Quality control in the production process of melamine impregnated paper faced MDF (particleboard) Production process The production process of melamine impregnated paper faced MDF (particleboard) is as follows: substrate preparation → dust removal on the board surface → preforming → hot pressing → trimming → inspection → warehousing.During the production of substrate quality control, the quality of MDF substrate and …

Common quality defects of melamine impregnated paper faced MDF (patterned board) and their causes 1. Poor physical properties ① Low hot pressing temperature or short hot pressing time, incomplete tree curing, and easy adhesion of dust on the board surface during use, not easy to clean, resulting in dirty surface. ② The hot pressing temperature is too high, the surface …

Analysis of factors influencing the quality of melamine impregnated paper panels boards Guide: To produce high-quality products, we must select excellent impregnated paper and substrate, and adopt reasonable processing technology; In addition, operators and inspectors should cooperate with each other to control the quality of products, find out the causes of problems and solve them in time, so as to …

Reasons for Cracking of Melamine Paper in Melamine paper Panel Melamine paper will crack in daily use, which is mainly caused by uneven dryness of various parts of wood. In the industry, according to the parts where cracks occur, they are generally called cracks, surface cracks, internal cracks and wheel cracks; The size and number of cracks will vary depending …

Methods to judge the quality of melamine wood based panels board (Substrate such as Plywood,Blockboard,MDF ,Particle Board) We can often see the use of melamine wood based panels board (Substrate such as Plywood,Blockboard,MDF ,Particle Board) manufacturers’ products in our daily life. When purchasing wood based panels board (Substrate such as Plywood,Blockboard,MDF ,Particle Board)s, we should check the quality to ensure …

 Poor physical performance The hot pressing temperature is low or the hot pressing time is short, the resin curing is incomplete, and the surface of the melamine paper is easy to stick dust during use, which is difficult to clean and forms a dirty surface. The hot pressing temperature is too high, the hot pressing plates surface temperature is uneven or the …

Core plies number, strength and production cost of plywood in China The number of plywood layers will increase by 2 for every 3mm increase in plywood thickness;Plywood with the same thickness has higher strength with more layers; For example, the strength of 15 layers of 18mm plywood is greater than that of 13 layers of 18mm plywood;For plywood of the …

Causes and Prevention Measures of Plywood Bubbling in China In the plywood production process, hot pressing is a very important process, which is an important process to finalize the product. It is irreversible. Once quality problems occur, especially bubble will bring great losses to the company. Therefore, it is necessary to understand and master the causes and prevention methods of …

Defects easily occurred during hot pressing of plywood in China and solutions 1、 Bubbling and partial delamination Causes: 1. The moisture content of veneer is too high or the drying is uneven 2. Too much glue 3. The pressure drop speed is too fast or the hot pressing temperature is too high 4. Insufficient resin condensation 5. Insufficient hot pressing …

Bubbling, delamination , warping, common problems of plywood hot pressing in China 1、 Bubbling and partial delamination Causes: 1. The moisture content of veneer is too high or the drying is uneven 2. Too much glue 3. The pressure drop speed is too fast or the hot pressing temperature is too high 4. Insufficient resin condensation 5. Insufficient hot pressing …