Ultrasonic surface roughening micro groove group extrusion molding device

Abstract

The invention discloses an ultrasonic surface roughening micro groove group extrusion molding device. The extrusion molding device comprises a machine head body, a cone, a shunting body bracket, a core die internally provided with a runner, and an outer edge die, wherein the machine head body is connected with the cone through a bolt; the shunting body bracket is fixed between joints of the machine head body and the cone; a filter screen is arranged at the left end of the machine head body; an ultrasonic transducer which can be used for generating ultrasonic waves for driving the core die to vibrate is arranged in the center of the core die; the outer edge die for defining the cross sections of finished products is fixedly arranged at the right end of the cone through a gland. The extrusion molding device is simple in structure, is convenient to implement, can be used for performing extrusion molding on aluminum materials, is high in production efficiency, and is low in cost. An ultrasonic surface roughening method is adopted in the production process, and grooves in the inner walls of aluminum sections have rough surfaces, so that application occasions are expanded.

Description

technical field [0001] The invention relates to the field of heat exchange material molding, in particular to an extrusion molding device for micro-groove groups with ultrasonic rough surfaces. Background technique [0002] At present, the methods of enhancing heat transfer mainly include increasing the heat transfer coefficient, enlarging the heat transfer area and increasing the heat transfer temperature difference. Increasing the number of heat transfer tubes in a certain heat exchanger space can effectively increase the heat transfer area. In addition, surface roughening can effectively improve the convective heat transfer coefficient of the material surface, thereby improving the heat dissipation or heat absorption capacity of the surface and strengthening the heat transfer process. [0003] The micro-groove group aluminum profile is composed of several micro-groove tubes juxtaposed, with a large number of capillary micro-grooves, which are applied to new heat pipes, an...

AI Technical Summary

Problems solved by technology

However, the micro-groove tube array obtained by extrusion molding has relatively smooth groove surface, no rough surface structure, and small capillary suction, so the working medium can only rely on gravity to reflow, which limits the extruded aluminum profile of the micro-groove group. Application on heat pipe

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