CN108018455A - A kind of iridium nickel alloy, preparation method and applications - Google Patents

A kind of iridium nickel alloy, preparation method and applications Download PDF

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Publication number
CN108018455A
CN108018455A CN201711344210.2A CN201711344210A CN108018455A CN 108018455 A CN108018455 A CN 108018455A CN 201711344210 A CN201711344210 A CN 201711344210A CN 108018455 A CN108018455 A CN 108018455A
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iridium
vacuum
alloy
nickel alloy
nickel
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王振生
陈光云
吴克军
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Hunan University of Science and Technology
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Hunan University of Science and Technology
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Priority to CN201711344210.2A priority Critical patent/CN108018455A/en
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C5/00—Alloys based on noble metals
    • C22C5/04—Alloys based on a platinum group metal
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • 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
    • C22C19/03—Alloys based on nickel or cobalt based on nickel
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Spark Plugs (AREA)

Abstract

The present invention provides a kind of iridium nickel alloy, preparation method and applications, iridium nickel alloy, is made of the component of following mass percent：Iridium 40 ~ 70%, nickel 30 ~ 60%.Its preparation method, includes the following steps：1）Nickel and iridium are weighed by mass percentage, are placed under vacuum environment；2）Nickel and iridium mixture are heated, obtain aluminium alloy；3）By step 2）Gained aluminium alloy is poured into smelt and cast in mould；4）To step 3）Gained iridium Ni alloy ingot Homogenization Treatments.The present invention is intermediate layer welding material, both the good welds of the metals such as iridium, iridium rhodium 10, iridium rhodium 25, iridium rhodium 40, Inconel 600 and iridium nickel alloy can have been realized, finally solved and iridium, iridium rhodium 10, the welding problem of 600 alloy of iridium rhodium 25, iridium rhodium 40 and Inconel；The present invention is used for sparking-plug electrode and prepares, and can save noble metal 30 ~ 60%.

