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Manufacturing method of graphite mold material for hot bending of curved glass
The invention discloses a manufacturing method of a graphite mold material for hot bending of curved glass, and relates to the field of graphite products, and the manufacturing method comprises the following steps: blending calcined coke and tar carbon black in a ball mill, grinding, sieving to obtain an aggregate precursor, mixing with a modifier according to a certain ratio, preheating, carrying out high-temperature strong mixing with molten liquid asphalt, and carrying out high-temperature sintering to obtain the graphite mold material for hot bending of curved glass. A mixed bulk material with plasticity is prepared; granulating in a high-speed cooling mixer to obtain pressed powder, filling into a rubber mold, standing for exhausting, vibrating, sealing and vacuumizing, performing isostatic pressing to obtain a green body, putting into a stainless steel crucible, putting the stainless steel crucible filled with the green body into a car bottom furnace with a uniform temperature field, and roasting and carbonizing to obtain the high-strength and high-toughness ceramic. And finally, carrying out high-temperature graphitization treatment on the carbonized blank. The graphite mold material for hot bending of the curved glass prepared by the method has the characteristics of short preparation period, compact structure, good uniformity, high volume density, high mechanical strength, no pore defect, good oxidation resistance and the like.
本发明公开了一种曲面玻璃热弯用石墨模具材料制造方法，涉及石墨制品领域，包括：将煅后焦与焦油炭黑在球磨机共混磨粉，经过筛处理制得骨料前驱体，然后与改性剂按一定比例混合预热，与熔融的液态沥青进行高温强力混合，制得具备塑性的混合散状料；在高速冷却混合机中进行造粒，制得压粉，再装入橡胶模具中，静置排气、振动密封抽真空，再经等静压成型制得生坯，然后置入不锈钢坩埚内，将装有生坯的不锈钢坩埚放入温度场均匀的车底炉进行焙烧炭化，最后对炭化坯料进行高温石墨化处理。本发明方法制备的曲面玻璃热弯用石墨模具材料具有制备周期短、结构致密、均匀性好、体密高、机械强度高、无气孔缺陷、抗氧化性好等特点。
Manufacturing method of graphite mold material for hot bending of curved glass
The invention discloses a manufacturing method of a graphite mold material for hot bending of curved glass, and relates to the field of graphite products, and the manufacturing method comprises the following steps: blending calcined coke and tar carbon black in a ball mill, grinding, sieving to obtain an aggregate precursor, mixing with a modifier according to a certain ratio, preheating, carrying out high-temperature strong mixing with molten liquid asphalt, and carrying out high-temperature sintering to obtain the graphite mold material for hot bending of curved glass. A mixed bulk material with plasticity is prepared; granulating in a high-speed cooling mixer to obtain pressed powder, filling into a rubber mold, standing for exhausting, vibrating, sealing and vacuumizing, performing isostatic pressing to obtain a green body, putting into a stainless steel crucible, putting the stainless steel crucible filled with the green body into a car bottom furnace with a uniform temperature field, and roasting and carbonizing to obtain the high-strength and high-toughness ceramic. And finally, carrying out high-temperature graphitization treatment on the carbonized blank. The graphite mold material for hot bending of the curved glass prepared by the method has the characteristics of short preparation period, compact structure, good uniformity, high volume density, high mechanical strength, no pore defect, good oxidation resistance and the like.
本发明公开了一种曲面玻璃热弯用石墨模具材料制造方法，涉及石墨制品领域，包括：将煅后焦与焦油炭黑在球磨机共混磨粉，经过筛处理制得骨料前驱体，然后与改性剂按一定比例混合预热，与熔融的液态沥青进行高温强力混合，制得具备塑性的混合散状料；在高速冷却混合机中进行造粒，制得压粉，再装入橡胶模具中，静置排气、振动密封抽真空，再经等静压成型制得生坯，然后置入不锈钢坩埚内，将装有生坯的不锈钢坩埚放入温度场均匀的车底炉进行焙烧炭化，最后对炭化坯料进行高温石墨化处理。本发明方法制备的曲面玻璃热弯用石墨模具材料具有制备周期短、结构致密、均匀性好、体密高、机械强度高、无气孔缺陷、抗氧化性好等特点。
Manufacturing method of graphite mold material for hot bending of curved glass
一种曲面玻璃热弯用石墨模具材料制造方法
ZHAO SHIGUI (author) / LU QINGHONG (author) / ZHU GANG (author) / YANG BO (author) / DENG JIANGLONG (author)
2022-11-29
Patent
Electronic Resource
Chinese
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