What is the difference between an open mixer and a Banbury? And its advantages and disadvantages?
After the mixer, it shows a series of advantages in the mixing process than the open mixer. The mixing process is easier to operate, better to overcome the dust flying, reduce the loss of the compounding agent, improve the working conditions and reduce the labor intensity.
The mixing time is long, the mixing force is large, so the mixing effect is better than that of the open mixing machine.
The open mixer is a continuous processing mode, while the Banbury is an intermittent, forced processing mode.
The rotor in the Banbury is easy to overheat, which leads to the decomposition of the material, so it is necessary to pass an appropriate amount of cooling water into the rotor.
The open mixer can make the material into thin sheets, which is easy to process.
The banbury can process a small amount of rubber raw materials, and when the amount is needed, it will choose the open mixer for processing.
2.What should I pay attention to when mixing materials with the banbury?
The material must be filled, otherwise the pressure is not enough to achieve the expected mixing effect, and it cannot be overfilled, otherwise it is difficult to compact the material under the pressure applied.
The speed of the rotor is in a suitable state, too small, can not achieve the effect of full mixing, and it is easy to cause the material to be heated unevenly, and the local overheating decomposition; The rotor in the mixer is easy to overheat, which can easily lead to the decomposition of the material, so it is necessary to introduce an appropriate amount of cooling water into the rotor.
When used for rubber mixing, the mixing temperature should be lower than the vulcanization crosslinking temperature to avoid the early vulcanization of the rubber in the internal mixer. The machine has a high force and should be protected from scalding and crushing.
3.Precautions for using open mixer?
The gap between the two rollers of the open mixer should be consistent, parallel before and after, to prevent collision and friction in the rotation process, reasonable control of the size of the distance between the two rollers, too large material mixing uneven, and too small may lead to material decomposition due to excessive shear force, the machine begins to work strictly prohibit people standing next to prevent hair and limbs involved in the roller.
4.Why is rubber yellow-brown after mixing?
Because the banbury is often used for the processing and mixing of rubber, in order to make the rubber reach a certain strength, carbon black is often added to achieve the reinforcing effect, and a small amount of carbon black and the residue of the last experiment are often left in the internal mixer, resulting in the white material becoming a yellow-brown material after the secret refining of the internal mixer.
