Method for preventing stretch deformation and pollution during winding forming of rubber tape

Abstract

The invention relates to a method for preventing stretch deformation and pollution during winding forming of rubber tape, and belongs to the technical field of rubber winding forming. Double-backing rubber tape composed of rubber tape, a release film and a protective film is adopted. The double-backing tape composed of the rubber tape, the protective film and the release film is wound into a discbefore winding. In the winding process, firstly, an ultrasonic cutting technology is adopted to cut off the polluted edge of the wound tape, and the tape reaches the winding width; secondly, the protective film on the upper layer is stripped before the tape is heated, and the upper surface of the tape does not make contact with other components any more in the heating and winding processes; and finally, after the tape is wound around a core mold, the release film is stripped from the rubber tape and recovered. According to the method for preventing stretch deformation and pollution during winding forming of the rubber tape, the rubber tape can be prevented from being deformed and even fractured under stress, the winding quality of a rubber heat-insulation layer is ensured, the automatic winding requirement of the rubber heat-insulation layer is met, and the wound tape can be prevented being polluted in the processes of belt forming, transportation, storage and winding forming.

Description

technical field [0001] The invention belongs to rubber winding forming technology, and relates to a method for preventing stretching deformation and pollution of a winding and forming rubber tape. Background technique [0002] At present, solid rocket motor shells are generally manufactured by the method of EPDM rubber insulation inner layer and composite material winding shell. The molding methods of EPDM rubber insulation layer mainly include patch method and winding molding method. In the automatic winding forming process of the rubber thermal insulation layer of solid rocket motor, not only the winding pressure required by the winding process, but also the winding tension required by the automatic winding process must be satisfied. Due to the poor tensile capacity of the EPDM tape, deformation or even breakage occurs under force, which directly affects the winding quality of the insulation layer and the automatic winding process. Therefore, it is necessary to avoid the ...

AI Technical Summary

Problems solved by technology

[0004] Existing technologies and methods cannot meet the requirements of the automatic winding process for the thermal insulation layer of solid rocket motors for rubber winding tapes

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