MH/T 6133-2024 in English
VALIDTechnical Specifications for Aircraft Corrosion Inhibitors
- Issued on:2024-08-26
- Implemented on:2024-09-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
Price(USD)：
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$248.00
$248.00
| Standard No: | MH/T 6133-2024 |
| Document status: | VALID |
| Title in English: | Technical Specifications for Aircraft Corrosion Inhibitors |
| Title in Chinese: | 飞机缓蚀剂技术规范 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2024-08-26 |
| Implemented on: | 2024-09-01 |
| ICS Classification: | 49.020-Aircraft and space vehicles in general |
| Chinese Classification: | V00-Standardization and quality management |
| Professional Classification: | MH-Civil Aviation |
| Related Keywords: | corrosion inhibitor
film corrosion inhibitor corrosion inhibitor permeability electronic corrosion inhibitor circuit beam corrosion |
Introduction
Interpretation of the core content of the standard
| Type of corrosion inhibitor | Applicable scenarios | Key performance indicators | Special requirements |
|---|---|---|---|
| Hard film corrosion inhibitor | Coating repair in medium and severe corrosion sensitive areas | Salt spray resistance ≥1500h, dryness ≤0.01g | Must pass -55℃ low temperature bonding test |
| Soft film corrosion inhibitor | Temporary protection of structural gaps | Flash point ≥60℃, salt spray resistance 336h | Maximum friction coefficient ≤0.3 |
| Electronic and electronic corrosion inhibitor | Circuit board/electrical connector protection | Contact resistance change ≤20mΩ | Pass hydrogen embrittlement test (ASTM F519) |
Key technical innovations
This standard establishes a special corrosion inhibitor technology system for electronic and electrical equipment for the first time, and innovatively proposes:
- Artificial seawater-sulfite spray test: simulates the marine atmospheric corrosion environment, and the test cycle is shortened to 1/5 of the traditional method
- Quantitative evaluation of permeability: accurately measure the corrosion inhibitor permeability through the grid counting method (≥70% pass)
- Circuit board compatibility test: A hard indicator that the contact resistance change value is ≤10%
Implementation and application suggestions
Typical cases of aviation maintenance
An airline used hard film corrosion inhibitor to treat 737NG aircraft wing beam corrosion:
- Surface treatment: Remove oxide layer to Sa2.5 level
- Film preparation: Spray thickness 50-80μm
- Effect verification: After 1500h salt spray test, the corrosion rate was reduced by 92%
Standard evolution analysis
Compared with international mainstream standards (such as MIL-PRF-81309), this standard has three major breakthroughs:
- New special testing clauses for electronic and electrical equipment (5.2.25-5.2.26)
- Introduction of environmental friendliness requirements (4.1.1 Prohibition of G1/G2 carcinogens)
- Establishment of a supplier-purchaser dual quality control chain (Chapter 6)
Sample only — not a preview of MH/T 6133-2024
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