JPS6242167Y2 - - Google Patents
Info
- Publication number
- JPS6242167Y2 JPS6242167Y2 JP1982006529U JP652982U JPS6242167Y2 JP S6242167 Y2 JPS6242167 Y2 JP S6242167Y2 JP 1982006529 U JP1982006529 U JP 1982006529U JP 652982 U JP652982 U JP 652982U JP S6242167 Y2 JPS6242167 Y2 JP S6242167Y2
- Authority
- JP
- Japan
- Prior art keywords
- nut
- alloy
- present
- magnesium
- zinc alloy
- 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
- 229910001297 Zn alloy Inorganic materials 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 229910000861 Mg alloy Inorganic materials 0.000 claims description 7
- 229910000640 Fe alloy Inorganic materials 0.000 claims description 4
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 3
- 239000007788 liquid Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 4
- 229910052749 magnesium Inorganic materials 0.000 description 4
- 239000011777 magnesium Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Landscapes
- Prevention Of Electric Corrosion (AREA)
Description
【考案の詳細な説明】
本考案はナツトの構造に係り、特にマグネシウ
ム合金製部材の締結に好適なナツトの構造に関す
るものである。[Detailed Description of the Invention] The present invention relates to the structure of a nut, and particularly to the structure of a nut suitable for fastening members made of magnesium alloy.
近年、軽量化及び装飾的効果を目的としてヘツ
ドカバー、タイミングチエーンカバー等の自動車
部品その他がマグネシウム合金で造られるように
なつた。これらのマグネシウム合金製部品（以
下、マグネ部品という）の取り付けには、通常ボ
ルトとナツトの如き締結部材が用いられている。 In recent years, automobile parts such as head covers, timing chain covers, etc. have been made of magnesium alloys for the purpose of weight reduction and decorative effects. Fastening members such as bolts and nuts are usually used to attach these magnesium alloy parts (hereinafter referred to as magnet parts).
この締結部材は通常鋼等の鉄系金属、黄銅等で
造られており、マグネ部品の締結に用いられる場
合には電食が問題となる。即ち、マグネシウムは
電気化学的に卑な金属であるため、鉄等のマグネ
シウムよりイオン化傾向の小さい異種金属と接触
し、かつ両者の間に水、塩水等の導電性液体が存
在すると局部電池が形成され、イオン化傾向の大
きいマグネシウムが優先的にかつ短時間で腐食さ
れる。このため、締結部材とマグネ部品の接触部
に導電性液体が付着した場合には、電食が起こ
り、締結部材の締結力不足から油のにじみなどが
生じて美観が損なわれるという問題が発生する。 This fastening member is usually made of ferrous metal such as steel, brass, etc., and when used to fasten magnetic components, electrolytic corrosion becomes a problem. In other words, since magnesium is an electrochemically base metal, if it comes into contact with a different metal, such as iron, which has a lower ionization tendency than magnesium, and a conductive liquid such as water or salt water is present between the two, a local battery will be formed. Magnesium, which has a strong tendency to ionize, is corroded preferentially and in a short time. For this reason, if conductive liquid adheres to the contact area between the fastening member and the magnetic component, electrolytic corrosion will occur, and the lack of fastening force in the fastening member will cause oil smearing, which will impair the aesthetic appearance. .
本考案は上記従来技術の問題点を解決するため
になされたもので、マグネ部品とナツトとの接触
部に導電性液体が付着してもマグネ部品の電食を
抑えることができる鉄合金又は銅合金製のナツト
を提供することを目的とする。 The present invention was made in order to solve the above-mentioned problems of the conventional technology.It is made of iron alloy or copper that can suppress the electrolytic corrosion of the magnetic parts even if a conductive liquid adheres to the contact area between the magnetic parts and the nut. The purpose is to provide nuts made of alloy.
係る目的は、本考案によれば鉄合金又は銅合金
製のナツトの座面の外周部に亜鉛合金製リングを
装着することにより達成される。 According to the present invention, this object is achieved by attaching a zinc alloy ring to the outer periphery of the bearing surface of a nut made of iron or copper alloy.
以下、本考案を図に基づいて説明する。 Hereinafter, the present invention will be explained based on the drawings.
第１図は本考案に係るナツトを示す縦断面図で
ある。第１図において、１はナツトであり、２は
ナツト１の座面の外周部に装着された亜鉛合金製
リングである。 FIG. 1 is a longitudinal sectional view showing a nut according to the present invention. In FIG. 1, 1 is a nut, and 2 is a zinc alloy ring attached to the outer periphery of the seat surface of the nut 1.
