Search results
40 to 50% Nickel-Iron (PERMENORM, MEGAPERM, ULTRAVAC...)
/products/soft-magnetic-materials-and-stamped-parts/40-to-50-nickel-iron
These high permeability materials differ mainly in the level of permeability. Permeability increases in the series from the standard grade MUMETALL to the highest grade ULTRAPERM 250. VACOPERM 100 D is a solid material.
Information for Manufactured Articles
/company/quality-and-safety/information-for-manufactured-articles
The semi-finished and finished products manufactured at VAC are classified as 'articles' under the REACH Regulation (EC) No. 1907/2006. No legal obligation to produce and distribute a safety data sheet applies to products that are 'articles' as understood by REACH. The comprehensive information typically contained in a safety data sheets is summarized in the alloy-specific "Information sheets for articles". We expressly point out that these information sheets are voluntarily produced data sheets to which the requirements of the REACH Regulation do not apply. Information sheets are available in two languages (German/English). Information sheets for manufactured articles for the US market are available in English.
Positioning Sensors
/markets/e-mobility-automotive/positioning-sensors
These high permeability materials differ mainly in the level of permeability. Permeability increases in the series from the standard grade MUMETALL® to the highest grade ULTRAPERM® 250.
VACOPERM® 100 D is solid material.
MUMETALL and VACOPERM 100 are copper containing alloys with the magnetostriction constant λ111 adjusted to zero. MUMETALL is intended for soft magnetic cores or parts. VACOPERM 100 and the different grades of ULTRAPERM have the same alloy composition. They differ in the level of initial and maximum permeability, rising from VACOPERM 100 up to the superior grade ULTRAPERM 250.
History
In 1927, the first soft magnetic nickel-iron alloy was developed under the name MUMETALL.
This alloy is still one of VACUUMSCHMELZE's best-selling alloys today. MUMETALL is used in components for electrical communications, radio receivers, but also for magnetic shielding, current sensors and current transformers.
Soft Magnetic Materials and Stamped Parts
/products/soft-magnetic-materials-and-stamped-parts
MUMETALL®, VACOPERM® 100, ULTRAVAC® 80, and CRYOPERM® exhibit extremely low coercivities and highest permeabilities and are therefore often the first choice for magnetic shielding and many other sophisticated applications.
77 to 82% Nickel-Iron Alloys
/products/soft-magnetic-materials-and-stamped-parts/77-to-82-nickel-iron
| Alloy | Mass Density ρ [g/cm3] |
Electrical Resistivity ρel [μΩm] |
Curie Temperature TC [°C] |
Thermal Conductivity (25 °C) λ [W/mK] |
|---|---|---|---|---|
| MUMETALL | 8.7 | 0.6 | 400 | 18 - 20 |
| VACOPERM 100 | 8.7 | 0.6 | 360 | 18 - 20 |
| ULTRAVAC 80 | 8.7 | 0.6 | 370 | 18 - 20 |
| ULTRAVAC 816 | 8.7 | 0.6 | 360 | 18 - 20 |
Lamination Stacks
/products/soft-magnetic-materials-and-stamped-parts/lamination-stacks
| Alloy | Alloy Group | Typical Thickness | max. Outer Diameter Stack (w/o segmentation) |
Available Stacking Technologies |
|||
|---|---|---|---|---|---|---|---|
| t [mm] | ØO | VACSTACK (wire EDM) | Laser-cutting, gluing and/or welding | Stamping single laminations & gluing and/or welding | Interlocking | ||
| VACOFLUX® 48 | cobalt-iron | 0.055/0.1 | 220 | x | - | - | - |
| VACODUR® 49 | cobalt-iron | 0.1/0.2/0.35 | 320 | x | x | x | x(0.35 mm) |
| VACODUR® S plus | cobalt-iron | on request | 260 | x | x | x | x(0.35 mm) |
| VACOFLUX® X1 | cobalt-iron | 0.2 | 280 | x | x | x | |
| PERMENORM® 5000 V5 | nickel-iron | 0.2/0.35/0.5 | x | x | x | x(0.35 mm) | |
| MEGAPERM® 40L | nickel-iron | 0.1/0.2 | x | x | x | x(0.35 mm) | |
| ULTRAVAC® 44 V6 | nickel-iron | 0.1/0.2 | x | x | x | x(0.35 mm) | |
| MUMETALL® | nickel-iron | 0.2/0.35/0.5 | x | x | x | x(0.35 mm) | |
In Search of the Neutron Dipole
Researchers at the Swiss Paul Scherrer Institute are on the trail of the electric dipole moment of the neutron. For this, VAC installed a walk-in shielded room with unique properties.