Description

A kind of iridium nickel alloy, preparation method and applications
Technical field
The invention belongs to spark plug iraurite electrode fabrication field, particularly relates to a kind of iridium nickel alloy, prepares Method and its application.
Background technology
There are spark plug, one, a cylinder on every petrol engine, a other high speed gasoline engines are also equipped with 2 per cylinder Spark plug.Though spark plug is small, it affects the starting capability, oil consumption and exhaust emission levels of engine.If hair Motivation is the heart of automobile, then spark plug is " heart " " pacemaker ".
The effect of spark plug is the high-voltage electricity that ignition coil is produced（10000 more than V）Cylinder is introduced, in spark plug Spark is produced between the gap of electrode and lights air-fuel mixture.Wherein, the sparking-plug electrode building ring as discharge component Border is extremely severe.By taking the spark plug of a common four-stroke gasoline engine as an example, in induction stroke, temperature is 60 ~ 90 DEG C, pressure About 98 Kpa；And in ignition, temperature can rise to 2000 ~ 3000 DEG C moment, and pressure reaches 3920 ~ 6860 Kpa.This Kind temperature rapid heat cycle, the anxious high anxious low alternating of pressure are per minute up to hundreds of secondary to thousands of times.In addition, gasoline vapor and burning The corrosivity residue of gas and gasoline and lubricating oil all has chemical corrosivity to the surface of sparking-plug electrode.Therefore, in order to Ensure the normal work of engine, spark plug electrode materials must have preferable mechanical performance, hot property, electrical property and corrosion resistant Corrosion energy.At present, domestic and international sparking-plug electrode material has nickel base superalloy, and also useful noble metal makes spark plug, than Such as with silver, platinum, iraurite.Wherein, platinum, iridium spark plug have the advantages that two materials that are big and becoming high-quality sparking-plug electrode Material.
1st, reliability of lighting a fire is high
A diameter of 2.5 mm of central electrode of general spark plug, and the central electrode ignition end diameter of noble metal platinum, iridium spark plug Most I is 0.60mm.So heated center electrode institute heat consumption is few, flame arrest effect（The heat of the flame core of spark generation is by temperature Relatively low electrode is absorbed, the effect that flame core is spread to surrounding）Diminish, flame core is easy to spread.Therefore, in same low ignition Under conditions of current strength, the combustion mixture in cylinder can obtain some more ignition energies, and mixture combustion obtains more Add fully, drop low exhaust gas emission.In addition, according to the principle of point discharge, electrode tip is easier to gather more electric energy, electric spark It is easier to skip the gap between the two poles of the earth.This causes there is good ignition performance to when working normally rotation speed operation in cold.
2nd, excellent durability
Spark plug life is often weighed with the consumption of electrode.The service life of spark plug is defined as " until electrode cannot jump normally Untill spark ", it is seen that influence of the consumption of electrode to spark plug life is big.The consumption of electrode is by ablation（Drawn by electric ignition The scaling loss risen）And corrosion（Chemistry, calorifics effect）Caused by.Actual test shows that temperature is begun to 580 DEG C with top electrode Corrosion.And correspondingly increase with temperature rising corrosion.Nearby begin to aoxidize to 890 ~ 1000 DEG C.If generation is invaded（Burn） Erosion, the corner angle of electrode reform into arcuation, and electrode gap becomes larger, and can thus improve discharge voltage necessary to arcing between electrode. Generally with the operation of engine or the increase of running car distance, discharge voltage necessary to electrode gap is also on constantly Rise, the voltage limit that ignition coil is provided can be become closer to, then light a fire more and more difficult, cutoff finally occurs.Spark The service life of plug also just ends in this.Platinum, the fusing point of iraurite are high（Platinum fusion temperature is 1769 DEG C, platinum fusion temperature It can reach 2447 DEG C）, platinum, iraurite electrode oxidative resistance and ablation resistance are good, can preferably bear combustion gas and the change of residue Corrosion is learned, and original spark gap can be kept for a long time, so as to extend the service life of spark plug.
Compared to platinum, the features such as iraurite has the hardness and fusing point of higher, and resistance is lower, by adding rhodium element alloy Change can be with the inoxidizability of higher.High rigidity and fusing point mean that electrode can be done very thin, and generation is more concentrated, and energy is more By force, the more stable spark of route, improves mixture combustion efficiency and burning velocity.In addition, the price of iraurite is less than platinum price, The price of spark plug is advantageously reduced, improves the competitiveness of product.
In conclusion iridium and iridium-rhodium alloy have good mechanical performance, hot property, electrical property and corrosion resistance, It is the preferred material for preparing sparking-plug electrode.
However, iridium and the thermal coefficient of expansion of iridium-rhodium alloy are small, the thermal coefficient of expansion of nickel-base alloy is big, after welding, makes Failure that hot and cold alternation effect during easily leads to iridium and iridium-rhodium alloy comes off, is particularly the iridium and iridium rhodium of large-size Alloy is more easy to fall off.In addition, the price of iridium and iridium-rhodium alloy is very high, iridium and iridium-rhodium alloy are also limit as spark plug electricity The application of pole material.
It is a kind of cheap therefore, it is necessary to find, and can safely and effectively prepare iridium and the conjunction of iridium rhodium of regular shape The method of gold.
The content of the invention
