US3567640A - Quench oil composition and method of use - Google Patents

Quench oil composition and method of use Download PDF

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US3567640A
US3567640A US20475A US3567640DA US3567640A US 3567640 A US3567640 A US 3567640A US 20475 A US20475 A US 20475A US 3567640D A US3567640D A US 3567640DA US 3567640 A US3567640 A US 3567640A
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oil
composition
quench
petroleum
quench oil
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James A Stroh
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Park Chemical Co
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M1/00—Liquid compositions essentially based on mineral lubricating oils or fatty oils; Their use as lubricants
    • C10M1/08—Liquid compositions essentially based on mineral lubricating oils or fatty oils; Their use as lubricants with additives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2070/00—Specific manufacturing methods for lubricant compositions
    • C10N2070/02—Concentrating of additives

Definitions

  • An improved quenching oil composition comprised of a major portion of a petroleum oil having a viscosity within the range of about 40 to about 300 SUS (Saybolt Universal Seconds) at 100 F. and a flash point in excess of 250 F. and about 2% to about 15% by weight of a quench oil additive, which is an oil soluble petroleum resin produced from distillates of cracked petroleum stock having a melting point of at least 40 C. and an aniline point value of less than 50 C. (ASTM-D-6611-64).
  • the composition disclosed herein has led to unexpectedly good quenching oil properties and in particular the disclosed quench oil composition has unexpectedly superior high temperature stability when used for prolonged periods in quench oil baths.
  • This invention broadly relates to improved compositions which are suitable for use as quenching oils, to a method of using the composition, and to a concentrate form of the composition which concentrate is suitable for addition to quenching oils.
  • Degradation of accelerated oils is brought about by what may be termed normal breakdown.
  • the accelerator additives in a fast-rate quench oil are preferentially decomposed instead of the base oil probably due to the fact that the accelerators are attracted to the hot metal while performing their wetting action and are therefore in more intimate contact with the hot metal than is the base oil.
  • Accelerated oils are also broken down by prolonged heating at temperatures in the approximate area of 300 F. Thus in the past accelerated oils have lost their fast quenching ability due to degradation caused by heating (300 F.) and by the preferential decomposition of the accelerator additive during the quenching process.
  • Another object of this invention is to provide an improved quench oil composition which exhibits unexpectedly good resistance to degradation or deterioration during usage, and which composition exhibits excellent high temperature stability.
  • Still another object of the invention is to provide an improved concentrate form of the quench oil composition herein which can be added to a suitable petroleum base oil to form an accelerated quench oil composition.
  • the present invention comprises a composition suitable for use as a quenching oil composition comprised of: (a) a major portion of petroleum oil, having a viscosity Within the range of about 40 to about 300 SUS at F., and a flash point in excess of 250 F., and (b) about 2% to about 15% by weight of an additive comprising an oil soluble, petroleum resin produced by the homoand copolymerization of dienes and olefins of aliphatic, alicyclic, and monobenzenoid types from distillates of cracked petroleum stocks, said resin having a melting point greater than 40 C., a specific gravity greater than 0.9, and an aniline point value of less than 50 C., said composition having naphtha insolubles not in excess of 1% by volume after hours heating at 300 F.; and, the method of using said composition.
  • the present invention comprises a liquid concentrate composition suitable for addition to a quenching oil to improve the quenching properties thereof, said composition comprising: (a) a major portion of a liquid carrier oil, having a viscosity within the range of about 40 to about 300 SUS at 100 F., and a flash point in excess of 250 F., and (b) greater than 15 up to about 50% by weight of a quench oil additive comprising an oil soluble, petroleum resin produced by the homoand co-polymerization of dienes and olefins of aliphatic, alicyclic, and monobenzenoid types from distillates of cracked petroleum stocks, said resin having a melting point greater than 40 C. a specific gravity greater than 0.9, and an aniline point value of less than 50 C.
  • a quench oil additive comprising an oil soluble, petroleum resin produced by the homoand co-polymerization of dienes and olefins of aliphatic, alicyclic, and monobenzenoid types from distillates of cracked petroleum stocks
  • the present invention comprises a method of quenching heated metal comprising immersing the metals in a liquid quenching composition comprised of: (a) a major portion of a petroleum oil, having a viscosity within the range of about 40 to about 300 SUS at 100 F., and a flash point in excess of 250, and (b) about 2% to about 15% by weight of a quench oil additive comprising an oil soluble, petroleum resin produced by the homoand co-polymerization of dienes and olefins of aliphatic, alicyclic, and monobenzenoid types from distillates of cracked petroleum stocks, said resin having a melting point greater than 40 C., a specific gravity greater than 0.9, and an aniline point value of less than 50 C.
