CN103773577B - Antifriction extreme pressure lubricant for automobile connecting rod bolt, and preparation method and application of lubricant - Google Patents
Antifriction extreme pressure lubricant for automobile connecting rod bolt, and preparation method and application of lubricant Download PDFInfo
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- CN103773577B CN103773577B CN201410067195.1A CN201410067195A CN103773577B CN 103773577 B CN103773577 B CN 103773577B CN 201410067195 A CN201410067195 A CN 201410067195A CN 103773577 B CN103773577 B CN 103773577B
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Abstract
The invention discloses an antifriction extreme pressure lubricant for an automobile connecting rod bolt, and a preparation method and an application of the lubricant. The lubricant is prepared from peanut oil, a compound antifriction extreme pressure additive, a compound antirust lubricant, zinc dialkyl dithiophosphate, a pour point reducer and a methylsilicone oil anti-foaming agent. When the automobile connecting rod bolt is adjusted and tightened during assembly, the antifriction extreme pressure lubricant is applied, so that the friction coefficient can be reduced obviously; the antifriction extreme pressure lubricant is capable of effectively preventing relative displacement between the inner end face of the head of the bolt and the shoulder of a connecting rod cap, protecting the shoulder against damage due to pulling or scratching, avoiding false moment, and enabling real moment to be lower than the technically required tightening moment.
Description
Technical field
The invention belongs to metal protection field, be specifically related to a kind of automobile connecting bar bolt antifriction extreme pressure lubricant and its preparation method and application.
Background technology
The connecting rod product of the crucial accessory of oil engine, motor car engine, in manufacturing process, himself there is closely cooperating of various ways, and the quality of cooperate degree will directly have influence on serviceability and the quality of motor car engine.
In the ordinary course of things, the closely cooperating mainly by connecting rod bolt screwing to the bolt pretightening produced during regulation moment is realized of connecting rod shank and connecting rod cap.But, connecting rod complement is subject to the impact of the factor such as material and contact surface situation in engagement process, bolt member can be takeed on position to the inner face of bolt head and connecting rod cap when tightening and produce relative displacement, cause pulling or scratch of shoulder surface, position, and produce false moment, make true moment lower than the screw-down torque of technical requirements.Motor car engine can be caused operationally thus, because bolt pretightening is not enough, connecting rod shank and connecting rod cap are subject to the friction of bent axle, and the effect of reciprocation force and separation phenomenon occurs, cause bolt looseness even to come off, the normal work directly affecting motor car engine even causes the breaking-up of engine.Therefore, a kind of antifriction extreme pressure lubricant of automobile connecting bar bolt is badly in need of.
Summary of the invention
In order to fill up the blank of prior art, primary and foremost purpose of the present invention is to provide a kind of automobile connecting bar bolt antifriction extreme pressure lubricant.After automobile connecting bar bolt surface application one deck antifriction extreme pressure lubricant of the present invention, there is good antifriction extreme pressure property; There is higher supporting capacity; Shearing resistance is low, can reduce frictional coefficient; Chemical stability is good, does not produce corrosion and other deleterious effect; Can guarantee that connecting rod bolt are when assembling blending and tightening, the inner face preventing bolt head and connecting rod cap are takeed on position and are produced relative displacement, and cause and take on position and easily pull or the scar of scratch.Avoid occurring false moment, make true moment lower than the situation of the screw-down torque of technical requirements.Meanwhile, connecting rod complement product can not select the lubricant of other more difficult cleaning because of the tightening critical process requirement of bolt member, cause connecting rod complement product surface difficulty to give the situation cleaned up.
Another object of the present invention is to provide the preparation method of above-mentioned automobile connecting bar bolt antifriction extreme pressure lubricant, the method adopts exclusive scientific combination Recipe, antifriction extreme pressure lubricant of the present invention is made to have good anti-rust and lubrication performance after automobile connecting bar bolt surface application uses, metal is not corroded, has the function of protection finished surface; Chemical stability is good; Containing heavy metal etc. to human body and the harmful material of environmental toxic, without unpleasant pungent odour, meet environmental requirement.
