First, advanced testing equipment

Zhuzhou Sanxin Cemented Carbide Production Co., Ltd. has a dust-free laboratory with a cleanliness level of 100. It is equipped with more than 20 advanced large-scale precision analytical test instruments and analytical and test personnel with solid basic theory and rich practical experience. It operates strictly in accordance with ISO/IEC 17025, General Requirements for Testing and Calibration Laboratory Capabilities, and is accredited by the China National Accreditation Service for Conformity Assessment (CNAS).

The chemical analysis laboratory, powder performance laboratory, metallographic physics laboratory, material mechanical property laboratory and electron microscope laboratory under the testing center can meet the analytical testing needs of hard alloys, non-ferrous metal composite materials and high-purity metals. .

2. Strict quality management system

In strict accordance with the ISO9001:2008 system for quality control, continuous improvement, perfect quality assurance circulation system, to ensure product quality and ensure customer satisfaction.

(1) Each batch of raw materials entering the plant must undergo strict control of incoming ingredients, including testing of total carbon, chemical carbon, oxygen content, and other proportions of elements, Fischer's particle size, and bulk specific gravity. Any indicators that do not meet, return to the raw material supplier.

(2) Each batch of the mixture must be subjected to chemical analysis, including determination of Co content, determination of total carbon and oxygen, and any indicators that fail to return to the re-dosing system.

(3) Each batch of the mixture must be pressure tested, sintered, and tested for physical properties for metallographic analysis. Including density, hardness, strength, cobalt magnetic, coercive force, porosity, grain size, and metallographic structure testing. Batch press and sintering can be carried out only after successful pressure test.

(4) Detect the dimensional tolerance and deformation of the test block.

(5) The physical properties of each batch of products, including density, hardness, flexural strength, cobalt magnetic, coercive force, porosity, grain size, and metallographic structure, were tested after pressing and sintering.

(6) Each batch of molds and sheet products must be tested for flaw detection, and sand hole products are never allowed to leave the factory.

(7) Before the packaging, the size, accuracy and defects of each product shall be tested, and no unqualified products shall be allowed to leave the factory.

We save each batch of analysis samples for 2 years and the analysis report for 5 years. We can track the raw material information according to the batch number of each batch of products.