  • a liquid quenching composition comprised of: (a) a major portion of a petroleum oil, having a viscosity within the range of about 40 to about 300 SUS at 100 F., and a flash point in excess of 250, and (b) about 2%
  • the base oil used to form the quench oil should have a relatively high flash point, relatively low viscosity, be stable at high temperatures, have good hot metal wetting properties, and accept and respond to accelerator additives.
  • the base oil is a petroleum oil and more specifically stated the base oil should be a mineral oil such as a paraffinic base oil.
  • the viscosity of the base oil broadly stated should be within the range of about 40 to about 300 SUS at 100 F.; and, preferably the viscosity of the base oil should be within the range of about 70 to about 100 SUS at 100 F.
  • the flash point of the base oil broadly stated should be greater than 250 F. Cleveland Open Cup (COC) Test Method; and, preferably the flash point of the base oil should be greater than 320 F., COC.
  • a number of different base oils can be used to form the quench oil composition of this invention and the particular selection of the base oil is not critical so long as the above criteria are met.
  • the quench oil additive or accelerator which has been discovered and disclosed herein has been found to give an unexpectedly and unique quench oil composition.
  • the additive broadly stated is an oil soluble, petroleum resin produced by the homoand co-polyemrization of dienes and olefins of aliphatic, alicyclic, and monobenzenoid types from distillates of cracked petroleum Stocks.
  • the melting point of the resin additive broadly stated should be greater than 40 C.; and, preferably the melting should be within the range of about 90 to about 120 C.; and the best results using the invention have been obtained when the resin melting point is approximately 100 C.
  • the resin additive specific gravity broadly stated should be greater than about 0.9; and, preferably the specific gravity should be within the range of about 0.9 to about 1.3; and the best results have been obtained with a spe cific gravity of approximately 1.
  • the aniline point value (ASTM-D-611-64 test procedure) is also considered an important determination in describing the resin to be used and in describing the resins intended to be included within the scope of the invention.
  • the aniline point value should be less than 50 C. for the resin additive.
  • the flash point of the resin additive on a preferred basis should be approximately 480 F., COC.
  • the amount of resin additive used in the quench oil composition broadly stated should be within the range of about 2 to about 15% by weight; and, preferably within the range of about 3 to about 8% by weight.
  • a typically suitable resin for use in the quench oil composition would have the following properties:
  • COC flash point degrees F.-480 F. Acid number, max.l.0 Saponification number, max.] .0 Aniline point value-about C.
  • a liquid concentrate form of the quench oil composition disclosed herein is also contemplated within the scope of the invention.
  • the amount of resin additive used to form the liquid concentrate composition should be within the range of greater than by weight of the composition up to about 42% by weight.
  • the base oil used for the concentrated composition should generally meet the same criteria outlined above for the base oil.
  • the hot wire test is a means of evaluating the quench oil. It involves applying an electrical current to a short piece of Nichrome wire immersed in -150 ml. of the quench oil being tested. The oil itself is maintained at a temperature of 140 F. during the test. The wire is held between two brass electrodes and the current is applied to the wire by turning a rheostat, and then the amperage is read ofl? an ammeter at the point when the wire burns in half. Higher hot wire readings (amperes) indicate better heat extraction qualities and thus better quench oils.
  • the nickel ball test This test is described in US. Pat. No. 3,205,100, and the test is also fully described in a brochure published by General Motors Corporation in October 1957 entitled Process Developments-Magnetic Quench Test. Pure nickel is magnetic at temperatures below a Curie point of 670 F. and nonmagnetic above 670 F. This is the basis for the nickel ball test, in which a ball approximately 'Va inch in diameter, is heated to a predetermined temperature and then quenched into the quench oil composition being tested. A timing device is started as soon as the ball is dropped into a pivoted basket assembly, and stopped when the ball swings Over to a powerful magnet along side the beaker indicating that the temperature has passed below 670 F. The faster the quench oil the shorter the time period elapsed will be. A chromized nickel ball was used in the testing of the quench oil composition of this invention in an oil bath without agitation, and with the oil temperature being approximately room temperature.
