E-mail: cysi@cysi.wang
The Battery material extrusion coater CY- RC-200 uses a technique to evenly apply battery materials (such as slurries for the positive and negative electrodes) onto the electrodes
The Battery material extrusion coater CY- RC-200 uses a technique to evenly apply battery materials (such as slurries for the positive and negative electrodes) onto the electrodes. This equipment is commonly used for the slurry coating of the positive and negative electrodes of lithium batteries, capable of continuous coating, intermittent coating, continuous strip coating, and intermittent strip coating.
The working principle of the Battery material extrusion coater is to turn battery materials into a slurry state and then use the coating head to evenly spread the slurry onto the electrodes. After coating, the electrodes need to be dried to evaporate the solvent in the coating layer, making the electrode surface dry. After drying, the coating layer needs to be cured to become solid and durable.
High Precision Coating: The can achieve high-precision coating. The coating thickness is related to the gap between the coating head and the base belt, the viscosity of the fluid, the speed of the base material, the size of the coating head lip, and the fluid and external pressure.
Strong Adaptability: It can adapt to different types of coatings and substrates, with strong process adaptability, suitable for various industries such as textiles, printing, electronics, and medical fields.
High Level of Automation: With the development of automation technology, the squeegee coater has gradually achieved a high level of automation. Through the automatic control system, the precise control and monitoring of the coating process can be realized, reducing the need for manual intervention and improving the stability of the production line.
Energy Saving and Efficiency: Some modern squeegee coaters are equipped with infrared auxiliary heating systems, which can increase the coating speed by 30%, enhance the drying effect, and reduce energy consumption by 20%.
Double-Sided Coating: Some high-speed double-sided squeegee coating systems can achieve double-sided coating and drying of the substrate at the same time, solving the problems of poor drying uniformity, high energy consumption, and large space occupation of traditional coaters.
Low Investment Cost: Double-sided coating and drying reduce the unit structure, thereby reducing investment costs.
Stable Equipment: The double guide rail for winding and unrolling, combined with the direct drive roller structure, ensures that the system tension fluctuation is ≤±2N, ensuring stable equipment operation.
The squeegee coater performs excellently in modern industrial applications, especially in areas that require high efficiency and high coating quality. However, the appropriate coater should be selected based on specific production needs and process requirements for a comprehensive assessment.
If you are interested in our Lab Squeegee coater, please contact us for more information and a quote.
Phone: 183-3926-3857
Email: jack@cysitech.com
Contact Person: Jack Yang
WeChat: 183 3926 3857
Power source | Voltage single-phase AC220V±10%(customized 110VAC), frequency 50Hz/60Hz, power 4KW |
Coating type | Continuous coating, stripe coating (optional gasket) |
Coating roll | Roll diameter Φ200mm |
Guide roll width | 230mm |
Roll substrate | Inner Diameter： 3 inches core OD Diameter：Max.Ф150mm Width：≤200mm |
Sheet substrate | Length：≤600mm Width：≤200mm |
Substrate thickness | 6-30μm（typical） |
Mechanical velocity | Max.0.5m/min |
Coating thickness | Single side thickness: ≤5μm (reference graphite carbon paste, viscosity ≤500cp, solid content ≤5%) Accuracy: ≤±1μm(excluding edge abnormal area) |
Feed capacity | Feeding cylinder capacity: 10ml/20ml/30ml |
Feed rate | 0.01-10mm/s（piston rod speed） |
Die adjustment | Display accuracy 1μm |
Drying cabinet | Max.120℃，PTC heating power |
Tension control | Max.20N |
Rewinding and unwinding diameter | Max.Ф150mm |
Retract the core | 3 inches |
corona | Power 2KW, ceramic electrode 1, effective width 200mm |
Equipment size | L800mm*W700mm*H1300mm |
weight | About 300Kg |
Major parts：
Component Name | Component Description |
Device host | Coating machine host |
Test materials | Usually electrodes, OLEDs, paste specific materials, etc |
Random accessories | Coating machine head, storage tank, tube, power cord, etc |
User Manual | Standard configuration |
Application Areas：
Extrusion coater is widely used in many industries, the following are some of the main application areas:
1. Lithium battery manufacturing: Extrusion coating machine is used in the coating process of positive and negative electrode sheets in lithium battery manufacturing, and is one of the production equipment of lithium-ion battery core. It can evenly coat the slurry with specific functions on the electrode of the lithium battery, and plays a key role in the yield, safety, multiplier and capacity of the lithium battery products.
