EP2726638A2 - Utilisation d'un alliage ductile résistant à la corrosion par les gaz chauds - Google Patents

Utilisation d'un alliage ductile résistant à la corrosion par les gaz chauds

Info

Publication number
EP2726638A2
EP2726638A2 EP12723861.6A EP12723861A EP2726638A2 EP 2726638 A2 EP2726638 A2 EP 2726638A2 EP 12723861 A EP12723861 A EP 12723861A EP 2726638 A2 EP2726638 A2 EP 2726638A2
Authority
EP
European Patent Office
Prior art keywords
weight
hot gas
gas corrosion
corrosion resistant
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.)
Pending
Application number
EP12723861.6A
Other languages
German (de)
English (en)
Inventor
Albrecht Geissinger
Simon Schmittinger
Pavlo Saltikov
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2726638A2 publication Critical patent/EP2726638A2/fr
Pending legal-status Critical Current

Links

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
    • C22C19/03—Alloys based on nickel or cobalt based on nickel
    • C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
    • 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
    • C22C19/007—Alloys based on nickel or cobalt with a light metal (alkali metal Li, Na, K, Rb, Cs; earth alkali metal Be, Mg, Ca, Sr, Ba, Al Ga, Ge, Ti) or B, Si, Zr, Hf, Sc, Y, lanthanides, actinides, as the next major constituent
    • 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
    • C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
    • C22C19/058—Alloys based on nickel or cobalt based on nickel with chromium without Mo and W
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C30/00—Alloys containing less than 50% by weight of each constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
    • F23Q7/001—Glowing plugs for internal-combustion engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
    • F23Q7/001—Glowing plugs for internal-combustion engines
    • F23Q2007/004—Manufacturing or assembling methods