  • Th naphtha insolubles test In this test 10 ml. of the thoroughly stirred quench oil composition being tested is transferred into a 15 ml. conical centifuge tube, and 5 ml. of naphtha is added to the tube. The sample is well shaken and centifuged ten minutes. The insolubles content in the naphtha is recorded as naphtha insolubles. The report of the test is given as volume percent naphtha insolubles at the bottom of the tube.
  • the high temperature stability test In this test a No. 3600 Labline oven was used. The oven is noncirculating and has three inch insulated walls with a useable working area of 13 x 13 x 13 inches. The oven was thermostatically controlled. One hundred grams of the quench oil composition being tested is weighed into a 250 ml. Pyrex beaker. All samples tested are placed on the same shelf and the same distance from the oven walls. The test duration can be either five days or seven days (depending upon the degree of breakdown sought or anticipated in the test), and after the test the oil is removed and allowed to cool to room temperature. To determine the stability of the oil after the test, the oil is thoroughly stirred and quickly transferred into another 250 ml. beaker.
  • the oil from this beaker is then used for a determination of the naphtha insolubles using the above described naphtha insolubles test in order to determine generally the amount of degradation and deterioration of the quench oil composition which had taken place as indicated by the residue, insolubles, etc., which comes out in the test.
  • composition suitable for use as a quenching oil composition comprised of:
  • composition of claim 1 wherein said oil viscosity is from about to about 100 SUS at 100 F.
  • composition of claim 7 wherein said resin melting point is from about to about 9.
  • composition of claim 8 wherein said resin is present from about 3% to about 8% by weight.
  • composition of claim 9 wherein said resin specific gravity is from about 0.9 to about 11.
  • composition of claim 10 wherein said resin has a flash point of about 480 F.
  • composition comprising:
  • said resin having a melting point greater than 40 C.

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

AN IMPROVED QUENCHING OIL COMPOSITION COMPRISED OF A MAJOR PORTION OF A PETROLEUM OIL HAVING A VISCOSITY WITHIN THE RANGE OF ABOUT 40 TO ABOUT 300 SUS (SAYBOLT UNIVERSAL SECONDS) AT 100*F. AND A FLASH POINT IN EXCESS OF 250*F. AND ABOUT 2% TO ABOUT 15% BY WEIGHT OF A QUENCH OIL ADDITIVE, WHICH IS AN OIL SOLUBLE PETROLEUM RESIN PRODUCED FROM DISTILLATES OF CRAKED PETROLEUM STOCK HAVING A MELTING POINT OF AT LEAST 40*C. AND AN ANILINE POINT VALUE OF LESS THAN 50*C. (ASTM-D-6611-64). THE COMPOSITION DISCLOSED HEREIN HAS LED TO UNEXPECTEDLY GOOD QUENCHING OIL PROPERTIES AND IN PARTICULAR THE DISCLOSED QUENCH OIL COMPOSITION HAS UNEXPECTEDLY SUPERIOR HIGH TEMPERATURE STABILITY WHEN USED FOR PROLONGED PERIODS IN QUENCH OIL BATHS.

Description

United States Patent 3,567,640 QUENCH OIL COMPOSITION AND METHOD OF USE James A. Stroh, Ferndale, Mich., assignor to Park Chemical Company, Detroit, Mich.
No Drawing. Continuation of abandoned application Ser. No. 701,112, Jan. 29, 1968. This application Mar. 25, 1970, Ser. No. 20,475
Int. Cl. Cm 1/00 US. Cl. 252-59 12 Claims ABSTRACT OF THE DISCLOSURE An improved quenching oil composition comprised of a major portion of a petroleum oil having a viscosity within the range of about 40 to about 300 SUS (Saybolt Universal Seconds) at 100 F. and a flash point in excess of 250 F. and about 2% to about 15% by weight of a quench oil additive, which is an oil soluble petroleum resin produced from distillates of cracked petroleum stock having a melting point of at least 40 C. and an aniline point value of less than 50 C. (ASTM-D-6611-64). The composition disclosed herein has led to unexpectedly good quenching oil properties and in particular the disclosed quench oil composition has unexpectedly superior high temperature stability when used for prolonged periods in quench oil baths.
This application is a continuation of application Ser. No. 701,112 filed Jan. 29, 1968 and now abandoned.
BACKGROUND OF THE INVENTION This invention broadly relates to improved compositions which are suitable for use as quenching oils, to a method of using the composition, and to a concentrate form of the composition which concentrate is suitable for addition to quenching oils.
The state of prior art references related to the invention as known by applicant pursuant to a preliminary search is indicated by the references identified below.
