JP2010094737A - Method for manufacturing frame-shaped structural component - Google Patents

Method for manufacturing frame-shaped structural component Download PDF

Info

Publication number
JP2010094737A
JP2010094737A JP2009236845A JP2009236845A JP2010094737A JP 2010094737 A JP2010094737 A JP 2010094737A JP 2009236845 A JP2009236845 A JP 2009236845A JP 2009236845 A JP2009236845 A JP 2009236845A JP 2010094737 A JP2010094737 A JP 2010094737A
Authority
JP
Japan
Prior art keywords
melt
runner
region
mold
frame
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP2009236845A
Other languages
Japanese (ja)
Other versions
JP5133959B2 (en
Inventor
Dieter Jungert
ユンゲルト ディーター
Tassilo Gilbert
ギルベルト タッシロ
Harald Biersack
ビーアザック ハーラルト
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche AG
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
Application filed by Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Publication of JP2010094737A publication Critical patent/JP2010094737A/en
Application granted granted Critical
Publication of JP5133959B2 publication Critical patent/JP5133959B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/68—Seat frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/007—Semi-solid pressure die casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/2015—Means for forcing the molten metal into the die
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/2015—Means for forcing the molten metal into the die
    • B22D17/2038—Heating, cooling or lubricating the injection unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B22D17/2272—Sprue channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Seats For Vehicles (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for manufacturing a frame-shaped structural component. <P>SOLUTION: The invention relates to the method for manufacturing the frame-shaped structural component (2) having an opening (7), especially a backrest structure or seat frame structure for a motor vehicle, by using cast light metal alloy. In the method, (a) a metal is supplied into at least two heated melt supply sections 11 and 11 of which melt outlets 12 and 12 communicate directly with the runners of a mold which are used to stow the melt for the structural component, and (b) the molten metal is supplied from the melt supply sections into the runners of the mold where melt streams flow in the counter directions inside the runners. By this method, the structural component which requires only very slight rework at most after casting can be manufactured and an increase in a mechanical characteristic value can be achieved within the defined region of the frame. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、鋳造による軽金属合金を使用して、開口部を有するフレーム状の構造部品、特に車両の背もたれ構造またはシートフレーム構造を製造するための方法に関する。   The present invention relates to a method for producing a frame-like structural part having an opening, in particular a vehicle backrest structure or a seat frame structure, using a light metal alloy by casting.

この種の方法は（特許文献１）から知られている。この方法は、マグネシウム合金を使用して車両シートの背もたれフレームを製造するために用いられる。この方法では、溶融金属が鋳造ゲート内に流入されて鋳型鋳造によって鋳造され、この鋳造ゲートは、背もたれフレームを製造するための鋳型内で金属が異なる方向に分配されるように、当該鋳型のほぼ中心に設置される。溶融金属は、鋳型内で５００バール〜７００バールの実際の圧力において４．５ｍ／ｓ〜５．５ｍ／ｓの速度で流れる。   This type of method is known from (Patent Document 1). This method is used to manufacture a vehicle seat back frame using a magnesium alloy. In this method, molten metal is flowed into a casting gate and cast by mold casting, which is approximately the mold of the mold so that the metal is distributed in different directions within the mold for manufacturing the back frame. Installed in the center. The molten metal flows in the mold at a speed of 4.5 m / s to 5.5 m / s at an actual pressure of 500 bar to 700 bar.

この公知の方法の欠点は、溶融物が冷却された後に、鋳造ゲート（スプルー）の中央接続部が前記鋳造ゲートと実際の背もたれフレームとの間にウェブを形成し、これらのウェブを屑片として除去しなければならないことである。さらに、鋳造された背もたれフレームの多数の異なる箇所に廃棄ウェブがあることにより、前記背もたれフレームを再加工することが必要となる。その上、この鋳造法は、いくつかの領域のフレームの機械的負荷能力について、背もたれフレームの領域を意図的に最適化することが不可能である点で不利である。この最適化は、衝突時の背もたれフレームの機械的負荷に特に重要である。   The disadvantage of this known method is that after the melt has cooled, the central connection of the casting gate (sprue) forms a web between the casting gate and the actual back frame, and these webs are used as debris. It must be removed. Furthermore, due to the waste webs in many different locations of the cast back frame, it is necessary to rework the back frame. Moreover, this casting method is disadvantageous in that it is impossible to deliberately optimize the area of the back frame with respect to the mechanical load capacity of the frames in some areas. This optimization is particularly important for the mechanical load of the back frame in the event of a collision.

（特許文献２）には、開口部を有するフレーム状の構造部品、具体的には車両シートの背もたれ構造が記載されている。この背もたれ構造は鋳造によって製造され、この場合、比重量が低い半溶融合金の溶融物を注入するために、チクソモールディング法が用いられる。   (Patent Document 2) describes a frame-like structural component having an opening, specifically, a backrest structure of a vehicle seat. This backrest structure is manufactured by casting, in which case thixomolding is used to inject a melt of a semi-molten alloy having a low specific weight.

