JPS58113367A - Header plate material for aluminum radiator - Google Patents
Header plate material for aluminum radiatorInfo
- Publication number
- JPS58113367A JPS58113367A JP20986681A JP20986681A JPS58113367A JP S58113367 A JPS58113367 A JP S58113367A JP 20986681 A JP20986681 A JP 20986681A JP 20986681 A JP20986681 A JP 20986681A JP S58113367 A JPS58113367 A JP S58113367A
- Authority
- JP
- Japan
- Prior art keywords
- header plate
- base material
- aluminum
- coating layer
- cladding
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
Abstract
Description
【発明の詳細な説明】
この発明はアルミニウム製ラジェータに於いて、コア部
と上下タンクとの連結部に用いるヘッダプレート材の改
良に関し、防食性に勝れ、ラジェータの耐久性を向上す
ることのできるアルミニウム製ラジェータ用ヘッダプレ
ート材を得ることを目的としている。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in the header plate material used for the connection between the core and the upper and lower tanks in an aluminum radiator, which has excellent corrosion resistance and improves the durability of the radiator. The aim is to obtain a header plate material for an aluminum radiator that can be produced.
水冷エンジンの冷却水放熱に用いるラジェータは、例え
ば第１図に示すように、多数の通液管１，１とフィン２
．２とから成るコア部３の上下に、それぞれヘッダプレ
ート４を介して上タンク５と下タンク６とを結合してい
る。−・ラダプレート４と各タンク５．６との結合部は
、各タンク５．６が合成樹脂製の場合、第２図に示すよ
うに、タンク５ （又は６）の下面（又は上面）とヘッ
ダプレート４の上面（又は下面）との間にバッキング７
を挾持させ、ヘッダプレート４の周縁部を折り曲げて上
タンク５の↑゛端部外周に形成したフランジ部５ａを抑
え、タンク５をヘラ、・ダブレート４に水密に結合して
いる。A radiator used for cooling water heat dissipation in a water-cooled engine has a large number of liquid passage pipes 1, 1 and fins 2, as shown in FIG.
．． An upper tank 5 and a lower tank 6 are connected to the upper and lower sides of the core part 3 consisting of 2 and 3 through header plates 4, respectively. - If each tank 5.6 is made of synthetic resin, the joint between the rudder plate 4 and each tank 5.6 should be connected to the bottom (or top) of the tank 5 (or 6) as shown in Figure 2. Backing 7 between the top (or bottom) of header plate 4
The tank 5 is connected to the spatula/dub plate 4 in a watertight manner by holding the flange 5a formed on the outer circumference of the ↑゛ end of the upper tank 5 by bending the peripheral edge of the header plate 4.
コア部３を構成する多数の通液管１．１の上下両端部は
、それぞれヘッダプレート４に形成した通孔８．８を隙
間なく貫通し、各通孔８．８の開口周縁部−（ニー形成
した立壁９．９の内周面と通液管１．１の外周面とをろ
う付けして結合するとともに貫通部の水密を保持してい
る。Both upper and lower ends of the large number of liquid passage tubes 1.1 constituting the core part 3 pass through through holes 8.8 formed in the header plate 4 without gaps, and the opening peripheral edge of each through hole 8.8 -( The inner circumferential surface of the knee-formed standing wall 9.9 and the outer circumferential surface of the liquid passage pipe 1.1 are joined together by brazing, and the penetrating portion is kept watertight.
このように、上下タンク５．６の一面を塞ぐとともにこ
のタンク５．６とコア部３とを連結するヘッダプレート
４には、第３図に示すようにアルミニウムの母材９の片
面に、このヘッダプレート４と通液管１．１の端部をろ
う付けするためのろう材１０を薄く積層したクラツド材
が使用される。アルミニウムの母材９は例えば、アルミ
ニウムにケイ素９〜１０．５％、マグネシウム１〜２％
を加えたＪＩＳ Ａ３００３材のよう々アルミニウム合
金を使用するが、このようにアルミニウムの母材９を直
接冷却水と接触する部分に使用すると、母材９に腐食に
よりピンホールを生ずる孔食が起り易い。本発明者が行
なった実験によると、Ａ３００３材をヘッダプレートに
使用したラジェータに、塩素イオン（ｅ）１− ）を１
００ｐｐ’ｎｓ炭酸イオン（ＨＯＯ，−）を２００ ｐ
ｐｍ ％硫酸を１ ｐｐｍそれぞれ含む８８°Ｃの試験
水を、毎分６０／の割合で循環させる試験を６ケ月間続
けると、ヘッダプレート４を貫通する孔食が発生し、水
漏れを生じた。As shown in FIG. 3, the header plate 4, which closes one side of the upper and lower tanks 5.6 and connects the tank 5.6 and the core part 3, has this plate on one side of the aluminum base material 9, as shown in FIG. A cladding material is used in which a thin layer of brazing material 10 is used to braze the header plate 4 and the end of the liquid passage pipe 1.1. The aluminum base material 9 is, for example, aluminum with 9 to 10.5% silicon and 1 to 2% magnesium.
