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对防火门芯板的生产强度要求

用作防火门的门芯板其主要性能是轻质、防火、隔音、保温等。众所周知,强度和容重是成正比的,也就是说强度越高容重就越大,经常开启运动的安全门是一个复合结构。
The main performance of the door core board for the fire door is light, fireproof, sound insulation, heat preservation and so on. As we all know, strength and density is proportional to, that is, the higher the strength of bulk density, the more often open the safety door is a composite structure.
强度是靠金属框架和金属外壳来完成的,所以不能片面地为追求门芯板的强度而提高密度指标,应发挥其轻质、防火的优势。质量越轻,保温、隔热的性能越高。越有利于减轻门的整体重量。据我们收集到的资料,永康两家厂的要求,就差别很大。
Strength is by the metal frame and metal shell to complete, so can not be one-sided pursuit of the strength of the door core board and improve the density index, should play its light, fire advantage. The lighter weight, the higher the performance of heat preservation and heat insulation. The more conducive to reduce the overall weight of the door. According to the information we have collected, the requirements of the two plants in Yongkang, it is very different.
目前,有些门芯板生产厂家为了提高强度,加大了MgC1的用量,采用高浓度卤液。同时,又不检测MgO的活性含量,自始至终使用一个死配方,产品强度当时确实提高了,但给今后应用中的“返卤”,埋下了不可剔除的隐患! 如有一家厂的配比中,采用波美度30的卤液5Okg,MgO 50kg,(不管、也不知其活性含量多少),我们预测,若活性按60%计,则摩尔比为4.89。因活性是随着存放期的延长而不断降低,若活性降到50%计,则摩尔比为4.08,均不能行成稳定的5.1.8相结构,潜伏着“返卤”危险,产品强度也会逐步减低。
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At present, some of the door core board manufacturers in order to improve the strength, increase the amount of MgC1, using high concentration brine. At the same time, it does not detect the activity of MgO content, from start to finish a dead formula, product strength was indeed improve the, but to the future application of "back to the brine", buried a hidden danger can not be removed! If the ratio of a factory, the Baume degrees 30 brine solution 5Okg and MgO 50kg, no matter, I do not know its activity content how many), we predict, if activated by 60% of the meter, molar ratio of 4.89. Because activity is with the storage period is extended continuously decreased, if the activity was reduced to 50% of the total, molar ratio of 408, not into stable 5.1.8 phase structure, potential "halogen" risk return and strength of the products will gradually reduce.
有人宣传用“卤晶”即无水氯化镁,就不会返卤这是一种误导。
Some people promote the use of halogen crystal, that is, anhydrous magnesium chloride, will not return to halogen this is a kind of misleading.
用于菱镁制品的增强材料,选购应附合《菱镁制品用玻璃纤维布》WB/T1036—2006标准。但要禁用高碱玻纤网布作为增强材料。有人讲防火门芯板,不许用玻纤网布增强的说法,我们认为是没有道理的。因植物纤维、有机纤维虽可增强,但耐火性能差。耐久性也远不如无机玻璃纤维,它是菱镁制品的首选增强材料。
For reinforced magnesite products, the purchase should be attached "magnesium products, glass fiber cloth" WB / T1036 - 2006 standard. But to disable high alkali glass fiber mesh fabric as the reinforcement material. Some people talk about the fire door core board, not allowed to use glass fiber mesh reinforced statement, we believe that there is no reason. Due to the plant fiber, organic fiber can be enhanced, but the poor performance of the fire. Durability is far better than the inorganic glass fiber, it is the preferred material reinforced magnesite products.
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This paper by Formica HPL help, more relevant content, please click: / us the details for you to answer. Welcome your presence!

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