With pressure seal glue plugging method for
Time：2013/08/30 15:36:54 Hits：1137
Pressure Seal sealing glue is the core technology is the key to success with a pressure sealing ring. Therefore, persons engaged in this work, various adhesives must have a more comprehensive understanding. In the design of the sealing glue recipe, you can refer to the commonly used adhesive formulations about the content, but to increase the amount of filler and the appropriate amount of curing agent of change, and more generally use reactive adhesives, shall have non-volatile, gap filling, good viscosity thick performance in the medium temperature, curing time shall not be less than 10min, in order to have sufficient operating time.
With no conditions for self-sealing glue units, the choice of commodity adhesives, such as epoxy adhesives, phenolic resin adhesives, phenolic nitrile rubber adhesives. For temperatures above 400. C media should be used in inorganic adhesive. The various types of adhesives, in use, in addition to manual preparation, but also a certain amount of fillers such as graphite, talc, silica three boron powder, mica, etc., so that the formation of pasty, easy to put plastic and injection; another medium temperature control should be based on the amount of curing agent to adjust the curing time.
