Foaming method of refrigerator door

The freezer door is one of the most important parts in the refrigerator, which effectively isolates the temperature inside and outside the refrigerator to ensure the freshness of food and drinks. Therefore, it is very important to ensure the thermal insulation performance of the freezer door. In order to achieve the best effect, the freezer door must have a good insulation layer, usually made of foaming agent. Here are some ways to foam the refrigerator door:

1. spray method: this method uses a sprayer to spray foaming agent on the door of the freezer to foam. Generally, the door panel should be primed first, and then the foaming agent should be sprayed evenly. The foaming agent will expand rapidly, filling the gap inside the door panel and forming a solid insulation layer.

2. Covering method: This method covers the door of the freezer with a shell. The interior of the shell is filled with foaming agent. Put it on the door panel, and after a few minutes, the foaming agent will expand and fill the gap. This method is very suitable for large doors or doors with special shapes.

3. Interpolation method: This method uses interpolation equipment to drill holes in the door panel and inject foaming agent through the holes. The foaming agent expands rapidly and fills the holes and gaps in the door panel. This method is suitable for small door panels and doors that need special customization.

4. Pouring method: This method is to pour the liquid foaming agent into the door panel and wait for it to solidify. This method is very suitable for large door panels, especially for freezer doors that need to protect internal items.

In short, these methods can effectively foam the freezer door, thus improving the thermal insulation performance of the refrigerator and achieving the best effect. But if you don't know the technical details of foaming, it's best to ask professionals to install and maintain it to ensure safety and effectiveness.