根据岩棉板密度、厚度以及使用环境的不同而有所变化。以下是一些具体信息：

　　It varies depending on the density, thickness, and usage environment of the rock wool board. Here are some specific information:

　　一般耐火极限 ：

　　General fire resistance limit:

　　岩棉板的耐火极限通常在1-2小时之间。板材越厚、密度越高，其耐火性能越好。

　　The fire resistance limit of rock wool board is usually between 1-2 hours. The thicker and denser the board, the better its fire resistance performance.

　　影响因素 ：

　　Influencing factors:

　　岩棉板的耐火极限还受到火灾等级的影响。在火灾等级较低的情况下，耐火极限时间会相应延长。

　　The fire resistance limit of rock wool board is also affected by the fire level. In cases of low fire severity, the fire resistance limit time will be correspondingly extended.

　　表面涂层也会影响岩棉板的耐火性能。如果表面涂有防火涂料或涂料，可以进一步提高其耐火性能。

　　The surface coating can also affect the fire resistance of rock wool board. If the surface is coated with fireproof paint or coating, its fire resistance performance can be further improved.

　　具体范围 ：

　　Specific scope:

　　有些岩棉板的耐火极限在1.5-3小时之间，防火性能较好的岩棉板甚至可以达到5小时。

　　The fire resistance limit of some rock wool boards is between 1.5-3 hours, and rock wool boards with better fire resistance can even reach 5 hours.

　　然而，也有岩棉板的耐火极限时间较短，可能只有1小时左右。

　　However, there are also rock wool boards with a shorter fire resistance limit time, possibly only about 1 hour.

　　使用建议 ：

　　Usage suggestion:

　　在选择岩棉板时，应综合考虑其耐火极限时间以及其他性能指标，以确保满足实际需求。

　　When choosing rock wool board, its fire resistance limit time and other performance indicators should be comprehensively considered to ensure that it meets actual needs.

　　使用过程中，应按照相关规定进行安装和使用，以保障其安全性能和耐久性。

　　During use, installation and use should be carried out in accordance with relevant regulations to ensure its safety performance and durability.

　　综上所述，岩棉板的耐火极限在1-5小时之间，具体取决于其密度、厚度、表面涂层以及使用环境。在选择和使用岩棉板时，应选择质量可靠的产品，并严格按照规定进行安装和使用，以确保其防火性能和安全性能。

　　In summary, the fire resistance limit of rock wool board is between 1-5 hours, depending on its density, thickness, surface coating, and usage environment. When selecting and using rock wool board, reliable products should be chosen, and installation and use should be strictly carried out in accordance with regulations to ensure its fire resistance and safety performance.

　　本文由济南岩棉板为您提供，我们的网站是：http://www.jnhxtcg.com我们将以全心全意的热情为您提供服务，欢迎您的访问！

　　This article is provided by Jinan rock wool board for you. Our website is: http://www.jnhxtcg.com We will provide you with wholehearted enthusiasm and welcome your visit!