U.S. Pats. 1,818,431, 2,031,431, 2,327,383, 2,327,976, 2,327,977, 2,340,724, 2,483,725, 2,600,290, 2,799,606, 2,848,362, 2,857,301, 2,866,729, 2,910,395, 3,022,205, 3,027,315, 3,072,506, 3,205,100.
Various quenching oil compositions are well known in the art as indicated by the above group of prior art patents. To a certain limited extent, conventional oils which do not contain a quench oil accelerator additive tend to become better quenchants as they are used and this is generally considered due to partial oxidation and polymerization which takes place within the conventional oil. However it is desirable in the art to use an oil which has an accelerated quench time through the use of an additive, but even when an accelerated oil is used as a quenching composition the accelerated oil degrades or tends to become slower during usage. The accelerated quench oil composition also experiences the same oxidation and polymerization as a conventional oil and, degradation of the accelerators has a noticeable effect on the quenching rate of an accelerated quench oil composition. Degradation of accelerated oils is brought about by what may be termed normal breakdown. The accelerator additives in a fast-rate quench oil are preferentially decomposed instead of the base oil probably due to the fact that the accelerators are attracted to the hot metal while performing their wetting action and are therefore in more intimate contact with the hot metal than is the base oil. Accelerated oils are also broken down by prolonged heating at temperatures in the approximate area of 300 F. Thus in the past accelerated oils have lost their fast quenching ability due to degradation caused by heating (300 F.) and by the preferential decomposition of the accelerator additive during the quenching process.
Accordingly, it is an object of this invention to provide an improved quench oil composition and method of using the same,
Another object of this invention is to provide an improved quench oil composition which exhibits unexpectedly good resistance to degradation or deterioration during usage, and which composition exhibits excellent high temperature stability.
Still further it is an object of this invention to provide an improved quench oil composition possessing high hot wire stability after prolonged usage, and which composition possesses only a minimal amount of naphtha insolubles after prolonged usage as indicated by a high temperature stability test described hereinafter.
Still another object of the invention is to provide an improved concentrate form of the quench oil composition herein which can be added to a suitable petroleum base oil to form an accelerated quench oil composition.
Other objects, features and advantages of the present invention will become apparent from the subsequent description and the appended claims.
SUMMARY OF THE INVENTION Briefly stated, the present invention comprises a composition suitable for use as a quenching oil composition comprised of: (a) a major portion of petroleum oil, having a viscosity Within the range of about 40 to about 300 SUS at F., and a flash point in excess of 250 F., and (b) about 2% to about 15% by weight of an additive comprising an oil soluble, petroleum resin produced by the homoand copolymerization of dienes and olefins of aliphatic, alicyclic, and monobenzenoid types from distillates of cracked petroleum stocks, said resin having a melting point greater than 40 C., a specific gravity greater than 0.9, and an aniline point value of less than 50 C., said composition having naphtha insolubles not in excess of 1% by volume after hours heating at 300 F.; and, the method of using said composition.
In another aspect, briefly stated, the present invention comprises a liquid concentrate composition suitable for addition to a quenching oil to improve the quenching properties thereof, said composition comprising: (a) a major portion of a liquid carrier oil, having a viscosity within the range of about 40 to about 300 SUS at 100 F., and a flash point in excess of 250 F., and (b) greater than 15 up to about 50% by weight of a quench oil additive comprising an oil soluble, petroleum resin produced by the homoand co-polymerization of dienes and olefins of aliphatic, alicyclic, and monobenzenoid types from distillates of cracked petroleum stocks, said resin having a melting point greater than 40 C. a specific gravity greater than 0.9, and an aniline point value of less than 50 C.
In its method aspect, briefly stated, the present invention comprises a method of quenching heated metal comprising immersing the metals in a liquid quenching composition comprised of: (a) a major portion of a petroleum oil, having a viscosity within the range of about 40 to about 300 SUS at 100 F., and a flash point in excess of 250, and (b) about 2% to about 15% by weight of a quench oil additive comprising an oil soluble, petroleum resin produced by the homoand co-polymerization of dienes and olefins of aliphatic, alicyclic, and monobenzenoid types from distillates of cracked petroleum stocks, said resin having a melting point greater than 40 C., a specific gravity greater than 0.9, and an aniline point value of less than 50 C.
3 DESCRIPTION OF PREFERRED EMBODIMENTS The base oil used to form the quench oil should have a relatively high flash point, relatively low viscosity, be stable at high temperatures, have good hot metal wetting properties, and accept and respond to accelerator additives. Broadly, the base oil is a petroleum oil and more specifically stated the base oil should be a mineral oil such as a paraffinic base oil.
