US3853602A - Sliding member - Google Patents

Sliding member Download PDF

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Publication number
US3853602A
US3853602A US00311619A US31161972A US3853602A US 3853602 A US3853602 A US 3853602A US 00311619 A US00311619 A US 00311619A US 31161972 A US31161972 A US 31161972A US 3853602 A US3853602 A US 3853602A
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US
United States
Prior art keywords
percent
sliding member
sprayed layer
sprayed
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 - Lifetime
Application number
US00311619A
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English (en)
Inventor
Y Nakamura
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.)
Nippon Piston Ring Co Ltd
Original Assignee
Nippon Piston Ring Co Ltd
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 Nippon Piston Ring Co Ltd filed Critical Nippon Piston Ring Co Ltd
Application granted granted Critical
Publication of US3853602A publication Critical patent/US3853602A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J10/00—Engine or like cylinders; Features of hollow, e.g. cylindrical, bodies in general
    • F16J10/02—Cylinders designed to receive moving pistons or plungers
    • F16J10/04—Running faces; Liners
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S384/00—Bearings
    • Y10S384/90—Cooling or heating
    • Y10S384/912—Metallic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12951—Fe-base component
    • Y10T428/12958—Next to Fe-base component

Definitions

  • ABSTRACT A sliding member having a scuff resistant and abrasion resistant sprayed layer on at least its sliding surface.
  • the sprayed layer consists of a ferrous alloy containing more than 2 percent but less than the stoichiometric amount based on FeS of S, or 20 95 wt. percent of the ferrous alloy and 80 5 wt. percent of at least one ingredient selected from the group consisting of W, Mo, Ni-Cr alloy, Ni-Al alloy, and mixtures thereof.
  • the present invention relates to an improvement in a sliding member, for example, a piston ring or cylinder liner of an internal combustion engine. More particularly, the present invention provides a sliding member having excellent scuff resistant and abrasion resistant sprayed layer on at least its sliding surface.
  • the effective depth of the sulfurized layer obtained by the liquid, solid or gas sulfurizing process is generally about 0.l mm or less; especially the sulfurized layer formed on the cast iron base body is extremely thin so that it is not durable for a long period of use under the severe normal operating conditions.
  • the base body of the sliding member must be made from iron or steel in order to form the FeS layer thereon.
  • the sulfurizing process requires the use of poisonous chemicals, such as NaCN, which is very injurious to health.
  • the base body must be treated at a high temperature such as 400 600C, this sulfurizing process has adverse effects upon the properties of the sliding member.
  • the present invention overcomes the abovedescribed defect of the conventional sulfurizing process and provides a sliding member having a sprayed layer on at least its sliding surface.
  • the sprayed layer comprises a ferrous alloy containing 2 53.5 wt. percent more than 2 percent but less than the stoichiometric amount based on FeS of S, or 20 95 wt. percent of the ferrous alloy and 80 5 wt. percent of at least one ingredient selected from the group consisting of W, Mo, Ni-Cr alloy, Ni-Al alloy and mixtures thereof, and is superior to the FeS layer obtained by the conventional sulfurizing process in scuff resistance and abrasion resistance.
  • FIGURE shows the abrasion resistance of several piston ring specimens in an actual engine test, wherein specimen No. l is a conventional piston ring having a sprayed Mo layer, specimen No. 2 is the piston ring of this invention as described in Example 1 below.
  • One embodiment of the present invention is a sliding member having a scuff resistant and abrasion resistant sprayed layer on at least its sliding surface which is formed by spraying a ferrous alloy containing 2 53.5 wt percent, or more than 2 percent by weight but less than the stoichiometric amount based on FeS of S, of sulfur on a surface of a base body of the sliding member.
  • the spraying treatment as described above ineludes not only the plasma-spraying treatment but also the gas-spraying treatment.
  • the resultant sprayed layer laminated on the surface of the base body is strongly adhered to the surface of the base body and has excellent abrasion resistance properties, and in particular, the layer is formed as a porous structure having a small coefficient of friction. Therefore, the sliding member laminated with such a sprayed porous layer on its sliding surface is impregnated with lubricating oil when it is actually used, so that it has sufficient oil retention properties.
  • the sliding member of the present invention can be used for long periods of time under such conditions which cause scuffing on the sliding surface.
  • the hardness of the sprayed layer of the present invention is usually about 500 600 HV (30), however, if a higher hardness than the usual value is desired, a small amount of a metal oxide such as A1 0 or the like or a metal carbide such as WC or the like may be added to the ferrous alloy containing sulfur.
