对焊条药皮含水量的测定具有较大技术价值。试验证明,焊条药皮的含水量与熔敷金属中的扩散氢含量有一定的对应关系。如果控制了药皮的含水量,也就直接地控制了扩散氢含量。再者,通过对药皮含水量的测定,还可对确定焊条的烘干条件、存放时的温度、湿度要求提出合理的依据。在制定焊条国标过程中,为确定焙烧-吸 Determination of electrode coating water content has great technical value. Experiments show that the water content of electrode coating and deposited metal diffusion hydrogen content has a certain correspondence. If you control the skin water content, it directly controls the diffusion of hydrogen content. Furthermore, through the determination of the skin moisture content, but also to determine the electrode drying conditions, storage temperature and humidity requirements put forward a reasonable basis. In the development of the national standard electrode, in order to determine the roasting - suction