High frequency infrared carbon & sulfur analyzer for nodular cast iron material detection

Use high frequency infrared carbon & sulfur analyzer to analyze nodular cast iron. First, what is nodular cast iron?  Ductile iron has been widely used in various mechanical parts due to its high comprehensive mechanical properties, such as internal combustion engine crankshafts, camshafts, automotive clutch and chassis parts, certain machine tool spindles, ploughshares in agricultural machinery, and valve bodies in general machinery, Hydraulic components, etc.  It is also widely used in the production of cast pipes, rolls and ingot molds.  Jin Yibo's professional high-frequency infrared carbon and sulfur analyzer can quickly and accurately detect the content of carbon and sulfur in nodular cast iron materials. It is also widely used to detect ferroalloys, stainless steel, carbon steel, alloy steel, cast iron, ductile iron, Content of carbon & sulfur in non-ferrous metals and other materials.  High-frequency infrared carbon & sulfur analyzer-using dual CPU processing system; high-precision acquisition system, up to four times per second; industrial-grade module power, strong anti-interference ability; platinum infrared light source, sufficient light energy; using aviation motor modulation light source signal, the signal is stable; gold-plated detection chamber, less light absorption; dual carbon infrared detection cell can be added, automatic switching, etc.  The adjuvant used for spheroidizing treatment is called spheroidizing agent. Commonly used are pure metal magnesium and alloys.  Compared with ordinary gray cast iron, nodular cast iron has higher strength, better plasticity and toughness.  China is rich in rare earth metals, and ductile iron has become a widely used structural material.  Production process: Pure magnesium, nickel-magnesium, silico-iron magnesium or silico-iron rare earth magnesium alloy is used as a nodulizing agent in hot metal with slightly higher carbon-silicon content and low sulfur and phosphorus content, and then ferrosilicon, silico-calcium or other components .The alloy is inoculated, and nodular cast iron can be obtained in the as-cast state.  In order to further change its mechanical properties, nodular cast iron can be subjected to various heat treatments, such as annealing normalizing, quenching, tempering or isothermal quenching.  Depending on the chemical composition, solidification rate, and heat treatment specifications, the microstructure of ductile cast iron, in addition to spheroidal graphite, can obtain different metal substrates.  Ferrite ductile iron with lower tensile strength and higher elongation; pearlitic ductile iron with higher tensile strength and lower elongation; and bainite and austenite with excellent tensile strength and elongation, Body-Bainite Ductile Iron, etc.  Development: In order to reduce casting defects and improve the mechanical properties of nodular cast iron at the same time, people are studying to improve the molten iron smelting process, reduce the sulfur content in the molten iron, develop new inoculants, and perform a variety of mechanical properties such as high and low temperature performance, fatigue. Research work on strength, fracture toughness and testing.  It is also an important development direction to develop a production process that can achieve the desired performance of nodular cast iron without heat treatment, and add a small amount of alloying elements to obtain higher tensile strength and elongation.