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为了减轻井下设备的重量以及设计的需要,人们越来越多地使用各种新型材料,其中较理想的是铝、镁、钛等合金。但是这些合金都有产生可燃性机械火花的危险。为了解决这个问题捷克进行了一系列的试验和应用方面的研究。力求获得能防止产生可燃性机械火花的尽可能完善的表面防护。捷克同匈牙利合作在对煤矿支护特别是薄煤层单体液压支托的表面防护方面取得了成果。表面防护的种类很多。但其选择总是根据设备的种类、作用和适用性进行的。曾经采用过浸锌,其使用寿命不长,特别是那些干磨擦零件的寿命更
In order to reduce the weight of underground equipment and design needs, people are increasingly using a variety of new materials, of which aluminum, magnesium, titanium and other alloys are preferred. However, these alloys have the risk of producing flammable mechanical sparks. In order to solve this problem, the Czech Republic conducted a series of experiments and application studies. Strive to obtain the best possible surface protection against flammable mechanical sparks. The cooperation between the Czech Republic and Hungary has yielded results in the surface protection of the coal support, especially the thin seam single hydraulic support. There are many types of surface protection. However, the choice is always based on the type of equipment, its role and its applicability. Zinc has been used, its service life is not long, especially those parts of the dry friction more life