（特許文献３）には、車両シートのヘッドレストが記載されており、この場合、チクソモールディング法により、かつマグネシウム合金またはアルミニウム合金を使用することによって、金属構造の部品が製造される。   (Patent Document 3) describes a headrest of a vehicle seat. In this case, a metal structure component is manufactured by a thixo molding method and using a magnesium alloy or an aluminum alloy.

（特許文献４）には、鋳造による車両シートの背もたれ構造およびシートフレーム構造の製造が開示されており、この場合、圧力ダイカストによって、背もたれ構造およびシートフレーム構造の金属体が単一の作業で形成される。   (Patent Document 4) discloses the production of a vehicle seat back structure and a seat frame structure by casting. In this case, the metal body of the back structure and the seat frame structure is formed by a single operation by pressure die casting. Is done.

独国特許出願公開第１０２００４０６２９４６Ａ１号明細書German Patent Application Publication No. 102004062946A1 米国特許第６，５１３，８７８Ｂ１号明細書US Pat. No. 6,513,878 B1 欧州特許出願公開第１１８６４６９Ａ１号明細書European Patent Application No. 1186469A1 国際公開第９７／０４６８９号パンフレットInternational Publication No. 97/04689 pamphlet 独国特許第１００８０７２６Ｂ４号明細書German Patent No. 10080726B4 独国特許出願公開第１９６３９０５３Ａ１号明細書German Patent Application Publication No. 19639053A1 独国特許第１９６３９０５２Ｃ２号明細書German Patent 19639052C2 specification 特開２０００−２８００５５号公報JP 2000-280055 A 独国特許出願公開第１０２００４０６３５２７Ａ１号明細書German Patent Application Publication No. 102004063527A1 欧州特許第０８４１８６４Ｂ１号明細書European Patent No. 0841864B1 国際公開第９９／２８０６５号パンフレットWO99 / 28065 pamphlet 特開２００５−３１９２８１号公報JP 2005-319281 A

本発明の目的は、鋳造後に多くてもごく僅かな再加工しか必要としない構造部品を製造することが可能になり、これにより、フレームの規定領域で、機械的特性値の増大を達成することが可能になるように、冒頭に記載した種類の方法を開発することである。   The object of the present invention is to make it possible to manufacture structural parts that require very little rework after casting, thereby achieving an increase in mechanical properties in a defined area of the frame. Is to develop a method of the kind described at the beginning so that is possible.

この目的は、
ａ．金属溶融物が、加熱された少なくとも２つの溶融物供給部に供給され、これらの溶融物供給部の溶融物出口が鋳型のランナー内に直接通じ、このランナーが構造部品用の溶融物を収容するために使用されることと、
ｂ．金属溶融物が溶融物供給部から鋳型のランナー内に供給され、この場合、溶融ストリームがランナーにおいて互いに反対向きの複数方向に流れることと
によって特徴付けられる冒頭に記載した種類の方法によって達成される。 This purpose is
a. Metal melt is fed to at least two heated melt feeds, the melt outlets of these melt feeds lead directly into the mold runner, which contains the melt for the structural parts. Used for
b. A metal melt is fed from the melt feed into the runner of the mold, which is achieved by a method of the kind described at the outset characterized in that the melt stream flows in the runner in opposite directions. .

特別な温度制御が本発明による方法に必須である。このようにして、溶融物は、鋳型のランナーに入るまで加熱されるので、その加熱された領域では固化しない。その結果、フレーム状の構造部品のみが固化し、したがって廃棄材料が発生せず、構造部品に対する再加工を最小限に減らすことができる。   Special temperature control is essential for the process according to the invention. In this way, the melt is heated until it enters the runner of the mold and therefore does not solidify in the heated area. As a result, only the frame-like structural part is solidified, so that no waste material is generated, and rework on the structural part can be reduced to a minimum.

加熱された２つの溶融物供給部により、高温溶融物は、溶融物供給部に隣接する鋳型のランナーの領域内を通過し、ランナーを通って流れるときにゆっくりと冷却する。構造部品のフレーム状の形状と少なくとも２つの溶融物供給部の構成とにより、溶融物が溶融物供給部を介して鋳型のランナーの領域内に吐出されることが可能になり、この溶融物が吐出されるランナーの領域は、完成した構造部品の領域における増大した機械的負荷を受ける領域に対応する。上記領域は、好ましくは、フレーム状の構造部品の横方向フレーム部であり、特にシートの背もたれ構造の場合には、上記領域は、シートフレーム構造を旋回可能に収容するためのシートの背もたれ構造の軸受収容部に隣接して配置される横方向フレーム部である。   With the two heated melt supplies, the hot melt passes through the area of the mold runner adjacent to the melt supply and slowly cools as it flows through the runner. The frame-like shape of the structural part and the configuration of the at least two melt supply sections allow the melt to be discharged into the mold runner region via the melt supply section. The area of the runner that is dispensed corresponds to the area that receives the increased mechanical load in the area of the finished structural part. The region is preferably a lateral frame part of a frame-like structural component, and particularly in the case of a seat back structure, the region is a seat back structure for pivotally receiving the seat frame structure. It is a horizontal direction frame part arrange | positioned adjacent to a bearing accommodating part.

