If you want the board to last longer, the bonding strength must meet the standard first.

Why do some cabinets last a long time, while others become deformed or delaminated after just a few years? To understand the reason, we must first talk about the materials used in the cabinets. As the saying goes, if you want the boards to last a long time, they must meet the strength standards first. Here is a detailed introduction.

What is bond strength? There are two main indicators of plate bond strength: internal bond strength and surface bond strength.

Internal bonding strength is one of the main indicators for measuring the physical and chemical properties of boards, and is one of the key points in board product quality inspection and control. It can reflect the quality of bonding between fibers inside the board. The higher the value, the better the board's ability to withstand temperature changes, the higher the bonding quality, and the less likely it is to have problems such as delamination and cracking.

Factors such as average density, core density, adhesive type, adhesive dosage, hot pressing temperature, and hot pressing pressure significantly influence the internal bond strength of the board. Increasing core density directly increases the internal bond strength of the board. Increasing the adhesive dosage increases the area covered by the adhesive, strengthening the bonding between fibers and ultimately increasing the internal bond strength of the board.

Surface bond strength reflects the processing and use performance of the board product. If this performance does not meet the standard, the board will experience problems such as loose structure, delamination, and detachment of the decorative surface during use. If the surface of the board is relatively rough and uneven, its surface bond strength will be weakened.

Optimizing the hot pressing process

The three key elements of the hot pressing process are pressure, temperature, and time. Advanced hot pressing equipment ensures uniform stress on the panels; precision digital pressure gauges accurately control the hot pressing temperature; and professionals assess factors such as the panels' moisture content and density to determine the optimal hot pressing time. This combined approach ensures that the core layer of the panels is adequately and evenly heated after the hot pressing process, increasing core density and enhancing internal bond strength.

Strictly control the gluing process

The gluing process is a process that tests experience, eyesight and hand speed. Professional and technical personnel are assigned to the board positions and strictly follow the standard operations required by the process to ensure that "the board does not drop any glue and does not shift its position at all". In addition to maintaining sufficient glue application amount and evenly spreading it, the area of ​​the board covered by the environmentally friendly adhesive is increased, the bonding ability between fibers is enhanced, and the bonding strength within the board is thereby improved.

Upgrading the sanding process

Upgrading the sanding process for boards, for example, increasing the number of sandings from two to three times for rough boards, is designed to achieve better quality. Multiple sandings can remove the pre-cured layer, resulting in a smoother, flatter surface and improved surface bonding strength.

Both the surface bonding strength and the internal bonding strength meet the standards, and the board quality is strong and tough, so it can be used for a long time!