Three Ways of Forming Polyurethane Plastic Track and Field Ground Layers
What is the operation of the plastic surface layer of the Janstha molding method?
This is the most common surface forming method. It is a rough surface layer formed by spreading rubber granules or granules made of polyurethane as a raw material after artificially spreading it on a plastic site. The size of Yanza's rubber particles is 2-4mm, with an angular shape, the Jansal tool is Daping, and the height of Yansa is between 50-l00mm from the plastic surface layer. It is not allowed to directly withdraw. Yansa must be uniform. Land on the plastic surface. Yansa's time depends on the temperature conditions at the construction site. At present, the artificial test method is used, that is, with the index finger, gently stick the paved plastic surface layer, pull up the 9-l0mm slender wire, whichever time If there is no wire, too late, too short time, short silk or filaments, too early or too late to spread, it will greatly affect the adhesive effect of rubber. This will directly affect the service life of the plastic field. Even rubber particles can be used in a short time. Shedding occurs.
Extrusion spray molding is how to operate?
This is a phase-by-phase mechanical power molding method. The construction progress is fast and the surface roughness is very good. After use, the reaction effect is good. Because there are no Zanzi rubber particles on the surface, it can overcome some of the disadvantages caused by the Yansa rubber particles. .
This molding method is suitable for multi-layer work and is used in the last layer of work. It uses the air compressor as the main power, equipped with hoses and nozzles, will be a good mix of surface materials, through the hose storage container nozzle, directly sprayed on the plastic surface layer, forming irregular shape, to be completely cured, Plays a non-slip, wear-resistant effect. The nozzle surface is about 20-30cm in operation, and the nozzle is 45 with the ground. Corner, a spray molding, can not make a second fill. Therefore, it requires careful operation and good spraying equipment. After every working day, it is necessary to clean the equipment and test the equipment before the work. The job width is one runway width at a time.
The more advanced equipment is the sprayer, which is powered by a small car that can walk. The rear side is equipped with multiple nozzles. The car has an air compression pump and a storage hopper. The nozzles have 4 - 5 or 5 -7 nozzles. Not so, air compressor about 0. 4m3, the equipment will be used electric.
What is the operation of web forming?
The surface layer molding of plastic sports venues is mainly to prevent slippage and increase friction, so as to improve the athletes' competitive level. In addition to the Jansthahl method and the extrusion spray method, there is also a method known as net pressing. .
The network pressure method is to pave the plastic on the scene, and it is completed at the last layer. It is a mesh woven fabric made of cotton and chemical fiber mixed and woven. The mesh is about l0mm x l0mm, and there are pores in it. When the initial setting, the net God level, gently placed on top of the plastic, each net is about 400cm x 160cm, until the end of the plastic final condensation, on one side, remove the net surface debris, ready for reuse. Before each placement, brush the release agent on both sides of the mesh. The number of meshes required for construction is related to the progress of the project, the progress of fast mesh is more, the progress is slower, and the amount of mesh is less.
This kind of construction method is applicable to the block construction method for track and field sites, and it is constructed according to the width of one runway. Therefore, the progress of the project is relatively slow, and due to the relationship between the price of the mesh and the cost of the project, the cost of the project is also relatively high. The number of turns per web is 5 ~ 6 times.
The united color as the kitchen cleaning supplies, is useful for cleaning kitchen items. Use the Scouring Pad with cleaning fluid can remove stubborn stains, used to clean and wash the dishes. It absolutely not damage the surface, durable, is the new generation of clean appliance. As kitchen cleaning supplies, It is very useful and have great effect. In addition to remove the stubborn stains, but also not damage the skin and kind to your hands.
Golden Silver Cleaning Sponge,Silver Cleaning Sponge,Kitchen Sponge Cleaner,Golden Sponge
FengRun Commodity Co.,Ltd. , https://www.sponges.nl