CN103232884A - Universal oil composition for environment-friendly energy-saving engineering machinery - Google Patents

Abstract

The invention discloses a universal oil composition for environment-friendly energy-saving engineering machinery. The universal oil composition comprises the following components according to mass percent: 85%-90% of composite base oil and 15%-10% of other additives. The universal oil composition for the environment-friendly energy-saving engineering machinery adopts a poly-alpha-olefin (PAO) and dioctyl sebacate composition as the base oil, is good in comprehensive performance, can replace diesel engine oil, hydraulic oil, gear oil, hydraulic transmission fluid and other various unit oil used in the engineering machinery, achieves multiple purposes, increases the power of a diesel engine, improves the reliability, the fuel economy and the low-temperature start performance of the diesel engine and the working efficiency and the precision of a hydraulic system, and effectively prolongs the service life and the oil draining period of the hydraulic system, the diesel engine, a gear system, a hydraulic transmission system and other various units.

Description

Environment-friendly and energy-saving construction machinery general oil composition

technical field

The invention relates to an environment-friendly and energy-saving general oil composition for engineering machinery.

Background technique

With the development of construction machinery manufacturing technology, construction machinery has been widely used in various fields. Diesel engines have the advantages of compact structure, light weight, high thermal efficiency, good startability, large power and speed range, etc., so they are widely used in construction machinery. Among them, as its main power device; in order to ensure that the diesel engine can be used normally in the working conditions of construction machinery, diesel engine oil is one of the necessary conditions for the normal operation of the diesel engine, and the diesel engine needs to be cooled and lubricated in order to work normally , sealing, anti-friction, dispersion; the quality and performance of diesel engine oil also directly affect the performance and service life of diesel engine.

Hydraulic transmission is a transmission device commonly used in construction machinery and equipment. It is a system that uses liquid as a transmission medium and uses the pressure or kinetic energy of the liquid to transmit energy. Hydraulic transmission has the characteristics of small size, light weight, high power, fast response, high precision, large speed range, smooth movement, and convenient operation; the hydraulic system is basically composed of four parts: power components, operating components, executive components and auxiliary components. Composed, but the specific structure of the hydraulic system of various mechanical equipment is not the same. Due to the structure and operating conditions of the hydraulic system of construction machinery compared with the ordinary industrial hydraulic system, there are great differences in the working environment, power transmission per unit volume, manufacturing precision and environmental protection requirements; therefore, the current common Anti-wear hydraulic oil can no longer meet the needs of society and production.

The gear system is one of the most important transmission methods in construction machinery; in order to ensure that the gear system can be used normally in the working conditions of construction machinery, it is necessary to prevent damage such as wear, abrasion, gluing, and pitting on the tooth surface. The service life of the system puts forward higher requirements for the gear oil's extreme pressure and anti-wear properties, high shear stability, rust resistance, and maintaining sufficient oil film thickness. At the same time, the hydraulic transmission system in construction machinery also requires that the hydraulic transmission fluid has good oxidation resistance, shear resistance, foam resistance, rust resistance, low temperature fluidity, and suitable dynamic and static friction, so as to reduce mechanical friction. It has a special protective effect on the transmission and hydraulic torque converter in case of failure and under severe working conditions.

At present, there is no special hydraulic oil for the hydraulic system of construction machinery, and the diesel engine oil used in the diesel engine and the anti-wear hydraulic oil used in the hydraulic system are mainly mineral type; due to the poor biodegradability of mineral oil, it is difficult to decompose, resulting in The pollution of the natural environment is becoming more and more serious. As people pay more and more attention to environmental protection, the research on environment-friendly lubricants has become a focus of attention.

Contents of the invention

The technical problem to be solved by the present invention is to provide an environment-friendly and energy-saving general-purpose oil composition for construction machinery with good comprehensive performance, good biodegradability, long oil change interval and beneficial to prolong the service life of equipment.

