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  • Maintenance and control of PCB tin -plated slot medicinal solution

      

      Analysis of tin and sulfuric acid before work. Each 100m2 plate is required to add 11L sulfuric acid, 600 g Tin Salt 235, 600 mlsulfotech part A, 800 ml Sulfotech Part B, 750ml STH Additive Sulfolyt. Automatically add 56ml Sulfotech Part A at 200AH.

      The solution must be conducted every week to observe and adjust the Sulfotech Part A, Sulfotech Part B.

      The best value of the project

      SN2+ 20-30 ml/L 24ml/L

      W (H2SO4) is 98% 160-185ml/L 175ml/L/L

      Sulfotech Part A) 30-60ml/L 40ml/L)

      STH (STH Additive Sulfolyt) 30-80ml/L 40ml/L

      Sulfotech Part B) 15-25ml/L 20ml/L

      Operating temperature 18-25 ° C 22 ° C

      Cathode current density 1.3-2.asd 1.7asd [2]

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