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Lubricant composite, preparation method thereof and trace lubricant made of same

A lubricant composition and micro lubricant technology, applied in the field of lubrication, can solve the problems of affecting the health of operators, using a large amount of lubricant, wasting resources, etc., achieving remarkable environmental protection effects, good extreme pressure and anti-wear properties, The effect of saving usage

Active Publication Date: 2013-10-23
深圳市龙威科技发展有限公司
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional metal cutting process uses mineral oil or vegetable oil or cutting fluid for a large amount of shower lubrication. The amount of lubricant used is large, which not only wastes resources, but also causes huge pollution to the processing site and the environment, and also seriously affects the health of the operators. In order to solve these problems, some progress has been made in the research of micro-quantity lubrication technology recently. The micro-quantity lubrication technology has solved the above-mentioned problems such as large amount of lubricant used and serious pollution. There has been a relatively large breakthrough and it has been commercialized. However, although there has been some progress in the research on micro lubricants for ferrous metals, there are still certain problems in application, mainly because the lubrication and cooling problems cannot be solved well.
[0003] For example, the Chinese patent with the publication number CN101362981 discloses a stainless steel cutting fluid for a minimal lubrication system and its preparation method and application. It is prepared from 5% rust agent. When using it, add 1-5 times of water to completely emulsify it. It is a micro-cutting fluid for stainless steel processing. It is found through experiments that the surface finish of stainless steel cutting is better, and the amount of oil is also greatly reduced. However, since the processing fluid used is an emulsion, the oil injection system of the micro-quantity lubrication device is often blocked after a period of use, and the micro-quantity lubrication system has many faults, which causes workers to feel resistance when using it.
[0004] In addition, as disclosed in a Chinese patent with the publication number CN102936530, a micro-cutting fluid for gear processing is used: 40-70% of water-soluble polyether, 3-5% of sodium petroleum sulfonate, 1-3% of sodium chloride, thio Sodium sulfate 1-3%, sodium tripolyphosphate 1-3%, sodium benzoate 0.2-0.5%, dimethyl silicone oil 0.05%-0.1% and the balance of water processing micro-cutting fluid for gear processing, during processing, The amount of oil used is also greatly reduced, but after a period of processing, the workpiece and tool stick to chips seriously, which affects the service life of the tool

Method used

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  • Lubricant composite, preparation method thereof and trace lubricant made of same
  • Lubricant composite, preparation method thereof and trace lubricant made of same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 1# micro lubricant

[0034] Step 1: Weigh 61.83kg (1000mol) of boric acid and 213.79kg (3500mol) of monoethanolamine into the reaction kettle, stir and heat to 125°C, react for 3.5 hours, and discharge the water generated by the reaction under reduced pressure;

[0035] Step 2: Weigh 250.4kg (1250mol) of lauric acid and add it to the reaction kettle of step 1, stir and heat up to 175°C, react for 1.5 hours, and discharge the moisture generated by the reaction under reduced pressure;

[0036] Step 3: When step 2 decompresses and cools down to 105°C, add 147.29kg (28% of the total weight of raw materials in the above step) of polyethylene glycol (PEG400), keep stirring at constant temperature for 1.5 hours, and remove water under reduced pressure. A lubricant composition is prepared.

[0037] Step 4: Take 100kg of the lubricant composition prepared in Step 3, add 2.5kg of dipotassium hydrogen phosphate, 0.3kg of EDTA-2Na, 0.05kg of antifoaming agent simethicone, and 500k...

Embodiment 2

[0046] 2# micro lubricant

[0047] Step 1: Weigh 61.83kg (1000mol) of boric acid and 157.71kg (1500mol) of diethanolamine into the reaction kettle, stir and heat to 120°C, react for 3 hours and discharge the water generated by the reaction under reduced pressure;

[0048] Step 2: Weigh 426.72 kg (1500 mol) of stearic acid and add it to the reaction kettle of step 1, stir and heat up to 170° C., react for 2 hours, and discharge the moisture generated by the reaction under reduced pressure;

[0049] Step 3: When step 2 decompresses and cools down to 100°C, add 161.57kg (25% of the total weight of raw materials in the above step) polyethylene glycol (PEG200), keep stirring at constant temperature for 1.5 hours, and remove water under reduced pressure. A lubricant composition is prepared.

[0050] Step 4: Take 100kg of the lubricant composition prepared in step 3 and add a mixture of 1kg sodium hexametaphosphate and 1kg disodium hydrogen phosphate, 0.5kg EDTA-4Na, 0.01kg of antifoa...

Embodiment 3

[0052] 3# micro lubricant

[0053] Step 1: Weigh 61.83kg (1000mol) of boric acid and 179.03kg (1200mol) of triethanolamine into the reactor, stir and heat to 120°C, react for 4 hours and discharge the water generated by the reaction under reduced pressure;

[0054] Step 2: Weigh 282.47kg (1000mol) of oleic acid and add it to the reaction kettle of step 1, stir and heat up to 180°C, react for 1 hour, and discharge the water generated by the reaction under reduced pressure;

[0055] Step 3: When step 2 depressurizes and cools down to 110°C, add 157kg (30% of the total weight of raw materials in the above step) of polyethylene glycol (PEG600), keep stirring at constant temperature for 1 hour, and remove water under reduced pressure. A lubricant composition is prepared.

[0056] Step 4: Take 100kg of the lubricant composition prepared in Step 3, add 3kg of potassium hexametaphosphate, 0.1kg of antifoaming agent polyether-modified polysiloxane, and 1000kg of water, and stir and mi...

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Abstract

The invention provides a lubricant composite, a preparation method thereof and a method of preparing a lubricant made of the lubricant composite. The lubricant composite is characterized by being made of boric acid, hydramine, carboxylic acid and polyethylene glycol, wherein the mol ratio of boric acid to hydramine to carboxylic acid is 1:1 to 4: 1 to 1.5, and the weight of polyethylene glycol is 25 to 30% of the total weight of the reaction product of boric acid, hydramine and lauric acid. The trace lubricant prepared with the lubricant composite has the advantages of excellent lubricity, cooling ability, extreme pressure anti-wear property and good rust-proof ability. Just a little trace lubricant can satisfy the needs of lubricating, cooling, extreme pressure anti-wearing and rust preventing for the metal processing. The trace lubricant can be corporately used with a trace lubricant device, the usage amount of cutting fluid can be reduced by 90%, the oil spray system of the trace lubricant device will not be obstructed after being used for a long time, and has prominent effects on energy saving, discharge reducing and environmental protecting.

Description

technical field [0001] The invention belongs to the technical field of lubrication, and relates to a lubricant composition, a preparation method thereof and a micro-quantity lubricant prepared by the composition. Background technique [0002] The traditional metal cutting process uses mineral oil or vegetable oil or cutting fluid for a large amount of shower lubrication. The amount of lubricant used is large, which not only wastes resources, but also causes huge pollution to the processing site and the environment, and also seriously affects the health of the operators. In order to solve these problems, some progress has been made in the research of micro-quantity lubrication technology recently. The micro-quantity lubrication technology has solved the above-mentioned problems such as large amount of lubricant used and serious pollution. There has been a relatively large breakthrough and it has been commercialized. However, although there has been some progress in the resear...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10M173/02C10N40/22C10N30/12C10N30/06
Inventor 张乃庆吴启东
Owner 深圳市龙威科技发展有限公司
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