NJW-01 Microcomputer-controlled torsion testing machine

Introduction

The Windows operating platform enables various closed-loop controls for constant torque and constant torsion angle. Using a graphical user interface (GUI), the display screen and control panel can be customized; test speed and various control parameters can be set; real-time display of torque, screw-in torque, screw-out torque, minimum breaking torque, maximum torque, torsional strength, minimum breaking torsion angle, torsion speed, and peak torque can be displayed; real-time display of various relevant parameter graphs during the test process can be displayed; and system diagnostics can be performed and the results displayed.

The entire machine utilizes a fully digital AC servo control system and an FTS precision testing system. An optical encoder acquires the torsion angle of the sample, and a high-precision dynamic torsion sensor detects the torque of the sample.

The Windows operating platform enables various closed-loop controls for constant torque and constant torsion angle. Using a graphical user interface (GUI), the display screen and control panel can be customized; test speed and various control parameters can be set; real-time display of torque, screw-in torque, screw-out torque, minimum breaking torque, maximum torque, torsional strength, minimum breaking torsion angle, torsion speed, and peak torque can be displayed; real-time display of various relevant parameter graphs during the test process can be displayed; and system diagnostics can be performed and the results displayed.

The entire machine utilizes a fully digital AC servo control system and an FTS precision testing system. An optical encoder acquires the torsion angle of the sample, and a high-precision dynamic torsion sensor detects the torque of the sample.

Standard:

JB/T9370 -- 2015 《Technical conditions of torsion tester》

Gb10128-2007 《Metallic materials - Test method for torsion at room temperature》

JJG269-2006 《Verification regulation of torsion tester》

ASTM F543《Standard Specification and Test Methods for Metallic Medical Bone Screws》

Product description:

1. Main Unit: Utilizes a horizontal structure with a frame design to ensure overall rigidity. Sample installation and disassembly are convenient and quick.

2. Linear Guide Rail: The nut is fixed to a linear circular rail, allowing for easy movement.

3. Drive System: Driven by a fully digital AC control system, offering a wide speed adjustment range and uniform, stable loading.

4. Transmission System: Employs a servo motor for direct drive, ensuring uniform, stable, and precise transmission. Manual adjustment is possible within the lateral range.

5. Measurement and Display System: The machine uses an encoder to acquire the sample's torsional angle and a high-precision dynamic torque sensor to acquire the sample's torque. The computer screen displays the sample's torque, torsional angle, torsional deformation, and various curves.

6. Software Operation: The control mode employs an intelligent expert setting system, allowing users to customize the test process control according to their specific requirements, automatically completing the test. 7. FTS Precision Testing System:

1) Automatic Zeroing: Upon receiving the test start command, the main control computer automatically zeroes the measurement system.

2) Testing Process: The entire testing process, including measurement, display, and analysis, is completed by the microcomputer.

3) Testing Software: Windows user interface with simple and convenient menu prompts and mouse selection. 4) Display Mode: Data and curves are dynamically displayed during the test, with automatic curve scaling. Selectable curves include torque-time, torque-torsion angle, and torsion angle-time.

5) Result Reproduction: Test results can be freely accessed and re-analyzed.

6) Curve Traversal: After the test, the force and deformation data at each point on the test curve can be found using the mouse, facilitating the calculation of test parameters for various materials.

7) Result Comparison: Multiple sample characteristic curves can be overlaid with different colors, reproduced, and locally magnified for comparative analysis of a group of samples.

8) Batch Testing: For samples with identical parameters, a batch of samples can be tested sequentially after a single setting.

9) Test Report: Test data is automatically processed and displayed, and a test report conforming to national standards is printed, including the test date, number, material, torsion, etc. Test reports can be programmed and printed according to user-specified formats.

10) Overload Protection: Features overload protection: automatic shutdown when exceeding the maximum load by 3-10%, with electronic and mechanical dual-level protection to effectively prevent damage to sensors from overload.

11) Automatic Diagnosis: The system features automatic diagnostics, periodically checking the measurement and drive systems for overvoltage, overcurrent, and overtemperature. In case of abnormalities, it automatically shuts down and implements protection measures.

12) Automatic Data Saving: Test data and conditions are automatically saved, preventing data loss due to sudden power outages or forgetting to save.

13) All permitted operations can be performed on the testing machine's control panel or via a connected computer.

14) It features automatic tracking and measurement of torsional force and torsional angle, loading speed indication, and peak value hold.

15) An independent FTS digital data acquisition and processing system allows for computer control, acquisition, analysis, and processing of test data. Test data and curves are dynamically displayed throughout the test. The test data is automatically processed and displayed by a microcomputer, generating torque-angle and torque-time curves. It connects to a printer and prints test reports that conform to national standards, including test date, number, material, and torsional strength. It features automatic tracking and measurement of torsional force and torsional angle, loading speed indication, and peak value hold.

16) The freely movable worktable is suitable for specimens of various lengths.

17) Pre-installed with the FTS torsion testing machine software package under the Windows operating system, it can perform tests according to national standards or user-provided standards, and also meets ASTM, DIN, JIS, ISO, EN, and other standards.

18) The control mode adopts an intelligent expert setting system, allowing users to customize the test process control mode according to their actual requirements, automatically completing the test.

19) Test data is managed using a database, facilitating query and maintenance.

8. Safety Protection System: Includes overload protection, overcurrent protection, overvoltage protection, undervoltage protection, overspeed protection, and other abnormal protections.

Specifications：