QJ 3011A-2016
QJ · 2016-01-01
General technical requirements for aerospace electronic and electrical product soldering
规范
1Key Takeaways
Aerospace Electronic and Electrical Product Welding General Technical Requirements Standard Number: FL 1690 QJ 3011A-2016 (Replaces QJ 3011-1998) Scope: This standard specifies the general requirements for welding of aerospace electronic and electrical products, including environmental conditions, weld…
2Expert Interpretation
An in-depth interpretation of the aerospace industry standard QJ 3011A-2016 "General Technical Requirements for Welding of Aerospace Electronic and Electrical Products", covering core technical points such as welding process parameters, material selection, equipment requirements and quality inspection, and providing high-reliability electronic assembly solutions.
Standard Evolution and Technology Upgrade
| Technical Dimension | QJ 3011-1998 | QJ 3011A-2016 |
|---|---|---|
| Classification of Soldering Methods | Basic Classification | Detailed Technical Requirements for Manual/Wave/Reflow Soldering |
| Process Parameters | General Requirements | Quantitative Indicators for New Equipment Soldering Parameters |
| SMT Component Requirements | Not Specified Separately | 12 new special requirements for surface mount components |
Key process control points
Welding material specifications
- Solder selection: S-Sn63PbAA (printed circuit board) and S-Sn60PbAA (tin lining) are preferred
- Flux restrictions: RA type flux is prohibited for wire core welding
- Cleaning agent requirements: Specify 5 types of special solvents such as anhydrous ethanol and isopropyl alcohol
Key equipment parameters
| Equipment type | Temperature accuracy | Special requirements |
|---|---|---|
| Temperature-controlled soldering iron | ±5℃ | Ground resistance <2Ω |
| Wave soldering equipment | ±5℃ | Copper content ≤0.4% |
| Reflow oven | ±2℃ | Horizontal temperature difference ≤5℃ |
Implementation and application suggestions
SMT device soldering control
For BGA/CGA package devices, the following should be strictly implemented:
- Complete welding within 48 hours after opening
- Peak temperature ≤235℃
- X-ray inspection void rate <25%
Quality Inspection System
| Inspection items | Method | Judgment standard |
|---|---|---|
| Wetting Angle | 20x microscope | <30° |
| Coplanarity | Optical projector | ≤0.1mm |
| Internal defects | X-ray inspection | No cracks/bridging |
3Version History
QJ 3011A-2016
current
5Citation Network
0
Cite this standard
19
Referenced herein
Referenced by QJ 3011A-2016
GB/T 3131
GB/T 9491
QJ 165B-2014
QJ 20023
QJ 201
QJ 2227
QJ 2600
QJ 2711
6Frequently Asked Questions
What is QJ 3011A-2016?
QJ 3011A-2016 — General technical requirements for aerospace electronic and electrical product soldering is an international standard developed by Professional Standard - Aerospace. Aerospace Electronic and Electrical Product Welding General Technical Requirements Standard Number: FL 1690 QJ 3011A-2016 (Replaces QJ 3011-1998) Scope: This standard specifies the general requirements for welding of aerospace electronic and...
What does QJ 3011A-2016 cover?
This standard covers: Aerospace Electronic and Electrical Product Welding General Technical Requirements Standard Number: FL 1690 QJ 3011A-2016 (Replaces QJ 3011-1998) Scope: This standard specifies the general requirements for welding of aerospace electronic and electrical products, including environmental conditions,...
Who should use this standard?
This standard is intended for organizations, professionals, and stakeholders involved in various industries and sectors. It is applicable to manufacturers, service providers, regulatory bodies, and certification organizations.
What is the latest version of QJ 3011A-2016?
The current published version is QJ 3011A-2016, published on 2016-01-01. Always check for amendments or pending revisions.
How do I purchase QJ 3011A-2016?
You can purchase QJ 3011A-2016 by visiting our contact page. Click "Get This Standard" to view pricing and send a purchase inquiry. Our team will respond with payment and delivery details.