An aluminum alloy of JIS A3003 material is used, but if the aluminum base material 9 is used in parts that come into direct contact with cooling water, pitting corrosion that causes pinholes will occur in the base material 9. easy. According to experiments conducted by the present inventor, chlorine ions (e) 1-) were added to a radiator using A3003 material for the header plate.
00pp'ns carbonate ion (HOO,-) at 200p
When a test was continued for 6 months in which test water at 88°C containing 1 ppm of sulfuric acid was circulated at a rate of 60/min, pitting corrosion occurred through the header plate 4, causing water leakage. .
このため、従来も第４図に示すように、ヘッダプレート
４のろう材１ｏを積層した面と反対面に、アルミニウム
に亜鉛（Ｚｎ）を０８〜１３％含んだＪＩＳ Ａ７０７
２材による被覆層１１を形成Ｌ、この被Ｎ層１１を犠牲
腐食させることにより、母材９の腐食を防止することが
行なわれている。ところが、このようにＪ工５Ａ７０７
２ｔｔによる被覆層を形成した材料よりなるヘッダプレ
ート４は、通常の条件に於いては十分な防食効果が得ら
れるが、特に条件が厳しい部分に於いては防食効果が不
十分となる。即ち、ヘッダプレート４とバッキング７と
が接触する部分にはごく薄い水の層が形成されるが、こ
のような部分には局部電池が形成され易く、所謂隙間腐
食が生じ易い。本発明者が、第４図に示すようにＪＩＳ
Ａ ７０７２材による被覆層を形成した材料をヘッダプ
レート４として前述と同じ条件で６ケ月の循環試験を行
なった所、他の部分では母材９の腐食はほとんど生じな
かったのに対し、バッキング７と接触する部分には、母
材９を貫通する孔食が発生した。For this reason, conventionally, as shown in Fig. 4, JIS A707 aluminum containing 08 to 13% zinc (Zn) was used on the opposite side of the header plate 4 to the side on which the brazing filler metal 1o was laminated.
Corrosion of the base material 9 is prevented by forming a coating layer 11 of two materials and sacrificially corroding the N layer 11. However, like this, J Engineering 5A707
The header plate 4 made of a material with a 2tt coating layer has a sufficient anticorrosion effect under normal conditions, but the anticorrosion effect becomes insufficient in areas where the conditions are particularly severe. That is, although a very thin layer of water is formed at the portion where the header plate 4 and the backing 7 contact, a local battery is likely to be formed in such a portion, and so-called crevice corrosion is likely to occur. As shown in FIG.
When a 6-month circulation test was conducted under the same conditions as described above using the header plate 4 with a coating layer made of A 7072 material, almost no corrosion occurred in the base material 9 in other parts, but the backing 7 Pitting corrosion that penetrated the base material 9 occurred in the area that was in contact with the base material 9.
本発明は、上述した従来品の有する欠点を解消し、十分
な防食効果を有し、ラジェータの耐久性を高めることの
できるアルミニウム製ラジェータ用ヘッダプレート材を
提供せんとするものである。The present invention aims to provide an aluminum header plate material for a radiator that eliminates the drawbacks of the conventional products described above, has a sufficient anticorrosive effect, and can enhance the durability of the radiator.
以下、本発明を説明する。The present invention will be explained below.
