is required to be stable and uniform during combustion, and the flame is full, so that the glass can be fully nucleated and crystallized;
[0027] (4) Forming: forming glass with forming equipment;
[0028] (5) Annealing: Keep the temperature at 540°C±3 for 24 hours to eliminate stress, cold frying and other phenomena.
[0029] The st...
Embodiment 2
[0032] A preparation method for a lime material glass tube, comprising the following steps:
[0033] (1) Ingredients: Add the raw materials in the above parts by weight in the order of lime, soda ash, quartz sand, sodium nitrate, potassium feldspar powder, dolomite powder, calcite powder, borax sodium sulfate, tourmaline, and silicon carbide. Mix well in the mixer;
[0034] (2) Melting: Keep the temperature stable, the flame length stable, the temperature constant at 1500°C, and burn for 24 hours to fully melt the raw materials;
[0035] (3) Nucleation and crystallization: constant temperature of 1280 ° C, burning for 24 hours, the temperature is required to be stable and uniform during combustion, and the flame is full, so that the glass can be fully nucleated and crystallized;
[0036] (4) Forming: forming glass with forming equipment;
[0037] (5) Annealing: Keep the temperature at 540°C±3 for 24 hours to eliminate stress, cold frying and other phenomena.
[0038] The st...
Embodiment 3
[0041] A preparation method for a lime material glass tube, comprising the following steps:
[0042] (1) Ingredients: Add the raw materials in the above parts by weight in the order of lime, soda ash, quartz sand, sodium nitrate, potassium feldspar powder, dolomite powder, calcite powder, borax sodium sulfate, tourmaline, and silicon carbide. Mix well in the mixer;
[0043] (2) Melting: Keep the temperature stable, the flame length stable, the temperature constant at 1500°C, and burn for 24 hours to fully melt the raw materials;
[0044] (3) Nucleation and crystallization: constant temperature of 1280 ° C, burning for 24 hours, the temperature is required to be stable and uniform during combustion, and the flame is full, so that the glass can be fully nucleated and crystallized;
[0045] (4) Forming: forming glass with forming equipment;
[0046] (5) Annealing: Keep the temperature at 540°C±3 for 24 hours to eliminate stress, cold frying and other phenomena.
[0047] The st...
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