-
公开(公告)号：JP2006225766A
公开(公告)日：2006-08-31
申请号：JP2006062859
申请日：2006-03-08
Applicant: HOEGANAES AB
Inventor： JANSSON PATRICIA
Abstract: PROBLEM TO BE SOLVED: To provide a method of compacting and heat-treating iron powders in order to obtain magnetic core components having improved soft magnetic properties. SOLUTION: The iron powder consists of fine particles which are insulated by a thin layer having a low phosphorous content. According to the invention, the compacted iron powder is subjected to heat treatment at a temperature between 350°C and 550°C. COPYRIGHT: (C)2006,JPO&NCIPI
-
公开(公告)号：KR977002566A
公开(公告)日：1997-05-13
申请号：KR19967005998
申请日：1996-10-25
Applicant: HOEGANAES AB
Inventor： JANSSON PATRICIA
CPC classification number: B22F1/02 , H01F1/24 , H01F1/26 , Y10T428/2991
Abstract: 본 발명은 개선된 연질 자성 특성을 가진 자성 코아 부품을 얻기 위해 열처리 철 분말과 가압에 관한 것이다. 철 분말은 낮은 인 함량을 가진 얇은 층에 의해 절연된 미세한 입자로 구성되어 있다. 본 발명에 따라, 압축된 철 분말은 350℃ 내지 550℃ 사이의 온도에서 열처리된다.
-
公开(公告)号：EP1899994A4
公开(公告)日：2010-09-22
申请号：EP06747915
申请日：2006-06-15
Applicant: HOEGANAES AB
Inventor： SKAARMAN BJOERN , YE ZHOU , JANSSON PATRICIA
CPC classification number: B22F3/02 , B22F1/0062 , B22F3/24 , B22F2003/241 , B22F2003/248 , B22F2998/00 , B22F2998/10 , B22F2999/00 , H01F1/14 , H01F1/24 , H01F1/33 , H01F3/08 , H01F27/255 , H01F41/0246 , Y10T428/12028 , B22F1/02 , B22F1/0003 , B22F3/1021 , B22F2201/00 , B22F2201/02 , B22F2201/10 , B22F2201/05
-
公开(公告)号：AU2006258301C1
公开(公告)日：2010-04-22
申请号：AU2006258301
申请日：2006-06-15
Applicant: HOEGANAES AB
Inventor： SKARMAN BJORN , JANSSON PATRICIA , YE ZHOU
Abstract: A process for the manufacture of soft magnetic composite components is provided comprising the steps of die compacting a powder composition comprising a mixture of soft magnetic, iron or iron-based powder, the core particles of which are surrounded by an electrically insulating, inorganic coating, and an organic lubricant in an amount of 0.05 to 1.5% by weight of the composition, the organic lubricant being free from metal and having a temperature of vaporisation less than the decomposition temperature of the coating; ejecting the compacted body from the die; heating the compacted body in a non-reducing atmosphere to a temperature above the vaporisation temperature of the lubricant and below the decomposition temperature of the inorganic coating for removing the lubricant from the compacted body, and subjecting the obtained body to heat treatment at a temperature between 300° and 600° in water vapour. The invention also concerns soft magnetic composite components having a transverse rupture strength of at least 100 MPa, a permeability of at least 700, and a core loss at 1 Tesla and 400 Hz of at most 70 W/kg.
-
公开(公告)号：AU2006258301A1
公开(公告)日：2006-12-21
申请号：AU2006258301
申请日：2006-06-15
Applicant: HOEGANAES AB
Inventor： SKARMAN BJORN , JANSSON PATRICIA , YE ZHOU
Abstract: A process for the manufacture of soft magnetic composite components is provided comprising the steps of die compacting a powder composition comprising a mixture of soft magnetic, iron or iron-based powder, the core particles of which are surrounded by an electrically insulating, inorganic coating, and an organic lubricant in an amount of 0.05 to 1.5% by weight of the composition, the organic lubricant being free from metal and having a temperature of vaporisation less than the decomposition temperature of the coating; ejecting the compacted body from the die; heating the compacted body in a non-reducing atmosphere to a temperature above the vaporisation temperature of the lubricant and below the decomposition temperature of the inorganic coating for removing the lubricant from the compacted body, and subjecting the obtained body to heat treatment at a temperature between 300° and 600° in water vapour. The invention also concerns soft magnetic composite components having a transverse rupture strength of at least 100 MPa, a permeability of at least 700, and a core loss at 1 Tesla and 400 Hz of at most 70 W/kg.
