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Hot-dip galvanizing 10 questions (1)

Update:2020-01-08   View(s):130   Keywords :   

[1] Q:What is the main use of hot-dip galvanized sheet?

A: Hot-dip galvanized sheet is mainly used in construction, home appliances, automobiles, machinery, electronics, light industry and other industries.

[2] Q:What types of galvanizing methods are currently in the world?

A: There are three types of methods: electro galvanizing, hot galvanizing and galvanizing.

[3] Q:Which two types of hot-dip galvanizing can be divided according to the annealing method?

A: According to the subsequent annealing furnace method, it can be divided into continuous withdrawal and hood withdrawal.

[4] Q:What are the common steel types of hot-dip galvanized sheet?

A: Product Type:General Commodity Roll (CQ), Galvanized Sheet for Structure (HSLA), Deep Drawing Hot-Dip Galvanized Sheet (DDQ), Baking Hardened Hot-Dip Galvanized Sheet (BH), Duplex Steel (DP), TRIP steel (transition-induced plasticity steel), etc.

[5] Q:What are the main defects of hot-dip galvanizing?

A: Mainly: shedding, scratches, passivation spots, zinc particles, thick edges, air knife streaks, air knife scratches, missing plating, inclusions, mechanical damage, poor adhesion performance, edge waves, curl, size mismatch , Zinc layer thickness is not the same, roller printing, etc.