O9W0000521 0.4*1000" C Silver Grey Fluorocarbon Color Coated Steel Coil, Genuine Baosteel Color Coated Sheet Price for Purification * High-Quality Purification White Grey Color Coated Steel Coil 0.5*1200PEZ120 Baosteel Color Coated Steel Coil

　　Specs

　　FA Color Coated Coil (Galvanized) 1.0*1200*C Pearl White 2/1M Baosteel 3.32 O8W0003421 Negotiable Yongkong Warehouse

　　FA Color Coated Coil (Galvanized) 1.0*1200*C Pearl White 2/1M Baosteel 3.385 O8W0003420 Negotiable Yongkong Warehouse

　　TDX51D+AZ 1.5*1250*C Light Jade/Yellow/Gray Black Angang 9.92 XXX Negotiable On the Way

　　TDX51D+AZ 1.5*1250*C Light Jade/Charcoal Grey Anshan Steel 9.496 XXX Negotiable On its way

　　TDX51D+AZ 1.5*1250°C Grey Jade/Grey Black Angang Steel 9.586 XXX Negotiable On the Way

　　TDX51D+AZ 1.5*1250*C Grey Jade/Charcoal Grey Angang 9.73 XXX Negotiable on-site

　　TDX51D+AZ 1.5*1250*C Light Jade/Yellow/Gray Black Angang Steel 9.486 XXX Negotiable on Delivery

　　TDX51D+AZ 1.5*1250*C Light Jade/Charcoal Grey Angang 9.692 XXX Negotiable On the Way

　　TDX51D+AZ 1.5*1250*C Grey Jade/Gray Black Angang 5.086 XXX Negotiable On the way

　　0.35*1200～～5490

　　0.37*1200～～5420

　　0.4*1200～～ 5350

　　0.42*1200～～5320

　　0.45*1200～～5290

　　0.47*1200～～5260

　　0.5*1200～～ 5240

　　Explanation of Baosteel Color Steel Sheet Materials

　　Microwave Oven Enclosures: TSTCD, TDC51D+Z, thickness 0.45-0.6mm, oil-resistant coating.

　　Refrigerator U Shell: TDC51D+Z, thickness 0.4-0.5mm, KY oil-resistant coating.

　　Refrigerator Door Shell: TSTCD, TDC52D+Z, thickness 0.4-0.5mm, KY anti-oil stain coating.

　　Refrigerator cabinet shell side panels, back panel, and door cover shell: TSTCD, TDC52D+Z, thickness 0.4-0.5mm, oil-resistant coating.

　　Oil-resistant, waterproof steel sheet with a dual-anti-surface structure design (hydrophobic + oleophobic) featuring oil resistance and easy cleaning, with all other properties meeting the requirements of home appliance PCM.

　　Oil-resistant color coated steel sheet has excellent hydrophobic and oleophobic properties, offering better slipperiness than ordinary coatings, significantly reducing dust adhesion, and possesses a certain graffiti resistance effect; at the same time, it also improves the coating's washability, maintaining the coating's appearance clean and tidy for a long period. Oil-resistant color coated steel

　　Panels are suitable for electrical appliances' exterior sides in kitchens, bathrooms, and other situations requiring certain easy-to-clean requirements.

　　Welding galvanized steel plates requires considering the coating first, as different thicknesses and types of coatings have varying requirements for welding. However, there is also a certain pattern to it.

　　Firstly, the thicker the coating, the greater the welding difficulty. The material this friend sent in includes electroplated zinc with a zinc layer thickness of 20/20, which did not have any welding issues. However, the one with a zinc layer thickness of 50/50 did have problems; the zinc layer thickness changed. If the welding process remains unchanged, it's prone to issues.

　　Issues.

　　Next, the difficulty of welding varies with different coatings, and the following is the order of welding difficulty:

　　The common coatings we see today typically contain zinc, aluminum, or magnesium. Looking at these three elements, aluminum is the most difficult to weld, followed by zinc. Therefore, coatings with higher aluminum content are more challenging to weld, and the same applies to zinc.

　　The zinc-iron alloy coating is more weldable than pure zinc coatings, as some of the iron from the base plate has渗透 into the zinc layer, reducing the zinc content.

　　Galvanized aluminum is easier to weld than zinc aluminum magnesium, while aluminum-zinc is more difficult, due to the different aluminum contents among the three, as shown in the table below:

　　Types of Coating | Coating Requirements

　　Galvanized Aluminum (ZA) with 5% Aluminum (Al), the remainder being Zinc (Zn) and other elements

　　Galvanized Aluminum Magnesium (ZAM) with 5.0%-13.0% Al, 2.0-4.0% Mg, 1.0% of other elements, the remainder being Zn.

　　Aluminized Zinc (AZ) coating, with approximately 55% aluminum by mass, 1.6% silicon by mass, and the remainder being zinc.

　　The table shows that the zinc-aluminum (ZA) alloy has a low aluminum content, followed by ZAM, while the aluminum-zinc alloy reaches 55% aluminum content, making welding more challenging.

　　Afterward, we return to the question at the beginning of the article: With increased coating thickness, how should the welding be done? When other parameters are the same but the coating thickness varies, as the coating thickness increases, the minimum welding current Imin should be raised, and the maximum welding current Imax should be lowered, resulting in the following...

　　Welding current range reduced.