女人怎么靠自己赚钱

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做好三个“定期”,为矿用铰接顶梁持久“续航”

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女人怎么靠自己赚钱  

须用耐火材料对矿用铰接顶梁进行必要的维护。以前未采用防火涂料或防火漆处理


★定期防锈防腐保护

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女人怎么靠自己赚钱  

分析产生变形原因。提出治理方案并马上实施,以防矿用铰接顶梁工程产生更大的破坏


★定期防火处理保护

钢材的耐温性较差,其许多性能随温度升降而变化,当温度达到430-540℃之间时,钢材的屈服点、抗拉强度和弹性模量将急剧下降,失去承载能力。须用耐火材料对矿用铰接顶梁进行必要的维护。以前未采用防火涂料或防火漆处理。建筑物的耐火能力取决于建筑构件耐火性能的好坏,在火灾发生时其承载能力应能延续一些时间,使人们能安全疏散、抢救物资和扑灭火灾。防火措施为:所以外露矿用铰接顶梁刷防火涂料,具体要求是:钢梁耐火时间为1.5h,钢柱耐火时间为2.5h,使其符合建筑规范要求。【具体可参考《矿用铰接顶梁支护特点明显为矿井采煤机械化提供了有利条》的相关内容】

女人怎么靠自己赚钱  

矿用铰接顶梁生锈对构件破坏不仅表现为对构件有效截面的减薄上,还表现为构件表面产生的“锈坑”


★定期变形监测维护

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女人怎么靠自己赚钱  

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