In order to solve the above technical problem, the present invention provides a kind of spark plug iraurite that can safely and effectively prepare regular shape Electrode, and the iridium nickel alloy of the production cost of iraurite electrode, preparation method and applications can be reduced.
The technical solution adopted by the present invention is as follows：
A kind of iridium nickel alloy, is made of the component of following mass percent：Iridium 40 ~ 70%, nickel 30 ~ 60%.
A kind of preparation method of above-mentioned iridium nickel alloy, includes the following steps：
1）Nickel and iridium are weighed by mass percentage, are placed under vacuum environment；
2）The mixture of nickel and iridium is heated, obtains aluminium alloy；
3）By step 2）Gained aluminium alloy is poured into smelt and cast in mould；
4）To step 3）Gained iridium Ni alloy ingot Homogenization Treatments.
In the preparation method of above-mentioned iridium nickel alloy, step 1）In vacuum environment using vacuum casting equipment realize.
In the preparation method of above-mentioned iridium nickel alloy, step 1）Concrete operations are as follows：Prepare and smelt mould, and mould will be smelted Tool is placed in vacuum casting equipment, and the nickel weighed and iridium are put into the crucible in vacuum casting equipment.
In the preparation method of above-mentioned iridium nickel alloy, step 1）In smelting mould made by copper, smelt the die cavity of mould A diameter of 20 ~ 45mm, length are 20 ~ 60 mm；The vacuum casting equipment is using vacuum drying oven.
In the preparation method of above-mentioned iridium nickel alloy, step 2）Concrete operations it is as follows：Vacuumized in vacuum drying oven, and to It is filled with argon gas in vacuum drying oven, electrified regulation, melts to iridium nickel mixture, insulation, and when insulation carries out magnetic to the aluminium alloy in crucible Power stirs.
In the preparation method of above-mentioned iridium nickel alloy, step 2）In vacuum drying oven is evacuated to vacuum for 2.0 ~ 5.0 × 10-3MPa, it is 0.5 ~ 0.8MPa that argon gas to vacuum is filled with into vacuum drying oven；Vacuum drying oven is heated to temperature as 2150 ~ 2400 DEG C； Soaking time is：0.5~1min；Output current is 25 ~ 40A during magnetic agitation.
In the preparation method of above-mentioned iridium nickel alloy, step 2）In vacuum drying oven energization before, repetition vacuumize and be filled with Argon gas operates 2 ~ 4 times.
In the preparation method of above-mentioned iridium nickel alloy, step 4）Concrete operations are as follows：Iridium Ni alloy ingot is put into heating In stove；Vacuum is evacuated to heating furnace as 1.0 ~ 2.0 × 10-2MPa, or heating furnace is evacuated to vacuum for 1.0 ~ 2.0×10-1MPa, it is 0.5 ~ 0.8 MPa to be then charged with hydrogen to vacuum；It is heated to 1000 ~ 1400 DEG C, insulation 20 ~ 120min。
The application of iridium Ni alloy ingot prepared by the preparation method of above-mentioned iridium nickel alloy in sparking-plug electrode, including such as Lower step：
1) iridium nickel alloy is processed into the cylinder of a diameter of 0.5-4mm；
2）By step 1）One end of the iridium nickel alloy of middle processing and the iridium of a diameter of 0.5-4mm, iridium-rhodium alloy or Inconel 600 Barred body one end welding of alloy, obtains sparking-plug electrode.
Application of the above-mentioned iridium nickel alloy in sparking-plug electrode, step 2）Middle welding manner is using resistance welding； When being welded with iridium or iridium-rhodium alloy barred body：Weld interval is：1.5 ~ 2.0s, current density are：80~120A/mm2, pressure is：25 ~40Mpa；When being welded with 600 alloy barred bodies of Inconel：Weld interval is：0.6 ~ 2.0s, current density are：60~100A/ mm2, pressure is：10~30MPa.
Compared with prior art, the beneficial effects of the invention are as follows：
1. the present invention is intermediate layer welding material, iridium, iridium rhodium 10, iridium rhodium 25, iridium rhodium 40, Inconel 600 can have both been realized The good welds of the metals such as alloy and iridium nickel alloy, finally solve and iridium, iridium rhodium 10, iridium rhodium 25, iridium rhodium 40 and Inconel The welding problem of 600 alloys；
Prepared 2. the present invention is used for sparking-plug electrode, noble metal 30 ~ 60% can be saved.
3. sparking-plug electrode prepared by the present invention, room temperature ~ 900 DEG C cool-hot fatigue 100 ~ 200 times, bead crack are less than weld seam The 1/5 of cross sectional dimensions, has good thermal fatigue resistance energy.
Embodiment
The present invention is made with reference to embodiment further in detail, intactly to illustrate.The material or instrument occurred in embodiment Device is operated in a specific embodiment but specified otherwise, is commercially available according to its specification, and therefore not to repeat here.
Embodiment 1
A kind of iridium nickel alloy, is made of the component of following mass percent：Iridium 40%, nickel 60%.Its preparation method, including following step Suddenly：
（1）Die-filling tool：A diameter of 20 mm of die cavity, the smelting mould that length is 60 mm are assembled in vacuum arc furnace ignition；
（2）Fill sample：Vacuum arc furnace ignition is started shooting, by the high-purity iridium of 40g (>99.9 wt. %) and 60g high purity nickels (>99.9 wt. %) it is put into the crucible of vacuum arc furnace ignition；
（3）Vacuumize：Vacuum valve is opened, vacuum is evacuated to vacuum arc furnace ignition as 2.0 × 10-3MPa, then by vacuum valve Tighten；
（4）Inflation：Argon gas is filled with to vacuum arc furnace ignition sample room, is 0.50MPa to vacuum；
（5）Repeat step（2）To step（3）Operation；
（6）Vacuum arc furnace ignition is powered, and the mixture of Ni and Ir is melted in striking, after continuous heating to mixture melts, continues to heat Until 2150 DEG C；
（7）To step（6）The molten metal thermal insulation 1min of gained, while magnetic agitation is carried out to molten metal, magnetic agitation output electricity Flow for 40A；
（8）Molten metal is injected and is smelted in mould, into the iridium nickel alloy cylinder of φ 20mm；
（9）Iridium nickel alloy cylinder is put into tube furnace, and 2.0 × 10 are evacuated to tube furnace-1MPa, then into tube furnace Gas is flushed with hydrogen to 0.80MPa, 1000 DEG C is warming up to, keeps the temperature 120min.
Application of the iridium nickel alloy in sparking-plug electrode, concrete operations are as follows：
