JPH0683891B2 - How to cast iron or iron alloy - Google Patents
How to cast iron or iron alloyInfo
- Publication number
- JPH0683891B2 JPH0683891B2 JP59176978A JP17697884A JPH0683891B2 JP H0683891 B2 JPH0683891 B2 JP H0683891B2 JP 59176978 A JP59176978 A JP 59176978A JP 17697884 A JP17697884 A JP 17697884A JP H0683891 B2 JPH0683891 B2 JP H0683891B2
- Authority
- JP
- Japan
- Prior art keywords
- iron
- alloy
- layer
- aluminum
- cast
- 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 - Lifetime
Links
Landscapes
- Pressure Welding/Diffusion-Bonding (AREA)
- Coating With Molten Metal (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、鉄または鉄合金を鋳鉄により鋳ぐるむ方法
に関するものである。TECHNICAL FIELD The present invention relates to a method of casting iron or iron alloy with cast iron.
従来、鋼板等の鉄合金を鋳鉄により鋳ぐるむ方法とし
て、鋼板の表面を研いて酸化物および油等の除去をして
から鋳ぐるむ方法、鋼板の表面に銅またはニッケル等の
メッキを施した後鋳ぐるむ方法、さらに鋼板の表面にニ
ッケル・ボロン合金の皮膜を形成した後鋳ぐるむ方法等
があった。Conventionally, as a method of casting an iron alloy such as a steel sheet with cast iron, the surface of the steel sheet is polished to remove oxides and oils and then cast, and the surface of the steel sheet is plated with copper or nickel. After that, there was a method of casting and then a method of forming a film of nickel-boron alloy on the surface of the steel sheet and then casting.
しかし、鋼板の表面を研く方法や銅またはニッケル等の
メッキを施す方法では、鋼板と鋳鉄との充分な接合が得
られないものであり、ニッケル・ボロン合金の皮膜を形
成する方法では、成分の管理が難しいばかりか、融点が
高い合金であることから溶解炉を昇温するのにエネルギ
と時間を多く必要とするものであった。この発明は、以
上のよう欠点を解決するためにされたものである。However, the method of sharpening the surface of the steel sheet or the method of plating copper or nickel cannot provide sufficient joining between the steel sheet and cast iron, and the method of forming the nickel-boron alloy film is In addition to being difficult to control, since it is an alloy with a high melting point, much energy and time are required to raise the temperature of the melting furnace. The present invention has been made to solve the above drawbacks.
〔問題点を解決するための手段〕 この発明の構成は、鉄または鉄合金を鋳ぐるむ方法にお
いて、 前記鉄または鉄合金をアルミニウム浴中へ浸漬すること
によって前記鉄または鉄合金の表面に鉄−アルムニウム
合金層−アルミニウム層を形成し、その後、この合金層
の表面に存在するアルミニウム層を除去することによっ
て前記合金層を露出させ、この合金層に鋳鉄溶湯を接触
させ、鋼などの鉄または鉄合金と鋳鉄との充分な接合を
得ることを特徴とする鉄または鉄合金を鋳ぐるむ方法で
ある。[Means for Solving the Problems] The structure of the present invention is a method of casting iron or an iron alloy, in which the iron or iron alloy is immersed in an aluminum bath to form iron on the surface of the iron or iron alloy. -Aluminium alloy layer-Aluminum layer is formed, and then the aluminum layer existing on the surface of the alloy layer is removed to expose the alloy layer, and the cast iron molten metal is brought into contact with the alloy layer to form iron or steel. It is a method of surrounding iron or iron alloy, which is characterized by obtaining sufficient joining between the iron alloy and cast iron.
この発明の実施例を図面に基づいて説明する。 An embodiment of the present invention will be described with reference to the drawings.
○鉄およびアルミニウムの合金層の形成 第１図に示すように、一般構造用圧延鋼材（JIS;SS41）
によりその厚みが5mmおよび9mmの鋼板１を、脱脂、水
洗、酸洗い（2.7％塩酸）、水洗、乾燥（450℃）させた
後、アルミニウム浴へ浸漬し、第２図に示すような、鋼
板１の母材の表面に約60μの厚さの鉄およびアルミニウ
ムの合金層２と共にその合金層２の表面にアルミニウム
層３が形成される。その後表面のアルミニウム層３のみ
を除去して鉄およびアルミニウムの合金層を形成させ
る。○ Formation of alloy layer of iron and aluminum As shown in Fig. 1, rolled steel for general structure (JIS; SS41)
After degreasing, washing with water, pickling (2.7% hydrochloric acid), washing with water, and drying (450 ° C), the steel sheet 1 with a thickness of 5 mm and 9 mm is immersed in an aluminum bath and the steel sheet as shown in Fig. 2 An alloy layer 2 of iron and aluminum having a thickness of about 60 μ is formed on the surface of the base material 1 and an aluminum layer 3 is formed on the surface of the alloy layer 2. After that, only the aluminum layer 3 on the surface is removed to form an alloy layer of iron and aluminum.
