Selection skills of customized PP foam tape
Time:
2022-03-01 18:11
Source:
Customized PP foam tape mainly rebounds, that is to prevent the material on the die-cutting die from being embedded on the bottom plate of the die, and can quickly leave the die after cutting the material, so as not to bring the material up. Another function is to press The moment of cutting has a fixed effect on the material, especially when the stamping has a narrow spacing and a close distance between the blade and the blade, under the high-speed stamping of the die-cutting, the material cannot be quickly rebounded and cannot be completely reset, and the die-cut material is There will be white edges and creases. Customized PP foam tape also plays an extremely important role as an auxiliary material, and rebound rate, density and hardness are three important parameters of good quality pad knife foam. , all three are indispensable.
The rebound rate is one of the most important parameters of customized PP foam tape. The standard measurement of customized PP foam tape is measured by "falling ball rebound tester". Usually, the rebound of a die pad is measured. Customized PP foam tape is measured by Pinch your fingers down to see the rebound of the foam. The foam that has rebounded well, when the fingers are pinched and released, can quickly rebound in place, and the finger pinch marks will disappear.
In short, when choosing customized PP foam tape, the higher the resilience, the better the rebound effect of the die pad with the higher density of customized PP foam tape, the longer the punching life, and the different hardness and softness should be selected for different materials and molds The thickness is generally 0.5mm-1mm higher than the blade edge. In this way, the mold is more durable and the stamping effect is better.
Customized PP foam tape solves the problem of adhesive on the surface of sponge.
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