Preface
With the increasingly complex service conditions of products, the characteristics of parts and tool surfaces under high temperature conditions are becoming more and more important
Raising people's attention, high-temperature hardness testers are used to analyze the thermal stability of material surfaces and enhance the application scope of material surfaces
The circumference and performance are of great significance.
Scope of application:
Suitable for quenching, tempering, annealing, cold hardening castings, malleable castings, hard alloy steel, aluminum alloy, copper alloy, etc
Hardness measurement of bearing steel, etc. Also applicable to surface quenched steel, material surface heat treatment and chemical treatment layers, copper and aluminum alloys,
Thin sheet, galvanized, chrome plated, tin plated materials, bearing steel, cold hard castings, etc.
Product Features
This hardness tester has a novel appearance, complete functions, easy operation, clear and intuitive display, and stable performance. It is an integrated machine
A high-tech product that integrates electricity, capable of conducting hardness tests on all Rockwell and surface Rockwell scales.
Host parameters:

High temperature system：
Heating element: using silicon molybdenum rod for heating, characterized by stable temperature and small overshoot.
High temperature furnace: The insulation lining of the furnace body is made of polycrystalline mullite ceramic fibers, which have good insulation effect, beautiful appearance
The characteristics of long service life and easy installation and maintenance; Spray thermal barrier coating on the inner side of stainless steel furnace body to ensure maximum safety
Excellent insulation effect.
Hot table: Made of silicon nitride ceramics, which are characterized by good high temperature resistance, high strength, and low coefficient of expansion.
Heating switch: The heating system adopts a switch power supply (12V200A). Although compared to traditional transformers,
Its single unit cost is relatively high, but its working stability and reliability, as well as its own volume and weight, are all factors
Superior to traditional thyristor power supplies, with high energy utilization efficiency and no electromagnetic signal interference to surrounding areas;
At the same time, the switch power supply is equipped with a floating function to maximize the personal safety of users.
Water cooling protection: using a constant temperature controlled chiller, the outer wall of the furnace body is made of double-layer stainless steel, and the hollow is filled with flowing water
High temperature control temperature 40° C 。The constant temperature controlled chiller not only ensures a constant temperature on the outer surface of the furnace, but also
It can stabilize and fine tune the furnace temperature, making the temperature inside the furnace more accurate and beneficial for improving the accuracy of the experiment.
High temperature furnace parameters:

Purification circulation system (optional):
The enclosure and gas purification system form a closed working environment, and inert gas (argon) is filled into the enclosure
Or nitrogen), and circulate to remove the active substances, keeping the system clean and high-purity inert
Gas environment (equipment with water and oxygen levels below 0.1ppm). This will not affect the force of the hardness tester
The value and measurement accuracy are affected, while also preventing the sample from oxidizing during the heating process.
Product features and advantages
1.Extremely low system leakage rate:
The factory standard for the leakage rate of this glove box is<0.005VOL%/H, and the standard glove box leakage rate is actual
The measured value is less than 0.001VOL%/H, far below the internationally recognized standard of less than 0.05VOL%/H. The system
The oxygen method has the function of automatically detecting leakage rate.
After assembly, the entire system adopts three sets of testing procedures:
a. Positive and negative pressure change detection;
b. Helium mass spectrometer leak detector for airtightness testing;
c. Oxygen method leak rate detection.
2.Strong deoxygenation and water removal circulation purification capability:
The circulating purification system adopts a unique patented technology for the reduction and regeneration of purification materials
Technology can use a steel cylinder to reduce and regenerate 8-10 kilograms of deoxygenation agent, so deoxygenation
The filling amount of the agent can reach 8 kilograms, and the filling amount of the water removal agent matched with the oxygen removal agent can also reach
Up to 16 kilograms.
Main parameters
1）Water content standard<1ppm, measured value<0.1ppm
2）Oxygen content standard<1ppm, measured value<0.1ppm
3）Leakage rate standard<0.005VOL/H, measured value<0.001VOL/H, glove box comes with oxygen
Automatic detection function for gas leakage rate (currently the internationally recognized glove box leakage rate standard is ＜
0.05VOL/H）
4）Deoxidizer filling amount: 8 kilograms
5）Filling amount of water removal agent: 16 kilograms
6）Activated carbon filling capacity: 6 kilograms
7）Effective oxygen removal:>80 liters
8）Effective water removal capacity:>2.5 kilograms
9）Primary regeneration rate of purification materials:>80%