KR20020043015A - A composition for manual transmission oil - Google Patents
A composition for manual transmission oil Download PDFInfo
- Publication number
- KR20020043015A KR20020043015A KR1020000072411A KR20000072411A KR20020043015A KR 20020043015 A KR20020043015 A KR 20020043015A KR 1020000072411 A KR1020000072411 A KR 1020000072411A KR 20000072411 A KR20000072411 A KR 20000072411A KR 20020043015 A KR20020043015 A KR 20020043015A
- Authority
- KR
- South Korea
- Prior art keywords
- manual transmission
- transmission oil
- oil composition
- zinc dithiophosphate
- composition
- Prior art date
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Classifications
-
- 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
-
- 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 자동차용 수동변속기유 조성물에 관한 것으로서, 더욱 상세하게는 종래의 아연디티오포스페이트(Zn-DTP)와 금속계 청정분산제에 인계 마찰조정제를 소정량 사용함으로써, 최적의 변속성능과 내마모성을 가지는 자동차용 수동변속기유 조성물에 관한 것이다.The present invention relates to a manual transmission oil composition for automobiles, and more particularly, by using a predetermined amount of a phosphorus-based friction modifier in a conventional zinc dithiophosphate (Zn-DTP) and a metallic clean dispersant, thereby having an optimum shift performance and wear resistance. It relates to a manual transmission oil composition for automobiles.
종래 자동차 수동변속기유는 극압성과 내마모성을 높이기 위해 황, 인계 첨가제를 사용하고 있으며, 대표적인 황계 첨가제로는 황화올레핀, 폴리설파이드, 황화유지 등이 사용되고 있고, 대표적인 인계 첨가제로는 인산에스테르 또는 인산에스테르아민염 등이 사용되고 있다.Conventional automobile manual transmission oils are using sulfur and phosphorus additives to increase extreme pressure and wear resistance, and representative sulfur additives include olefin sulfides, polysulfides, and sulfide oils and the like. Salts and the like are used.
또한, 일반적으로 자동차의 수동변속기유는 높은 극압성을 갖기위해서 황, 인계 극압제의 배합량을 증대시켜 사용하였다.In addition, in general, manual transmission oil of automobiles is used by increasing the compounding amount of sulfur and phosphorus extreme pressure agent in order to have high extreme pressure.
그러나, 황, 인계 극압제의 배합량을 증대시키면 고온 조건하에서 산화 및 열화에 의해 슬러지가 발생되어 소부하, 마모증대 및 부식마모를 초래하는 문제점이 있다. 또한 대부분의 황, 인계 극압제를 사용한 수동변속기유는 변속시 충돌 소음을 발생시키는 원인이 되기도 한다.However, when the amount of sulfur and phosphorus-based extreme pressure agent is increased, sludge is generated by oxidation and deterioration under high temperature conditions, resulting in a small load, increased wear, and corrosion abrasion. In addition, manual transmission oils using most sulfur and phosphorous extreme pressure may cause collision noise during shifting.
이러한 문제를 극복하기 위해 아연디티오포스페이트와 금속계 청정분산제를 사용한 수동변속기유가 개발되어 산화안정성, 변속성능 등이 우수한 효과를 얻었으나, 고하중·고토크에서 기어 및 베어링이 파손되며, 저온에서의 변속성능이 저하되는 문제점이 있다.In order to overcome this problem, manual transmission oils using zinc dithiophosphate and metal-based dispersant have been developed to achieve excellent effects such as oxidative stability and shifting performance.However, gears and bearings are damaged at high loads and high torques. There is a problem that the speed change performance is reduced.
이와 같이, 자동차 수동변속기유는 고속회전, 고부하 환경에서 작동되므로 변속성능과 내마모성이 우수한 물성이 필요한 바, 자동차의 성능이 향상되고 고급화되면서 새로운 자동차용 수동변속기유 조성물의 개발이 절실히 요구되고 있는 실정이다.As such, the manual transmission oil of the automobile operates in a high speed rotation and high load environment, and thus requires excellent physical properties such as shifting performance and wear resistance. Therefore, the development of a new manual transmission oil composition for automobiles is urgently required as the performance of the automobile is improved and advanced. to be.
따라서, 본 발명은 종래의 상기와 같은 문제점을 개선하기 위하여 종래의 아연디티오포스페이트, 금속계 청정분산제에 인계 마찰조정제를 소정량 사용함으로써 최적의 변속성능과 내마모성을 가지는 개량된 자동차용 수동변속기유 조성물을 제공하는데 그 목적이 있다.Accordingly, the present invention provides an improved manual transmission oil composition for automobiles having optimal shifting performance and wear resistance by using a predetermined amount of a phosphorus-based friction modifier in a conventional zinc dithiophosphate and a metal-based clean dispersant to improve the above problems. The purpose is to provide.
