One-time forming production method of soldering tin plate with forming holes

A one-time forming production method of a tin soldering plate with forming holes comprises the steps that a top column (3) with the bottom end making contact with the bottom of a casting groove is arranged at the bottom of a cover plate (2) of the casting groove (1), the top column is located at the position of the forming hole of the tin soldering plate with the forming hole, and the diameter of the top column is equal to the aperture of the forming hole of the tin soldering plate with the forming hole; the casting groove is covered with the cover plate, molten metal for manufacturing the soldering tin plate is injected into the casting groove from the casting opening in the cover plate, after the molten metal is cooled and solidified, the cover plate is upwards and horizontally taken away, the solidified and formed metal plate is demoulded, and the soldering tin plate with the forming hole is obtained. One-time forming of the soldering tin plate with the forming holes is achieved, the secondary machining pr