Medium sized floor standing pilot machine

Brand: DATAMAKER Model: DT-3030

1. Introduction to Processes and Applications

1. The coating system mainly consists of a feeding unit and a coating unit. The coating unit consists of upper and lower molds made by precision machining and thin gaskets installed between the upper and lower molds. The feeding unit consists of an injection pump for storage, conveying, and filtration devices. The system uses a coating mold that moves precisely relative to the substrate, controlling speed, precise metering, and pumping process fluids to extrude liquid chemical materials from the gaps between the upper and lower molds and coat them onto moving substrates (glass, stainless steel, plastic, etc.) to form a film. The thickness of the coating film can be directly calculated from the liquid flow rate and substrate movement speed. Its advantages include high uniformity of the coating, a wide range of applicable coating viscosities, fast coating speed, and the ability to produce large-area coatings.

2. Suitable for coating substrates such as organic solar cells (OPV) and perovskite solar cells (PVK), as well as coating non-continuous substrates like LCD glass substrates for photoresist, and also applied to optical films (brightening films, hardcoats, polarizers, diffusion films, etc.) and OLED coatings.

3. Multiple specifications and sizes available for customization, with a variety of user-friendly configurations available: heating station, special gas spray system, multi-size blade heads, multiple gasket specifications, etc., meeting diverse customer needs and customizing high-precision professional equipment for customers.

2. Design Scheme

2.1 Overall Machine Design Scheme

(Actual view of the slit coating machine)

2.1.1 The equipment adopts a two-stage adjustment system to ensure the large-area platform leveling. The coating platform has a separate leveling mechanism, and whether the platform is flat serves as the first step to the process threshold, acting as the foundation.

2.1.2 The bottom of the entire coating platform uses a high-precision marble platform, which is less affected by thermal expansion and contraction, resulting in high horizontal stability.

2.1.3 If equipped with in-situ heating functionality, the sample stage of the coating system will use high-precision stainless steel design. If in-situ heating is not available, the sample stage for the coating system uses a high-precision marble platform, with sample positioning and fine horizontal adjustment functions to ensure flatness.

2.1.4 The coating blade head uses specially precipitated hardened stainless steel, imported large-size blade heads with special surface heat treatment (proprietary patented design technology), resistant to organic solvents and deformation.

2.1.5 The blade head is equipped with a built-in 316 stainless steel gasket, which adjusts the gap between the upper and lower lips to determine the liquid output.

2.1.6 The Z-axis uses a servo motor combined with encoders and a grating ruler for dual closed-loop control, ensuring the position accuracy and levelness of the cutter head.

2.1.7 Integrated injection pump can control solution flow rate, automatic liquid intake, automatic degassing, and automatic pipeline cleaning (requires cleaning solution; blade head must be removed for cleaning).

2.1.8 The coating platform operating mechanism uses linear servo motors to improve platform stability, minimizing influencing factors in the process.

2.1.9 Waste liquid recovery system, which can be used in conjunction with pipeline cleaning for waste liquid recovery, facilitating waste liquid treatment.

2.1.10 The coating platform is equipped with multi-zone vacuum adsorption and substrate positioning functions, facilitating substrate positioning and fixing during the coating process.

2.1.11 Multi-stage coating process to better control the thickness of the substrate at the head and tail.

2.1.12 Compressed air enters the high-pressure chamber of the air knife, and airflow exits through gaps along the length of the air knife, forming a thin, high-strength air curtain.

2.2 Software Features

2.2.1 System parameter visualization, directly displaying platform position, blade height, slit thickness, coating speed, injection speed, and injection volume, combined with formula storage functions to achieve excellent process repeatability.

2.2.2 Can be equipped with customized coating process controls, such as heating station temperature control and special gas spray switches.

2.2.3 Equipped with formula storage function, capable of storing more than 8 sets of mature process parameters, achieving good process repeatability.

2.2.4 Equipped with automatic safety protection functions, it uses feedback from multiple sensors to automatically identify hazardous zones, ensuring safe coating molds without tool collision during operation.

3. Process Indicators