Method for judging corrosion resistance of tin plate based on tin content

The invention particularly relates to a rapid judgment method for corrosion resistance of a low-tin-content tin plate, and belongs to the technical field of quality detection.The method comprises the steps that pretreatment of degreasing and surface impurity removal is conducted on the tin plate, and a sample with a certain area is obtained; performing an electrochemical test on the sample to obtain a time-voltage curve; and according to the voltage change condition of the time-voltage curve, a time-voltage differential curve is drawn, and the corrosion resistance of the tin plate is judged according to the numerical value of voltage differential. Through a voltage differential test, the test method capable of evaluating the corrosion resistance of the plating layer of the low-tin-content tin plate is established, and the problem of the blank of the current tin plate corrosion resistance evaluation technology is solved. 本发明特别涉及一种低锡量镀锡板耐蚀性的快速判断方法，属于质量检测技术领域，方法包括：对镀锡板进行脱脂、去除表面杂质的预处理，得到一定面积的样品；把所述样品进行电化学测试，得到时间-