Testing equipment

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Quality assurance test room

Lianxin Quality Assurance Laboratory under the complete quality assurance framework (QC, QA, QE, SQC), the products undergo strict IQC, IPQC, FQC and OQC audit and management processes to provide customers with the best quality and service, and Provide customers with accurate and credible quality-related test reports. Lianxin International shall provide customers with more testing items, and also purchase relevant testing equipment and incorporate them into testing projects.

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    Bell-type spheroidizing annealing furnace

    Suitable for stress relief, softening and recrystallization annealing, spheroidizing annealing, etc. of metals such as steel castings, steel plates, steel wires and disk elements.

  • Rockwell hardness test

    With a certain load, the small steel ball or diamond cone is used as the indenter, pressed into the surface of the test piece, and the indentation depth generated is converted into the material hardness value (HRB).

  • Metallographic observation

    The metal wire or finished product is embedded in plastic powder, and is heated and cooled to solidify into a block test piece. After cutting, grinding, polishing, acid etching the surface, etc., the internal structure of the metal is observed by a microscope, and the metal is observed. Analysis of material microstructure, carbon distribution, and interfacial defects