GA 280-2024 in English
VALIDStainless steel aluminum buttons for police uniforms
- Issued on:2024-04-28
- Implemented on:2024-07-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
Price(USD)：
$279.00
$271.00
$271.00
| Standard No: | GA 280-2024 |
| Document status: | VALID |
| Title in English: | Stainless steel aluminum buttons for police uniforms |
| Title in Chinese: | 警用服饰 不锈钢包铝纽扣 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2024-04-28 |
| Implemented on: | 2024-07-01 |
| ICS Classification: | 61.040-Headgear. Clothing accessories. Fastening of clothing |
| Chinese Classification: | A94-Police-used device and tool |
| Professional Classification: | GA-Security |
| Related Keywords: | stainless steel aluminum buttons
stainless steel coated aluminum stainless steel stainless steel process verification stainless steel strip |
Introduction
Background of Standard Revision and Technological Evolution
GA 280-2024 replaces the 2001 copper nickel-plated buckle standard, mainly achieving three major technological breakthroughs:
| Technical Dimensions | 2001 Version (Copper Nickel-plated) | 2024 Version (Stainless Steel Coated Aluminum) | Upgrade Benefits |
|---|---|---|---|
| Material Structure | Hollow Copper Structure | 304 Stainless Steel + 1050 Aluminum Solid Structure | Deformation Resistance Increased by 40% |
| Corrosion Resistance | Electroplated Nickel Layer Corrosion Resistance | Main material anti-corrosion + salt spray test | Washing resistance increased by 3 times |
| Specification system | 3 specifications (φ13-22mm) | 5 specifications (φ13-26mm) | Adapt to the design of new police uniforms |
Analysis of core technical requirements
1. Material specifications
The buckle surface is made of 304 stainless steel strip (0.15mm soft state), and the buckle core is made of 1050 aluminum plate. Key indicators:
- The stainless steel strip must meet the Cr content ≥18% and Ni content ≥8% of GB/T 3280
- Aluminum elongation ≥ 20% (GB/T 3880.1)
- Tensile strength of buckle handle ≥ 300N (φ26mm specification measured average value reaches 420N)
2. Key points of process control
Zhejiang Xingyuan Clothing Production Case Shows:
- The stamping process needs to control the mold gap ≤ 0.03mm
- The riveting pressure is maintained in the range of 8-10MPa
- The polishing speed is recommended to be 2800-3200rpm
Quality Inspection Implementation Guide
1. Type Inspection Process
| Inspection Items | Method Basis | Judgment Criteria |
|---|---|---|
| Salt spray test | QB/T 3826 | No substrate corrosion after 48 hours |
| Tensile test | Clause 6.5.2 | Displacement speed 200±10mm/min |
2. Common defect prevention and control
The 2024 version adds Handle deflection test, requirements:
- Deflection angle ≤3° (φ26mm specification)
- Pattern clarity must reach more than 90% of the standard
Standard implementation suggestions
- Material traceability: It is recommended to establish an XRF spectrum detection process for 304 stainless steel
- Process verification: New molds must pass ≥5000 stamping tests
- Packaging improvement: Storage packaging needs to add moisture-proof agent (RH≤80%)
Sample only — not a preview of GA 280-2024
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