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ISO34-1 Right angle with notch cutting knife die
NegotiableUpdate on 05/06
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Overview
ISO34-1 Right angle with notch cutting knife die: The right angle without notch cutting knife in ISO 34-1 standard is a very interesting and special testing tool. It is not used for the commonly understood "tear strength" test, but for evaluating the comprehensive energy required for a material to initiate and propagate a tear from scratch.
Product Details
📊ISO34-1 Right angle with notch cutting knife dieProduct specifications and core features
The standard model of this cutting knife is usually referred to asDIN ISO 34-1 B（直角型）The core parameters are as follows:
| project | Detailed information |
|---|---|
| standard basis | ISO 34-1 (corresponding to the national standard)GB/T 529-2008) |
| sample size | 2 × 31.7 × 100 mm(Thickness x End Width x Length) |
| Sample shape | Standard 90 ° Right Angle Cutting Knife |
| core features | The cutting unit does not include a cutting bladeSpecially used for preparing right angle specimens without any pre made notches |
| Optional configuration | usually haveNo incision, fixed incision, adjustable incision depthThree versions to choose from |
🛠️ISO34-1 Right angle with notch cutting knife dieDesign Features and Testing Principles
1. Design Features
The design of this cutting knife is very sophisticated, aimed at ensuring the accuracy of test results and the safety of operation:
Premium materialsThe blade adoptsPowder metallurgy tool steelBuilt to ensure a long service life.
High quality cuttingThe blade isDouble sided grinding bladeEnsure that the cut sample section is vertical and the edges are neat, to avoid any defects in the sample affecting the test results.
Easy to operate: WithSpring loading systemandAutomatic ejection functionAfter cutting, the sample will automatically pop up for easy retrieval.
safety protectionThe cutting edge is protected, effectively reducing the risk of cuts during operation.
Strong compatibilityEquipped with a clamping adapter, it can be installed and used on different types of sample cutting machines.
2. Test Principle
According to the ISO 34-1 standard, using a right angle specimen without a notch for testing belongs toMethod B, Program (a)Its testing principle is very unique:
Test contentThe test isCombination of tear initiation and tear propagationThe tensile force accumulates at the right angled vertex of the specimen until it is sufficient to trigger a tear, and further stress will cause the tear to continue to propagate.
Interpretation of resultsHowever, the testing machine can only measure the amount required to cause the specimen to rupturetotal forceIt is impossible to decompose force into two independent components: "causing tearing" and "expanding tearing". Therefore, this total force reflects the comprehensive ability of the material to resist tearing initiation and expansion.
💡 Why do we need a cutting knife without a notch?
You may have a question: Since tear testing usually requires an incision, why use a cutting knife without a notch?
The answer is:To evaluate the ability of materials to resist tearing from scratch in practical useIn some application scenarios, rubber products are intact before use, and we need to know how much force is required to start tearing and ultimately breaking under stress concentration (such as sharp corners). This is precisely the significance of the uncut right angle tear test.
By contrast,Sample with notchWhether it is a fixed incision or an adjustable incision, it is to evaluate the material's effectivenessExisting defectsThe resistance ability excludes the process caused by tearing and focuses on measuring the force of tear propagation.
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