鋳型のランナーに対する溶融物供給部の配置と、結果として高温となる、溶融物がランナーに入る箇所の配置とにより、最終製品、すなわち、フレーム状の構造部品の機械的特性値を所望の箇所で意図的に増加させることが可能になる。これは溶融物供給部が、衝突時に大きな力を吸収する領域に配置されることによる。さらに、本方法により、低温流の箇所を規定領域に位置決めすることが可能になる。これにより、制御された破損をもたらすことが可能になる。本方法により、フレーム状の構造部品の質量をさらに減少させるように、スプルーからある距離でフレーム状の構造部品の壁厚を薄くすることが可能になる。この壁圧が薄い領域は、まさに小さな負荷を受ける領域に関係する。やや小さな負荷を受けるこの種の背もたれ構造領域は、例えば、背もたれ構造の上部水平部に配置され、この上部水平部の領域において、ヘッドレストがフレーム状の構造部品に取り付けられる。   The mechanical properties of the final product, i.e., the frame-like structural part, can be obtained at the desired location by the arrangement of the melt supply section with respect to the mold runner and the arrangement of the location where the melt enters the runner. It can be increased intentionally. This is because the melt supply unit is arranged in a region that absorbs a large force at the time of collision. Furthermore, this method makes it possible to position the location of the low temperature flow in the defined area. This makes it possible to bring about controlled breakage. This method makes it possible to reduce the wall thickness of the frame-like structural component at a distance from the sprue so as to further reduce the mass of the frame-like structural component. This region where the wall pressure is low relates to the region that is subjected to a very small load. This type of backrest structure region that receives a slightly small load is disposed, for example, in the upper horizontal portion of the backrest structure, and the headrest is attached to the frame-shaped structural component in this upper horizontal portion region.

フレーム状の構造部品は特に閉じたフレームであり、したがって、この閉じたフレームは構造部品の開口部の全側面を囲む。しかし、本発明の方法を、構造部品の２つの横方向領域と、それらを接続する領域との間にのみ開口部を形成するフレーム状の構造部品のために用いることも可能である。   The frame-like structural part is in particular a closed frame, and therefore this closed frame surrounds all sides of the opening of the structural part. However, it is also possible to use the method according to the invention for a frame-like structural component that forms an opening only between two lateral regions of the structural component and the region connecting them.

開口部を有する全てのフレーム状の構造部品では、金属溶融物が溶融物供給部から鋳型のランナー内に供給された後に、溶融ストリームがランナーにおいて反対方向に流れることが共通の特徴である。互いに向かって流れるこれらの溶融ストリームは合流し、合流領域における溶融物は溶融物供給部の領域よりも低い温度を有する。したがって、フレーム状の構造部品のより低い機械的特性値により、合流領域は、そこに制御された破損をもたらすのに特に適切である。   A common feature of all frame-like structural parts with openings is that the molten stream flows in the opposite direction in the runner after the metal melt has been fed into the runner of the mold from the melt feed. These melt streams flowing towards each other merge and the melt in the merge zone has a lower temperature than the melt feed zone. Thus, due to the lower mechanical property values of the frame-like structural part, the merged area is particularly suitable for causing controlled failure therein.

構造部品によって完全に囲まれる開口部を有するフレーム状の構造部品では、溶融物が溶融物供給部を介して鋳型の環状のランナーに供給されることで構造部品は製造される。   In the case of a frame-like structural part having an opening that is completely surrounded by the structural part, the structural part is manufactured by supplying the melt to the annular runner of the mold via the melt supply part.

溶融物供給部は異なる構造を有し得る。それぞれの溶融物供給部がホットランナーノズル（ホットランナーとも呼ばれる）を有すると特に有利であると考えられる。溶融物が鋳型のランナーに入るまで、上記ホットランナーノズルを使用して溶融物を特に効果的に意図的に加熱することができる。このことは、ランナーに入るまでおよびランナー内における特に効果的な温度制御を保証する。したがって、鋳造後に冷却されるフレーム状の構造部品について考慮すると、ノズル出口の領域における制御可能なノズル温度は、フレーム状の構造部品の入口に直接位置する。しかし、鋳型の加熱スプルーとして溶融物供給部を設計することも完全に可能である。   The melt supply can have different structures. It is considered particularly advantageous if each melt supply has a hot runner nozzle (also called a hot runner). The hot runner nozzle can be used to heat the melt particularly effectively and intentionally until the melt enters the mold runner. This ensures particularly effective temperature control until entering the runner and within the runner. Thus, when considering a frame-like structural part that is cooled after casting, the controllable nozzle temperature in the region of the nozzle outlet is directly located at the inlet of the frame-like structural part. However, it is perfectly possible to design the melt supply as a heating sprue for the mold.

