Thermal treatment method for mechanically sealing corrugated-sheet materials of corrugated pipe
A heat treatment method and mechanical sealing technology, which are applied in heat treatment furnaces, heat treatment equipment, furnaces, etc., can solve the problems of difficulty in ensuring low loss of elasticity, much decrease in strength, high temperature pump failure, etc., and achieve a simple and easy-to-operate treatment method and stable chemical performance. , the effect of high tensile strength
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[0018] A heat treatment method for bellows mechanical seal wave plate material, the heat treatment steps are as follows: put the newly made bellows in a heat treatment furnace, then evacuate the heat treatment furnace into a vacuum; then heat the heat treatment furnace to 200 ° C, the heating time for 25 minutes, heat preservation treatment for 30 minutes; then heat the heat treatment furnace to 350 ° C, the heating time is 35 minutes, and heat preservation treatment for 30 minutes; Raise the temperature to 650°C for 3 hours and hold for 2 hours; then cool the heat treatment furnace to 550°C for 1 hour and hold for 1 hour; then heat the heat treatment furnace to 750°C for 2 hours and hold for 1 hour; then Cool the heat treatment furnace to 600°C for 1 hour, keep it warm for 10 hours, and finally cool to room temperature.
[0019] In some embodiments, the heat treatment furnace is of the VDFC type.
[0020] The bellows of the present invention is a precipitation-hardening nick...
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