In Search of the Neutron Dipole
Perfect Magnetically Shielded Room
Researchers at the Paul Scherrer Institute (PSI), located in the Swiss canton of Aargovia, are on the trail of the electric dipole moment of the neutron. For their measurements, VACUUMSCHMELZE GmbH & Co. KG (VAC) recently installed a walk-in shielding room at PSI. This room has the smallest magnetic field and the best shielding against electromagnetic fields in the world.
The scientific experiment partly addresses fundamental physics questions: the physicists want to find a neutron electric dipole moment (nEDM). The search for the nEDM is very difficult, since it must be unimaginably small (smaller than 1.8 x 10-26 e-cm, according to current knowledge). Nevertheless, the effort is worthwhile: the nEDM can provide the answer to the question why there is almost no antimatter in the visible universe.
VAC is not only characterized by the extraordinary know-how in the development and construction of the shielding booths, the used high permeable alloys are completely manufactured in-house. MUMETALL® is characterized to possess the highest permeability of all crystalline materials thus is ideally suited to magnetic shielding. The MSR (Magnetically Shielded Room) for PSI is a seven-shell cabin with external dimensions of 5 x 5 x 4.8 m. A total of 80 feedthroughs with diameters ranging from 55 - 220 mm were placed. The inner booth has a usable space of approx. 2.9 x 2.9 x 2.9 m and has three doors, the largest of which measures 2.6 x 2.6 m. All doors have a mass in the ton range, and a total of about 25 t of the highly permeable MUMETALL material was used.
"We have built the world's best shielding room of this size," says Bernhard Lauss, project manager of the experiment: "We shield the static magnetic field from the outside by a factor of a hundred thousand, and the shielding increases to over a billion times even at very low frequencies. And Klaus Kirch, head of the Laboratory for Particle Physics at PSI and professor at ETH Zurich adds: "There are arrangements with an even higher shielding factor, but they are much smaller, too small to carry out our experiment. Among the walk-in facilities, we have by far the weakest magnetic field realized anywhere in the world." Inside the chamber, the researchers measure a residual magnetic field of less than 150 picotesla (10-12 tesla). By comparison, the Earth's magnetic field is several hundred thousand times stronger at 30 to 60 microtesla (10-6 tesla).
Photo: Courtesy of Paul Scherrer Institute/Markus Fischer
Your Contact Person
We are pleased to assist you with any questions, ideas, and comments.
MSR
/products/Advanced-Technologies/MSR
- As the world market leader for special magnetic materials, we are able to produce alloys such as Mumetall or Vacoperm in the highest quality ourselves: The foundation for the best magnetics is laid in our vacuum melting furnaces.
- From melt to sheet: We are able to produce strip and sheet from our own melts in a quality-controlled process.
- We are one of the few manufacturers to have our own equipment for optimum magnetic final annealing in a hydrogen atmosphere. Only then do the materials develop their full magnetic shielding effect.
MUMETALL - Information Sheets
/company/quality-and-safety/information-for-manufactured-articles/mumetall
MUMETALL - Information Sheets
/company/quality-and-safety/old-information-for-manufactured-articles-inclmagnets/mumetall
Energy Conversion
/markets/energy-generation-management/energy-conversion
These high permeability materials differ mainly in the level of permeability. Permeability increases in the series from the standard grade MUMETALL® to the highest grade ULTRAPERM® 250. VACOPERM® 100 D is a solid material.
Magnetic Shielding
/markets/energy-generation-management/magnetic-shielding
These high permeability materials differ mainly in the level of permeability. Permeability increases in the series from the standard grade MUMETALL® to the highest grade ULTRAPERM® 250.
VACOPERM® 100 D is solid material.
MUMETALL and VACOPERM 100 are copper containing alloys with the magnetostriction constant λ111 adjusted to zero. MUMETALL is intended for soft magnetic cores or parts. VACOPERM 100 and the different grades of ULTRAPERM have the same alloy composition. They differ in the level of initial and maximum permeability, rising from VACOPERM 100 up to the superior grade ULTRAPERM 250.
Magnetic Shielding
/markets/scientific-medical/magnetic-shielding
These high permeability materials differ mainly in the level of permeability. Permeability increases in the series from the standard grade MUMETALL® to the highest grade ULTRAPERM® 250.
VACOPERM® 100 D is solid material.
MUMETALL and VACOPERM 100 are copper containing alloys with the magnetostriction constant λ111 adjusted to zero. MUMETALL is intended for soft magnetic cores or parts. VACOPERM 100 and the different grades of ULTRAPERM have the same alloy composition. They differ in the level of initial and maximum permeability, rising from VACOPERM 100 up to the superior grade ULTRAPERM 250.
