高压釜内壁覆盖的十八烷基胺对成膜试验的影响

纯铁经过十八烷基胺处理后其耐蚀性随十八烷基胺浓度的增加而增大，但达到一定浓度之后，再增加十八烷基胺的浓度，其耐蚀性反而会有所下降．高压釜内壁覆盖的十八烷基胺不易擦去，这会影响实验结果，可采用多次放空的办法来消除对试验的影响．

Influence of Octadecylamine on Autodave Inner Wall upon Filming Tests

With increasing concentration of octadecylamine, the corrosion resistance of pure iron initially increases and then decreases. The experiments at our laboratory show the optimum concentration of octadecylamine is around 25 mg/L. A considerable amount of octadecylamine remained on the autoclave wall and made an import on the results, which must be eleminated by means of multi - releasing.