Special processes

**Heat treating**
Activities	Equipment	Base Parameters	Note
HT of steels in air furnaces, HT of tool steels - quenched in oil, water or air	chamber furnace DEMAG shaft furnace ZEZ with forced air	hardening:max.temp.900C max.workspace:400x500x750 max weight of piece: 10 kg tempering:max.temp.650C max.workspace:dia 650-700 max weight of piece: 10 kg
HT of martensitic stainless steels in vacuum	vacuum furnace KOPP VG700L air furnace DEGUSSA VKU	hardening: N2, Ar max.work.temp.1230C max.workspace:700x500x1100 max weight of load: 300 kg deep freezing -80C "Dry ice", small parts only tempering: max.temp.700C max.workspace:550x350x1100 max weight of load: 300 kg	NADCAP cert AMS 2750 RPS 230
HT of austenitic stainless steels in vacuum	vacuum furnace KOPP VG700L	annealing, stress relieving max.work.temp.1230C max.workspace:700x500x1100 max weight of load: 300 kg	NADCAP cert AMS 2750 RPS 356
HT - ageing of precipitation steels and Ni/Co alloys in vacuum	vacuum furnace KOPP VG700L air furnace DEGUSSA VKU	hardening:max.temp.1230C max.workspace:700x500x1100 max weight of load: 300 kg tempering: max.temp.700C max.workspace:550x350x1100 max weight of load: 300 kg	NADCAP cert AMS 2750 RPS 574
HT of tool steels, quenched in gas	vacuum furnace KOPP VG700L air furnace DEGUSSA VKU	hardening: N2, Ar max.work.temp.1230C max.workspace:700x500x1100 max weight of load: 300 kg tempering: max.temp.700C max.workspace:550x350x1100 max weight of load: 300 kg
Annealing of Ti alloys in vacuum	vacuum furnace KOPP VG700L	max.work.temp.1230C max.workspace:700x500x1100 max weight of load: 300 kg	NADCAP cert AMS 2750 RPS 323
Nitriding in gas	Nitriding set RSHRM	max.work.temp.650C max.workspace:dia 600 - 600 palatine fixture
HT of aluminium alloys	shaft furnaces ZEZ with forced air	max.work.temp.600C max.workspace:dia 1200 - 600 palatine fixture
HT of non-ferrous metals	chamber furnace DEMAG shaft furnace ZEZ with forced air	max.work.temp.900C max.workspace:400x500x750 max weight of piece: 10 kg max.work.temp.650C max.workspace:dia 650-700 max weight of piece: 10 kg

Contact person: Karel Holcat: +420 251043382

**Surface Treatment and Painting**
Activities	Equipment	Base Parameters	Note
Anodising in Sulphur Acid	line of tanks	Max.length: 1000 mm Max.depth: 700 mm Max. width: 400 mm	NADCAP cert DMP 12-031
Anodising in Chromic Acid	line of tanks	Max.length: 1000 mm Max.depth: 700 mm Max. width: 400 mm
Silver Plating	line of tanks	Max.length: 300 mm Max.depth: 300 mm Max. width: 150 mm	NADCAP cert RPS 168
Cadmium Plating	line of tanks	Max.length: 300 mm Max.depth: 300 mm Max. width: 200 mm
Macro-etch of Ni alloys	line of tanks	Max.length: 300 mm Max.depth: 300 mm Max. width: 300 mm
Blackening	line of tanks	Max.length: 1000 mm Max.depth: 400 mm Max. width: 400 mm
Passivation of Stainless Steels	line of tanks	Max.length: 200 mm Max.depth: 200 mm Max. width: 80 mm
Passivation of Titanium Alloys	line of tanks	Max.length: 300 mm Max.depth: 300 mm Max. width: 300 mm
Cyanide	line of tanks	Max.length: 300 mm Max.depth: 300 mm Max. width: 300 mm
Painting - Aluminium Stoved Paints	spray cabin	Max.workspace:600x600x600 Max.weight of piece:15 kg	NADCAP cert RPS 661
Painting - Sacrificial Coats	spray cabin	Max.workspace:600x600x600 Max.weight of piece:15 kg	NADCAP cert RPS 666

Contact person: Jaromir Kurka: +420 251042345, mobile: +420724106981

**Welding & Brazing**
Activities	Equipment	Base Parameters	Note
Electron Beam Welding	LARA 52-2 TECHMETA	Power:15kW (250mA,60kV) Max. weld length in X:1000 mm, in Y:500 mm Rotable table D:900 mm, inclining of Gun Welding materials: CrNi steel, Ti, Al, Ni CNC control, without filler	Preparation for NADCAP
Fusion Welding	MIGATRONIC COMMANDER 400 AC/DC	Welding material: steels, CrNi steels, Ni, Ti, Al	Preparation for NADCAP RPS 184
Arc welding with Shethed Electrode	MIGATRONIC COMMANDER 400 AC/DC	Welding material: steels
Brazing by Ni-solder in Vacuum	Vacuum furnace VG700L	Max.brazing.temp:1230 C Max. workspace:650x500x1100 Max.weight of piece:300 kg

Contact Person: Jiri Novotny: +420 251045309

**Electro Discharge Machinning (EDM)**
Activities	Equipment	Base Parameters	Note
EDM sinkering	CNC Sinkering Machine AEG ELOTHERM Sinkering Machine Wickman EDM1	Max.piece: 200x200x200 mm Machinned Materials: Stainless Steel, Ti, Ni-alloys	Preparation for NADCAP RPS 418

Contact Person: Jiri Novotny: +420 251045309

News

09.01.2008 14:05

Certification of Integrated Management Systems in WALTER ENGINES a.s. is accomplished

WALTER ENGINES a.s. has successfully finished the three-year process of implementation and certification of Integrated Management Systems of Quality, Environment, and Occupation health & safety according to the requirements of the most demanding international standards.

02.11.2007 19:53

New Prices

For deliveries after January 1, 2008, the prices according to the 2008 price list are applicable.

27.08.2007 16:06

General Electric Company To Acquire Walter Engines a.s.

General Electric Company (GE) has signed a definitive agreement to purchase the assets of Walter Engines a.s. based in Prague, the Czech Republic. The transaction, terms of which were not disclosed, will be completed upon receipt of various regulatory approvals and customary closing conditions.

11.04.2007 09:28

WALTER GROUP IS GROWING

FF Invest a.s. („FFI“), the 100% shareholder of Walter Engines a.s. („Walter Engines“) purchased company Prague Casting Services a.s. („PCS“). PCS is producing investment castings for aircraft and ground turbine engines and nuclear industry. PCS employs 75 people in Prague – Jinonice and last year reached sales 95 mil. CZK and after tax profit 7,2 mil. CZK.

14.12.2006 12:09

New web presentation

We have created for you a new Web presentation of our company. The site shows all the information you were used to up to know, with Client Zone providing updated Bulletin service. Extended was also section on WALTER ENGINES a.s. Quality Assurance with possibility of downloading of certificates.

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