Heat setting method

Abstract

The invention discloses a heat setting method. The method comprises the following steps that a, a workpiece penetrates through a through hole of a main body, and the workpiece is clamped at two ends of a bracket; b, a heating assembly is turned on, heat enters an inner cavity of the main body through a plurality of heat conduction openings of the main body, and then the heat is emitted to the surface of the workpiece through an air outlet communicated with the inner cavity; c, the main body moves in the axial direction of the workpiece, and other positions of the workpiece erected on the bracket are heated and shaped. Through the arrangement, heat is conducted into the inner cavity of the main body through the heat conduction openings of the main body by the heating assembly, finally the heat is conducted to the surface of the workpiece through the air outlet in the main body, so that the heating and shaping process is completed, meanwhile, the main body can move in the axial direction of the workpiece, and the main body can heat and shape the other positions of the workpiece erected on the bracket together so that not only can quick heat shaping be completed, but also the problem that the size of the heat-shaped workpiece is limited by the size of a resistance furnace can be solved.

Description

technical field [0001] The invention relates to the technical field of processing equipment, in particular to a heat setting method. Background technique [0002] Nickel-titanium alloy is a kind of memory metal. When a certain shape of nickel-titanium alloy is cooled from the first temperature (commonly known as Af temperature in the industry) to below the second temperature (commonly known as Mf temperature in the industry), martensite is formed; martensite at a temperature below Mf After being heated to the first temperature (commonly known as the Af temperature in the industry), the material will automatically restore its shape in the parent phase with the reverse phase transition. [0003] At present, most nickel-titanium alloy heat setting devices use resistance furnaces to shape nickel-titanium alloys through resistance furnace insulation, but this method requires a long preheating time to ensure the uniformity and constancy of the furnace temperature. A longer prehea...

AI Technical Summary

Problems solved by technology

[0003]At present, most of the Ni-Ti alloy heat-setting devices use resistance furnaces to shape the Ni-Ti alloys through resistance furnace heat preservation, but this method takes a long time. Longer preheating time to ensure the uniformity and stability of the furnace temperature, longer preheating time will lead to more power consumption, low power utilization rate, and for heat-setting long-striped tubular products, a larger furnace body is required , more energy-intensive

Images