○鋳鉄による鋳ぐるみ その後第３図の（ａ），（ｂ）に示すように、その鋼板
１を、Ｙブロック用CO2鋳型４にセットし、その鋳型４
に球状黒鉛鋳鉄（JIS;FCD40）５の溶湯を1,400℃で注入
し、その厚みが5mmおよび9mmの鋼板１を各５枠づつ鋳鉄
５に鋳ぐるんだ。O Casting with cast iron After that, as shown in FIGS. 3 (a) and 3 (b), the steel plate 1 is set in the CO 2 mold 4 for the Y block, and the mold 4 is set.
A molten metal of spheroidal graphite cast iron (JIS; FCD40) 5 was poured at 1,400 ° C., and steel plates 1 having thicknesses of 5 mm and 9 mm were cast around the cast iron 5 in five frames.
○引張試験 その鋳鉄５が凝固した後、第３図（ｂ）に点線によって
示すような位置で10φJIS4号引張試験片６を採取し、引
張試験を行い、その試験結果を第１表に示す。その結
果、厚さ5mm鋼板の試験片56において、引張強さ43.6kg/
mm2、伸び19.7％、耐力28.8kg/mm2が確認され、厚さ9mm
鋼板の試験片96においても、引張強さ43.1kg/mm2、伸び
10.7％、耐力29.9kg/mm2の試験結果が得られた。また、
両試験片56,96共に破断個所はすべて鋼板１であり、鋼
板１と鋳鉄５との鋳ぐるみ接合が十分に行われていたこ
とを示している。○ Tensile test After the cast iron 5 was solidified, a 10φ JIS No. 4 tensile test piece 6 was sampled at a position shown by a dotted line in Fig. 3 (b) and a tensile test was conducted. The test results are shown in Table 1. As a result, in the test piece 56 of 5 mm thick steel plate, the tensile strength was 43.6 kg /
mm 2 , elongation 19.7%, proof stress 28.8 kg / mm 2 , thickness 9 mm
The tensile strength of 43.1 kg / mm 2
Test results of 10.7% and yield strength of 29.9 kg / mm 2 were obtained. Also,
All of the test pieces 56 and 96 were fractured at the steel sheet 1, indicating that the steel sheet 1 and the cast iron 5 were sufficiently joined to each other by casting.
○金属組織 また、第4,5図に示すように接合部７近傍の金属組織の
確認を行った結果、鋼板１および鋳鉄５の接合部７は、
その接合部７から鋼板１の内部へかけて浸炭層８が形成
され、厚み5mmの試験片56では、略全面にわたって浸炭
層８が形成され、その鋼板１は全面がパーライト地９と
なっていた。また、厚み9mmの試験片96では、その接合
部７から鋼板１の内部へかけて約1mmの深さまで浸炭層
８が形成されているのみで、その内部はフェライト地10
そのままであった。 ○ Metal structure As a result of confirming the metal structure in the vicinity of the joint 7 as shown in Figs. 4 and 5, the joint 7 of the steel plate 1 and the cast iron 5 was
A carburized layer 8 was formed from the joint 7 to the inside of the steel plate 1, and the carburized layer 8 was formed on almost the entire surface of the test piece 56 having a thickness of 5 mm, and the steel plate 1 had a pearlite ground 9 on the entire surface. . Further, in the test piece 96 having a thickness of 9 mm, only the carburized layer 8 is formed from the joint 7 to the inside of the steel sheet 1 to a depth of about 1 mm, and the inside thereof is made of the ferrite material 10.
It was as it was.
