JPS6389639A - Electrode material for spark plug - Google Patents
Electrode material for spark plugInfo
- Publication number
- JPS6389639A JPS6389639A JP23477186A JP23477186A JPS6389639A JP S6389639 A JPS6389639 A JP S6389639A JP 23477186 A JP23477186 A JP 23477186A JP 23477186 A JP23477186 A JP 23477186A JP S6389639 A JPS6389639 A JP S6389639A
- Authority
- JP
- Japan
- Prior art keywords
- electrode material
- weight
- spark plug
- amount
- attack resistance
- 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
- 239000007772 electrode material Substances 0.000 title abstract description 14
- 239000012535 impurity Substances 0.000 claims description 2
- 239000000956 alloy Substances 0.000 abstract description 5
- 229910045601 alloy Inorganic materials 0.000 abstract description 5
- 238000010348 incorporation Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 12
- 230000003647 oxidation Effects 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
Landscapes
- Spark Plugs (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、点火プラグ用電極材料、特に耐鉛アタック
性に優れる電極材料に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electrode material for a spark plug, and particularly to an electrode material having excellent lead attack resistance.
点火プラグ用電極材料としては、ＮｉにＳｒＳＣｒｓＭ
ｎ等を１種又は２種以上、重量比で１〜１０％程度添加
したＮｉ基合金が専ら使用されている。As the electrode material for spark plugs, Ni and SrSCrsM are used.
Ni-based alloys to which one or more kinds of n, etc. are added in an amount of about 1 to 10% by weight are exclusively used.
この既存のＮｉ基合金は、一般的な使用状況下では充分
な耐久性をもっているが、エンジンの高出力化、高速回
転化が進むにつれて、有鉛ガソリンを使用するエンジン
においては耐鉛アタック性が不足するようになってきて
おり、この面においての耐久性の改善が当分野における
課題の１つとなっている。This existing Ni-based alloy has sufficient durability under general usage conditions, but as engines become more powerful and rotate at higher speeds, the lead attack resistance of engines that use leaded gasoline has deteriorated. There is a growing shortage of these materials, and improving durability in this aspect is one of the challenges in this field.
そこで、この発明は、Ｎｉに添加する５ｉＳＣｒ、 Ｍ
ｎ等の量を調整し、新たにＡＩを加えることにより、従
来材料に比較して耐鉛アタック性に優れる電極材料を提
供することを目的としている。Therefore, the present invention proposes that 5iSCr, M
The purpose of this invention is to provide an electrode material that has superior lead attack resistance compared to conventional materials by adjusting the amount of n, etc., and newly adding AI.
この発明は、耐鉛アタック性の改善のために、電極材料
の組成を、重量比でＳｉが２．０〜２．４％、Ｃ「が０
．９〜１．３％、Ａｎが０．２〜０．６％、Ｍｎが１゜
８〜２．２％、Ｃが０．０５％以下で、残部は不純物を
除いて実質的にＮｉとなしたのである。In order to improve lead attack resistance, this invention changed the composition of the electrode material to include 2.0 to 2.4% Si and 0% C by weight.
．． 9 to 1.3%, An 0.2 to 0.6%, Mn 1.8 to 2.2%, C 0.05% or less, and the remainder is substantially Ni excluding impurities. That's what I did.
Ｓｉは、耐高温酸化性と耐鉛アタック性を向上させる目
的で添加した元素であり、他の金属元素の添加量との関
係で、その含有量が２．０重世％を下回ると効果が少な
く、一方、２．４重量％を越えると特に冷間加工性が悪
化する。従って、このＳｉの添加量は２．０〜２．４重
量％に限定する。Si is an element added for the purpose of improving high-temperature oxidation resistance and lead attack resistance, and in relation to the amount of other metal elements added, it becomes less effective when its content is less than 2.0%. On the other hand, if it exceeds 2.4% by weight, cold workability will particularly deteriorate. Therefore, the amount of Si added is limited to 2.0 to 2.4% by weight.
