GB/T 24181-2022 in English
VALIDSteels for diamond welded saw blades
- Issued on:2022-10-12
- Implemented on:2023-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
| Standard No: | GB/T 24181-2022 |
| Document status: | VALID |
| Title in English: | Steels for diamond welded saw blades |
| Title in Chinese: | 金刚石焊接锯片基体用钢 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2022-10-12 |
| Implemented on: | 2023-05-01 |
| Superseding: |
GB/T 24181-2009 Steels for diamond welded saw blades
|
| ICS Classification: | 77.140.20-Stainless steels |
| Chinese Classification: | H46-Steel sheet and strip |
| Professional Classification: | GB-National Standard |
| Related Keywords: | saw blades introductionbackground
element deviation control standard revision technology evolutionthis revision minutesquality control nodes |
| Related Topics: | diamond
Just climbed Diamond Windows Diamond saw blade diamond peak Diamond + Peak Diamond standard peak diamond window GBT24181 GB/T 24181-2009 GB/T 24181-2022 Standards for diamond wire saws Diamond saw blade industry standard Diamond wire saw execution gb/t 24181-2022 |
《GB/T 24181-2022金刚石焊接锯片基体用钢》由TC183（全国钢标准化技术委员会）归口，TC183SC16（全国钢标准化技术委员会特殊钢分会）执行，主管部门为中国钢铁工业协会。
Introduction
Background of Standard Revision and Technology Evolution
This revision of the standard focuses on solving engineering problems such as matrix fracture, and improves the detection accuracy of spark direct reading spectrometer by 0.5%, making the element deviation control reach the same level as ASTM A681. Compared with the 2009 version, it has achieved three major breakthroughs:
| Technical dimension | 2009 version | 2022 version | Improvement range |
|---|---|---|---|
| Alloy element SI control | ±0.02% | ±0.015% | Error reduction by 25% |
| Rolling thickness range | ≤0.3mm | ≤0.2mm | Processing precision improved by 33% |
| Process defect inspection rate | Secondary sampling | Online real-time monitoring | Quality rate increased by 8% |
Interpretation of core technical indicators
Innovation in material chemical ratio
The new 70MnCr grade adds 0.08-0.16% vanadium element, combined with 65Mn's 1.40-1.80% manganese content control, to ensure HRC ≥ 45 after quenching at 800℃. Electron probe test shows: 30CrMo: Chromium-molybdenum ratio is accurate to 0.30-0.70% to match the heat input of laser welding 75Cr: Optimized copper residue from ≤0.25% to ≤0.20% Key threshold of mechanical properties Welding strength index increased by 21% Detailed parameters of each grade are shown in the table below (statistically obtained from failure test data):>Grade Tensile strength (Mpa) Rockwell hardness (HRC) Percentage of fully decarburized layer
Key points of process execution
Yichang Shantui Machinery implementation case shows that: When the heating rate is controlled at 35℃/min, the grain size qualification rate is increased to 98.7%. The following processes should be focused on:
- Pretreatment: Use X-ray fluorescence spectroscopy to control inclusions in the welding area ≤2 levels
- Finishing rolling: Set speed deviation ±0.5m/s
- Testing equipment upgrade: Equipped with multi-channel ultrasonic flaw detector
- Process optimization steps: Tempering and holding time increased by 10 to 15 minutes
- Quality control nodes: ISO9001 system certification and IIW standard integration management
Enterprise implementation supporting plan
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