KR20110059308A - A mixture of manual transmission fluid - Google Patents
A mixture of manual transmission fluid Download PDFInfo
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- KR20110059308A KR20110059308A KR1020090116003A KR20090116003A KR20110059308A KR 20110059308 A KR20110059308 A KR 20110059308A KR 1020090116003 A KR1020090116003 A KR 1020090116003A KR 20090116003 A KR20090116003 A KR 20090116003A KR 20110059308 A KR20110059308 A KR 20110059308A
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- manual transmission
- viscosity
- base oil
- oil composition
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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
- C10M119/00—Lubricating compositions characterised by the thickener being a macromolecular compound
- C10M119/04—Lubricating compositions characterised by the thickener being a macromolecular compound containing oxygen
- C10M119/06—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M119/12—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate
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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
- C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
- C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
- C10M133/16—Amides; Imides
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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
- C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
- C10M135/08—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium containing a sulfur-to-oxygen bond
- C10M135/10—Sulfonic acids or derivatives thereof
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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
- C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
- C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
- C10M137/04—Phosphate esters
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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
- C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
- C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
- C10M137/04—Phosphate esters
- C10M137/10—Thio derivatives
-
- 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
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
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- 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
- C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
Abstract
Description
본 발명은 수동 변속 기유 조성물에 관한 것이다.The present invention relates to a manual transmission base oil composition.
일반적으로, 변속기는 클러치와 추진축 또는 클러치와 종감속기어장치 사이에 설치되어 엔진의 동력을 자동차의 주행상태에 알맞도록 회전력과 속도를 바꾸어 구동바퀴에 전달하는 장치를 말한다. 수동변속기는 동력을 단속하기 위하여 필요한 클러치 조작과 주행조건에 따라 기어변속을 통해 엔진으로부터 전달되는 회전속도 및 회전력을 변화시켜 구동륜에 전달하여 운전자가 요구하는 속도와 토크를 얻게 된다. In general, the transmission is a device that is installed between the clutch and the propulsion shaft or the clutch and the reduction gear device to transmit the power of the engine to the driving wheel by changing the rotational force and speed to suit the driving state of the vehicle. The manual transmission changes the rotational speed and rotational force transmitted from the engine through gear shifting according to the clutch operation and driving conditions necessary to control the power and transmits it to the driving wheels to obtain the speed and torque required by the driver.
차량용 수동변속기는 운전자의 변속조작을 원할히할 수 있도록 싱크로나이저 변속기구를 갖추고 있다. 싱크로나이저 변속기구는 변속시의 클러치기어와 단기어의 속도를 맞추어 부드러운 변속조작이 이루어지도록 하는 기구이다. 싱크로나이저 변속기구는 기어치합을 이루는 슬리브가 싱크로메시와 단기어의 경사면의 접촉으로 클러치기어와 단기어의 속도 동기를 이루며 결합한다. 이때, 오일 점도가 과도하게 상승하면 접촉 시 마찰에 의한 동기를 방해하여 변속감이 떨어진다. 특히, 오일의 점도는 온도에 따라 크게 변하여 저온에서의 점도 유지는 MTF(manual transmission fluid)의 매우 중요한 요구 특성 중의 하나이다. 그러나, 점도 유지를 위한 낮은 점도의 MTF를 사용할 경우 하중을 받는 기어치면의 윤활유막 형성이 어려워 기어 내구성이 불리해지는 문제점이 있다.The vehicle manual transmission is equipped with a synchronizer transmission mechanism for smooth shifting of the driver. The synchronizer shift mechanism is a mechanism for smooth shift operation by matching the speed of the clutch gear and the short term gear during shifting. In the synchronizer transmission mechanism, a gear forming sleeve is engaged in synchronism with the clutch gear and the short term by synchronizing the inclined surface of the synchronic mesh with the short term. At this time, when the oil viscosity rises excessively, the contact feeling is hindered by friction during contact and the feeling of shifting falls. In particular, the viscosity of the oil varies greatly with temperature so that the maintenance of viscosity at low temperatures is one of the very important requirements of the manual transmission fluid (MTF). However, when using a low viscosity MTF for maintaining the viscosity it is difficult to form a lubricant film on the gear surface under load, there is a problem in that the durability of the gear.