異なる複数箇所で機械的特性値を増大させるフレーム状の構造部品の品質に対して、特に高い要求が課せられた場合、多数の溶融物供給部を設けること、すなわち、溶融物が高温で鋳型のランナーに直接入る多数の位置を設けることが推奨される。この場合、４つの溶融物供給部が好ましいと考えられる。   When particularly high requirements are imposed on the quality of frame-like structural parts that increase the mechanical property values at different locations, it is necessary to provide a large number of melt feeds, i.e. the melt is hot at the mold. It is recommended to have a number of locations that go directly into the runner. In this case, four melt supply parts are considered preferable.

特に、チクソモールディング法またはチクソキャスティング法と共にホットランナーノズルを使用することにより、特に高品質のフレーム状の構造部品を製造することが可能になる。材料の粘度が低減することによりおよび剪断力の作用により、加工すべき合金が固体と液体との間の転移温度まで加熱され、したがってチクソトロピー状態にあるこれらの半固体法は、互いに反対方向に前方に移動する２つの溶融ストリームが互いに接触するまで、溶融物が、特に好ましくは、ホットランナーノズルを起点として鋳型のランナーの遠隔領域内に広がることができることを保証する。   In particular, the use of a hot runner nozzle together with the thixomolding method or thixocasting method makes it possible to produce particularly high-quality frame-like structural parts. By reducing the viscosity of the material and by the action of shear forces, the alloys to be processed are heated to the transition temperature between the solid and the liquid, so that these semi-solid methods in the thixotropic state are forward in opposite directions to each other. Until the two melt streams moving in contact with each other, it is particularly preferable to ensure that the melt can spread into the remote region of the mold runner starting from the hot runner nozzle.

代替方法は、圧力ダイカストによって構造部品を鋳造する方法であり、この場合、特にホットチャンバ圧力ダイカストまたはコールドチャンバ圧力ダイカストによって、鋳造が行われる。さらに、減圧ダイカストとの組み合わせも、いずれの場合も可能である。   An alternative method is to cast the structural part by pressure die casting, in which case the casting is carried out in particular by hot chamber pressure die casting or cold chamber pressure die casting. Further, any combination with reduced pressure die casting is possible.

本発明の別の利点および特徴は、従属請求項からおよび本発明の例示的な実施形態の以下の説明から明らかとなるが、それらに限定されない。   Other advantages and features of the present invention will become apparent from the dependent claims and from the following description of exemplary embodiments of the invention, but are not limited thereto.

本発明による方法を説明するための構成の基本図である。It is a basic diagram of the structure for demonstrating the method by this invention.

図１は、マグネシウム合金からなる溶融物を鋳型のランナーに供給するための器具１を示している。この場合、この鋳型は図示されておらず、その代わりに、鋳造中に、すなわち、溶融物が鋳型の環状のランナーに導入されたときに製造されるフレーム状の構造部品２が図示されている。   FIG. 1 shows an instrument 1 for feeding a melt made of a magnesium alloy to a mold runner. In this case, the mold is not shown, but instead a frame-like structural part 2 is shown that is produced during casting, ie when the melt is introduced into the annular runner of the mold. .

フレーム状の構造部品２は乗用車のシートの、特にフロントシートの背もたれ構造であり、この場合、背もたれ構造は、横方向フレーム部３と、それと接続する上部フレーム部４と、横方向フレーム部３と接続する下部フレーム部５とによって形成される。上部フレーム部４と下部フレーム５はほぼ平行に配置され、この場合、上部フレーム部４は、ヘッドレストを挿入することができる収容部６を有し得る。横方向フレーム部３は、上部フレーム部４から分岐するように配置され、その結果、構造部品２は台形状であり、上部フレーム部４の頂部は下部フレーム部５よりもほんの僅かに短い。２つの横方向フレーム部３と上部フレーム部４および下部フレーム５との間には開口部７が形成される。フレーム状の構造部品２が完成した場合、この開口部７は、ばね装置、特に背もたればね装置を収容するために使用される。構造部品２がシートフレーム構造を形成した場合、この開口部７は、下ばね装置を収容するために使用される。   The frame-shaped structural component 2 is a backrest structure of a passenger car seat, particularly a front seat. In this case, the backrest structure includes a lateral frame portion 3, an upper frame portion 4 connected to the lateral frame portion 3, and a lateral frame portion 3. The lower frame part 5 to be connected is formed. The upper frame part 4 and the lower frame 5 are arranged substantially in parallel. In this case, the upper frame part 4 may have a housing part 6 into which a headrest can be inserted. The lateral frame part 3 is arranged to diverge from the upper frame part 4, so that the structural part 2 is trapezoidal and the top of the upper frame part 4 is only slightly shorter than the lower frame part 5. An opening 7 is formed between the two lateral frame parts 3 and the upper frame part 4 and the lower frame 5. When the frame-like structural part 2 is completed, this opening 7 is used to accommodate a spring device, in particular a backrest device. When the structural component 2 forms a seat frame structure, the opening 7 is used to accommodate the lower spring device.

