1. Patchwork is too narrow. The greenhouse film is composed of a plurality of narrow film splicing, and the bonding area is increased during the splicing to increase the bonding strength. If the seam is too narrow and the bonding area is small, it will cause a seam when pulled hard. 2. Press the film with thread. After the large shed is covered with a film, it should be immediately pressed with a lamination line. Generally, one lamination line is pulled every 1-2 scaffolds, and the elasticity of the line should be moderate. At the same time, a simple windbreak is set up on the windward side. Otherwise, the thin and light film of the greenhouse can easily be blown under the strong winds of the winter and even be blown up by strong winds. 3 film damage to repair. The film is easily broken during use and storage, and temporary repair can be used during breakage. Water method: Scrub the damaged place, cut a piece of film with no hole that is slightly larger than the damaged place, put the water on the hole, drain the air between the two films, and press the flat. Paper-making method: The plastic film is slightly damaged. After the paper is wetted, it is put on the damaged part. Generally, it can be used for about 10 days. Pasting method: Use white flour to add water to make a paste, and then add brown sugar equivalent to 1/3 of the weight of dry flour. After heating it slightly, it can be used to make up the film. After the shed is removed, permanent repair must be used. The thicker film is damaged and can be covered with a film of the same texture and connected with a thin line. Can also be washed at the damaged area, with a slightly larger film to cover the hole, and then 2-3 layers of newspapers, with iron gently ironing along the interface, the two films were heated paste, after cooling will stick to Together, this method is called hot patching. Rubber repair method: wash the hole around the hole, use a special brush to apply glue, after 3-5 minutes, take a piece of film with the same texture on the top, the glue can be fixed after drying. Hot and plastic repair method: The effect of the film is good, but the method of seam repair is not only leaky, but also easy to pull open, and it is better not to use thicker film for texture. 4. Dig pits when they are disabled. During the collection period, the film must be protected from exposure, smoke, and fire. Otherwise, its service life is greatly shortened. Practice has proved that the best storage method for greenhouse films is digging and burying. After the production of greenhouses is completed, the removed membranes should be washed and dried first, covered or rolled up, wrapped in old membranes, selected in a place where the dryness and humidity of the soil are moderate to dig a pit, and then the wrapped membranes should be buried in the pits. Note that the upper layer of the film should be more than 30 cm from the ground. This method can avoid the agricultural film stored in the air due to aging brittle, and shorten the service life. Boom Barrier,Boom Barrier Gate,Manual Boom Gate,Portable Boom Gate Shenzhen Unisec Technology Co.,ltd , https://www.uniqscansecurity.com