RU2003102383A - METHOD FOR PRODUCING POWDER METAL PRODUCTS WITH SEALED SURFACE - Google Patents

METHOD FOR PRODUCING POWDER METAL PRODUCTS WITH SEALED SURFACE

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Publication number
RU2003102383A
RU2003102383A RU2003102383/02A RU2003102383A RU2003102383A RU 2003102383 A RU2003102383 A RU 2003102383A RU 2003102383/02 A RU2003102383/02 A RU 2003102383/02A RU 2003102383 A RU2003102383 A RU 2003102383A RU 2003102383 A RU2003102383 A RU 2003102383A
Authority
RU
Russia
Prior art keywords
surface layer
product
carried out
decarburization
under conditions
Prior art date
Application number
RU2003102383/02A
Other languages
Russian (ru)
Other versions
RU2271263C2 (en
Inventor
Свен БЕНГТССОН
Янг Ю
Мартин Свенссон
Original Assignee
Хеганес Аб
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from SE0002448A external-priority patent/SE0002448D0/en
Application filed by Хеганес Аб filed Critical Хеганес Аб
Publication of RU2003102383A publication Critical patent/RU2003102383A/en
Application granted granted Critical
Publication of RU2271263C2 publication Critical patent/RU2271263C2/en

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Claims (11)

1. Способ уплотнения поверхностного слоя при необходимости спеченного углеродсодержащего изделия, полученного из железного порошка или порошка на основе железа, содержащий стадии обезуглероживания поверхностного слоя с целью размягчения поверхностного слоя изделия, и уплотнения поверхностного слоя изделия путем механического формования.1. A method of densifying a surface layer of an optionally sintered carbon-containing article obtained from iron powder or iron-based powder, comprising the steps of decarburizing the surface layer to soften the surface layer of the article, and densifying the surface layer of the article by mechanical molding. 2. Способ по п.1, в котором обезуглероживание проводят при условиях, достаточных для обеспечения мягкого поверхностного слоя, имеющего толщину 0,1-1,5 мм, предпочтительно 0,8-1,2 мм.2. The method according to claim 1, in which decarburization is carried out under conditions sufficient to provide a soft surface layer having a thickness of 0.1-1.5 mm, preferably 0.8-1.2 mm 3. Способ по п.1 или 2, в котором обезуглероживание проводят при условиях, достаточных для обеспечения содержания углерода 0-0,5 мас.%, предпочтительно 0,03-0,3 мас.% в мягком поверхностном слое изделия.3. The method according to claim 1 or 2, in which decarburization is carried out under conditions sufficient to provide a carbon content of 0-0.5 wt.%, Preferably 0.03-0.3 wt.% In the soft surface layer of the product. 4. Способ по любому из пп.1-3, в котором за уплотнением поверхности следует цементация.4. The method according to any one of claims 1 to 3, in which cementation follows the compaction of the surface. 5. Способ по п.4, в котором цементацию проводят как процесс науглероживания.5. The method according to claim 4, in which carburizing is carried out as a carburization process. 6. Способ по п.4 или 5, в котором цементацию проводят при условиях, достаточных для обеспечения содержания углерода 0,3-1,5 мас.%, предпочтительно 0,5-0,9 мас.% в поверхностном слое изделия.6. The method according to claim 4 or 5, in which the carburizing is carried out under conditions sufficient to provide a carbon content of 0.3-1.5 wt.%, Preferably 0.5-0.9 wt.% In the surface layer of the product. 7. Способ по любому из пп.4-6, в котором углерода в сердцевине цементированного изделия составляет 0,3-1,0 мас.%.7. The method according to any one of claims 4 to 6, in which the carbon in the core of the cemented product is 0.3-1.0 wt.%. 8. Способ по любому из пп.1-7, в котором обезуглероживание влечет за собой нагревание изделия при 750-1200°С, предпочтительно при 850-1000°С в контролируемой атмосфере.8. The method according to any one of claims 1 to 7, in which decarburization entails heating the product at 750-1200 ° C, preferably at 850-1000 ° C in a controlled atmosphere. 9. Способ по любому из пп.1-8, в котором изделие включает в себя один или несколько легирующих элементов, выбранных из группы, состоящей Cu, Cr, Mo, Ni, Mn, P, V и С.9. The method according to any one of claims 1 to 8, in which the product includes one or more alloying elements selected from the group consisting of Cu, Cr, Mo, Ni, Mn, P, V and C. 10. Способ получения порошковых металлических изделий, имеющих высокую плотность и уплотненную поверхность, содержащий стадии спекания прессованного изделия и обезуглероживания поверхностного слоя изделия во время части процедуры спекания с целью размягчения поверхностного слоя, и уплотнения размягченного поверхностного слоя изделия.10. A method for producing powdered metal products having a high density and compacted surface, comprising the steps of sintering the pressed product and decarburizing the surface layer of the product during part of the sintering process to soften the surface layer, and densify the softened surface layer of the product. 11. Спеченное порошковое металлическое изделие из сплава железа, имеющего содержание углерода 0,3-1,0% в его сердцевине и 0,3-1,5%, предпочтительно 0,5-0,9% в его цементированном внешнем слое.11. Sintered powder metal product from an alloy of iron having a carbon content of 0.3-1.0% in its core and 0.3-1.5%, preferably 0.5-0.9% in its cemented outer layer.
RU2003102383/02A 2000-06-28 2001-06-25 Metal powder articles with compacted surface manufacturing method RU2271263C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0002448A SE0002448D0 (en) 2000-06-28 2000-06-28 method of producing powder metal components
SE0002448-9 2000-06-28

Publications (2)

Publication Number Publication Date
RU2003102383A true RU2003102383A (en) 2004-07-20
RU2271263C2 RU2271263C2 (en) 2006-03-10

Family

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Family Applications (1)

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RU2003102383/02A RU2271263C2 (en) 2000-06-28 2001-06-25 Metal powder articles with compacted surface manufacturing method

Country Status (13)

Country Link
US (1) US7169351B2 (en)
EP (1) EP1294511A1 (en)
JP (1) JP2004502028A (en)
KR (1) KR100520701B1 (en)
CN (1) CN100391659C (en)
AU (1) AU2001266498A1 (en)
BR (1) BR0111949A (en)
CA (1) CA2412520C (en)
MX (1) MXPA03000079A (en)
RU (1) RU2271263C2 (en)
SE (1) SE0002448D0 (en)
TW (1) TW461841B (en)
WO (1) WO2002000378A1 (en)

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