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Metal cutting solution of green semi-synthesis double-base oil and preparation method thereof

A technology of metal cutting fluid and base oil, applied in the direction of base material, petroleum industry, lubricating composition, etc., can solve problems such as adverse environmental impact and poor biodegradability, and achieve the effect of improving biodegradability

Inactive Publication Date: 2009-09-16
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a green and environment-friendly metal cutting fluid in order to overcome the problem that the metal cutting fluid in the prior art has poor biodegradability and stays in water and soil for a long time, which will cause adverse effects on the environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The green semi-synthetic dual-base oil metal cutting fluid is composed of the following weight components:

[0036] Paraffin-based mineral oil 20%

[0037] Dibasic acid diester 5%

[0038] Sodium petroleum sulfonate 9%

[0039] Polyethylene oxide 5%

[0040] Sodium dodecanesulfonate 5%

[0041] Oleic acid borate 5%o

[0042] Methyl silicone oil 2%

[0043] Benzotriazole 0.5%

[0044] Water 48.5%

[0045] The preparation method of green semi-synthetic dual-base oil metal cutting fluid includes the following steps:

[0046] (1) Configuration of dual base oil system

[0047] Heat the paraffin-based mineral oil at about 50°C, add the dibasic acid diester, and stir at 50r / min for 30min until the mixture is uniform, that is, a dual base oil system is formed;

[0048] (2) Configuration of water phase system

[0049] Add sodium dodecanesulfonate, oleic acid borate, methyl silicone oil, and benzotriazole to the water and stir the various additives to dissolve until a uniform and sta...

Embodiment 2

[0053] The green semi-synthetic dual-base oil metal cutting fluid is composed of the following weight components:

[0054] Paraffin-based mineral oil 15%

[0055] Polyol ester 5%

[0056] Sodium petroleum sulfonate 5%

[0057] Polyethylene oxide 5%

[0058] Ammonium dodecylsulfonate 5%

[0059] Water-soluble borate 8%

[0060] Methyl silicone oil 2%

[0061] Benzotriazole 1%

[0062] Water 54%

[0063] The preparation method of green semi-synthetic dual-base oil metal cutting fluid includes the following steps:

[0064] (1) Configuration of dual base oil system

[0065] Heat the paraffin-based mineral oil at about 50°C, add the polyol ester, and stir at 50r / min for 30min until the mixture is uniform, forming a dual base oil system;

[0066] (2) Configuration of water phase system

[0067] Add amine dodecanesulfonate, water-soluble borate, methyl silicone oil, and benzotriazole to the water and stir the various additives to dissolve until a uniform and stable solution is for...

Embodiment 3

[0071] The green semi-synthetic dual-base oil metal cutting fluid is composed of the following weight components:

[0072] Paraffin-based mineral oil 5%

[0073] Polyol ester 15%

[0074] Sodium dodecyl fatty acid 5%

[0075] Spencer 8%

[0076] Monoethanolamine borate 10%

[0077] Fatty alcohol polyoxyethylene phosphate 5%

[0078] Oleic acid triethanolamine 3%

[0079] Isothiazolinone 1%

[0080] Water 48%

[0081] The preparation method of green semi-synthetic dual-base oil metal cutting fluid includes the following steps:

[0082] (1) Configuration of dual base oil system

[0083] Heat the paraffin-based mineral oil at about 50°C, add the polyol ester, and stir at 50r / min for 30min until the mixture is uniform, forming a dual base oil system;

[0084] (2) Configuration of water phase system

[0085] Add boric acid monoethanolamine, fatty alcohol polyoxyethylene phosphate, oleic acid triethanolamine, and isothiazolinone to the water and stir the various additives to dissolve un...

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Abstract

The invention relates to a metal cutting solution of green semi-synthesis double-base oil, which comprises the following components in percentage by weight: 0 to 30 percent of mineral oil, 0 to 30 percent of synthetic ester, 5 to 10 percent of anionic surfactant, 5 to 10 percent of non-ionic surfactant, 5 to 15 percent of anti-rust agent, 0 to 15 percent of extreme pressure agent, 1 to 3 percent of de-foaming agent and 0 to 2 percent of bactericide, and the balance being water. A preparation method for the metal cutting solution comprises the following steps: firstly, heating the mineral oil to about 50 DEG C, adding the synthetic ester into the mineral oil, and stirring the mixture evenly to form a double-base oil system; and then adding the anti-rust agent, the extreme pressure agent, the de-foaming agent and the bactericide into the water respectively, and using the anionic surfactant and the non-ionic surfactant to regulate the system to balance so as to form the metal cutting solution of the green semi-synthesis double-base oil. Because the synthetic ester is added in the preparation process to form the double-base oil system, the biodegradability, oxidative stability and flash point are improved; and the method meets the requirement of environmental protection, and is applicable to cutting, grinding and processing various mechanical parts.

Description

Technical field [0001] The invention belongs to the technical field of metal cutting processing, and more specifically relates to a green semi-synthetic dual-base oil metal cutting fluid and a preparation method thereof. Background technique [0002] Metal cutting fluid is an important supporting material for cutting. The selection of suitable metal cutting fluid in metal cutting processing can play a good role in lubrication, cooling, cleaning and rust prevention, thereby improving tool durability, ensuring processing quality and processing accuracy, improving production efficiency and reducing costs. It can be divided into two categories: oil-based metal cutting fluid and water-based metal cutting fluid. Water-based metal cutting fluid has developed rapidly due to its incomparable cooling characteristics and low cost. It is divided into emulsified oil, semi-synthetic liquid and fully synthetic liquid. Semi-synthetic cutting fluid, also known as microemulsion, contains less oil ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10M111/02C10M111/04C10M177/00C10N40/22
Inventor 周业韩生周祖新
Owner SHANGHAI INST OF TECH
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