Composition analysis of metal materials
Composition analysis of metal materials
service content
The element composition of metal materials plays an important role in the mechanical properties, processability, durability and stability of materials. SGS has leading instruments, equipment and analytical means to detect the element composition and accurate content of metal materials.
1、 Scope of application:
ferrous metal: Cast iron, cast steel, structural steel, stainless steel, tool steel, heat-resistant steel, electrical steel and other special steels;
Non ferrous metals: Light nonferrous metals: Aluminum, magnesium, sodium, potassium, calcium, strontium, barium;
Heavy nonferrous metals: Copper, nickel, zinc, lead, cobalt, tin, antimony, mercury, cadmium and bismuth;
noble metal: Gold, silver, platinum, iridium, osmium, ruthenium, palladium, rhodium;
Semi metal: Silicon, selenium, tellurium, arsenic, boron;
Rare metals: Lithium, beryllium, titanium, vanadium, germanium, niobium, molybdenum, cesium, lanthanum, tungsten, radium, etc.
2、 Service items:
Test items Test introduction
Wet analysis Dissolve the material into solution, and use various chemical reactions to realize the quantitative determination of elements.
Direct reading spectral analysis OES An arc or spark is used to excite the atoms of the material to produce an electronic transition, and the electrons emit a characteristic spectrum when they return to the ground state from the high-energy state. The spectrum is dispersed into various spectral bands by the spectroscopic system. Based on the principle that the intensity of light is proportional to the concentration of elements to be measured, quantitative detection is realized.
Inductively coupled plasma
Emission spectrum analysis ICP Using the high temperature produced by argon plasma to decompose the material to form excited atoms and ions, electrons transition from excited states to low energy levels, and emit characteristic spectral lines. After being divided by grating and other light splitting systems, the detector detects the intensity of a specific wavelength to realize photoelectric conversion. Based on the principle that the intensity of light is proportional to the concentration of elements to be measured, quantitative detection is realized.
Gas element analysis
C/S/O/N/H Use carbon sulfur meter / oxygen nitrogen meter / hydrogen determinator and other equipment, and use thermal conductivity method, infrared absorption spectroscopy and other methods to conduct quantitative analysis of gas elements.
X-ray fluorescence spectrum analysis X-rays are used to excite the atoms in the substance to be tested to make their electrons transition. When returning to the ground state, X-ray fluorescence of different wavelengths will be emitted. The light wavelength is used to characterize the elements, and the light intensity is used to quantify the concentration of the elements.
Energy spectrum analysis Using X-ray radiation samples, the inner electrons or valence electrons of atoms or molecules are stimulated to emit to form photoelectrons. The energy of photoelectrons is measured and combined with their relative intensity (pulse /s) to form an electronic map, so as to obtain the composition of the object to be measured.
Spectrophotometric analysis It is a method of qualitative and quantitative analysis of the substance by measuring the absorption of light at a specific wavelength or within a certain wavelength range.
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Our advantages
1、 Our qualifications
1. Qualification accreditation of China National Accreditation Commission for laboratories -cnas;
2. China Metrology Certification -cma;
3. National aerospace and defense contractor credit project -nadcap;
4. CCS certification;
5. Hong Kong, China Laboratory Accreditation Program qualification accreditation -hoklas;
6. Enterprise certification: General GP10, Volkswagen VW, Ford, Hyundai MS, etc.
2、 Technical capability
Kapoklog - WSCT is an internationally recognized inspection, identification, testing and certification body and a recognized benchmark of quality and integrity. We have 13 professional metal laboratories and radiate across the country. The test items are comprehensive and can provide you with one-stop high-quality services.