이에, 본 발명자는 상기와 같은 문제점을 해결하고자 끊임없이 연구한 결과, 기유에 점도지수 향상제(viscosity modifier)로 분자량이 20,000 내지 200,000의 변성된 알킬메타크릴레이트, 내마모제로 디티오인산아연, 금속계 청정분산제로 전염기가가 300 이상인 칼슘 술포네이트, 인산에스테르계 마찰조정제, 비스숙신이미드형 무회계 분산제 및 기타첨가제가 전단안정성, 마찰특성, 열안정성, 산화안정성, 변속성이 향상되고 광범위한 온도 범위에서 사용할 수 있는 수동 변속 기유 조성물을 개발함으로써 본 발명을 완성하게 되었다. Therefore, the present inventors constantly research to solve the above problems, modified molecular weight of alkyl methacrylate of 20,000 to 200,000 as a viscosity modifier (viscosity modifier) in base oil, zinc dithiophosphate as a wear-resistant agent, metal-based clean dispersant Calcium sulfonates, phosphate ester friction modifiers, bissuccinimide type ashless dispersants and other additives having a total base value of 300 or more have improved shear stability, friction characteristics, thermal stability, oxidation stability, shiftability, and can be used in a wide range of temperatures. The present invention has been completed by developing a manual transmission base oil composition.
따라서, 본 발명은 전단안정성, 마찰특성, 열안정성, 산화안정성, 변속성이 향상되고 광범위한 온도 범위에서 사용할 수 있는 수동 변속 기유 조성물을 제공하는데 그 목적이 있다.Accordingly, an object of the present invention is to provide a manual transmission base oil composition which is improved in shear stability, friction property, thermal stability, oxidative stability, shiftability, and can be used in a wide temperature range.
본 발명은 The present invention
기유(base oil) 60 ~ 90 중량%,Base oil 60 to 90% by weight,
점도지수 향상제(viscosity modifier)로 분자량이 20,000 내지 200,000의 변성된 알킬메타크릴레이트 5 ~ 20 중량%,5-20% by weight of modified alkyl methacrylate having a molecular weight of 20,000 to 200,000 as a viscosity modifier,
내마모제로 디티오인산아연 1 ~ 5 중량%, 1 to 5% by weight of zinc dithiophosphate as an antiwear agent,
금속계 청정 분산제로 전염기가가 300 이상인 칼슘 술포네이트 0.05 ~ 5 중량%, 0.05 to 5% by weight of calcium sulfonate with an infectious value of 300 or more as a metallic clean dispersant,
마찰 조정제로 인산에스테르 1 ~ 5 중량%, 및1 to 5% by weight of phosphate ester as a friction modifier, and
무회계 분산제로 비스숙신이미드 0.5 ~ 5 중량% 0.5 to 5% by weight of bissuccinimide as an ashless dispersant
를 포함하는 수동 변속 기유 조성물을 그 특징으로 한다.It features a manual transmission base oil composition comprising a.
본 발명에 따른 수동 변속 기유 조성물은 수동변속기의 싱크로나이저의 마찰특성 및 내하중성을 만족하며, 점도유지를 위해 사용하는 고가의 PAO 합성유를 대체할 수 있으리라 기대된다.The manual transmission base oil composition according to the present invention satisfies the friction characteristics and the load resistance of the synchronizer of the manual transmission, and is expected to be able to replace the expensive PAO synthetic oil used for viscosity maintenance.
앞서 소개한 본 발명의 수동 변속 기유 조성물에 대하여 설명을 하면 아래와 같다.Referring to the manual transmission base oil composition of the present invention introduced above as follows.
