supply aluminum alloy high temperature blackening agent

introduction:412 aluminum high temperature blackening agent is a kind of aluminum high temperature alkaline blackening liquid is specially designed for the blackening of aluminum and aluminum alloys. it is suitable for aluminum extrusions, stampings, die-cast aluminum, cast aluminum, and various optical instruments and various accessories. it is not suitable for spray paint sealing. use of artifacts.

blackening process:aluminum alloy workpiece→degreasing and alkali corrosion (soaking time 3-5minutes)→washing with water→activation or 6061activation (soaking time 3-5minutes)→washing→413soaking at room temperature and blackening (just see the workpiece is dark enough for time30 the second is up to1about 1 minute, don’t blacken for too long, otherwise the blackening layer will fall off)→after the blackening is complete take it out and wash it immediately →412the high temperature turns black (the original liquid is heated to 85-95 degrees celsius, put the workpiece in for soaking time 2-3minutes)→wash in water→wash in hot water→dry→close. (any kind of darkening process yaowhen the water is not enough to soak, you can use the method of continuous pouring to darken, allyaowater should be filled with plastic basins )