The present invention solves the above technical problems with the following technical solutions:

The environment-friendly and energy-saving construction machinery general oil composition of the present invention, its raw material and its mass percentage are:

components Content (mass percentage) Composite base oil 85%～90% Antioxidant and anticorrosion agent 0.5%～3% metal cleaner 3%～5% Ashless Dispersant 5%～8% Extreme Pressure Antiwear Agent 1%～3% Rust inhibitor 0.05%～0.2% oily agent 0.1%～0.3% Anti-foaming agent 0.005%～0.01% anti-emulsifier 0.05%～0.3% metal deactivator 0.02%～0.08% viscosity improver 1%～2%

in:

Composite base oil is a composite of polyalphaolefin (PAO) with a mass ratio of 55% to 50% and dioctyl sebacate at 45% to 50%;

The antioxidant preservative is the primary alkyl type (branched or straight chain short chain and long chain) and 55% to 40% of dialkyl disulfide in the mass ratio of 45% to 60% Combination of oxymolybdenum phosphate and oil-soluble organic molybdenum;

The metal detergent is composed of 30%-40% low-alkaline petroleum calcium sulfonate, 35%-30% medium-alkaline synthetic calcium sulfonate and 35%-30% high-alkaline alkylphenate;

The ashless dispersant is composed of 30%-40% monosuccinimide (high nitrogen) and 70%-60% polymer succinimide (low nitrogen) by mass ratio;

The extreme pressure antiwear agent is compounded by mass ratio of 50% to 60% of isobutylene sulfur and 50% to 40% of di-n-butyl phosphite;

The antirust agent is a composite of benzotriazole and 30% to 40% dodecenyl succinate with a mass ratio of 70% to 60%;

The oily agent is composed of 40%-50% ethylene glycol oleate and 60%-50% benzotriazole fatty amine salt in mass ratio;

The antifoaming agent is a homopolymer of acrylate;

The anti-emulsifier is a compound of propylene oxide/ethylene oxide copolymer and amine/ethylene oxide polycondensate 1:1;

The metal deactivator is composed of thiadiazole derivatives with a mass ratio of 60% to 50% and benzotriazole derivatives with a mass ratio of 40% to 50%;

The viscosity modifier is low molecular weight (≤2000) polyisobutylene.

The notable advantages of the environmentally friendly and energy-saving construction machinery general oil composition of the present invention are:

1. It has good low viscosity, low temperature fluidity, cooling, sealing, low volatility, low traction coefficient, energy saving, high viscosity index, high shear stability, lubricity, high and low temperature deposit control performance , anti-foam performance, anti-emulsification performance, anti-gel performance, filtration performance, rubber compatibility, acid neutralization performance, lower dynamic and static friction coefficient of metal surface, thermal oxidation stability, oil film thickness, bearing capacity, shock absorption, Noise reduction, wear resistance, corrosion resistance, additive solubility, long oil change intervals, biodegradability.

2. It can replace diesel engine oil, hydraulic oil, gear oil, hydraulic transmission fluid and many other unit oils used in construction machinery to realize multiple uses of one oil; that is, it can effectively avoid the occurrence of oil-contamination accidents and reduce management costs and production costs.

3. Increase the power of the diesel engine, improve the reliability and fuel economy of the diesel engine, improve the low-temperature starting performance of the diesel engine, and improve the efficiency and precision of the hydraulic system; effectively extend the hydraulic system, diesel engine, Service life and oil change intervals of gear systems, hydraulic transmission systems and many other units.

Detailed ways

The present invention aims at the performance requirements of oil used in diesel engines, hydraulic systems, gear systems and hydraulic systems in construction machinery at present, and in order to meet the requirements of actual working conditions of construction machinery, polyalphaolefin (PAO) and dioctyl sebacate are used to compound As the base oil of environment-friendly and energy-saving general-purpose oil for construction machinery; through the use of artificial neural network algorithm, targeted screening and prediction of various functional additives, and the selection of optimal formula by genetic algorithm, seeking to obtain different specifications and cost performance General oil components for construction machinery.

Dioctyl sebacate produced from castor oil has excellent low-temperature performance, lubricity, demulsibility, corrosion resistance, viscosity-temperature performance, low volatility, biodegradability, high temperature resistance, and low freezing point and low viscosity, etc., compounded with polyalphaolefin (PAO) as the base oil of environmentally friendly and energy-saving construction machinery oil, use artificial neural network algorithm to select a variety of functional additives, and perform mathematical model simulation calculation and screening of characteristics to obtain Obtain the best cost-effective additive usage, study their compatibility, and finally get an environmentally friendly and energy-saving construction machinery oil formula. The study of environment-friendly and energy-saving construction machinery oil is conducive to protecting the environment, and at the same time can achieve energy saving, emission reduction, and particle emission reduction, so as to adapt to the development of society.