본 발명은 기유, 아연디티오포스페이트 내마모제, 금속계 청정분산제를 포함하는 자동차용 수동변속기유 조성물에 있어서, 기유 70 ∼ 95 중량%, 아연디티오포스페이트 내마모제 0.05 ∼ 3 중량%, 금속계 청정분산제 0.05 ∼ 5 중량%, 및 인계마찰조정제 0.05 ∼ 5 중량%가 함유되어 있는 자동차용 수동변속기유 조성물을 그 특징으로 한다.The present invention relates to a manual transmission oil composition for automobiles comprising a base oil, a zinc dithiophosphate antiwear agent, and a metallic detergent dispersant, wherein the base oil is 70 to 95 wt%, a zinc dithiophosphate antiwear agent 0.05 to 3 wt% and a metal detergent dispersant 0.05 to 5 The manual transmission oil composition for automobiles which contains the weight% and 0.05-5 weight% of a take-over friction modifier are the characteristics.
이하 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail.
본 발명에 있어서, 주성분으로서 함유되는 기유로는 100℃ 동점도가 3 ∼ 10 cSt이고 점도지수가 100 이상인 고정제 광유, 합성유 중에서 선택된 1종 이상을 사용하는 것이 바람직하며, 전체 조성물내에 그 함유량은 70 ∼ 95 중량%가 바람직하다.In the present invention, it is preferable to use at least one selected from a fixed mineral oil and a synthetic oil having a kinematic viscosity of 3 to 10 cSt and a viscosity index of 100 or more as a base oil contained as a main component, the content of which is 70 95 weight% is preferable.
본 발명에서는 기계작동부의 내하중성과 내마모성을 증가시키기위해 내마모제를 첨가하는바, 내마모제로는 아연디티오포스페이트을 사용하는 것이 바람직하며, 그 함유량은 0.05 ∼ 3 중량%인 것이 바람직하다. 만일 이때 함유량이 0.05 중량% 미만이면 기어 및 동기 링의 마모가 발생되고, 3 중량%보다 과량이면 정마찰계수가 높아져 변속성능이 저하되며 산화안정성이 나빠지는 문제가 발생한다.In the present invention, a wear resistant agent is added to increase the load resistance and wear resistance of the mechanical operating part. As the wear resistant agent, zinc dithiophosphate is preferably used, and the content thereof is preferably 0.05 to 3% by weight. If the content is less than 0.05% by weight, wear of the gear and the synchronous ring occurs. If the content is more than 3% by weight, the static friction coefficient is increased, thereby reducing the shifting performance and deteriorating oxidation stability.
본 발명에 있어서 금속계 청정분산제로는 예컨대 전염기가 200 이상인 마그네슘 설포네이트와 칼슘설포네이트 중에서 선택된 것을 0.05 ∼ 5 중량% 사용하는 것이 바람직하다. 만일 함유량이 0.05 중량% 미만이면 동기 링의 정마찰계수가 높아지고, 5 중량%보다 과량이면 산화안정성 및 내마모성이 저하되는 문제가 발생한다.In the present invention, it is preferable to use, for example, 0.05 to 5% by weight of the metal-based clean dispersant selected from magnesium sulfonate and calcium sulfonate having a total salt of 200 or more. If the content is less than 0.05% by weight, the static friction coefficient of the synchronous ring is high, and if it is more than 5% by weight, the problem of oxidative stability and abrasion resistance decreases.
본 발명에서는 기계작동부의 마찰에 의한 동력손실이나 소음 등의 발생을 방지하기 위해 인계 마찰조정제를 사용하는바, 바람직하기로는 아민포스페이트, 더욱바람직하기로는 다음 화학식(I)로 표시되는 아민포스페이트를 0.05 ∼ 5 중량% 사용하는 것이 바람직하다. 만일 이때 함유량이 0.05 중량% 미만이면 저온에서 정마찰계수가 높아지고, 내마모성이 저하되며 5 중량%보다 과량이면 산화안정이 저하되는 문제가 발생한다.In the present invention, in order to prevent the occurrence of power loss or noise due to the friction of the mechanical operating part, the use of a takeover friction modifier, preferably amine phosphate, more preferably amine phosphate represented by the following formula (I) 0.05 It is preferable to use-5 weight%. If the content is less than 0.05% by weight, the static friction coefficient is increased at low temperature, wear resistance is lowered, and if the content is more than 5% by weight, oxidation stability is lowered.
화학식(I)Formula (I)
여기에서, R, R1, R2는 탄소원자 1 ∼ 20의 알킬기를 나타낸다.Here, R, R 1 and R 2 represent an alkyl group having 1 to 20 carbon atoms.
