How to test Dongguan precision casting products

The internal quality of Dongguan precision casting products mainly includes chemical composition, metallographic structure, metallurgical defects, physical and mechanical properties, reliability, particle size (eutectic number), eutectic saturation, density, purity, continuity, etc.

These internal qualities will affect cutting performance, welding performance, operating performance, wear resistance, corrosion resistance, temperature resistance, working life and other use qualities. Their indicators are also improving.

Analyze and study the iron trace elements in front of the furnace, especially the gas element N.0.h.

2. Dongguan precision casting raw material quality inspection.

The X-ray fluorescence spectrometer can complete the complete analysis of ferrous alloys, desulfurizers, slags, refractory materials and minerals as nodulizing agents and inoculants within 5 minutes.

The portable alloy analyzer can complete the testing of various black and non-ferrous alloy raw materials in material warehouses and workshops within 5 minutes.

3. Metallographic structure and mechanical property testing.

Metallographic analyzer automatic intelligent metallographic structure: quantitative and qualitative analysis;

General material testing machines and electronic tensile testing machines intelligently analyze mechanical properties;

4. Non-destructive testing of precision castings.

Commonly used equipment includes magnetic particle testing, radiographic testing, ultrasonic testing or spheroidization rate testing, hardness and foundation testing, wall thickness testing, water (gas) pressure testing, etc., including complete sets of online automatic testing and online automatic sorting equipment.

Due to factors such as poor surface finish, loose materials, coarse grains, graphite, etc., attention should be paid to the selection of flaw detection methods, instrument and equipment matching, operating technology and personnel experience.