Optimization of the two-component insert filling process to achieve both mixing accuracy and application quality

To ensure the strength and weight reduction of aircraft structural components, an insert process was required to fill hollow panels such as honeycomb panels with two-component adhesive. However, the conventional process had the following challenges:

• Inconsistent mixing ratio and unstable application amount
  The quantitative accuracy was low, and errors were likely to occur in the mixing ratio of the base resin and hardener, which posed a risk of causing poor hardening or poor performance.
• Dripping and rework
  Resin drips from the nozzle during application, leaving excess material inside the equipment and on the product, increasing the burden of rework and cleaning and reducing productivity.
• Unstable quality due to variations in filling conditions
  Air bubbles had gotten inside the product, causing localized incomplete filling and poor curing, and posing a risk to quality assurance.

By introducing our eco-DUO series, we have achieved the following benefits:

• Stable mixing of two liquids with a mixing ratio accuracy of ±1%
  The motor-driven volumetric transfer system accurately delivers a fixed amount of base resin and curing agent, eliminating uneven mixing and ensuring the high adhesive reliability and durability required for aircraft parts.
• Drastically improves work efficiency by suppressing dripping and residual material
  The stable liquid pressure balance inside the dispenser prevents dripping and smearing during application, eliminating the need to wipe down the application device or rework parts, resulting in benefits in terms of both labor and costs.
• Compatible with high viscosity materials, allowing for flexible operation depending on the application
  Stable mixing of two-component materials specialized for aviation applications, such as filling foam structures and high-strength adhesives, etc. Can be widely used in insert processes for lightweight structures (sandwich panels, etc.).

eco-DUO330/450/600

This high-precision dispenser is ideal for two-component insert filling and bonding processes in the aerospace and electronic component industries. It combines stability and operability, especially when dispensing minute amounts of high-viscosity, high-specific-gravity materials.

• The motor-driven rotor/stator mechanism achieves a mixing ratio accuracy of within ±1%, reducing the risk of poor curing.
• The base resin and hardener are dispensed at the same time in fixed amounts, allowing for mixing during application. By mixing immediately before application, excess material is minimized.
• The capacity scalable design allows you to select the unit according to the panel size and connection area.
• Supports a wide range of two-component materials used in the aviation and transportation industries, including adhesives, potting agents, sealants, and urethane foam.
• Particularly suitable for bonding structural inserts such as honeycomb cores