Why does the brass plate go black? Brass plate blackening solution

In our lifestyle, often see copper items like fifty copper coins and then on, after using for a protracted time, often encounter rusty black, green phenomenon. So why the brass plate is black, a way to pander to the black brass plate to revive it, because the saying goes: the correct medicine, the subsequent Small edition of Gem Copper with you to know the explanations for the black brass plate and therefore the solution.

A, brass plate black reasons

1, oxygen within the air and brass plate chemical process, will result in black brass plate, if you wish to stop the oxidation of the way is to isolate the air, the employment of chemical principle.

2, brass plate black because the surface generated a sort of rust, this rust is truly a sort of protection rust, relatively hard, generally during this case, it's recommended to not use physical methods, otherwise whether or not cleaned out, the merchandise are destroyed.

Brass plate

Two, brass plate black solution

1, transparent grease within the brass surface coating or paint can, this may make it generated on the surface of a layer of black surface film, at present, the black processing technique thanks to its high efficiency and oxide film layer has good corrosion resistance, the brass for oxidation, can use sand grinding light, can also be in an exceedingly reducing atmosphere like H2 and CO in an exceedingly certain temperature under its reduction also can, Or treated with water-soluble biodegradable cleaning agents and chromium-free cyanide-free oxidants.

2, for the protection of brass plate surface rust, should concentrate to worry, otherwise it'll only promote its corrosion, get the alternative effect. it's very normal to own verdigris over time. For copper rust will be wont to eat vinegar, vitriol and other strong acid immersion, immersion should be turned over at any time, observe, not overdo it, and so use water or cleaning agent, soft brush clean dry, cleaning is to scrub the residual cleaning agent, blow-dry is helpful to brass plate better anti-discoloration effect.

In order to avoid the brass plate blackened and therefore the use effect isn't greatly discounted, you would like to listen to some maintenance and maintenance methods at ordinary times, we buck copper production of brass plate specifications and models are complete, quality assurance, service assurance, welcome to consult.