본 발명은 기유에 점도지수 향상제(viscosity modifier)로 분자량이 20,000 내지 200,000의 변성된 알킬메타크릴레이트, 내마모제로 디티오인산아연, 금속계 청정분산제로 전염기가가 300 이상인 칼슘 술포네이트, 인산에스테르계 마찰조정제, 비스숙신이미드형 무회계 분산제 및 기타첨가제가 특정 함량으로 함유되어 전단안정성, 마찰특성, 열안정성, 산화안정성, 변속성이 향상되고 광범위한 온도 범위에서 사용할 수 있는 수동 변속 기유 조성물에 관한 것이다.The present invention is a modified alkyl methacrylate having a molecular weight of 20,000 to 200,000 as a viscosity modifier in base oil, zinc dithiophosphate as an antiwear agent, calcium sulfonate having a total base value of 300 or more as a metal-based clean dispersant, phosphate ester friction The present invention relates to a manual transmission base oil composition containing a modifier, a bissuccinimide type ashless dispersant, and other additives in a specific content, thereby improving shear stability, friction properties, thermal stability, oxidation stability, and shiftability, and being used in a wide temperature range.
이러한 본 발명의 조성물질 각각에 대하여 더욱 상세하게 설명을 하겠다.Each of the compositions of the present invention will be described in more detail.
우선, 본 발명의 조성물질 중 하나인 상기 기유는 100 ℃에서 평균 동점도 3 ~ 10 cSt(센티스톡)이고 점도지수가 120 이상(120 ~ 180)인 고도로 정제된 기유 또는 합성유를 사용하는 것이 바람직하다. 이때, 상기 기유의 동점도가 3 cSt 미만이면 고온 조건하에서 증발량이 과대하여 오일 사용량을 증대시키는 문제가 있고, 10 cSt 초과 시 저온에서의 점도 증가가 심해 저온에서 시동성 저하와 연비가 나빠지는 문제점이 발생하는 바, 상기 범위 내의 동점도를 갖는 것을 사용하는 것이 좋다. 이의 사용량은 수동 변속 기유 조성물 전체 중량에 대하여 60 ~ 90 중량%가 좋다. First of all, the base oil, which is one of the compositional compositions of the present invention, preferably uses highly refined base oil or synthetic oil having an average kinematic viscosity of 3 to 10 cSt (centistoke) and a viscosity index of 120 or more (120 to 180) at 100 ° C. . At this time, if the kinematic viscosity of the base oil is less than 3 cSt, there is a problem of increasing the oil consumption due to excessive amount of evaporation under high temperature conditions. It is good to use what has a kinematic viscosity within the said range. Its usage amount is 60 to 90% by weight relative to the total weight of the manual transmission base oil composition.
다음으로 본 발명의 조성물질 중 하나인 상기 디티오인산아연은 본 발명에 있어서 내마모제 역할을 수행하며, 전체 조성물 중량에 대하여 1 ~ 5 중량%를 사용하며 1 중량% 미만인 경우 기어 및 싱크로나이저 링이 과다하게 마모되고, 5 중량% 초과시 정마찰계수가 높아지는 문제가 발생하므로 상기 범위 내에서 사용하는 것이 좋다.Next, the zinc dithiophosphate, which is one of the compositions of the present invention, serves as an anti-wear agent in the present invention, and the gear and synchronizer ring is less than 1% by weight based on 1 to 5% by weight based on the total weight of the composition. Excessive wear, and the problem that the coefficient of static friction increases when it exceeds 5% by weight is good to use within the above range.
또한, 상기 금속계 청정분산제로는 전염기가가 300 이상인 칼슘 술포네이트가 바람직하다. 상기 청정분산제는 본 발명의 디젤 엔진오일 조성물 전체 중량에 대하여 0.05 ~ 5 중량%를 사용하는 것이 좋으며, 0.05 중량% 미만으로 사용시 정마찰계수가 높아지고, 5 중량% 초과하여 사용시 산화안정성 및 내마모성이 저하되는 문제가 발생한다.As the metal-based clean dispersant, calcium sulfonate having a total salt value of 300 or more is preferable. The clean dispersant may use 0.05 to 5% by weight based on the total weight of the diesel engine oil composition of the present invention, the static friction coefficient is increased when using less than 0.05% by weight, the oxidation stability and wear resistance when using more than 5% by weight Problem occurs.
