The building template has an important influence on the quality control of the project in the construction of the project. The smoothness and flatness of the formwork surface will directly affect the flatness of the engineering concrete surface. Therefore, template production should be based on strict production process control, and the production process technology should be improved in the links of raw materials, glue coating, hot pressing and trimming. The specific production process is as follows:
1. Raw material cutting: The raw material is cut according to the log. The log is cut horizontally according to a certain layer thickness, and the wood layer is cut into the same proportion according to the size of the template, and the wood layer is cut The magazine on the surface is removed, and the magazine can affect the adhesion fastness of the late glue.
2. Drying and drying treatment: The wood layer after cutting and peeling contains relatively large moisture. Therefore, for large-scale production, we need to dry it through a wood dryer, and the dried wood layer is relatively brittle Therefore, it should be placed naturally for 2-3 days to ensure the toughness of the wood layer. In a small amount of cases, we can use sunlight for drying.
3. Gluing and laminating treatment: A formed building template is made of multiple layers of wood panels and glued together. A special glue roller is installed to pass the wood panels through the glue filling machine. , The front and back sides of the board will be evenly coated with glue layer. Place the glue-coated wood board on the surface of the template, and evenly spread 6-10 layers (as required).
4. Hot pressing process: The template layer is laid by glue and flattened by hot pressing process. The traditional heating uses the boiler water to transfer heat for heating, and the modern equipment room uses electric heating. After flattening, the density of the building template can be increased, the forming is more regular, and the quality of the template is improved. The process of pre-pressing and then hot-pressing is adopted to reduce the probability of misalignment of the blanks to the highest degree, and then applying reasonable pressure and temperature to hot-press to ensure that each Chinese building template has good bonding strength and hardness.
5. Spray painting and trimming packaging treatment: After the heat-pressing treatment of the building template, there will be a few internal wood boards with misalignment and irregular corners. Use a knife to cut the excess boards, and spray anti-corrosion paint to prevent corrosion Paint is an important factor to ensure the service life and storage time of building templates. The construction template has the advantages of light weight, large bearing capacity, convenient use of bottled, smooth surface, and anti-corrosion.
