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如何延長石膏粉的凝固時間？

來源：http://www.gyxxhyy120.com 日期：2022-05-07 發布人：

膏粉的凝固時間一般取決與石膏粉的標號，標號高的一般凝結的快。石膏粉和水反應的速度是很快的，一般的操作時間只有幾分鐘，1分鐘的時間將石膏粉撒入水中，2分鐘攪拌，3分鐘倒模，很快會硬化。

The setting time of gypsum powder generally depends on the grade of gypsum powder. Those with high grade generally set fast. The reaction speed between gypsum powder and water is very fast. The general operation time is only a few minutes. The gypsum powder will be sprinkled into the water in 1 minute, stirred in 2 minutes and inverted in 3 minutes, and will soon harden.

一、建筑石膏粉：在裝修粉刷過程中，需要延長石膏粉的凝固時間。不過讓石膏凝固速度降慢的方法是在把石膏粉加水的時候使用溫度較低的涼水，水越涼凝固速度越慢，反之用熱水會很快。如果覺得這個辦法不行，還可以加入檸檬酸或者先在石膏粉里摻好膩子粉，在水里摻上108膠白乳膠和纖維素，再調和。

1、 Building gypsum powder: in the process of decoration and painting, it is necessary to extend the setting time of gypsum powder. However, the way to slow down the setting speed of gypsum is to use cold water with lower temperature when adding water to gypsum powder. The cooler the water is, the slower the setting speed is. On the contrary, using hot water will be fast. If you think this method doesn't work, you can also add citric acid or mix putty powder in gypsum powder, 108 glue white latex and cellulose in water, and then mix.

二、模具石膏粉：如果硬化速度過快，可以往水中加些緩凝劑，如：乙醇(酒精)約占百分之6-8，可以延長操作時間。一般的模型，使用建筑石膏粉或高度石膏粉。如果鑄模用，那需要專門的石膏鑄粉。另外需要注意石膏粉與水的比例，水的多少直接影響石膏模的質量。

2、 Mold gypsum powder: if the hardening speed is too fast, some retarders can be added to the water. For example, ethanol (alcohol) accounts for about 6-8%, which can prolong the operation time. The general model uses building gypsum powder or high gypsum powder. If the mold is used, special gypsum casting powder is required. In addition, attention should be paid to the ratio of gypsum powder to water. The amount of water directly affects the quality of gypsum mold.

建筑石膏粉如何使用凝固后不開裂

How to use building gypsum powder without cracking after solidification

石膏粉的使用也是有技巧的，非常是石膏粉的凝固時間的掌握：凝固時間主要與加水量有關系（添加劑另外說明），次之與攪拌時間、澆鑄容器、溫度、濕度有關系。首先水、石膏粉混合比，水越多石膏凝結時間越長，石膏密度越低、牢度越低，水越少凝結時間越短、密度越大、牢度越高，具體需根據使用需求來控制。然后談下攪拌時間，一般而言攪拌到石膏粉非常均勻即可澆鑄，一般控制在5分鐘之內，攪拌時間越長，石膏粉凝固時間越快。

The use of gypsum powder is also skilful, especially the mastery of the setting time of gypsum powder: the setting time is mainly related to the amount of water added (additives are otherwise specified), followed by the mixing time, casting container, temperature and humidity. Firstly, the mixing ratio of water and gypsum powder. The more water, the longer the setting time of gypsum, the lower the density and fastness of gypsum, the less water, the shorter the setting time, the greater the density and the higher the fastness. The specific needs to be controlled according to the use requirements. Then let's talk about the mixing time. Generally speaking, the gypsum powder can be cast after mixing until it is very uniform. It is generally controlled within 5 minutes. The longer the mixing time, the faster the solidification time of gypsum powder.

以上就是為大家介紹的有關濟南石膏粉http://www.gyxxhyy120.com的詳細的介紹,希望對您有所幫助.如果您有什么疑問的話,歡迎聯系我們.我們將以的態度,為您提供服務

The above is about Jinan gypsum powder http://www.gyxxhyy120.com I hope it will be helpful to you If you have any questions, please contact us We will provide you with professional service

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