Continuous extrusion device for extruding copper alloy
An extrusion device and copper alloy technology, applied in the direction of metal extrusion dies, etc., can solve the problems of limited application, unqualified product quality, and unstable size of continuous extrusion products, so as to reduce extrusion deformation resistance and improve tensile strength strength and shortening of recrystallization time
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Embodiment 1
[0031] Such as figure 1 A continuous extrusion device for extruding copper alloy is shown. The rotating extrusion wheel 1 is installed on the main shaft 2. The main shaft 2 drives the extrusion wheel 1 to rotate. The blank is fed into the extrusion wheel groove 3 and passes through the compaction wheel. 4 Press the blank into the extrusion wheel groove 3. Driven by the friction between the blank and the side wall of the extrusion wheel groove 3, the blank moves forward through the feed guide plate 5 to the stopper 10, which is blocked by the stopper 10 Next, the blank enters the cavity 7 through the cavity inlet 14 and extrudes the product through the sizing belt 19 of the mold 9 through the flow promoting angle 11.
[0032] The feed guide plate 5 is installed between the cavity 7 and the shoe seat 6 and fixed with a pressure plate. There is a gap of 0.3mm to 0.8mm between the cylindrical surface 16 of the extrusion wheel and the sealing surface of the cavity base to ensure t...
Embodiment 2
[0038] Such as Figure 5 The basic structure of a continuous extrusion device for extruding copper alloy is the same as that of Embodiment 1, but the difference is to make the supporting parts universal. The supporting parts adopt the combined structure of the cavity cover and the supporting pad, and the cavity cover 8 A support pad 20 is added between it and the mold 9, and the groove of the nozzle 12 originally on the cavity cover is made on the support pad.
[0039] Using the copper alloy continuous extrusion device of the above embodiments 1 and 2, on the 250 type continuous extruder, H62 and H65 brass rods with a diameter of 8mm are used, the cavity 7 is made of GH4169 nickel-based high temperature alloy, and the stopper 10 is used Hot work die steel, the core 17 is made of cobalt-based alloy, the die jacket 18 is made of H13 hot work die rigid, the flow promoting angle β is 30°, the length of the die sizing belt is 2mm, and the brass flat wire 1.45mm×6.4mm is realized The ...
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Abstract
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