Another object of the present invention is to provide the application of above-mentioned automobile connecting bar bolt antifriction extreme pressure lubricant.Automobile connecting bar bolt applies antifriction extreme pressure lubricant of the present invention except reducing frictional coefficient; protect finished surface and improve operational condition; guarantee that inner face that connecting rod bolt effectively prevent bolt head when assembling blending and tightening is takeed on position with connecting rod cap and produced relative displacement, cause and take on position and easily pull or the scar of scratch.Avoid occurring false moment, make true moment lower than the situation of the screw-down torque of technical requirements; In addition, the mechanical workout such as tapping, boring, broaching, gear hobbing in metal cutting process is also applicable to; And when precision optical machinery assembles, often because of eccentric, tolerance clearance is little and be difficult to assembling, easily occurs bias, scratch and stuck phenomenon.Then can be easy to assembling blending as embrocated one deck antifriction extreme pressure lubricant of the present invention on the surface at axle chipware, avoid occurring that screens such as to kill at the disadvantage.In addition, also can be applicable to the one or more fasteners such as screw thread be difficult to dismounting time, threaded portion is embrocated one deck antifriction extreme pressure lubricant just greatly to improve and bear portative power and wear resistance, screens when preventing screwed tight, kill and cement phenomenon in life-time service.
Object of the present invention is achieved through the following technical solutions:
A kind of automobile connecting bar bolt antifriction extreme pressure lubricant, is prepared by vegetables oil, duplex anti-friction extreme-pressure additive, composite antirust lubricant, oxidation and corrosion inhibitor, pour point depressant, methyl-silicone oil kilfoam.
Preferably, above-mentioned automobile connecting bar bolt antifriction extreme pressure lubricant is prepared by the composition of following weight percent:
Particularly preferably, above-mentioned automobile connecting bar bolt antifriction extreme pressure lubricant is prepared by the composition of following weight percent:
Described duplex anti-friction extreme-pressure additive is prepared by following methods:
Get 66% chlorinated paraffin-52,20% sulfide isobutene, 10% sulfurized olefin cotton oil and 4% Graphite Powder 99, mixing, is heated to 60 ~ 80 DEG C, is stirred to till mixture is uniformly dissolved completely, obtains duplex anti-friction pole additive; Described per-cent is the per-cent that each composition accounts for duplex anti-friction extreme-pressure additive raw material gross weight.
Described composite antirust lubricant is prepared by following methods:
Get 18.75% petroleum sodium sulfonate, 12.5% neutral dinonyl naphthalene sulfonate barium, 12.5% zinc naphthenate, 6.25% butyl stearate, 6.25% dodecenylsuccinic acid, 31.25% vegetable oil acid, 9.38%S-80 emulsifying agent and 3.12% benzotriazole, mixing, be heated to 55 ~ 75 DEG C, be stirred to mixture dissolve completely transparent till, obtain composite antirust lubricant; Described per-cent is the per-cent that each composition accounts for composite antirust lubricant raw material gross weight.
Used sulfide isobutene, sulfurized olefin cotton oil, zinc naphthenate, zinc dialkyl dithiophosphate, pour point depressant, benzotriazole all moisten friendly chemical industry additive company limited purchased from Nanjing, Jiangsu Province;
Used butyl stearate, vegetable oil acid, methyl-silicone oil kilfoam, Graphite Powder 99 import and export commerce and trade company limited purchased from Guangdong, Guangdong skill.
The preparation method of above-mentioned automobile connecting bar bolt antifriction extreme pressure lubricant, comprises the following steps:
(1) get peanut oil, duplex anti-friction extreme-pressure additive, composite antirust lubricant, methyl-silicone oil kilfoam, mixing, is heated to 55 ~ 75 DEG C, is stirred to mixture and is uniformly dissolved completely, be then cooled to 45 ~ 55 DEG C;
(2) add zinc dialkyl dithiophosphate, pour point depressant again, stirring reaction 30 ~ 60 minutes, removes mechanical impurity with screen filtration, obtains automobile connecting bar bolt antifriction extreme pressure lubricant;
Screen filtration described in step (2) is the mechanical impurity such as various metal-powders, silt particle, fiber carried out with 180 order stainless steel filter screen sieves in natural filtration removal material, and the automobile connecting bar bolt antifriction extreme pressure lubricant foreign matter content after filtration is not more than 0.02%.
