Corrosion inhibition type water-based total synthesis cutting fluid and application thereof

Abstract

The invention provides a corrosion inhibition type water-based fully-synthetic cutting fluid and application thereof. The water-based fully-synthetic cutting fluid comprises the following raw materials in percentage by mass: 2%-7% of boric acid, 0.5%-2.5% of tetrameric ricinoleate, 5%-15% of an antirust agent, 1%-3% of sodium dihydrogen phosphate, 5%-10% of citric acid, 2%-6% of a bactericide, 2%-6% of diethylene glycol, 3%-7% of a nonionic emulsifier, 0.1%-1% of a defoaming agent, 0.5%-1.5% of a settling agent, 0.5%-1.5% of isotridecanol ether phosphate and the balance of water. According to the water-based fully-synthetic cutting fluid, the water-based fully-synthetic cutting fluid is obtained through optimization, appropriate raw materials are compounded according to the specific dosage, and a product with the comprehensive performance meeting the requirement and especially with the excellent corrosion resistance and lubricating performance is formed.

Description

Technical Field

[0001] The invention belongs to the technical field of metal processing, in particular to the field of metal cutting fluids, and specifically relates to a corrosion-inhibiting water-based fully synthetic cutting fluid and an application thereof. Background Art

[0002] Cutting fluid is an industrial liquid used in the process of metal cutting, grinding and milling to cool and lubricate tools and workpieces. Cutting fluid is made of a scientific compound of a variety of super-functional additives. It has good cooling, lubrication, rust prevention, oil removal and cleaning functions, anti-corrosion functions, and is easy to dilute.

[0003] Cutting fluids are divided into two categories according to their chemical composition: non-water-soluble (oil-based) fluids and water-soluble (water-based) fluids. Water-based cutting fluids can be divided into emulsions, semi-synthetic cutting fluids and synthetic cutting fluids. Water-based fully synthetic cutting fluids are cutting fluids based on water as the main component. By adding a variety of functional additives, they can meet the various needs of lubrication, cooling, cleaning and rust prevention during metal processing.

[0004] As a multi-component product, the type and amount of raw materials in the cutting fluid will significantly affect the overall performance of the product. Summary of the invention

[0005] Based on this, the object of the present invention is to provide a corrosion-inhibiting water-based fully synthetic cutting fluid and its application. The corrosion-inhibiting water-based fully synthetic cutting fluid has both excellent corrosion resistance and lubrication performance.

[0006] To achieve the above objectives, the present invention adopts the following technical solutions.

[0007] The first aspect of the present invention provides an aqueous fully synthetic cutting fluid, comprising the following raw materials in mass fraction: 2% to 7% boric acid, 0.5% to 2.5% tetrapolyricinoleate, 5% to 15% rust inhibitor, 1% to 3% sodium dihydrogen phosphate, 5% to 10% citric acid, 2% to 6% bactericide, 2% to 6% diethylene glycol, 3% to 7% nonionic emulsifier, 0.1% to 1% defoamer, 0.5% to 1.5% sedimentation agent, 0.5% to 1.5% isotridecanol ether phosphate, and the balance is water.

[0008] In some embodiments, the aqueous fully synthetic cutting fluid includes the following raw materials in mass fraction: 4% to 6% boric acid, 1% to 2% tetrapolyricinoleate, 8% to 12% rust inhibitor, 1% to 3% sodium dihydrogen phosphate, 8% to 9% citric acid, 3% to 5% bactericide, 3% to 5% diethylene glycol, 4% to 5% nonionic emulsifier, 0.4% to 0.8% defoamer, 1% to 1.5% sedimentation agent, 0.5% to 1.5% isotridecanol ether phosphate, and the balance is water.

[0009] In some embodiments, the aqueous fully synthetic cutting fluid includes the following raw materials in mass fractions: 5% boric acid, 1.5% tetrapolyricinoleate, 10% rust inhibitor, 2% sodium dihydrogen phosphate, 7% citric acid, 4% bactericide, 4% diethylene glycol, 4.5% nonionic emulsifier, 0.5% defoamer, 1% sedimentation agent, 1% isotridecanol ether phosphate, and the balance is water.

[0010] In some embodiments, the rust inhibitor is selected from at least one of sodium carbonate and triethanolamine.

[0011] In some embodiments, the antiseptic is sodium benzoate.

[0012] In some embodiments, the nonionic emulsifier is selected from at least one of polyoxyethylene stearate, hexadecylphenol polyoxyethylene ether and dodecylbenzene polyoxyethylene ether.