溶融物を供給するための器具１は、溶融物入口８を有する供給管９を有する。供給管９は２つの分岐管１０に接続されるので、供給管９を通って流れる溶融物は２つの分岐管１０の間で均等に分割される。溶融物は２つの分岐管１０を通ってホットランナーノズル１１内に流入する。その結果、それぞれの分岐管１０を通って流れる溶融物は、前記分岐管の下流側に配置されたホットランナーノズル１１の領域において、制御された出口温度に加熱されるかまたはほぼその温度に保持される。それぞれのホットランナーノズル１１からの溶融物の出口領域は参照符号１２で示す。出口領域１２は、鋳造工程後に横方向フレーム部３の領域の鋳型で成形された構造部品２に対応する鋳型の環状のランナーの領域に、詳しく言うと、上部フレーム部４よりも下部フレーム部５に近接して配置される。両方向矢印Ａに従って、溶融物がそれぞれのホットランナーノズル１１の出口領域１２から上部フレーム部４の方向におよび下部フレーム部５の方向に流れる。溶融物は、ホットランナーノズル１１の出口領域１２を起点として、少なくとも、比較的大きな断面を有するランナーの領域に流れ、該領域から、より小さな断面を有するランナーの領域に流れる。２つのホットランナーノズル１１から吐出された溶融物の各部分ストリームは、ホットランナーノズル１１の出口領域１２への溶融物の出口温度よりも低い温度で、２つの横方向フレーム部３の間の構造部品２の対称軸の領域において合流し、すなわち、前記部分ストリームは、ヘッドレスト用の収容部６の領域においてこれらの間で、または下部フレーム部５の長手方向に沿った中間で合流する。したがって、好ましくはチクソモールディング法によって行われる鋳造工程中、溶融物がホットランナーノズル１１を介してランナーに入る領域は、最良の機械的特性値、特に最大の機械的強度を有し、これに対して、溶融物の流れの下流側に配置される領域、特に、構造部品２の対称軸の領域は、より低い強度を有する。この場合、ホットランナーノズル１１の構成により、３つ以上のホットランナーノズルを使用することも完全に可能になり、鋳造されたフレーム状の構造部品がホットランナーノズルに面する箇所において、例えば、衝突時に大きな力を吸収する必要がある領域において、機械的特性値を意図的に増大させることが可能になる。対照的に、上記対称軸の領域の低温流の箇所では、制御された破損をもたらすことが可能である。本方法を用いて、構造部品の質量を減少させるように、スプルーからある距離で構造部品２の壁厚を薄くすることが可能である。この壁圧が薄い領域は小さな負荷を受ける領域に関係する。   The instrument 1 for feeding the melt has a feed pipe 9 with a melt inlet 8. Since the supply pipe 9 is connected to the two branch pipes 10, the melt flowing through the supply pipe 9 is divided equally between the two branch pipes 10. The melt flows into the hot runner nozzle 11 through the two branch pipes 10. As a result, the melt flowing through each branch pipe 10 is heated to or substantially maintained at a controlled outlet temperature in the region of the hot runner nozzle 11 located downstream of the branch pipe. Is done. The exit area of the melt from each hot runner nozzle 11 is indicated by reference numeral 12. More specifically, the outlet region 12 is located in the region of the annular runner of the mold corresponding to the structural part 2 formed by the mold in the region of the lateral frame portion 3 after the casting process, more specifically in the lower frame portion 5 than in the upper frame portion 4. Is placed close to. According to the double arrow A, the melt flows from the outlet region 12 of each hot runner nozzle 11 in the direction of the upper frame part 4 and in the direction of the lower frame part 5. The melt flows from the outlet region 12 of the hot runner nozzle 11 to at least the region of the runner having a relatively large cross section, and flows from the region to the region of the runner having a smaller cross section. Each partial stream of the melt discharged from the two hot runner nozzles 11 is at a temperature lower than the melt outlet temperature to the outlet region 12 of the hot runner nozzle 11 and the structure between the two lateral frame parts 3. In the region of the axis of symmetry of the part 2, the partial streams meet in the region of the headrest housing 6 between them or in the middle along the longitudinal direction of the lower frame part 5. Thus, during the casting process preferably carried out by the thixomolding method, the region where the melt enters the runner via the hot runner nozzle 11 has the best mechanical property values, in particular the maximum mechanical strength, Thus, the region arranged downstream of the melt flow, in particular the region of the axis of symmetry of the structural component 2, has a lower strength. In this case, the configuration of the hot runner nozzle 11 also makes it possible to use three or more hot runner nozzles completely. For example, when the cast frame-shaped structural component faces the hot runner nozzle, a collision occurs. In areas where it is sometimes necessary to absorb large forces, it is possible to intentionally increase the mechanical property values. In contrast, it is possible to cause controlled breaks at the cold flow points in the region of the symmetry axis. Using this method, it is possible to reduce the wall thickness of the structural component 2 at a distance from the sprue so as to reduce the mass of the structural component. The region where the wall pressure is low relates to the region subjected to a small load.

