Grinding Electronic Slurry in a Hydraulic Three Roll Mill

Hydraulic Three Roll Mill

The hydraulic three roll mill is a versatile machine specifically designed for grinding and dispersing electronic slurry. It consists of three horizontally positioned rollers, each rotating at different speeds.

Details of Three Roll Mill

  • Two types: handwheel and digital control gap
  • Safe scraper socket, Emergency-stop
  • Space-saving desktop models
  • Drip tray for easy cleaning

Application: Paint, Adhesive, Battery, Pharmaceutical industry, Cosmetic

Grinding electronic slurry is a critical step in the production of electronic components. This process involves reducing the particle size of the slurry to achieve a homogenous and finely dispersed mixture, essential for the development of high-quality electronic materials. In recent years, the hydraulic three roll mill has emerged as a dominant equipment in this field, offering exceptional efficiency and precise control over the grinding process.

Electronic Slurry: Composition and Importance

Electronic slurry, also known as electronic ink or conductive ink, primarily comprises electrically conductive particles, solvents, binders, and additives. The composition plays a crucial role in determining the performance of electronic devices such as printed circuit boards (PCBs), displays, and sensors. To achieve optimal conductivity and stability, the slurry must possess a uniform particle size distribution and a well-dispersed particle arrangement.

Hydraulic Three Roll Mill: Features and Advantages

a) Hydraulic pressure control system: The hydraulic system exerts precise pressure on the grinding rollers to ensure consistent particle size reduction.
b) Enhanced cooling capability: The three roll mill incorporates efficient cooling mechanisms for temperature control during grinding, preventing any detrimental effects on slurry viscosity or conductivity.
c) Adjustable gap size: The machine allows for adjusting the gap between the rollers, enabling precise control over the final particle size distribution.
d) Automated operation: Hydraulic three roll mills are equipped with advanced automation systems that facilitate easy operation, precise parameter control, and integration with other machines for continuous production lines.

hydraulic three roll mill

Grinding Process in Hydraulic Three Roll Mill

The grinding process in a hydraulic three roll mill involves three major stages: feed preparation, grinding, and particle size analysis.

a) Feed preparation:
Firstly, the slurry is prepared by mixing the conductive particles, solvents, binders, and additives in appropriate proportions. This mixture, generally pre-mixed using a dispersing machine, should exhibit a consistent and stable composition before being transferred to the three roll mill.

b) Grinding:
Once the pre-mixed slurry is introduced into the hydraulic three roll mill, the high-pressure hydraulic system adjusts the gap between the rollers, ensuring an optimal level of grinding intensity. As the slurry passes through the narrow gap between the rollers, it experiences high shear forces and compressive stress, effectively breaking down the agglomerates and reducing particle size.

c) Particle Size Analysis:
To ensure the grinding process achieves the desired outcome, regular particle size analysis of the slurry is essential. This analysis enables operators to monitor the distribution, uniformity, and quality of the electronic slurry, allowing for adjustments if necessary.

hydraulic three roll mill

Simultaneously, the cooling system prevents excessive temperature rise during grinding, thereby maintaining the desired slurry viscosity and conductivity. The adjustable gap size further allows for precise control over the final particle size distribution, tailoring it as per the application requirements.

Applications of Electronic Slurry Grinding

The hydraulic three roll mill is widely used in various applications requiring finely ground electronic slurry, including but not limited to:

· Production of conductive inks for printed electronics.
· Manufacturing of specialty coatings for electronic components.
· Formulation of adhesives and sealants in electronic assemblies.
· Development of high-performance electronic materials for displays, sensors, and energy storage devices.

The grinding of electronic slurry in a hydraulic three roll mill offers a high level of efficiency, precision, and control over the grinding process. By reducing particle size, creating uniform dispersion, and maintaining optimum slurry composition, this innovative technology supports the production of high-quality electronic components. Whether in the production of conductive inks, coating formulations, or adhesives, the hydraulic three roll mill proves to be an indispensable tool for the electronics industry, enabling advancements in various emerging technologies.

FRANLI manufactures all types of three roll mills and designs the best solutions for different materials. As a three roll mill manufacturer with 20 years of experience, FRANLI has a team of experts in the design of a complete line and provides permanent pre-and post-sales service.

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Guidelines For Three Roll Mill

Three roll mills are widely used in a variety of chemical industries, from medium to high viscosity productions. FRANLI machine can break open all kinds of pigment, UV ink, offset ink, decorative paints, and Lubricants, it also can catch the greatest fineness in cosmetics/ lipstick and electronics industries. 

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