Ｃｒも、この発明の材料においては、耐高温酸化性と耐
鉛アタック性を向上させる元素であるが、これも、他の
添加物との関係で０．９重量％を下回ると効果が少なく
、逆に１．３重量％を越えると特に冷間加工性を悪化さ
せる。従って、その添加量は０．９〜１．３重量％に限
定する。Cr is also an element that improves high-temperature oxidation resistance and lead attack resistance in the material of the present invention, but due to its relationship with other additives, if it is less than 0.9% by weight, it has little effect. On the other hand, if it exceeds 1.3% by weight, cold workability will particularly deteriorate. Therefore, the amount added is limited to 0.9 to 1.3% by weight.
ＡｊｌもＳＬｓ Ｃｒと同様、この発明の材料では耐高
温酸化性と耐鉛アタック性を向上させる元素である。こ
のＡｌは、耐鉛アタック性の改善には本来、１．２〜１
．６重量％を必要とするが、この発明では、Ｓｒｓ Ｍ
ｎ、 Ｃｒの添加量との関係で０．２〜０．６重量％に
限定する。その添加量が０．２重量％以下では全く効果
がなく、０．６重量％を越えると主に冷間加工性が低下
する。特に、Ａｌの添加量が５重量％にも達すると冷間
加工性の低下がはなはだしい。Like SLs Cr, Ajl is also an element that improves high temperature oxidation resistance and lead attack resistance in the material of the present invention. This Al is originally 1.2 to 1 to improve lead attack resistance.
．． 6% by weight, but in this invention, Srs M
The amount is limited to 0.2 to 0.6% by weight in relation to the amount of n and Cr added. If the amount added is less than 0.2% by weight, there will be no effect at all, and if it exceeds 0.6% by weight, the cold workability will mainly decrease. In particular, when the amount of Al added reaches 5% by weight, the cold workability deteriorates markedly.
Ｍｎも、この発明においては耐高温酸化性と耐鉛アタッ
ク性を向上させる元素である。その量は１゜８重量％以
下では効果が少なく、また、２．２重量％を越えると特
に冷間加工性が悪化する。よって、Ｍｎ添加量は１．８
〜２．２重量％とする。In this invention, Mn is also an element that improves high temperature oxidation resistance and lead attack resistance. If the amount is less than 1.8% by weight, the effect will be small, and if it exceeds 2.2% by weight, the cold workability will particularly deteriorate. Therefore, the amount of Mn added is 1.8
~2.2% by weight.
Ｃは、０．０５重量％を越えると特に冷間加工性が悪化
するため、その添加量は０．０５重撥％以下とする。When C exceeds 0.05% by weight, the cold workability is particularly deteriorated, so the amount added is limited to 0.05% by weight or less.
以下に、実施例について述べる０表１にこの発明の電極
材料と、各元素の添加量がこの発明の範囲から外れる比
較材料及び従来の電極材料の各々に関してのＮｉに対す
る添加成分と量を示す、ｌ’ｈｌ、患２がこの発明の電
極材料であり、階３〜磁１３は比較材料、１ｌｈ１４は
従来材料を示している。Examples will be described below. Table 1 shows the ingredients and amounts added to Ni for the electrode material of the present invention, comparative materials in which the amount of each element added is outside the scope of the present invention, and conventional electrode materials. 1'hl and 2 are electrode materials of the present invention, 3 to 13 are comparative materials, and 11h14 is a conventional material.
表２は、表１の各材料についての耐鉛アタック性、耐高
温酸化性、加工荷重の評価結果を表している。Table 2 shows the evaluation results of lead attack resistance, high temperature oxidation resistance, and processing load for each material in Table 1.
