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A platform for research: civil engineering, architecture and urbanism
Process for preparing ceramic rear cover by grouting
The invention discloses a process for preparing a ceramic rear cover by grouting. The preparation process comprises the following steps of: preparing raw materials, namely zirconium oxide powder, organic alkali tetramethyl ammonium hydroxide and deionized water; putting the raw materials into a ball mill for ball milling; after ball milling, adding ammonium persulfate into a mixture for defoamingtreatment so as to obtain ceramic slurry; injecting the ceramic slurry into a cavity of a microporous mold from an injection port of the microporous mold; conducting vacuumizing, discharging water inthe cavity , and conducting demolding when the thickness of a ceramic rear cover green body in the micropore mold achieves a preset thickness; and sintering the green body in a sintering furnace. According to the process of the invention, the zirconium oxide powder is used as a raw material of the ceramic mobile phone rear cover, so that the yield, drop resistance and wear resistance of the ceramic mobile phone rear cover are improved; and the green body is placed in the sintering furnace to be sintered for 1-3 h at the temperature of 1800-2200 DEG C, pores in the formed body are reduced, combination between particles is enhanced, mechanical strength is improved, and therefore the formed ceramic sintered part with the hardness comparable to that of sapphire is obtained.
本发明公开了一种注浆制备陶瓷后盖工艺，所述制备工艺如下：原料准备：氧化锆粉体、有机碱四甲基氢氧化胺、去离子水；将上述中的原料置于球磨机中进行球磨；球磨后在混合料中加入过硫酸铵进行脱泡处理，得到陶瓷浆料；将陶瓷浆料从微孔模具的注入口中注入至微孔模具的型腔中；抽真空，将型腔中的水分排出，待微孔模具内的陶瓷后盖生坯成型至预定厚度时，进行脱模；坯体放入烧结炉中烧结；本发明的有益效果是：氧化锆粉体作为陶瓷手机后盖的原材料，有助于提高陶瓷手机后盖的良品率、抗摔耐磨性能；坯体放入烧结炉中在1800‑2200℃下烧结1‑3h，有助于减少成形体中气孔，增强颗粒之间结合，提高机械强度，从而得到硬度堪比蓝宝石的成型陶瓷烧结件。
Process for preparing ceramic rear cover by grouting
The invention discloses a process for preparing a ceramic rear cover by grouting. The preparation process comprises the following steps of: preparing raw materials, namely zirconium oxide powder, organic alkali tetramethyl ammonium hydroxide and deionized water; putting the raw materials into a ball mill for ball milling; after ball milling, adding ammonium persulfate into a mixture for defoamingtreatment so as to obtain ceramic slurry; injecting the ceramic slurry into a cavity of a microporous mold from an injection port of the microporous mold; conducting vacuumizing, discharging water inthe cavity , and conducting demolding when the thickness of a ceramic rear cover green body in the micropore mold achieves a preset thickness; and sintering the green body in a sintering furnace. According to the process of the invention, the zirconium oxide powder is used as a raw material of the ceramic mobile phone rear cover, so that the yield, drop resistance and wear resistance of the ceramic mobile phone rear cover are improved; and the green body is placed in the sintering furnace to be sintered for 1-3 h at the temperature of 1800-2200 DEG C, pores in the formed body are reduced, combination between particles is enhanced, mechanical strength is improved, and therefore the formed ceramic sintered part with the hardness comparable to that of sapphire is obtained.
本发明公开了一种注浆制备陶瓷后盖工艺，所述制备工艺如下：原料准备：氧化锆粉体、有机碱四甲基氢氧化胺、去离子水；将上述中的原料置于球磨机中进行球磨；球磨后在混合料中加入过硫酸铵进行脱泡处理，得到陶瓷浆料；将陶瓷浆料从微孔模具的注入口中注入至微孔模具的型腔中；抽真空，将型腔中的水分排出，待微孔模具内的陶瓷后盖生坯成型至预定厚度时，进行脱模；坯体放入烧结炉中烧结；本发明的有益效果是：氧化锆粉体作为陶瓷手机后盖的原材料，有助于提高陶瓷手机后盖的良品率、抗摔耐磨性能；坯体放入烧结炉中在1800‑2200℃下烧结1‑3h，有助于减少成形体中气孔，增强颗粒之间结合，提高机械强度，从而得到硬度堪比蓝宝石的成型陶瓷烧结件。
Process for preparing ceramic rear cover by grouting
一种注浆制备陶瓷后盖工艺
CHENG BAOFENG (author) / WANG XINPING (author) / LIANG LI (author)
2020-08-25
Patent
Electronic Resource
Chinese
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