Definitions

  • the invention relates to the use of a hot gas corrosion resistant ductile alloy in components exposed to high temperatures and corrosive gases.
  • the alloy can be used as a material for the manufacture of glow plugs of glow plugs. Glow plugs are used for the cold start of
  • Diesel engines are used and are exposed to high temperatures and corrosive gases.
  • Glow plugs with a metallic glow tube typically reach annealing temperatures in the range of about 1000 ° C to 1050 ° C, with higher temperatures are possible for a short time.
  • the material used must have good creep resistance, so that the glow tube remains dimensionally stable and does not bend. The position of the glow plug to the
  • Injection jets are important for the optimal ignition of the fuel. Therefore, a deformed glow plug would result in uneven combustion with increased pollutant emissions when used in an internal combustion engine.
  • the glow plugs are exposed to corrosive gases in the combustion chamber, which can attack the material of the glow tube.
  • a corroded glow tube can no longer prevent the ingress of air, water and other substances and leads to the destruction of the resistor element contained and thus to the failure of the glow plug.
  • To withstand the high temperatures and the corrosive gases are used for the glow tubes
  • Such a glow tube is known, for example, from DE 10 2009 000 751 A1. It is made of a nickel base alloy by a forming process (deep drawing) or by extrusion of a compound from a metal powder or by metal powder injection molding. In addition to the application in glow plugs components are made
  • Exhaust gas turbochargers in protective tubes for sensors. In heating technology, these alloys are used to manufacture ignition electrodes and various sensors.
  • Nickel-base alloys are very expensive because of the high price of nickel and, depending on the composition, have adverse processing properties.
  • the alloy NiCr25FeAIY has an excellent oxidation or
  • Corrosion resistance and also a high creep resistance can be processed only to a limited extent in forming processes.
  • Components such as a glow tube can not be made of this alloy by e.g. Deep drawing can be made. There must be other, more elaborate manufacturing methods used.
  • the alloy NiCr23Fe is easy to shape. Due to their lower oxidation and
  • Such an alloy is offered under the material number 1 .4888 (X10NiCrSiLa38-22).
  • material number 1 .4888 X10NiCrSiLa38-22.
  • one or more of the elements cerium, yttrium, zirconium, hafnium, titanium can be alloyed with up to 0.5% by weight.
  • Table 1 is a comparison of the elongation at break between the nickel alloys NiCr25FeAIY, NiCr23Fe and the proposed alloy for use in glow tubes with the material number 1 .4888.
  • the data are taken from the DIN standards "DIN 17750: 2002-09" and the data sheet "Cronifer 40B Material Data Sheet No. 4051 March 2010 Edition".
  • the alloy with the material number 1 .4888 has a high elongation at break and can be processed well by forming.
  • This alloy has a high oxidation resistance and a good creep stability at the annealing temperature.
  • the alloy is ductile and can easily be transformed like NiCr23Fe.
  • the glow tube is formed from this alloy by means of a forming process. Used in the glow plug according to the invention permanent annealing temperatures of up to 1050 ° C and short-term up to 1 100 ° C are possible.
  • the alloy is resistant to the in
  • Combustion chamber of an internal combustion engine present corrosive influences and remains dimensionally stable even at high temperatures.
  • the hot gas corrosion resistance of alloy no. 1.4888 is inferior to that of NiCr23 Fe and NiCr25 FeIlY alloys.
  • the alloy with the material number 1.4888 such as temperature resistance and corrosion resistance as well as the easy formability, it is also suitable for other components that are exposed to high temperatures and corrosive gases. Conceivable further uses for the alloy arise, for example, as spark plugs for internal combustion engines, exhaust gas turbocharger, protective tubes for Sensors and in heating technology for ignition electrodes in oil burners or gas burners as well as for flame sensors.
  • the glow tube made of the alloy with the material number 1 .4888 has a high temperature resistance up to 1 100 ° C. Without any restrictions on the service life, a maximum annealing temperature of 1 100 ° C and a high afterglow temperature of 1050 ° C can be achieved.
  • the glow tube is furthermore resistant to the corrosive influences present in the combustion chamber of an internal combustion engine. This ensures that the resistance element enclosed by the glow tube is also protected and prevents premature failure of the component.
  • the glow tube has a good resistance to deformation. This ensures a good ignition of the fuel mixture and thus a uniform combustion with low emissions when using the glow plug in an internal combustion engine.
  • NiCr25FeAIY fulfills the corrosion resistance requirements of the currently widely used nickel-based alloys, the material costs are very high due to the high nickel content. All previously used alloys have in common is the high nickel content, and thus a high material price.
  • the alloy proposed for use in a glow tube shows good
  • the alloy with the material number 1.4888 can be easily formed by forming processes such as extrusion, drawing, deep drawing and other processes.
  • the advantages mentioned can also be transferred to other uses of the alloy, such as spark plugs for internal combustion engines, exhaust gas turbochargers, protective tubes for sensors and ignition electrodes and flame sensors in heating technology.
  • Fig. 1 shows an embodiment of the glow plug according to the invention.
  • Fig. 1 the inventive use of the alloy with the material number 1 .4888 is shown as a material for the glow tube 4 of a glow plug 1 1.
  • Shunt plug 1 1 comprises the glow tube 4, which encloses a resistance element 12, a housing 5 and electrical connection devices in the form of a round plug 10.
  • the resistance element 12 enclosed by the glow tube 4 comprises a heating coil 1 on the side facing the combustion chamber of an internal combustion engine and a control coil 3 on the side facing the circular connector 10.
  • the remaining interior in the glow tube 4 is filled with an electrically insulating heat conducting powder 2 such as, for example, magnesium oxide powder ,
  • the heating coil 1 has a nearly
  • the electrical resistance of the control coil 3 is low and it can flow a large current through the heating coil 1.
  • the resistance in the control coil 3 increases and the current flow decreases.
  • the temperature in the glow tube 4 is controlled independently of external control devices. It is also conceivable, however, an embodiment without control coil 3, in which the temperature is controlled in other ways, such as with an external control device.
  • the resistance element 12 is electrically conductively connected on one side to the glow tube 4.
  • the other side is contacted by a connecting bolt 7.
  • the glow tube is partially received by the housing 5.
  • the glow tube 4 is sealed against the housing 5 by a press connection.
  • Temperature-resistant elastomer seal 6 This seal 6 hermetically seals the interior of the glow tube from the atmosphere in the engine compartment. After closing the seal 6 residual amounts of H 2 0, N 2 or 0 2 remaining in the glow tube 4 could react at high temperatures with the heating coil 1 or the control coil 3 and damage it. To bind these residues, the inside of the glow tube 4 can be coated with a getter material. This few ⁇ thick
  • Coating with, for example, aluminum or magnesium reacts during heating of the Glow tube 4 with the residual amounts of H 2 0, N 2 or 0 2 in the glow tube 4. Additionally or alternatively, the getter can also be added to the bathleitpulver 2 in small quantities.
  • the connecting bolt 7 extends through the housing and is connected at the end with the connecting device designed as a round plug 10. Between round plug 10 and the connecting device designed as a round plug 10.
  • Housing 5 is an insulating 9 arranged from a non-electrically conductive material.
  • the hot gas resistant ductile alloy can also be used in spark plugs for
  • the alloy with the material number 1.4888 is particularly suitable as an electrode material for the center electrode.
  • the hot gas resistant ductile alloy can also be used as a protective tube for various sensors. Many sensors are sensitive to high temperatures or are easily attacked by corrosive gases.
  • the protective tube made of the alloy with the material number 1.4888 envelops the sensor, for example a lambda probe or the flame sensor of an oil burner or gas burner, and protects it from the damaging environmental influences.
  • the alloy Due to its high oxidation resistance and creep resistance, the alloy is well suited as a material for ignition electrodes in heating technology.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Resistance Heating (AREA)