1）The iridium nickel alloy cylinder of the φ 20mm is cut into the cylinder of 0.55 ~ 0.6mm of φ；
2）By one end resistance welding of the cylindrical member at one end of 0.55 ~ 0.6mm of φ and 10 alloy barred body of φ 0.5mm iridium rhodium, during welding Between 1.5s, current density 80A/mm2, pressure 25MPa, obtains sparking-plug electrode.
Or by the other end of the cylinder iridium nickel alloy of 0.55 ~ 0.6mm of φ and 600 alloy bars of Inconel of arbitrary dimension One end resistance welding of body, weld interval 0.6s, current density 60A/mm2, pressure 10MPa, obtains sparking-plug electrode.
Gained sparking-plug electrode is less than seam cross-section size through room temperature ~ 900 DEG C cool-hot fatigue 100 times, bead crack 1/5。
Embodiment 2
A kind of iridium nickel alloy, is made of the component of following mass percent：Iridium 70%, nickel 30%.Its preparation method, including following step Suddenly：
（1）Die-filling tool：A diameter of 30 mm of die cavity, the smelting mould that length is 50 mm are assembled in vacuum arc furnace ignition；
（2）Fill sample：Vacuum arc furnace ignition is started shooting, by the high-purity iridium of 70g (>99.9 wt. %) and 30g high purity nickels (>99.9 wt. %) it is put into the crucible of vacuum arc furnace ignition；
（3）Vacuumize：Vacuum valve is opened, vacuum is evacuated to vacuum arc furnace ignition as 5.0 × 10-3MPa, then by vacuum valve Tighten；
（4）Inflation：Argon gas is filled with to vacuum arc furnace ignition sample room, is 0.80MPa to vacuum；
（5）Repeat step（2）To step（3）Operation is twice；
（6）Vacuum arc furnace ignition is powered, and the mixture of Ni and Ir is melted in striking, after continuous heating to mixture melts, continues to heat Until 2400 DEG C；
（7）To step（6）The molten metal thermal insulation 0.5min of gained, while magnetic agitation is carried out to molten metal, magnetic agitation output Electric current is 40A；
（8）Molten metal is injected and is smelted in mould, into the iridium nickel alloy cylinder of φ 30mm；
（9）Iridium nickel alloy cylinder is put into tube furnace, and 1.0 × 10 are evacuated to tube furnace-1MPa, then into tube furnace Gas is flushed with hydrogen to 0.50MPa, 1400 DEG C is warming up to, keeps the temperature 20min.
Application of the iridium nickel alloy in sparking-plug electrode, concrete operations are as follows：
1) the iridium nickel alloy cylinder of the φ 30mm is cut into the cylinder of 0.85 ~ 0.9mm of φ;
2) by one end resistance welding of the cylindrical member at one end of 0.85 ~ 0.9mm of φ and 10 alloy barred body of φ 0.8mm iridium rhodium, during welding Between 1.6s, current density 100A/mm2, pressure 30MPa, obtains sparking-plug electrode.
Or by the other end of the cylinder iridium nickel alloy of 0.85 ~ 0.9mm of φ and 600 alloy bars of Inconel of arbitrary dimension One end resistance welding of body, weld interval 1.2s, current density 80A/mm2, pressure 20MPa, obtains sparking-plug electrode.
Gained sparking-plug electrode is less than seam cross-section size through room temperature ~ 900 DEG C cool-hot fatigue 100 times, bead crack 1/5。
Embodiment 3
A kind of iridium nickel alloy, is made of the component of following mass percent：Iridium 50%, nickel 50%.Its preparation method, including following step Suddenly：
（1）Die-filling tool：A diameter of 45 mm of die cavity, the smelting mould that length is 20 mm are assembled in vacuum arc furnace ignition；
（2）Fill sample：Vacuum arc furnace ignition is started shooting, by the high-purity iridium of 50g (>99.9 wt. %) and 50g high purity nickels (>99.9 wt. %) it is put into the crucible of vacuum arc furnace ignition；
（3）Vacuumize：Vacuum valve is opened, vacuum is evacuated to vacuum arc furnace ignition as 3.5 × 10-3MPa, then by vacuum valve Tighten；
（4）Inflation：Argon gas is filled with to vacuum arc furnace ignition sample room, is 0.65MPa to vacuum；
（5）Repeat step（2）To step（3）Operation is three times；
（6）Vacuum arc furnace ignition is powered, and the mixture of Ni and Ir is melted in striking, after continuous heating to mixture melts, continues to heat Until 2250 DEG C；
（7）To step（6）The molten metal thermal insulation 0.65min of gained, while magnetic agitation is carried out to molten metal, magnetic agitation output Electric current is 35A；
（8）Molten metal is injected and is smelted in mould, into the iridium nickel alloy cylinder of φ 45mm；
（9）Iridium nickel alloy cylinder is put into tube furnace, and 1.5 × 10 are evacuated to tube furnace-1MPa, then into tube furnace Gas is flushed with hydrogen to 0.65MPa, 1200 DEG C is warming up to, keeps the temperature 80min.
Application of the iridium nickel alloy in sparking-plug electrode, concrete operations are as follows：
1) the iridium nickel alloy cylinder of the φ 45mm is cut into the cylinder of 3.85 ~ 3.90mm of φ,
2) by one end resistance welding of the cylindrical member at one end of 3.85 ~ 3.90mm of φ and 10 alloy barred body of φ 3.8mm iridium rhodium, during welding Between 2.0s, current density 120A/mm2, pressure 40MPa, obtains sparking-plug electrode.
Or by the other end of the cylinder iridium nickel alloy of 3.85 ~ 3.90mm of φ and 600 alloys of Inconel of arbitrary dimension One end resistance welding of barred body, weld interval 2.0s, current density 100A/mm2, pressure 30MPa, obtains sparking-plug electrode.
Gained sparking-plug electrode is less than seam cross-section size through room temperature ~ 900 DEG C cool-hot fatigue 150 times, bead crack 1/5。
Performance test
Iridium nickel alloy electrode obtained by above-described embodiment and conventional laser welding electrode are subjected to cool-hot fatigue experiment, cool-hot fatigue 30% ~ 50% can be improved.
To sum up, the application technology of a kind of iridium nickel alloy using the present invention, the iraurite electrode applied to spark plug have weight The actual application value wanted；Save noble metal 30 ~ 60%.And solves noble metal with nickel-base alloy due to coefficient of thermal expansion differences Caused by not greatly the problem of welding quality unstable；Solve large scale noble metal and the ropy difficulty of Nickel-based Alloy Welding Topic；Room temperature ~ 900 DEG C cool-hot fatigue 100 ~ 200 times, bead crack are less than the 1/5 of seam cross-section size, thermal fatigue resistance energy It is good.

