对于离心风机的使用用户来说，磨损问题无时无处不在，那么离心风机在使用过程中会出现磨损分为多种情况，主要指轴承之间的磨损，再就是叶轮、整机的磨损这些磨损现象严重的话会直接导致风机的使用效果不能发挥出来，由于磨损的方面比价多，我们在本章节主要以叶轮的磨损问题出发点，为用户寻找几个能应对叶轮磨损问题的方法和技巧，以便能更好的使用风机。

For the users of centrifugal fans, the wear problem is always everywhere, so the wear of centrifugal fans in the process of use can be divided into many situations, mainly refers to the wear between bearings, and then the wear of impellers and the whole machine. If these wear phenomena are serious, it will directly lead to the failure of the use effect of the fans. Because there are many aspects of wear, we mainly focus on the wear of impellers in this chapter, Find several methods and skills for users to deal with impeller wear, so that they can better use the fan.

改进工艺路线是一个比较典型的方法，尽量将离心风机置于除尘器之后，如：风机置于增湿塔或管道增湿之后，烘干热源抽风机置于除尘器之后均大大利于防止风机的磨损，表面粘贴或焊接陶瓷，将耐磨工程陶瓷利用高强度耐高温胶粘剂或特殊焊接工艺复合在风机叶片表面上，该技术要解决防脱落问题。等离子堆焊，堆焊时叶片变形大，而且反复焊接会导致叶面产生裂缝，易产生事故。对叶片表面可以进行渗碳，渗碳工艺难度大，实际渗碳时，渗碳层的部位和厚度要由叶片厚度和磨损情况以及渗碳工艺决定。热喷涂，采用等离子喷涂方法或氧乙炔火焰，在叶片磨损表面喷涂陶瓷或碳化钨或者喷焊镍基+碳化钨合金。

Improving the process route is a typical method. Try to put the centrifugal fan behind the dust collector. For example, putting the fan after the humidification tower or pipe humidification, and placing the drying heat source exhaust fan behind the dust collector will greatly help to prevent the wear of the fan. Paste or weld ceramics on the surface, and compound the wear-resistant engineering ceramics on the fan blade surface with high-strength high-temperature adhesive or special welding process, This technology should solve the problem of falling off prevention. During plasma surfacing, the blade deformation is large, and repeated welding will lead to cracks on the blade surface, which is easy to cause accidents. The blade surface can be carburized, and the carburizing process is difficult. In actual carburizing, the position and thickness of carburized layer should be determined by the blade thickness, wear and carburizing process. Thermal spraying: ceramic or tungsten carbide or nickel base + tungsten carbide alloy is sprayed on the worn surface of the blade by plasma spraying or oxyacetylene flame.

减少叶轮磨损的方法还需要用户从防腐蚀做起，很多时候风机的腐蚀会加重风机的磨损现象，因此如何在使用中减少风机的腐蚀现象，也是用户使用风机的过程中需要研究的一个课题，保障风机的顺利谁用仅仅从这些方面来入手是远远不够的，我们都知道风机能不能保持较长的使用效果，和平时对风机的保养维护程度是分不开的，一个完善的保养方案是用户一定要具备的。

The method of reducing impeller wear also requires users to start with corrosion prevention. In many cases, the corrosion of fans will aggravate the wear of fans. Therefore, how to reduce the corrosion of fans in use is also a subject that users need to study in the process of using fans. It is far from enough to ensure the smooth use of fans. We all know that fans can not maintain a long use effect, The degree of fan maintenance in peacetime is inseparable. A perfect maintenance scheme is a must for users.

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