Maintaining the working efficiency of the melt blown machine and reducing the resistance of the melt blown cloth as much as possible has become a new issue that the melt blown cloth factory needs to overcome. For example, for a 25-gram meltblown cloth, the single-layer resistance is controlled below 60pa at a flow rate of 85L/min, the double-layer resistance is controlled below 120pa, and at a flow rate of 95L/min, the single-layer resistance is controlled at 60-70pa, and the double-layer resistance is controlled at Less than 150pa is ideal.
How to achieve a balance between maintaining efficiency and reducing resistance is a Severe test of the level of the adjuster The following is a 12-stroke experience shared by a real-time tuning master, which can be referred by nonwoven factory owners appropriately.
1. Reduce the speed of the main engine and reduce the volume of the metering pump.
How to control the reduction of measurement requires you to carefully record and patiently debug. Assuming that your meltblown machine is 1600 mm wide, it is generally cut into 9 rolls and 175 mm wide as an example. Some customers are not 175 calculations and so on.
For example, for a meltblown cloth with a weight of 25 (g/m2), you should basically keep the weight of your sample (a round cloth with a diameter of 100 square centimeters ≈ 11.3 cm, as shown above) at 0.25 to 0.28 grams. Assuming that the melt blown cloth we are going to do now is between 0.25 and 0.28, use the weight meter to test the multiplicity of a single piece. Record the data, and mark each volume as 1~9. At this time, the total amount of 1~9 is obtained on the weight meter to get a total data.
For example, suppose we have 1 roll 0.27, 2 rolls 0.28, 3 rolls 0.27, 4 rolls 0.29, 5 rolls 0.26, 6 rolls 0.26, 7 rolls 0.28, 8 rolls 0.25, 9 rolls 0.25, at this time all the original films are funk The weight calculated by the weight meter is divided by 9, and we calculate an average value of 0.268. Assuming your weight /9, the calculated average is between 0.25 and 0.28, which proves that your measured weight is correct. We will adjust the weight of each roll of yours later. According to the fourth volume above, 0.29 exceeds the weight. Adjust each volume separately here, remember this sentence: if the weight is small, the temperature will rise, and the weight will be cooled down.
2. The completion of the above steps is to control your amount. The weight of each roll is different, and the value of the test is also
