Brazing steel cooling system and cooling method thereof

Abstract

The invention discloses a drill steel cooling system which comprises a base, a worktable, an air cooling device, a propelling device, a positioning device, a temperature measuring device, a cooling device and a feedback device, wherein the temperatures of four joints A1, A2, A3 and A4 are regulated and controlled by the feedback device; three feedback devices are arranged in the axial direction toensure that the actual cooling temperature of the shaft is controllable. Temperatures at pints of corner angles are controlled precisely by means of a feedback system, so that the problem that the corner angles of the polygonal drill steel are not cooled uniformly is solved. The invention further discloses a cooling method of the drill steel. The feedback system of the method acts to the four joints A1, A2, A3 and A4 separately to control the size of a water flow precisely, so that the water is controlled precisely and the water consumption is reduced. In order to prevent a condition that theactual cooling temperature of the drill steel cannot reach the control temperature as the temperature of the surface of the drill steel raises again due to self-tempering of the drill steel, three feedback systems are uniformly distributed along the axial direction o the drill steel, so that the actual cooling temperature of the steel drill is controllable.

Description

technical field [0001] The invention relates to the field of brazing steel cooling, in particular to a polygonal brazing steel cooling system and a cooling method thereof. Background technique [0002] The full name of brazing steel is hollow steel for brazing rods. It has two main cross-sections, polygonal and circular. After research, it is found that the polygonal hollow brazing steel has stronger fracture resistance and bending resistance, and has a longer life, so it has broad development prospects. [0003] However, some problems occurred during the cooling of the polygonal brazing steel. Taking the heptagonal brazing steel as an example, the cooling water is evenly sprayed on the brazing steel during the cooling process. Because the cooling water flows from top to bottom, the water that has cooled the upper corners will continue to cool the lower corners. It will lead to uneven cooling of the seven corners of the brazing steel, which will cause the internal stress o...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies of the prior art above, the present invention provides a brazing steel cooling system, by arranging multiple cooling tube groups on the outer periphery of the brazing steel, and adjusting the water outlet speed of the cooling tubes in real time, so that the brazing steel passes through multiple cooling tubes After assembly, the brazing steel can be continuously adjusted from the high temperature after processing to the controlled temperature, so as to overcome the problems of uneven cooling at the corners and self-tempering that cause the performance of the brazing steel to decrease.

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