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2019/04/24

The five main causes of errors in torsional vibration testing of shafts.

The five main sources of errors in torsional vibration testing of shafts are summarized from "Journal of Tsinghua University (Natural Science Edition)" 1997, Volume 37, "Research on Torsional Vibration Testing Errors and Their Correction Methods" by Tiancheng Testing. Torsional vibration measurement is significant for fault monitoring and diagnosis of rotating machinery. To measure torsional vibration, code disks with equal angular intervals are installed at both ends of the shaft. By measuring the time intervals for equal angular increments, information about torsional vibration can be obtained. However, due to the misalignment of the code disks and the shaft, as well as variations in the speed ratio when connecting the code disks and the shaft ends with couplings, there will be errors in the torsional vibration measurement. 1. Transmission eccentricity error.
The five main causes of errors in torsional vibration testing of shafts.

2019/04/07

Common Knowledge of Universal Testing Machine Fixtures

Common knowledge about the application of universal testing machine fixtures. The integrity, strength, and product quality of Taian Tiancheng Testing Equipment Co., Ltd. have been recognized in the industry. Friends from all walks of life are welcome to visit, guide, and discuss business.
Common Knowledge of Universal Testing Machine Fixtures

2019/04/01

The history and development of testing machines can be summarized as follows: Testing machines have evolved significantly since their inception. The earliest forms of testing machines date back to the 19th century, primarily used in laboratories to assess the strength and durability of materials. These machines were often manually operated and relied on mechanical systems to apply force. As industrialization progressed, the demand for more accurate and efficient testing methods grew. This led to the development of hydraulic and pneumatic testing machines in the early 20th century, which allowed for more precise control of the testing process. In the latter half of the 20th century, the introduction of electronic components revolutionized testing machines. Digital displays, computer interfaces, and automated data collection became standard features, enhancing the accuracy and efficiency of tests. Today, testing machines are highly sophisticated, incorporating advanced technologies such as computer software for data analysis, real-time monitoring, and automation. They are widely used in various industries, including construction, aerospace, and manufacturing, to ensure the quality and safety of materials and products.

The history and development of testing machines Author: Tai'an Tiancheng Testing Equipment Co., Ltd. The testing machine industry has a long history of 50 years, primarily focusing on the performance testing of materials produced by manufacturers. Its origin can be traced back to Changchun City, Jilin Province in Northeast China. With the growing demand for testing machine products across various industries, and the continuous improvement of manufacturing levels and rapid development of testing technologies in China, companies and enterprises producing testing machines have now spread across the country, producing hundreds of specifications, models, and series of testing machine products. Some testing machine products have already been exported.
The history and development of testing machines can be summarized as follows: Testing machines have evolved significantly since their inception. The earliest forms of testing machines date back to the 19th century, primarily used in laboratories to assess the strength and durability of materials. These machines were often manually operated and relied on mechanical systems to apply force. As industrialization progressed, the demand for more accurate and efficient testing methods grew. This led to the development of hydraulic and pneumatic testing machines in the early 20th century, which allowed for more precise control of the testing process. In the latter half of the 20th century, the introduction of electronic components revolutionized testing machines. Digital displays, computer interfaces, and automated data collection became standard features, enhancing the accuracy and efficiency of tests. Today, testing machines are highly sophisticated, incorporating advanced technologies such as computer software for data analysis, real-time monitoring, and automation. They are widely used in various industries, including construction, aerospace, and manufacturing, to ensure the quality and safety of materials and products.

2019/03/29

Considerations for Selecting Testing Machines for Metal Material Performance Testing

Tai'an Tiancheng Testing Equipment Co., Ltd. is a high-tech enterprise that integrates research and development, production, and sales. The company's products come with a two-year warranty and lifetime maintenance. All products use plug-and-play components, and key components are imported. In case of a malfunction, you only need to make a phone call, and all issues will be resolved within two days.
Considerations for Selecting Testing Machines for Metal Material Performance Testing

2019/03/26

Selection and Maintenance of Test Chambers

The selection and maintenance of constant temperature and humidity test chambers have been widely used in fields such as electronics, national defense technology, chemical engineering, mechanical manufacturing, and aerospace. 1. Three major purchasing suggestions for constant temperature and humidity test chambers are essential to ensure that users make correct and scientific choices when purchasing these chambers. The three main reasons to choose a constant temperature and humidity test chamber are: 1. Core technology of the test chamber; 2. After-sales service of the test chamber; 3. Transaction price of the test chamber. Only top-notch core technology...
Selection and Maintenance of Test Chambers

2019/03/24

How to use a universal testing machine

Universal Testing Machine Operating Instructions Author: Tai'an Tiancheng Testing Co., Ltd. 1) Check whether all valves in the oil circuit are in the closed position and whether the type and specifications of the clamps match the test piece, and check if the fuse has blown. 2) Select the appropriate range based on the maximum load required for the experiment, and configure the corresponding pendulum and adjust the buffer. 3) Install the drive device, pen, and paper of the automatic plotter. 4) First close the oil supply valve and return oil valve, then start the hydraulic pump motor. After the hydraulic pump is working normally, open the oil supply valve to raise the movable platform by about 1 cm to eliminate its self-weight; then close the oil supply valve.
How to use a universal testing machine
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