The invention discloses a multi-cavity folding rib
pipe type temperature equalizing plate and a preparation method thereof.The temperature equalizing plate comprises a temperature equalizing
pipe body, a first sealing part is arranged at one end of the temperature equalizing
pipe body, a second sealing part is arranged at the other end of the temperature equalizing pipe body, the temperature equalizing pipe body comprises an upper pipe body and a lower pipe body, the upper pipe body and the lower pipe body are connected into a whole, and a folding rib is arranged in the middle of the upper pipe body; the folding ribs extend towards the two ends along the axis of the upper pipe body, and the bottoms of the folding ribs are fixedly connected with the inner side of the lower pipe body. The folding ribs are rolled on the upper surface of the uniform-temperature plate, the bottoms of the folding ribs are in contact connection with the inner side of the lower portion of the uniform-temperature plate, the supporting effect is achieved, the two opposite inner side walls of the folding ribs are tightly attached, and therefore the supporting strength is doubled, the overall installation strength and use strength of the uniform-temperature plate are greatly improved, and the service life of the uniform-temperature plate is prolonged. The width size of the vapor chamber can be expanded, the vapor chamber can be applied to a wider heat receiving source, the strength of the vapor chamber cannot be reduced due to size expansion, the overall strength is guaranteed, and the heat dissipation effect is also guaranteed.