Preparation method of anti-corrosion liquid-cooled heat dissipation cold plate

Abstract

The invention discloses a preparing method for a corrosion-resistant liquid cooling heat dissipation cold plate and aims at providing a cold plate preparing method which is free of tedious treatment before welding and has prominent corrosion-resistant capability and long-term work reliability. According to the technical scheme, the two sides of a bottom transverse pipe commonly communicated serve as the starting points respectively, two sets of parallel pipes are longitudinally arranged continuously in a bent manner, and the bending radius of bent circular arc rings on the two longitudinal sides is larger than the distance between every two parallel pipelines; the free ends of each set of parallel pipes are fixedly connected through respective connector flanges; and the two sets of parallel pipes are fixed, clamped and positioned through pipeline clamping tools which are longitudinally arranged at intervals, die positioning plates with screw holes are adopted, wax patterns wrapping runner titanium pipes and connector flange assemblies are clamped between the two die positioning plates, and the runner titanium pipes and the connector flange assemblies are put into a smelting furnace, and a rectangular flat plate is formed through lost foam casting. The preparing method solves the problem that during traditional cold plate welding, a welding seam is prone to cracking, and consequently a cooling agent leaks.

Description

technical field [0001] The invention relates to a heat transfer structural member, and relates to a method for casting and processing a buried pipe type dissimilar material of a heat dissipation cold plate which takes away heat through a cooling liquid. Background technique [0002] In recent years, with the improvement of design requirements for miniaturization, modularization and high integration of electronic equipment, the heat flux density often reaches 7 to 10 times that of traditional air-cooled equipment. module, so the heat dissipation problem is very prominent. At present, most electronic devices at home and abroad use cold plate liquid indirect cooling technology with high cooling efficiency to solve the problem of heat dissipation. The notable features of common liquid-cooled cold plates are that the flow channel is integrated with the metal matrix, and the coolant runs in the flow channel to take away heat. Aluminum alloy materials are generally used, and the l...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the increasingly prominent problem of corrosion blockage in the internal flow channel of the cold plate in the prior art and reduce the leakage risk of the traditional welded cold plate, the present invention provides a method that is simple, low in mass production cost, and does not require cumbersome pre-welding treatment, welded parts Assembling, pre-processing and post-processing, liquid-cooled heat-dissipating cold plate flow channel has outstanding anti-corrosion ability and long-term working reliability and preparation method of corrosion-resistant liquid-cooled heat-dissipating cold plate

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