또한, 상기 점도지수 향상제는 본 발명에 있어서, 점도지수 향상과 저온에서의 유동성 증대 효과를 부여하는 역할을 수행하며, 알킬메타크릴레이트의 변성물로 분자량이 20,000 내지 200,000인 것을 사용하는 것이 바람직하며, 5 ~ 20 중량% 사용되는 것이 바람직한데, 5 중량% 미만이면 상온 및 고온에서 적절히 점도를 높이지 못하며 저온에서는 과도한 점도 상승을 유발하고, 20 중량% 초과하면 내구 진행 시 전단에 의한 점도 저하를 유발하여 내구성 떨어지는 문제가 발생한다.In addition, the viscosity index improver in the present invention, serves to improve the viscosity index and increase the fluidity at low temperatures, it is preferable to use a molecular weight of 20,000 to 200,000 as a modified product of alkyl methacrylate. It is preferable to use 5 to 20% by weight, but if it is less than 5% by weight, it will not increase the viscosity properly at room temperature and high temperature, and it will cause excessive viscosity increase at low temperature, and if it exceeds 20% by weight, the viscosity decrease by shear during durability Causing the problem of inferior durability.
알킬메타크릴레이트 변성물은 최소한 4개(4 ~ 6개)의 고분자 사슬을 갖고, 그 고분자 사슬은 C12~C15 알킬메타크릴레이트 60 ~ 80%를 포함하고, 2-에틸헥실메타크릴레이트 를 20 ~ 40% 포함한다. Alkyl methacrylate modifications have at least four (4 to 6) polymer chains, the polymer chains containing 60 to 80% of C12 to C15 alkyl methacrylates and 20 to 2-ethylhexyl methacrylate. Contains ~ 40%.
또한, 마찰조정제로 인산에스테르를 1 ~ 5 중량% 사용되는데, 클러치의 동마찰계수를 증가시켜 변속 충격을 완화시켜 결과적으로 변속성을 향상시키는 작용을 한다. In addition, 1 to 5% by weight of phosphate ester is used as a friction modifier, thereby increasing the dynamic friction coefficient of the clutch to mitigate shift shocks, and consequently, improves shiftability.
또한, 무회계 분산제로 비스숙신이미드를 전체 조성물에 대하여 0.5 ~ 5 중량% 사용하는데, 이때 0.5 중량% 미만으로 사용하면 동금속계 마찰계수가 낮아지는 문제가 있고, 5 중량% 초과하면 마찰계수가 증가하여 내마모성이 불리해지는 문제가 있다.In addition, bissuccinimide is used as the ashless dispersant in an amount of 0.5 to 5% by weight based on the total composition. When the amount is less than 0.5% by weight, the friction coefficient of the copper metal is lowered. There is a problem that wear resistance is disadvantageous.
본 발명의 조성물은 상기 성분들 외에도 당 분야에서 사용하는 마찰조정제, 유동성향상제, 소포제 및 녹부식방지제 중에서 선택된 1종 이상의 첨가제를 추가로 포함시킬 수 있다. In addition to the above components, the composition of the present invention may further include at least one additive selected from a friction modifier, a flow improver, an antifoaming agent, and an anticorrosion agent used in the art.
이하에서는 본 발명을 실시예에 의거하여 더욱 자세하게 설명을 하겠다. 그러나, 본 발명의 권리범위가 하기 실시예에 의하여 한정되는 것은 아니다.Hereinafter, the present invention will be described in more detail based on examples. However, the scope of the present invention is not limited by the following examples.