本発明のヘッダプレート材の構成自体は、第４図に示し
た従来からのものと同様である。即ち、アルミニウム合
金製の母材９の片面にろう材１０を５〜１０％のクラツ
ド率（全体の厚さに対する被覆層の厚さの百分率）でク
ラッド法により積層するとともに、他面に犠牲腐食すべ
き被覆層１１を５〜５０％のクラツド率で同様に積層し
ている。本発明のヘッダプレート材の特徴は、被覆層１
１の組成を工夫することにより、防食効果をより高めた
点にある。即ち、本発明のヘッダプレート材の被覆層１
１は、０３％以下のケイ素（ｓｌ）と、０７％以下の鉄
ｒｙｅ）と、０１％以下の銅（Ｏｕ）と、０．２％以下
のマンガン（Ｍｎ）と、０．３％〜１．１％のマグネシ
ウム（Ｍｇ）と、０５〜３％の亜鉛ｒＺｎ） トをロウ
付は後に残存するだけの量を含み、残部をアルミニウム
（Ａ１）としている。ろう付けの前後に於ける組成が変
化する程度は、ろう付けの方法により変わるが、真空ろ
う付けの場合は、マグネシウム、亜鉛を予め十分に多く
含ませておき、ノコロック法、Ｆ、Ｅ、法による場合は
これらを少し条目に含ませておけば良い。The structure itself of the header plate material of the present invention is similar to the conventional one shown in FIG. That is, the brazing filler metal 10 is laminated on one side of the base material 9 made of aluminum alloy by the cladding method at a cladding ratio of 5 to 10% (the percentage of the thickness of the coating layer relative to the total thickness), and the other side is subjected to sacrificial corrosion. The covering layer 11 to be covered is similarly laminated with a cladding ratio of 5 to 50%. The characteristics of the header plate material of the present invention are that the coating layer 1
By devising the composition of No. 1, the anticorrosive effect was further enhanced. That is, the coating layer 1 of the header plate material of the present invention
1 contains 03% or less silicon (SL), 07% or less iron rye), 01% or less copper (Ou), 0.2% or less manganese (Mn), and 0.3% to 1 .1% magnesium (Mg) and 0.5 to 3% zinc (rZn).The brazing process contains only the amount that remains after brazing, and the remainder is aluminum (A1). The degree to which the composition changes before and after brazing varies depending on the brazing method, but in the case of vacuum brazing, magnesium and zinc are pre-contained in sufficient amounts, and the Nocolok method, F, E, and If this is the case, it is sufficient to include some of these in the article.
本発明のアルミニウム製ラジェータ用ヘッダプレート材
は、以上に述べたような構成の被覆層１１を有するため
、従来のＪ工５Ａ７ｏ７２材にょる被覆層を有するヘッ
ダプレート材に比べて防食効果に勝れ、隙間腐食にも十
分に対応することができ、バッキング７の接触部分のよ
うに条件の厳しい部分でも水漏れに至るような母材９に
ついての孔食の発生を十分に防止することができる。Since the aluminum header plate material for a radiator of the present invention has the coating layer 11 having the structure described above, it has a superior corrosion prevention effect compared to a header plate material having a coating layer made of the conventional J-K5A7O72 material. It is also possible to sufficiently deal with crevice corrosion, and to sufficiently prevent the occurrence of pitting corrosion in the base material 9 that would lead to water leakage even in areas where the conditions are severe, such as the contact area of the backing 7.
次に本発明者が、本発明の実施例について行なった実験
について説明する。Next, experiments conducted by the present inventor regarding an example of the present invention will be described.
実施例１
ケイ素０１４％、鉄０．１６％、銅０．０１％、マンガ
ン０，０１％、マグネシウム０，５０％、亜鉛１．０％
を含み、残部をアルミニウムと避けることのできないご
く微量の不純物とした合金により母材の片面に被覆層１
１を形成した。Example 1 Silicon 0.14%, iron 0.16%, copper 0.01%, manganese 0.01%, magnesium 0.50%, zinc 1.0%
A coating layer 1 is formed on one side of the base material by an alloy containing aluminum with the remainder being aluminum and a very small amount of unavoidable impurities.
1 was formed.
実施例２
ケイ素０．１５％、鉄０．２０％、銅０．０１％、マン
ガン０．０１％、マグネシウム０．５０％、亜鉛０５％
を含み、残部をアルミニウムと避けることのできないご
く微量の不純物とした合金により母材の片面に被覆層１
１を形成した。Example 2 Silicon 0.15%, iron 0.20%, copper 0.01%, manganese 0.01%, magnesium 0.50%, zinc 05%
A coating layer 1 is formed on one side of the base material by an alloy containing aluminum with the remainder being aluminum and a very small amount of unavoidable impurities.
