Dedicated to enhancing your product performance, Xingyunxin provides professional and customized metal surface strengthening solutions. These solutions improve the core properties of metal workpieces, such as wear resistance, corrosion resistance, and fatigue resistance, effectively solving common problems like mold sticking, wear of automotive parts, and fatigue fracture of fasteners.

ABP
ABP (Arc Spray Coating) technology uses an electric arc generated between two metal wires as the heat source to melt the wire material. Simultaneously, high-speed compressed gas (such as air or inert gas) atomizes the molten metal into fine droplets, which are then accelerated and sprayed onto the pre-treated workpiece surface to form a firmly bonded coating. It can provide ultra-long-lasting active cathodic anti-corrosion protection for large steel structures and achieve rapid and effective dimensional restoration and performance improvement in equipment maintenance.

QPQ
QPQ (Quench-Polish-Quench) salt bath composite treatment technology, also known as nitrocarburizing and oxidation multi-component co-diffusion technology, is a metal surface strengthening and modification process. Through composite treatment of nitrocarburizing and oxidation in a specific salt bath, this technology forms a dense compound layer and diffusion layer on the metal surface, achieving simultaneous improvements in wear resistance, corrosion resistance, and fatigue resistance, with almost no workpiece deformation. It is an environmentally friendly surface treatment technology that replaces traditional processes such as chrome plating and nitriding. It is widely applicable to die-casting molds, injection molds, and precision automotive parts.

Gas Nitriding and Oxidation
Gas nitriding involves placing a metal workpiece in a sealed nitriding furnace, heating it to 450–580°C (far below the steel quenching temperature), and introducing a nitrogen-containing medium (such as ammonia). Ammonia decomposes at high temperatures into active nitrogen atoms, which penetrate the metal surface and combine with the base metal (primarily iron, or alloying elements such as chromium, aluminum, vanadium) to form iron nitrides or alloy nitrides, thereby creating a high-hardness nitrided layer on the workpiece surface.
Metal surface oxidation technology uses chemical or electrochemical methods to form a dense, stable metal oxide film on the metal surface, providing rust prevention, decoration, or insulation.


Carburizing and Carbonitriding Technology
Carburizing involves placing low-carbon steel / low-alloy steel workpieces in a carbon-rich medium, heating to the austenitizing temperature (900–950°C), and holding for a certain time to allow active carbon atoms in the medium to penetrate the workpiece surface, forming a high-carbon austenite layer. Subsequent quenching (oil quenching or marquenching) transforms the surface layer into high-hardness martensite, while the core remains a tough low-carbon martensite or ferrite-pearlite structure. Finally, low-temperature tempering is performed to eliminate quenching stress.
Carbonitriding technology, developed on the basis of carburizing and also known as cyaniding, involves placing workpieces in a mixed medium containing carbon + nitrogen, heating to 820–880°C (lower than the carburizing temperature), and allowing active carbon and nitrogen atoms to simultaneously penetrate the surface layer after holding to form a carbonitrided layer. After quenching, the surface layer transforms into nitrogen-containing martensite. The addition of nitrogen atoms refines the martensite grains, improving hardness and toughness.