Welding Transformer: Difference between revisions
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Welding transformers deliver the high current needed for [[welding]]. Depending on the type, they may also integrate wire feed or gas delivery functions. | |||
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[[Category:Welding]] | [[Category:Welding]] | ||
Latest revision as of 13:50, 2 July 2024
Welding transformers deliver the high current needed for welding. Depending on the type, they may also integrate wire feed or gas delivery functions.
Einhell BT-GW 150
| MachineInfoBox Einhell BT-GW 150 | |
|---|---|
| |
| Synonyms: | Schutzgasschweißgerät |
| Type: | Welding Transformer |
| Material: | 0.6 or 0.8 mm welding wire; metal |
| Used with: | welding gas |
| Location: | Welding Area |
| Access Requirements: | Arc Welding Introduction |
| Status: | In Commissioning |
| Manual: | einhell-service.com (PDF) |
| Tutors: | Lukas Pakue Johannes Luzian |
| Similar (More or Less): | welding transformer |
MIG/MAG welding machine by Einhell.
To be used with welding gas for MIG welding or MAG welding.
This tool is not ready for use yet since not all commissioning steps have been completed. The process is not yet tracked on GitHub. Feel free to contribute to making it usable, any help is very welcome!
| Task | comment | Status |
|---|---|---|
| Name the tool: | - | done |
| Take a picture | - | done |
| Find the manual as PDF | needed for all machines - add a link to the InfoBox or comment where you could not find it | done |
| Documentation | this page, status: in commissioning | done |
| Print QR-Code | use the MachineQR Factory | done |
| Introduction | - | pending |
| Security Check | to be done or witnessed by a manager | done |
| Test | to be done or witnessed by a manager | done |
| tool's name, owner and approx. value | provide to Johannes for inventorization | pending |
| Last step: make it available | physically and in the wiki - then delete this template | pending |
Gas Setup
The welding gas is at ~200 bar if the gas cylinder is full. A pressure reducer reduces this pressure. It also limits the flow rate of the gas. Notice the flow rate has a scale for each type of gas.
10 L/min is a good starting value for the flow rate. Both the bottle valve and the second valve have to be open for gas to flow. Turn the regulation knob to adjust the flow rate. Always turn the gas off at the bottle valve after usage to reduce leakage losses while keeping the pressure setting of the reducer.
Settings & Usage
The welding machine has a setting for the welding current, as well as a setting for the wire feed rate. It uses welding wire of 0.6 mm or 0.8 mm diameter. The wire spools can have up to 5 kg. If you swap in a wire of a different diameter, you must also change the contacting pipe (Kontaktrohr, see manual).
Before welding the metal workpiece, you need to ground it using the grounding clamp. Read the welding introduction on further precautions you might need to take.
The welding gun has a trigger. It turns on gas flow, electricity and wire feeder simultaneously. The gas prevents the hot metal from exidizing. As soon as the wire gets close to the grounded workpiece, a light arc is formed which melts the wire and the workpiece.
Turning the welding current too high might trip the circuit breaker. Just turn the current down and reset the circuit breaker.
Wear Parts
The gas nozzle is subject to extreme conditions and might get covered in slag and weld droplets over time. Replacement parts, perhaps even from ceramics, will be necessary at some point - but please regularly to clean the nozzle to keep it alive for a long time!
The inner nozzle (Stromdüse) needs to be changed when it wears out or you want to put in a different wire diameter. We have some spares in the office.
Suggested Reading
- know the difference between the different welding methods
