backed up 怎么理解?(关于滤网)? temporary stainless steel screens of 100 mesh or finer, backed up by perforated steel plates, should be installed to the downstream side of the jumpers for collecting dirt that will be freed during the flushing. 由冲孔钢板支撑的临时性不锈钢滤网(小于等于100网目),应安装在jumper(呵呵,不知道是不是跳线的意思)的下游,用于滤除冲洗过程中游离的污垢。 这个东西不像是设备,倒像是我见过的一种滤芯,肯定是两层的,一层预滤,一层精滤。查看更多
柠檬酸对不锈钢316L腐蚀有多严重? 如果输送,可以考虑玻璃及塑料等材质 corrosion. aqueous solutions of citric acid are mildly corrosive toward carbon steels. at elevated temperatures, 304 stainless steel is corroded by citric acid, but 316 stainless steel is resistant to corrosion. many aluminum, copper, and nickel alloys are mildly corroded by citric acid. in general, glass and plastics such as fiber glass reinforced polyester, polyethylene, polypropylene, poly(vinyl chloride), and cross-linked poly(vinyl chloride) are not corroded by citric acid.查看更多