Extruding device and method for double-mouth and thick-wall pipe blank extrusion manufacturing
A technology of extrusion device and nozzle, which is applied in the field of extrusion device for double-nozzle thick-wall pipe extrusion billet, can solve the problems of not manufacturing multi-nozzle thick-wall pipe, welding structure sensitization, unstable performance, etc. , to achieve the effect of wide size coverage, fine grain and good surface quality
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[0036] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.
[0037] The invention provides an extrusion device and method for extruding a double-nozzle thick-walled pipe blank.
[0038] Such as figure 1 As shown, the device includes an upper ejector pin 1, a lower ejector pin 8, an extrusion cylinder 7 and a floating extrusion cylinder jacket 4. The extrusion device is installed on the extruder, and the upper end of the upper ejector pin 1 is fixed to the extrusion through a fixed plate. On the extrusion shaft of the machine, the lower end of the lower mandrel 8 is fixed on the lower platform of the extruder through a fixed plate. The outside of the extrusion cylinder 7 is tightly fixed by the floating extrusion cylinder jacket 4, the floating extrusion barrel jacket 4 and the extrusion cylinder cyli...
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