Yongte WPC Decking Extrusion Machine Successfully tested and inspected before delivery
The successful trial run of the Yongte WPC decking extrusion machine not only marked a crucial milestone from installation to operation, but also provided valuable experience in technical practice, problem-solving, and teamwork.
The initial launch of the equipment was not without its challenges. We encountered two typical issues, for which we identified solutions through technical analysis:
1, Initial product thickness deviation: 30 minutes after startup, testing revealed a ±0.3mm fluctuation in the flooring thickness (designed for 5mm) and slight warping at the edges. We determined the causes to be a mismatch between the pull-out speed and the extrusion speed combined with a partial blockage in the mold cooling water line. When the extrusion speed was slightly faster than the pull-out speed, material accumulated in the mold, resulting in an excessively thick surface. The blockage in the cooling water line caused localized overheating in the mold, leading to uneven cooling at the edges and causing warping. The solution was to fine-tune the pulling speed from 0.8m/min to 0.85m/min. The cooling water lines were also disassembled and scale removed (due to residual impurities in the pipes not previously cleaned). After these adjustments, the thickness deviation was controlled within ±0.1mm, completely resolving the warping issue.
2, Material extrusion stability issue: After one hour of operation, the extruder's ammeter showed frequent fluctuations (jumping from 80A to 100A), accompanied by unusual screw noises. We immediately stopped the machine for inspection and discovered that uneven feeding was caused by "material bridging" at the feed inlet (wood plastic pellets clumping due to static electricity). Subsequently, by installing a vibration device (50Hz frequency) at the feed inlet and adding 0.2% antistatic agent to the material, the bridging issue was completely resolved, and the screw current stabilized at 85±2A.
The core value of a machine test is not only to verify equipment operability, but also to find the optimal fit between the equipment and the material through a process of "problem identification - technical analysis - dynamic optimization." The successful trial run of the Yongte WPC decking extrusion machine is the result of teamwork and a growth in technical practice. Going forward, I will apply this experience to subsequent equipment operation and maintenance, ensuring mass production, and continue to learn new equipment technologies (such as intelligent temperature control systems and energy-saving retrofit solutions) to leverage my expertise to improve both production efficiency and product quality.
