As we all know, copper bar is a kind of high current conductive product, which is widely used in metal smelting, electrochemical electroplating, chemical caustic soda and other super current electrolytic smelting projects. It has high conductivity and good conductivity. Generally, there are many copper buses used as distribution cabinets.

Red copper busbar, also known as copper busbar, copper busbar or copper busbar, grounding copper busbar, is a long conductor made of copper with a rectangular or chamfered (rounded) rectangular section. It is called aluminum busbar made of aluminum material. It plays the role of transmitting current and connecting electrical equipment in the circuit. It is suitable for high and low voltage electrical appliances, switch contacts, distribution equipment, bus duct and other electrical engineering. Copper busbar has the advantages of low resistivity, large bending and bending.

In use, copper bars are generally marked with phase color letters or painted with phase color paint, U-phase copper bars are painted with "yellow" color, red copper bars, V-phase copper bars are painted with "green" color, w-phase copper bars are painted with "red" color, and PE bus bars are painted with "yellow and green" double colors. Red copper has very good exquisite welding ability, and it is also relatively easy to shape. The carrying capacity of red copper row can make red copper tubes play a great role in industrial production.

The copper content of T2 copper bar is higher than 99.90%. When users have high requirements for conductivity of materials, T2 copper pipe will be the first choice. TU1 oxygen free copper, copper content 99.97%, oxygen and impurities content is very low, high purity, conductive Excellent thermal conductivity, good ductility, processability and welding Corrosion resistance Good cold resistance. Because of its high production requirements and high cost, its product price is much higher than that of other types of copper tubes.

Red copper bar is a kind of high current conductive product, which is suitable for high and low voltage electrical appliances, switch contacts, power distribution equipment, bus duct and other electrical engineering. Electric red copper bar has the advantages of low resistivity and large bending. It has the good characteristics of copper metal, a high-quality basic metal, and is widely used in various fields of industry and civil use, playing an important role.

But careful people will find that some copper bars are also different. There seems to be a layer of film on them. In fact, this is the copper bar after tinning. There are also many advantages of tinning copper bars:

1. The key to tin plating of red copper row is tin. Let's first talk about the element tin, which is very stable in the atmosphere. From this point, we can effectively prevent the red copper row from being affected by moisture, producing copper green, oxidation, blackening and so on. So many copper bars are usually plated with a very thin layer of metal tin.

2. After a layer of metallic tin is plated on the red copper bar, a protective film can be formed effectively and evenly. The red copper bar is enough to resist the corrosion of atmosphere and fresh water. It has a great effect on oxidation resistance and corrosion-resistant acid-base. It can prolong the service life of the red copper bar by several times or even dozens of times, and the service life is greatly improved.

3. The surface color of the red copper bar will become dim or even black after long use, and this problem will be solved to a large extent after a layer of tin is plated, so the color will be more durable and bright in appearance.

At the same time, what are the standards of red copper tin plating?

1. First of all, we need to prepare the bath opening agent. Its ingredient standard requires pure water, pure sulfuric acid, pure stannous sulfate to be added in a certain proportion, as well as brighteners, additives and JH stabilizers. Then configure it as a plating solution.

2. Put the prepared solution into the tin plating bath. At this time, it needs to be annealed and then cleaned. During cleaning, acidic cleaning solution needs to be set in the cleaning bath. The standard is pH refers to 0.5-1.

3. After cleaning, when putting the red copper into the tin plating bath, the tin block needs to be connected with the DC power supply. The copper wire is connected to the negative end of the power supply through the cathode, and the DC current is generally 0.5-2a/dm2.

4. After that, the tinned copper needs to be neutralized in an alkaline solution, and then the pH value standard is 6, and then the neutralized tinned copper can be dried.

Source: Network