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 …

How to solve the problem of low bonding strength of plywood in China Plywood is a kind of building board that is often used by people. This kind of board is not cut from a large piece of wood, but is glued together by using adhesives. With the progress of technology and the strict requirements of plywood manufacturers, the service …

Quality problems and solutions in plywood production in China In the production process of any kind of product, there will be some quality problems. There are many and complex factors that affect the product quality, including the quality of raw materials, the insufficient precision of processing equipment, or the unreasonable processing technology arrangement. Of course, the other important reason is …

Defects of Chinese Plywood and Their Causes: Structural Defects and Appearance Defects Glue strength defect Low bonding strength The bonding strength of plywood is lower than the specified value of the standard. The reason is that the quality of adhesive is poor; The hot pressing conditions are not well controlled, such as low hot pressing temperature, insufficient pressure or short …

Analysis and Control of Common Quality Defects of Plywood in China At present, China is a big plywood exporter and the largest plywood producer in the world. However, on the one hand, China’s plywood products are frequently squeezed by foreign trade barriers, on the other hand, they are impacted by international advanced productive forces, facing huge challenges and threats from …

1、 Twisiting or Warpping caused by water content difference in some internal areas. In the production of plywood, for example, the chips of particle board and the fibers of medium density fiberboard are not evenly dried in some areas, or are not evenly distributed in the whole process of glue application. The veneer coating is not symmetrical in plywood production. There …

A product made especially for the structural bracing of houses. It is made with an ‘A’ bond glue line. Plywood Bracing is suitable for use in wall and roof bracing applications. Using bracing in timber framed buildings affords designers the opportunity to incorporate large openings and areas of glass in external walls or additional wall strength for cyclonic areas. Made from …

Bracing Test (Layout Below)• Walls were constructed using 90 x 45 MSG8 studs (600 centres), plates and nogs.• For 6.5mm and 7mm the plywood was fixed with 50 x 2.8 galvanised clouts at 150mm cen- tres around the perimeter and at 300mm centres in the middle.• For the 12mm Plywood 50 x 2.8mm Annular Grooved Stainless steel fixings were used …