High-pressure gas bulging thermoforming die of boron steel pipe
A high-pressure gas and thermoforming technology, which is applied in the direction of forming tools, manufacturing tools, heat treatment equipment, etc., can solve the problems of limited strength of pipe fittings, limited product shape, tensile strength difficult to exceed 1000MPa, etc., and achieve the reduction of the forming force of the press , The effect of improving the elongation rate
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[0033] Embodiment 1: The inflation thermoforming process of the boron steel pipe, the material of the boron steel pipe is boron steel 22MnB5, the material thickness is 2.6mm, the outer diameter of the constant section is 100mm, and the length is 850mm;
[0034] The above-mentioned workpieces are specifically processed through the following steps:
[0035] 1. Boron steel straight pipe preparation, material thickness 2.6mm, outer diameter 100mm, length 1000mm;
[0036] 2. Heating to 900°C in the heating device to completely austenitize the boron steel pipe;
[0037] 3. Place the boron steel pipe material in the mold within 6 seconds. The initial opening height of the press is 800mm, and it is closed and formed at a speed of 300mm / s;
[0038] 4. The axial cylinders on both sides of the mold push the front end head to seal the pipe fittings to form a closed cavity;
[0039] 5. Through the gas channel at the front end of the mold head, fill the closed cavity of the pipe with high...
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