QX/T 18-2020 in English
VALIDCheckout specifications for 37 mm antiaircraft gun used for weather modification operation
- Issued on:2020-06-16
- Implemented on:2020-09-01
- File Format:PDF
- Delivery:Via email within 5 business days
$592.00
本标准规定了用于人工影响天气作业的37 mm高炮（含自动化改造的高炮）主要部件检测的技术要求、检验方法以及检测项目的分类。
本标准适用于人工影响天气作业用1965年式及自动化改造的双管 37 mm高炮检测，其他年式37 mm高炮可参照使用。
Introduction
Core changes in the standard revision
| Contents of the 2003 version | Changes to the 2020 version | Technical significance |
|---|---|---|
| No special instructions in the standard name | Explicitly includes automated transformation of anti-aircraft guns | Adapt to equipment technology upgrades |
| 11 categories of inspection items | 5 new categories of inspections such as automated transformation | Improved inspection system |
| Fire hood clearance requirements | Delete this inspection item | Simplify non-critical indicators |
Analysis of key inspection technologies
Gun system inspection
Barrel inspection requirements include: outer surface pit depth ≤ Appendix A limit, curvature ≤ straightness gauge standard, chamber growth ≤ 22mm. Focus on using the barrel tester to perform three-dimensional scanning of the inner bore, which can simultaneously detect:
- Rifling wear
- Chamber volume change
- Metal fatigue cracks
Automation transformation detection
Added 12 electrical tests such as electromagnets and control systems:
- Grounding resistance ≤100Ω
- Insulation resistance ≥0.5MΩ
- Azimuth error ≤0.8°
Typical case: A base reduced the synchronization error from 1.2mm to 0.3mm through calibration of the recoil sensor
Implementation suggestions
Detection cycle planning
| Test type | Recommended cycle | Required inspection items |
|---|---|---|
| Annual inspection | ≤12 months | 3.1-3.28 Basic items |
| Pre-operation inspection | Before each operation | 3.35 Linkage test |
Common problem handling
When Rammer asynchrony occurs, the following should be checked first:
- Recoil spring preload (≥2400N)
- Panel protrusion height (5.2-6.2mm)
- Electromagnet armature stroke
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