Usually solid state hydraulic process silicone products manufacturers in the hardness range of controllable between 20-80 degrees, in general, the hardness of the tolerance range of ± 5 degrees, so the general silicone material within the ± tolerance of the basic product will not be Late use of the impact, but some hardware and plastic coated nylon bag material hardness tolerance may require some deviation, you need to control the use of products within ± 2 performance and the effect will be better, so you have to look at the raw materials Deployment is enough careful!
Silicone products with different hardness will come with what aspects of the impact.
1, changes in the extrusion strength, low hardness products will gradually reduce the intensity, high hardness will increase 5-10 degrees difference will have different extrusion changes.
2, changes in tear resistance, the higher the hardness of the product will be the weaker the tear resistance, in particular, has a right angle of the product is prone to tearing, low hardness, good tear, tear different degrees of hardness.
3, Tensile stress lead to deformation, Tensile stress is an important control of silicone material, precisely with the hardness of a certain degree of correlation, different hardness and curing temperature and pressure in the process of vulcanization vulcanization pull the deformation of the situation is important Relationship.
4, wear and fatigue changes, different hardness of products in wear and fatigue have different effects, the general silicone material with the hardness increased hardness increases hardness, long-term run-in will affect the decline in fatigue is not enough wear-resistant phenomenon.
5, different elasticity, flexibility is one of the important elements in the silicone material, so different hardness of the material for each different application products have an impact, and ± hardness difference can lead to the use of the entire product effect, or even Affect every aspect of a whole!
Therefore, many customers in the procurement of silicone products failed to correctly indicate the use of hardness, the hardness of the material requirements and no requirements, but the hardness of silicone rubber products may affect your choice of the entire product, or do not understand the friend can Understand the hardness of silicone material after the decision to determine the hardness!
