CN104194896A

CN104194896A - Caster bean-based composition for oil for high-speed gear pump

Info

Publication number: CN104194896A
Application number: CN201410438860.3A
Authority: CN
Inventors: 黄福川; 覃克; 黄伊琳; 邓富康; 李康春; 马骁飞; 陈彪; 刘宇恒; 黄旖瑶
Original assignee: Guangxi University
Current assignee: Guangxi University
Priority date: 2014-08-30
Filing date: 2014-08-30
Publication date: 2014-12-10

Abstract

The invention discloses a caster bean-based composition for oil for a high-speed gear pump. Poly internal olefin and caster bean-based dioctyl sebacate are compounded as base oil, and multiple composite additives comprising an antiwear agent, an antirust agent, an antioxidant, an antifoaming agent, a metal deactivating agent, a reinforcing agent, an oiliness agent and a friction improver are matched. The caster bean-based composition for the oil for the high-speed gear pump has good viscosity-temperature characteristics and good low temperature fluidity, thermal oxidation stability, shear stability and antifoaming property and can be used for reducing vibration, prolonging service life of equipment, effectively cooling and lubricating a frictional wear kinematic pair and guaranteeing that temperature of a pump body can not exceed the temperature as required.

Description

A kind of composition of castor-oil plant base high speed gear pump oil

Technical field

The invention belongs to industrial lubricant field, particularly a kind of composition of castor-oil plant base high speed gear pump oil.

Background technology

High speed gear pump has compact construction, and volume is little, and lift is high, and rigid structure is good, imports and exports the features such as symmetrical, reliability is high, the life-span is long, resistance to sudden heating is strong.Can in the wide temperature range of 130 ℃～260 ℃, carry thick liquid.Its rotating speed is between 8400～34000r/min, conventionally working temperature is no more than 94 ℃, has been widely used in the production equipments such as chemical fertilizer, polyethylene, polypropylene, vinylbenzene, benzene processed, acetic acid, hydrogenation, reformation, distillation, ethene, butylene, methylethylketone, phenol-acetone, polyvinyl chloride, vinylchlorid and methyl tertiary butyl ether.By filling in the inner parts and structural shape, be different from common impeller pump, it is to be passed through, after step-up gear speedup, to drive flow passage components by common electric motor.Gearbox is the key part of pump high speed, so the special operation condition of high-speed pump has special requirement to its gear oil, and Main Function is Cooling and Lubricator gear and bearing wherein.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind ofly to be had good viscosity-temperature characteristics, good low-temperature fluidity, thermal oxidation stability and shear stability, anti-bubble, lowers vibration simultaneously and go back extension device work-ing life, effective cooling and lubrication friction wearing and tearing kinematic pair, guarantee that pump body temperature is no more than the composition of the castor-oil plant base high speed gear pump oil of regulation.

The present invention adopts following technical scheme to solve the problems of the technologies described above:

A composition for castor-oil plant base high speed gear pump oil, adopts poly-internal olefin and castor-oil plant base dioctyl sebacate compound as base oil, coordinates multiple composite additive, and the mass percent of its each component is:

Component	Mass percent content
		Base oil	Surplus
Oxidation inhibitor	0.8％～1.2％
		Friction improver	2.0％～4.0％
Oiliness improver	0.5％～1.0％
		Anti-wear agent	2.0％～3.0％
Rust-preventive agent	0.8％～1.2％
		Kilfoam	0.003％～0.006％
Metal passivator	1.0％～2.0％
		Strengthening agent	0.3％～0.8％

Base oil is that poly-internal olefin and 40%～50% the castor-oil plant base dioctyl sebacate of mass ratio 60%～50% is compound.

Oxidation inhibitor is 2 of mass ratio 60%～50%, and 6-di-t-butyl mixed phenol and 40%～50% butyl octyl pentanoic are compound.

Friction improver is alkyl phosphorous acid ester.

Oiliness improver is 124 Triazole lipid acid amine salt.

Anti-wear agent is that sulfuration three polybutene and 40%～50% the sulphur phosphoric acid nitrogen containing derivative of mass ratio 60%～50% is compound.

Rust-preventive agent is that benzotriazole and 40%～50% the alkenyl succinic acid half ester of mass ratio 60%～50% is compound.

Kilfoam is that dimethyl silicone oil and 40%～50% acrylate and the ether copolymer T911 of mass ratio 60%～50% is compound.

Metal passivator is that 124 Triazole derivative and 40%～50% the thiadiazole of mass ratio 60%～50% is compound.

Strengthening agent is molybdenum dithiocarbamate.

The remarkable advantage of the composition of a kind of castor-oil plant base high speed gear pump oil of the present invention has: good viscosity-temperature characteristics, good low-temperature fluidity, thermal oxidation stability and shear stability, anti-bubble, lower vibration simultaneously and go back extension device work-ing life, effective cooling and lubrication friction wearing and tearing kinematic pair, guarantee that pump body temperature is no more than the requirement of regulation.

