Coal picks (cutting tools for coal mining machines, tunneling machines and other equipment) need to go through multiple quality inspection processes from raw materials to finished products, involving testing of key indicators such as material properties, mechanical strength, wear resistance, hardness, etc. The following are commonly used testing equipment and their uses in each production link: 1. Raw material testing stage Mainly for steel, alloy powder (such as carbide cutter heads), coating materials, etc. Composition and performance tests. Spectrometer (such as direct reading spectrometer/OES): Detect the chemical composition of steel (C, Mn, Cr, Mo, etc.) to...