In the production of rubber products, various problems are often encountered. Among them, the problem of product burrs is very common and is also one of the difficult issues to handle. Now, let's take a look at how Yongyong silicone rubber factory workshop veteran analyzes with us the major factors that affect the product burrs.
First, let's talk about the molds. These molds are called "industrial mothers". The quality of the molds directly determines the quality of the products. Excessive burrs on rubber products usually occur on the mold parting lines, which are also the joining lines. If the mold matching is not done properly and the gap is too large, during production, the burrs on the products will become thicker or larger. Additionally, since the burrs are separated from the products by the self-cutting grooves of the molds, the design of these self-cutting grooves is also one of the key factors affecting the burrs on the products. Otherwise, after the burrs separate from the products, they will take on a sawtooth shape.
The second point is that proper setting of forming parameters can also affect the burrs on the product. Depending on the different rubber materials, an appropriate forming temperature should be set. Generally, it is set between 165 and 185 degrees Celsius. In special cases, there will be little difference. In addition, a reasonable clamping pressure should be set according to the size of the mold.
Secondly, for some rubber products, the burrs cannot be removed immediately after molding. They need to be removed only after the product has fully cooled down. However, there are also cases where the burrs need to be removed while the product is still hot. In such cases, it should be determined based on the specific circumstances and guided by the results.
