After signing the equipment contract and before delivery, our sales internal service will reconfirm the working condition and personnel preparation of the customer's site with the customer. Some customers can't understand our strict requirements for the working condition. In fact, we strictly require the working condition of the site based on the starting point of stable production, high yield and low operating cost for the customer. Here are several important conditions of the site conditions:
1. Temperature control: the best temperature in the cabinet coating industry is 18-23 degrees. In this temperature range, the foaming time and the quality of the strip after the mixing of a and B adhesives are in the best state. If the temperature is too low, the foaming time may be long, the foaming ratio is low, and the strip is hard, and the orange peel may appear on the surface after foaming; otherwise, if the temperature is too high, the foaming time may be shortened, the foaming ratio is high, and the strip is soft, and the surface may be uneven after foaming or even the bubble hole may appear;
2. About agitator of glue a: polyurethane glue a is a multi-component formula product. In the imported glue formula, in order to ensure the width height ratio of the strip and the quality of the strip, the formula contains powdered solids such as thixotropic agent. The glue just produced belongs to the state of solid-liquid mixing and even phase distribution. However, if the glue is placed for a long time without mixing, solid settlement and glue stratification may occur Phenomenon, directly affect the stability of the quality of rubber strip.
3. About the freeze dryer: some raw materials in polyurethane B glue are very sensitive to the moisture in the air. When the air source that has not been separated by the freeze dryer enters the B glue circulation system, the moisture in the air is easy to crystallize with B glue, forming crystal particles to block the pipes, valves and pumps, causing inaccurate measurement, directly affecting the quality of the strip, and also causing equipment failure, increasing Maintenance cost of equipment.