A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Preparation method of disposable lining crucible and disposable lining crucible
The invention discloses a preparation method of a disposable lining crucible, which comprises the following steps: (1) batching and ball-milling: adding a fused quartz material, a corundum material, aluminum powder, kaolin, polyvinyl alcohol, a water reducing agent, methyl cellulose, a binding agent and water into a ball mill for ball-milling to obtain slurry; (2) high-pressure slip casting: injecting the slurry into a microporous resin mold at the pressure of 0.8-1.5 MPa, maintaining the pressure for 30-40 minutes, and demolding to obtain a blank body; (3) drying: drying the blank body at 50-60 DEG C for 6-10 hours, then heating to 80-120 DEG C, and drying for 6-10 hours; and (4) firing: calcining the blank body at 1100-1300 DEG C for 25-50 hours, thereby obtaining the product. The disposable crucible prepared by the preparation method has excellent high-temperature breaking strength, high-temperature compressive strength, high-temperature refractoriness under load and high-temperature thermal stability, and can meet the requirements of the precision casting industry.
本发明公开了一种一次性内衬坩埚的制备方法，包括以下步骤：(1)配料球磨：将熔融石英材料、刚玉材料、铝粉、高岭土、聚乙烯醇、减水剂、甲基纤维素、结合剂及水加入球磨机中进行球磨，得到浆料；(2)高压注浆成型：将所述浆料以0.8‑1.5MPa的压力注入微孔树脂模具中，并保压30‑40min后脱模，得到胚体；(3)干燥：将所述胚体在50‑60℃下干燥6‑10h，然后升温至80‑120℃干燥6‑10h；(4)烧成：将所述胚体在1100‑1300℃下煅烧25‑50h，即得。该制备方法制备得到的一次性坩埚具有优异的高温抗折强度、高温抗压强度、高温荷重软化温度及高温热稳定性，能满足精密铸造业的要求。
Preparation method of disposable lining crucible and disposable lining crucible
The invention discloses a preparation method of a disposable lining crucible, which comprises the following steps: (1) batching and ball-milling: adding a fused quartz material, a corundum material, aluminum powder, kaolin, polyvinyl alcohol, a water reducing agent, methyl cellulose, a binding agent and water into a ball mill for ball-milling to obtain slurry; (2) high-pressure slip casting: injecting the slurry into a microporous resin mold at the pressure of 0.8-1.5 MPa, maintaining the pressure for 30-40 minutes, and demolding to obtain a blank body; (3) drying: drying the blank body at 50-60 DEG C for 6-10 hours, then heating to 80-120 DEG C, and drying for 6-10 hours; and (4) firing: calcining the blank body at 1100-1300 DEG C for 25-50 hours, thereby obtaining the product. The disposable crucible prepared by the preparation method has excellent high-temperature breaking strength, high-temperature compressive strength, high-temperature refractoriness under load and high-temperature thermal stability, and can meet the requirements of the precision casting industry.
本发明公开了一种一次性内衬坩埚的制备方法，包括以下步骤：(1)配料球磨：将熔融石英材料、刚玉材料、铝粉、高岭土、聚乙烯醇、减水剂、甲基纤维素、结合剂及水加入球磨机中进行球磨，得到浆料；(2)高压注浆成型：将所述浆料以0.8‑1.5MPa的压力注入微孔树脂模具中，并保压30‑40min后脱模，得到胚体；(3)干燥：将所述胚体在50‑60℃下干燥6‑10h，然后升温至80‑120℃干燥6‑10h；(4)烧成：将所述胚体在1100‑1300℃下煅烧25‑50h，即得。该制备方法制备得到的一次性坩埚具有优异的高温抗折强度、高温抗压强度、高温荷重软化温度及高温热稳定性，能满足精密铸造业的要求。
Preparation method of disposable lining crucible and disposable lining crucible
一种一次性内衬坩埚的制备方法及一次性内衬坩埚
PAN QIXIONG (author)
2023-08-25
Patent
Electronic Resource
Chinese
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