JP2006125392A - Impeller for radial flow compressor, and method for manufacturing the same - Google Patents

Impeller for radial flow compressor, and method for manufacturing the same Download PDF

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Publication number
JP2006125392A
JP2006125392A JP2005294892A JP2005294892A JP2006125392A JP 2006125392 A JP2006125392 A JP 2006125392A JP 2005294892 A JP2005294892 A JP 2005294892A JP 2005294892 A JP2005294892 A JP 2005294892A JP 2006125392 A JP2006125392 A JP 2006125392A
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base material
impeller
additional
additional material
gradient
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JP5214848B2 (en
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Gottfried Braun
ブラウン ゴットフリート
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MAN B&W Diesel GmbH
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MAN B&W Diesel GmbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • B22F3/14—Both compacting and sintering simultaneously
    • B22F3/15—Hot isostatic pressing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/02—Selection of particular materials
    • F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
    • B22F7/04—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers with one or more layers not made from powder, e.g. made from solid metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/40—Heat treatment
    • F05D2230/42—Heat treatment by hot isostatic pressing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/10—Metals, alloys or intermetallic compounds
    • F05D2300/17—Alloys
    • F05D2300/173—Aluminium alloys, e.g. AlCuMgPb

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Powder Metallurgy (AREA)
  • Forging (AREA)
  • Supercharger (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide an impeller for a radial flow compressor, formed of base material comprising thermosetting alloy including at least Al and Cu, with increased thermal strength in an outlet range of compressed gas. <P>SOLUTION: An outside part of the impeller is formed of additive material 3 and 17 comprising heat-resistant alloy including Al forming gradient material with base material 2 and 16. Strong coupling effect is generated between the base material and the impeller by means of the gradient material. A radial flow impeller having excellent durability and heat resistance is thus manufactured. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、少なくともＡｌとＣｕとを含む熱硬化性合金から成る母材で作った半径流圧縮機インペラとその製造方法に関する。   The present invention relates to a radial compressor impeller made of a base material made of a thermosetting alloy containing at least Al and Cu, and a method for manufacturing the same.

排気ガス駆動式過給機における公知の半径流圧縮機インペラは、ＡｌＣｕＭｇ合金からなる。この合金を熱硬化すべくＴ６・熱処理を行う。この処理は、合金をまず約３時間にわたり約５００℃の温度に加熱し、それから室温に急冷する。この材料を、続いて８時間にわたり約１８０〜２００℃の熱エージング温度に保ち、その後室温に冷却する。   A known radial compressor impeller in an exhaust gas driven supercharger is made of an AlCuMg alloy. A T6 heat treatment is performed to heat cure the alloy. This treatment first heats the alloy to a temperature of about 500 ° C. for about 3 hours and then rapidly cools to room temperature. This material is subsequently maintained at a heat aging temperature of about 180-200 ° C. for 8 hours and then cooled to room temperature.

このように製造した半径流圧縮機インペラは、限られた耐熱性しか示さない。空気の出口温度が数時間にわたり熱エージング温度に達するか超過した際、インペラ外縁、即ち圧縮空気の出口範囲に材料の過剰劣化が生ずる。この過剰劣化は強度を低下させ、このために、例えばインペラ部品が折損して損傷を生ずる。   The radial compressor impeller produced in this way shows only limited heat resistance. When the air outlet temperature reaches or exceeds the heat aging temperature over several hours, material over-degradation occurs at the impeller outer edge, ie, the compressed air outlet area. This over-degradation reduces the strength and, for this reason, for example impeller parts break and cause damage.

本発明の課題は、被圧縮気体の出口範囲における熱的強度が増大した、冒頭に述べた形式の半径流圧縮機インペラを提供することにある。   The object of the present invention is to provide a radial compressor impeller of the type mentioned at the outset with increased thermal strength in the outlet range of the compressed gas.

この課題は本発明に基づき、インペラの外側部が、母材との間にグラジエント材料を形成する、Ａｌを含む耐熱合金で形成された付加材料から成ることにより解決できる。これに伴い、耐熱性外側部を備えた十分な強度の半径流圧縮機インペラを製造できる。   According to the present invention, this problem can be solved by the outer portion of the impeller being made of an additional material formed of a heat-resistant alloy containing Al that forms a gradient material with the base material. Accordingly, a sufficiently strong radial compressor impeller having a heat-resistant outer portion can be manufactured.

