JPH0371496B2 - - Google Patents
Info
- Publication number
- JPH0371496B2 JPH0371496B2 JP18524887A JP18524887A JPH0371496B2 JP H0371496 B2 JPH0371496 B2 JP H0371496B2 JP 18524887 A JP18524887 A JP 18524887A JP 18524887 A JP18524887 A JP 18524887A JP H0371496 B2 JPH0371496 B2 JP H0371496B2
- Authority
- JP
- Japan
- Prior art keywords
- aluminum
- alloy
- casting
- brazing
- intake manifold
- 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.)
- Expired
Links
- 238000005266 casting Methods 0.000 claims description 28
- 229910045601 alloy Inorganic materials 0.000 claims description 23
- 239000000956 alloy Substances 0.000 claims description 23
- 229910052782 aluminium Inorganic materials 0.000 claims description 22
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 22
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 6
- 229910052749 magnesium Inorganic materials 0.000 claims description 6
- 239000011777 magnesium Substances 0.000 claims description 6
- 229910052725 zinc Inorganic materials 0.000 claims description 6
- 239000011701 zinc Substances 0.000 claims description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- 229910052804 chromium Inorganic materials 0.000 claims description 5
- 239000011651 chromium Substances 0.000 claims description 5
- 239000010936 titanium Substances 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 2
- 238000005219 brazing Methods 0.000 description 19
- 239000000463 material Substances 0.000 description 5
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910018125 Al-Si Inorganic materials 0.000 description 1
- 229910018520 Al—Si Inorganic materials 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 238000003483 aging Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Automatic Cycles, And Cycles In General (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
この発明は、アルミニウム展伸材からなる部品
とアルミニウム鋳物からなる部品とがろう付され
た吸気マニホルドにおけるアルミニウム鋳物から
なる部品を鋳造するための合金に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to an alloy for casting an aluminum casting part in an intake manifold in which a part made of a wrought aluminum material and a part made of an aluminum casting are brazed together. .
この明細書において、「％」は「重量％」を示
すものとする。 In this specification, "%" indicates "% by weight".
従来技術とその問題点
たとえば、電子制御式燃料噴射装置を備えた自
動車エンジン用吸気マニホルドとしては、図面に
示すようなものが考えられる。この吸気マニホル
ド１０は、一端が開口するとともに他端が閉鎖さ
れた主管１と、各一端が主管１に接続された複数
の分岐管２と、主管１の開口端部に設けられたス
ロツトルボデイ取付用フランジ３と、分岐管２の
先端にろう付されたシリンダヘツドへの取付用フ
ランジ４とよりなる。上記吸気マニホルド１０に
おいては、主管１および分岐管２がアルミニウム
展伸材からなり、スロツトルボデイ取付用フラン
ジ３およびシリンダヘツドへの取付用フランジ４
がアルミニウム鋳物からなつて、これらがろう付
されたもの、主管１およびスロツトルボデイ取付
用フランジ３が、両者が一体化されたアルミニウ
ム鋳物からなり、シリンダヘツドへの取付用フラ
ンジ４がアルミニウム鋳物からなり、分岐管２が
アルミニウム展伸材からなつて、これらがろう付
されたものなどがある。上記ろう付は、それぞれ
Al−Si系のろう材を用いて炉中ろう付法、チツ
素ガス雰囲気中での炉中ろう付法、浸漬ろう付
法、真空ろう付法等によつて行なわれる。Al−
Si系のろう材の融点は577〜600℃位であるので、
上記ろう付温度は600〜610℃とされる。したがつ
て、上記鋳物を鋳造するのに用いられる鋳物合金
の融点は600℃以上であることが望ましい。なぜ
ならば、融点が低いとろう付のさいに溶融してし
まいろう付性が低下するからである。また、この
ような鋳物合金には、ろう付性を低下させるよう
な特殊な酸化皮膜を生成する元素が所定量以上含
まれていてはならない。また、上記吸気マニホル
ド用鋳物部品としては、ろう付後の強度も大きく
なければならない。さらに、鋳物合金としては当
然のことながら鋳造性も優れていなければならな
い。Prior Art and its Problems For example, as an intake manifold for an automobile engine equipped with an electronically controlled fuel injection device, the one shown in the drawings can be considered. This intake manifold 10 includes a main pipe 1 with one end open and the other end closed, a plurality of branch pipes 2 each having one end connected to the main pipe 1, and a throttle body mounting portion provided at the open end of the main pipe 1. It consists of a flange 3 and a flange 4 for attachment to the cylinder head which is brazed to the tip of the branch pipe 2. In the above-mentioned intake manifold 10, the main pipe 1 and the branch pipe 2 are made of expanded aluminum material, and the flange 3 for attaching the throttle body and the flange 4 for attaching to the cylinder head are provided.
