METALLURGY HEAT TREATMENT >

ALD Vacuum Technologies Hanau, Germany >

3 History Know-How Is Our Business 6 Worldwide Customer Sales & Service 7 8 > Vacuum Induction Melting and Casting (VIM/VIDP) 10 Electroslag Remelting (ESR) 22 Vacuum Arc Remelting (VAR) 30 Electron Beam Melting (EB) 36 Vacuum Investment Casting (VIM-IC) 40 Powder Metallurgy 46 Vacuum Turbine Blade Coating (EB/PVD) 54 Solar Silicon Melting and Crystallization Technology 62 Hot Isothermal Forging (HIF) 64 Induction Heated Quartz Tube Furnaces (IWQ) 66 High Vacuum Resistances Furnaces (WI) 68 70 > Vacuum Hardening,Tempering 74 Vacuum Case Hardening 80 Sintering 88 92 >

HERAEUS enters the field of vacuum metallurgy when it succeeds in melting chromium-nickel alloys under vacuum conditions. > DEGUSSA AG ac q uires all shares of Leybold-Heraeus GmbH, which is then renamed LEYBOLD AG. > De g ussa s p ins off its Durferrit business including Degussa Industrial Furnaces, while Leybold AG sheds its vacuum metallurgy division. The two spin-offs merge to form LEYBOLD DURFERRIT GmbH. LEYBOLD starts manufacturin g industrial vacuum equipment. > DEGUSSA decides to build vacuum furnaces. > The vacuum metallur gy and vacuum heat treatment businesses become part of the newly...

On Au g ust 3, 1998, Safe g uard International Fund, L.P., Wayne, PA, USA acquires all shares of ALD Vacuum Technologies. > Introduction of new heat treatment system, type ModulTherm > . Coo p eration with AFC Holcroft, Wixom, Michigan. ALD Vacuum Technolo g ies enters the Own & Operate Business. > 2 > nd US Own & O p erate factor y started in Port Huron, Michigan. Decision about Own & O p erate in USA. ALD enters into the vacuum coating business by acquiring all EB/PVD activities from Leybold AG. > ALD Polska, another p roduction site for ALD, started in Czosnow, Poland. > Start u p of the Own...

ALD Vacuum Technologies supplies equipment and systems for thermal and thermochemical treatment of metallic materials in solid and liquid form. The company`s competence consists on the one hand of its mastery in vacuum process technology and on the other hand of its know-how in designing custom-tailored system solutions for use in this field. ALD is noted for its superb know-how basis, high investments in research and development and its strategic alliances. Close collaborations with well-known manufacturers in operator companies have stren g thened its position as a supplier of key technologies...

7 ALD plants are built for operation around the clock, seven days per week. As and when the need for service arises, a global network is available to send urgently needed spare parts or an experienced service technician. ALD has subsidiaries in 6 countries worldwide and representations in many others. Our marketing and service network and replacement part stocks at strategic locations enable us to react at short notice. Additionally, our headquarters in Germany operate a customer support center with dozens of experts who assist whenever special know-how is required. ALD services include professional...

The Development of New Vacuum Processes for Metallurgy Drives Technological Advances in Future Markets >

Vacuum metallurgy for the airplane of the future. Concealed behind the technical term, Ԅvacuum melting and controlled solidification" as well as electron beam physical vapor deposition" are path-breaking technologies for the energy saving airplane of the future. These vacuum metallurgical processes allow large-scale mass production of turbine blades, which reduce fuel consumption by up to 30% and emissions by 15% and more. >

Vacuum Induction Melting (VIM/VIDP) Furnaces for Charge Weights from 1 kg up to 30 tons >

11 Vacuum induction melting (VIM) is one of the most commonly used processes in secondary metallur g y applied for refining treatment in the liquid state and adjustment of chemical composition and temperature. To achieve the increasing quality demands on the resulting material and at the same time save raw materials such as alloying elements due to higher yield; and save energy, Vacuum induction melting makes possible effective degassing of the melt and extra- ordinarily precise adjustment of alloy composition, since the temperature, vacuum, gas atmosphere, pressure and material transport (e.g.,...

2 -1 to 10 > -4 mbar. The following methods can be easily combined with the VIM system to produce clean melts: Removal of undesired trace elements with high vapour pressures; Removal of dissolved gases e.g. oxygen, hydrogen, nitrogen; Adjustment of precise and homogeneous alloy-composition and melt temperature. Depending on the product and metallurgical process, vacuum levels during the refining phase are in a range of 10 For this reason, metallurgical operations, such as dephosphorization and desulphurization, are limited. VIM metallurgy is primarily aimed at the pressure-dependent reactions,...

VIM Application Advantages The following advantages have a decisive influence on the high demand for ALD's vacuum induction melting furnaces in metal production: The casting weight in VIM furnaces by Flexibility due to different batch size; ALD can vary from 1 kg to 30 tons or Fast change of program for different more, depending on whether the furnace types of steels and alloys; is being used for precision casting or for Low losses of alloying elements the production of ingots or electrodes by oxidation; for further processing. A large number of Achievement of very close optional items allows...

4 VIM Chamber Furnaces Product Line ALD offers a complete product line of VIM furnaces with charge weights varying from 1 kg up to 30 tons for the making of: The product line is based on the chambertype VIM (Vacuum Induction Melting) or on the compact VIM-VIDP furnace design. Depending on production and economical requirements, the VIM furnace technology can be expanded by different implements. These are: VIM 02-4000 Semi-finished products, such as: - Wires, strips, rods - Ingots and electrodes - Targets - Structural parts - Powders by the following procedures: acuum I nduction M elting in the...