涩老板在线免费视频_午夜成人精品_神马理论午夜,,_亚洲有薄码区久久欧美精品一区_97人人色_神马在线精品_成人熟女一区二区_亚洲二区三区四区_人妻午夜免费_大鸡巴猛男爆操骚逼国产一区二区_丁香婷婷久久一区二区三区_岛国内射美女_亚洲一级电影,亚洲欧美日韩国产最新版,亚洲五月综合缴情综合久久本,少妇色情喷水又紧又爽小说,巜上司的少妇的滋味,国产精品三级女人国产香蕉,亚洲最好的免费电影,欧美亚洲国产成人精品,国产永久一区二区三区,亚洲综合一区无码精品,歳の熟女セックス,内射带小孩熟妇,果冻传媒在线看免费视频观看,成人欧美一区二区三区片,亚洲 片内射欧美美妇,一本无码人妻在中文字幕免费,亚洲无毛视频,中文字幕丰满孑伦无码专区,亚洲爆乳无码专区色戒纶理,肉乳床欢无码片动漫软件,欧美日韩一区二区另类,久热只有精品在线直播,精品亚洲一区二区在线播放,精品国产乱码久久久久久影片,国产一级高清在线观看,国产精品福利在线一区,成人动漫下载,乱伦性爱视频,xo无码AV毛,国产黄A片免费网站免费,日韩欧美一级特黄特色大片

　　Centrifugal fan is essentially a variable flow and constant pressure device. When the rotating speed is fixed, the theoretical curve of pressure flow of centrifugal fan should be a straight line. The actual characteristic curve is bent due to internal loss. The change of inlet temperature or density has a great influence on the pressure produced by centrifugal fan. For a given inlet, the pressure is minimum at the maximum inlet temperature (minimum air density).

　　對于給定的壓力和流量特性曲線，有一個功率和流量特性曲線。當風機以恒定速度運行時，給定流量所需的功率隨著進口溫度的降低而增大。離心風機驅動部分的磨損是常見的設備問題，包括抽風機的軸承位置、軸承腔的磨損、風機軸的軸承位置等。

　　For a given pressure and flow characteristic curve, there is a power and flow characteristic curve. When the fan operates at a constant speed, the power required for a given flow increases with the decrease of the inlet temperature. The wear of the driving part of the centrifugal fan is a common equipment problem, including the bearing position of the suction fan, the wear of the bearing cavity, the bearing position of the fan shaft, etc.

　　鑒于上述離心風扇的問題,傳統的維修方法包括堆焊、熱噴涂、電動刷牙,等等,但都有一定的缺點:由高溫引起的熱應力的補焊不能完全消除,而且很容易形成物質損失,導致零件的彎曲或斷裂;而刷鍍則受鍍層厚度限制，容易剝落，而以上兩種方法都是金屬修復金屬，不能改變“硬到硬”的關系，在各種力量的配合下，仍會形成重新磨損的橡皮滾筒。

　　In view of the above problems of centrifugal fan, the traditional maintenance methods include surfacing, thermal spraying, electric brushing, etc., but they all have certain disadvantages: the repair welding of thermal stress caused by high temperature can not be completely eliminated, and it is easy to form material loss, resulting in bending or fracture of parts; However, brush plating is limited by the thickness of the coating, which is easy to peel off. The above two methods are metal repair metal, which can not change the "hard to hard" relationship. Under the coordination of various forces, the rubber drum will be formed again.

　　在當代西方國家，高分子復合材料多用于修復上述問題，應用更廣泛的是美國福斯特藍技術體系，該體系具有超強的附著力、優異的抗壓強度等綜合性能，可拆卸加工。不存在熱應力，修復厚度不受限制，同時，產品具有金屬數據無讓步，能吸收設備的震動和震動，防止再次磨損的可能性。

　　In the contemporary western countries, polymer composite materials are mostly used to repair the above problems, the most widely used is the American foster blue technology system, which has strong adhesion, excellent compressive strength and other comprehensive properties, and can be disassembled and processed. There is no thermal stress, and the repair thickness is unlimited. At the same time, the product has metal data without concession, which can absorb the vibration and vibration of the equipment and prevent the possibility of re abrasion.