Above-mentioned automobile connecting bar bolt antifriction extreme pressure lubricant, for the bolt of automobile connecting bar assembly when assembling blending and tightening, can reduce frictional coefficient, the inner face and the connecting rod cap that prevent bolt head take on position relative displacement, cause to take on position and pull or the scar of scratch.Avoid occurring false moment, make true moment lower than the screw-down torque of technical requirements.Meanwhile, connecting rod complement product can be avoided to select the lubricant of other difficult cleaning, cause connecting rod complement product surface not easily to clean up, do not reach the situation of cleaning effect.In addition, the mechanical workout such as tapping, boring, broaching, gear hobbing in metal cutting is also applicable to; And when precision optical machinery assembles, often because of eccentric, tolerance clearance is little and be difficult to assembling, easily occurs the phenomenons such as bias, scratch and screens.Assembling blending can be easy to as embrocated one deck antifriction extreme pressure lubricant of the present invention on axle chipware surface, avoid disadvantages such as screens occurring, kill.
Automobile connecting bar bolt antifriction extreme pressure lubricant of the present invention is concocted by peanut oil, duplex anti-friction extreme-pressure additive, composite antirust lubricant, antioxidant preservative, pour point depressant and methyl-silicone oil kilfoam and is prepared from.Wherein, duplex anti-friction extreme-pressure additive comprises chlorinated paraffin-52, sulfide isobutene, sulfurized olefin cotton oil, Graphite Powder 99; Composite antirust lubricant comprises petroleum sodium sulfonate, neutral dinonyl naphthalene sulfonate barium, zinc naphthenate, dodecenylsuccinic acid, butyl stearate, vegetable oil acid, S-80 emulsifying agent, benzotriazole.
Automobile connecting bar bolt antifriction extreme boundary lubrication agent prescription of the present invention is reasonable, it for automobile connecting bar bolt assemble blending tighten time, frictional coefficient can be reduced, prevent the inner of bolt head and connecting rod cap to take on position and produce relative displacement and cause and take on position and pull or scratch, avoid occurring false moment, make true moment lower than the screw-down torque of technical requirements.Meanwhile, the lubricant selecting other difficult cleaning can be avoided, and cause connecting rod complement product not wash clean clearly, not reach the situation of cleaning performance.In addition, also can be used in metal cutting, doing the mechanical cutting processing such as tapping, boring, broaching, gear hobbing; And when being used in precision optical machinery assembling, often because of eccentric, tolerance clearance is little and be difficult to assembling, overcomes the problems such as bias, scratch and screens.As embrocated one deck antifriction extreme pressure lubricant of the present invention on axle chipware surface, assembling blending can be easy to, avoid occurring that workpiece is pulled, screens or the disadvantage such as to kill.
In general, the object of process of metal working choice for use lubricant is the friction in order to reduce mechanical means, prevents sintering, reduces wear, to improve the running efficiency of equipment and to reduce power consumption.In the metal forming course of processing, the workpiece material effect of being stressed in a mold easily produces viscous deformation, makes die surface produce normal stress; And shear-stress can be produced in interface when workpiece and die surface generation relative movement.To this, under condition of boundary lubrication, lubricant will be introduced in order to prevent and alleviate frictional wear.
Say on the whole, the metal forming course of processing, to the requirement of lubricant, can be summarized as the following aspects:
1, good film-forming properties to be had, and can adhere to securely at friction surface, play the effect on protection surface;
2, will have lower shearing resistance, frictional coefficient is little, thus avoids unnecessary kinetic equation loss and temperature to rise;
3, should have good physics and chemistry stability, the starting material used containing toxicant or should not produce toxicity and harmful gas, and harmless, not skin irritation, meets environmental requirement;
4, there is higher supporting capacity, especially when low speed high load, there is comparatively high bearing capacity;
5, storage and use are stablized, and be not subject to the impact of temperature, microorganism, not oxidizable, product price is reasonable;
6, easy to use, and easily remove when being attached to workpiece surface.
