Application of nano-copper in cutting fluid

Abstract

The invention provides application of nano-copper in cutting fluid, the nano-copper has an organic long carbon chain and can be self-dispersed, the surface of copper metal is coated with a long carbonchain organic matter, and the long chain organic matter is dialkyl dithiophosphoric acid (HDDP) and derivatives thereof. The nano-copper replaces functional additives including one or more of a preservative, an antirust agent, a bactericide, a pressure-resistant agent and a lubricant, and the technical problems that in the prior art, a cutting fluid cannot have efficient corrosion resistance, rust resistance, pressure resistance, lubrication and sterilization performance at the same time, the types and dosages of the added additives are large, the cost is high, and selection is limited are solved.

Description

technical field

[0001] The invention belongs to the technical field of nano-copper materials, and in particular relates to the application of nano-copper in cutting fluid. Background technique

[0002] Metal cutting fluid plays a very important role in the process of metal cutting and grinding. Selecting a suitable metal cutting fluid can reduce the cutting temperature by 60-150°C, reduce the surface roughness to grade 1-2, reduce the cutting resistance by 15-30%, and double the service life of the cutting tool and the grinding wheel. And it can wash away iron filings and ash from the cutting area, thereby improving production efficiency and product quality. Therefore, it is widely used in machining.

[0003] Metal cutting fluids can be divided into two categories: non-water-soluble cutting fluids and water-soluble cutting fluids. Usually it should have the following functions:

[0004] Cooling effect, in the process of workpiece cutting, can timely and rapidly reduce th...

Examples

preparation example Construction

[0048] Wherein, the preparation method with organic long carbon chain self-dispersing nano-copper comprises the following steps:

[0049] Step 1: Mix the copper source with water to obtain a copper source solution, place the copper source solution in a nitrogen, argon, or air atmosphere, and heat it to 40°C-75°C, preferably 50°C-65°C , further preferably at 55°C; the copper source aqueous solution is selected from any one or more of copper sulfate pentahydrate, copper chloride, copper bromide, copper acetate, copper nitrate, and copper acetylacetonate aqueous solutions.

[0050] Step 2: add reducing agent to the copper source solution after step 1 heating and react, obtain reduced copper source solution; Reducing agent is selected from hydrazine hydrate, sodium hypophosphite (NaH 2 PO 2 ), sodium borohydride, ascorbic acid (vitamin C) and sodium ascorbate in any one or more.

[0051] Step 3: Mix the dialkyl dithiophosphoric acid coating agent with an organic solvent to obtai...

Embodiment 1

[0064] This embodiment is a water-based aluminum alloy semi-synthetic cutting fluid, comprising the following components in mass percentage:

[0065]

[0066] Wherein, the preparation method of self-dispersing nano-copper with organic long carbon chains in this embodiment is as follows:

[0067] First prepare the HDDP coating agent: add carbon-based alcohol compounds and phosphorus pentasulfide in a 250mL single-necked flask, put a stopper on the bottle mouth of the single-necked flask, and connect the air guide tube, heat the reaction mixture to 80 ° C under stirring conditions, and Insulate for 3 hours, and the hydrogen sulfide gas released by the reaction is passed into the copper sulfate aqueous solution through the air duct. After the reaction is completed, the residual solid in the reaction system is removed to obtain a transparent light yellow liquid, which is the dialkyl dithiophosphoric acid coating agent. In this embodiment, the hydrogen sulfide gas produced by t...

Embodiment 2

[0089] This embodiment is a kind of water-based magnesium alloy semi-synthetic cutting fluid, including the following components in mass percentage:

[0090]

[0091]

[0092] In this embodiment, the preparation method of nano-copper with organic long carbon chain self-dispersion is consistent with that in Example 1, the differences are as follows:

[0093] In step 1, the carbon-based alcohol compound is a mixture of n-dodecyl alcohol of 65% by mole percent, isooctyl alcohol of 20% by mole percent, and ethanol of 15% by mole percent, with a total mass of 53.9g ( 350mmol), the consumption of phosphorus pentasulfide is 22.2g (100mmol), the mol ratio of mixed alcohol and phosphorus pentasulfide is 3.5:1, step 1 finally obtains dialkyl dithiophosphoric acid mixture.

