Ensure even mixing of steel adhesive and strengthen the safety defense line of building structure reinforcement

As a two-component epoxy structural adhesive, steel bonding adhesive is the core material in the field of building structure reinforcement. It is widely used in key scenarios such as external steel bonding reinforcement of concrete members, structural upgrading of old buildings, bridge support reinforcement, plant equipment foundation reinforcement, and post disaster building structure repair by virtue of its super bonding strength, anti-aging, medium corrosion resistance and other characteristics. Its core function is to enhance the load-bearing capacity of components and ensure the long-term safety and stability of building structures by bonding steel plates and concrete substrates. The mixing quality of the adhesive directly determines the bonding effect - the uniform fusion degree of the two components (A/B components) and the residual amount of bubbles in the colloid are key factors affecting the bonding strength and structural durability. Traditional mixing methods are difficult to meet the strict requirements of "precision, uniformity, and defect free" for building reinforcement. SMIDA planetary centrifugal mixers provide professional solutions for this.
There are significant industry pain points in the mixing of adhesive and steel, which are directly related to structural safety. Firstly, adhesive and steel need to be mixed in strict weight ratios (commonly A: B=2:1 or 3:1). Traditional manual or simple mixing can lead to mixing deviation, resulting in incomplete curing of the adhesive or brittle performance after curing, greatly reducing the bonding strength and burying structural safety hazards; Secondly, uneven mixing of two-component adhesives can result in color stripes and differences in local curing rates, causing shrinkage cracks in the adhesive layer and preventing the formation of a continuous bonding interface, which affects the synergistic stress between steel plates and concrete; Thirdly, the air trapped during the mixing process forms bubbles, which, if not removed, can create voids in the adhesive layer. When subjected to stress, it can easily cause stress concentration, leading to problems such as debonding and steel plate warping; In addition, the viscosity of the adhesive solution increases under low temperature conditions, making it more difficult to achieve uniform mixing with traditional stirring, further restricting the construction quality.
The SMIDA planetary centrifugal mixer is designed to ensure the mixing quality and structural safety of two-component adhesive steel from the source. The equipment adopts a dual power structure of "revolution+rotation", and the mixing blade rotates at high speed while revolving around the center of the cylinder body, forming a gentle and comprehensive shear and circulation flow field. It can ensure the molecular level uniform fusion of A/B components according to the ratio, eliminate color stripes and local mixing defects, and avoid excessive shear damage to the molecular structure of the adhesive liquid, ensuring that the bonding strength meets the standard after curing (the shear strength of the steel steel bonding is ≥ 20MPa, which meets the A-level adhesive requirements of the "Code for Design of Concrete Structure Reinforcement"). For the pain points of bubbles, the equipment is equipped with a high-precision vacuum system, which can maintain a stable vacuum environment throughout the mixing process, efficiently discharge free bubbles in the adhesive solution, and eliminate hollow defects in the adhesive layer from the source. At the same time, the equipment supports precise speed adjustment and adapts to different viscosities of adhesive steel. Even in low-temperature environments, uniform mixing can be achieved by optimizing mixing parameters to ensure stable construction quality.
Whether it is the large-scale steel adhesive preparation for large bridge reinforcement projects or the small-scale construction for the renovation of old residential areas, SMIDA planetary centrifugal mixers can be accurately adapted. The device is easy to operate and can be combined with an electronic scale to achieve precise proportioning and direct mixing, greatly reducing manual operation errors and improving construction efficiency; The mixed adhesive steel gel is evenly distributed without bubbles, forming a dense bonding interface to ensure a strong bond between the steel plate and the concrete substrate, effectively extending the service life of the building structure. In emergency reinforcement scenarios such as post disaster repair, the efficient mixing capability of equipment can also help accelerate construction progress and quickly restore structural safety.