The present invention has following advantage and effect relative to prior art:
1, the bolt of automobile connecting bar is when assembling blending and tightening, and uses antifriction extreme pressure lubricant of the present invention, obviously can reduce frictional coefficient; Effectively can prevent the inner face of bolt head and connecting rod cap from takeing on position and produce relative displacement, avoid causing shoulder position to pull or scratch, avoid occurring false moment, make true moment lower than the screw-down torque of technical requirements.
2, antifriction extreme pressure lubricant of the present invention, can be used as the lubricant agent special when blending of automobile connecting bar bolts assemblies is tightened, is also applicable to the mechanical cutting processing such as the tapping in metal cutting, boring, broaching, gear hobbing; And when precision optical machinery assembles, overcome the phenomenons such as bias, scratch and screens.As embrocated one deck antifriction extreme pressure lubricant of the present invention on axle chipware surface, can be easy to solve an assembling blending difficult problem, avoiding occurring that workpiece is pulled, screens or the disadvantage such as to kill.
3, antifriction extreme pressure lubricant of the present invention, has good film-forming properties, can in friction surface firm attachment; Effectively can play the effect on protection surface; Have lower shearing resistance, frictional coefficient is little, thus avoids unnecessary kinetic equation loss and temperature rising etc.; There is higher supporting capacity, especially when low speed high load, there is comparatively high bearing capacity; Storage and use are stablized, and raw material sources used is easy to get, and products production instrument and supplies process operation is simple, the antifriction extreme pressure lubricant concocted, be not subject to the impact of temperature, oxidation, microorganism, product can be stored and never degenerate for more than 1 year, and economical and practical result of use is excellent.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment 1
Duplex anti-friction extreme-pressure additive is prepared by following steps:
Add 66% chlorinated paraffin-52,20% sulfide isobutene, 10% sulfurized olefin cotton oil, 4% Graphite Powder 99 in a kettle., and Hybrid Heating is warming up to 60 ~ 80 DEG C, and constantly stirring reaction obtains duplex anti-friction extreme-pressure additive in 30 ~ 60 minutes to mixture is uniformly dissolved completely; Described per-cent is the per-cent that each composition accounts for duplex anti-friction extreme-pressure additive raw material gross weight.
Composite antirust lubricant is prepared by following methods:
Add 18.75% petroleum sodium sulfonate, 12.5% neutral dinonyl naphthalene sulfonate barium, 12.5% zinc naphthenate, 6.25% butyl stearate, 6.25% dodecenylsuccinic acid, 31.25% vegetable oil acid, 9.38%S-80 emulsifying agent, 3.12% benzotriazole in a kettle., and Hybrid Heating is warming up to 55 ~ 75 DEG C, continuous stirring reaction 30 ~ 60 minutes to mixture dissolve completely transparent, obtain composite antirust lubricant; Described per-cent is the per-cent that each composition accounts for composite antirust lubricant raw material gross weight.
A preparation method for automobile connecting bar bolt antifriction extreme pressure lubricant, comprises the following steps:
(1) 31.85% plant flowers oil generation, 50% duplex anti-friction extreme-pressure additive, 16% composite antirust lubricant, 0.1% methyl-silicone oil kilfoam is added in a kettle., be warming up to 55 ~ 75 DEG C, then mix and blend is cooled to 45 ~ 55 DEG C in 30 ~ 60 minutes to mixture is uniformly dissolved completely;
(2) under constantly stirring, add 2% zinc dialkyl dithiophosphate, 0.05% pour point depressant successively, last mix and blend reaction 30 ~ 60 minutes, removes mechanical impurity with screen filtration, obtains automobile connecting bar bolt antifriction extreme pressure lubricant;
Per-cent described in step (1) ~ (2) is the per-cent that each composition accounts for automobile connecting bar bolt antifriction extreme pressure lubricant raw material gross weight.
Embodiment 2
The method for making of duplex anti-friction extreme-pressure additive and composite antirust lubricant is with embodiment 1.