１：溶融物を鋳型のランナーに供給するための器具、２：フレーム状の構造部品、３：横方向フレーム部、４：上部フレーム部、５：下部フレーム部、６：収容部、７：開口部、８：溶融物入口、９：供給管、１０：分岐管、１１：ホットランナーノズル、１２：出口領域   1: an instrument for supplying a melt to a mold runner, 2: a frame-like structural component, 3: a lateral frame part, 4: an upper frame part, 5: a lower frame part, 6: an accommodating part, 7: an opening 8: Melt inlet, 9: Supply pipe, 10: Branch pipe, 11: Hot runner nozzle, 12: Outlet area

Claims (11)

鋳造による軽金属合金を使用して、開口部を有するフレーム状の構造部品、特に車両の背もたれ構造またはシートフレーム構造を製造するための方法において、
ａ．金属溶融物が、加熱された少なくとも２つの溶融物供給部に供給され、該溶融物供給部の溶融物出口が鋳型のランナー内に直接通じ、該ランナーが前記構造部品用の前記溶融物を収容するために使用されることと、
ｂ．前記金属溶融物が前記溶融物供給部から前記鋳型の前記ランナー内に供給され、この場合、溶融ストリームが前記ランナーにおいて互いに反対向きの複数方向に流れることと
を特徴とする方法。 In a method for manufacturing a frame-like structural part having an opening, particularly a vehicle backrest structure or a seat frame structure, using a light metal alloy by casting,
a. Metal melt is supplied to at least two heated melt supplies, the melt outlet of the melt supply leads directly into the runner of the mold, and the runner contains the melt for the structural part To be used to
b. The metal melt is fed from the melt feed into the runner of the mold, wherein the melt stream flows in opposite directions in the runner. 前記金属溶融物が、ホットランナーノズルまたは加熱スプルーとして設計された溶融物供給部を介して前記鋳型の前記ランナー内に吐出される請求項１に記載の方法。   The method according to claim 1, wherein the metal melt is discharged into the runner of the mold through a melt supply designed as a hot runner nozzle or a heated sprue. 前記金属溶融物が、前記溶融物供給部を介して前記鋳型の環状のランナーに供給される請求項１または２に記載の方法。   The method according to claim 1, wherein the metal melt is supplied to an annular runner of the mold through the melt supply unit. 前記金属溶融物が、２つまたは４つの溶融物供給部によって前記鋳型の前記ランナーに供給される請求項１〜３のいずれか１項に記載の方法。   The method according to claim 1, wherein the metal melt is fed to the runner of the mold by two or four melt feeds. 前記構造部品が半固体法によって、特にチクソモールディング法またはチクソキャスティング法によって鋳造される請求項１〜４のいずれか１項に記載の方法。   The method according to claim 1, wherein the structural part is cast by a semi-solid method, in particular by a thixomolding method or a thixocasting method. 前記構造部品が、圧力ダイカストによって、特にホットチャンバ圧力ダイカスト、コールドチャンバ圧力ダイカストまたは減圧ダイカストによって鋳造される請求項１〜４のいずれか１項に記載の方法。   5. A method according to any one of the preceding claims, wherein the structural part is cast by pressure die casting, in particular by hot chamber pressure die casting, cold chamber pressure die casting or vacuum die casting. 前記金属溶融物が、前記溶融物供給部を介して前記鋳型の前記ランナーの領域内に吐出され、前記金属溶融物が吐出される当該ランナーの領域は、完成した構造部品の領域における増大した機械的負荷を受ける領域に対応する請求項１〜６のいずれか１項に記載の方法。   The metal melt is discharged into the runner region of the mold via the melt supply, and the runner region into which the metal melt is discharged is an increased machine in the region of the finished structural component. 7. A method according to any one of claims 1 to 6 corresponding to an area subject to static load. 前記金属溶融物が、前記溶融物供給部を介して前記鋳型の前記ランナーの領域内に吐出され、前記金属溶融物が吐出される当該前記ランナーの領域は、完成したフレーム状の構造部品の領域おける横方向フレーム部を形成する領域に対応し、特に、シートフレーム構造を収容するための背もたれ構造の軸受収容部に隣接して配置される前記背もたれ構造の横方向フレーム部を形成する領域に対応する請求項１〜７のいずれか１項に記載の方法。   The metal melt is discharged into the runner region of the mold through the melt supply unit, and the runner region from which the metal melt is discharged is a region of a completed frame-like structural component. Corresponding to the region forming the lateral frame portion in the seat frame, particularly corresponding to the region forming the lateral frame portion of the backrest structure arranged adjacent to the bearing housing portion of the backrest structure for housing the seat frame structure The method according to any one of claims 1 to 7. 前記金属溶融物の低温流領域が、小さな機械的負荷を受ける前記構造部品の規定領域に配置される請求項１〜８のいずれか１項に記載の方法。   9. A method according to any one of the preceding claims, wherein the cold flow region of the metal melt is disposed in a defined region of the structural component that is subjected to a small mechanical load. 前記溶融物供給部の前記溶融物出口を起点として、前記金属溶融物が、少なくとも、比較的大きな断面を有する前記鋳型の前記ランナーの領域に流れ、該領域から、より小さな断面を有する前記ランナーの領域に流れる請求項１〜９のいずれか１項に記載の方法。   Starting from the melt outlet of the melt supply section, the metal melt flows at least into the runner region of the mold having a relatively large cross section and from the region of the runner having a smaller cross section. The method according to claim 1, wherein the method flows in the region. 前記金属溶融物がマグネシウムを実質的に含む請求項１〜１０のいずれか１項に記載の方法。   The method of any one of claims 1 to 10, wherein the metal melt substantially comprises magnesium.
JP2009236845A 2008-10-17 2009-10-14 Method for manufacturing a frame-like structural part Expired - Fee Related JP5133959B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008052062.4 2008-10-17
DE200810052062 DE102008052062A1 (en) 2008-10-17 2008-10-17 Method for producing a frame-like structural component

