Electric sliding door panel adopts double-layer hot-dip galvanized steel sheet filled with polyurethane foam. The double-layer steel sheet reduces heat energy consumption, 42kg / m3 high-density polyurethane insulation, and good thermal insulation effect.

Hot-dip galvanizing is the reaction of molten metal with an iron substrate to produce an alloy layer, thereby combining both the substrate and the plating layer. Hot-dip galvanizing is to pickle iron and steel parts first. In order to remove iron oxide on the surface of iron and steel parts, after pickling, it is cleaned in an ammonium chloride or zinc chloride aqueous solution or a mixed aqueous solution of ammonium chloride and zinc chloride. , And then sent to the hot-dip plating bath. Hot-dip galvanizing has the advantages of uniform coating, strong adhesion, and long service life.

Polyurethane rigid foam is a new type of synthetic material with thermal insulation and waterproof functions. Its thermal conductivity is low, only 0.022 ～ 0.033W / (m * Κ), which is equivalent to half of the extruded board. It is the thermal conductivity of all current thermal insulation materials. lowest. Has the following advantages:

1. High efficiency and energy saving, no gap after filling, strong bonding after curing;

2. Shockproof and pressure-resistant, no cracking, no decay, no falling off after curing;

3. It has ultra-low temperature thermal conductivity and heat-resistant insulation;

4.Efficient insulation, sound insulation, waterproof and moisture proof after curing

In turn, the ideal industrial door has many advantages: thermal insulation, noise isolation, wind resistance, sealing, etc.