Overview
RDS 9 #L2000φ 10 wire-wound Applicator rod is a wire-wound Spreader Metering rod produced by RDS Company in the United States. RDS has more than 80 years of experience in R & D and production of coating rods, and its products are widely used in the Chinese market. This model adopts the winding process, which is suitable for a variety of substrates, and can realize accurate and uniform film. It has the characteristics of rapid change of coating weight and wide film thickness.
Features
The brand has a long history, dating back to 1936, and its technology is mature and reliable.
2. Adopt the classic "Mayer" wire winding rod design, which is widely used.
3. The wet film thickness is 22.9μm, and the Spreader is uniform.
4. The diameter of the steel wire is fine (φ 0.23mm), and the diameter of the main rod is moderate (φ 10mm).
5. Total length 2000mm, effective application width of 1900mm, suitable for wide Spreader.
6. The mandrel is made of stainless steel 303, with chrome plating on the surface, taking into account strength and corrosion resistance.
7. Wire winding rods can be disbonded and rewound, helping to save costs and reduce waste.
8. Can be customized according to specific needs.
Principle
The Working Principle of the RDS Wire Winding Applicator rod is based on the classic "Mayer rod coating method". When the coating flows through the precision wire wound on the mandrel, the gap (cavity) between the wires determines the wet film thickness transferred to the substrate. Measurement and formation of a uniform coating can be made precisely by controlling the diameter of the wire (i.e. rod number, e.g. 9 #corresponds to φ 0.23mm) and the winding spacing. The Spreader process is simple, and the coating effect can be further controlled by adjusting the Spreader pressure or substrate tension.
Applications
Coating, window film, adhesive tape, release paper, photovoltaic film, wall covering material, special paper
Standards
No specific compliance criteria were mentioned in the data.
Steps
1. According to the Spreader process requirements, select the appropriate RDS Metering rod model (such as wire winding rod, molding rod, etc.).
2. Install the Metering rod correctly on the Spreader device to ensure that the two ends are firmly clamped.
3. Adjust the pressure of the coating rod relative to the support roller or adjust the tension of the web to control the Coating thickness.
4. Start the Spreader device, so that the Coating flows evenly through the Metering rod and Spreader on the surface of the substrate.
5. After the Spreader is completed, clean the Metering rod in time to prevent Coating from clogging the wire gap.
Notice
* After long-term use, the wire gap may become blocked, and regular cleaning is required to maintain the uniformity of the Spreader.
* When operating, choose the appropriate Metering rod type according to the viscosity of the Coating (such as notched rods or double-wound rods can be considered for high viscosity Coating).
* When installing, make sure that the Metering rod is parallel to the substrate or support roller to avoid uneven Coating thickness.
The chrome plating on the surface can prolong the life of the rod body, but it is still necessary to avoid scratching with hard objects to maintain the surface finish.
For specific application requirements, it is recommended to submit custom requirements through professional channels (such as the NBchao Metering rod customization tool) to obtain targeted solutions.