Publications (2)

Publication Number Publication Date
JP2010094737A true JP2010094737A (en) 2010-04-30
JP5133959B2 JP5133959B2 (en) 2013-01-30

Family

ID=42034931

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2009236845A Expired - Fee Related JP5133959B2 (en) 2008-10-17 2009-10-14 Method for manufacturing a frame-like structural part

Country Status (3)

Country Link
JP (1) JP5133959B2 (en)
CA (1) CA2681791C (en)
DE (1) DE102008052062A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103331432A (en) * 2013-07-04 2013-10-02 上海交通大学 Vacuum die casting method of rare earth-magnesium alloy
CN105215328A (en) * 2015-11-10 2016-01-06 北京科技大学 The extrusion casint system of the short vehicle frame of a kind of wheelchair
CN105598374A (en) * 2015-12-28 2016-05-25 共享铸钢有限公司 Casting system design method for preventing root crack defect of inner gate of casting
CN105598376A (en) * 2016-01-13 2016-05-25 共享装备股份有限公司 Combined type pouring basin

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010053125A1 (en) 2010-12-01 2012-06-06 Volkswagen Ag Method for producing a series of cast components and device for producing a cast component
DE102012024926A1 (en) 2012-12-19 2014-06-26 Volkswagen Aktiengesellschaft Casting apparatus, useful for a hot-runner molding method for manufacturing e.g. aluminum component, comprises a mold cavity comprising two inlet openings, and casting unit comprising a cavity and partially heatable casting channels
DE102013105433B3 (en) 2013-05-27 2014-05-22 Schuler Pressen Gmbh Casting device with a loop and casting process
DE102014011587A1 (en) 2014-08-02 2016-02-04 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Armrest for a vehicle seat and vehicle seat with the armrest
CN105149548A (en) * 2015-10-22 2015-12-16 富乐压铸(太仓)有限公司 Sprue used for exterior face of automobile emergency key bit
DE102016214107A1 (en) * 2016-08-01 2018-02-01 Volkswagen Aktiengesellschaft Plasma cleaning of die-cast structural components for motor vehicles and production of a body-component composite with a plasma-cleaned die-cast structural component
CN106694850A (en) * 2017-03-20 2017-05-24 中信戴卡股份有限公司 Pouring device for high-pressure casting mold
CN106735074A (en) * 2017-03-20 2017-05-31 中信戴卡股份有限公司 A kind of apparatus for pouring for high-pressure casting mould

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08267210A (en) * 1995-01-19 1996-10-15 Nippon Light Metal Co Ltd Large sized integrated thin cast product, production thereof and metallic mold for casting
JPH11314148A (en) * 1998-05-01 1999-11-16 Fujio Yamada Method for injection-forming metallic material using hotrunner die device and hot-runner die device therefor
JP2000343199A (en) * 1999-06-08 2000-12-12 Mitsui Mining & Smelting Co Ltd Die scheme, die cast casting, and die cast product
JP2000351057A (en) * 1999-06-14 2000-12-19 Araco Corp Three dimensional structural body of light alloy and its production
JP2003039158A (en) * 2001-07-30 2003-02-12 Matsushita Electric Ind Co Ltd Metal injection molding method

