Natural gas heating galvanized
Advanced gas with hot dip galvanizing process, the zinc layer requirements ≥40D. Spray anti-rust treatment, oxidation resistance stronger, better properties than the use of electrically heated hot-dip galvanizing.
| Technical | Firsteelcords | Famous manufacturers in China | Other |
|---|---|---|---|
| Materials | 72A Sha Steel | 72A Sha Steel | 60-70 steel, Huaigang, Yonggang |
| Heat treatment method | Natural gas heating furnace Thermal≥1000℃ |
Natural gas heating furnace Thermal≥1000℃ |
Coal or electric heating Thermal≥800-900℃ |
| Galvanized method | Galvanized high-speed non-oxidizing gas Steel layer weight ≥40g/m² |
Gas heating galvanized Steel layer weight≥30g/m² |
Mix and hot dip plating, using electric heating Steel layer weight≥20-35g/m² |
| Mechanical behavior | With the introduction of the gas heater, steel strip through good breaking force ≥53KN, then the user can design requirements. | With the introduction of the gas heater, steel strip through good breaking force ≥53KN, then the user can design requirements. | Heating with electricity and coal, poor stripping, brittle wire, etc. |
| Twisting performance | Heavy market with the introduction of double twist machine production, the endless wire, no rotation. | Mining export products have two sets of equipment, other countries within domestic product for the domestic equipment. | With domestic production of outdated equipment in the 1970s. |
| Flexibility | With high flexibility, pulley hoist basket to less wear, longer life. | Its flexibility in general. | Flexible and hard, unstable. |
| Anti-rust performance | Because the zinc layer is ≥40g/m², the production adopts oil and gas spray production, which is not completely immersed in water and no rust for ≥2 years. | Its domestic production facilities without spray system. The zinc layer is ≥30g / m². Easy to rust. | Poor Average shorter life antioxidant capacity. |
