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Preparation method of water dispersible nano copper cooling lubricant for cold rolling

A lubricant and nano-copper technology, applied in the field of lubricants, can solve the problems of loss of lubrication performance, high cost of oil-soluble lubricants, rancid emulsion and other problems

Inactive Publication Date: 2011-01-19
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, due to the biological decomposition caused by the action of bacteria, after a certain period of time, the emulsion will become rancid and deteriorate, lose its lubricating effect and be scrapped
In addition, the cost of oil-soluble lubricants is very expensive, and the additional cost of degreasing work after strip cold rolling is also very high

Method used

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  • Preparation method of water dispersible nano copper cooling lubricant for cold rolling
  • Preparation method of water dispersible nano copper cooling lubricant for cold rolling
  • Preparation method of water dispersible nano copper cooling lubricant for cold rolling

Examples

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preparation example Construction

[0034] A kind of preparation method of water-dispersed nano-copper cooling lubricant of the present invention comprises following preparation steps:

[0035] Step 1: Preparation of Surfactant

[0036] (A) in 10ml of absolute ethanol C 2 h 5 Add 7-12g of oleate into OH, and mix evenly to obtain the first mixed liquid;

[0037] The oleate can be sodium oleate C 17 h 33 COONa, potassium oleate C 17 h 33 COOK, barium oleate [(C 17 h 33 COO) 2 Ba], calcium oleate [(C 17 h 33 COO) 2 Ca];

[0038] (B) Add 1.5-4 g of alkali corresponding to oleate into 10 ml of deionized water, and mix evenly to obtain a second mixed solution;

[0039] Described alkali can be sodium hydroxide NaOH, potassium hydroxide KOH, barium hydroxide Ba(OH) 2 , calcium hydroxide Ca(OH) 2 ;

[0040] (C) After heating the second mixed solution to 60-80°C, add the first mixed solution; under the condition of stirring speed of 200-800r / min, continue to heat to 110-200°C, and at a temperature of 110-2...

Embodiment 1

[0056] Step 1: Preparation of Surfactant

[0057] (A) Add 9.4g of sodium oleate in 10ml of absolute ethanol, mix well to obtain the first mixed solution;

[0058] (B) Add 2g of sodium hydroxide to 10ml of deionized water, and mix evenly to obtain the second mixed solution;

[0059] (C) After heating the second mixed solution to 80°C, add the first mixed solution; under the condition of stirring speed of 600r / min, continue to heat to 150°C, and keep the temperature at 150°C for 5 years; Cool to 30°C under the conditions of 5°C / min and stirring speed of 1200r / min to prepare the surfactant;

[0060] Step 2: Preparation of Dispersant Solution

[0061] Add 2.1g of PEG-400 into 10ml of deionized water, mix well to obtain a dispersant solution;

[0062] In this embodiment, when the dispersant is selected from the dispersant solution prepared by any type of PEG, there is no difference in performance.

[0063] The third step: preparation of nano-copper cooling lubricant

[0064] (...

Embodiment 2

[0072] Step 1: Preparation of Surfactant

[0073] (A) Add 11.7g of Potassium Oleate in 10ml of absolute ethanol, mix well to obtain the first mixed solution;

[0074] (B) Add 4g of potassium hydroxide to 10ml of deionized water, mix well to obtain the second mixed solution;

[0075] (C) After heating the second mixed solution to 60°C, add the first mixed solution; continue heating to 200°C at a stirring speed of 200r / min, and keep the temperature at 200°C for 10min; then cool down at a rate of Cool to 25°C under the conditions of 8°C / min and a stirring speed of 1500r / min to prepare the surfactant;

[0076] Step 2: Preparation of Dispersant Solution

[0077] Add 3.7g of PVA-20000 into 10ml of deionized water, mix well to get a dispersant solution;

[0078] In this embodiment, when the dispersant is selected from the dispersant solution prepared by any type of PVA, there is no difference in performance.

[0079] The third step: preparation of nano-copper cooling lubricant

...

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Abstract

The invention discloses a preparation method of a water dispersible nano copper cooling lubricant for cold rolling. In the lubricant, oleate is used as a surfactant, divalent copper salt is used as a copper element, and hydrazine hydrate is used as a reducing agent. Nano copper is selected as a main raw material of the lubricant, and meanwhile, certain dispersant and surfactant are added to prepare the water dispersible nano copper cooling lubricant applicable to a cold rolling process. The invention aims at improving the lubricity of cold rolling, a friction surface can be primed and repaired to a certain extent through products of a friction chemical reaction, and thus, rolled steel has self repairing action.

Description

technical field [0001] The present invention relates to a kind of lubricant that is suitable for the cold rolling of strip steel, more particularly, refers to a kind of water-dispersible nano-copper cold-rolling lubricant, and the preparation of the water-dispersible nano-copper cold-rolling lubricant agent method. Background technique [0002] During the rolling process of cold-rolled strip steel, many different types of defects will inevitably occur, which seriously affect the performance of strip steel products. [0003] Rolling emulsion plays an important role in reducing rolling pressure and mill power, and improving the surface quality of rolled pieces. However, traditional rolling emulsion contains additives such as sulfur, chlorine and phosphorus, and its waste liquid has a high content of organic matter, which is harmful to the environment. pollution is more serious. At present, domestic rolling emulsion waste liquid is generally discharged after demulsification a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M177/00C10M161/00C10N40/24C10N30/12
Inventor 胡学寅王景明崔旺江雷
Owner BEIHANG UNIV
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