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69606712T2 (en) 1995-07-28 2000-08-31 Hoover Universal, Inc. FRAME FOR VEHICLES
DE19639053A1 (en) * 1996-09-24 1998-03-26 Daimler Benz Ag Die casting machine
DE19639052C2 (en) * 1996-09-24 1998-07-09 Daimler Benz Ag Thin-walled die-cast part made of light metal as a structural component for car bodies
AUPP060497A0 (en) * 1997-11-28 1998-01-08 Commonwealth Scientific And Industrial Research Organisation Magnesium pressure die casting
JP3394244B2 (en) * 1999-02-10 2003-04-07 株式会社十王 Mold for hot runner type injection molding machine and method for manufacturing the mold
JP3370007B2 (en) * 1999-03-30 2003-01-27 マツダ株式会社 Injection molding apparatus and injection molding method for metal member
JP4348808B2 (en) 1999-12-27 2009-10-21 トヨタ紡織株式会社 Mounting structure of functional members to the frame
IT1320808B1 (en) 2000-08-28 2003-12-10 Magnesium Products Of Italy S BACK OF THE VEHICLE SEAT, PARTICULARLY OF THE REAR SEAT.
KR100569367B1 (en) * 2004-05-03 2006-04-07 현대자동차주식회사 Magnesium cusion panel for automotive-seat system
KR100590947B1 (en) 2004-06-07 2006-06-19 현대자동차주식회사 Magnesium back frame for automotive-seat system and its manufacturing method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08267210A (en) * 1995-01-19 1996-10-15 Nippon Light Metal Co Ltd Large sized integrated thin cast product, production thereof and metallic mold for casting
JPH11314148A (en) * 1998-05-01 1999-11-16 Fujio Yamada Method for injection-forming metallic material using hotrunner die device and hot-runner die device therefor
JP2000343199A (en) * 1999-06-08 2000-12-12 Mitsui Mining & Smelting Co Ltd Die scheme, die cast casting, and die cast product
JP2000351057A (en) * 1999-06-14 2000-12-19 Araco Corp Three dimensional structural body of light alloy and its production
JP2003039158A (en) * 2001-07-30 2003-02-12 Matsushita Electric Ind Co Ltd Metal injection molding method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103331432A (en) * 2013-07-04 2013-10-02 上海交通大学 Vacuum die casting method of rare earth-magnesium alloy
CN105215328A (en) * 2015-11-10 2016-01-06 北京科技大学 The extrusion casint system of the short vehicle frame of a kind of wheelchair
CN105598374A (en) * 2015-12-28 2016-05-25 共享铸钢有限公司 Casting system design method for preventing root crack defect of inner gate of casting
CN105598376A (en) * 2016-01-13 2016-05-25 共享装备股份有限公司 Combined type pouring basin

Also Published As

Publication number Publication date
JP5133959B2 (en) 2013-01-30
DE102008052062A1 (en) 2010-04-22
CA2681791A1 (en) 2010-04-17
CA2681791C (en) 2013-08-20

Similar Documents

Publication Publication Date Title
JP5133959B2 (en) Method for manufacturing a frame-like structural part
CN101497117B (en) Die and method of manufacturing cast product
KR100743077B1 (en) Method and apparatus for producing semisolid metal slurries and shaped components
KR100685233B1 (en) Magnesium pressure casting
CN101384385B (en) Metallic-molding-material runner having equilibrated flow
US5979535A (en) Methods for semi-melting injection molding
US20170333981A1 (en) Casting process and sand mould provided with a gating system for producing at least partly thin walled aluminium casts with sand moulding technology by means of gravity casting
JP2005350048A (en) Magnesium alloy material seat back frame for automobile and its molding method
DE102015210403A1 (en) Angular system for a die-casting mold
JP2004505785A5 (en)
US20080164290A1 (en) Adaptive and universal hot runner manifold for die casting
US20080142184A1 (en) Dual plunger gooseneck for magnesium die casting
US20080115907A1 (en) Hot runner magnesium casting system and apparatus
CS343590A3 (en) Continuous, horizontally asymmetric, steel railway rail, process forproducing thereof and apparatus for making the same
JP5136169B2 (en) Semi-molten metal mold
JP2009090303A (en) Low-pressure casting apparatus and low-pressure casting method
US6401800B1 (en) Device and method for continuous casting of workpieces
JP2005305466A (en) Molten metal forging apparatus and molten metal forging method
JP6452188B2 (en) High pressure casting method
JP3646662B2 (en) Mold for casting
JP2007029986A (en) Method for casting parallel crosses-shaped cast product, metallic mold for casting parallel crosses-shaped cast product, and parallel crosses-shaped cast product
JP5871399B2 (en) Vehicle wheel and method of manufacturing the same
CN217370408U (en) Die-casting die for producing high-strength electric vehicle front fork
JP2008213610A (en) Wheel for vehicle
US10682695B2 (en) Method for the semi-permanent mold casting process

Legal Events

Date Code Title Description
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20110624

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110628

A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A712

Effective date: 20110629

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110927

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20120605

RD02 Notification of acceptance of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7422

Effective date: 20120822

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20120918

A911 Transfer of reconsideration by examiner before appeal (zenchi)

Free format text: JAPANESE INTERMEDIATE CODE: A911

Effective date: 20120925

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20121031

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20121108

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20151116

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

Ref document number: 5133959

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees