How to solve the problem of HB-3000 Brinell hardness meter-[Information]

HB-3000 Brinell hardness meter The machine adopts lever loading and stable test accuracy. The HB-3000 Brinell hardness meter won the National Quality Silver Award and mechanical reversing switch. It can be used to determine the Brinell hardness value of unquenched steel, cast iron, non-ferrous metals and softer bearing alloy materials. Any machine and equipment are inevitably faulty during use. So how to solve the failure of the HB-3000 Brinell hardness meter? Let’s briefly describe the common faults and solutions:

There are several solutions to the failure of the HB-3000 Brinell hardness meter:

1. The measured hardness value is inconsistent with the standard hardness block display value

Causes and methods for eliminating this failure: (1) The hardness meter is not installed horizontally, and the hardness meter should be adjusted to horizontal; (2) The surface of the steel ball is not smooth or the diameter exceeds the tolerance, use a micrometer to select qualified steel balls to replace it; (3) The error of the indentation measurement device is too large, so the allowable error of the indentation measurement device should be adjusted so that it is ≤±0.5%; (4) The weight cannot be placed vertically, and the weight and the back cover of the hardness meter should be rubbed against. Check whether the lifting ring is hung on the key blade and whether the hanging boom is straight, otherwise the lifting ring should be hung on the key blade and straightened the hanging boom; (5) The perpendicularity of the spindle and the test platform, the coaxiality of the spindle axis and the lifting screw axis exceeds the difference. The verticality of the spindle and the test platform and the verticality of the spindle and the test platform, the coaxiality of the spindle and the lifting screw axis should be analyzed and adjusted according to the situation.

2. Load error exceeds ±1.0% or is unstable

Causes and methods for eliminating this fault: (1) The blade of the force point is loose, and the blade of the force point should be adjusted and tightened; (2) The wear of the blade of the force point and the fulcrum will increase the load error to varying degrees, and the blade should be studied; (3) The position of the adjustment block on the load lever is inappropriate, and it can be moved forward or backward according to the situation, and then fixed and tightened after adjustment; (4) The compression spring is rusted, increasing friction with the final and spindle bushings. The rusted parts should be cleaned and protective oil should be added or replaced. (5) The loading is unstable and there is impact vibration phenomenon, and factors that cause unstable should be eliminated.

3. Press the button switch, the hardness meter does not operate, but there is a humming current sound.

The cause of this failure is that the motor phase is missing. Check whether the power supply is normal, whether the power plug is plugged in well, whether the cable is broken, whether the power switch is intact, whether the motor wiring is firmly connected, whether the motor coil is burned out, and whether the contacts of the commutation switch should be properly contacted, etc., which should be eliminated separately depending on the situation.

4. The loading speed cannot be controlled within the specified time.

The loading speed is too fast or too slow, mainly because the viscosity of the oil used in the reducer is too small or too large. The reducer should be cleaned and the oil used in the reducer should be replaced.

5. The hardness meter repeatedly unloads

Causes and methods for troubleshooting this fault: (1) The key switch tip rod is too long, and the contacts of the steering switch A and B cannot be disconnected from the contacts A1 and B1. The length of the tip rod should be adjusted and fixed; (2) The installation position of the commutation switch is improper, and the movable baffle cannot touch the pin on the commutation switch, causing the commutation switch to not commutate, and the installation position of the commutation switch should be adjusted.

The above is a related introduction about how to solve the problem of the HB-3000 Brinell hardness meter? I hope it can help you! Warm reminder: If the machine has a fault and is not clear about how to solve it, please consult a technician or call the manufacturer. Never operate blindly to avoid danger! The best service is our pursuit. New and old customers are welcome to purchase their favorite products with confidence. We will serve you wholeheartedly!