1、 Scheme description:

The Longmen Rockwell hardness tester adopts a gantry frame structure, which has good rigidity, reliability and durability; The testing space is large, suitable for the inspection of large-sized workpieces, so the application range is wide; Adopting electronic automatic loading method for closed-loop control system, the testing process is automated and easy to operate; High precision, no human error, can be calibrated and corrected at any time according to the deviation of force values, and has extremely high stability.

Meet the standards:

Produced in accordance with GB2848-92 "Technical Conditions for Rockwell Hardness Testers", while implementing GB/T230.2-2002 "Metallic Rockwell Hardness Test Part 2: Inspection and Calibration of Hardness Testers", European standard BSEN10109-96 "Metallic Materials Rockwell Hardness Test", and international standard "Metallic Materials Rockwell Hardness Test - Inspection and Calibration of Hardness Testers".

2、 Product Introduction

The Longmen Rockwell hardness tester consists of the following parts:

Door frame mechanism: composed of a combination base, columns, upper crossbeam, precision ball screw, servo motor and reducer, decorative cover, etc., among which the servo motor and reducer are imported well-known brands. The structure has a beautiful appearance, good rigidity, reliability, and durability. The entire structure has undergone beautification, anti-corrosion, and rust prevention treatments

Loading actuator: middle crossbeam, main shaft, and high-precision load sensor.

Spindle lateral movement mechanism: control motor, precision ball screw, precision linear guide, high-precision displacement measurement mechanism to control displacement

Workbench operating mechanism: servo motor and displacement transmission mechanism combined with high-precision displacement measurement mechanism to control displacement.

Electrical control mechanism: composed of high-end electrical control console, well-known brand electrical components, servo control system, etc

Protective decorative device: Except for necessary exposed components, the rest adopt a covered structure. Using high-quality cold-rolled steel plates and spray coating technology, the entire equipment has a clean, standardized, and aesthetically pleasing appearance.

Operation and display: High end control box, LCD display panel; Ergonomic design, beautiful and practical.

Equipped with a reading microscope for data processing.

3、 Working principle

This device is adjustable in the X, Y, and Z directions along three axes, making it easy to detect. The pillar of the gantry mechanism is on the Z-axis, the loading crossbeam is on the X-axis, and the worktable operation is on the Y-axis. The moving distance of the workbench is not less than 1500mm, and the workpiece can be conveniently placed on the workbench. The workbench moves in a straight line along the Y-axis, which facilitates the adjustment of the detection position; The servo motor drives the precision screw to drive the loading actuator to move along the Z-axis to apply the test force, and the load sensor on the loading actuator ensures the accuracy of the loading force value; The spindle mechanism is driven by a control motor to run the ball screw along the X-axis, and the displacement is controlled by a high-precision displacement measurement mechanism for accurate selection and adjustment of detection points; Large testing space and wide application range, especially suitable for Rockwell hardness testing of large metal components. The closed-loop control system consists of a servo motor, high-precision displacement measurement mechanism control, and high-precision load sensor, which achieves high testing accuracy and realizes process automation.

4、 Technical parameters:

Initial test force: 98.07 (10kgf)

Hardness measurement range: 20-88HRA; 20—100HRB； 20—70HRC

Total test force: 588.4N (60kgf) b. 980.7N (100kgf) c. 147lN (150 kgf)

Rockwell hardness scale: A, B, C

Rockwell hardness scale scale: Scale C: O-100; Scale B: 10-100; Scale A: O-100.

Pressure head specification:

Diamond cone indenter: cone angle 120 °, cone top radius R<><p=''><>

Steel ball indenter: Steel ball diameter is 1.5875mm.

Maximum height of specimen: 500mm.

The maximum distance from the center of the head spindle to the frame is 500mm.

Workbench size (length x width): 1500x1000mm.

Dimensions (length x width x height): Host 2000 * 1800 * 2180mm.

The range of upward and downward movement of the pressure head is 0-600mm.

The range of left and right movement of the pressure head is 0-800mm.

Power supply: AC 220V

5、 Standard configuration:

1. Host 1

2. Standard Rockwell hardness block 3

3. Diamond cone indenter 1

4. Diameter 1.5875mm ball indenter 1

5. Flat sample table (made according to customer size requirements) 1

6. Pressure head tightening screw

6、 Working conditions

a、 Room temperature within the range of 10-35 º C;

b、 Relative humidity not exceeding 85%;

c、 In an environment without corrosive media around;

d、 Installed on a concrete foundation with a thickness of not less than 150mm or fixed on a foundation weighing more than 880 kilograms;

e、 Adjust the levelness of the installation reference surface on the machine base to within 0.2/1000.

7、 Quality Assurance

(1) Directly facing customers

(2) Establish customer profiles for all users who achieve sales and conduct monthly follow-up visits.

(3) Conduct monthly follow-up visits to all users and record electronic information cards