CN103450994B - Cold rolling lubricating agent for tin and tin alloy foils - Google Patents

Abstract

The invention relates to a cold rolling lubricating agent for tin and tin alloy foils. No. 5 industrial white oil is adopted as base oil, a variety of compound additives are used for matching, and the compound additives comprise an anti-wear agent, an oiliness agent, an antioxidant, a defoaming agent, a demulsifying agent and a friction modifier. The lubricating agent has the advantages of short carbon chain, low aromatics, low sulfur content, lower viscosity, large heat capacity, strong cooling, cleaning and dispersion capacities, stable composition and performances, no corrosion against metals and equipment, no toxicity and no irritating odor and can be used for simultaneously improving the process lubrication performance, increasing the strength of an oil film in a deformation area and reducing the friction coefficient.

Description

Tin and its alloy foil cold rolling lubricant

technical field

The invention belongs to the field of lubricant for cold rolling of tin and its alloy foil.

Background technique

Tin, a metal element, is a kind of low-melting-point metal element with a slightly bluish white luster. Tin is a silver-white soft metal with a specific gravity of 7.3g/cm ³ and a low melting point of only 232°C. Melted into a mercury-like liquid. Tin is soft enough to cut through it with a knife. Tin is chemically stable and is not easily oxidized at room temperature; therefore, it often retains its silvery luster. Tin is non-toxic, has a low melting point, and has strong plasticity, but its ductility is very poor, and it will break when pulled, and cannot be drawn into filaments. Tin can have various surface treatment processes and can be made into various styles of products. It is still an indispensable key rare metal in modern industry, known as "industrial monosodium glutamate", and is widely used in electronics, information, electrical appliances, chemicals, metallurgy, building materials, Machinery, food packaging and other industries.

In the tin foil rolling process, it is required to reduce the sticking of the rolling stock and the roll. Due to the high requirements on the surface of tin foil, the rolling of tin foil to the last few rolls has been carried out by pressure, and the thickness of tin foil is mainly adjusted by rolling speed, tension and rolling oil. Lubricants require base oils with short carbon chains, low aromatics, low sulfur content, low viscosity, large heat capacity, strong cooling, cleaning, and diffusion capabilities; at the same time, it can also improve the lubricating performance of the process, increase the strength of the oil film in the deformation zone, and reduce friction coefficient; stable composition and performance; non-corrosive to metals and equipment; non-toxic, non-irritating odor.

Contents of the invention

The technical problem to be solved by the present invention is to provide a kind of short carbon chain, low aromatics, low sulfur content, low viscosity, large heat capacity, cooling, cleaning, strong diffusion ability, and at the same time, it can also improve the lubrication performance of the process and increase the deformation area. Oil film strength, stable composition and performance; non-corrosive to metals and equipment, non-toxic, non-irritating odor tin and its alloy foil cold rolling lubricant.

The present invention solves the above-mentioned technical problems with the following technical solutions: No. 5 industrial white oil is used as the base oil, combined with various composite additives, each component and its mass percentage are:

components Content (mass percentage) base oil 85%～90% antiwear agent 3.0%～5.0% oily agent 3.0%～5.0%

antioxidant 0.5%～1.0% Antifoaming agent 0.001%～0.003% anti-emulsifier 0.2%～0.5% friction modifier 3.0%～4.0%

The base oil is No. 5 industrial white oil.

The antiwear agent is phosphoramidate boride.

The oily agent is rapeseed oil.

The antioxidant is 2,6-di-tert-butyl-p-cresol.

The antifoaming agent is simethicone.

Anti-emulsifiers are polyether polymer compounds.

The friction modifier is molybdenum thiophosphate.

The tin and its alloy foil cold-rolling lubricant of the present invention has short carbon chains, low aromatics, low sulfur content, low viscosity, large heat capacity, strong cooling, cleaning, and diffusion capabilities; at the same time, it can also improve the lubricating performance of the process, increase The strength of the oil film in the deformation zone reduces the coefficient of friction; the composition and performance are stable; no corrosion to metals and equipment; no toxicity and no pungent smell.

Detailed ways

Example 1:

The following components are blended according to mass percentage:

components Content (mass percentage) No. 5 industrial white oil 85% Borophosphate 5.0% canola oil 4.8% 2,6-di-tert-butyl-p-cresol 0.9% Simethicone 0.003% Polyether polymer compound 0.297% Molybdenum thiophosphate 4.0%

The sum of the above components is 100%.

Example 2:

The following components are blended according to mass percentage:

components Content (mass percentage)

No. 5 industrial white oil 88% Borophosphate 4.0% canola oil 4.0% 2,6-di-tert-butyl-p-cresol 0.598% Simethicone 0.002% Polyether polymer compound 0.4% Molybdenum thiophosphate 3.0%

The sum of the above components is 100%.

Example 3:

The following components are blended according to mass percentage:

components Content (mass percentage) No. 5 industrial white oil 90% Borophosphate 3.0% canola oil 3.0% 2,6-di-tert-butyl-p-cresol 0.699% Simethicone 0.001% Polyether polymer compound 0.3% Molybdenum thiophosphate 3.0%

The sum of the above components is 100%.

The following are the main physical and chemical indicators of the product of Example 2:

project Quality Index Moisture, % trace Kinematic viscosity at 40°C mm ² /s 4.66 Flash point (opening) °C, 133 Mechanical impurities,% none Maximum non-jamming load (Pb), Kg 72 Pour point, °C, -8 water soluble acid or base none Corrosion test (copper sheet, 100°C, 3h), grade 1 viscosity index, 90

Claims (1)

1. tin and an alloy foil cold-rolling lubricant thereof, it is characterized in that oil based on employing No. 5 industrial white oils, coordinate multiple composite additive, its each component and mass percent thereof are:

Component Mass percentage content Base oil 85％～90％ Anti-wear agent 3.0％～5.0％ Oiliness improver 3.0％～5.0％ Oxidation inhibitor 0.5％～1.0％ Kilfoam 0.001％～0.003％ Non-emulsifying agent 0.2％～0.5％ Friction improver 3.0％～4.0％

Each component percentages summation is 100% above;

Wherein:

Anti-wear agent is boronation phosphamidon ester;

Oiliness improver is rapeseed oil;

Oxidation inhibitor is 2,6 ditertiary butyl p cresol;

Kilfoam is dimethyl silicone oil;

Non-emulsifying agent is polyethers macromolecular compound;

Friction improver is sulphur molybdenum phosphate.