How do you evaluate rubber mixing mills?

Before evaluating a rubber mixing mill, we first need to have a comprehensive and correct understanding of rubber mixing mills. Let's learn more about rubber mixing mills together.

Here is the content list:

• What are the causes of "self-sulfur" during the placement of the compounding compound?

• How to reduce the rubber compounding rubber door?

• What are the methods of rubber mixing machines for pounding rubber?

What are the causes of "self-sulfur" during the placement of the compounding compound?

(1) Too many vulcanizing agents and accelerators are used.

(2) Large capacity of the rubber mixing machine, high temperature of the rubber kneader machine, insufficient cooling of the film.

(3) Or add sulfur too early, uneven dispersion of the chemical material causes the local concentration of accelerator and sulfur.

(4) Improper parking of the rubber mixing machine, i.e. the temperature of the parking place is too high, the air is not circulating, etc.

How to reduce the rubber compounding rubber door?

Rubber compounding rubber door is M (1 + 4), that is, the size of the torque at 100 degrees preheating for 1 minute, the rotor turns for 4 minutes, that is, the size of the force that prevents the rotor from turning. Any force that can reduce the rotor rotation can reduce the door, the raw materials of the formula include the original rubber: natural rubber and synthetic rubber, choose natural rubber with low door or add chemical plasticizer to the natural rubber formula (physical plasticizer effect is not good) is a good choice, synthetic rubber generally do not add plasticizer, usually can add some lower molecular weight lipid so-called dispersant or internal release agent, such as the hardness requirements are not strict, of course, you can also increase the amount of stearic acid or oil; if in the process, you can increase the pressure of the top bolt or appropriately increase the temperature of the rubber discharge, if the conditions allow reducing the temperature of the cooling water can also reduce the rubber mixing rubber Menny.

What are the methods of rubber mixing machines for pounding rubber?

1. Triangular package method: this method is to cut the film on the rubber mixing machine rollers horizontally, then fold up the film left and right alternately to the center, and beat it into a triangular package on the front rollers, then push the package into the roll spacing, and so on several times for mixing. This method can obtain a good dispersion effect. To solve the problem of heat dissipation, you can hit a triangle package to the left, center, and right respectively after dropping the plate once for cooling, and so on repeatedly. 

2. Eight knives method: this method is to mix the rubber material in the rubber mixing machine rollers left and right cross-rolling to make it uniform. When operating, one hand holds the knife to cut the rubber at an oblique angle of 75° or 105° with the horizontal line of the roller, and the other hand holds the rubber roll to make it at an oblique angle of 15° or 165° with the horizontal line of the roller with the rotation of the roller. So repeatedly cross the roll, left and right pounding rubber, for 8 times.

3. Twist operation method: this method is to cut the rubber from left to right or from right to left gradually, so that the rubber is attached to the front roller, with the roller rotation to form a fan, to the head so that the rubber is automatically brought into the roller seam with the roller, so repeatedly pounding, so that the rubber is mixed evenly. 

I believe that you have a certain understanding of the rubber mixing mill, so now you can go to choose a suitable rubber mixing mill. If you are in the rubber mixing mill business, you can consider Qingdao Huicai Machine Manufacture Co., Ltd.'s cost-effective products.