Nowadays, there are three main products in the water heater market: gas water heater, electric water heater and solar water heater. Solar water heater is usually composed of collector, adiabatic water storage tank, connecting pipe, support and control system. Among them, vacuum tubes, water tanks and other accessories are rectangular galvanized tubes. However, the demand for galvanized steel pipes varies with different manufacturing processes.
At present, the demand situation in the industry is that some famous brand enterprises have relatively stable demand for galvanized steel pipes and smooth channels, so the quality is also guaranteed.
Although the solar energy production industry is a new channel for galvanized pipe sales, how to consolidate and stabilize this sales chain should be considered. At the same time, the solar energy production industry should standardize the technology and materials in the industry.
Why galvanized steel pipe should not be re-welded after cutting: because galvanized steel pipe should not be re-welded after cutting, the main reason is that welding together will not achieve the previous effect. First, the galvanized layer at the welding site will certainly be damaged and toxic gases will appear during the welding process, and the welding performance is not good. Second, galvanized steel pipes rely on the protection of galvanized layer to prevent corrosion, which is more likely to lead to corrosion of steel pipes. It is not recommended that galvanized steel pipes be welded together if they are cut.
Discrimination of galvanized pipes: Galvanized pipes on the market are mainly divided into hot-dip galvanized and galvanized. Because zinc hardly changes in the air, if we cover the steel pipe with a layer of zinc, we can prevent the corrosion of the steel pipe in the air. This kind of steel pipe is called galvanized pipe. The performance of galvanized pipe is better than other pipes. So when choosing galvanized pipes, how to distinguish the advantages and disadvantages of galvanized pipes? Let's see how the galvanized pipe manufacturer distinguishes. Let's share his experience.
1. Smooth appearance, no zinc tumors, burrs, silver white;
2. The thickness is controllable and can be chosen arbitrarily within 5-107 um.
3. Without hydrogen embrittlement and temperature hazard, the mechanical properties of the material can be guaranteed unchanged.
4. Good corrosion resistance, neutral salt spray test up to 240 hours.