are made of aluminum castings and are brazed together, the main pipe 1 and the throttle body mounting flange 3 are made of aluminum castings in which both are integrated, and the flange 4 for mounting to the cylinder head is made of aluminum castings, There is one in which the branch pipe 2 is made of aluminum wrought material and these are brazed. The above brazing is
Brazing is carried out using an Al-Si brazing material by a furnace brazing method, a furnace brazing method in a nitrogen gas atmosphere, an immersion brazing method, a vacuum brazing method, etc. Al−
The melting point of Si-based brazing filler metal is around 577-600℃, so
The brazing temperature mentioned above is 600 to 610°C. Therefore, it is desirable that the melting point of the casting alloy used to cast the above-mentioned casting is 600°C or higher. This is because if the melting point is low, it will melt during brazing and the brazing properties will deteriorate. Further, such a casting alloy must not contain more than a predetermined amount of elements that form a special oxide film that reduces brazability. Furthermore, the above-mentioned cast parts for the intake manifold must also have high strength after brazing. Furthermore, as a casting alloy, naturally it must also have excellent castability.
しかしながら、従来、上記すべての条件を満た
す吸気マニホルド用アルミニウム鋳物合金は存在
しなかつたのが実情である。 However, the reality is that there has hitherto been no aluminum casting alloy for intake manifolds that satisfies all of the above conditions.
この発明の目的は、上記すべての条件を見た
し、ろう付性に優れているとともに強度が大き
く、しかも鋳造性の良好な吸気マニホルド用アル
ミニウム鋳物合金を提供することにある。 An object of the present invention is to provide an aluminum casting alloy for an intake manifold that satisfies all of the above conditions and has excellent brazing properties, high strength, and good castability.
問題点を解決するための手段
この発明による吸気マニホルド用アルミニウム
鋳物合金は、アルミニウム展伸材からなる部品と
アルミニウム鋳物からなる部品とがろう付された
吸気マニホルドにおけるアルミニウム鋳物からな
る部品を鋳造するための合金であつて、亜鉛3.0
〜6.5％、マグネシウム0.3〜0.7％、クロム0.2〜
0.5％およびチタン0.1〜0.3％を含有し、残部アル
ミニウムおよび不可避不純物からなるものであ
る。Means for Solving the Problems The aluminum casting alloy for an intake manifold according to the present invention is suitable for casting a part made of an aluminum casting in an intake manifold in which a part made of a wrought aluminum material and a part made of an aluminum casting are brazed together. Zinc 3.0
~6.5%, Magnesium 0.3~0.7%, Chromium 0.2~
0.5% and 0.1-0.3% titanium, with the balance consisting of aluminum and unavoidable impurities.