  • the sulfur content in the sprayed layer is not more than 2 wt. percent the scuff resistance of the sliding member does not reach the desired level.
  • the sulfur content exceeds 53.5 wt. percent (the theoretical sulfur content in FeS is 53.5 wt. percent) the hardness of the sprayed layer is undesirably decreased to cause a reduction in the abrasion resistance. Accordingly, the sulfur content in the sprayed layer must be restricted in a range of 2 to 53.5 wt. percent.
  • EXAMPLE I Spraying Gun Metco type 3M plasma-spraying gun Amount of N Gas Flow: I00 ftlhr. Pressure of N Gas: 50 lb/in. Amount of H Gas Flow: 10 ft lhr. Pressure of H Gas: 50 lb/in. Electric current: 300 A Spraying Distance: 4 in.
  • EXAMPLE 2 A powder of a mixture composed of 0.2 percent of TC (total carbon), 0.4 percent of Si, 0.5 percent of Mn, .10 percent of S, by weight, and the balance Fe was plasma-sprayed on a peripheral surface of a cast iron piston ring having the same composition as that described in Example 1 to form a porous sprayed layer having a thickness of 0.3 mm.
  • the HV (30) hardness of the sprayed layer was 550.
  • the spraying gunand the spraying conditions used were the same as that described in Example 1.
  • the piston ring specimens obtained in the Example 1, and another piston ring specimen obtained according to a process described in U.S. Pat. No. 3,133,739 were subjected to the actual engine testing to evaluate their abrasion resistance.
  • specimen No. 1 is the piston ring having a sprayed layer of 100 percent Mo formed by the process according to U.S. Pat. No. 3,133,739
  • specimen No. 2 is the piston ring obtained by the process of Example 1 of this invention.
  • specimen No. 1 shows an abrasion about of 0.6 14
  • specimen No. 2 shows an abrasion amount of only about of one-third of that of specimen No. 1'. This means that the abrasion resistance and scuff and resistance of the piston ring of this invention is far better than that of the conventional piston ring.
  • the sulfur containing ferrous alloy is lowpriced and is easily obtained in comparison with metallic Mo, so that the material cost of this invention is about one-thirtieth of that of the Mo sprayed piston ring.
  • the abrasion amount of the piston ring of this invention is about one-thirtieth of that of the Mo sprayed piston ring, in the words, the abrasion resistance of the piston ring of this invention is three times larger that of the Mo sprayed piston ring.
  • a sprayed layer of 20 95 wt. percent of a ferrous alloy containing 2 53.5 wt. percent of sulfur and 80 5 wt. percent of at least one ingredient selected from the group consisting of W, Mo, Ni Cr alloy, Ni A1 alloy, and mixtures thereof is laminated on the surface of the base body of the sliding member.
  • I sulfur in the above-described Examples 1 and 2 tends to form cracks thereat if the layer thickness exceeds about 0.2 mm, however, with a sprayed layer containing such metallic ingredients as W, Mo, N-Cr alloy and Ni-Al alloy in addition to a ferrous alloy containing sulfur the occurrence of cracks-can be prevented.
  • the reason for the crack formation is believed to be the contacting on cooling of the fine sulfur containing alloy particles a high temperature formed during the spraying operation contract; as the plasma-sprayed particles are heated at extremely high temperature, cracks are easily formed.
  • the powder mixture composed of a ferrous alloy containing sulfur and at least one metallic ingredient selected from a group consisting of W, Mo, Ni-Cr, Ni-Al, and mixtures thereof can be sprayed into a thicker layer of greater than a thickness of about 0.2 mm without crack formation. Therefore the toughness of the layer is improved to satisfy the abrasion resistance.
  • EXAMPLE 3 A powder of a mixture composed of wt. percent of FeS and 10 wt. percent of W was plasma-sprayed on a surface of a base body of a piston ring for use in a marine internal combustion engine to form a sprayed layer having a thickness of 0.5 mm.
  • This sprayed layer showed a HV (30) hardness of 500 and no crack formation.
  • the abrasion resistance and scuff resistance were also excellent and comparable with that of the sprayed layer as described in Examples l and 2.
  • the present invention provides a sliding member having excellent abrasion resistance and scuff resistance and a crackless sprayed layer on at least its sliding surface.
  • a sliding member comprising a scuff resistant and abrasion resistant sprayed layer composed of a ferrous alloy containing more than two per cent by weight but less than the stoichiometric amount based on FeS of sulfur laminated on at least its sliding surface.
  • a sliding member as claimed in claim 1, wherein said sprayed layer is composed of 20 wt. percent of a ferrous alloy containing 2 53.5 wt. percent of sulfur and 80 5 wt. percent of at least one ingredient selected from the group consisting of W, Mo, Ni-Cr alloy,
  • Ni-Al alloy Ni-Al alloy, and mixtures thereof.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Sliding-Contact Bearings (AREA)
US00311619A 1971-12-03 1972-12-04 Sliding member Expired - Lifetime US3853602A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9718171A JPS5310534B2 (de) 1971-12-03 1971-12-03

