Bubble formation in the coating of a monorail lift's driving wheel is a common issue that can significantly affect product quality. This problem typically arises due to several factors, including poor adhesive mixing, incorrect vulcanization procedures, and suboptimal settings on the mixing machinery. To prevent such issues, strict adherence to production protocols is essential, ensuring that all stages, from selecting raw materials to operating equipment, comply with established guidelines.
One primary cause of these bubbles is excessive stirring force, which can introduce unwanted air pockets. When using a two-part curing agent, it’s important not to let the mixture sit for too long, especially in higher temperatures, as this can hinder proper curing. Additionally, moisture on the surface being painted can lead to bubbling when it comes into contact with polyurethane paint. Other contributing factors include insufficient drying time, inadequate application pressure, and even moisture left on brushes.
To address these challenges effectively, there are several steps that can be taken. Begin by carefully combining components—pour the liquid first, then gradually add the powder while thoroughly blending for about 3-5 minutes until achieving a smooth consistency. When applying the coating, use even pressure and ensure no areas are missed; typically, two coats are applied, each not exceeding 1mm in thickness. Allow sufficient drying time between layers, ensuring they’re not tacky to the touch before proceeding. After the final coat, perform a cross-brushing technique to achieve a total thickness of around 1-2mm. For subsequent layers on already-cured coatings, lightly moisten them with clean water beforehand.
Post-application care is equally critical. Cover the coated area with a damp cloth or periodically mist it with water within the first 24 hours of installation. Until fully dried, protect the surface from foot traffic, rain, direct sunlight, and any potential physical damage. Finally, conduct a water retention test after 48 hours to confirm the integrity of the waterproofing layer—longer periods may be necessary depending on seasonal conditions.
By following these practices diligently, you can minimize bubble formation and enhance the overall durability and performance of your monorail lift's driving wheel coating. Remember, high-quality polyurethane products rarely exhibit such defects, whereas lower-grade materials tend to suffer more frequently from this issue. Addressing these concerns promptly ensures optimal functionality and longevity of your equipment.
Replacement Uv Lamp,,Uvc Disinfection Lamp ,Amalgam Uv Light ,Germicidal Uvc Lamp
Guangdong Kingrate Optoelectronic Technology Co., Ltd. , https://www.kingrateuv.com