HB/Z 223.2-2003
Aircraft assembling technology Part 2: Connecting bolt
飞机装配工艺 第2部分:螺栓安装
Catalogue
前言 → 1 范围 → 2 规范性引用文件 → 3 材料 → 4 工具 → 5 螺栓安装 → 6 涂漆和标记 → 7 质量控制 Foreword → 1 Scope → 2 Normative References → 3 Materials → 4 Tools → 5 Bolt Installation → 6 Painting and Marking → 7 Quality Control
Scope
This part specifies the installation procedures, installation requirements and inspection methods for bolts and nuts. This part is applicable to the assembly using bolted connections in aluminum, titanium and high-strength steel structures, including the assembly of bolted connections with elastic interference in aluminum alloy structures.
本部分规定了螺栓和螺母的安装程序、安装要求及检验方法。本部分适用于铝、钛和高强度钢结构中采用螺栓连接的装配，包括铝合金结构中有弹性过盈的螺栓连接的装配
Normative References
Keywords
Application Summary AI generated
Aircraft manufacturing and maintenance personnel use this standard to guide the bolt installation process, ensuring connection strength and sealing. This standard is critical for ensuring the safety and reliability of aircraft structures, especially in applications with high-strength materials and interference fits.
飞机制造和维修人员使用该标准来指导螺栓的安装过程，确保连接强度和密封性。该标准对于保证飞机结构的安全性和可靠性至关重要，特别是在高强度材料和过盈配合的应用中。
AI Summary AI generated
This standard specifies the installation procedures, requirements, and inspection methods for bolts and nuts in aircraft assembly, applicable to aluminum, titanium, and high-strength steel structures. It covers materials, tools, hole making, countersinking, chamfering, bolt installation (including interference fit and sealed installation), and quality control. The standard details technical parameters such as hole tolerances, surface roughness, and interference values, and provides installation processes and inspection methods to ensure connection strength, sealing, and structural safety.
该标准规定了飞机装配中螺栓和螺母的安装程序、要求及检验方法，适用于铝、钛和高强度钢结构。内容涵盖材料、工具、制孔、沉头窝制作、倒角、螺栓安装（包括过盈连接和密封安装）以及质量控制。标准详细列出了孔径公差、表面粗糙度、过盈量等技术参数，并提供了安装工艺和检查方法，以确保连接强度、密封性和结构安全。
Key Sentences extracted from text
螺栓孔应垂直于安装螺栓头的贴合面，孔的偏斜不大于0.5%
螺栓孔的精度要求如下: a) 高于或等于公差等级IT5的螺栓，孔公差等级比螺栓公差等级低一级; b) 低于公差等级IT5的螺栓，孔公差等级与螺栓公差等级相同。
螺栓沉头窝的深度极限偏差为±0.1 mm，其它技术要求按HB/Z 223.3。
螺栓头和螺母处的单向间隙数值应不大于该处上述诸因素引起的单向间隙总和最大值的62%。
过盈连接的螺栓在螺纹起点部分不允许有金属屑和毛刺。
The bolt hole shall be perpendicular to the bearing surface of the bolt head, with a hole inclination not greater than 0.5%.
The accuracy requirements for bolt holes are as follows: a) For bolts with tolerance grade equal to or higher than IT5, the hole tolerance grade shall be one grade lower than the bolt tolerance grade; b) For bolts with tolerance grade lower than IT5, the hole tolerance grade shall be the same as the bolt tolerance grade.
The depth limit deviation of the bolt countersink is ±0.1 mm, and other technical requirements shall comply with HB/Z 223.3.
The unilateral gap value at the bolt head and nut shall not exceed 62% of the maximum total unilateral gap caused by the aforementioned factors.
For interference fit bolts, no metal chips or burrs are allowed on the starting part of the thread.
Standard Timeline
Changes from replaced version:
- 增加了过盈连接螺栓安装技术条件要求
- 增加了保证过盈连接螺栓密封性的条件
- 增加了螺栓定力安装工艺过程
- 增加了重要螺栓的安装
- 增加了密封剂内部密封的湿法安装螺栓
- Added technical requirements for interference fit bolt installation
- Added conditions for ensuring sealing of interference fit bolts
- Added torque-controlled bolt installation process
- Added installation of critical bolts
- Added wet installation of bolts with internal sealant sealing