US3217834A - Process of lubrication for metal frictional surfaces - Google Patents

Process of lubrication for metal frictional surfaces Download PDF

Info

Publication number
US3217834A
US3217834A US287864A US28786463A US3217834A US 3217834 A US3217834 A US 3217834A US 287864 A US287864 A US 287864A US 28786463 A US28786463 A US 28786463A US 3217834 A US3217834 A US 3217834A
Authority
US
United States
Prior art keywords
frictional surfaces
electric current
lubrication
lubricating oil
metal
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
US287864A
Other languages
English (en)
Inventor
Nakamura Kenichi
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3217834A publication Critical patent/US3217834A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F16N—LUBRICATING
    • F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/32—Lubrication of metal being extruded or of dies, or the like, e.g. physical state of lubricant, location where lubricant is applied
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C9/00—Cooling, heating or lubricating drawing material
    • 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
    • F16N—LUBRICATING
    • F16N17/00—Lubrication of machines or apparatus working under extreme conditions

Definitions

  • the present invention relates to a process of lubrication for metal frictional surfaces wherein performance characteristics of lubricants are considerably improved by the flow of an electric current between the frictional surfaces, so as to reduce the friction therebetween and to increase the resistance against abrasion of the frictional surfaces.
  • the mixture of lubricating oil and additives is used as a lubricant on the frictional surfaces, and a film of metallic compounds having good lubricating performance is formed by the electric current whereby, remarkably, the wear resisting properties of the frictional surfaces are caused to increase.
  • additives organic phosphite compounds or other organic compounds are effectively used.
  • the amount of additives is effective below 5%, depending upon the type of the additives and base oils used.
  • D.C. direct current
  • alternating current may also be applied.
  • An adequate value of the electric current to be practically applied is dependent upon the surface pressure, the sliding speed, the finished condition, the dimensional area of the frictional surfaces, as well as the type of frictional metals and additives.
  • the values of the electric current are, in general, a few volts at ll amperes, since a large electric power is not necessary. Consequently, expenses required for the additives and the electric power consumption are considerably reduced in accordance with the present invention.
  • the present lubricating process is applicable to various sliding surfaces, such as to a unit of a shaft and a bearing, an engaging surface of a worm gear and a worm wheel, etc. and has the advantage of raising the abrasion resistance of these rotating surfaces.
  • This process is also applicable to a wide range of processes for metal-working lubrication, such as wire drawing, pipe drawing, thread rolling, extrusion and blanking, and serves the purpose of increasing the abrasion resistance of tools and of decreasing the working power.
  • FIGURE 1 is a front elevation partly in section of a bearing for practicing the process of the present invention
  • FIG. 2 is a front elevation partly in section of a wire drawing apparatus for practicing the present invention
  • FIG. 3A is a front elevation of a construction of Timken type abrasion testing machine used in a fundamental abrasion experiment in the present invention
  • FIG. 3B is a side view of the Timken type abrasion testing machine
  • FIG. 4 is a diagram of one example of experimental results effected by using a Timken type abrasion testing machine.
  • FIG. 5 is a diagram of one example of experimental results obtained by an application of the method to wire drawing.
  • FIG. 1 shows one example of the application of the process of the present invention to a bearing comprising bearing housings 1 and 2, a shaft 3 and a bearing member 4.
  • An oil ring 5 is inserted and a lubricant 6 is fed into the bearing housings 1 and 2.
  • Electric current flows to the bearing housing 1 by means of a lead wire 7 connected with the bearing housing 1 and then passes. to a lead wire 8 connected with hearing housing 2 through the bearing member 4, the friction surfaces and the shaft 3.
  • FIG. 2 shows one example of the application to a wire drawing machine, wherein a die 9 is supported by a die holder 10 and includes a winding drum 11 of a wire drawing machine. Rollers 12, 13 and 14 are fixed to a lubricant box 15. The latter is mounted on a frame 20 of the wire drawing machine insulated electrically by an insulator 16. A wire 17 passes through the lubricant box 15 by using the rollers 12, 13 and 14, so as to be covered on its surface with lubricating oil. The wire 17 then passes through the die 9, to be wound on the winding drum 11.
  • the electric current flows from a lead wire 18 to a wire 17, and passes through the rollers 12, 13 and 14 fixed on the lubricant box 15 and then reaches the lead wire 19 through the friction surfaces between the wire 17 and the die 9.
  • FIGS. 3A and 3B show a partial schematic diagram of a Timken type abrasion testing machine used in the fundamental abrasion test. This testing machine has been equipped with a torque pick-up using a strain gauge.
  • FIGS. 3A and 3B disclose specimens 21 and 22, one being a roller 31 (10 mm. (15 x 10 mm.) and the other being a ring 22 (40 mm.
  • the ring 22 rotates while being dipped into a lubricant in an oil tank 23.
  • the roller 21 is attached to a lever 24 and the rotating ring 22 is subjected to a load by a weight 25 suspended at one end of the lever 24.
  • the electric current flows to the frictional surfaces between the roller 21 and the ring 22 through contact points 26 and 27.
  • FIG. 4 discloses a diagram of one example of experimental results by using the testing machine set forth above. This experiment has been carried out with a sliding speed of 28.9 m./min. and the amount of wear of the roller has been measured after a sliding distance of 433 m. In the diagram, the ordinate shows a volume of wear of the roller and the abscissa shows the load.
  • the electric current used was a full-wave rectified D.C.
  • a motor oil to which 1% of organic phosphite compound has been added, was used.
  • a high carbon chromium bearing steel was used as to the roller and ring material applied in the experiment. It has been clearly observed that the wear was definitely reduced by the flow of an electric current. The coefficient of friction was also reduced more or less (0.01).
  • FIG. 5 discloses a diagram of one example of experimental results obtained by the application of this method to wire drawing.
  • the current which was used was rectified D.C. in the same manner as in the above example.
  • This piano wire was drawn through a tungsten carbide die of a half angle 5 to a diameter of 2.40 mm. (reduction of area 18%).
  • a process of lubrication for metal frictional surfaces comprising the steps of adding up to about 5% of organic phosphite compounds to lubricating oil applied to frictional surfaces, and

