FIELD: process engineering.
SUBSTANCE: invention relates to production of branch pipes from rubber cord to be operated at pressure in oil-and-gasoline resistant fluids at increased working temperature of 150°C. In compliance with this method, rubber cord blank plies are made and cut out, grouped and cured. Simultaneously, groove is made in heat-and-oil resistant rubber ply over the entire length of the drum to fit a cord thread in said groove at a proper tension with the help of appropriate brake. Said cord thread is embedded in said heat-and-oil resistant rubber ply by more than half the cord thread thickness. Plies of temporary polyethylene film ply is applied thereon and glued thereto and removed after gluing rubberised cord fabric to said rubber cord branch pipe.
EFFECT: higher strength of bond between cord thread and sealing and cover plies of said heat-and-oil resistant rubber ply.
4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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