上記において、亜鉛およびマグネシウムは、ア
ルミニウム鋳物合金の強度、特に時効硬化による
ろう付後の強度を大きくする性質を有する。しか
しながら、亜鉛およびマグネシウムの含有量がそ
れぞれ下限値未満であると、上記効果が得られな
い。しかも、亜鉛の含有量が上限値を越えると応
力腐食割れが発生し、マグネシウムの含有量が上
限値を越えると融点が低くなるとともに鋳物の表
面に特殊な酸化皮膜が生成してろう付性が悪くな
る。したがつて、亜鉛の含有量は3.0〜6.5％、マ
グネシウムの含有量は0.3〜0.7％の範囲内でそれ
ぞれ選択すべきである。 In the above, zinc and magnesium have the property of increasing the strength of the aluminum casting alloy, especially the strength after brazing due to age hardening. However, if the contents of zinc and magnesium are each less than the lower limit, the above effects cannot be obtained. Furthermore, if the zinc content exceeds the upper limit, stress corrosion cracking will occur, and if the magnesium content exceeds the upper limit, the melting point will decrease and a special oxide film will form on the surface of the casting, impairing its brazeability. Deteriorate. Therefore, the zinc content should be selected within the range of 3.0 to 6.5%, and the magnesium content should be selected within the range of 0.3 to 0.7%.
クロムおよびチタンは、アルミニウム鋳物合金
の結晶粒を微細化させて機械的性質を向上させる
性質を有する。しかしながら、クロムおよびチタ
ンの含有量がそれぞれ下限値未満であると、上記
効果が得られず、しかもそれぞれ上限値を越える
と粗大な金属間化合物を生成する。したがつて、
クロムの含有量は0.2〜0.5％、チタンの含有量は
0.1〜0.3％の範囲内でそれぞれ選択すべきであ
る。 Chromium and titanium have the property of refining the crystal grains of aluminum casting alloys and improving mechanical properties. However, if the contents of chromium and titanium are each less than the lower limit, the above effects cannot be obtained, and if they exceed the upper limit, coarse intermetallic compounds are formed. Therefore,
The content of chromium is 0.2-0.5%, the content of titanium is
Each should be selected within the range of 0.1-0.3%.
実施例
以下、この発明の実施例を比較例とともに示
す。Examples Examples of the present invention will be shown below along with comparative examples.
合金Ａ…亜鉛4.5％、マグネシウム0.5％、クロム
0.4％およびチタン0.2％を含み、残部アルミニ
ウムからなるアルミニウム合金。Alloy A...Zinc 4.5%, Magnesium 0.5%, Chromium
An aluminum alloy containing 0.4% titanium and 0.2% titanium, with the balance being aluminum.
合金Ｂ…亜鉛4.5％、マグネシウム0.4％、クロム
0.3％およびチタン0.2％を含み、残部アルミニ
ウムからなるアルミニウム合金。Alloy B...Zinc 4.5%, Magnesium 0.4%, Chromium
Aluminum alloy containing 0.3% and 0.2% titanium, with the balance being aluminum.
合金Ｃ…亜鉛4.5％、マグネシウム1.0％、クロム
0.5％およびチタン0.3％を含み、残部アルミニ
ウムからなるアルミニウム合金。Alloy C...Zinc 4.5%, Magnesium 1.0%, Chromium
An aluminum alloy containing 0.5% titanium and 0.3% titanium, with the balance being aluminum.
合金Ｄ…JISAC4B合金。Alloy D...JISAC4B alloy.
上記４種のアルミニウム合金を使用して、上述
した吸気マニホルド１０における主管１とスロツ
トルボデイ取付用フランジ３とが一体化された鋳
物を鋳造した。また、JISA6063合金製分岐管２
およびJISA3003合金製分岐管２を用意した。そ
して、上記合金Ａ〜Ｃからなる上記鋳物と
JISA6063合金製分岐管２とを、ケイ素12％を含
むアルミニウム合金ろうを使用し、炉中において
595〜600℃の温度でろう付した。また、上記合金
Ｄからなる上記鋳物とJISA3003合金製分岐管２
とを、ケイ素12％を含むアルミニウム合金ろうを
使用し、炉中において595〜600℃の温度でろう付
した。その結果、合金ＡおよびＢからなる鋳物と
分岐管２とのろう付性は良好であつた。これに対
し、合金ＣおよびＤからなる鋳物と分岐管２との
ろう付性は悪かつた。また、上記合金ＡおよびＢ
の鋳造性は優れており、しかもろう付後の強度も
吸気マニホルド用部品としては十分な強さを有し
ていた。 A casting in which the main pipe 1 and the throttle body mounting flange 3 of the above-mentioned intake manifold 10 were integrated was cast using the above four types of aluminum alloys. In addition, JISA6063 alloy branch pipe 2
And a JISA3003 alloy branch pipe 2 was prepared. and the above-mentioned casting made of the above-mentioned alloys A to C.
