Method for the producing and regenerating of massive seamless active silica body and products produced thereby
A production method and active silicon technology, applied in chemical instruments and methods, inorganic chemistry, silicon compounds, etc., can solve the problems of limited application range and failure to make seamless blocks, so as to improve the quality of life and facilitate painting , the effect of wide application
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Embodiment 1
[0028] Embodiment 1: with 1.1Kg of pure white chemically pure powdery diatomite under 150 mesh sieves, mix gradually with 0.8Kg macromolecular protein glue solution (being 1: 0.4 is formulated by protein glue and water by weight ratio) and Stir evenly, pour into a metal sieve with a hole diameter of 1.0mm, and sieve while stirring, until all the sieves are finished; pour the sieved mixed powder into a steel mold with a diameter of 25.0CM and a height of 5.0CM, and apply vacuum pressure , then use a hydraulic press to pressurize to 2.5MPa, keep the pressure for 1 minute, release the pressure, demould, take it out, and place it on a glass plate to dry (or dry) to form a disc-shaped product with a diameter of 25CM and a thickness of 3.0CM. Embryo. Some of the surface of the plate are embossed with artistic patterns, while others are without patterns. Put the disc in a 26CM square and 4.0CM deep covered metal box, then put the metal box into the vacuum activation furnace, and pum...
Embodiment 2
[0029] Embodiment 2: mix and stir with 4.5Kg of white chemically pure powdery silica gel under 150 mesh sieves and 3.5Kg macromolecule protein glue solution (being 1: 0.45 to be formulated by protein glue and water by weight ratio) and stir, pour into In the metal sieve with an aperture of 1mm, sieve while stirring until all the materials are screened out, then pour the material into a steel mold with an aperture of 15.0CM and a height of 60CM, apply vacuum pressure, and then pressurize with hydraulic pressure To 3.0MPa, hold the pressure for 3 minutes, take it out from the mold, and it will become a cylinder. Put the cylinder into a metal barrel and cover it, then put it into a vacuum activation furnace, and pump the furnace to 2×10 3 The vacuum degree of Pa is heated to 220°C at a speed of 0.4°C / min, and the heat preservation and pressure are maintained for 5 hours. Afterwards, it is lowered to room temperature at a rate of 0.5°C / min, and then the pressure in the furnace is...
Embodiment 3
[0030] Embodiment 3: will pass through the powder diatomite of 150 mesh sieves or silica gel 5Kg, fully mix with 4.4Kg macromolecule protein glue solution (being 1: 0.5 to prepare by protein glue and water by weight ratio), stir, pass through After sieving (the diameter of the sieve hole is 1 mm), it is poured into a silicone rubber mold with a Buddha statue, vacuum suction is carried out, and then mechanical pressure is applied, and the pressure is maintained for 8 hours, and the pressure is released, demoulded and taken out, which is the Buddha statue body. Let it dry by itself or put it in a drying room for 1-5 days. Then put it into a metal barrel and cover it, then put it into a vacuum activation furnace, and raise the vacuum in the furnace to 2.5×10 within 10 minutes. 3 Pa, then raise the temperature to 200°C at a rate of 0.3°C / min, hold the heat for 6 hours, then drop to room temperature at a rate of 0.5°C / min, take out the furnace pressure to normal pressure within 20 ...
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