Claims (11)

  1. A kind of 1. iridium nickel alloy, it is characterised in that：It is made of the component of following mass percent：Iridium 40 ~ 70%, nickel 30 ~ 60%.
  2. 2. a kind of preparation method of the iridium nickel alloy described in claim 1, includes the following steps：
    1）Nickel and iridium are weighed by mass percentage, are placed under vacuum environment；
    2）The mixture of nickel and iridium is heated, obtains aluminium alloy；
    3）By step 2）Gained aluminium alloy is poured into smelt and cast in mould；
    4）To step 3）Gained iridium Ni alloy ingot Homogenization Treatments.
  3. 3. the preparation method of iridium nickel alloy according to claim 2, it is characterised in that：Step 1）In vacuum environment use Vacuum casting equipment is realized.
  4. 4. the preparation method of iridium nickel alloy according to claim 3, step 1）Concrete operations are as follows：Prepare and smelt mould, And be placed in mould is smelted in vacuum casting equipment, the nickel weighed and iridium are put into the crucible in vacuum casting equipment.
  5. 5. the preparation method of iridium nickel alloy according to claim 4, step 1）In smelting mould made by copper, smelt mould A diameter of 20 ~ the 45mm of die cavity of tool, length are 20 ~ 60 mm；The vacuum casting equipment is using vacuum drying oven.
  6. 6. the preparation method of iridium nickel alloy according to claim 5, step 2）Concrete operations it is as follows：Taken out in vacuum drying oven Vacuum, and argon gas is filled with into vacuum drying oven, electrified regulation, melts to iridium nickel mixture, insulation, to the alloy in crucible during insulation Liquid carries out magnetic agitation.
  7. 7. the preparation method of iridium nickel alloy according to claim 6, step 2）In vacuum be evacuated to vacuum drying oven be 2.0~5.0×10-3MPa, it is 0.5 ~ 0.8 MPa that argon gas to vacuum is filled with into vacuum drying oven；Vacuum drying oven is heated to temperature 2150~2400℃；Soaking time is：0.5~1min；Output current is 25 ~ 40A during magnetic agitation.
  8. 8. the preparation method of iridium nickel alloy according to claim 6, step 2）In before vacuum drying oven energization, repeat to take out true Sky operates 2 ~ 4 times with argon gas is filled with.
  9. 9. the preparation method of iridium nickel alloy according to claim 3, step 4）Concrete operations are as follows：By iridium Ni alloy ingot It is put into heating furnace；Vacuum is evacuated to heating furnace as 1.0 ~ 2.0 × 10-2MPa, or vacuum is evacuated to heating furnace Spend for 1.0 ~ 2.0 × 10-1MPa, it is 0.5 ~ 0.8 MPa to be then charged with hydrogen to vacuum；1000 ~ 1400 DEG C are heated to, insulation 20~120min。
  10. 10. application of the iridium nickel alloy in sparking-plug electrode described in claim 1, includes the following steps：
    1) iridium nickel alloy is processed into the cylinder of a diameter of 0.5-4mm；
    2）By step 1）One end of the iridium nickel alloy of middle processing and the iridium of a diameter of 0.5-4mm, iridium-rhodium alloy or Inconel 600 Barred body one end welding of alloy, obtains sparking-plug electrode.
  11. 11. application of the iridium nickel alloy according to claim 10 in sparking-plug electrode, step 2）Middle welding manner uses Be resistance welding；When being welded with iridium or iridium-rhodium alloy barred body：Weld interval is：1.5 ~ 2.0s, current density are：80~120A/ mm2, pressure is：25~40Mpa；When being welded with 600 alloy barred bodies of Inconel：Weld interval is：0.6 ~ 2.0s, current density For：60~100A/mm2, pressure is：10~30MPa.
CN201711344210.2A 2017-12-15 2017-12-15 A kind of iridium nickel alloy, preparation method and applications Pending CN108018455A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112553487A (en) * 2020-12-14 2021-03-26 昆明富尔诺林科技发展有限公司 Iridium-nickel alloy spark plug center electrode material with good high-temperature durable ablation performance and preparation method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001353505A (en) * 2000-06-12 2001-12-25 Ishifuku Metal Ind Co Ltd METHOD FOR MANUFACTURING METAL PLATE OF Ir AND Ir ALLOY AND BASE TOCK CHIP
US20090127996A1 (en) * 2007-11-15 2009-05-21 Passman Eric P Iridium alloy for spark plug electrodes
WO2010029944A1 (en) * 2008-09-09 2010-03-18 日本特殊陶業株式会社 Spark plug
CN106132589A (en) * 2014-03-28 2016-11-16 田中贵金属工业株式会社 Comprise the metal wire rod of iridium or iridium alloy
CN106884103A (en) * 2015-12-16 2017-06-23 湖南科技大学 A kind of preparation method of NiAlIr alloys
CN107078472A (en) * 2014-08-01 2017-08-18 庄信万丰股份有限公司 Rhodium alloy

