Locking rigid-plastic compound bulging forming apparatus for hydraulic controlled type three-way pipes
A bulging and rigid technology, which is applied in the field of hydraulically controlled three-way pipe locking type rigid-plastic composite bulging forming equipment, can solve the problems of low service life of punches, complex mold structure, and too small size of tube blanks that cannot be used. , to achieve the effect of preventing the increase of the molding cavity space and the increase of the bulging deformation of the tube blank
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[0031] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.
[0032] Such as Figure 4 As shown, it is a schematic structural diagram of an embodiment of the liquid-controlled three-way pipe lock-type rigid-plastic composite bulging molding equipment embodiment of the present invention. The liquid-controlled three-way pipe lock-type rigid plastic composite bulging molding equipment in this embodiment includes an upper half-mold 1 and a lower half-mold 2, and a circular tube-shaped molding is arranged between the upper half-mold 1 and the lower half-mold 2 Cavity 3, the two ends of the forming cavity 3 are respectively equipped with bulging extrusion punches 4 that slide and fit with it, and the lower half mold 1 is provided with a branch for...
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