fullwaytech-blog

[fullwaytech-blog]

The application and cleaning precautions of the copper plate H62 the temperature field of the copper plate is very uneven in the width direction, and the temperature is wavy distribution. The temperature of the reinforcement between the adjacent two groups of water joints is higher than that in the water joint area.  As for the temperature field of copper plate in the mold, the temperature gradually increases from the top of the mold to the meniscus, and the temperature of the hot surface of about 60mm under the meniscus is high, up to 261 ℃, which is the part of the poor working conditions of the copper plate according to fullwaytech.com .

With the continuous increase of the distance in the direction of drawing billet, the temperature of copper plate generally shows a downward trend, and in the part outside the lower water tank of the mold, due to the weakening of cooling effect, the temperature of copper plate will rise. The application of H65 copper strip is much more extensive than that of pure iron. Every year, 50% of copper is purified into pure copper by electrolysis, which is used in electrical industry. The red copper mentioned here really needs to be very pure, containing more than 99.95% copper.

A very small amount of impurities, especially phosphorus, arsenic and aluminum, will greatly reduce the conductivity of copper. Oxygen in copper (a small amount of oxygen is easy to be mixed in copper smelting) has a great influence on the conductivity of copper. Copper used in the electrical industry is generally oxygen free copper. In addition, lead, antimony, bismuth and other impurities will make the crystal of copper unable to combine together, resulting in hot brittleness, and will also affect the processing of pure copper. This kind of pure copper with high purity is generally refined by electrolytic method: use Impure Copper (i.e. crude copper) as anode, pure copper as cathode and copper sulfate solution as electrolyte. When the current passes through, the Impure Copper on the anode melts gradually, and the pure copper precipitates on the cathode gradually.

The purity of copper thus refined can reach 99.99%. The copper plate is not limited by the processing temperature. It is not brittle at low temperature. The hot-melt welding method such as oxygen blowing can be used at high melting point. The copper plate has good corrosion resistance, which can ensure the waterproof effect of the tunnel in a long time. The temperature field of H62 brass plate is very uneven along the width direction, and the temperature distribution is wave like. The temperature of reinforcement between two adjacent water joints is higher than that in the water joint area. Under normal production conditions, that is, the pulling speed is below 6 m / min, the hot surface temperature of the mold is lower than the recrystallization temperature of copper, which proves that the design of the mold is reasonable. Chemical cleaning is to use acid or acid salt of different strength to dissolve the scale. No matter it is simple acid solution or complex solution, it is the abnormal state that the acid liquid directly contacts with the equipment, and it is the situation that does not want to cause equipment corrosion.

In addition to the direct erosion of cleaning solution, for the need of descaling, increasing the temperature and speed of cleaning solution will aggravate the corrosion. The corrosion damage of the equipment in the cleaning process is shown as uniform corrosion in the cleaning process; local corrosion in the corrosion; block area corrosion caused by the cleaning solution entering into the deep hole or gap; alloy decamponent corrosion caused by the cleaning solution; intergranular corrosion caused by the cleaning solution; corrosion caused by hydrogen absorption of metal in the cleaning process. The brass plate has processing adaptability and strength, and is suitable for various processes and systems such as flat lock system, vertical edge occlusion system, BEM system, unit wall plate, rain drainage system, etc. It is suitable for all kinds of machining requirements of these systems, such as arc bending, trapezoid, corner, etc. The stable protective layer makes the service life of copper plate exceed 100 years.

The economic performance price ratio of copper bar is one of the best metal roofing materials. There are a variety of surface treatments to meet different architectural needs. H62 Brass Belt has processing adaptability and strength, and is suitable for various processes and systems such as flat lock system, vertical edge occlusion system, BEM system, unit wall plate, rain drainage system, etc. It is suitable for all kinds of machining requirements of these systems, such as arc bending, trapezoid, corner, etc. There are a variety of surface treatments to meet different architectural needs. Copper oxide plate, can form a uniform appearance of brown. It is used for renovation of old buildings or new buildings with special requirements. The original copper plate has the characteristics of gradual change of metallic luster, making the building as if it had life. Tin copper plate can reach the effect of titanium zinc plate. The stable protective layer makes the service life of copper plate exceed 100 years.