Positioning Sensors
/markets/smart-industrial-solutions/positioning-sensors
These high permeability materials differ mainly in the level of permeability. Permeability increases in the series from the standard grade MUMETALL® to the highest grade ULTRAPERM® 250.
VACOPERM® 100 D is solid material.
MUMETALL and VACOPERM 100 are copper containing alloys with the magnetostriction constant λ111 adjusted to zero. MUMETALL is intended for soft magnetic cores or parts. VACOPERM 100 and the different grades of ULTRAPERM have the same alloy composition. They differ in the level of initial and maximum permeability, rising from VACOPERM 100 up to the superior grade ULTRAPERM 250.
Unspoilt environment
VAC has already built up more than 150 cabins in almost 40 years and thus has unmatched experience in the conception, planning and execution of shielding cabins for the most diverse requirements.
Unspoilt environment
Magnetically Shielded Rooms (MSR) are widely used in basic and applied research. They attenuate the influence of low-frequency interference caused, for example, by railway lines, elevators, vehicles, transformers or radio signals. VACUUMSCHMELZE (VAC) has already built up more than 150 cabins in almost 40 years and thus has unmatched experience in the conception, planning and execution of shielding cabins for the most diverse requirements.
In addition to the three standard variants Basic, Advanced and Premium, highend customer-specific designs can be realized. The right solution for all requirements: The Basic cabin is weight- and costoptimized and suitable for installation in upper levels. The two-layer Advanced cabin also shields at higher frequencies and the Premium cabin with an additional MUMETALL® layer is used for above-average magnetic environmental noises.
The full vertical integration from melting of the alloy to the assembly of the finished cabin out of one hand has proven to be a key success factor to ensure consistently the best magnetic properties and most efficient project management.
The team of shielding specialists will be present at BIOMAG 2018 in Philadelphia/PA from August 26 to 30.
„The latest trend in the use of optically pumped magnetometers requires uniform low residual field within the Magnetically Shielded Room. Our rooms provide the optimum precondition for this kind of application.” says Lela Bauer, Product Management specialist at VAC.
Your Contact Person
We are pleased to assist you with any questions, ideas, and comments.
In Search of the Neutron Dipole
Researchers at the Swiss Paul Scherrer Institute are on the trail of the electric dipole moment of the neutron. For this, VAC installed a walk-in shielded room with unique properties.
In Search of the Neutron Dipole
Perfect Magnetically Shielded Room
Researchers at the Paul Scherrer Institute (PSI), located in the Swiss canton of Aargovia, are on the trail of the electric dipole moment of the neutron. For their measurements, VACUUMSCHMELZE GmbH & Co. KG (VAC) recently installed a walk-in shielding room at PSI. This room has the smallest magnetic field and the best shielding against electromagnetic fields in the world.
The scientific experiment partly addresses fundamental physics questions: the physicists want to find a neutron electric dipole moment (nEDM). The search for the nEDM is very difficult, since it must be unimaginably small (smaller than 1.8 x 10-26 e-cm, according to current knowledge). Nevertheless, the effort is worthwhile: the nEDM can provide the answer to the question why there is almost no antimatter in the visible universe.
VAC is not only characterized by the extraordinary know-how in the development and construction of the shielding booths, the used high permeable alloys are completely manufactured in-house. MUMETALL® is characterized to possess the highest permeability of all crystalline materials thus is ideally suited to magnetic shielding. The MSR (Magnetically Shielded Room) for PSI is a seven-shell cabin with external dimensions of 5 x 5 x 4.8 m. A total of 80 feedthroughs with diameters ranging from 55 - 220 mm were placed. The inner booth has a usable space of approx. 2.9 x 2.9 x 2.9 m and has three doors, the largest of which measures 2.6 x 2.6 m. All doors have a mass in the ton range, and a total of about 25 t of the highly permeable MUMETALL material was used.
"We have built the world's best shielding room of this size," says Bernhard Lauss, project manager of the experiment: "We shield the static magnetic field from the outside by a factor of a hundred thousand, and the shielding increases to over a billion times even at very low frequencies. And Klaus Kirch, head of the Laboratory for Particle Physics at PSI and professor at ETH Zurich adds: "There are arrangements with an even higher shielding factor, but they are much smaller, too small to carry out our experiment. Among the walk-in facilities, we have by far the weakest magnetic field realized anywhere in the world." Inside the chamber, the researchers measure a residual magnetic field of less than 150 picotesla (10-12 tesla). By comparison, the Earth's magnetic field is several hundred thousand times stronger at 30 to 60 microtesla (10-6 tesla).
Photo: Courtesy of Paul Scherrer Institute/Markus Fischer
Your Contact Person
We are pleased to assist you with any questions, ideas, and comments.
