The basic method of selecting adhesive in metal hose joints: (1) Temperature resistance. Refers to the temperature range that the fully cured adhesive layer can withstand, such as a certain temperature resistance of -60ºC-120ºC, that is, the adhesiveness can be applied in the range of -60ºC to 120ºC, beyond this limit, the adhesive force will be significantly reduced. (2) Curing time. The curing time refers to the time required for the adhesive to transform into a solid glue at room temperature at room temperature. Initial solidification refers to the time required for the adhesive layer to bear the adhesive components without falling off due to its own weight; full solidification refers to the time required for the adhesive layer to fully solidify and achieve higher adhesive strength and better media resistance. If you need to shorten the curing time of slow-drying adhesive with nylon cable ties, you can use heat blowing, oven baking and other measures to heat, but the heating temperature and time should be determined by different types of glue. There are two main types of hose joints. One is our common threading hose connector, and the other is also a very common metal bellows connector. Standard hose connector size
In order to improve the utilization rate of metal materials, save raw materials and improve production efficiency, the amount of metal cutting should be minimized in the processing of metal hose joints. Under permitted conditions, the grooves outside the tube core can be formed by rolling, the external thread can be rolled out by a rolling machine, and the internal thread can be tapped and formed by a tapping machine. For air conditioning hoses or some middle and low pressure oil pipes, metal pipes should be used as much as possible, and the sealed end of the pipe core should be formed by an end forming machine or die. The outer sleeve should be made of a thin steel plate with low carbon content to make a stamping outer sleeve. . For some joint types of tube cores, such as the radial size gap (such as flange type pipe joints), the tube core is too long or needs to be bent at an angle at one end of the tube core, you can use the processing method of segmented welding. Electric welding, sub-arc welding, fusion welding, etc.