Abstract
The article presents research aimed at developing a PTA braze-welding technology for producing absorber connections between tubes and copper foil with EcoBraz 38102 self-fusible brazing solder in the form of wire 1 mm in diameter. Braze-welding process was carried out by means of two techniques of braze welding of flat copper foil to a tube, while the foil had a 0 - 1.5 mm wide gap: a connection with a butt joint made by braze welding with simultaneous stamping of a semi-circular channel in the copper foil (the channel diameter equal to the tube diameter); and a connection with two braze-welded fillet joints. Metallographic tests, hardness measurement, static tensile test and thermal conduction efficiency test were performed to determine the properties of prepared connections. It was demonstrated that there exists a field of PTA braze-welding parameters which assures high quality of absorber connections between tubes and copper foil.
| Original language | English |
|---|---|
| Pages (from-to) | 43-49 |
| Number of pages | 7 |
| Journal | Welding International |
| Volume | 23 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2009 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
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