Abstract

L'invention concerne l'utilisation d'un alliage ductile résistant à la corrosion par les gaz chauds, qui contient: entre 36 et 39% en poids de nickel, entre 20 et 23% en poids de chrome, entre 0 et 0,12% en poids de carbone, entre 0 et 1% en poids de manganèse, entre 1,3 et 2, 2% en poids de silicium, entre 0 et 0,5% en poids d'aluminium, entre 0,03 et 0,5% en poids de lanthane, entre 0 et 0,03% de soufre, entre 0 et 0,03% en poids de phosphore, entre 0 et 0,5% en poids de cuivre, le reste étant du fer, la somme de tous les composants ne dépassant pas 100% en poids, comme matériau pour des tubes incandescents pour bougies-crayons de moteurs à autoallumage et pour d'autres composants qui sont exposés à des températures élevées et à l'action de gaz corrosifs.
EP12723861.6A 2011-06-21 2012-05-23 Utilisation d'un alliage ductile résistant à la corrosion par les gaz chauds Pending EP2726638A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110077893 DE102011077893A1 (de) 2011-06-21 2011-06-21 Verwendung einer heißgaskorrosionsbeständigen duktilen Legierung
PCT/EP2012/059585 WO2012175271A2 (fr) 2011-06-21 2012-05-23 Utilisation d'un alliage ductile résistant à la corrosion par les gaz chauds

Publications (1)

Publication Number Publication Date
EP2726638A2 true EP2726638A2 (fr) 2014-05-07

Family

ID=46172784

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12723861.6A Pending EP2726638A2 (fr) 2011-06-21 2012-05-23 Utilisation d'un alliage ductile résistant à la corrosion par les gaz chauds

Country Status (5)

Country Link
EP (1) EP2726638A2 (fr)
JP (1) JP5774215B2 (fr)
CN (1) CN103620072A (fr)
DE (1) DE102011077893A1 (fr)
WO (1) WO2012175271A2 (fr)

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CN103272877A (zh) * 2013-05-23 2013-09-04 苏州贝思特金属制品有限公司 一种低碳镍铬铁合金无缝管
JP2015155790A (ja) * 2014-01-15 2015-08-27 日本特殊陶業株式会社 シースヒータ、グロープラグ
CN104451426A (zh) * 2014-11-14 2015-03-25 无锡信大气象传感网科技有限公司 一种用于制作称重传感器弹性体的不锈钢材料
JP6795886B2 (ja) * 2015-02-10 2020-12-02 日本特殊陶業株式会社 グロープラグ及びその製造方法
DE102016111736B4 (de) * 2016-06-27 2020-06-18 Heraeus Nexensos Gmbh Hülse zur Abdeckung eines Temperatursensors, Temperaturmessvorrichtung mit einer derartigen Hülse, Verfahren zum Verbinden einer derartigen Hülse mit einer Temperaturmessvorrichtung und Verwendung einer Legierung
CN109309369B (zh) * 2017-07-27 2020-08-11 中国石油天然气股份有限公司 一种用于密封仪表探头信号线的堵头
DE102019204225A1 (de) * 2019-03-27 2020-10-01 Robert Bosch Gmbh Vorbehandlungsverfahren zum Vorbehandeln von Bauteilen vor einem galvanischen Beschichten

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Also Published As

Publication number Publication date
CN103620072A (zh) 2014-03-05
JP5774215B2 (ja) 2015-09-09
WO2012175271A3 (fr) 2013-09-26
JP2014522450A (ja) 2014-09-04
DE102011077893A1 (de) 2012-12-27
WO2012175271A2 (fr) 2012-12-27

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