如何把握石膏粉的凝固时间

如何把握石膏粉的凝固时间！

　　石膏粉作为建筑材料的原料，如模型、线条等，许多建筑材料公司都自己制作。但早期生产也应注意相关事项，下面就来看看如何把握石膏粉的凝固时间。

　　Gypsum powder as raw materials for building materials, such as models, lines, etc., many building materials companies have their own production. But early production should also pay attention to the relevant matters, the following is to see how to grasp the setting time of gypsum powder.

　　石膏使用注意事项:

　　Notes for the use of Paris gypsum:

　　1. 石膏粉与水混合后，若水粉比例不合适，取适量调和。

　　1. After mixing gypsum powder with water, if the proportion of water powder is not appropriate, take appropriate amount of mixing.

　　2. 搅拌速度不宜过快，以免人为地带入气泡，形成过多的结晶中心，导致石膏膨胀，强度降低。

　　2. Mixing speed should not be too fast, so as not to artificially bring in bubbles, forming too many crystallization centers, resulting in gypsum expansion and strength reduction.

　　3.灌注模型由一侧逐渐向另一侧移动，通过摇动灌注，消除气泡，填充所有细小部位。

　　3. The perfusion model moves gradually from one side to the other. By shaking the perfusion, the bubbles are eliminated and all the small parts are filled.

　　石膏在凝固过程中体积膨胀，影响熟石膏凝固速率的因素有熟石膏质量、熟石膏掺水比例不当、搅拌时间和速度、水温等。你可以用建筑胶水。另外，还可以使用免粘石膏粉，直接用水混合即可，水、石膏粉的混合比，水越多石膏凝固的时间越长，石膏密度越低;反之，水越多，凝固时间越短，密度越大，牢度越高。

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