During the rubber processing process, certain quality issues often arise, which hinder the smooth progress of production operations. Due to the high labor costs at present, there are significant losses during the period of work stoppage material shortage. If corresponding measures are taken for most of the problems that belong to the same type, these problems can be solved. The following is an introduction to the solutions based on the author's experience.
Petroleum additives
Function:
1. The sulfur is unevenly dispersed has pitting (agglutination) phenomenon
This is an old new problem, the problem that our predecessors should have solved is now being brought up again.
Placing the sulfur stored in the warehouse on a cement board is a good method a moisture-proof perspective. It is necessary to place it on a mat pad. Before measuring, sieving it is an effective method to prevent agglomeration. At this time, there is no need to use a too fine sieve, only 40 20 mesh can be used, as long as the agglomeration in the powdered sulfur can be broken. In addition, in cases the amount of sulfur added at one time is small, it is better to add it while passing the sieve on the opening mill. In this situation, even if the sieve mesh is thicker, it is still possible.
When using traditional methods, first set aside the sulfur in the plate, then add equal volume of lightweight calcium carbonate white powder, stir evenly, add it on the mixer. Although this is a simple method, there is no better method than this. Here is a brief introduction to what white powder is. Stack the oyster shells seashells on an outdoor cement board, let them be exposed to wind, sun, rain. After 2-3 years of storage, the organic matter inside is decomposed removed, becoming a snow-white substance with only calcium content. After crushing it, it becomes white powder. This powder can only be used for rubber, but also for other purposes.
In rubber mixed with a large amount of hard clay, it is unknown why the sulfur dispersion is uneven. Although people have come up with many methods, they still haven't worked. We will use a kneading machine to mix the mother of hard clay with sulfur other components, no sulfur particles were found. This is for reference only.