US3653881A - Alloy for use in spark plug electrodes - Google Patents
Alloy for use in spark plug electrodes Download PDFInfo
- Publication number
- US3653881A US3653881A US60758A US3653881DA US3653881A US 3653881 A US3653881 A US 3653881A US 60758 A US60758 A US 60758A US 3653881D A US3653881D A US 3653881DA US 3653881 A US3653881 A US 3653881A
- Authority
- US
- United States
- Prior art keywords
- alloy
- spark plug
- percent
- corrosion
- plug electrodes
- 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
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 31
- 239000000956 alloy Substances 0.000 title claims abstract description 31
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000011651 chromium Substances 0.000 claims abstract description 8
- 239000010936 titanium Substances 0.000 claims abstract description 8
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 7
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 7
- 239000010703 silicon Substances 0.000 claims abstract description 7
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 7
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 7
- 239000000470 constituent Substances 0.000 claims abstract description 6
- 229910052742 iron Inorganic materials 0.000 claims abstract description 6
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 abstract description 15
- 238000005260 corrosion Methods 0.000 abstract description 15
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 6
- 230000003647 oxidation Effects 0.000 abstract description 6
- 238000007254 oxidation reaction Methods 0.000 abstract description 6
- 239000011572 manganese Substances 0.000 abstract description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052748 manganese Inorganic materials 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 description 5
- 239000010955 niobium Substances 0.000 description 4
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 3
- KEQXNNJHMWSZHK-UHFFFAOYSA-L 1,3,2,4$l^{2}-dioxathiaplumbetane 2,2-dioxide Chemical compound [Pb+2].[O-]S([O-])(=O)=O KEQXNNJHMWSZHK-UHFFFAOYSA-L 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 229910001055 inconels 600 Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 229910052924 anglesite Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- UPHIPHFJVNKLMR-UHFFFAOYSA-N chromium iron Chemical compound [Cr].[Fe] UPHIPHFJVNKLMR-UHFFFAOYSA-N 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910001026 inconel Inorganic materials 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T13/00—Sparking plugs
- H01T13/20—Sparking plugs characterised by features of the electrodes or insulation
- H01T13/39—Selection of materials for electrodes
Definitions
- alloys adapted for use 1n spark plug electrodes the alloy bemg so constituted as to retain a low electrical resistivity while pos- [52] U.S. Cl ..75/ 171 sessing a high degree of resistance to oxidation and corrosion. [51 Int. Cl ..C22c 19/00
- the alloy consists essentially of the following constituents on a 58 Field ofSearch ..75/171, 170; 14s 32,32.5 weight percent basis, chromium iron 3- nganese 1.75-2.25, silicon 1.75-2.25, titanium 0.2-0.4, the balance being nickel.
- This invention relates to an improved oxidation and corrosion resistant alloy especially adapted for use in spark plugs as the center electrode material.
- the high temperatures existing in the combustion chamber together with the sulfur, lead, halogens and water vapor contained in the combustion gases set up conditions which cause rapid deterioration of the spark plug electrodes. This problem has been getting worse with time in that engine operating temperatures and pressures are increasing as greater demands for efficiency, power output and emissions control are made.
- the prior art includes numerous alloys, one of which is disclosed in U.S. Pat. No. 2,266,318 granted Dec. 16, 1941.
- This alloy consists primarily of nickel with additions of chromium and columbium (niobium).
- columbium is a very high cost material and increased amounts are required for greater corrosion resistance.
- the processing of alloys with columbium is very difficult in that it tends to readily oxidize and form an oxide contaminant in the alloy.
- the alloys of our invention are primarily nickel with small but significant amounts of each of chromium, iron, manganese, silicon and titanium. A small amount of carbon as impurity not in excess of 0.05 percent by weight may also be present.
- the following table shows the composition of our invention as compared with the compositions of two alloys in current use.
- Our composition made by melting the constituents together in a furnace and controlled to minimize oxidation, is identified as No. 296, the currently used alloys being identified as No. 23 and Inconel 600.
- a preferred composition consists essentially of the following constituents in the indicated amounts on a percent by weight basis:
- Nickel Balance In evaluating the properties of our alloy as compared with those of existent alloys now in use, we have found that the alloys of our invention exhibit superior corrosion resistant properties. We also have found that the electrical resistivity when measured in microohm centimeters is relatively low as is required for its intended use in the ignition system.
- An oxidation and corrosion resistant alloy for use in spark plug electrodes consisting essentially of, on a weight percent basis, about 2.0 2.5 chromium, about 3.0 3.5 iron, about 1.75 2.25 manganese, about 1.75 2.25 silicon, about 0.2 0.4 titanium, the balance being nickel.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Spark Plugs (AREA)
- Conductive Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US6075870A | 1970-08-03 | 1970-08-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3653881A true US3653881A (en) | 1972-04-04 |
Family
ID=22031562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US60758A Expired - Lifetime US3653881A (en) | 1970-08-03 | 1970-08-03 | Alloy for use in spark plug electrodes |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3653881A (2) |
| BE (1) | BE770845A (2) |
| CA (1) | CA935675A (2) |
| DE (1) | DE2138809C3 (2) |
| FR (1) | FR2103862A5 (2) |
| GB (1) | GB1310208A (2) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5578895A (en) * | 1993-07-26 | 1996-11-26 | Ngk Spark Plug Co., Ltd. | Spark plug having a noble metal electrode tip |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2266318A (en) * | 1940-08-23 | 1941-12-16 | Gen Motors Corp | Alloy for use in spark plug electrodes and the like |
| US2958598A (en) * | 1957-01-18 | 1960-11-01 | Int Nickel Co | Sparking plug electrodes |
-
1970
- 1970-08-03 US US60758A patent/US3653881A/en not_active Expired - Lifetime
-
1971
- 1971-02-17 CA CA105603A patent/CA935675A/en not_active Expired
- 1971-07-08 GB GB3211771A patent/GB1310208A/en not_active Expired
- 1971-08-02 FR FR7128267A patent/FR2103862A5/fr not_active Expired
- 1971-08-02 BE BE770845A patent/BE770845A/xx unknown
- 1971-08-03 DE DE2138809A patent/DE2138809C3/de not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2266318A (en) * | 1940-08-23 | 1941-12-16 | Gen Motors Corp | Alloy for use in spark plug electrodes and the like |
| US2958598A (en) * | 1957-01-18 | 1960-11-01 | Int Nickel Co | Sparking plug electrodes |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5578895A (en) * | 1993-07-26 | 1996-11-26 | Ngk Spark Plug Co., Ltd. | Spark plug having a noble metal electrode tip |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2103862A5 (2) | 1972-04-14 |
| DE2138809B2 (de) | 1979-10-18 |
| GB1310208A (en) | 1973-03-14 |
| CA935675A (en) | 1973-10-23 |
| DE2138809C3 (de) | 1980-07-03 |
| BE770845A (fr) | 1971-12-15 |
| DE2138809A1 (de) | 1973-03-22 |
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