실시예Example 1 및 1 and 비교예Comparative example 1 ~ 4 : 수동 변속 1 to 4: manual shift 기유Base oil 조성물의 제조 Preparation of the composition
하기 표 1과 같은 조성을 60 ~ 80 ℃ 조건 하에서 교반 혼합하여 수동 변속 기유 조성물을 제조하였다.To prepare a manual transmission base oil composition by stirring and mixing the composition shown in Table 1 under 60 ~ 80 ℃ conditions.
[표 1]TABLE 1
실험예Experimental Example 1: 점도 및 전단안정성 확인 1: Check viscosity and shear stability
상기 실시예 1 및 비교예 1 ~ 3의 수동변속기유 조성물을 사용하여 점도는 ASTM D 445(Test Method for Kinematic Viscosity of Transparent and Opaque Liquids)에 따라 시험하였다. Using the manual transmission oil composition of Example 1 and Comparative Examples 1-3, the viscosity was tested according to ASTM D 445 (Test Method for Kinematic Viscosity of Transparent and Opaque Liquids).
전단안정성 시험은 CEC L-45-A99(Viscosity Shear Stability of Transmission Lubricants(Taper Roller Bearing Rig))에 따라 48시간 시험하여 100 ℃ 동점도를 측정하여 점도변화를 비율로 표시하였다. Shear stability test was performed for 48 hours according to CEC L-45-A99 (Viscosity Shear Stability of Transmission Lubricants (Taper Roller Bearing Rig)) to measure the viscosity change at a rate of 100 ℃ to express the change in viscosity.
[표 2]TABLE 2
비교예 1, 2는 고분자 물질인 점도 지수 향상제의 전단력에 의한 기능 저하로 전단안정성 시험결과 점도저하율은 38%로 열세이었다. 비교예 3은 점도특성이 양호하나, 고가의 합성유(PAO)를 사용하여 과도한 가격상승이 예상된다. 비교예 4는 전단안정성은 양호하나, 저온 점도가 과도하게 상승하였다.In Comparative Examples 1 and 2, the viscosity stability ratio was inferior to 38% as a result of the shear stability test due to the decrease in function caused by the shear force of the viscosity index improver which is a polymer material. Comparative Example 3 has good viscosity characteristics, but excessive price increase is expected by using expensive synthetic oil (PAO). In Comparative Example 4, the shear stability was good, but the low temperature viscosity was excessively increased.
실시예 1은 시험결과 요구되는 점도 특성과 안정적인 전단내구성을 보여주었다.Example 1 showed the required viscosity properties and stable shear durability as a result of the test.
실험예Experimental Example 2 : 2 : 싱크로Synchro 나이저링Aging 마찰 특성 Friction characteristics
상기 실시예 1 및 비교예 1~4의 기유 조성물을 사용하여 싱크로나이저 링 마찰특성을 시험하였다. Synchronizer ring friction characteristics were tested using the base oil compositions of Example 1 and Comparative Examples 1-4.
하중 400 N, 회전속도 1200 RPM, 온도 100 ℃에서 동계 싱크로나이저링을 사용하여 동마찰계수를 측정하고, 하중 400 N, 회전속도 1 RPM, 온도 100 ℃에서 동계 싱크로나이저링을 사용하여 정마찰계수를 측정하여 그 결과를 하기 표 3에 나타내었다. The dynamic friction coefficient was measured at the load of 400 N, the rotational speed of 1200 RPM, and the temperature of 100 ℃ using the synchronizing ring, and the static friction coefficient of the load was 400 N, the rotational speed of 1 RPM and the temperature of 100 ℃ of the static friction coefficient. Was measured and the results are shown in Table 3 below.
