A three-way catalytic converter is the core external purification device in an automotive exhaust system. It is primarily composed of a honeycomb carrier made of materials such as metals and cordierite, along with a γ-alumina catalytic coating that contains noble metals including platinum, palladium, and rhodium, as well as rare-earth components. Its operating principle relies on high temperatures ranging from 400–800 °C, during which the catalyst enhances the reactivity of carbon monoxide (CO), hydrocarbons (HC), and nitrogen oxides (NOx) present in the exhaust gases, facilitating their oxidation and reduction into harmless carbon dioxide (CO₂), water (H₂O), and nitrogen (N₂).

READ MORE

The welded components for three-way catalytic converters refer to a complete, ready-to-install exhaust system module in which the converter serves as the core element and is integrated with the inlet pipe, outlet pipe, flanges, sensor fittings, and other parts through welding processes. It is no longer a single emission-control component, but a composite assembly that incorporates environmental purification, mechanical connection, and sealing functions. The welded component series for three-way catalysts represents the trend toward modularization, integration, and plug-and-play design in catalyst products. By integrating the core catalytic function with the necessary mechanical structure, it provides users with a convenient maintenance solution. This series covers a wide range of products—from OEM premium models to cost-effective aftermarket versions, and from close-coupled front sections to under-floor main sections—making it an important and mature product category in the automotive aftermarket exhaust system sector. Choosing the correct welded component series is key to ensuring vehicle emissions compliance, performance restoration, and long-term stable operation.

READ MORE

The three-way catalytic converter for generator sets is a critical component for reducing harmful exhaust emissions from the unit, capable of simultaneously purifying carbon monoxide (CO), hydrocarbons (HC), and nitrogen oxides (NOx) present in the exhaust gases.

READ MORE