本発明の第１実施態様では、外側部の付加材料は少なくともＡｌとＣｕとを含む合金から成る。本発明の他の実施態様では、外側部の付加材料は少なくともＡｌとＦｅとを含む合金から成る。   In the first embodiment of the present invention, the additional material of the outer portion is made of an alloy containing at least Al and Cu. In another embodiment of the invention, the outer side additive material comprises an alloy containing at least Al and Fe.

頭記の形式の半径流圧縮機インペラを製造すべく、粉末冶金用の母材の付加材料から、等温プレス法でグラジエント材料から成る半製品を製造する。或いは同じ目的で、溶融母材と溶融付加材料のスプレイ凝結によりグラジエント材料から成る半製品を製造する。   In order to produce the radial compressor impeller of the type mentioned above, a semi-finished product made of a gradient material is produced from an additive material of a base material for powder metallurgy by an isothermal pressing method. Alternatively, for the same purpose, a semi-finished product made of a gradient material is produced by spray condensation of the molten base material and the molten additive material.

本発明の他の特徴を、従属請求項と図を参照した本発明の２つの実施例の説明で明らかにする。図１〜５は第１実施例、そして図６と７は第２実施例の製造工程を各々示す。   Other features of the invention will become apparent in the description of the two embodiments of the invention with reference to the dependent claims and the figures. 1 to 5 show the manufacturing process of the first embodiment, and FIGS. 6 and 7 show the manufacturing process of the second embodiment.

（実施例１）
第１実施例では、カプセル１を薄いＡｌ外被で製造する。その形状は次の工程での材料収縮を考慮に入れた、製造すべき半径流圧縮機インペラの輪郭に相当する。カプセル１内に、半径流圧縮機インペラの主要部を形成する粉末状母材２を詰め込む。母材は少なくとも成分ＡｌとＣｕとを含む合金から成る。他の合金成分、例えばＭｇも含有できる。母材を、カプセル１への詰め込み前に細かな粉末に粉砕し又はカプセル１内に噴霧する。 Example 1
In the first embodiment, the capsule 1 is manufactured with a thin Al jacket. Its shape corresponds to the contour of the radial compressor impeller to be manufactured taking into account the material shrinkage in the next step. The capsule 1 is filled with a powdery base material 2 that forms the main part of the radial compressor impeller. The base material is made of an alloy containing at least components Al and Cu. Other alloy components such as Mg can also be included. The base material is pulverized into a fine powder or sprayed into the capsule 1 before being packed into the capsule 1.

続いて図２に示す如く、カプセル１の、後で羽根先端を形成すべく用いる外側領域に、同様に粉末状の付加材料３を詰め込む。この付加材料３は、合金成分ＡｌとＣ並びに場合によっては他の少量の成分を含んでいる。   Subsequently, as shown in FIG. 2, the powdery additional material 3 is similarly packed in the outer region of the capsule 1 that is used later to form the blade tip. This additional material 3 contains alloy components Al and C and possibly other small amounts of components.

付加材料３の詰め込み後、カプセル１の蓋４で閉じ、続いて排気する。そしてカプセル１を、図３に示す如く、高温高圧で等温プレス処理する。   After the additional material 3 is packed, it is closed with the lid 4 of the capsule 1 and then evacuated. Then, the capsule 1 is isothermally pressed at a high temperature and a high pressure as shown in FIG.

図４に示す如く、等温プレス処理により均一な半製品５が生ずる。この半製品５は母材２と付加材料３との間に、両材料の成分が混在する遷移領域６を有している。   As shown in FIG. 4, a uniform semi-finished product 5 is produced by isothermal pressing. This semi-finished product 5 has a transition region 6 where the components of both materials are mixed between the base material 2 and the additional material 3.

必要に応じ、半製品５に、続く鍛造成形後、母材２に対し上述のＴ６・熱処理を施す。   If necessary, the semi-finished product 5 is subjected to the above-described T6 and heat treatment on the base material 2 after subsequent forging.

その後半製品を、図５に示す如く、ロータ本体７と羽根８を形成すべく切削加工する。   Thereafter, the semi-finished product is cut to form the rotor body 7 and the blades 8 as shown in FIG.

羽根８の外側部は耐熱性の付加材料３から成る。両材料２、３から成るグラジエント材料により、羽根８の外側部の優れた耐熱性を保証しつつ、インペラの機械的強度を保持できる。   The outer portion of the blade 8 is made of the heat-resistant additive material 3. The gradient material composed of both materials 2 and 3 can maintain the mechanical strength of the impeller while guaranteeing excellent heat resistance of the outer portion of the blade 8.

