Preparation method for environment-friendly extreme-pressure cutting oil
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A cutting oil and extreme pressure technology, applied in the petroleum industry, lubricating compositions, etc., can solve the problems affecting the machining accuracy and efficiency of machine tools, shorten the service life of cutting oil, and the non-biodegradable mineral oil, etc., to eliminate metal corrosion of machine tools hidden dangers, prolong service life, improve oxidation stability and high temperature stability
Inactive Publication Date: 2017-04-12
深圳市宇田润滑剂有限公司
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Problems solved by technology
According to relevant literature reports, when burning waste cutting oil containing chlorinated paraffin, highly toxic dioxins will be generated, which will seriously pollute the environment
In recent years, more and more mechanical processing enterprises in my country have specified that they do not use cutting oils containing chlorides when purchasing metal processing oils; second, the oily additives used in many extreme pressure cutting oils are vegetable oils, and these oils are Contains an unsaturated and healthy chemical structure, which is easy to oxidize and deteriorate, resulting in an increase in the ac
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Example Embodiment
[0036] Example 1
[0037] (1) Preparation of ethanol modified rapeseed oil;
[0038] Add 250g of epoxy rapeseed oil into a three-necked beaker, add a certain amount of concentrated sulfuric acid and industrial alcohol while stirring, and stir the reaction at a temperature of 40-50℃. The three-necked bottle is equipped with an alcohol cooling reflux tube to react to oily epoxy The value is 0, which is the end of the reaction. The reaction product is subjected to alkaline washing, extraction, and desolventization under reduced pressure to obtain the final product modified rapeseed oil, which is used as a base oil and oily additive for later use.
[0039] (2) Add 10g of the above-mentioned synthetic modified rapeseed oil in a 50ML beaker, heat to 80℃, and add 0.2g of phenolic antioxidant 2.6-di-tert-butyl-p-cresol and 0.6g molecular weight under constant temperature stirring. 100000 polyisobutylene smoke suppressant, stir until it is completely dissolved, stop heating, then add 0.2g of...
Example Embodiment
[0042] Example 2
[0043] (1) and (2) The two preparation methods are the same as in Example 1.
[0044] (3) Product blending: add 75g of remaining base oil in a beaker, add 11g of dissolved base oil, antioxidant, smoke suppressant solution, 6g of high active sulfur extreme pressure additive, 5g of extreme pressure accelerator, phosphate ester 3g anti-wear extreme pressure agent, stir for 20 minutes,
[0045] (4) Quality inspection: same as Example 1.
Example Embodiment
[0046] Example 3
[0047] (2) 1) and 2) The two preparation methods are the same as in Example 1.
[0048] (3) Product blending: add 65g of remaining base oil in a beaker, add 11g of dissolved base oil, antioxidant, smoke suppressant solution, 4g of high active sulfur extreme pressure additive, 6g of extreme pressure accelerator, and phosphate ester anti Grind 4g extreme pressure agent, 6g extreme pressure accelerator, 4g phosphate antiwear extreme pressure agent, stir for 20 minutes.
[0049] (4) Quality inspection: same as Example 1.
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Abstract
The invention relates to a preparation method for environment-friendly extreme-pressure cutting oil. According to the invention, modified rape-seed oil is used for replacing mineral oil as base oil and replacing animal and plant oil as an oily agent for the extreme-pressure cutting oil, so the viscosity of the cutting oil is lowered, the flash point of the cutting oil is increased and oil smoke produced during metal cutting is reduced; since the modified rape-seed oil is used as the base oil, the occupancy volume of the oily agent is increased and lubricity of the cutting oil is substantially improved; a combination of the modified rape-seed oil and a small amount of phosphate ester can replace a conventional extreme-pressure agent, i.e., chlorinated paraffin; and after addition of a part of an extreme-pressure additive containing active sulfur, the extreme-pressure lubricity of the extreme-pressure cutting oil provided by the invention can reach the level of frequently used extreme-pressure cutting oil containing sulfur, phosphorus and chlorine extreme-pressure agent in the prior art. The extreme-pressure cutting oil provided by the invention is biodegradable due to usage of the modified rape-seed oil as the base oil, does not contain the chlorinated paraffin extreme-pressure agent posing great pollution to the environment, has low viscosity and a high flash point, reduces smog pollution produced by cutting oil; and the extreme-pressure cutting oil is endowed with antioxidation performance and prolonged in an oil change period, and is environment-friendly.
Description
technical field [0001] The invention relates to a metal cutting oil, in particular to a preparation method of an environment-friendly extreme pressure cutting oil. Background technique [0002] Extreme pressure cutting oil is based on mineral oil and added with oily additives and extreme pressure additives. It has good extreme pressure lubricity and can meet the harsh processes of cutting, broaching and tapping of stainless steel, heat-resistant alloys and other difficult-to-cut materials. Cutting oil required for machining cooling and lubrication. At present, the extreme pressure cutting oils used in the machinery industry generally have the following three problems: First, the current extreme pressure cutting oils generally use chlorinated paraffin as one of the extreme pressure additives of extreme pressure cutting oils. Chlorinated paraffin is very successful in extreme pressure cutting due to its good extreme pressure performance and low price. In recent years, intern...
Claims
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Application Information
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