Kolery is a scientific instrument manufacturing and service provider specializing in the research of analytical instruments and methods. It has a well-established and mature independent research and development innovation operation system in the field of spectrometer technology, and its overall strength is in a leading position in the industry. It has accumulated more than 20 scientific research achievements. The company is committed to providing more professional technical services such as testing, analysis, and solutions to customers such as governments, enterprises, and industry organizations through high-tech.
Since its establishment, Kolery has devoted itself to the development of a series of spectral chemical analysis instruments, including inductively coupled plasma emission spectrometers, atomic absorption spectrometers, atomic fluorescence spectrometers, carbon sulfur analyzers, oxygen nitrogen hydrogen analyzers, etc. The related technical products have obtained over 100 patents and software copyright certificates, and the products have obtained the type approval certificate for measuring instruments issued by the Jiangsu Provincial Market Supervision Administration, Instrument software has been rated as a provincial-level software product by the Jiangsu Software Industry Association.
Instrument Introduction
The KR-ONH6700 oxygen nitrogen hydrogen analyzer is a new generation element analysis instrument. It features a desktop integrated design, beautiful appearance, and easy operation.
The oxygen nitrogen hydrogen analyzer is an intelligent analytical instrument composed of a pulse furnace and a computer, with a pyroelectric sensor and a high-precision thermal conductivity detector as the core. The instrument is mainly used for the analysis of oxygen, nitrogen, and hydrogen content in ferrous metals, non-ferrous metals, rare earth metals, inorganic substances, ores, ceramics, and other materials in industries such as metallurgy, machinery, commodity inspection, scientific research, and chemical engineering.
Instrument principle
Oxygen, nitrogen, and hydrogen in metal and non-metallic solid materials are detected using the inert gas melting principle. In the determination of oxygen, nitrogen, and hydrogen, the weighed sample is placed in a graphite crucible and melted through high-temperature heating in a helium (argon gas can be used for single oxygen measurement) airflow. The oxygen in the sample reacts with the carbon in the graphite crucible to generate carbon monoxide (CO), and the nitrogen in the sample escapes in the form of nitrogen. These mixed gases are sent to the conversion furnace by helium gas, and carbon monoxide (CO) is converted into carbon dioxide (CO2). The nitrogen does not react. The mixed gas after passing through the conversion furnace is sent to an infrared detection cell, where carbon dioxide (CO2) (H2O) is detected. Then, after infrared detection, the carbon dioxide (CO2) and water in the mixed gas are adsorbed, and the remaining nitrogen and helium gas mixture is detected through a thermal conductivity detection cell. Quickly and accurately determine the oxygen, nitrogen, and hydrogen content in steel, cast iron, alloys, copper, zirconium, titanium, rare earth materials, and other inorganic substances.
Infrared detection system
Standard oxygen and hydrogen analyzers are equipped with independent infrared absorption cells, and the length and number of channels of the absorption cells can be flexibly configured according to user needs (dual infrared absorption cells can be equipped);
Detector: Adopting a pyroelectric solid-state infrared detector and a high-precision A/D sampling card, the entire machine has extremely high detection sensitivity and can effectively detect ppm level oxygen content;
Motor: The modulation system adopts a high-precision stepper motor controlled by a microcontroller, achieving long-term stability of the modulation frequency;
Light source: The infrared light source uses efficient and long-lived precious metal miniature infrared luminescent bodies and gold-plated metal mirrors;
Constant temperature: The entire gas chamber is controlled at a constant temperature to ensure the constant temperature of the analysis gas and measurement accuracy. A temperature compensated semiconductor detector is used to ensure that the instrument is minimally affected by external factors and the baseline is very stable.
High precision detection system
The use of a highly sensitive thermal conductivity detection cell, continuously adjustable pool current, high-precision amplifier, and 24-bit A/D sampling card hardware ensure the determination of nitrogen content from ultra-low to large ranges. Adopting low drift, high accuracy, large range, high sensitivity thermal conductivity detector with low failure rate, strong reliability, and good stability. Adopting an imported high-precision constant temperature control system, the temperature is controlled within 0.1 °C. The reference gas circuit adopts stable micro flow control.
Pulse furnace
The pulse electrode furnace has a high heating temperature and adopts program controlled power. It can provide various program heating methods such as constant power heating, slope heating, and segmented heating to improve analysis accuracy. Suitable for rapid analysis from low melting point materials such as aluminum alloys to high melting point materials such as tungsten alloys. The electrode is suitable for various types of crucibles. According to the release situation of different samples, various crucibles can be selected, including sleeve
crucibles and high-temperature crucibles, effectively reducing user usage costs. The electrode cooling system adopts a single cycle independent cooling system, which can be directly connected to circulating water or external water cooling devices, and has the characteristics of good cooling effect and high reliability. Online real-time detection of the temperature of cooling circulating water.
