Quick low-temperature sedimentation method for inner surface of spinneret pipe

The invention discloses a quick low-temperature sedimentation method for the inner surface of a spinneret pipe. The method comprises the following steps that 1, a concave side to be bent of the spinneret pipe which is not bent is punched; 2, the spinneret pipe which is not bent is subjected to oil washing; 3, the spinneret pipe which is not bent is subjected to acid cleaning and activated; 4, an inner cavity of the spinneret pipe which is not bent, a circulation water pump and a high-purity iron-group-element self-soluble alloy cluster compound aqueous solution form loop circulation; 5, the spinneret pipe which is not bent is electrolyzed, and the circulation water pump is started. According to the method, the outer surface of the spinneret pipe is laid to the inner surface of the spinneret pipe, so that the low-temperature iron-group self-soluble alloy cluster compound is hydrogenated and quickly deposited; by adopting an iron-group-element self-soluble alloy coating layer, high-temperature strengthening and