Metal Office Chair Breakage
The repair method for a broken metal office chair should be selected based on the broken part and the extent of the damage. Common repair methods are as follows:
If the broken part is a non-load-bearing structure such as the seat or armrests, it is recommended to use AB glue and connecting plates for repair. First, mix the AB glue in proportion and apply it evenly to the broken surface. After it dries, cover the broken area with a stainless steel connecting plate. Mark the hole positions and drill them using an electric drill or soldering iron, and finally secure the connecting plate with screws. This method provides initial connection through the adhesive and enhances structural strength with the metal connecting plate, suitable for parts that are not frequently stressed. After repair, the connection can be covered with carbon fiber stickers to improve aesthetics.
If the broken part is a load-bearing structure such as the chair legs, prioritize internal steel shaft reinforcement. First, create a positioning fixture to ensure coaxial drilling and avoid uneven stress caused by shaft misalignment. After drilling, apply metal-specific adhesive and hammer the steel shaft into the hole, ensuring the broken edges fit tightly together. Finally, place a heavy object on top and let it sit until the adhesive is fully cured. This method disperses stress through the steel shaft and combines the shear resistance of the adhesive to restore the chair's load-bearing capacity, suitable for cases where the broken surface is flat and the hole diameter matches.
If the breakage is accompanied by metal rust, rust removal must be performed first. Use sandpaper or a wire brush to remove rust from the broken surface and surrounding areas, ensuring the metal surface is clean and dry. If the rust is severe, first use a rust remover to soften the rust layer, then thoroughly clean it with tools. After rust removal, apply stainless steel repair paint to cover rust spots and form a rust-proof coating, extending the chair's lifespan. This step should be completed before repair to avoid rust affecting the performance of the adhesive or metal connectors.
The choice of adhesive should be determined based on the usage scenario: If the chair needs to be moved frequently or bear significant pressure, an epoxy resin-based metal-specific adhesive should be selected for its high strength, good weather resistance, and excellent impact resistance after curing. If the chair is only used for static sitting or light-load scenarios, a chloroprene rubber-based adhesive can be chosen for its higher cost-effectiveness and ease of use. Before applying the adhesive, clean the metal surface with alcohol or acetone to remove oil and dust, ensuring full contact between the adhesive layer and the metal. Follow the product instructions strictly for curing time to avoid secondary breakage caused by premature stress.
