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What is the pouring process of Polyurethane solid forklift tire?

Publish Time: 2024-05-06
The pouring process of Polyurethane solid forklift tire is a complex and delicate process. The main steps are as follows:
Raw material preparation: The main raw materials of Polyurethane solid forklift tire include polyester polyol, isocyanate, chain extender, catalyst and filler. These raw materials need to be accurately metered and mixed according to the product's performance requirements and formula proportions.
Stir and mix: Put the raw materials mixed in proportion into the mixer and stir to ensure that the various raw materials are fully mixed evenly. This step is critical to subsequent tire performance and quality.
Mold preparation: Molds are key tools for tire building. Before pouring, the mold needs to be preheated and a release agent evenly applied inside the mold to facilitate demoulding after tire molding. At the same time, the wire rings in the skeleton material will be fixed by magnetic elements installed inside the mold to complete the internal positioning of the skeleton material.
Pouring: Pour the stirred polyurethane mixture into the preheated mold, fill the mold and maintain pressure and heat. This process requires strict control of pouring speed and temperature to ensure that the mixture is evenly distributed and fills every corner of the mold.
Curing molding: After the pouring is completed, the mold is placed in the curing chamber for curing. During the curing process, the polyurethane mixture undergoes a chemical reaction that gradually solidifies into a hard tire. Curing time and temperature need to be precisely controlled based on the specific requirements of the product.
Post-processing: After the tire is cured and formed, a series of post-processing processes are required, such as trimming, grinding, painting, etc. These steps are designed to improve the cosmetic quality and durability of your tires.
It should be noted that the pouring process of Polyurethane solid forklift tire has strict requirements on factors such as the proportion of raw materials, uniformity of stirring and mixing, mold temperature and pouring speed. Therefore, these parameters need to be strictly controlled during the production process to ensure the performance and quality of the final product. In addition, the pouring process also needs to take environmental factors into consideration to avoid environmental pollution.
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