A preparation method for automobile connecting bar bolt antifriction extreme pressure lubricant, comprises the following steps:
(1) 32.74% plant flowers oil generation, 48% duplex anti-friction extreme-pressure additive, 18% composite antirust lubricant, 0.2% methyl-silicone oil kilfoam is added in a kettle., be warming up to 55 ~ 75 DEG C, then mix and blend is cooled to 45 ~ 55 DEG C in 30 ~ 60 minutes to mixture is uniformly dissolved completely;
(2) under constantly stirring, add 1% zinc dialkyl dithiophosphate, 0.06% pour point depressant successively, last mix and blend reaction 30 ~ 60 minutes, removes mechanical impurity with screen filtration, obtains automobile connecting bar bolt antifriction extreme pressure lubricant;
Per-cent described in step (1) ~ (2) is the per-cent that each composition accounts for automobile connecting bar bolt antifriction extreme pressure lubricant raw material gross weight.
Embodiment 3
The method for making of duplex anti-friction extreme-pressure additive and composite antirust lubricant is with embodiment 1.
A preparation method for automobile connecting bar bolt antifriction extreme pressure lubricant, comprises the following steps:
(1) 32.12% plant flowers oil generation, 45% duplex anti-friction extreme-pressure additive, 20% composite antirust lubricant, 0.3% methyl-silicone oil kilfoam is added in a kettle., be warming up to 55 ~ 75 DEG C, then mix and blend is cooled to 45 ~ 55 DEG C in 30 ~ 60 minutes to mixture is uniformly dissolved completely;
(2) under constantly stirring, add 2.5% zinc dialkyl dithiophosphate, 0.08% pour point depressant successively, last mix and blend reaction 30 ~ 60 minutes, removes mechanical impurity with screen filtration, obtains automobile connecting bar bolt antifriction extreme pressure lubricant;
Per-cent described in step (1) ~ (2) is the per-cent that each composition accounts for automobile connecting bar bolt antifriction extreme pressure lubricant raw material gross weight.
Embodiment 4
The method for making of duplex anti-friction extreme-pressure additive and composite antirust lubricant is with embodiment 1.
A preparation method for automobile connecting bar bolt antifriction extreme pressure lubricant, comprises the following steps:
(1) 28.9% plant flowers oil generation, 55% duplex anti-friction extreme-pressure additive, 14% composite antirust lubricant, 0.5% methyl-silicone oil kilfoam is added in a kettle., be warming up to 55 ~ 75 DEG C, then mix and blend is cooled to 45 ~ 55 DEG C in 30 ~ 60 minutes to mixture is uniformly dissolved completely;
(2) under constantly stirring, add 1.55% zinc dialkyl dithiophosphate, 0.05% pour point depressant successively, last mix and blend reaction 30 ~ 60 minutes, removes mechanical impurity with screen filtration, obtains automobile connecting bar bolt antifriction extreme pressure lubricant;
Per-cent described in step (1) ~ (2) is the per-cent that each composition accounts for automobile connecting bar bolt antifriction extreme pressure lubricant raw material gross weight.
The main physicochemical property of the embodiment of the present invention preparation-obtained automobile connecting bar bolt antifriction extreme pressure lubricant compares as shown in table 1 ~ 2.
Table 2: the salient features of the embodiment of the present invention 1 preparation-obtained automobile connecting bar bolt antifriction extreme pressure lubricant
Can be found out by table 1 thermoscreen atmospheric exposure corrosion test, experimental sample is to 45
#steel, Z
30cast iron, H
62brass, Ly
12in the thermoscreen atmospheric exposure corrosion test of aluminium, the extreme boundary lubrication rustless property of embodiment 1 automobile connecting bar bolt antifriction extreme pressure lubricant is better than embodiment 2 ~ 4.
