A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a method for preparing a hot casting mold. Cork powder, rare earth, ceramic aggregate, gypsum powder and silica gel are taken as raw materials. The method comprises the following process steps: (a), adding the cork powder, ceramic aggregate and gypsum powder into a stirrer for mixing, thereby forming a mixture; (b), heating the mixture formed in the step (a), controlling the temperature to be 70-80 DEG C, slowly adding silica gel in the heating process, uniformly stirring, finally adding the rare earth after the silica gel addition is finished, heating at a speed of 5-8 DEG C per hour, stopping heating when the temperature rises to 120-150 DEG C, and preserving the temperature for 3-5 hours; and (c) performing injection molding on the mixture subjected to complete heat preservation in the step (b), cooling to room temperature, thereby obtaining the finished product. The method disclosed by the invention has the beneficial effects that the production process is simple and reliable, the manufactured mold is stable in performance, the toughness and hardness are enhanced by virtue of the added silica gel and ceramic aggregate, the service life can be greatly prolonged, the production cost is reduced, and the economical benefits are improved.
The invention discloses a method for preparing a hot casting mold. Cork powder, rare earth, ceramic aggregate, gypsum powder and silica gel are taken as raw materials. The method comprises the following process steps: (a), adding the cork powder, ceramic aggregate and gypsum powder into a stirrer for mixing, thereby forming a mixture; (b), heating the mixture formed in the step (a), controlling the temperature to be 70-80 DEG C, slowly adding silica gel in the heating process, uniformly stirring, finally adding the rare earth after the silica gel addition is finished, heating at a speed of 5-8 DEG C per hour, stopping heating when the temperature rises to 120-150 DEG C, and preserving the temperature for 3-5 hours; and (c) performing injection molding on the mixture subjected to complete heat preservation in the step (b), cooling to room temperature, thereby obtaining the finished product. The method disclosed by the invention has the beneficial effects that the production process is simple and reliable, the manufactured mold is stable in performance, the toughness and hardness are enhanced by virtue of the added silica gel and ceramic aggregate, the service life can be greatly prolonged, the production cost is reduced, and the economical benefits are improved.
New method of preparing casting molds and mold cores
| Engineering Index Backfile | 1959
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| Engineering Index Backfile | 1959
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