Publications (1)

Publication Number Publication Date
US3853602A true US3853602A (en) 1974-12-10

Family

ID=14185397

Family Applications (1)

Application Number Title Priority Date Filing Date
US00311619A Expired - Lifetime US3853602A (en) 1971-12-03 1972-12-04 Sliding member

Country Status (6)

Country Link
US (1) US3853602A (de)
JP (1) JPS5310534B2 (de)
DE (1) DE2258280B2 (de)
FR (1) FR2164285A5 (de)
GB (1) GB1415186A (de)
IT (1) IT973829B (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4072368A (en) * 1975-09-24 1978-02-07 Miba Gleitlager Aktiengesellschaft Sliding-surface bearing and process of manufacturing the same
US4085982A (en) * 1976-09-27 1978-04-25 The Singer Company Seal free liquid bearing
US4363737A (en) * 1981-06-15 1982-12-14 Alvaro Rodriguez Lubrication pastes
US4769210A (en) * 1981-12-18 1988-09-06 United Kingdom Atomic Energy Authority Apparatus for use in liquid alkali environment
US5187017A (en) * 1990-07-05 1993-02-16 Hitachi Construction Machinery Co., Ltd. Sliding member, and method and apparatus for producing the same by gas sulphonitriding
US5549398A (en) * 1993-08-06 1996-08-27 Skf Industrial Trading & Development Company B.V. Bearing arrangement, roller bearings for use therein, and a method for the manufacture of a part of the bearing arrangement
US20020042991A1 (en) * 2000-06-12 2002-04-18 Lg Electronics Inc. Method for manufacturing sliding parts for hermetic compressor
US20060035068A1 (en) * 2002-09-24 2006-02-16 Ishikawajima-Harima Heavy Industries Co., Ltd. Method for coating sliding surface of high-temperature member, high-temperature member and electrode for electro-discharge surface treatment
US20100086398A1 (en) * 2002-09-24 2010-04-08 Ihi Corporation Method for coating sliding surface of high-temperature member, high-temperature member and electrode for electro-discharge surface treatment
US20100124490A1 (en) * 2002-10-09 2010-05-20 Ihi Corporation Rotating member and method for coating the same