Above-described embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from spirit of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (6)
1. the automobile connecting bar bolt preparation method of antifriction extreme pressure lubricant, is characterized in that comprising the following steps:
(1) get peanut oil, duplex anti-friction extreme-pressure additive, composite antirust lubricant, methyl-silicone oil kilfoam, mixing, is heated to 55 ~ 75 DEG C, is stirred to mixture and is uniformly dissolved completely, be then cooled to 45 ~ 55 DEG C;
(2) add zinc dialkyl dithiophosphate, pour point depressant again, stirring reaction 30 ~ 60 minutes, removes mechanical impurity with screen filtration, obtains automobile connecting bar bolt antifriction extreme pressure lubricant;
The per-cent that each composition accounts for automobile connecting bar bolt antifriction extreme pressure lubricant raw material gross weight is as follows:
Peanut oil: 30 ~ 33%
Duplex anti-friction extreme-pressure additive: 45 ~ 55%
Composite antirust lubricant: 14 ~ 20%
Zinc dialkyl dithiophosphate: 1 ~ 3%
Pour point depressant: 0.05 ~ 0.1%
Methyl-silicone oil kilfoam: 0.1 ~ 0.5%;
The percentage ratio sum of each component is 100% above;
Described duplex anti-friction extreme-pressure additive is prepared by following methods:
Get 66% chlorinated paraffin-52,20% sulfide isobutene, 10% sulfurized olefin cotton oil and 4% Graphite Powder 99, mixing, is heated to 60 ~ 80 DEG C, is stirred to till mixture is uniformly dissolved completely, obtains duplex anti-friction extreme-pressure additive; Described per-cent is the per-cent that each composition accounts for duplex anti-friction extreme-pressure additive raw material gross weight;
Described composite antirust lubricant is prepared by following methods:
Get 18.75% petroleum sodium sulfonate, 12.5% neutral dinonyl naphthalene sulfonate barium, 12.5% zinc naphthenate, 6.25% butyl stearate, 6.25% dodecenylsuccinic acid, 31.25% vegetable oil acid, 9.38%S-80 emulsifying agent and 3.12% benzotriazole, mixing, be heated to 55 ~ 75 DEG C, be stirred to mixture dissolve completely transparent till, obtain composite antirust lubricant; Described per-cent is the per-cent that each composition accounts for composite antirust lubricant raw material gross weight.
2. the preparation method of automobile connecting bar bolt antifriction extreme pressure lubricant according to claim 1, is characterized in that: the per-cent that each composition accounts for automobile connecting bar bolt antifriction extreme pressure lubricant raw material gross weight is as follows:
Peanut oil: 31.85%
Duplex anti-friction extreme-pressure additive: 50%
Composite antirust lubricant: 16%
Zinc dialkyl dithiophosphate: 2%
Pour point depressant: 0.05%
Methyl-silicone oil kilfoam: 0.1%.
3. the preparation method of automobile connecting bar bolt antifriction extreme pressure lubricant according to claim 1, it is characterized in that: the screen filtration described in step (2) is the mechanical impurity carried out with 180 order stainless steel filter screen sieves in natural filtration removal material, and the automobile connecting bar bolt antifriction extreme pressure lubricant foreign matter content after filtration is not more than 0.02%.
4. an automobile connecting bar bolt antifriction extreme pressure lubricant, is characterized in that: be prepared by the method described in any one of claim 1-3.
5. the application of automobile connecting bar bolt antifriction extreme pressure lubricant according to claim 4 in automobile connecting bar assembly bolts assemblies.
6. the application of automobile connecting bar bolt antifriction extreme pressure lubricant according to claim 4 in metal cutting.
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| CN201410067195.1A CN103773577B (en) | 2014-02-26 | 2014-02-26 | Antifriction extreme pressure lubricant for automobile connecting rod bolt, and preparation method and application of lubricant |
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| CN201410067195.1A CN103773577B (en) | 2014-02-26 | 2014-02-26 | Antifriction extreme pressure lubricant for automobile connecting rod bolt, and preparation method and application of lubricant |
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| CN105154199A (en) * | 2015-08-24 | 2015-12-16 | 当涂县中澜橡塑制品有限公司 | Pipeline installation lubricant |
| CN106788159B (en) * | 2016-11-25 | 2018-10-30 | 湖南亿福照明科技有限公司 | A kind of photovoltaic module and the photoelectric integration intelligent lighting system applied to square |
| CN109749828A (en) * | 2017-11-02 | 2019-05-14 | 南京知博工业科技有限公司 | A kind of automatically cleaning antioxidant |
| CN108300551A (en) * | 2018-03-12 | 2018-07-20 | 徐州市腾顺工贸有限公司 | A kind of numerical control machine tool cutting liquid and preparation method thereof |
| CN111793516B (en) * | 2020-06-28 | 2022-08-02 | 重庆常升里科技有限公司 | Radiation-resistant and high-temperature-resistant thread lubricating paste and preparation method and application thereof |
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