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001353505A (en) * 2000-06-12 2001-12-25 Ishifuku Metal Ind Co Ltd METHOD FOR MANUFACTURING METAL PLATE OF Ir AND Ir ALLOY AND BASE TOCK CHIP
US20090127996A1 (en) * 2007-11-15 2009-05-21 Passman Eric P Iridium alloy for spark plug electrodes
WO2010029944A1 (en) * 2008-09-09 2010-03-18 日本特殊陶業株式会社 Spark plug
CN106132589A (en) * 2014-03-28 2016-11-16 田中贵金属工业株式会社 Comprise the metal wire rod of iridium or iridium alloy
CN107078472A (en) * 2014-08-01 2017-08-18 庄信万丰股份有限公司 Rhodium alloy
CN106884103A (en) * 2015-12-16 2017-06-23 湖南科技大学 A kind of preparation method of NiAlIr alloys

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"贵就一定好? 浅析火花塞", 《当代汽车》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112553487A (en) * 2020-12-14 2021-03-26 昆明富尔诺林科技发展有限公司 Iridium-nickel alloy spark plug center electrode material with good high-temperature durable ablation performance and preparation method thereof
CN112553487B (en) * 2020-12-14 2021-11-26 昆明富尔诺林科技发展有限公司 Iridium-nickel alloy spark plug center electrode material with good high-temperature durable ablation performance and preparation method thereof

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