Galvanized Steel Sheet Manufacturing Process

Cool rolled sheet metal is also frequently galvanized.

Galvanized steel sheet manufacturing process.

In this process steel is passed as a continuous ribbon through production and into a bath of. Hot dipped galvanized steel sheet in coil is cold rolled steel coil coated with zinc on two sides by a continuous hot dip process. The manufacture of rolled galvanized color coated steel sheet. The manufacture of rolled galvanized color coated steel sheet.

The most common method of zinc coating is the hot dip process. Nuts bolts tools and wires of all kinds are now galvanized because it is a cheap process and helps boost the metal s lifespan. Sheets process center conventional galvanized steel prior art date 1945 11 26 legal status the legal status is an assumption and is not a legal conclusion. The hot dip process consists of submerging the carbon steel into a molten zinc bath approximately 680 degrees fahrenheit.

In a non oxidative atmosphere and dipping the nickel coated steel sheet into a molten zinc bath containing aluminum at a content of from 0 1 to 1. Galvanized steel in particular is often what is used in modern steel frame buildings. Galvanized steel is a carbon steel that has been coated with zinc. This method tightly adheres the coating to the steel with an iron zinc alloy bonding layer formed by a diffusion process while the heated steel strip is in contact with the molten zinc.

Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed expired lifetime application number us630907a inventor nicholas p veeder. Process for manufacturing a galvanized steel sheet comprising steps of coating a steel sheet with nickel in an amount of from 0 2 to 2 g m 2 heating the steel sheet thus coated to a temperature within the range of from 420 c. When exposed to the atmosphere the pure zinc zn reacts with oxygen o 2 to form zinc oxide which further reacts with carbon dioxide co 2. The continuous hot dip coating process according to astm a653 specification for steel sheet zinc coated galvanized or zinc iron alloy coated galvannealed by the hot dip process is a widely used method to coat sheet products prior to fabrication.