The viscosity of the base oil broadly stated should be within the range of about 40 to about 300 SUS at 100 F.; and, preferably the viscosity of the base oil should be within the range of about 70 to about 100 SUS at 100 F.
The flash point of the base oil broadly stated should be greater than 250 F. Cleveland Open Cup (COC) Test Method; and, preferably the flash point of the base oil should be greater than 320 F., COC.
A number of different base oils can be used to form the quench oil composition of this invention and the particular selection of the base oil is not critical so long as the above criteria are met.
The quench oil additive or accelerator which has been discovered and disclosed herein has been found to give an unexpectedly and unique quench oil composition.
The additive broadly stated is an oil soluble, petroleum resin produced by the homoand co-polyemrization of dienes and olefins of aliphatic, alicyclic, and monobenzenoid types from distillates of cracked petroleum Stocks.
The melting point of the resin additive broadly stated should be greater than 40 C.; and, preferably the melting should be within the range of about 90 to about 120 C.; and the best results using the invention have been obtained when the resin melting point is approximately 100 C.
The resin additive specific gravity broadly stated should be greater than about 0.9; and, preferably the specific gravity should be within the range of about 0.9 to about 1.3; and the best results have been obtained with a spe cific gravity of approximately 1.
The aniline point value (ASTM-D-611-64 test procedure) is also considered an important determination in describing the resin to be used and in describing the resins intended to be included within the scope of the invention. The aniline point value should be less than 50 C. for the resin additive.
The flash point of the resin additive on a preferred basis should be approximately 480 F., COC.
The amount of resin additive used in the quench oil composition broadly stated should be within the range of about 2 to about 15% by weight; and, preferably within the range of about 3 to about 8% by weight.
TABLE 1 A typically suitable resin for use in the quench oil composition would have the following properties:
Color, coal tar, max.-1%3
Melting point-100 C.
Specific gravityl.06
Bromine number elec.10.3
Iodine number (corrected)l6.4 Refractive index, 25 C.l.60
COC flash point, degrees F.-480 F. Acid number, max.l.0 Saponification number, max.] .0 Aniline point value-about C.
A liquid concentrate form of the quench oil composition disclosed herein is also contemplated within the scope of the invention.
The amount of resin additive used to form the liquid concentrate composition should be within the range of greater than by weight of the composition up to about 42% by weight. The base oil used for the concentrated composition should generally meet the same criteria outlined above for the base oil.
Tests have shown that the quench oil composition which has been discovered is an unexpectedly good quench oil composition.
The hot wire test: This test is a means of evaluating the quench oil. It involves applying an electrical current to a short piece of Nichrome wire immersed in -150 ml. of the quench oil being tested. The oil itself is maintained at a temperature of 140 F. during the test. The wire is held between two brass electrodes and the current is applied to the wire by turning a rheostat, and then the amperage is read ofl? an ammeter at the point when the wire burns in half. Higher hot wire readings (amperes) indicate better heat extraction qualities and thus better quench oils.
The nickel ball test: This test is described in US. Pat. No. 3,205,100, and the test is also fully described in a brochure published by General Motors Corporation in October 1957 entitled Process Developments-Magnetic Quench Test. Pure nickel is magnetic at temperatures below a Curie point of 670 F. and nonmagnetic above 670 F. This is the basis for the nickel ball test, in which a ball approximately 'Va inch in diameter, is heated to a predetermined temperature and then quenched into the quench oil composition being tested. A timing device is started as soon as the ball is dropped into a pivoted basket assembly, and stopped when the ball swings Over to a powerful magnet along side the beaker indicating that the temperature has passed below 670 F. The faster the quench oil the shorter the time period elapsed will be. A chromized nickel ball was used in the testing of the quench oil composition of this invention in an oil bath without agitation, and with the oil temperature being approximately room temperature.
Th naphtha insolubles test: In this test 10 ml. of the thoroughly stirred quench oil composition being tested is transferred into a 15 ml. conical centifuge tube, and 5 ml. of naphtha is added to the tube. The sample is well shaken and centifuged ten minutes. The insolubles content in the naphtha is recorded as naphtha insolubles. The report of the test is given as volume percent naphtha insolubles at the bottom of the tube.
