Uneven spreading of asphalt spreading truck is a problem we often encounter when using asphalt spreading truck. For this reason, our company has specially published the causes and solutions of this problem as follows, so that car buyers can solve such problems in time when they encounter such problems, and relieve everyone’s troubles in using cars.
The main reasons for uneven spreading of asphalt spreading trucks:
1. Check whether the asphalt nozzle is loose or blocked;
2. The position of the asphalt nozzle is not uniform;
3. The speed is too fast or too slow;
4. The viscosity of asphalt is too high;
5. The height of the spray pipe from the ground is too high or too low.
Solution to uneven spreading of asphalt spreading trucks:
1. Clean all asphalt nozzles and check whether there are damaged nozzles and replace them in time;
2. Adjust all asphalt nozzles to a uniform position;
3. Reduce the speed of the vehicle to control the uniform spreading;
4. Make the height of the spray pipe from the ground adjustable and closed-loop control.
Since the spray fan angle will be affected by factors such as vehicle speed, asphalt type, temperature, viscosity, etc., the height from the ground is best determined based on construction experience and adjusted based on this: if the spray pipe is too high from the ground, the impact force of the asphalt spraying will be reduced and the “impact-splash-homogenization” effect will be weakened; if the spray pipe is too low from the ground, the overlap number of the asphalt spray fan will be reduced. The height of the spray pipe should be adjusted according to the actual situation to improve the asphalt spraying effect.
5. Improve asphalt properties
The higher the viscosity of asphalt, the greater the flow resistance of asphalt, the smaller the injection molding, and the smaller the overlap number. In order to overcome these shortcomings, the general practice is to increase the nozzle diameter, but this will inevitably reduce the jet velocity, weaken the “impact-splash-homogenization” effect, and make the lateral spreading uneven. In order to improve the performance of asphalt construction technology, the asphalt properties should be improved.