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lubricants (AREA)
US287864A 1962-06-22 1963-06-14 Process of lubrication for metal frictional surfaces Expired - Lifetime US3217834A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2554362A JPS3824473B1 (enrdf_load_stackoverflow) 1962-06-22 1962-06-22

Publications (1)

Publication Number Publication Date
US3217834A true US3217834A (en) 1965-11-16

Family

ID=12168888

Family Applications (1)

Application Number Title Priority Date Filing Date
US287864A Expired - Lifetime US3217834A (en) 1962-06-22 1963-06-14 Process of lubrication for metal frictional surfaces

Country Status (3)

Country Link
US (1) US3217834A (enrdf_load_stackoverflow)
JP (1) JPS3824473B1 (enrdf_load_stackoverflow)
GB (1) GB977577A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3507775A (en) * 1968-06-28 1970-04-21 Du Pont Lubricant producing system
US3513084A (en) * 1968-06-28 1970-05-19 Du Pont Lubricant producing system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2002366020A1 (en) 2001-11-19 2003-06-10 Naoto Yokoo Method for reforming lubricating oil and lubricating oil
RU2295659C1 (ru) * 2005-09-26 2007-03-20 Государственное образовательное учреждение высшего профессионального образования "Южно-Российский государственный технический университет (Новочеркасский политехнический институт)" Подшипник скольжения
RU2301361C1 (ru) * 2005-10-05 2007-06-20 Общество с ограниченной ответственностью Научно-производственное объединение "Мотор" Быстроходный подпятник

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2661825A (en) * 1949-01-07 1953-12-08 Wefco Inc High fidelity slip control
US3052316A (en) * 1960-01-08 1962-09-04 Gen Motors Corp Lubricant additive
US3072444A (en) * 1960-12-09 1963-01-08 Pure Oil Co Method and apparatus for lubricating bearing journal assemblies

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2661825A (en) * 1949-01-07 1953-12-08 Wefco Inc High fidelity slip control
US3052316A (en) * 1960-01-08 1962-09-04 Gen Motors Corp Lubricant additive
US3072444A (en) * 1960-12-09 1963-01-08 Pure Oil Co Method and apparatus for lubricating bearing journal assemblies

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3507775A (en) * 1968-06-28 1970-04-21 Du Pont Lubricant producing system
US3513084A (en) * 1968-06-28 1970-05-19 Du Pont Lubricant producing system

Also Published As

Publication number Publication date
JPS3824473B1 (enrdf_load_stackoverflow) 1963-11-16
GB977577A (en) 1964-12-09

Similar Documents

Publication Publication Date Title
US2222251A (en) Method of making porous metal structures and bearings
Whitton et al. Surface friction and lubrication in cold strip rolling
US3217834A (en) Process of lubrication for metal frictional surfaces
Bello et al. Surface topography and lubrication in sheet-metal forming
US3297571A (en) Lubricant composition and articles and process of preparing and using the same
US2893793A (en) Oil-impregnated bearing having molybdenum sulfide coating and method of making same
US20020019321A1 (en) Metalworking lubrication
CA2024169C (en) High-conductivity copper-clad steel trolley wire and a method for manufacturing the same
Prashad Investigation of damaged rolling-element bearings and deterioration of lubricants under the influence of electric fields
Hansen et al. Two new methods for testing lubricants for cold forging
US3127224A (en) Bearing
CA1162596A (en) Method and apparatus for electrically controlling lubrication in lubricated plastic-working of metallic material
US2555497A (en) Process of manufacturing bearings
US6245718B1 (en) Composite material for antifriction workpieces
Davies Influence of Roughness and Oxidation on Wear of Lubricated Sliding Metal Surfaces
GB2090287A (en) Metal oxyquinolinate containing lubricant composition
Montgomery Friction and wear of some bronzes under lubricated reciprocating sliding
Nee et al. Bore finishing—the ballizing process
OsAKADA et al. The effect of deformation speed on friction and lubrication in cold forging
US2379478A (en) Bearing unit and lubricating material therefor
EA001309B1 (ru) Способ металлообработки с применением смазки
JPH0551588A (ja) 含油軸受の潤滑方法および含油軸受ならびに含油軸受用潤滑油
Fuller 2D coefficients of friction
ENDo et al. Wear behaviours of metals under lubricated condition and the effect of small electric potential
Bay et al. Simulation of friction and lubrication in cold forging