본 발명에서는 상기 성분이외에 점도지수향상제와 유동성 향상제, 소포제 및 녹부식방지제 등과 같은 통상의 첨가제를 더 첨가할 수 있다.In the present invention, in addition to the above components, conventional additives such as a viscosity index improver, a fluidity improver, an antifoaming agent, and an anticorrosion inhibitor may be further added.
이와 같이, 본 발명에 따른 수동변속기유 조성물은 종래의 아연디티오포스페이트와 금속계 청정분산제에 특정의 인계 마찰조정제를 소정량 사용함으로써, 최적의 변속성능과 내마모성을 가지는 자동차용 수동변속기유 조성물을 얻을 수가 있게 되는 것이다.As described above, the manual transmission oil composition according to the present invention uses a predetermined amount of a specific phosphorus friction modifier in the conventional zinc dithiophosphate and the metal-based clean dispersant, thereby obtaining a vehicle manual transmission oil composition having an optimum transmission performance and wear resistance. It becomes the number.
이하, 본 발명을 다음의 실시예에 의거하여 더욱 상세하게 설명하겠는바, 본 발명이 실시예에 의해 한정되는 것은 아니다.Hereinafter, the present invention will be described in more detail based on the following examples, but the present invention is not limited by the examples.
실시예 1 ∼ 2 및 비교예 1 ∼ 3Examples 1-2 and Comparative Examples 1-3
다음 표1의 조성에 따라 통상적인 방법으로 실시예 및 비교예의 수동변속기유 조성물을 제조하였다.Next, the manual transmission oil compositions of Examples and Comparative Examples were prepared according to the compositions of Table 1 below.
시험예 1Test Example 1
상기 실시예 및 비교예에 따라 제조한 수동변속기유 조성물을 다음의 방법에 따라 물성을 측정하였다.Physical properties of the manual transmission oil composition prepared according to the above Examples and Comparative Examples were measured according to the following method.
<시험 방법><Test method>
1. 4구 내하중성1. 4 ball load resistance
ASTM D 217 방법으로 측정하였다.It was measured by ASTM D 217 method.
2. 팀켄 오케이 로드 lb(TIMKEN OK LOAD lb)2. TIMKEN OK LOAD lb
ASTM방법으로 40 ℃, 속도 800으로 측정하였다.It measured by 40 degreeC and the speed 800 by ASTM method.
3. 산화안정도3. Oxidation Stability
JIS K 2514 방법으로 150 ℃, 200시간 시험 후 40 ℃ 점도증가율과 펜탄불용분을 측정하였다.The viscosity increase rate and the pentane insoluble content were measured after 150 degreeC and 200-hour test by JISK2514 method.
4. 동기 링 마찰계수4. Synchronous ring friction coefficient
속도 1200, 하중 400N, 온도 80 ℃에서 1000주기일 때의 마찰계수를 측정하였다.The coefficient of friction was measured at 1000 cycles at a speed of 1200, a load of 400N, and a temperature of 80 ° C.
상기 표 2로부터 본 발명에 따른 인계 마찰조정제를 아연디티오포스페이트와 금속계 청정분산제와 함께 사용한 실시예 1 ∼ 2가 인계 마찰조정제를 사용하지않은 비교예 1 ∼ 3의 경우보다 동기 링 마찰특성, 산화안정성, 내하중성 등의 제반물성이 우수한 것으로 나타났다.From Table 2, Examples 1 to 2 using the phosphorus friction modifier according to the present invention together with zinc dithiophosphate and the metal-based clean dispersant were compared with those of Comparative Examples 1 to 3 without using the phosphorus friction modifier. It was shown that various physical properties such as stability and load resistance were excellent.
상기한 바와 같이 본 발명에 따른 수동변속기유 조성물은, 종래의 아연디티오포스페이트, 금속계 청정분산제에다 인계 마찰조정제를 소정량 사용함으로써 최적의 변속성능과 내마모성 등의 개량된 물성을 나타냄으로써 종래에 비해 수동변속기유 교환주기를 크게 연장시키는 효과를 가진다.As described above, the manual transmission oil composition according to the present invention exhibits improved physical properties such as optimum shifting performance and wear resistance by using a predetermined amount of conventional zinc dithiophosphate and metal-based clean dispersant and phosphorus friction modifier. It has the effect of greatly extending the manual transmission oil change interval.
Claims (5)
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| KR1020000072411A KR20020043015A (en) | 2000-12-01 | 2000-12-01 | A composition for manual transmission oil |
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| KR1020000072411A KR20020043015A (en) | 2000-12-01 | 2000-12-01 | A composition for manual transmission oil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100435360B1 (en) * | 2001-06-25 | 2004-06-10 | 현대자동차주식회사 | A composition for manual transmission oil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100435360B1 (en) * | 2001-06-25 | 2004-06-10 | 현대자동차주식회사 | A composition for manual transmission oil |
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