Specialist in vacuum brazing as a service: brazing and high-temperature brazing, heat treatment, wear protection.
VLT Vakuumlöttechnik GmbH
New on Amplifa
About VLT Vakuumlöttechnik
VLT Vakuumlöttechnik GmbH specializes in vacuum brazing technology as a contract service and supports customers from technical consulting through to the finished product. The company offers brazing and high-temperature brazing in a vacuum furnace, leak testing for vacuum-brazed assemblies, tempering processes in conjunction with brazing processes, heat treatments under vacuum and/or protective gas, and hardness testing (Rockwell/Vickers) before or after brazing and tempering processes. The process is particularly suitable for designs with multiple joints, low-distortion assemblies and the joining of different materials – from structural steels and high-alloy stainless steels to non-ferrous metals such as copper, titanium and nickel, through to carbides, ceramics, superalloys and cutting materials such as diamond and CBN. In the field of wear protection, carbide and hard-material coatings are brazed onto carrier materials such as steel. Business fields include mould making, mechanical and apparatus engineering, wear protection (including road construction, tool making and mill construction, plastic granulation technology, agriculture, conveying systems) as well as the defence industry. The company also sees itself as a development partner for brazing projects and series parts.
- Processes
- Vacuum brazing (brazing and high-temperature brazing in the vacuum furnace), Leak testing for vacuum-brazed assemblies, Tempering processes in conjunction with brazing processes, Heat treatments under vacuum and/or protective gas, Hardness testing before or after the brazing and/or tempering process (Rockwell/Vickers), Technical consulting regarding design, brazing-suitable design, material and brazing alloy selection, Brazing on of coatings made of carbides or other hard materials onto carrier material, Brazing and high-temperature brazing in the vacuum furnace (vacuum brazing as a service)
- Materials
- Structural steels, Stainless steels / high-alloy stainless steels, Carbides, Copper, Titanium, Nickel, Superalloys, Highly alloyed cold- and hot-work steels
- Certificates
- Leak testing, Hardness testing (Rockwell/Vickers)
- Industries
- Mould making, Mechanical and apparatus engineering, Wear protection, Defence industry, Wear protection (including road construction, tool making, mill construction,
- 01
Technical consulting (design, brazing-suitable design, material and
- 02
Brazing and high-temperature brazing in the vacuum furnace
- 03
Tempering / heat treatment under vacuum or protective gas
- 04
Hardness testing (Rockwell/Vickers)
- 05
Leak testing
Materials & Processes
Structural steels
Brazed base materials for general constructions and carrier material in wear protection.
High-alloy stainless steels
Corrosion-resistant joining partners for vacuum-brazed assemblies.
Carbides
Material for wear-resistant coatings and tool inserts, brazed onto carrier material.
Copper
Non-ferrous metal that can be combined with other materials by vacuum brazing.
Titanium
Lightweight material for special joints in the vacuum furnace.
Nickel
Non-ferrous metal and base of many high-temperature brazing alloys.
Superalloys & highly alloyed cold- and hot-work steels
High-performance materials, e.g. for mould making and apparatus engineering.
Ceramics
Brazable special material for combined ceramic-metal assemblies.
Cutting materials (CBN/pCBN, diamond: MKD, PKD, CVD)
Brazable in the vacuum furnace for tools with the highest requirements.
Ferrotitanit
Special material for wear-resistant tools and machine parts.
Tool and high-speed steels
Base material for heat treatments under vacuum and/or protective gas.
Locations
Manufacturing
- Vacuum brazing / vacuum furnace
Components & Applications
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Vacuum brazing (brazing and high-temperature brazing in the vacuum furnace)Joining | – | – | – | – | Structural steels, Stainless steels, Carbides, Non-ferrous metals (copper, titanium, nickel), Superalloys, highly alloyed cold- and hot-work steels, Ceramics, Cutting materials (CBN, diamond, PKD, pCBN, MKD, CVD), Ferrotitanit |
| Leak testing for vacuum-brazed assembliesTesting | – | – | – | – | – |
| Tempering processes in conjunction with brazing processesHeat treatment | – | – | – | – | – |
| Heat treatments under vacuum and/or protective gasHeat treatment | – | – | – | – | Tool and high-speed steels |
| Hardness testing before or after the brazing and/or tempering process (Rockwell/Vickers)Testing | – | – | – | – | – |
| Technical consulting regarding design, brazing-suitable design, material and brazing alloy selectionEngineering | – | – | – | – | – |
| Brazing on of coatings made of carbides or other hard materials onto carrier materialJoining | – | – | – | – | Carbide, Steel |
1 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Vacuum brazing / vacuum furnace | – | – | – | – | – |
Additional services
Quality & Testing
Testing includes hardness testing (Rockwell/Vickers) before or after brazing and tempering processes as well as leak testing of vacuum-brazed assemblies. Programmable vacuum furnaces ensure high process reproducibility.
| Evidence | Company |
|---|---|
| Leak testing | |
| Hardness testing (Rockwell/Vickers) |