The friend of the colleague asked me yesterday: why does the rubber product mix when the rubber material, the hardness can be erratic, sometimes high, sometimes low?I think it's worth explaining this problem for you.
If there's no problem with the formula, there are two reasons for this,
One, uneven sulfur;Second, the weight of the compound is not accurate, among which, the second is the main.
1. Uneven sulfur.The main result is that the local hardness is too large, or smaller, the hardness is erratic.
2, The dosage is not accurate.If the dosage is not accurate, it will lead to the mixing of some of the chemicals on the high or low side, beyond or not meet the requirements of the formula, resulting in formula failure, naturally leading to its hardness can not meet the requirements of the formula.Therefore, the dosage is very important, it directly affects the quality of rubber products, even, not only hardness changes.