公开(公告)号：DE10009426A1

公开(公告)日：2001-08-30

申请号：DE10009426

申请日：2000-02-28

Applicant: SIEMENS AG

Inventor： BARNIKEL JOCHEN ,  REITZNER KARL UVE ,  SCHMITZ FRIEDHELM

IPC: C02F1/72 ,  C02F1/76 ,  C02F1/50

Abstract: In a process to treat drinking water, a water (5) supply (15) system (3) has an added biocide (11) into which an agent (21) is introduced to reduce the biocide (11). The reduction agent is especially an oxidation agent (21) which has a stronger biocidal action than does the biocide (11). The oxidation agent is especially hydrogen peroxide. An independent claim is included for a water (5) supply system (3) containing a biocide (11) agent, with a pipe (15) to an outlet (15). A reservoir (23) feeds (25) hydrogen peroxide (21) to the water pipe (15).

公开(公告)号：DE19536218A1

公开(公告)日：1997-04-03

申请号：DE19536218

申请日：1995-09-28

Applicant: SIEMENS AG

Inventor： SCHMITZ FRIEDHELM ,  WOJACZYK HANS-GUENTER

IPC: G01N3/20 ,  G01M5/00

Abstract: The method involves mechanical loading of the tested combustion chamber brick (19). The brick is supported in a tension-free condition by a pair of holders (2,6) adapted to the shape of the brick. The mechanical loading is provided by a defined force (F), exerted on the brick in the region between the holders. Preferably one of the holders (2) is fixed in position and the other is movable together with pressure elements (10,11), for matching the component size tolerance range and variations from the ideal shape.

公开(公告)号：DE58908611D1

公开(公告)日：1994-12-08

申请号：DE58908611

申请日：1989-08-10

Applicant: SIEMENS AG

Inventor： CZECH NORBERT ,  SCHMITZ FRIEDHELM

IPC: F01D5/28 ,  C22C19/00 ,  C22C30/00 ,  C23C4/08 ,  C23C14/16 ,  C23C30/00 ,  F23R3/42

公开(公告)号：AT110116T

公开(公告)日：1994-09-15

申请号：AT90106913

申请日：1990-04-11

Applicant: SIEMENS AG

Inventor： SCHMITZ FRIEDHELM

IPC: C21D9/50

公开(公告)号：DE3861836D1

公开(公告)日：1991-04-04

申请号：DE3861836

申请日：1988-07-25

Applicant: SIEMENS AG

Inventor： SCHMITZ FRIEDHELM

IPC: B21D39/06 ,  F16L41/00 ,  F16L41/08 ,  F28F1/00 ,  F28F9/16 ,  F28F9/18 ,  F28F21/08

公开(公告)号：DE3766507D1

公开(公告)日：1991-01-17

申请号：DE3766507

申请日：1987-01-09

Applicant: SIEMENS AG

Inventor： SCHMITZ FRIEDHELM

IPC: C21D9/08 ,  C21D6/00 ,  C21D9/50 ,  C23C8/26

Abstract: These pipes (1) of austenitic, ferritic or austenitic-ferritic non- rusting steels are annealed after the longitudinal seam (2) has been welded. In the process according to the invention, the pipes (1) are only partially solution-annealed in the region of the weld seam (2) and of the heat-affected zone (3) or in a region (4) going slightly beyond the former. This allows even annealing temperatures of, for example, above 1200 DEG C and long holding times, whereby optimised solution-annealing and a better equalisation of segregations of the corrosion resistance-determining elements chromium and molybdenum in the region of the weld seam can be achieved. The only partial heating of the weld seam, for example by means of focused infrared emitters, prevents deformation of the pipes under the action of gravity during the annealing, in spite of the high annealing temperature. As a result, the corrosion resistance of the weld seam (3) can approach the value of the base material. Defined alloying with nitrogen from the surrounding atmosphere can further improve the corrosion resistance. Production of high-quality thin-walled pipes which can be tested for damage is also facilitated.

公开(公告)号：DE3913973A1

公开(公告)日：1990-10-31

申请号：DE3913973

申请日：1989-04-27

Applicant: SIEMENS AG

Inventor： SCHMITZ FRIEDHELM

IPC: C21D9/50

公开(公告)号：ES2640219T3

公开(公告)日：2017-11-02

申请号：ES11790581

申请日：2011-11-22

Applicant: SIEMENS AG

Inventor： SCHMITZ FRIEDHELM ,  STAMM WERNER

IPC: C22C30/00 ,  B32B15/01 ,  C22C19/05 ,  C23C4/073

Abstract: Aleación que contiene los siguientes elementos (datos en % en peso): 24% - 26% 5 de cobalto (Co), 12% - 14% de cromo (Cr), 10% - 12% de aluminio (Al), 0,2% - 0,5%, al menos un elemento del grupo compuesto por escandio y los elementos de las tierras raras, 0,3% - 3% de tantalio (Ta), el resto de níquel.

公开(公告)号：DE502004006615D1

公开(公告)日：2008-04-30

申请号：DE502004006615

申请日：2004-12-01

Applicant: SIEMENS AG

Inventor： SCHMITZ FRIEDHELM ,  WIEGHARDT KAI

IPC: C22C38/18 ,  C23C4/08 ,  C23C28/00 ,  C23C30/00

Abstract: The composition of the protective layer, expressed in wt% is: chromium 11.5-20, silicon 0.3-1.5 and aluminum 0.0-1.0. The remainder is iron and/or cobalt and/or nickel together with manufacturing impurities. Further preferred compositions are provided.

公开(公告)号：ES2096943T3

公开(公告)日：1997-03-16

申请号：ES93920767

申请日：1993-09-17

Applicant: SIEMENS AG

Inventor： SCHMITZ FRIEDHELM

IPC: C25D11/04 ,  C25D3/44 ,  C25D3/56 ,  C25D5/26 ,  C25D5/50 ,  F01D5/28

Abstract: A method and a coating are provided for attaining protection of a substrate being formed of chromium steel for a component of a turbomachine, against at least one of corrosive and erosive attack at a temperature up to approximately 500 DEG C. An aluminum-containing metal coating is applied to the substrate. At least the surface of the metal coating is hardened or age-hardened to form a protective coating containing aluminum.