GB/T 34217-2017 in English
VALIDRefractory products--Determination of torsion strength at elevated temperature
- Issued on:2017-09-07
- Implemented on:2018-08-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
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《GB/T 34217-2017耐火材料 高温抗扭强度试验方法》由TC193（全国耐火材料标准化技术委员会）归口，TC193SC3（全国耐火材料标准化技术委员会试验方法分会）执行，主管部门为国家标准化管理委员会。
Introduction
GB/T 34217—2017 Professional Interpretation of High-Temperature Torsion Strength Test Method for Refractory Materials
I. Background and Significance of the Standard
GB/T 34217—2017 is a standard formulated for the torsional performance test of refractory materials under high temperature conditions, which is of great significance for evaluating the structural integrity and service life of refractory materials. The standard was proposed by the National Technical Committee for Standardization of Refractory Materials and is managed by the same authority to ensure its authority and applicability.
II. Comparative analysis of standard frameworks
| Dimensions | GB/T 34217—2017 | Comparison standards |
|---|---|---|
| Term definitions | Terms such as high-temperature torsional strength, breaking temperature, and high-temperature torsional creep are clarified. | Keep consistent with GB/T18930, and add new term explanations. |
| Test equipment | Specialized equipment such as torsion testing machines and vernier calipers are required. | Equipment requirements are in line with international standards to ensure test accuracy. |
| Data processing | The high-temperature torsional strength is calculated using the formula, accurate to three decimal places. | The numerical rounding rules of GB/T 8170 are met to ensure the reliability of the results. |
III. Test methods and steps
Case analysis:In a refractory material manufacturer, samples were prepared according to standard requirements, and a torsion testing machine was used to test the high-temperature torsional strength. By recording the maximum torque and torsion angle when the sample broke, its high-temperature torsional strength was calculated to be 15.23 MPa, which meets the requirements of industry standards.
IV. Implementation suggestions
- Before the test, ensure that the equipment is calibrated and the temperature control is accurate.
- Be careful to avoid cracks and dents during sample preparation.
- When recording data, be sure to distinguish between valid and invalid samples, and retest until the quantity requirements are met.
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