Method for making bent-tube and its special equipment
A production method and technology of special equipment, which are applied to the production of elbows and the field of special equipment, can solve the problems such as the inability to take out the inner core of the elbows, and achieve the effects of low power, low energy consumption, and guaranteeing the quality of the elbows.
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[0023] As shown in the drawings, the special equipment for bending pipes involved in the present invention includes a mold wheel 2 with a circular groove set on the frame through a rotating shaft 1, and a mold wheel 2 with a circular groove that can be clamped to a steel pipe corresponding to the position of the mold wheel 2. The template 4 of the groove, the jacket 8 that can fix the steel pipe 3 on the mold wheel 2 and the hydraulic pushing device 9 that are arranged on the frame. Template 4 of the present invention can adopt the mold wheel that has circular groove.
[0024] Taking the bent Φ219*35 high-pressure seamless steel pipe 3 for fertilizer production as an example, one end of the bent part of the steel pipe 3 is clamped on the mold wheel 2, and the exposed part of the steel pipe 3 is held tightly by the template 4 and jacketed on the exposed part of the mold wheel 2. 8. Fix firmly, and the steel pipe 3 is ready to be bent.
[0025] The other end of the bent steel p...
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