Summary: TemperatureWhen the temperature is high, the coating becomes soft and the corrosive medium is easy to adhere. It penetra...
When the temperature is high, the coating becomes soft and the corrosive medium is easy to adhere. It penetrates easily into the base coil and high temperature water. At a certain temperature, the oxygen content increases and the corrosion rate increases.
The corrosion of the base coil at the cutting and processing damage belongs to electrochemical corrosion, and it is not easy to form a corrosive battery (ie, electrochemical circuit) under low humidity.
3. Temperature difference between day and night
In addition, the large temperature difference also leads to frequent hot and cold deformation of the coating, which accelerates the aging and loosening of the coating, and the external corrosive medium easily penetrates into the bottom roller.
4. Sunshine time and sunshine intensity
Sunlight is an electromagnetic wave, which can be divided into two parts according to energy and frequency: gamma rays, X-rays, ultraviolet rays, visible light, infrared rays, microwaves and radio waves. Waves and radio waves have low energy and do not interact with matter. Infrared is also a low-energy spectrum that stretches or bends the chemical bonds of substances rather than breaking them. Visible light gives everything a rich color. Ultraviolet spectrum is a high frequency ray, which is more destructive than low energy spectrum. It is well known that skin dark spots and skin cancer are caused by the sun's ultraviolet rays. Likewise, UV light can break the chemical bonds of substances. It depends on the wavelength of the UV light and the strength of the chemical bonds of the substance. X-rays are penetrating, and gamma rays break chemical bonds and create freely charged ions lethal to organics, thanks to their rarity in sunlight. It can be seen that the sunshine time and intensity have an impact on the stability of the coating structure, especially in areas with strong ultraviolet rays.
4. Rainfall and the acidity of rainfall
Rainfall acidity is definitely not good for corrosion resistance. However, rainfall has a dual effect. For wall rolls and roof rolls with large slopes, rainfall has the effect of cleaning the surface of steel rolls and washing away surface corrosion products, but for low-slope roof rolls and parts with poor drainage, rainfall If it is large, it is easy to cause corrosion aggravation.
5. Wind direction and wind speed
The effect of wind direction and speed is similar to that of water, and it is often accompanied by it. It is a test for the connection parts of materials, because the wind will cause the connection parts to loosen and rainwater will penetrate into the interior of the building.
Color-coated steel coil refers to color-coated steel coil. Color-coated steel coil is a kind of steel coil with organic coating. It has the advantages of good corrosion resistance, bright color, beautiful appearance, convenient processing and molding and the original strength of steel coil. And low cost and so on. Do medium and high-grade color steel stainless steel doors, looking for Ronggao Door Industry. Advantages The roofs of low-rise villas with earthquake resistance are mostly sloping roofs, so the roof structure basically adopts a triangular roof truss system made of cold-formed color steel components. , forming a very strong "rolled rib structure system", this structural system has a stronger ability to resist earthquakes and horizontal loads, and is suitable for wind-resistant color steel structure buildings with a seismic intensity of more than 8 degrees. Light weight, High strength, good overall rigidity and strong deformation ability. The weight of the building is only one-fifth of that of the brick-concrete structure, and it can resist a hurricane of 70 meters per second, so that life and property can be effectively protected. The durable color steel structure residential structure is all composed of cold-formed thin-walled steel components, and the steel frame is made of super anti-corrosion high-strength cold-rolled galvanized coils, which can effectively avoid the effect of corrosion of color steel coils during construction and use, and increase light steel components. service life. The structural life can be up to 100 years. The thermal insulation material used in the thermal insulation color steel sandwich roll is mainly glass fiber cotton, which has a good thermal insulation effect. The use of thermal insulation rolls on the outer wall can effectively avoid the "cold bridge" phenomenon of the wall and achieve a better thermal insulation effect. The thermal resistance of R15 insulation cotton with a thickness of about 100mm can be equivalent to a brick wall with a thickness of 1m. The sound insulation effect is an important indicator of the residence. The windows installed in the color steel + light steel system are all made of insulating glass, which has a good sound insulation effect, and the sound insulation is above 40 decibels; the wall composed of light steel keel and thermal insulation material gypsum roll The sound insulation effect can be as high as 60 decibels.
With high anti-rust performance, they are popular used in construction, automobile, and household appliances. For example: roof, roof components, refrigerators, air conditions, dustbin, and billboards, etc.
Port: Zhejiang, China
Standard:ASTM, GB, JIS
Special Use:silicon steel