公开(公告)号：JPH11246922A

公开(公告)日：1999-09-14

申请号：JP30855998

申请日：1998-10-29

Applicant: ABB RESEARCH LTD

Inventor： ERNST PETER DR ,  UGGOWITZER PETER ,  SPEIDEL HANNES ,  SPEIDEL MARKUS

IPC: C22F1/00 ,  C21D7/10 ,  C21D8/00 ,  C22C1/00 ,  C22C30/00 ,  C22C38/00 ,  C22F1/10 ,  C22F1/11

Abstract: PROBLEM TO BE SOLVED: To provide a material having high strength and toughness even both in water and in an aqueous solution of halogen and also causing neither ferromagnetism nor stress corrosion cracking to high degree. SOLUTION: A chromium alloy, having a composition consisting of, by weight, 32-37% chromium, 28-36% nickel, =1,000 MPa) by this cold working.

公开(公告)号：JPH10265914A

公开(公告)日：1998-10-06

申请号：JP6829398

申请日：1998-03-18

Applicant: ABB RESEARCH LTD

Inventor： ERNST PETER DR ,  GOECMEN ALKAN ,  SPEIDEL MARKUS ,  UGGOWITZER PETER

IPC: C21D1/00 ,  C21D1/18 ,  C21D1/26 ,  C21D6/00 ,  C22C33/02 ,  C22C38/00 ,  C22C38/24 ,  C22C38/30 ,  C22C38/58

Abstract: PROBLEM TO BE SOLVED: To provide a perfectly martensitic heat treated steel for use in the field of an electric power plant. SOLUTION: This heat treated steel has a composition which consists, essentially, of, by weight, 8-15% Cr,

公开(公告)号：DE19738671A1

公开(公告)日：1999-03-11

申请号：DE19738671

申请日：1997-09-04

Applicant: ABB RESEARCH LTD

Inventor： ERNST PETER DR ,  FRIED REINHARD ,  MEYLAN PIERRE

IPC: F01D11/02 ,  F01D11/12 ,  F16J15/44 ,  F02C7/28

Abstract: One or more sealing strips (18) are mounted on the rotary component (1). Opposite each strip is a wearing layer (17) on the fixed component (2), and from this a sealing strip (20) protrudes. The strips on the fixed component can alternate with those on the rotary one.

公开(公告)号：DE19614407A1

公开(公告)日：1997-10-16

申请号：DE19614407

申请日：1996-04-12

Applicant: ABB RESEARCH LTD

Inventor： ERNST PETER DR ,  UGGOWITZER PETER J PROF DR ,  SPEIDEL MARKUS O PROF DR DR ,  STEINS REINER

IPC: C21D6/00 ,  C22C38/00 ,  C22C38/52 ,  C22C38/58 ,  C22C38/18 ,  C22C38/22 ,  C22C38/38 ,  C22C38/40 ,  C22C38/46

Abstract: This invention concerns a martensitic-austentitic steel consisting essentially (in wt%) of: 8 to 15 % chromium, 0.5 to 2.5 % molybdenum, up to 2 % tungsten, 4 to 10 % cobalt, 0.5 to 6 % nickel, 2.5 to 8 % manganese, 0.1 to 1.0 % vanadium, 0.05 to 0,25 % nitrogen, up to 0.2 % carbon, the rest being iron with impurities. This martensitic-austentitic steel can be used, in particular, as material for rotors or rotor disks in gas turbines operating at temperatures above 450 DEG C. The adjustment of the two phase martensitic-austentitic structure is done by heat treatment of the solution annealed and quenched steel structure in a temperature range between 550 DEG C and 650 DEG C.

公开(公告)号：DE19505389A1

公开(公告)日：1996-08-22

申请号：DE19505389

申请日：1995-02-17

Applicant: ABB RESEARCH LTD

Inventor： ERNST PETER DR ,  RHYNER JAKOB DR

IPC: F01D5/26 ,  F01D9/00 ,  F01D5/16 ,  F01D5/22

Abstract: A ring (4) of pref. Sm-Co magnetic material recessed in a housing (5) of austenitic steel in the wall of the turbine casing (1) is divided into three sections (7a-7c) with alternate polarity of magnetisation. The end (8) of each blade (2) is covered with a plate (3) of approximately rhombic form from the radial aspect, with acute-angled edges parallel to the direction of rotation. The plate is mfd. advantageously of Al whose good electrical conductivity favours the induction of eddy currents and damping of vibrations.