The high temperature stability test: In this test a No. 3600 Labline oven was used. The oven is noncirculating and has three inch insulated walls with a useable working area of 13 x 13 x 13 inches. The oven was thermostatically controlled. One hundred grams of the quench oil composition being tested is weighed into a 250 ml. Pyrex beaker. All samples tested are placed on the same shelf and the same distance from the oven walls. The test duration can be either five days or seven days (depending upon the degree of breakdown sought or anticipated in the test), and after the test the oil is removed and allowed to cool to room temperature. To determine the stability of the oil after the test, the oil is thoroughly stirred and quickly transferred into another 250 ml. beaker. The oil from this beaker is then used for a determination of the naphtha insolubles using the above described naphtha insolubles test in order to determine generally the amount of degradation and deterioration of the quench oil composition which had taken place as indicated by the residue, insolubles, etc., which comes out in the test.
The following test results indicate the unexpectedly good properties of the quench oil composition herein.
TAB LE 2.TEST RESULTS TABLE 3.NICKEL BALL TEST RESULTS Quenching speed in seconds of oil composition (1) Parafiin oil (70 SUS at 100 F.) 27 (2) Paraifin oil (70 SUS) including 4.2 wt. percent resin additive of Table 1 above 16 In order to further illustrate the invention, the following examples are provided. It is to be understood, however, that the examples are included for illustrative purposes and are not intended to be limiting of the scope of the invention as set forth in the subjoined claims.
EXAMPLE 1 Percent wt. 70 SUS paraifin oil 95.8 Resin of Table 1 4.2
EXAMPLES 2 Hot wire test (amperes) (2a) 70 SUS parafim oil (Fleet-wing Corp.) including 4% wt.
While it will be apparent that the preferred embodiments of the invention disclosed are well calculated to fulfill the objects above stated, it will be appreciated that the invention is susceptible to modification, variation and change without departing from the proper scope or fair meaning of the subjoined claims.
What is claimed is:
1. A composition suitable for use as a quenching oil composition comprised of:
(a) a major portion of substantially paraflinic base petroleum oil, having a viscosity within the range of about 40 to about 300 SUS at 100 F., and a flash point in excess of 250 F., and
(b) about 2% to about 15% by weight of an oil soluble, petroleum resin quench oil additive produced during or subsequent to cracking of a petroleum fraction and being obtained by the homoand co-polymerization of aliphatic, alicyclic, and mono-benzenoid olefins and dienes contained in distillates of cracked petroleum stocks, said resin having a melting point greater than 40 C., a specific gravity greater than 0.9, and an aniline point value of less than 50 C., said composition having naphtha insolubles not in excess of 1% by volume after 120 hours heating at 300 F. 2. The composition of claim 1 wherein said resin melting point is from about 40 to about 3. The composition of claim 2 wherein said resin specific gravity is from about 0.9 to about 4. The composition of claim 3 wherein said resin melting point is from about 90 to about 5. The composition of claim 4 wherein said resin has a flash point of about 480 F.,
a specific gravity of about 1, and
a melting point of about 100 C.
6. The composition of claim 1 wherein said oil viscosity is from about to about 100 SUS at 100 F.
7. The composition of claim 6 wherein said oil flash point is in excess of 320 F.
8. The composition of claim 7 wherein said resin melting point is from about to about 9. The composition of claim 8 wherein said resin is present from about 3% to about 8% by weight.
10. The composition of claim 9 wherein said resin specific gravity is from about 0.9 to about 11. The composition of claim 10 wherein said resin has a flash point of about 480 F.,
a specific gravity of about 1, and
a melting point of about C.
12. A liquid concentrate composition suitable for addition to a quenching oil to improve the quenching properties thereof,
said composition comprising:
(a) a major portion of a liquid substantially paraflinic base carrier oil, having a viscosity within the range of about 40 to about 300 SUS at 100 F., and a flash point in excess of 250 F., and
(b) greater than 15% up to about 50% by weight of an oil soluble, petroleum resin quench oil additive produced during or subsequent to cracking of a petroleum fraction and being obtained y the homoand co-polymerization of aliphatic,
alicyclic, and mono-benzenoid olefins and dienes contained in distillates of cracked petroleum stocks,
said resin having a melting point greater than 40 C.,
a specific gravity greater than 0.9, and an aniline point value of less than 50 C.
References Cited UNITED STATES PATENTS 2,031,431 2/ 1936 Shepherd 14818 2,340,724 2/1944 Horst et al 148-29X 3,312,621 4/ 1967 Brownawell et al 252-59 DANIEL E. WYMAN, Primary Examiner W. H. CANNON, Assistant Examiner US. Cl. X.R.
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