CN103695085B - Lubricant for hot extrusion aluminum and aluminum alloy materials - Google Patents

Abstract

The invention discloses a lubricant for hot extrusion aluminum and aluminum alloy materials. 32# industrial white oil serving as base oil is matched with multiple composite additives. The lubricant for hot extrusion aluminum and aluminum alloy materials disclosed by the invention has the characteristics of moderate viscosity, strong infiltration capacity, strong adhesion and good viscosity-temperature characteristic, and can improve the compression resistance and fracture resistance of the hot extrusion materials and improve the dimensional accuracy of the cross section so that metal can flow uniformly, the friction coefficient is reduced, the non-uniformity in tissue and performance along the longitudinal direction of the product is reduced, the extrusion forming effect is improved, the surface smoothness is improved, the coarse grain ring is prevented, the extrusion force is reduced, the flash point and ignition point are relatively high, the evaporation loss is little, the phenomenon of metal bonding a tool can be prevented, and the service life of the tool is prolonged.

Description

The lubricant of hot extrusion aluminum and aluminum alloy mateial

Technical field

The invention belongs to the field of lubricant of non-ferrous metals processing extrusion process lubricant, particularly hot extrusion aluminum and aluminum alloy mateial.

Background technology

The hot extrusion of Al and Alalloy, normally adopt horizontal extrusion machine, pressure is 50 ~ 4000 tons, and pressure is mainly by hydraulic oil pressure system or the supply of high density dissolving oil hydraulic efficiency system.The overflow mould adopted has: flat-die, prod cast and diffluence combination die.When extruded tube and hollow profile, multiplex diffluence combination die.Must be noted that not make system corrode, ensure the lubrication of hydro-pump, piston and valve etc.

When hot extrusion, spraying lubrication is carried out to tool and mould, aluminium base, sample block, die face and axle rod, to improve cross dimensions tolerance range, make metal flow even, reduce frictional coefficient, tissue, performance ununiformity on minimizing is longitudinal along goods, improve extrusion molding effect, improve smooth surface, prevent coarse grain ring, reduce squeeze, prevent metal bonded tools, improve the work-ing life of instrument.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of lubricant of hot extrusion aluminum and aluminum alloy mateial.This lubricant meets modest viscosity, penetrating power and strong adhesion, viscosity-temperature characteristics are good, improve carrying capacity, the resistance to fracture power of hot extrusion material, improve cross dimensions tolerance range, reduce frictional coefficient, reduce the ununiformity of performance, improve smooth surface, reduce squeeze, prevent metal bonded tools, improve the requirement of tool life.

The present invention solves the problems of the technologies described above by following technical scheme: adopt oil based on No. 32 industrial white oils, coordinate multiple composite additive, its each component and mass percent are:

Component	Content (mass percent)
		Base oil	Surplus
Oiliness improver	5.0%～10.0%
		Anti-wear agent	3.0%～5.0%
Extreme pressure agent	3.0%～5.0%
		Oxidation inhibitor	0.8%～1.2%

Friction improver	3.0%～5.0%
		Kilfoam	0.005%～0.01%
Strengthening agent	3.0%～5.0%

Base oil is No. 32 industrial white oils.

Oiliness improver is the lanolin of mass ratio 50% ~ 40% and the butter compound of 50% ~ 60%.

Anti-wear agent is ethyl palmitate.

Extreme pressure agent is boronation phosphoric acid ester.

Oxidation inhibitor is the 2,6 ditertiary butyl p cresol of mass ratio 50% ~ 40% and the fourth octyl diphenylamine compound of 50% ~ 60%.

Friction improver is the stearic acid of mass ratio 50% ~ 40% and ten yuan of alcohol compounds of 50% ~ 60%.

Kilfoam is dimethyl silicone oil.

Strengthening agent is the beeswax of mass ratio 50% ~ 40% and the Microcrystalline Wax compound of 50% ~ 60%.

The lubricant of hot extrusion aluminum and aluminum alloy mateial of the present invention, have that modest viscosity, penetrating power are strong, the characteristic of strong adhesion, viscosity-temperature characteristics are good, the carrying capacity of hot extrusion material, resistance to fracture power can be improved, improve cross dimensions tolerance range, make metal flow even, reduce frictional coefficient, reduce along tissue, performance ununiformity in goods longitudinal direction, improve extrusion molding effect, improve smooth surface, prevent coarse grain ring, reduce squeeze, flash-point, point of ignition are higher, and vaporization losses is little, prevent metal bonded tools, improve the work-ing life of instrument.