公开(公告)号：DE4322083A1

公开(公告)日：1995-01-12

申请号：DE4322083

申请日：1993-07-02

Applicant: ABB RESEARCH LTD

Inventor： FRIED REINHARD ,  ERNST PETER DR

IPC: B22F3/10 ,  B22F3/16 ,  B22F5/04

Abstract: This method for the production of a moulding from a powder material comprises the following steps: a) introduction of the powder material into a rough mould, b) compaction of the material by mechanical tapping, c) presintering of the blank in the rough mould, d) removal of the blank from the rough mould, e) machining of the blank and f) final sintering of the blank to give the definitive moulding. The fully sintered moulding no longer requires to be finished. In this method, the effect of shrinkage during final sintering is kept small and this is advantageous.

公开(公告)号：DE19748205A1

公开(公告)日：1999-05-06

申请号：DE19748205

申请日：1997-10-31

Applicant: ABB RESEARCH LTD

Inventor： ERNST PETER DR ,  SPEIDEL MARKUS PROF DR ,  SPEIDEL HANNES ,  UGGOWITZER PETER PROF DR

IPC: C22F1/00 ,  C21D7/10 ,  C21D8/00 ,  C22C1/00 ,  C22C30/00 ,  C22C38/00 ,  C22F1/10 ,  C22F1/11 ,  C22C19/05

公开(公告)号：DE19712020A1

公开(公告)日：1998-09-24

申请号：DE19712020

申请日：1997-03-21

Applicant: ABB RESEARCH LTD

Inventor： ERNST PETER DR ,  UGGOWITZER PETER J PROF DR ,  SPEIDEL MARKUS O PROF DR DR ,  GOECMEN ALKAN

IPC: C21D1/00 ,  C21D1/18 ,  C21D1/26 ,  C21D6/00 ,  C22C33/02 ,  C22C38/00 ,  C22C38/24 ,  C22C38/30 ,  C22C38/58 ,  C22C38/40

Abstract: A novel fully martensitic hardenable steel has the composition (by wt.) 8-15% Cr, up to 15% Co, up to 4% Mn, up to 4% Ni, up to 8% Mo, up to 6% W, 0.5-1.5% V, up to 0.15% Nb, up to 0.04% Ti, up to 0.4% Ta, up to 0.02% Zr, up to 0.02% Hf, NOTGREATER 50 ppm B, up to 0.1% C, 0.12-0.25% N, balance Fe and impurities, the sum of Mn + Ni being less than 4% and the sum of Mo + W being less than 8%. Also claimed is a heat treatment process for the above steel, comprising solution annealing at 1150-1250 degrees C for 0.5-15 hrs., cooling to room temperature and then tempering at 600-820 degrees C for 0.5-25 hrs.

公开(公告)号：DE19504631A1

公开(公告)日：1996-08-14

申请号：DE19504631

申请日：1995-02-13

Applicant: ABB RESEARCH LTD

Inventor： ERNST PETER DR ,  FRIED REINHARD

IPC: F01D9/02 ,  F01D5/18 ,  F01D5/28 ,  F01D25/32

Abstract: Guide blade in which all the capillaries (11) of the porous cover (7) are filled with extracted fluid. A wall which maintains the negative pressure effect in the cavity (6) is formed by the porous cover and the fluid filled capillaries. The cover may be made from a high porosity sintered material using a Cr-Ni-steel base, an X20Cr Mo-steel base, a bronze base (CuSn10) or a low pressure plastic base. The cover is joined to the blade by soldering, welding, adhesion and/or a mechanical pressing.

公开(公告)号：ES2126374T3

公开(公告)日：1999-03-16

申请号：ES96810059

申请日：1996-01-29

Applicant: ABB RESEARCH LTD

Inventor： ERNST PETER DR ,  RHYNER JAKOB DR

IPC: F01D5/26 ,  F01D9/00

Abstract: A ring (4) of pref. Sm-Co magnetic material recessed in a housing (5) of austenitic steel in the wall of the turbine casing (1) is divided into three sections (7a-7c) with alternate polarity of magnetisation. The end (8) of each blade (2) is covered with a plate (3) of approximately rhombic form from the radial aspect, with acute-angled edges parallel to the direction of rotation. The plate is mfd. advantageously of Al whose good electrical conductivity favours the induction of eddy currents and damping of vibrations.