-
Patent Agency Ranking
公开(公告)号：MX220648B
公开(公告)日：2004-05-28
申请号：MX9806871
申请日：1998-08-24
Applicant: HOEGANAES AB
Inventor： JANSSON PATRICIA , LARSSON LARS-AKE
Abstract: The invention concerns a novel low oxygen powder comprising particles of a base powder consisting of essentially pure iron having an insulating oxygen- and phosphorus-containing barrier. The oxygen content of the new powder is at most 0.2% by weight higher than the oxygen content of the base powder, and the ratio O:P is between 30 and 1, preferably between 15 and 2 and most preferably between 10 and 3 as measured by the ESCA method. The invention also concerns a new method of preparing an iron-based powder comprising the steps of preparing a base powder consisting of a water atomized iron powder or a sponge iron powder, subjecting the mixture to treatment with a solution of phosphoric acid in an organic solvent and drying the obtained mixture, whereby the solution of phosphoric acid is sprayed on the base powder while being mixed.
-
公开(公告)号：ES2155889T3
公开(公告)日：2001-06-01
申请号：ES95918229
申请日：1995-04-24
Applicant: HOEGANAES AB
Inventor： JANSSON PATRICIA
Abstract: PCT No. PCT/SE95/00445 Sec. 371 Date Oct. 11, 1996 Sec. 102(e) Date Oct. 11, 1996 PCT Filed Apr. 24, 1995 PCT Pub. No. WO95/29490 PCT Pub. Date Nov. 2, 1995The invention concerns a method of compacting and heat-treating iron powders in order to obtain magnetic core components having improved soft magnetic properties. The iron powder consists of fine particles which are insulated by a thin layer having a low phosphorous content. According to the invention, the compacted iron powder is subjected to heat treatment at a temperature between 350 DEG and 550 DEG C.
-
8.发明专利
公开(公告)号：PL179450B1
公开(公告)日：2000-09-29
申请号：PL31821795
申请日：1995-07-17
Applicant: HOEGANAES AB
Inventor： JANSSON PATRICIA
Abstract: PCT No. PCT/SE95/00874 Sec. 371 Date Jan. 21, 1997 Sec. 102(e) Date Jan. 21, 1997 PCT Filed Jul. 17, 1995 PCT Pub. No. WO96/02345 PCT Pub. Date Feb. 1, 1996The present invention concerns a method, according to which powder compositions of iron-based particles are admixed with a thermoplastic material and a lubricant. The obtained mixture is compacted at a temperature below the glass-transition temperature or melting point of the thermoplastic resin and the compacted product is heated in order to cure the thermoplastic resin. Subsequently, the obtained compacted component is optionally heated to a temperature above the curing temperature.
-
公开(公告)号：AT193472T
公开(公告)日：2000-06-15
申请号：AT95926093
申请日：1995-07-17
Applicant: HOEGANAES AB
Inventor： JANSSON PATRICIA
Abstract: PCT No. PCT/SE95/00874 Sec. 371 Date Jan. 21, 1997 Sec. 102(e) Date Jan. 21, 1997 PCT Filed Jul. 17, 1995 PCT Pub. No. WO96/02345 PCT Pub. Date Feb. 1, 1996The present invention concerns a method, according to which powder compositions of iron-based particles are admixed with a thermoplastic material and a lubricant. The obtained mixture is compacted at a temperature below the glass-transition temperature or melting point of the thermoplastic resin and the compacted product is heated in order to cure the thermoplastic resin. Subsequently, the obtained compacted component is optionally heated to a temperature above the curing temperature.
-
公开(公告)号：BR9707648A
公开(公告)日：1999-07-27
申请号：BR9707648
申请日：1997-02-19
Applicant: HOEGANAES AB
Inventor： JANSSON PATRICIA , LARSSON LARS-AKE
Abstract: The invention concerns a novel low oxygen powder comprising particles of a base powder consisting of essentially pure iron having an insulating oxygen- and phosphorus-containing barrier. The oxygen content of the new powder is at most 0.2% by weight higher than the oxygen content of the base powder, and the ratio O:P is between 30 and 1, preferably between 15 and 2 and most preferably between 10 and 3 as measured by the ESCA method. The invention also concerns a new method of preparing an iron-based powder comprising the steps of preparing a base powder consisting of a water atomized iron powder or a sponge iron powder, subjecting the mixture to treatment with a solution of phosphoric acid in an organic solvent and drying the obtained mixture, whereby the solution of phosphoric acid is sprayed on the base powder while being mixed.
-
-
-
-
-
-
-
-
-
Search Results
61
records
(took 0.021 seconds)