Embodiment

Embodiment 1:

Each component is in harmonious proportion and is formed by following mass percent:

Component	Content (per-cent)
		The poly-internal olefin of mass ratio 60% and 40% dioctyl sebacate (castor-oil plant base) are compound	92.597％
2 of mass ratio 60%, 6-di-t-butyl mixed phenol and 40% butyl octyl pentanoic are compound	0.8％
		Alkyl phosphorous acid ester	2.0％
124 Triazole lipid acid amine salt	0.5％
		Sulfuration three polybutene of mass ratio 60% and 40% sulphur phosphoric acid nitrogen containing derivative are compound	2.0％
The benzotriazole of mass ratio 60% and 40% alkenyl succinic acid half ester are compound	0.8％
		The dimethyl silicone oil of mass ratio 60% and 40% acrylate and ether copolymer (T911) are compound	0.003％
The 124 Triazole derivative of mass ratio 60% and 40% thiadiazole are compound	1.0％
		Molybdenum dithiocarbamate	0.3％

Embodiment 2:

Component	Content (per-cent)
		The poly-internal olefin of mass ratio 55% and 45% dioctyl sebacate (castor-oil plant base) are compound	89.6955％
2 of mass ratio 55%, 6-di-t-butyl mixed phenol and 45% butyl octyl pentanoic are compound	1.0％
		Alkyl phosphorous acid ester	3.0％
124 Triazole lipid acid amine salt	0.75％
		Sulfuration three polybutene of mass ratio 55% and 45% sulphur phosphoric acid nitrogen containing derivative are compound	2.5％
The benzotriazole of mass ratio 55% and 45% alkenyl succinic acid half ester are compound	1.0％
		The dimethyl silicone oil of mass ratio 55% and 45% acrylate and ether copolymer (T911) are compound	0.0045％
The 124 Triazole derivative of mass ratio 55% and 45% thiadiazole are compound	1.5％
		Molybdenum dithiocarbamate	0.55％

Embodiment 3:

Component	Content (per-cent)
		The poly-internal olefin of mass ratio 50% and 50% dioctyl sebacate (castor-oil plant base) are compound	86.794％
2 of mass ratio 50%, 6-di-t-butyl mixed phenol and 50% butyl octyl pentanoic are compound	1.2％
		Alkyl phosphorous acid ester	4.0％
124 Triazole lipid acid amine salt	1.0％
		Sulfuration three polybutene of mass ratio 50% and 50% sulphur phosphoric acid nitrogen containing derivative are compound	3.0％
The benzotriazole of mass ratio 50% and 50% alkenyl succinic acid half ester are compound	1.2％
		The dimethyl silicone oil of mass ratio 50% and 50% acrylate and ether copolymer (T911) are compound	0.006％
The 124 Triazole derivative of mass ratio 50% and 50% thiadiazole are compound	2.0％
		Molybdenum dithiocarbamate	0.8％

The key technical indexes of embodiment 2 products:

Project	Quality index
		Moisture, % is not more than	Vestige
40 ℃ of kinematic viscosity mm ²/s	47.5
		Flash-point (opening) ℃, is greater than	240
Mechanical impurity, % is not more than	Nothing
		Last non seizure load (P _b), Kg is not less than	82
Pour point, ℃, not higher than	-25
		Water soluble acid or alkali	Nothing
Corrosion test (copper sheet, 100 ℃, 3h), level	1
		Viscosity index, is not less than	132
Air release value (50 ℃), min, is not more than	6
		Rubber seal adaptation index, %, is not more than	12
Resistance to emulsion (40-37-3ml), min,, is not more than by 54 ℃	30
		Timken test, N, is not less than	270
FZG gear mechanism test (A/8.3/90), failure level, is not less than	10

Claims

1. a composition for castor-oil plant base high speed gear pump oil, is characterized in that: adopt poly-internal olefin and castor-oil plant base dioctyl sebacate compound as base oil, coordinate multiple composite additive, the mass percent of its each component is:

2. the composition of a kind of castor-oil plant base high speed gear pump oil according to claim 1, is characterized in that, base oil is that poly-internal olefin and 40%～50% the castor-oil plant base dioctyl sebacate of mass ratio 60%～50% is compound.

3. the composition of a kind of castor-oil plant base high speed gear pump oil according to claim 1, is characterized in that, oxidation inhibitor is 2 of mass ratio 60%～50%, and 6-di-t-butyl mixed phenol and 40%～50% butyl octyl pentanoic are compound.

4. the composition of a kind of castor-oil plant base high speed gear pump oil according to claim 1, is characterized in that, friction improver is alkyl phosphorous acid ester.

5. the composition of a kind of castor-oil plant base high speed gear pump oil according to claim 1, is characterized in that, oiliness improver is 124 Triazole lipid acid amine salt.

6. the composition of a kind of castor-oil plant base high speed gear pump oil according to claim 1, is characterized in that, anti-wear agent is that sulfuration three polybutene and 40%～50% the sulphur phosphoric acid nitrogen containing derivative of mass ratio 60%～50% is compound.

7. the composition of a kind of castor-oil plant base high speed gear pump oil according to claim 1, is characterized in that, rust-preventive agent is that benzotriazole and 40%～50% the alkenyl succinic acid half ester of mass ratio 60%～50% is compound.

8. the composition of a kind of castor-oil plant base high speed gear pump oil according to claim 1, is characterized in that, kilfoam is that dimethyl silicone oil and 40%～50% acrylate and the ether copolymer T911 of mass ratio 60%～50% is compound.

9. the composition of a kind of castor-oil plant base high speed gear pump oil according to claim 1, is characterized in that, metal passivator is that 124 Triazole derivative and 40%～50% the thiadiazole of mass ratio 60%～50% is compound.

10. the composition of a kind of castor-oil plant base high speed gear pump oil according to claim 1, is characterized in that, strengthening agent is molybdenum dithiocarbamate.