The products produced by fireproof board manufacturers always play a very important role in life, but in the process of use, there will be cracks, so what causes this.

其實防火板會出現(xiàn)這種開膠的現(xiàn)象還是經(jīng)常能夠見到的，會出現(xiàn)這種情況，主要是因為吸水率的問題所造成的，如果大于一定的標準，那么防火板就會出現(xiàn)開膠的現(xiàn)象。其次就是有關吸水膨脹率的現(xiàn)象，吸水膨脹率要小于百分之四，如果防火板的吸水膨脹率不能達到它的使用要求，所以也是會出現(xiàn)開膠的現(xiàn)象的，還有一個原因就是防火板所使用的膠太少所造成的，呈現(xiàn)分層。
                

In fact, the phenomenon of opening glue is often seen in fireproof board, which is mainly caused by the problem of water absorption. If it is greater than a certain standard, the phenomenon of opening glue will appear in fireproof board. The second is about the phenomenon of water swelling rate. The water swelling rate is less than 4%. If the water swelling rate of the fireproof board can't meet its use requirements, the phenomenon of glue opening will also appear. Another reason is that the glue used in the fireproof board is too little, resulting in delamination.

另外，如果防火板在熱壓時，沒有壓組成一體，在拆模或許運用中就會出現(xiàn)膜紙分層，了解了相關原因，我們可以對癥下藥，購買合格的產(chǎn)品。

In addition, if the fire-proof board is not pressed as a whole during hot pressing, lamination of membrane paper may appear during formwork removal and application. After understanding the relevant reasons, we can suit the remedy to the case and purchase qualified products.