The bibcock that bought half an year is less than appeared rust spot, how is this to return a responsibility?

 

In fact, bibcock rust in the final analysis is its surface plating is poor!

 

Above all, make clear why bibcock wants electroplating?

 

One is beautiful, electroplating will make the faucet appear bright texture;

 

The second is anti-corrosion, in order to make the bibcock base material is not water, air and other corrosion, and then affect the health of water quality.

 

The plating layer is usually three layers, which are semi-polished nickel, all-polished nickel and chromium plated on the fine copper body. The front layer is plated with copper to enhance the adhesion of electroplating, while the nickel layer (including semi-luminous nickel and all-luminous nickel) has the effect of corrosion resistance. The nickel itself is soft and dark, so a layer of chrome is plated on top of the nickel to harden the surface and improve the brightness.

 

On the market, some manufacturers advertise electroplating for five and seven layers, which sounds much better than three layers. Calm down and think carefully, when three layers can be done, why do five layers and seven layers? Does conscience manufacturer take much time and effort to cost money?

 

In fact, "five plating" includes plating copper cyanide, copper phosphate, copper sulfate and other three layers of copper, and then nickel plating, chromium plating. Copper sulfate plating can enhance the surface smoothness of the product.

 

That's weird. Why do you need three layers of copper when you already have a copper base?

 

Original, same copper material base material, material also is varied greatly. Many copper contains a lot of impurities, often polished out there will be a lot of potholes, it is not difficult to understand, why to plating five or more layers, do not fall into the number of layers of plating good quality.

 

Said electroplating had to raise acid salt fog test (focus on thick, acid, neutral is not the same oh), this is the detection of corrosion resistance of surface coating of hardware products, that is, reference GB/ T6641-2002 national standard requirements, product appearance grade to achieve 24 hours 9 level (the defect area is less than 0.1%). Small brand or copycat most of the less than, so bought less than half of the bibcock coating off or rust problems. There are also some enterprises in order to reflect the durability and competitive strength of the product, will be 24 hours 10 or 48 hours 9 to promote, this data is either measured by the enterprise's own laboratory, or buy money to find a third party to test, in short, the coating is good, when buying can be used as a basis for durability.

 

If you are used to shopping offline, you can also compare them by observing them.

 

The electroplating surface is smooth and smooth, like a mirror clear, close look, the eyebrows on the face, wrinkles and so on clearly visible.

 

No fog, no small pinhole, trachoma, spot stains and other defects, especially the junction details are very fine. Coating of this kind of faucet is thicker commonly, total thickness achieves 15 micron above.

 

On the contrary, the surface color of inferior electroplating is dark, and it can be muddied through from a distance. When you look carefully, you can see subtle matrix stripes and tiny traces left by polishing wheels, and even find more small pinholes, sub-spots, spots, fog and burrs. Generally this coating is relatively thin, the total thickness does not exceed 15 microns.