Method for preparing glass wool core
A production method and technology of glass wool, applied in glass manufacturing equipment, manufacturing tools, synthetic cellulose/non-cellulose material pulp/paper, etc., can solve the problems of inconsistent product quality, failure to achieve heat insulation effect, etc., and achieve process Simple and easy to implement, good heat insulation effect and uniform thickness
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Embodiment 1
[0019] The preparation method of glass wool core material of the present invention comprises the following steps:
[0020] (1) raw materials are prepared, in mass %, 2% dolomite, 15% boronite, 3% calcium oxide and 80% cullet are mixed;
[0021] (2) Melting and fibrosis of raw materials to obtain glass fibers with a diameter of 3 microns, and the melting temperature is 1200 ° C;
[0022] (3) The glass fiber in step (2) is beaten and hot-pressed to form glass wool. When beating, the glass fiber, water and sulfuric acid are operated at a ratio of 1:40:0.003, and the pH value is controlled at 4. The hot-pressed Molding is carried out at a temperature of 400°C, and the heating time is 2 minutes;
[0023] (4) Dry the formed glass wool at a drying temperature of 300°C and a drying time of 5 minutes;
[0024] (5) Finished product cutting, including the following processes:
[0025] (a) The dried core material is introduced into the slitting knife by the guide roller for slitting: ...
Embodiment 2
[0028] (1) raw materials are prepared, in mass %, 3% dolomite, 18% boronite, 4% calcium oxide and 75% cullet are mixed;
[0029] (2) Melting and fiberizing of raw materials to obtain glass fibers with a diameter of 3.5 microns, and the melting temperature is 1300° C.;
[0030] (3) The glass fiber in step (2) is beaten and hot-pressed to form glass wool. When beating, the glass fiber, water and sulfuric acid are operated at a ratio of 1:45:0.0035, and the pH value is controlled at 3. The hot-pressed Molding is carried out at a temperature of 380°C, and the heating time is 2 minutes;
[0031] (4) Dry the formed glass wool at a drying temperature of 280°C and a drying time of 5 minutes;
[0032] (5) Finished product cutting, including the following processes:
[0033] (a) The dried core material is introduced into the slitting knife by the guide roller for slitting:
[0034] (b) The slitting core material is introduced into the cross-cutting machine through the transition roll...
Embodiment 3
[0036] (1) raw materials are prepared, in mass %, 4% dolomite, 20% boronite, 6% calcium oxide and 70% cullet are mixed;
[0037] (2) Melting and fiberizing of raw materials to obtain glass fibers with a diameter of 4 microns, and the melting temperature is 1400° C.;
[0038] (3) The glass fiber in step (2) is beaten and hot-pressed to form glass wool. When beating, the glass fiber, water and sulfuric acid are operated at a ratio of 1:50:0.004, and the pH value is controlled at 2. The hot-pressed Molding is carried out at a temperature of 420°C, and the heating time is 2 minutes;
[0039] (4) Dry the formed glass wool at a drying temperature of 320°C and a drying time of 5 minutes;
[0040] (5) Finished product cutting, including the following processes:
[0041] (a) The dried core material is introduced into the slitting knife by the guide roller for slitting:
[0042] (b) The slitting core material is introduced into the cross-cutting machine through the transition roller ...
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Abstract
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