Drawing die for efficient heat dissipation copper tube

Abstract

The invention discloses a drawing die for an efficient heat dissipation copper tube. The drawing die comprises a clamping disc and a core rod placed in a center hole of the clamping disc. Multiple clamping claws are connected to the front face of the clamping disc and can advance and retreat toward the center of the clamping disc at the same time. The heads of the clamping claws are respectively provided with a pressing die, and the ends of the pressing dies are die heads. By the adoption of the drawing die for the efficient heat dissipation copper tube, while passing through the center of the clamping disc at constant speed, a copper tube blank pushes toward the center of the clamping disc through the clamping claws at the same time, a copper tube blank body is extruded by the die heads and concaved inwards, so that the tube body is provided with multiple spiral grooves, compared with a common heat dissipation copper tube, the heat dissipation copper tube of which the tube body is provided with the spiral grooves has inside and outside surface areas multiplied, so that the heat dissipation capacity is improved substantially.

Description

technical field [0001] The invention relates to a copper pipe drawing die, in particular to a drawing die for a high-efficiency heat dissipation copper pipe with larger and deeper spiral heat dissipation grooves. Background technique [0002] Existing internally threaded heat dissipation copper pipes usually press one or more internal threads on the inner surface of ordinary heat dissipation copper pipes to increase the area of ​​the inner surface, but the depth of the internal threads is relatively shallow and usually does not exceed the wall thickness of the copper pipe Although it can improve the heat dissipation performance of the heat pipe, the increase of its heat exchange area is still extremely limited, and its outer surface is still smooth, which also affects the heat dissipation performance. There is an urgent need for a high-efficiency heat-dissipating copper pipe that can increase the internal and external areas several times at the same time, but the existing va...

AI Technical Summary

Problems solved by technology

[0002] Existing internally threaded heat dissipation copper pipes usually press one or more internal threads on the inner surface of ordinary heat dissipation copper pipes to increase the area of ​​the inner surface, but the depth of the internal threads is relatively shallow, usually not exceeding the wall thickness of the copper pipe Although it can improve the heat dissipation performance of the heat pipe, the increase in the heat exchange area is still extremely limited, and its outer surface is still smooth, which also affects the heat dissipation performance.

There is an urgent need for a high-efficiency heat-dissipating copper tube that can increase the internal and external areas several times at the same time, but the existing various copper tube drawing dies cannot produce such a high-efficiency heat-dissipating copper tube

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