METHOD OF SECURING METALLIC BRANCH PIPES TO ENDS OF FIBER GLASS PIPE Russian patent published in 2005 - IPC

FIELD: mechanical engineering.

SUBSTANCE: method comprises winding prepreg on the mandrel and setting metallic branch pipes at the ends of the fiber glass pipe. The prepreg is wound on the mandrel at a temperature that provides the binder to be flexible. The end bosses are made on the fiber glass pipe by winding the same prepreg heated up to a temperature allowing the binder to be flexible and a diameter equal to the outer diameter of the section of metallic branch pipes to be wound. The mandrel with the prepreg is then cooled down to the ambient temperature. The outer surface of the end bosses is provided with ring grooves, and the glue is applied on the outer and inner surfaces of the sections of the metallic branch pipes to be wound. The metallic branch pipes are pressed on the end bosses.

EFFECT: enhanced reliability.

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