表 １
表 ２
炙 耐鉛アタック性ｉ ＰｂＯ：ＰｂＳ ＝１ ： １
の混合浴中に魚’ｃｘ２時間保持後の母材残存率
玉 耐高温酸化性：１（２）ｔｘ４分＋３００’ｃｘ２
分の熱サイクルをり刀回上の表２から、この発明の電極
材料（１！ｌｌ、磁２）は従来材料（Ｎ１１４ ）より
も加工荷重で劣るものの、耐高温酸化性に関してはやや
上回り、また−耐鉛アタック性では３０％近く向上した
ことが判る。Table 1 Table 2 Roasted Lead attack resistance i PbO:PbS = 1: 1
Base material survival rate after holding fish in a mixed bath for 2 hours High temperature oxidation resistance: 1 (2) tx 4 minutes + 300'cx2
From Table 2 above, the electrode material of the present invention (1!ll, Magnetic 2) is inferior to the conventional material (N114) in terms of processing load, but it is slightly superior in terms of high temperature oxidation resistance. Furthermore, it can be seen that the lead attack resistance was improved by nearly 30%.
また、患３〜１ｂｉｏの比較材の評価結果から、Ｓｔ、
Ｃｒ、 ＡＮ、Ｍｎのいずれかの含有量が少ないと耐
鉛アタック性が低下して充分な耐久性が得られないこと
が判る。さらに、迎１１〜Ｎａ１３の比較材の評価結果
から、各添加元素の含有量が規定値よりも多くなると加
工性が著しく悪化することも判る。In addition, from the evaluation results of comparative materials of patients 3 to 1 bio, St.
It can be seen that if the content of any one of Cr, AN, and Mn is low, lead attack resistance decreases and sufficient durability cannot be obtained. Furthermore, from the evaluation results of comparative materials No.11 to Na13, it can be seen that when the content of each additive element exceeds the specified value, the workability deteriorates significantly.
上の実施例から明らかな通り、Ｎｉに対するＳｉ、Ｃｒ
ｓ ＾１１Ｍｎ５Ｃの添加量を特定したこの発明によ
れば、顕著な耐鉛アタック性の改善効果が得られ、有鉛
燃料を使用するエンジンの点火プラグ用電極に採用して
も不足のない耐久性を発揮し得る。As is clear from the above examples, Si, Cr and Ni
According to this invention, which specifies the amount of s^11Mn5C added, a remarkable improvement in lead attack resistance can be obtained, and it has sufficient durability even when used in spark plug electrodes for engines using leaded fuel. can be demonstrated.
Claims (1)
３％、Ａｌ０．２〜０．６％、Ｍｎを１．８〜２．２％
、Ｃを０．０５％以下含有し、残部が不純物を除いて実
質的にＮｉから成ることを特徴とする点火プラグ用電極
材料。In terms of weight ratio, Si is 2.0 to 2.4% and Cr is 0.9 to 1.
3%, Al0.2-0.6%, Mn 1.8-2.2%
, C in an amount of 0.05% or less, and the remainder consisting essentially of Ni excluding impurities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61234771A JP2514937B2 (en) | 1986-10-01 | 1986-10-01 | Electrode material for spark plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61234771A JP2514937B2 (en) | 1986-10-01 | 1986-10-01 | Electrode material for spark plug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6389639A true JPS6389639A (en) | 1988-04-20 |
| JP2514937B2 JP2514937B2 (en) | 1996-07-10 |
Family
ID=16976106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61234771A Expired - Lifetime JP2514937B2 (en) | 1986-10-01 | 1986-10-01 | Electrode material for spark plug |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2514937B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5239141A (en) * | 1975-09-22 | 1977-03-26 | Mitsubishi Electric Corp | Non-interrupted powe source |
-
1986
- 1986-10-01 JP JP61234771A patent/JP2514937B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5239141A (en) * | 1975-09-22 | 1977-03-26 | Mitsubishi Electric Corp | Non-interrupted powe source |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2514937B2 (en) | 1996-07-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |