A foamed liquid coating apparatus prevents curling or warping of a sheet caused by coating irregularities when coated with a preprocessing solution using a coating roller or a liquid discharge head.
The foamed liquid is further supplied from the first coating roller to a second coating roller that coats a sheet with the foamed liquid.
泡沫液体从第一涂布辊被进一步供应到使用泡沫液体涂布纸张的第二涂布 辊。
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Effect of sulfur content in nickel coating on foamed nickel performances and effect of electroplating parameters on sulfur content in the nickel coating in foamed nickel production were studied.