Laboratory
In the heat treatment sector, the quality control devices and equipment made after the heat treatment process are of great importance as well as the equipment with which the heat treatment processes are carried out.
In our metal laboratory, quality control measurements of heat treated materials are carried out in our company. In our laboratory services where the latest technology equipment is used, rockwell, brinell, microvickers hardness measurements, EHT hardness scanning, non-destructive material chemical composition analysis with spectral analyzer, microstructure analysis, crack control analysis with magnetic particles method can be performed.
The data obtained from the laboratory equipment are analyzed by our expert laboratory personnel and our production engineering department, thus providing the best service to our valued customers.
01
Sample Preparation
The material to be microstructure controlled is firstly cut and sampled at an appropriate scale. This sample is taken with bakelite. Then the surface is polished and the grain boundaries are made clear by etching with acid as the last step.
Sample preparation is a delicate process. The microstructure cannot be observed accurately in a sample that is not prepared properly.
Hardness Measurements
At the end of the heat treatment in our company, hardness control is performed on all materials and after the control, they are shipped to the customers. The controls are carried out by expert laboratory personnel, with fully calibrated hardness measurement devices.
02
Rockwell Hardness Measurement
Rockwell C (HRC) measurement is generally performed in our company. In this method, a diamond cone tip with a crown angle of 120 ° is used. Firstly, preload is applied to the material surface. Rockwell clock is reset after preload is applied. The total load is then applied. After the total load becomes stable, it is waited between 2 seconds. The total load is then removed and the value is read directly from the Rockwell comparator or digital display while on the preload pressure.
03
Brinell Hardness Measurement
In the Brinell hardness test, a ball made of steel or sintered carbide is pressed onto the surface of the sampled material. The diameter of the track created by the ball on the material surface is measured. The brinell hardness of the material is found by comparing the measured diameter from the brinel hardness table.
04
Vickers Hardness Measurement
A pyramid-shaped diamond tip with a peak angle of 136 ° is used for the Vickers hardness test. The diamond tip exerts a certain load on the material surface. The average length of the trace diagonals formed by the diamond tip on the material surface is measured. The vickers hardness of the material is found by comparing the measured value with the vickers hardness table.
05
Microstructure Analysis
In addition to the metal microscope, which has a very good image quality to make the microstructure analysis correctly, the main thing is the technical staff who can interpret the data obtained by the microscope. Our team of Ph.D. engineers and M.Sc. engineers specialized in heat treatment, in our company, provides the best service to our customers in microstructure analysis by analyzing the obtained data in the best way.
Grain Size Measurements
Diffusion Depth Measurements
Nitration - White Layer Depth Measurements
Phase Analysis
Spheroidization and Sphere Count in Ductile Iron
De-Carburization Detection and Measurement
Retained Austenite Analysis
Micro Crack Control
06
Chemical Composition Analysis with Optical Emission Spectrometer
With the spectrometer analyzer available in our company, the chemical composition of iron and steel materials can be determined and the type of steel can be determined. Especially on steels whose composition is unknown, this test is applied before heat treatment to ensure the correct determination of heat treatment method and parameters.
07
Crack Control with Magnetic Particle Method
Thanks to the magnetic particle crack test device in our company, it is possible to control the cracks on the material surface. The crack to be tested becomes visible with eye control under UV light after the operation on the device. Apart from this test, crack control with penetrant is also carried out in our company.
08
Process Repeatability
The necessary checks of the heat treatment machines and equipment in our company for the quality and repeatability of the processes are regularly carried out by the laboratory personnel.
TUS test (Heat dissipation test)
Carbon Potential verification tests (3 gas analysis)
Thermocouple verification tests
Washing bath concentration tests
Water Ph- Hardness - Conductivity tests
Vacuum tightness tests with helium tester
Combustion gas efficiency tests
