What is a bolt tension testing machine?
In the fields of industrial manufacturing and construction engineering, bolts are key connectors, and their quality and reliability directly affect the safety performance of the overall structure. In order to ensure that the strength of the bolts meets the standards,Bolt tension testing machineBecome an essential testing equipment. This article will introduce in detail the definition, working principle, application scenarios and parameter comparison of popular models on the market.
1. Definition of bolt tension testing machine
The bolt tensile testing machine is a device specially used to test the tensile strength of bolts, screws, rivets and other fasteners. It measures the maximum load-bearing capacity of the bolt before breaking by applying axial tension to evaluate whether its mechanical properties comply with industry standards (such as ISO 898, ASTM F606, etc.).
2. Working principle
The testing machine exerts gradually increasing tension on the bolt through a hydraulic or electric drive system, while sensors record load and displacement data in real time. The test results can generate stress-strain curves for analyzing key indicators such as yield strength, tensile strength and elongation of the bolt.
3. Application scenarios
1.automobile manufacturing: Quality inspection of engine and chassis bolts
2.Aerospace: Safety verification of high-strength fasteners
3.construction project: Reliability testing of steel structure connectors
4.Electrical equipment: Regular inspection of transformers and transmission tower bolts
4. Comparison of parameters of popular models (TOP5 market attention in the past 10 days)
| Model | Maximum load(kN) | Accuracy level | Test speed (mm/min) | Price range (10,000 yuan) |
|---|---|---|---|---|
| HTM-1000 | 1000 | Level 0.5 | 1-500 | 12-15 |
| WDT-600 | 600 | Level 1 | 0.1-300 | 8-10 |
| MTS-322 | 2000 | Level 0.3 | 0.5-1000 | 25-30 |
| ZwickRoell Z100 | 100 | Level 0.1 | 0.01-1200 | 18-22 |
| Instron-3382 | 250 | Level 0.2 | 0.05-800 | 15-20 |
5. Technology Development Trends (Recent Hot Topics)
1.Intelligent upgrade: Several manufacturers have launched testing machines equipped with AI algorithms that can automatically identify bolt specifications and match test plans.
2.5G remote monitoring: The IoT test machine jointly developed by Huawei and Sany Heavy Industry realizes real-time data cloud storage
3.Green energy saving: The new generation servo motor system reduces energy consumption by 30% and becomes the focus product of the Canton Fair
6. Purchase suggestions
1. Select the load range according to the test requirements (conventional construction bolts are recommended to be below 600kN)
2. Give priority to models certified by CNAS
3. Pay attention to after-sales service response time (the industry average standard is 24 hours on site)
According to the Baidu Index, the search volume for "bolt tensile testing machine" has increased by 23% month-on-month in the past 10 days, with procurement consultation volume in Guangdong, Jiangsu, and Shandong accounting for 47% of the national total. In terms of the international market, Alibaba International Station data shows that the number of inquiries in Southeast Asia increased by 65% year-on-year, reflecting the equipment demand brought about by the infrastructure boom in the region.
To sum up, as the "goalkeeper" of quality control, the technological development of bolt tensile testing machines is deeply integrated with global hot spots such as intelligent manufacturing and green industry. Users need to comprehensively consider testing needs, budget and future scalability when purchasing to choose the most suitable detection solution.
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