White iron as a common decoration material, in many places can be useful. Just listen to the name, may not necessarily familiar to you, as a common life and production of a metal material, you may have seen it unintentionally, such as restaurants, kitchen ventilation pipe, tin house, etc., it is very useful in our lives, although the name is a little bit rustic, but the cost-effective but quite high, both cheap and durable, the role is very powerful it. Today, the little rabbit for you to introduce it in detail!

Introduction of white iron:

White iron, also known as galvanized sheet continuous hot-dip galvanized thin steel sheet, is a thickness of 0.25 ~ 2.5mm of cold-rolled white iron and steel strip, the steel strip is first passed through the flame-heated preheating furnace, burned off the surface of the residual oil, while generating a film of iron oxide on the surface, and then into the reduction annealing furnace containing a mixture of H2, N2 gas Heated to 710 ~ 920 ℃, so that the iron oxide film is reduced to sponge iron, surface activation and purification of the strip cooled to a temperature slightly higher than the temperature of the molten zinc, into the 450 ~ 460 ℃ zinc pot, the use of air knife to control the thickness of the zinc layer surface. Finally it is passivated by chromate solution to improve the resistance to white rust.

White Iron Sheet Composition and Structure:

White Iron Sheet has a beautiful surface, block or leafy plating crystalline pattern, and the coating is firm, with excellent resistance to atmospheric corrosion, at the same time, White Iron Sheet has a good welding performance and cold working molding performance. Compared with the surface of the electro-galvanized sheet, its plating layer is thicker, mainly used for the requirements of corrosion resistance of the stronger wrench gold parts.

White iron applicable grade:

Zn100-PT, Zn200-SC, Zn275-JY

White Iron Structure Classification Code:

1.Z-Normal zinc flower: Zinc flower obtained by crystallization at normal cooling rate. X-small zinc flowers: cooling rate is specially controlled, the size of zinc flowers is smaller than normal zinc flowers, suitable for painting and other occasions where normal zinc flowers do not meet the requirements;

3. GZ-glossing zinc flowers: small zinc flowers after the finishing process, suitable for deep-drawing and ultra-deep-drawing processing and surface roughness requirements of the occasions of low.

White Iron Sheet Processing Performance Designation:

PT-General Purpose, JY-Mechanical Bite, SC-Deep Punching, CS-Extra Deep Punching, JY-Structure.

White Iron Sheet Zinc Layer Weight Designation:

Z100, Z200, Z275; Zinc Layer Weight refers to the total amount of zinc contained on both sides of the steel sheet, expressed in grams of zinc per square meter of steel (g/m2), such as Z100 indicates that the zinc content of its zinc is not less than 100g/m2.

White iron marking example:

Zinc layer weight 275g/m2, processing performance JY, surface structure Z, surface treatment Y, dimensional accuracy B, length × width × height dimensions 0.70mm × 700mm × 2000mm steel plate marked as: steel plate 275-JY-Z-Y-B-0.70 × 700 × 2000- GB2518-81

White Iron Sheet Origin:

Baosteel, Ansteel and Wugang, etc.

Actually, you can apply white iron sheet to your home when you are decorating. For example, some of the balcony guardrail and so on, the surface is relatively smooth, and will not hurt people. And it has a good quality will not rust, even if the wind and rain sun and rain will not rust Oh. And generally speaking in the hardware store can buy, the price is not very expensive. In the purchase, remember to compare three, according to the actual needs of the purchase, it is best to find a professional home tailored, so you will not waste money.