镀锡板ATC值与合金层之间的关系

Relationship Between Tinplate ATC Value and Sn Fe Alloy Layer

比较了６种国内外食品罐用镀锡板的锡－铁合金层厚度和合金－锡电偶值（ＡＴＣ值）。指出ＡＴＣ值不仅与合金层厚度相关，更重要的是与合金层的连续性和致密性有关。

The relationship between Sn Fe alloy layer’s thickness and alloy tin couple value of six kinds of food can tinplates is studied.It is suggested that the ATC value directly relates to the thickness of Sn Fe alloy layer,and,what’s more,it has a bearing on the continuity and tightness of the same.