The single layer and multi-layer network cores which are close to the pipe wall should be as close as possible between the layers of such multi-layer network, and between the network and the pipe wall should be well fitted. The number of layers of network is 1 to 4 or more, and the number of meshes of each layer can be the same or different. The core has a higher capillary suction force, and greatly improves the radial thermal resistance, which overcomes the shortcomings of poor repeatability of the core technology.

Wire mesh heat pipe products are suitable for heat dissipation products of high power devices over 8MM diameter.