Good domestic instruments! What neck-stuck technologies have been broken through by the high-frequency fatigue testing machine?
In recent years, with the rapid rise of China's manufacturing industry, domestic high-end instruments and equipment have achieved technological breakthroughs in many fields. Among them, high-frequency fatigue testing machines, as key equipment for material performance testing, have long relied on imports, but now the localization process has achieved remarkable results. This article will combine the hot topics and hot content on the Internet in the past 10 days, sort out the technological breakthroughs of domestic high-frequency fatigue testing machines, and analyze the "stuck neck" problem behind it.
1. The importance of high-frequency fatigue testing machine
High-frequency fatigue testing machines are mainly used to test the fatigue properties of materials under alternating loads, and are widely used in aerospace, automobile manufacturing, rail transit and other fields. The technical difficulty lies in high frequency, high precision, and long-term stable operation. Previously, the domestic high-end market was monopolized by European and American companies.
2. Technical breakthroughs in domestic high-frequency fatigue testing machines
The following are breakthroughs in key technologies of domestic high-frequency fatigue testing machines:
| Technical field | Breaking point | Progress of localization |
|---|---|---|
| High frequency drive system | Independently developed electromagnetic drive technology with a frequency of up to 200Hz or more | Breaking the German corporate monopoly |
| load control system | Adopting closed-loop control algorithm, accuracy reaches ±1% | Comparable to international first-line brands |
| data acquisition system | High sampling rate (100kHz) real-time acquisition | Realize domestic substitution |
| Core components | Independently develop high-stiffness frames, sensors, etc. | Reduce external dependence |
3. The significance of breaking through “stuck neck” technology
1.Reduce costs: The price of domestic equipment is 30%-50% lower than that of imported products, greatly reducing the burden on enterprises.
2.Ensure supply chain security: Avoid the risk of supply interruption caused by changes in the international situation.
3.Promote industrial upgrading: Provide better testing methods for domestic material research and development and accelerate the process of new material research and development.
4. Expert opinions and industry feedback
According to recent industry forums and media reports, many experts spoke highly of the breakthrough of domestic high-frequency fatigue testing machines:
| Experts/Institutions | point of view | source |
|---|---|---|
| Professor Li (Tsinghua University) | Domestic equipment is close to the international advanced level in terms of stability | "Science and Technology Daily" report in 2023 |
| Engineer Zhang (CRRC Group) | After using domestic equipment, testing costs are reduced by 40% | Industry seminar speech |
| Researcher Wang (Chinese Academy of Sciences) | It is recommended to further strengthen the development of software algorithms | Material Testing Technology Forum |
5. Future development direction
1.Intelligent upgrade: Combined with AI technology to achieve intelligent early warning and data analysis.
2.Multi-scenario application: Develop special models suitable for extreme environments (high temperature, low temperature, etc.).
3.international competition: Promote domestic equipment to go abroad and participate in international market competition.
6. Conclusion
The technological breakthrough of domestic high-frequency fatigue testing machines is an epitome of China’s independent innovation of high-end instruments and equipment. From following, to running alongside, to leading in some fields, Chinese manufacturing is achieving leapfrog development in many high-tech fields. In the future, with continued technological accumulation and innovation, domestic high-end instruments and equipment will surely provide stronger support for the construction of a "manufacturing power".
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