CN104862034A

CN104862034A - Lubricant combination for cold spinning copper alloy tube

Info

Publication number: CN104862034A
Application number: CN201510303968.6A
Authority: CN
Inventors: 黄福川; 李康春; 卢朝霞; 黄旖瑶
Original assignee: Guangxi University
Current assignee: Guangxi University
Priority date: 2015-06-05
Filing date: 2015-06-05
Publication date: 2015-08-26

Abstract

The invention discloses a lubricant combination for a cold spinning copper alloy tube. The lubricant combination is characterized by adopting 650SN base oil as base oil and cooperating with various additives including an oiliness agent, an extreme pressure agent, an anti-wear agent, an antioxidant, a friction modifier, a metal deactivator, a reinforcing agent, an auxiliary and an antirust agent. The lubricant combination disclosed by the invention is better in lubricating property, cooling property, wettability and anti-rust property, the strength of an oil film in a deformation zone is increased, the friction coefficients are reduced, and the oil film strength and thickness properties are kept stable; the adhesion is high, and the wear resistance, the viscosity-temperature property and the flushing property are good; the extreme pressure property is high, the wear of cold spinning equipment and the tube damage are reduced, the flow shear stress is smaller, the surface smoothness and the size and specification precision of the processed seamless steel tube are improved, and use and cleaning are convenient.

Description

Cold spinning weldless steel tube lubricant compositions

Technical field

The invention belongs to metal working lubricant field, particularly cold spinning weldless steel tube lubricant compositions.

Background technology

In the cold spinning course of processing, except the friction between material, mould, on the contact surface because the speed of cold spinning improves, will occurrence temperature sharply rise.Heavy wear or sintering is there is, the effect thus requiring lubricant to play antifriction and prevent wearing and tearing, cool, lubricate in order to reduce in cold spinning process; Be improved cold spinning speed and section reduction rate simultaneously, to improve the seed output and quality of cold spinning processes, prevent the generation of the defect such as surface imperfection, scuffing, fold, bending, bias, crackle, metal press-in.

And the factor affecting cold spinning processing tube quality has usually: steel pipe character (hardness, degree of cleaning, condition of surface); And the material kind of relevant device and mould Tony; The adaptability of cold spinning lubricant.Due to the difference of mode, condition and range of product that cold spinning is processed, also there is difference to the requirement of lubricant.And lubricating method generally adopt immersion, brush, roll be stained with, traction or circulation etc.Therefore, cold spinning lubricant should meet many-sided requirements such as drawing process condition, industrial safety, economy, environmental friendliness, energy-conservation, reduction of discharging.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of tool good lubricating properties, cooling, wetting property, rust-preventing characteristic, increases oil film strength in distorted area, reduces frictional coefficient, keeps oil film strength and thickness stable performance; Adhesivity is strong, and resistance to abrasion, sticky warm nature, flushing performance are good; Extreme pressure property is strong, reduces wearing and tearing and the tubing damage of cold spinning equipment, has less flowing shear-stress, improve surface smoothness and the dimensions precision of processed weldless steel tube, the cold spinning weldless steel tube lubricant compositions with clearing up easy to use.

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

Cold spinning weldless steel tube lubricant compositions, adopt oil based on 650SN base oil, coordinate multiple additives, its each component and mass percent thereof are:

Component	Mass percent content
		Base oil	Surplus

Oiliness improver	8.0％～10.0％
		Extreme pressure agent	6.0％～7.0％
Anti-wear agent	5.0％～6.0％
		Oxidation inhibitor	0.3％～1.0％
Friction improver	3.0％～5.0％
		Metal passivator	0.8％～1.0％
Strengthening agent	2.0％～3.0％
		Auxiliary agent	2.0％～3.0％
Rust-preventive agent	0.6％～1.0％

Oiliness improver is industrial lard;

Extreme pressure agent is clorafin T301;

Anti-wear agent is sulfide isobutene;

Oxidation inhibitor is 2,6-di-t-butyl mixed phenol T502;

Friction improver is phosphonic acid ester;

Metal passivator is the thiadiazoles derivative of mass ratio 50% and the mercaptobenzimidazole compound of 50%;

Strengthening agent is boronation phosphamidon ester;

Auxiliary agent is Overbased magnesium sulphonates;

Rust-preventive agent is the barium mahogany sulfonate of mass ratio 50% and the benzotriazole compound of 50%.

Remarkable advantage of the present invention has: tool good lubricating properties, cooling, wetting property, rust-preventing characteristic, increases oil film strength in distorted area, reduces frictional coefficient, keeps oil film strength and thickness stable performance; Adhesivity is strong, and resistance to abrasion, sticky warm nature, flushing performance are good; Extreme pressure property is strong, reduces wearing and tearing and the tubing damage of cold spinning equipment, has less flowing shear-stress, improve surface smoothness and the dimensions precision of processed weldless steel tube, easy to use and cleaning.