1 was formed.
実施例３
ケイ素０．２０％、鉄０．１８％、銅００１％、マンガ
ン０．０１％、マグネシウム０．３０％、亜鉛１０％を
含み、残部をアルミニウムと避けることのできないごく
微量の不純物とした合金により母材の片面に被覆層１１
を形成した。Example 3 Contains 0.20% silicon, 0.18% iron, 0.01% copper, 0.01% manganese, 0.30% magnesium, 10% zinc, and the balance is aluminum and unavoidable trace impurities. A coating layer 11 is formed on one side of the base material using a
was formed.
実施例４
ケイ素０．１６％、鉄０．１８％、銅０．０１％、マン
ガン０．０１％、マグネシウム０．３０％、亜鉛０５％
を含み、残部をアルミニウムと避けることのできないご
く微量の不純物とした合金により母材の片面に被覆層１
１を形成した。Example 4 Silicon 0.16%, iron 0.18%, copper 0.01%, manganese 0.01%, magnesium 0.30%, zinc 05%
A coating layer 1 is formed on one side of the base material by an alloy containing aluminum with the remainder being aluminum and a very small amount of unavoidable impurities.
1 was formed.
実施例５
ケイ素０．２５％、鉄０，６５％、銅０．０７％、マン
ガン０．１５％、マグネシウム０．９０％、亜鉛２５％
を含み、残部をアルミニウムと避けることのできないご
く微量の不純物とした合金により母材の片面に被覆層１
１を形成した。Example 5 Silicon 0.25%, iron 0.65%, copper 0.07%, manganese 0.15%, magnesium 0.90%, zinc 25%
A coating layer 1 is formed on one side of the base material by an alloy containing aluminum with the remainder being aluminum and a very small amount of unavoidable impurities.
1 was formed.
実施例６
ケイ素０．２８％、鉄０．４５％、銅０．０５％、マン
ガン０．１８％、マグネシウム１．１％、亜鉛２．０％
を含み、残部をアルミニウムと避けることのできないご
く微量の不純物とした合金により母材の片面に被覆層１
１を形成した。Example 6 Silicon 0.28%, iron 0.45%, copper 0.05%, manganese 0.18%, magnesium 1.1%, zinc 2.0%
A coating layer 1 is formed on one side of the base material by an alloy containing aluminum with the remainder being aluminum and a very small amount of unavoidable impurities.
1 was formed.
以上に示した実施例１〜６のヘッダプレート材によりヘ
ッダプレート４を構成したラジェータについて、前述し
た実験と同じ条件で６ケ月の循環試験を行なった所、バ
ッキング７との接触部分も含めて、腐食が発生した場合
でも被覆層１１の範囲に止まり、母材９にまで腐食が及
ぶことはなかった。A 6-month circulation test was conducted on the radiator whose header plate 4 was made of the header plate materials of Examples 1 to 6 shown above under the same conditions as the experiment described above. Even if corrosion occurred, it was limited to the coating layer 11 and did not extend to the base material 9.
第１図はラジェータを例示する正面図、第２図は第１図
の拡大Ａ−Ａ断面図、第３図はろう材のみを積層したヘ
ッダプレート材を示す第２図のＢ部拡大断面図、第４図
は防食のための被覆層を形成したヘッダプレート材を示
す第３図同様の断面図である。
に通液管、２：フィン、３：コア部、・１：ヘッダプレ
ート、５：上タンク、６：下タンク７：バッキング、８
：通孔、９：母材、１０：ろう材、１１：被覆層。
特許出願人 日本ラヂヱーター株式会社代 理
人 小 山 欽 造（ほか１名）
第１図
６
第３図
第２図
美４図Fig. 1 is a front view illustrating a radiator, Fig. 2 is an enlarged sectional view taken along line A-A in Fig. 1, and Fig. 3 is an enlarged sectional view of part B in Fig. 2 showing a header plate material laminated with only brazing material. , FIG. 4 is a sectional view similar to FIG. 3, showing a header plate material on which a coating layer for corrosion protection is formed. Liquid passage pipe, 2: Fin, 3: Core part, 1: Header plate, 5: Upper tank, 6: Lower tank 7: Backing, 8
: Through hole, 9: Base material, 10: Brazing material, 11: Covering layer. Patent applicant: Japan Radiator Co., Ltd.