2. Printing and packaging industry: In the printing industry, the coating machine is used for the surface coating process production of paper, film and other materials. The rolled substrate is coated with a layer of glue, paint or ink with specific functions, and is cut into pieces or rolled after drying.
3. Textile industry: The coating machine is used in the textile industry to evenly coat coatings or chemicals to a variety of fabrics, felt, yarns and other materials to enhance its waterproof, anti-fouling, anti-static and other properties.
4. Building materials industry: In the building materials industry, the coating machine is mainly used for coating materials such as coatings, waterproof coatings, preservatives, asphalt and other materials on stone, wood, aluminum alloy, steel, glass and other substrates to improve its waterproof, anti-corrosion and decorative performance.
5. Automotive industry: The coating machine is used in the automotive industry for automotive appearance painting and sheet metal processing to help the car produce a better appearance effect and make the car durable.
6. Home appliance industry: In the home appliance industry, the coating machine is used for coating paint, glue or waterproofing agent, such as the coating of household items such as sinks, bathtubs, bathroom appliances, and the production of home appliances such as refrigerators and washing machines.
7. Electronics and new energy industry: The application field of coating machine has been extended to the use of UV(ultraviolet light), EB(electronic beam) curing coating technology of optical coating, widely used in flexible printed circuit boards, semiconductors, liquid crystal display, touch screen, solar cells and other new energy manufacturing, smart display, environmental protection and other high-tech fields.
8. Optical film: The extrusion coater is also suitable for the coating process of optical film, which can be used to produce high-end tape and various functional films.
9.FCCL (Flexible coppered sheet) : In the production of FCCL, the coater is used to coat a specific paste to make a flexible circuit board.
Application Case: Extrusion coating machine for coating optical thin film materials
The experimental steps and processes when using an extrusion coater to coat optical thin film materials usually include the following key links:
Substrate preparation: Firstly, it is necessary to prepare a suitable substrate, such as PET film, etc., and ensure that its surface is clean and dust-free to guarantee the adhesion and uniformity of the coating.
Coating formulation: Select an appropriate coating formulation according to the required optical properties. For example, polyurethane resin can be used with the addition of organic or inorganic particles as diffusion particles to prepare a diffusion film.
Surface treatment: In order to improve the bonding performance between the coating and the substrate, it may be necessary to pretreat the surface of the substrate, such as chemical oxidation treatment, photochemical treatment, plasma treatment, corona discharge treatment or primer treatment.
Coater setup: Adjust the parameters of the coater, including the coating gap, coating speed, pressure, etc., to adapt to the specific coating material and substrate type. For a high-speed double-sided simultaneous extrusion coating system, the slit extrusion coating principle and the contact kiss coating principle can be set to achieve a high-precision coating effect.
Coating process: The coating material is evenly coated on the substrate through the coating head. The flow rate and pressure of the coating material need to be precisely controlled to ensure the uniformity and thickness of the coating.
Drying and curing: The coated substrate needs to be dried in an oven to evaporate the solvents in the coating, and then undergo a curing process to form a firm coating.
Performance testing: Conduct performance tests on the coated film, including adhesion, abrasion resistance, transparency, hardness, etc., to ensure that the coating meets specific application requirements.
Quality control: During the entire coating process, it is necessary to monitor the coating quality in real time to ensure the uniformity and consistency of the coating.
Post-treatment: Depending on the requirements, it may also be necessary to conduct post-treatment on the coating, such as UV curing, heat treatment, etc., to further improve the performance of the coating.
Rewinding: Finally, the coated film is rewound in preparation for subsequent processing or application.
The above steps are a basic process, and adjustments may be made according to specific materials and equipment in actual operation.
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