この発明に係る鉄または鉄合金を鋳ぐるむ方法は、上記
のように構成されているため、鉄または鉄合金の表面に
アルミニウムとの合金層が略均一に形成される。さら
に、合金層の表面に露出しているアルミニウム層を取り
除くことにより合金層を表面に露出させ、この結果、こ
の合金層と鋳鉄溶湯とが直接接触して融合しやすくなり
堅固に接合させるものである。よって、この発明の方法
を使用すれば、ニッケル・ボロン合金の皮膜を形成する
方法等と比べて、前記合金層を得るのに、成分の管理が
容易なばかりか、融点が低い合金であるため溶解炉を昇
温するのに多くのエネルギーと時間を必要としないもの
である。Since the method of casting iron or iron alloy according to the present invention is configured as described above, an alloy layer with aluminum is formed substantially uniformly on the surface of iron or iron alloy. Further, by removing the aluminum layer exposed on the surface of the alloy layer, the alloy layer is exposed on the surface, and as a result, the alloy layer and the cast iron molten metal are in direct contact with each other to facilitate fusion and to firmly bond them. is there. Therefore, when the method of the present invention is used, compared with the method of forming a coating film of nickel-boron alloy, etc., not only the control of the components is easy in obtaining the alloy layer, but also the alloy has a low melting point. It does not require much energy and time to heat up the melting furnace.
図面はこの発明の実施例を示すもので、第１図は鋳鉄に
よって鋳ぐるむ鋼板の形状を示し、（ａ）は平面図、
（ｂ）は側面図、第２図は鋼板表面を示す拡大断面図、
第３図（ａ）は鋳型の断面図、同（ｂ）は注湯後の鋳型
断面図、第４図は厚み5mm鋼板の試験片の図とその金属
組織の顕微鏡写真（×100）、第５図は厚み9mm鋼板の試
験片の図とその金属組織の顕微鏡写真（×100）であ
る。 １……鋼板 ２……鉄およびアルミニウムの合金層 ４……鋳型 ５……鋳鉄The drawings show an embodiment of the present invention, in which FIG. 1 shows the shape of a steel plate that is cast by cast iron, (a) is a plan view,
(B) is a side view, FIG. 2 is an enlarged sectional view showing the steel plate surface,
FIG. 3 (a) is a cross-sectional view of the mold, FIG. 3 (b) is a cross-sectional view of the mold after pouring, FIG. 4 is a view of a test piece of a steel plate having a thickness of 5 mm and a micrograph (× 100) of its metal structure, Fig. 5 is a diagram of a test piece of a 9 mm thick steel plate and a micrograph (× 100) of its metal structure. 1 ... Steel plate 2 ... Iron and aluminum alloy layer 4 ... Mold 5 ... Cast iron
Claims (1)
によって前記鉄または鉄合金の表面に鉄−アルミニウム
合金層−アルミニウム層を形成し、その後、この合金層
の表面に存在するアルミニウム層を除去することによっ
て前記合金層を露出させ、この合金層に鋳鉄溶湯を接触
させることを特徴とする鉄または鉄合金を鋳ぐるむ方
法。1. A method for casting iron or an iron alloy, comprising forming an iron-aluminum alloy layer-aluminum layer on the surface of the iron or iron alloy by immersing the iron or iron alloy in an aluminum bath. After that, the alloy layer is exposed by removing the aluminum layer existing on the surface of the alloy layer, and the cast iron molten metal is brought into contact with the alloy layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59176978A JPH0683891B2 (en) | 1984-08-25 | 1984-08-25 | How to cast iron or iron alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59176978A JPH0683891B2 (en) | 1984-08-25 | 1984-08-25 | How to cast iron or iron alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6156764A JPS6156764A (en) | 1986-03-22 |
| JPH0683891B2 true JPH0683891B2 (en) | 1994-10-26 |
Family
ID=16023032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59176978A Expired - Lifetime JPH0683891B2 (en) | 1984-08-25 | 1984-08-25 | How to cast iron or iron alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0683891B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62232529A (en) * | 1986-04-01 | 1987-10-13 | Kansai Electric Power Co Inc:The | Detector for detecting leakage of small quantity of steam |
| JP3283442B2 (en) * | 1997-07-14 | 2002-05-20 | 日野自動車株式会社 | Cast-in structure of dissimilar metal |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5934473B2 (en) * | 1976-11-11 | 1984-08-22 | 株式会社クボタ | Casting method for steel materials |
| JPS5510372A (en) * | 1978-07-10 | 1980-01-24 | Chobe Taguchi | Manufacture of cast metal with cast surface of aluminum alloy layer |
-
1984
- 1984-08-25 JP JP59176978A patent/JPH0683891B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6156764A (en) | 1986-03-22 |
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