Glovebox Laser Welding Machine
improve welding effectand protect components
Equipment configuration can be customized
Production requirements for ultra clean environment
Accurate control of water and oxygen content
What is Glovebox laser welding
The glove box laser hermetic sealing welding system performs laser welding in a water free and oxygen free (water oxygen content less than 1ppm) inert gas protection environment. From inert gas drying, vacuum baking to final sealing, the components are always in a controlled environment chamber. This provides great protection for the sealing of sensitive electronic components, as well as expensive components such as micro microwaves and human medical implants. At the same time, it is very suitable for welding materials that are highly prone to oxidation. Compared to epoxy resin, welding, or mechanical seals, it provides extremely durable airtight sealing.
Functional principle of glove box
The working gas inside the glove box is circulated in a closed manner through pipelines, circulating fans, etc. between the box body and the purification column (water oxygen adsorber) under the control and monitoring of PLC. When the working gas circulates through the purification column, its water and oxygen content are adsorbed and then returned to the box. As the circulation time passes, the water and oxygen content in the working gas in the box gradually decreases, eventually reaching the target of less than 1ppm. After a certain period of circulation, the purification column will become saturated with adsorption and can be regenerated and reused.
When the temperature is low, T1, the molecular sieve water saturation C1 is high, which can absorb a large amount of water.
When the temperature is high, T2, the water saturation amount C1 of the molecular sieve is low, and the adsorbed water will be released first and evaporated. Regeneration of molecular sieves is achieved by heating and vacuuming.
Benefits of Laser Welding in Glovebox
- Clean welding with controlled water oxygen content
- Precision welding suitable for implantable medical devices
- Inert gas can be sealed inside the component cavity
- Customizable operating space suitable for different products
- Excellent welding oxidation suppression
- Transition warehouse structure can be customized
- Support double-sided glass windows
- Customizable constant temperature environment inside the box
Applicable environment
Suitable for use in cleanroom environments ranging from hundreds to millions, as well as in conventional workshops and laboratories.
implantable medical
- Cleanroom-certified environment
- Control of water oxygen content
- HE Leak Rate＜1×10⁻-12Pa·m³/s
- Example: Heart Pacemaker
Military manufacturing
- Vacuum hermetic sealing
- Long term vacuum maintenance
- HE Leak Rate＜1×10⁻-12Pa·m³/s
- Example: Metal Shell
Microwave RF
- Inert gas environment
- Thermal impact control
- HE Leak Rate＜1×10⁻-9Pa·m³/s
- Example: Filter
sensor
- Welding penetration control
- Vacuum hermetic sealing
- HE Leak Rate＜1×10⁻-9Pa·m³/s
- Example: Pressure Sensor
Relevant standards
| Category | Standard | Scope | Key Criteria |
|---|---|---|---|
Material |
ASTM F136 |
Medical Titanium (Ti6Al4V ELI) |
Biocompatibility/O₂≤0.13% |
AMS 4911 |
Aerospace Titanium |
Tensile Strength≥895 MPa | |
MIL-DTL-24176 |
Military Kovar Seals |
CTE 4.8±0.1×10⁻6/℃ | |
Welding Process |
ISO 13919-1:2023 |
Laser Welding Quality Class |
Grade B Welds (Aerospace) |
MIL-STD-2219 |
Military Laser Welding |
Depth-to-Width Ratio≥5:1 | |
NASM 1312 |
Aerospace Electronics |
Thermal Cycling (-65°C~150°C) | |
Hermeticity Test |
MIL-STD-750E |
Military Sealing |
He Leak Rate＜1×10⁻⁸ cc/s |
ASTM E499 |
Helium Leak Detection |
Leak Rate＜5×10⁻⁷ Pa·m³/s | |
GJB 548B |
Military Microelectronics |
Fine+Gross Leak Dual Verification | |
Military Spec. |
MIL-STD-883 |
Microelectronics Reliability |
Particle Impact Noise Detection |
DEF STAN 02-813 |
Military Vacuum Sealing (UK) |
He Leak Rate＜5×10⁻⁹ mbar·l/s |