Embodiment

Embodiment 1:

Following component is in harmonious proportion by mass percentage and forms:

Component	Content (mass percent)
		No. 32 industrial white oils	82.0%
The lanolin of mass ratio 40% and the butter compound of 60%	5.195%
		Ethyl palmitate	3.0%
Boronation phosphoric acid ester	3.0%
		The 2,6 ditertiary butyl p cresol of mass ratio 50% and the fourth octyl diphenylamine compound of 50%	0.8%
The stearic acid of mass ratio 45% and 55% ten yuan of alcohol compounds	3.0%
		Dimethyl silicone oil	0.005%
The beeswax of mass ratio 50% and the Microcrystalline Wax compound of 50%	3.0%

Above component summation is 100%.

Embodiment 2:

Following component is in harmonious proportion by mass percentage and forms:

Component	Content (mass percent)
		No. 32 industrial white oils	68.8%
The lanolin of mass ratio 50% and the butter compound of 50%	10.0%
		Ethyl palmitate	5.0%
Boronation phosphoric acid ester	5.0%
		The 2,6 ditertiary butyl p cresol of mass ratio 40% and the fourth octyl diphenylamine compound of 60%	1.19%
The stearic acid of mass ratio 45% and 55% ten yuan of alcohol compounds	5.0%
		Dimethyl silicone oil	0.01%
The beeswax of mass ratio 50% and the Microcrystalline Wax compound of 50%	5.0%

Above component summation is 100%.

Embodiment 3:

Following component is in harmonious proportion by mass percentage and forms:

Component	Content (mass percent)
		No. 32 industrial white oils	74.9%
The lanolin of mass ratio 50% and the butter compound of 50%	8.0%
		Ethyl palmitate	4.0%
Boronation phosphoric acid ester	4.0%
		The 2,6 ditertiary butyl p cresol of mass ratio 40% and the fourth octyl diphenylamine compound of 60%	1.09%
The stearic acid of mass ratio 40% and 60% ten yuan of alcohol compounds	4.0%
		Dimethyl silicone oil	0.01%
The beeswax of mass ratio 45% and the Microcrystalline Wax compound of 55%	4.0%

Above component summation is 100%.

The main physical and chemical index of embodiment 1 product is:

Project	Quality index
		Moisture, %	Vestige
40 DEG C of kinematic viscosity mm 2/s	33.8

Flash-point (opening) DEG C,	180
		Mechanical impurity, %	Nothing
Last non seizure load (Pb), Kg	100
		Pour point, DEG C,	-10
Water soluble acid or alkali	Nothing
		Corrosion test (copper sheet, 100 DEG C, 3h), level	1
Viscosity index, is not less than	90

Claims (1)

1. a lubricant for hot extrusion aluminum and aluminum alloy mateial, it is characterized in that oil based on employing No. 32 industrial white oils, coordinate multiple composite additive, its each component and mass percent are:

Component Mass percentage content Base oil Surplus Oiliness improver 5.0％～10.0％ Anti-wear agent 3.0％～5.0％ Extreme pressure agent 3.0％～5.0％ Oxidation inhibitor 0.8％～1.2％ Friction improver 3.0％～5.0％ Kilfoam 0.005％～0.01％ Strengthening agent 3.0％～5.0％

Wherein:

Oiliness improver is the lanolin of mass ratio 50% ~ 40% and the butter compound of 50% ~ 60%;

Anti-wear agent is ethyl palmitate;

Extreme pressure agent is boronation phosphoric acid ester;

Oxidation inhibitor is the 2,6 ditertiary butyl p cresol of mass ratio 50% ~ 40% and the fourth octyl diphenylamine compound of 50% ~ 60%;

Friction improver is the stearic acid of mass ratio 50% ~ 40% and ten yuan of alcohol compounds of 50% ~ 60%;

Kilfoam is dimethyl silicone oil;

Strengthening agent is the beeswax of mass ratio 50% ~ 40% and the Microcrystalline Wax compound of 50% ~ 60%.