Zhendelong Machinery (Kunshan) Co., Ltd.

& Pressurized internal mixer
Small pressurized laboratory internal mixer // Where to buy it
Internal mixer
Suzhou Kunshan direct supply
Internal mixer model
: Pressurized internal mixer///////
Small pressurized laboratory internal mixer//
Drop type internal mixer (10,000 horsepower)//Oil Pressurized internal mixer////
Zhendelong Machinery (Kunshan) Co., Ltd. specializes in rubber and plastic mechanical internal mixers, open mixers, rubber cutting machines, slicers, slicers,
Cold film machines, etc., the company has always been adhering to the business philosophy of survival by quality and is engaged in the production of machines down-to-earth. The company is located in Huaqiao, Kunshan, close to Anting, Shanghai. New and old customers are welcome to visit the factory for guidance.
Contact: Wang Fei Tel
Internal mixer, also known as kneader, is mainly used for plasticizing and mixing of rubber. An internal mixer is a machine equipped with a pair of relatively rotating rotors of a specific shape, which can intermittently mold and knead polymer materials in a closed state with adjustable temperature and pressure. It is mainly composed of an internal mixing chamber, a rotor and a rotor. , rotor sealing device, feeding and pressing device, unloading device, transmission device and machine base. Features of the mill: The device is equipped with a fully automatic temperature and time control system. The operation is precise, simple and easy, and the mixing can be Achieving the best dispersion and uniformity effect
The experimental internal mixer is suitable for mixing, dispersing, plasticizing and forming experiments in various rubber products. It has the characteristics of light weight, small volume and structure. Simple. Easy to operate. Save electricity and energy. Easy to use and maintain.
Internal mixers generally consist of an internal mixing chamber, two relatively rotating rotors, an upper ejector bolt, a lower ejector bolt, a temperature measurement system, and a heating and cooling system. , exhaust system, safety device, discharge device and recording device. The surface of the rotor has spiral ridges, and the number of ridges is two, four, six, etc. The cross-sectional geometry of the rotor is triangular, cylindrical or elliptical, and there are two types: tangential type and meshing type. . The temperature measurement system is composed of thermocouples, which are mainly used to measure the temperature changes in the mixing chamber during the mixing process. The heating and cooling systems are mainly used to control the temperature of the rotor and the surface of the mixing chamber chamber wall.
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Working Principle
When the internal mixer is working, the two rotors rotate relative to each other, and the material from the feeding port is clamped and brought into the roller gap, where it is squeezed and sheared by the rotor. After passing through the roller gap, it hits the lower The top bolt sharp edge is divided into two parts, which are along the gap between the front and rear chamber walls and the rotor and then return to the top of the roller gap. During the flow around the rotor, the material is subjected to shear and friction everywhere, causing the temperature of the rubber to rise sharply and the viscosity to decrease, which increases the wettability of the rubber on the surface of the compound and makes the rubber and compound surface fully in contact. The compound clumps along with the rubber material pass through the gap between the rotor and the rotor, the gap between the rotor and the upper and lower top bolts, and the inner wall of the mixing chamber. They are sheared and broken, surrounded by the stretched and deformed rubber, and stabilized in the broken state. At the same time, the convex ribs on the rotor make the rubber material move along the axial direction of the rotor, which plays a stirring and mixing role, so that the compounding agent is evenly mixed in the rubber material. The compounding agent is sheared and broken repeatedly in this way, and the rubber material repeatedly deforms and recovers from deformation. The continuous stirring of the ridges of the rotor makes the compounding agent evenly dispersed in the rubber material and reaches a certain degree of dispersion. Since the shearing effect on the rubber material during mixing in the internal mixer is much greater than that of the open mixer, and the rubber mixing temperature is high, the rubber mixing efficiency of the internal mixer is much higher than that of the open mixer.