Embodiment

Embodiment 1:

Each component of following masses percentage ratio is in harmonious proportion and forms:

Component	Mass percent content
		650SN base oil	69.9％
Industrial lard	8.0％
		Clorafin (T301)	6.0％
Sulfide isobutene	5.0％
		2,6-di-t-butyl mixed phenol (T502)	0.6％
Phosphonic acid ester	4.0％
		The thiadiazoles derivative of mass ratio 50% and the mercaptobenzimidazole compound of 50%	0.8％
Boronation phosphamidon ester	2.5％
		Overbased magnesium sulphonates	2.5％
The barium mahogany sulfonate of mass ratio 50% and the benzotriazole compound of 50%	0.7％

Embodiment 2:

Component	Mass percent content
		650SN base oil	69.6％
Industrial lard	9.0％
		Clorafin (T301)	6.5％
Sulfide isobutene	5.5％
		2,6-di-t-butyl mixed phenol (T502)	0.7％
Phosphonic acid ester	3.0％
		The thiadiazoles derivative of mass ratio 50% and the mercaptobenzimidazole compound of 50%	0.9％
Boronation phosphamidon ester	2.0％
		Overbased magnesium sulphonates	2.0％
The barium mahogany sulfonate of mass ratio 50% and the benzotriazole compound of 50%	0.8％

Embodiment 3:

Component	Mass percent content
		650SN base oil	65.3％
Industrial lard	10.0％
		Clorafin (T301)	6.5％
Sulfide isobutene	5.5％
		2,6-di-t-butyl mixed phenol (T502)	0.8％
Phosphonic acid ester	4.5％
		The thiadiazoles derivative of mass ratio 50% and the mercaptobenzimidazole compound of 50%	1.0％
Boronation phosphamidon ester	2.5％
		Overbased magnesium sulphonates	3.0％
The barium mahogany sulfonate of mass ratio 50% and the benzotriazole compound of 50%	0.9％

The main physical and chemical index of embodiment 3 typical case:

Project	Quality index
		40 DEG C of kinematic viscosity/(mm ²﹒s ^-1)	132
Viscosity index	96
		Pour point/DEG C	-12
Flash-point (opening)/DEG C	276
		Last non seizure load (Pb), Kg	93
Acid number/mg KOH ﹒ g ^-1	0.049
		Moisture, %	Vestige
Corrosion test (copper sheet, 100 DEG C, 3h), level	1
		Sulfated ash, %	0.33
Mechanical impurity, %	Nothing

Claims

1. cold spinning weldless steel tube lubricant compositions, is characterized in that: adopt oil based on 650SN base oil, coordinate multiple additives, its each component and mass percent thereof are:

Base oil surplus,

Oiliness improver 8.0% ~ 10.0%,

Extreme pressure agent 6.0% ~ 7.0%,

Anti-wear agent 5.0% ~ 6.0%,

Oxidation inhibitor 0.3% ~ 1.0%,

Friction improver 3.0% ~ 5.0%,

Metal passivator 0.8% ~ 1.0%,

Strengthening agent 2.0% ~ 3.0%,

Auxiliary agent 2.0% ~ 3.0%,

Rust-preventive agent 0.6% ~ 1.0%.

2. cold spinning weldless steel tube lubricant compositions as claimed in claim 1, it is characterized in that, oiliness improver is industrial lard.

3. cold spinning weldless steel tube lubricant compositions as claimed in claim 1, it is characterized in that, extreme pressure agent is clorafin T301.

4. cold spinning weldless steel tube lubricant compositions as claimed in claim 1, it is characterized in that, anti-wear agent is sulfide isobutene.

5. cold spinning weldless steel tube lubricant compositions as claimed in claim 1, it is characterized in that, oxidation inhibitor is 2,6-di-t-butyl mixed phenol T502.

6. cold spinning weldless steel tube lubricant compositions as claimed in claim 1, it is characterized in that, friction improver is phosphonic acid ester.

7. cold spinning weldless steel tube lubricant compositions as claimed in claim 1, it is characterized in that, metal passivator is the thiadiazoles derivative of mass ratio 50% and the mercaptobenzimidazole compound of 50%.

8. cold spinning weldless steel tube lubricant compositions as claimed in claim 1, it is characterized in that, strengthening agent is boronation phosphamidon ester.

9. cold spinning weldless steel tube lubricant compositions as claimed in claim 1, it is characterized in that, auxiliary agent is Overbased magnesium sulphonates.

10. cold spinning weldless steel tube lubricant compositions as claimed in claim 1, it is characterized in that, rust-preventive agent is the barium mahogany sulfonate of mass ratio 50% and the benzotriazole compound of 50%.