JISA6063 alloy branch pipe 2 is placed in a furnace using an aluminum alloy solder containing 12% silicon.
Brazed at a temperature of 595-600℃. In addition, the above casting made of the above alloy D and the branch pipe 2 made of JISA3003 alloy
and were brazed using an aluminum alloy braze containing 12% silicon at a temperature of 595-600°C in a furnace. As a result, the brazing properties between the castings made of alloys A and B and the branch pipe 2 were good. On the other hand, the brazing properties between the castings made of alloys C and D and the branch pipe 2 were poor. In addition, the above alloys A and B
The castability was excellent, and the strength after brazing was also sufficient for use as an intake manifold part.
発明の効果
この発明の合金でつくつた吸気マニホルド用の
鋳物部品は、ろう付性に優れているとともにろう
付後の強度が大きい。また、この発明の合金は鋳
造性も優れている。Effects of the Invention Cast parts for intake manifolds made of the alloy of the present invention have excellent brazing properties and high strength after brazing. The alloy of the present invention also has excellent castability.
図面は電子制御式燃料噴射装置を備えた自動車
エンジン用吸気マニホルドの斜視図である。
The drawing is a perspective view of an intake manifold for an automobile engine equipped with an electronically controlled fuel injection device.
Claims (1)
ウム鋳物からなる部品とがろう付けされた吸気マ
ニホルドにおけるアルミニウム鋳物からなる部品
を鋳造するための合金であつて、亜鉛3.0〜6.5
％、マグネシウム0.3〜0.7％、クロム0.2〜0.5％
およびチタン0.1〜0.3％を含有し、残部アルミニ
ウムおよび不可避不純物からなる吸気マニホルド
用アルミニウム鋳物合金。1. An alloy for casting parts made of aluminum casting in an intake manifold in which parts made of wrought aluminum and parts made of aluminum casting are brazed, and the alloy contains zinc 3.0 to 6.5.
%, magnesium 0.3-0.7%, chromium 0.2-0.5%
An aluminum casting alloy for intake manifolds containing 0.1 to 0.3% titanium and the balance aluminum and unavoidable impurities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18524887A JPS6428339A (en) | 1987-07-23 | 1987-07-23 | Aluminum casting alloy for intake manifold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18524887A JPS6428339A (en) | 1987-07-23 | 1987-07-23 | Aluminum casting alloy for intake manifold |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6696991A Division JPH04350353A (en) | 1991-03-29 | 1991-03-29 | Intake manifold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6428339A JPS6428339A (en) | 1989-01-30 |
| JPH0371496B2 true JPH0371496B2 (en) | 1991-11-13 |
Family
ID=16167484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18524887A Granted JPS6428339A (en) | 1987-07-23 | 1987-07-23 | Aluminum casting alloy for intake manifold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6428339A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107699743A (en) * | 2017-09-30 | 2018-02-16 | 南京惠德机械有限公司 | A kind of production technology of corrosion resistant automobile exhaust system adpting flange |
| JPWO2022211008A1 (en) | 2021-04-01 | 2022-10-06 |
-
1987
- 1987-07-23 JP JP18524887A patent/JPS6428339A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6428339A (en) | 1989-01-30 |
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