The additives used in the present invention appear in the form of composite additives, make full use of single agents with excellent performance, and rationally match with many additives to seek the synergistic effect of additives, thereby forming a composite agent with excellent performance to meet the actual working conditions needs. The composite base oil of the invention has excellent low temperature performance, high temperature oxidation resistance and strong wear resistance. The viscosity of base oil is little affected by temperature, it can flow smoothly in low temperature environment, and can maintain proper viscosity in high temperature, high heat load and high shear working conditions; it protects hydraulic system, diesel engine, gear system, hydraulic The wear and corrosion resistance of the transmission system prolongs the service life of the whole machine.

Example 1:

Blended according to the following raw material components and mass percentages:

Example 2:

Blended according to the following raw material components and mass percentages:

Example 3:

Blended according to the following raw material components and mass percentages:

As measured by the provincial technical supervision department, all the physical and chemical indexes of the oil product in Example 2 of the present invention meet the requirements for use, and its typical physical and chemical indexes are shown in Table 1.

Table 1 Typical physical and chemical indicators of environment-friendly and energy-saving general-purpose oil for construction machinery

Claims (10)

1. An environment-friendly and energy-saving general-purpose oil composition for construction machinery, characterized in that the raw materials and their mass percentages are: components Mass percentage content Composite base oil 85%～90% Antioxidant and anticorrosion agent 0.5%～3% metal cleaner 3%～5% Ashless Dispersant 5%～8% Extreme Pressure Antiwear Agent 1%～3% Rust inhibitor 0.05%～0.2% oily agent 0.1%～0.3% Anti-foaming agent 0.005%～0.01% anti-emulsifier 0.05%～0.3% metal deactivator 0.02%～0.08% viscosity improver 1%～2% . 2. The environment-friendly and energy-saving general-purpose oil composition for construction machinery as claimed in claim 1, wherein the composite base oil is polyalphaolefin PAO and 45% to 50% sebacic acid in mass ratio of 55% to 50% Dioctyl compound. 3. The environment-friendly and energy-saving general-purpose oil composition for engineering machinery as claimed in claim 1, characterized in that the anti-oxidant preservative is a primary alkyl type branch in the thiophosphobioctyl zinc salt with a mass ratio of 45% to 60%. Chain or straight chain short chain and long chain compounded with 55% to 40% dialkyl molybdenum dithiophosphate oil-soluble organic molybdenum. 4. The environment-friendly and energy-saving general-purpose oil composition for construction machinery as claimed in claim 1, wherein the metal detergent is low-basic petroleum calcium sulfonate with a mass ratio of 30% to 40%, 35% to 30% of Base value synthetic calcium sulfonate compounded with 35% to 30% high base value alkyl phenate. 5. The environment-friendly and energy-saving construction machinery universal oil composition as claimed in claim 1, characterized in that the ashless dispersant is high nitrogen monosuccinimide with a mass ratio of 30% to 40% and 70% to 60% Low nitrogen polymer succinimide composite. 6. The environment-friendly and energy-saving general-purpose oil composition for construction machinery as claimed in claim 1, wherein the extreme pressure antiwear agent is 50% to 60% of sulfurized isobutylene and 50% to 40% of di-normal phosphorous acid Butyl compound. 7. The environment-friendly and energy-saving general-purpose oil composition for construction machinery as claimed in claim 1, wherein the antirust agent is benzotriazole and 30% to 40% dodecene in a mass ratio of 70% to 60%. succinate compound. 8. The environment-friendly and energy-saving construction machinery universal oil composition as claimed in claim 1, characterized in that the oily agent is ethylene glycol oleate and 60% to 50% benzotriazole by mass ratio Fatty amine salt compound. 9. The environment-friendly and energy-saving construction machinery universal oil composition as claimed in claim 1, characterized in that the antifoaming agent is a homopolymer of acrylate; the anti-emulsifying agent is propylene oxide/ethylene oxide copolymer and amine Composite with ethylene oxide polycondensate. 10. The environment-friendly and energy-saving construction machinery universal oil composition as claimed in claim 1, characterized in that the metal deactivator is thiadiazole derivatives and 40% to 50% benzo Triazole derivative compound; viscosity modifier is low molecular weight polyisobutylene.