（実施例２）
第２実施例では、母材としてＡｌ・Ｃｕ合金を利用する。この母材は、Ｍｇ等の少量の他成分も含み得る。付加材料として、成分ＡｌとＦｅとを含む耐熱性の急速硬化合金を利用し、この合金に少量の他の付加合金成分を付加できる。 (Example 2)
In the second embodiment, an Al · Cu alloy is used as a base material. This base material may also contain a small amount of other components such as Mg. As an additional material, a heat-resistant rapid-curing alloy containing the components Al and Fe can be used, and a small amount of other additional alloy components can be added to the alloy.

両材料を溶融させ、別個の配管１０、１１を経て保護ガス封入容器１２に供給する。容器１２は、下部に回転冷却円板１２を有している。配管１０、１１の先端に夫々ノズル１４、１５を配置し、該ノズル１４、１５から液状材料を細かな液滴の形で噴霧する。一方のノズル１４は、母材１６を冷却円板１２上に中央芯として吹き付けるべく向いている。これに対し他方のノズル１５は、小液滴状に噴霧した付加材料１７を、冷却円板１２の回転中に一様に外側から母材１６上に吹き付けるべく向いている。容器１２には永続的に保護ガスを封入してある。図６に示す如く、冷却円板１３上へのスプレイ凝結によって、グラジエント材料から成る円筒体が生じ、該円筒体は内側に母材１６を、外側に付加材料１７を有し、その両材料間に遷移領域が存在している。その場合、ノズル１４、１５を円筒体の長手軸線の方向に移動可能に配置するとよい。   Both materials are melted and supplied to the protective gas enclosure 12 via separate pipes 10 and 11. The container 12 has a rotating cooling disk 12 at the bottom. Nozzles 14 and 15 are arranged at the tips of the pipes 10 and 11, respectively, and the liquid material is sprayed from the nozzles 14 and 15 in the form of fine droplets. One nozzle 14 is directed to spray the base material 16 on the cooling disk 12 as a central core. On the other hand, the other nozzle 15 is directed to spray the additional material 17 sprayed in the form of small droplets uniformly on the base material 16 from the outside during the rotation of the cooling disk 12. The container 12 is permanently sealed with protective gas. As shown in FIG. 6, spray condensing on the cooling disk 13 results in a cylinder made of a gradient material, which has a base material 16 on the inside and an additional material 17 on the outside, between the two materials. There is a transition area. In that case, it is good to arrange | position the nozzles 14 and 15 so that a movement in the direction of the longitudinal axis of a cylindrical body is possible.

図７に示す如く、続いて半製品１８を形成すべく、グラジエント材料から成る円筒体を水平切断によって分割する。   As shown in FIG. 7, a cylindrical body of gradient material is subsequently divided by horizontal cutting to form a semi-finished product 18.

その後半製品１８を、第１実施例と同様に鍛造し、Ｔ６・熱処理し、続いて切削する。   Thereafter, the semi-finished product 18 is forged in the same manner as in the first embodiment, subjected to T6 and heat treatment, and then cut.

本発明に基づく製造方法の第１実施例における最初の工程の説明図。Explanatory drawing of the 1st process in 1st Example of the manufacturing method based on this invention. 図１の次工程の説明図。Explanatory drawing of the next process of FIG. 図２の次工程の説明図。Explanatory drawing of the next process of FIG. 図３の次工程の説明図。Explanatory drawing of the next process of FIG. 図４の次工程の説明図。Explanatory drawing of the next process of FIG. 本発明に基づく製造方法の第２実施例における工程の説明図。Explanatory drawing of the process in 2nd Example of the manufacturing method based on this invention. 図６の次の工程の説明図。Explanatory drawing of the next process of FIG.

符号の説明Explanation of symbols

１ カプセル、２、１６ 母材、３、１７ 付加材料、５ 半製品、１３ 冷却円板 1 capsule, 2, 16 base material, 3, 17 additional material, 5 semi-finished product, 13 cooling disk

Claims (11)