[0094] In step 2, the copper source is copper sulfate pentahydrate, and the consumption is 37.4g (150mmol), and the water for dissolving copper sulfate pentahydrate is 200mL, and the reducing agent is 80% hydra...

technical field

[0001] The invention belongs to the technical field of nano-copper materials, and in particular relates to the application of nano-copper in cutting fluid. Background technique

[0002] Metal cutting fluid plays a very important role in the process of metal cutting and grinding. Selecting a suitable metal cutting fluid can reduce the cutting temperature by 60-150°C, reduce the surface roughness to grade 1-2, reduce the cutting resistance by 15-30%, and double the service life of the cutting tool and the grinding wheel. And it can wash away iron filings and ash from the cutting area, thereby improving production efficiency and product quality. Therefore, it is widely used in machining.

[0003] Metal cutting fluids can be divided into two categories: non-water-soluble cutting fluids and water-soluble cutting fluids. Usually it should have the following functions:

[0004] Cooling effect, in the process of workpiece cutting, can timely and rapidly reduce th...

Examples

preparation example Construction

[0048] Wherein, the preparation method with organic long carbon chain self-dispersing nano-copper comprises the following steps:

[0049] Step 1: Mix the copper source with water to obtain a copper source solution, place the copper source solution in a nitrogen, argon, or air atmosphere, and heat it to 40°C-75°C, preferably 50°C-65°C , further preferably at 55°C; the copper source aqueous solution is selected from any one or more of copper sulfate pentahydrate, copper chloride, copper bromide, copper acetate, copper nitrate, and copper acetylacetonate aqueous solutions.

[0050] Step 2: add reducing agent to the copper source solution after step 1 heating and react, obtain reduced copper source solution; Reducing agent is selected from hydrazine hydrate, sodium hypophosphite (NaH 2 PO 2 ), sodium borohydride, ascorbic acid (vitamin C) and sodium ascorbate in any one or more.

[0051] Step 3: Mix the dialkyl dithiophosphoric acid coating agent with an organic solvent to obtai...

Embodiment 1

[0064] This embodiment is a water-based aluminum alloy semi-synthetic cutting fluid, comprising the following components in mass percentage:

[0065]

[0066] Wherein, the preparation method of self-dispersing nano-copper with organic long carbon chains in this embodiment is as follows:

[0067] First prepare the HDDP coating agent: add carbon-based alcohol compounds and phosphorus pentasulfide in a 250mL single-necked flask, put a stopper on the bottle mouth of the single-necked flask, and connect the air guide tube, heat the reaction mixture to 80 ° C under stirring conditions, and Insulate for 3 hours, and the hydrogen sulfide gas released by the reaction is passed into the copper sulfate aqueous solution through the air duct. After the reaction is completed, the residual solid in the reaction system is removed to obtain a transparent light yellow liquid, which is the dialkyl dithiophosphoric acid coating agent. In this embodiment, the hydrogen sulfide gas produced by t...

Embodiment 2

[0089] This embodiment is a kind of water-based magnesium alloy semi-synthetic cutting fluid, including the following components in mass percentage:

[0090]

[0091]

[0092] In this embodiment, the preparation method of nano-copper with organic long carbon chain self-dispersion is consistent with that in Example 1, the differences are as follows:

[0093] In step 1, the carbon-based alcohol compound is a mixture of n-dodecyl alcohol of 65% by mole percent, isooctyl alcohol of 20% by mole percent, and ethanol of 15% by mole percent, with a total mass of 53.9g ( 350mmol), the consumption of phosphorus pentasulfide is 22.2g (100mmol), the mol ratio of mixed alcohol and phosphorus pentasulfide is 3.5:1, step 1 finally obtains dialkyl dithiophosphoric acid mixture.

[0094] In step 2, the copper source is copper sulfate pentahydrate, and the consumption is 37.4g (150mmol), and the water for dissolving copper sulfate pentahydrate is 200mL, and the reducing agent is 80% hydra...

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