本考案に係るナツトは、例えば塑性加工と機械
加工により鋼で第１図にその断面形状を示す如き
座面の外周部を切り欠いた形状のナツト１を造
り、これにJIS ZDC2のような亜鉛合金を用いて
ダイカスト等の鋳造により又は切削でつくつた亜
鉛合金製リング２を圧入することにより製造する
ことができる。 In the nut according to the present invention, a nut 1 having a shape in which the outer periphery of the seat surface is cut out, as shown in the cross-sectional shape in FIG. It can be manufactured by die-casting using an alloy, or by press-fitting a zinc alloy ring 2 made by cutting.
次に、本考案の作用、効果を説明する。 Next, the functions and effects of the present invention will be explained.
本考案に係るナツトを用いマグネ部品を他部品
と締結すると、ナツトの外周部は亜鉛合金リング
を介してマグネ部品と接触することになる。この
ナツトとマグネ部品の接触部及びその近傍に何ら
かの原因で水、塩水等の導電性液体が付着すると
マグネシウム、亜鉛、鉄の各々のイオン化傾向の
違いから局部電池が形成される。しかし、マグネ
シウム合金と鋼が直接接触している場合に比べマ
グネシウム合金と亜鉛合金の間の電位差は小さい
ためマグネ部品はほとんど腐食しない。 When a magnetic component is fastened to another component using the nut according to the present invention, the outer periphery of the nut comes into contact with the magnetic component via the zinc alloy ring. If a conductive liquid such as water or salt water adheres to the contact area between the nut and the magnetic component or its vicinity for some reason, a local battery is formed due to the difference in the ionization tendency of magnesium, zinc, and iron. However, since the potential difference between the magnesium alloy and zinc alloy is smaller than when the magnesium alloy and steel are in direct contact, the magnetic parts hardly corrode.
一方、亜鉛合金と鋼との電位差はマグネシウム
合金と亜鉛合金の間より大きいため、この間に導
電性液体が存在すれば多少亜鉛合金製リングが腐
食するが、その腐食の進行速度は極めて遅く実用
上問題とならない。 On the other hand, the potential difference between zinc alloy and steel is larger than that between magnesium alloy and zinc alloy, so if a conductive liquid exists between them, the zinc alloy ring will corrode to some extent, but the rate of corrosion is extremely slow and is not suitable for practical use. Not a problem.
以上述べた如く、本考案に係る鉄合金又は銅合
金製のナツトは座面の外周部に亜鉛合金製リング
が装着されているため、マグネ部品の締結に用い
た場合に、締結部に水等の導電性液体が付着し局
部電池が構成されても腐食がほとんど進行しない
という効果を奏する。 As mentioned above, the nut made of iron alloy or copper alloy according to the present invention has a zinc alloy ring attached to the outer periphery of the seat surface, so when it is used to fasten magnetic parts, water or other water may leak into the fastening part. Even if a local battery is formed by adhesion of a conductive liquid, corrosion hardly progresses.
また、本考案に係るナツトは構造が簡単でかつ
安価に製造できるため極めて実用性の高いもので
ある。 Furthermore, the nut according to the present invention has a simple structure and can be manufactured at low cost, making it extremely practical.
第１図は本考案に係るナツトを示す縦断面図で
ある。
１……ナツト、２……亜鉛合金製リング。
FIG. 1 is a longitudinal sectional view showing a nut according to the present invention. 1... Nut, 2... Zinc alloy ring.
Claims (1)
とを特徴とする鉄合金又は銅合金製のマグネシウ
ム合金製部材締結用ナツト。 A nut for fastening magnesium alloy members made of iron or copper alloy, characterized in that a zinc alloy ring is attached to the outer periphery of the seat surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP652982U JPS58109618U (en) | 1982-01-21 | 1982-01-21 | Natsuto |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP652982U JPS58109618U (en) | 1982-01-21 | 1982-01-21 | Natsuto |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58109618U JPS58109618U (en) | 1983-07-26 |
| JPS6242167Y2 true JPS6242167Y2 (en) | 1987-10-29 |
Family
ID=30019304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP652982U Granted JPS58109618U (en) | 1982-01-21 | 1982-01-21 | Natsuto |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58109618U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5518366U (en) * | 1978-07-25 | 1980-02-05 | ||
| JPS5638248U (en) * | 1979-08-31 | 1981-04-10 |
-
1982
- 1982-01-21 JP JP652982U patent/JPS58109618U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5518366U (en) * | 1978-07-25 | 1980-02-05 | ||
| JPS5638248U (en) * | 1979-08-31 | 1981-04-10 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58109618U (en) | 1983-07-26 |
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