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2751461C3 (de) * 1977-11-18 1981-10-15 Mahle Gmbh, 7000 Stuttgart Verfahren zur Herstellung eines an Lauf-und Flankenflächen unterschiedlich beschichteten Kolbenringes
JPS5528379A (en) * 1978-08-23 1980-02-28 Nippon Piston Ring Co Ltd Wear resistant sliding material for internal combustion engine
JPS5569742A (en) * 1978-11-20 1980-05-26 Toyota Motor Corp Piston ring for internal combustion engine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2233304A (en) * 1936-09-16 1941-02-25 Bleakley Corp Apparatus for depositing fluent materials
US2622993A (en) * 1949-08-03 1952-12-23 Deering Milliken Res Trust Process of lubricating metal surface and article resulting therefrom
US2901380A (en) * 1956-10-12 1959-08-25 Electrofilm Inc Solid lubricant films having vitreous enamel binders
US3342626A (en) * 1963-10-02 1967-09-19 Avco Corp Flame spray metallizing
US3669719A (en) * 1970-03-02 1972-06-13 Quantum Inc Composite articles having metallic coating with high temperature lubricity
US3705818A (en) * 1968-12-31 1972-12-12 Citroen Sa Methods of coating rubbing surfaces and elements comprising such surfaces

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2233304A (en) * 1936-09-16 1941-02-25 Bleakley Corp Apparatus for depositing fluent materials
US2622993A (en) * 1949-08-03 1952-12-23 Deering Milliken Res Trust Process of lubricating metal surface and article resulting therefrom
US2901380A (en) * 1956-10-12 1959-08-25 Electrofilm Inc Solid lubricant films having vitreous enamel binders
US3342626A (en) * 1963-10-02 1967-09-19 Avco Corp Flame spray metallizing
US3705818A (en) * 1968-12-31 1972-12-12 Citroen Sa Methods of coating rubbing surfaces and elements comprising such surfaces
US3669719A (en) * 1970-03-02 1972-06-13 Quantum Inc Composite articles having metallic coating with high temperature lubricity

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4072368A (en) * 1975-09-24 1978-02-07 Miba Gleitlager Aktiengesellschaft Sliding-surface bearing and process of manufacturing the same
US4085982A (en) * 1976-09-27 1978-04-25 The Singer Company Seal free liquid bearing
US4363737A (en) * 1981-06-15 1982-12-14 Alvaro Rodriguez Lubrication pastes
US4769210A (en) * 1981-12-18 1988-09-06 United Kingdom Atomic Energy Authority Apparatus for use in liquid alkali environment
US5187017A (en) * 1990-07-05 1993-02-16 Hitachi Construction Machinery Co., Ltd. Sliding member, and method and apparatus for producing the same by gas sulphonitriding
US5290369A (en) * 1990-07-05 1994-03-01 Hitachi Construction Machinery Co., Ltd. Method of gas sulphonitriding
US5549398A (en) * 1993-08-06 1996-08-27 Skf Industrial Trading & Development Company B.V. Bearing arrangement, roller bearings for use therein, and a method for the manufacture of a part of the bearing arrangement
US20020042991A1 (en) * 2000-06-12 2002-04-18 Lg Electronics Inc. Method for manufacturing sliding parts for hermetic compressor
US6651328B2 (en) * 2000-12-06 2003-11-25 Lg Electronics Inc. Method for manufacturing sliding parts for hermetic compressor
US20060035068A1 (en) * 2002-09-24 2006-02-16 Ishikawajima-Harima Heavy Industries Co., Ltd. Method for coating sliding surface of high-temperature member, high-temperature member and electrode for electro-discharge surface treatment
US20100086398A1 (en) * 2002-09-24 2010-04-08 Ihi Corporation Method for coating sliding surface of high-temperature member, high-temperature member and electrode for electro-discharge surface treatment
US9187831B2 (en) 2002-09-24 2015-11-17 Ishikawajima-Harima Heavy Industries Co., Ltd. Method for coating sliding surface of high-temperature member, high-temperature member and electrode for electro-discharge surface treatment
US9284647B2 (en) * 2002-09-24 2016-03-15 Mitsubishi Denki Kabushiki Kaisha Method for coating sliding surface of high-temperature member, high-temperature member and electrode for electro-discharge surface treatment
US20100124490A1 (en) * 2002-10-09 2010-05-20 Ihi Corporation Rotating member and method for coating the same

Also Published As

Publication number Publication date
GB1415186A (en) 1975-11-26
DE2258280A1 (de) 1973-06-07
FR2164285A5 (de) 1973-07-27
IT973829B (it) 1974-06-10
JPS4861339A (de) 1973-08-28
DE2258280B2 (de) 1975-09-25
JPS5310534B2 (de) 1978-04-14

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