Lis hardness is a test equipment. The principle is that with the development of single -chip technology, in 1978, Dr. Leeb, Swiss, proposed a new hardware measurement. Its basic principle is a impact body with a certain qualityUnder a certain test force, impact the surface surface of the sample, measure the impact speed and return speed at 1mm at the surface of the shock sample, and use the electromagnetic principle to be a positive voltage that is proportional to the speed.
Lishi hardness meter principle
Its basic principle is that the impact body with a certain quality impacts the surface of the sample under a certain test force, and measures the impact speed of the impact on the surface of the sample of the shock body.Voltage.Lis hardness value is represented by the ratio of impact back jump speed to impact speed.
Lis hardness meter model
Times TH170 Lis hardness meter (with type D impact device) Model: RL113711 Product Description ● Product Features: It is a pocket -type hardness detection instrument, which is easy to operate and operates.The lower limit, the automatic alarm beyond the range, the soft calibration function of the value of the value, the USB interface, it can be equipped with microcomputer software to meet the higher requirements of quality and management. It can store 270 average, which is divided into 9 files for easy access.Can test six hardness systems (HV, HRC, HRB, HB, HV, HS), conversion.It can be connected to the printer, the printing test results, with voltage display and no electricity prompts, there is an underwriting automatic shutdown function, with a D -type impact device.Test hardness system: HV, HRC.
How to use Lis hardness meter
1. Start the shock device socket of the impact device (sensor) plug into the instrument; press the [Kwan/Stage] key, at this time the power supply is connected, the instrument enters the state to be measured, and the measured material state (carbon steel/cast iron/tools/toolSteel/alloy steel, etc.).2. Load 1) Push down the loading sleeve to lock the impact body and complete the load.2) Press the shocking device supporting ring on the surface of the sample according to the selected measurement direction. The impact direction should be maintained perpendicular to the test surface.
Lis hardness meter price

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