People Kinzo Koyama (and 1 other person) Figure 1 6 Figure 3 Figure 2 Bi 4
Claims (1)
Ｏ）を５〜１５％のクラツド率でクラッド法により積
層し、上記母材（９）の他面（二は、０．３％以下のケ
イ素と０．７％以下の鉄と、０．１％以下の銅と、０，
２％以下のマンガンと、０．３〜１．１％のマグネシウ
ムと、０５〜３％の亜鉛とをろう付は後にも含有するだ
け含み、残部はアルミニウムとして成る合金の被覆層（
１１）を５〜５０％のクラツド率でクラッド法により形
成して成るアルミニウム製ラジェータ用ヘッダプレート
材。One side of the aluminum alloy base material (9) (: brazing metal (l)
O) is laminated by a cladding method at a cladding ratio of 5 to 15%, and the other side of the base material (9) is made of 0.3% or less silicon, 0.7% or less iron, and 0.1% or less silicon. % copper and 0,
A coating layer of an alloy containing up to 2% manganese, 0.3-1.1% magnesium, and 0.5-3% zinc as required for brazing, with the remainder being aluminum (
11) by a cladding method with a cladding ratio of 5 to 50%. An aluminum header plate material for a radiator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20986681A JPS58113367A (en) | 1981-12-28 | 1981-12-28 | Header plate material for aluminum radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20986681A JPS58113367A (en) | 1981-12-28 | 1981-12-28 | Header plate material for aluminum radiator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58113367A true JPS58113367A (en) | 1983-07-06 |
| JPS6328704B2 JPS6328704B2 (en) | 1988-06-09 |
Family
ID=16579921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20986681A Granted JPS58113367A (en) | 1981-12-28 | 1981-12-28 | Header plate material for aluminum radiator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58113367A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63140765A (en) * | 1986-12-04 | 1988-06-13 | Calsonic Corp | Fitting member for heat exchanger made of aluminum |
| JPH04371368A (en) * | 1991-06-19 | 1992-12-24 | Nippon Light Metal Co Ltd | Brazing sheet having excellent corrosion resistance and production thereof |
| JP2002011569A (en) * | 2000-06-27 | 2002-01-15 | Denso Corp | Heat exchanger and its manufacture |
| US20180214964A1 (en) * | 2015-07-29 | 2018-08-02 | Uacj Corporation | Method of manufacturing an aluminum structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4954250A (en) * | 1972-09-30 | 1974-05-27 | ||
| JPS5523829A (en) * | 1978-08-07 | 1980-02-20 | Toyo Radiator Kk | Header plate for material aluminium-made radiator |
| JPS565958A (en) * | 1979-06-27 | 1981-01-22 | Kobe Steel Ltd | Manufacture of galvanic anode material |
| JPS5822158A (en) * | 1981-08-03 | 1983-02-09 | 三菱アルミニウム株式会社 | Al alloy composite material for heat exchanger having excellent hole corrosion resistance |
-
1981
- 1981-12-28 JP JP20986681A patent/JPS58113367A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4954250A (en) * | 1972-09-30 | 1974-05-27 | ||
| JPS5523829A (en) * | 1978-08-07 | 1980-02-20 | Toyo Radiator Kk | Header plate for material aluminium-made radiator |
| JPS565958A (en) * | 1979-06-27 | 1981-01-22 | Kobe Steel Ltd | Manufacture of galvanic anode material |
| JPS5822158A (en) * | 1981-08-03 | 1983-02-09 | 三菱アルミニウム株式会社 | Al alloy composite material for heat exchanger having excellent hole corrosion resistance |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63140765A (en) * | 1986-12-04 | 1988-06-13 | Calsonic Corp | Fitting member for heat exchanger made of aluminum |
| JPH04371368A (en) * | 1991-06-19 | 1992-12-24 | Nippon Light Metal Co Ltd | Brazing sheet having excellent corrosion resistance and production thereof |
| JP2002011569A (en) * | 2000-06-27 | 2002-01-15 | Denso Corp | Heat exchanger and its manufacture |
| JP4560902B2 (en) * | 2000-06-27 | 2010-10-13 | 株式会社デンソー | Heat exchanger and manufacturing method thereof |
| US20180214964A1 (en) * | 2015-07-29 | 2018-08-02 | Uacj Corporation | Method of manufacturing an aluminum structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6328704B2 (en) | 1988-06-09 |
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