Method for surface treatment of matte tin-plated product

A method for surface treatment of a matte tin-plated product, which is configured for heating a matte tin electroplated on a surface of the matte tin-plated product into a bright tin, the method for surface treatment comprises heating the surface of the matte tin-plated product with infrared rays,

• wherein the infrared rays are emitted by an infrared radiator and the infrared radiator comprises a plurality of heating zones arranged at intervals, and the method for surface treatment comprises:
• Step S1:
• setting a movement path of the matte tin-plated product according to a position of the infrared radiator, the movement path comprising a waiting position and a heating position;
• Step S2:
• placing the matte tin-plated product at the waiting position, and allowing a side of the matte tin-plated product to be heated to face the infrared radiator;
• and
• Step S3:
• turning on the infrared radiator for preheating, and controlling the matte tin-plated product to sequentially pass through the plurality of heating zones along the movement path to undergo partial heating and then be transported out.