少なくともＡｌとＣｕとを含む熱硬化性合金から成る母材で作られた半径流圧縮機インペラにおいて、インペラの外側部が、母材（２、１６）との間にグラジエント材料を形成する、Ａｌを含む耐熱合金で形成された付加材料（３、１７）から成ることを特徴とする半径流圧縮機インペラ。   In a radial compressor impeller made of a base material made of a thermosetting alloy containing at least Al and Cu, an outer portion of the impeller forms a gradient material with the base material (2, 16). A radial flow compressor impeller comprising an additional material (3, 17) formed of a heat-resistant alloy containing 外側部の付加材料（３）が少なくともＡｌとＣｕとを含む合金から成ることを特徴とする請求項１記載のインペラ。   The impeller according to claim 1, wherein the additional material (3) of the outer portion is made of an alloy containing at least Al and Cu. 外側部の付加材料（１７）が少なくともＡｌとＦｅとを含む合金から成ることを特徴とする請求項１記載のインペラ。   The impeller according to claim 1, characterized in that the additional material (17) of the outer part is made of an alloy containing at least Al and Fe. 母材（２）と付加材料（３）とから、等温プレス法によりグラジエント材料から成る半製品（５）を製造することを特徴とする請求項１から３の１つに記載の半径流圧縮機インペラの製造方法。   A radial flow compressor according to one of claims 1 to 3, characterized in that a semi-finished product (5) made of a gradient material is produced from the base material (2) and the additional material (3) by an isothermal pressing method. Impeller manufacturing method. 溶融母材（１６）と溶融付加材料（１７）のスプレイ凝結により、グラジエント材料から成る半製品（５）を製造することを特徴とする請求項１から３の１つに記載の方法。   4. A method according to claim 1, wherein the semi-finished product (5) made of a gradient material is produced by spray congealing of the molten base material (16) and the molten additive material (17). Ａｌ外被から成りインペラの輪郭に相当するカプセル（１）の中に、中央に粉末状母材（２）、外側領域に粉末状付加材料（３）を夫々詰め込み、カプセル（１）を閉鎖し排気した後、グラジエント材料から成る半製品を形成すべく、カプセル（１）上に高温・高圧を加えることを特徴とする請求項４記載の方法。   A capsule (1) made of an Al outer shell and corresponding to the outline of the impeller is filled with a powdery base material (2) in the center and a powdery additional material (3) in the outer region, and the capsule (1) is closed. 5. Method according to claim 4, characterized in that after evacuation, high temperature and high pressure are applied on the capsule (1) to form a semi-finished product of gradient material. 母材（２）および付加材料（３）を、粉砕或いは噴霧することを特徴とする請求項６記載の方法。   The method according to claim 6, characterized in that the base material (2) and the additional material (3) are ground or sprayed. 母材（１６）と付加材料（１７）を粉砕或いは噴霧し、スプレイ凝結によってグラジエント材料から成る円筒体の形にし、該円筒体を母材（１６）から成る中央芯と、付加材料（１７）から成る外側部とから構成することを特徴とする請求項５記載の方法。   The base material (16) and the additional material (17) are pulverized or sprayed to form a cylindrical body made of a gradient material by spray condensation, and the cylindrical body is made into a central core made of the base material (16), and the additional material (17). 6. A method according to claim 5, characterized in that it comprises an outer part consisting of: スプレイ凝結のため、回転冷却円板（１３）上の中央に母材（１６）を、母材（１６）の横に付加材料（１７）を夫々吹き付けることを特徴とする請求項８記載の方法。   9. Method according to claim 8, characterized in that, for spray condensation, the base material (16) is sprayed on the center of the rotating cooling disc (13) and the additional material (17) is sprayed next to the base material (16). . スプレイ凝結を、容器（１２）内において保護ガス下で行うことを特徴とする請求項８又は９記載の方法。   10. A method according to claim 8 or 9, characterized in that the spray condensation is carried out in a container (12) under protective gas. 半製品（５、１８）を鍛造し、その後、母材（２，１６）を硬化すべく熱処理し、続いて最終形状に切削加工することを特徴とする請求項４から１０の１つに記載の方法。   11. Forging a semi-finished product (5, 18), followed by heat treatment to harden the base material (2, 16) and subsequently cutting to a final shape. the method of.
JP2005294892A 2004-10-12 2005-10-07 Radial flow compressor impeller and manufacturing method thereof Expired - Fee Related JP5214848B2 (en)

Applications Claiming Priority (2)

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DE102004049543.2 2004-10-12
DE102004049543A DE102004049543A1 (en) 2004-10-12 2004-10-12 Rotor for radial compressor has outer region consisting of basic and additional materials forming gradient material

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JP2006125392A true JP2006125392A (en) 2006-05-18
JP5214848B2 JP5214848B2 (en) 2013-06-19

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EP4209681A1 (en) * 2022-01-07 2023-07-12 Hamilton Sundstrand Corporation Rotor formed of multiple metals

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CN105526190A (en) * 2016-01-21 2016-04-27 大丰市海纳机械有限公司 Automobile engine cooling water pump alloy structural steel die forging hub
EP4209681A1 (en) * 2022-01-07 2023-07-12 Hamilton Sundstrand Corporation Rotor formed of multiple metals

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JP5214848B2 (en) 2013-06-19
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CH697851B1 (en) 2009-02-27
KR20060052149A (en) 2006-05-19

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