CN103450986B - Molybdenum and molybdenum alloy plate cold-rolling lubricant - Google Patents

Abstract

A molybdenum and molybdenum alloy plate cold-rolling lubricant, using No. 46 total loss system oil as the base oil, combined with a variety of composite additives, including anti-wear agents, oily agents, anti-oxidation and anti-corrosion agents, anti-foaming agents, detergents, Dispersant. It is characterized by high adsorption, diffusion and bearing capacity, which ensures the formation of a uniform continuous oil film between the roll and the rolled piece; reduces the friction coefficient during the rolling process, reduces the adhesion and coking between the rolled piece and the roll, and has a relatively Good lubricating, cooling, cleaning and thermo-oxidative stability properties.

Description

Molybdenum and molybdenum alloy plate cold rolling lubricant

technical field

The invention belongs to the field of cold-rolling lubricants for molybdenum and molybdenum alloy plates.

Background technique

Molybdenum and molybdenum alloys are widely used because of their many characteristics, such as high strength, low thermal expansion coefficient, excellent thermal and electrical conductivity, high corrosion resistance to molten glass, molten salt and molten metal, and Improves abrasion resistance of thin coatings.

The industrially produced molybdenum alloys include molybdenum-titanium-zirconium alloys, molybdenum-tungsten alloys and molybdenum-rare-earth alloys, and the most widely used ones are the first type. The main strengthening methods of molybdenum alloys are solid solution strengthening, precipitation strengthening and work hardening. Molybdenum alloy sheets, strips, foils, pipes, rods, wires and profiles can be produced through plastic processing, and their strength and low-temperature plasticity can also be improved. Molybdenum sheets are used to make radio equipment and X-ray equipment; molybdenum is resistant to high temperatures. Molybdenum cold-rolled sheets have relatively high requirements on product surface quality, but the work hardening phenomenon will be more serious. Therefore, it is particularly important to choose the appropriate total processing rate and pass processing rate. On the one hand, the product specification is small, and on the other hand, the deformation resistance of the material is relatively large, which can make full use of the metal plasticity and the capacity of the rolling mill. The total processing rate between two annealings can reach more than 50%; the pass processing rate is generally from large to small; tension It can ensure the smooth bite of the rolled piece, reduce the rolling pressure and increase the total processing rate and pass processing rate, and can control the thickness of the plate to eliminate defects such as waves and creasing during the process. During the rolling process, the tension should match the change of the rolling force, the change of the roll shape and the rolling speed. Therefore, the lubricant is required to have high adsorption, diffusion and bearing capacity to ensure the formation of a uniform continuous oil film between the roll and the rolled piece; reduce the friction coefficient during the rolling process, reduce the adhesion and coking between the rolled piece and the roll, And it has good lubricating, cooling, cleaning and thermal oxidation stability performance.

Contents of the invention

The technical problem to be solved by the present invention is to provide a kind of oil with high adsorption, diffusion and bearing capacity, which can form a continuous oil film between the roll and the rolled piece, reduce the adhesion and coking between the rolled piece and the roll, and have better lubrication, cooling, Molybdenum and molybdenum alloy plate cold rolling lubricant for cleaning and thermal oxidation stability.

The present invention solves the above-mentioned technical problems with the following technical solutions: No. 46 total loss system oil is used as the base oil, combined with various composite additives, and its components and mass percentages are:

components Content (mass percentage) base oil 70%～78% antiwear agent 4.0%～6.0% oily agent 6.0%～8.0% Antioxidant preservative 0.5%～1.2% Antifoaming agent 0.001%～0.01% detergent 5.0%～8.0% Dispersant 6.0%～8.0%

The base oil is No. 46 total loss system oil.

The anti-wear agent is a composite of 70% to 60% borated phosphate and 30% to 40% phosphorothioate in mass ratio.

The oily agent is a composite of 60%-50% hydrogenated castor oil and 40%-50% coconut oil alcohol in mass ratio.

Antioxidant preservative is bis-octyl basic zinc salt of thion.

The antifoaming agent is simethicone.

The detergent is composed of 60%-50% low-alkaline calcium petroleum sulfonate and 40%-50% high-alkaline petroleum calcium sulfonate by mass ratio.

The dispersant is composed of dienyl succinimide with a mass ratio of 40% to 50% and polyisobutylene succinimide with a mass ratio of 60% to 50%.

The molybdenum and molybdenum alloy plate cold rolling lubricant of the present invention has higher adsorption, diffusion and bearing capacity, ensures the formation of a layer of uniform continuous oil film between the roll and the rolling piece; reduces the friction coefficient in the rolling process, and reduces the Adhesion and coking with the roll, and has better lubricating, cooling, cleaning and thermal oxidation stability performance.

Detailed ways

Example 1:

The following components are blended according to mass percentage:

The sum of the above components is 100%.

Example 2:

The following components are blended according to mass percentage:

The sum of the above components is 100%.

Example 3:

The following components are blended according to mass percentage:

The sum of the above components is 100%.

The following are the main technical indicators of the product of embodiment 3:

project Quality Index Moisture, % not more than trace Kinematic viscosity at 40°C mm ² /s 49.5 Flash point (opening) °C, greater than 160 Mechanical impurities, % not greater than none Maximum non-jamming load (P _b ), Kg not less than 90 Pour point, ℃, not higher than -5 water soluble acid or base none Corrosion test (copper sheet, 100°C, 3h), grade 1 Viscosity index, not less than 90

Claims (1)

1. molybdenum and a molybdenum alloy sheet material cold-rolling lubricant, it is characterized in that oil based on employing No. 46 total loss system oil, coordinate multiple composite additive, its component and mass percent are:

Component Mass percentage content Base oil 70％～78％ Anti-wear agent 4.0％～6.0％ Oiliness improver 6.0％～8.0％ Antioxidant preservative 0.5％～1.2％ Kilfoam 0.001％～0.01％ Purification agent 5.0％～8.0％ Dispersion agent 6.0％～8.0％

Each component percentages summation is 100% above;

Wherein:

Anti-wear agent is the boronation phosphoric acid ester of mass ratio 70% ~ 60% and the thiophosphatephosphorothioate compound of 30% ~ 40%;

Oiliness improver is the hydrogenated castor oil of mass ratio 60% ~ 50% and the lauric alcohol compound of 40% ~ 50%;

Antioxidant preservative is the two octyl group basic zinc salt of sulphur phosphorus;

Kilfoam is dimethyl silicone oil;

Purification agent is the low alkali value calcium mahogany sulfonate of mass ratio 60% ~ 50% and the high base number calcium mahogany sulfonate compound of 40% ~ 50%;

Dispersion agent is the diene base succimide of mass ratio 40% ~ 50% and the polyisobutene succinimide compound of 60% ~ 50%.