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介绍了一种激光淬火前工件磷化液的新配方。该磷化液使用温度为5～40℃，磷化时间为5～15min，形成的磷化膜结晶均匀，致密，不反光，呈黑灰色。
A new formula of laser phosphating solution before laser quenching is introduced. The phosphating solution has a temperature of 5 to 40 DEG C and a phosphating time of 5 to 15 minutes. The formed phosphating film is uniform, dense and non-reflective with a dark gray color.