[표 3][Table 3]
싱크로나이저링 마찰특성 시험결과Synchronizing Ring Friction Characteristics Test Results
상기 표 3에 나타낸 바와 같이, 디티오인산아연, TBN300 이상의 칼슘술포네이트, 인산 에스테르계 마찰조정제, 비스 숙신이미드 및 점도 지수 향상제가 배합된 실시예 1의 조성물이 비교예 2 ~ 3의 조성물에 비하여 싱크로나이저링 마찰특성 시험 결과 동마찰계수가 높고, 정마찰계수는 낮게 유지되었다. SAE NO2 마찰시험 결과, 클러치 마찰 특성은 정마찰계수가 높고, 마찰계수비가 1.1 이하로 유지 되어 우수한 마찰특성을 보여주었다.As shown in Table 3, the composition of Example 1 in which dithiophosphate zinc, TBN300 or more calcium sulfonate, phosphate ester friction modifier, bis succinimide, and viscosity index improver were blended, was added to the compositions of Comparative Examples 2-3. Compared with the synchronizing friction test, the dynamic friction coefficient was high and the static friction coefficient was low. As a result of SAE NO2 friction test, the clutch friction characteristics showed high friction coefficient and the friction coefficient ratio was maintained below 1.1.
실험예Experimental Example 3 3
상기 실시예 1 및 비교예 1 ~ 4의 조성물을 사용하여 내하중성 시험을 수행하였다. The load resistance test was performed using the composition of Example 1 and Comparative Examples 1-4.
우선, ASTM D 2789에 따른 TIMKEN OK 하중 시험을 수행하고, 10단, 120 ℃ 온도에서 36시간 동안 시험한 후 기어의 피팅(PITTING) 여부를 확인하여 그 결과를 하기 표 4에 나타내었다.First, the TIMKEN OK load test according to ASTM D 2789 was performed, and the test was performed for 10 hours at a temperature of 120 ° C. for 36 hours, and then the fitting of the gear was confirmed (PITTING) and the results are shown in Table 4 below.
[표 4][Table 4]
상기 표 4에 나타낸 바와 같이, 실시예 1은 내하중성 시험결과 TIMKEN OK 하중 및 FZG 테스트를 만족하였다.As shown in Table 4, Example 1 satisfies the TIMKEN OK load and FZG test results of the load resistance test.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105670755A (en) * | 2016-02-26 | 2016-06-15 | 北京雅士科莱恩石油化工有限公司 | Long-life, low-temperature and energy-saving manual transmission oil |
| KR20190076604A (en) * | 2017-12-22 | 2019-07-02 | 현대자동차주식회사 | Manual transmission oil composition having enhanced frictional property and fuel efficiency |
| US10563148B2 (en) | 2013-03-29 | 2020-02-18 | Idemitsu Kosan Co., Ltd. | Lubricant oil composition |
| CN111073729A (en) * | 2018-10-18 | 2020-04-28 | 现代自动车株式会社 | Automatic transmission oil composition |
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2009
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10563148B2 (en) | 2013-03-29 | 2020-02-18 | Idemitsu Kosan Co., Ltd. | Lubricant oil composition |
| CN105670755A (en) * | 2016-02-26 | 2016-06-15 | 北京雅士科莱恩石油化工有限公司 | Long-life, low-temperature and energy-saving manual transmission oil |
| CN105670755B (en) * | 2016-02-26 | 2020-06-26 | 北京雅士科莱恩石油化工有限公司 | Manual transmission oil |
| KR20190076604A (en) * | 2017-12-22 | 2019-07-02 | 현대자동차주식회사 | Manual transmission oil composition having enhanced frictional property and fuel efficiency |
| CN111073729A (en) * | 2018-10-18 | 2020-04-28 | 现代自动车株式会社 | Automatic transmission oil composition |
| KR20200043748A (en) | 2018-10-18 | 2020-04-28 | 현대자동차주식회사 | Automatic transmission oil composition |
| US10793804B2 (en) | 2018-10-18 | 2020-10-06 | Hyundai Motor Company | Automatic transmission oil composition |
| CN111073729B (en) * | 2018-10-18 | 2022-08-12 | 现代自动车株式会社 | Automatic transmission oil composition |
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