[0013] In some embodiments, the defoaming agent is selected from at least one of diethylhexanol, isooctyl alcohol, isopentanol, castor oil polyoxyethylene ether and methyl silicone oil.

[0014] In some embodiments, the sedimentation agent is selected from at least one of polyacrylic acid amide and sodium acrylate.

[0015] The second aspect of the present invention provides the use of the aqueous fully synthetic cutting fluid as described above in metal processing.

[0016] The present invention obtains an aqueous fully synthetic cutting fluid through optimization. The aqueous fully synthetic cutting fluid is prepared by compounding suitable raw materials in specific amounts to form a product with comprehensive properties that meet requirements, especially having both excellent anti-corrosion and lubrication properties.

[0017] The water-based fully synthetic cutting fluid of the present invention is suitable for cutting processing of various metal materials (such as steel, cast iron, copper, aluminum, etc.), including turning, milling, drilling, grinding and other processes. When used, the water-based fully synthetic cutting fluid of the present invention is added to the circulation system of the cutting machine tool, and the cutting fluid is circulated by pumping. DETAILED DESCRIPTION

[0018] For ease of understanding of the present invention, the present invention will be described more fully below with reference to the embodiments, and preferred embodiments of the present invention are given below. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. The purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. It should be understood that the experimental methods in the following examples that do not specify specific conditions are usually based on conventional conditions or the conditions recommended by the manufacturer. The various commonly used reagents used in the embodiments are all commercially available products.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0020] The following is a description with reference to specific implementation methods.

[0021] Example 1

[0022] The present embodiment provides an aqueous fully synthetic cutting fluid, comprising the following raw materials in mass fractions: 5% boric acid, 1.5% tetrapolyricinoleate, 10% triethanolamine, 2% sodium dihydrogen phosphate, 7% citric acid, 4% sodium benzoate, 4% diethylene glycol, 4.5% polyoxyethylene stearate, 0.5% diethyl hexanol, 1% sodium acrylate, 1% isotridecanol ether phosphate, and the balance is water.

[0023] Example 2

[0024] The present embodiment provides an aqueous fully synthetic cutting fluid, comprising the following raw materials in mass fractions: 3% boric acid, 2% tetrapolyricinoleate, 12% triethanolamine, 1.5% sodium dihydrogen phosphate, 6% citric acid, 5% sodium benzoate, 3% diethylene glycol, 6% polyoxyethylene stearate, 0.2% diethyl hexanol, 0.5% sodium acrylate, 0.5% isotridecanol ether phosphate, and the balance is water.

[0025] Example 3

[0026] The present embodiment provides an aqueous fully synthetic cutting fluid, comprising the following raw materials in mass fractions: 6% boric acid, 2.5% tetrapolyricinoleate, 7% triethanolamine, 2.5% sodium dihydrogen phosphate, 9% citric acid, 2.5% sodium benzoate, 4% diethylene glycol, 6% polyoxyethylene stearate, 0.8% diethyl hexanol, 1.5% sodium acrylate, 1% isotridecanol ether phosphate, and the balance is water.

[0027] Example 4

[0028] The present embodiment provides an aqueous fully synthetic cutting fluid, comprising the following raw materials in mass fractions: 4% boric acid, 1.5% tetrapolyricinoleate, 8% triethanolamine, 1.5% sodium dihydrogen phosphate, 8% citric acid, 3% sodium benzoate, 3% diethylene glycol, 4% polyoxyethylene stearate, 0.5% diethyl hexanol, 1.2% sodium acrylate, 0.8% isotridecanol ether phosphate, and the balance is water.

[0029] Comparative Example 1

[0030] The comparative example provides an aqueous fully synthetic cutting fluid, comprising the following raw materials in mass fractions: 5% boric acid, 1.5% tetrapolyricinoleate, 10% triethanolamine, 2% sodium dihydrogen phosphate, 7% phosphoric acid, 4% sodium benzoate, 4% diethylene glycol, 4.5% polyoxyethylene stearate, 0.5% diethylhexanol, 1% sodium acrylate, 1% lauryl phosphate, and the balance is water.

[0031] The aqueous fully synthetic cutting fluids in the above embodiments and comparative examples were prepared by conventional methods in the art, and various performance tests (GB / T 6144-2010 standard) were performed.

[0032] After testing, the performance of the water-based fully synthetic cutting fluid of the present invention meets the national standards, and in particular has excellent corrosion resistance, as shown in Table 1.

[0033] Table 1

[0034]

[0035] In addition, simulated cutting experiments show that it also has excellent lubrication properties and can effectively alleviate tool wear.

[0036] Compared with Example 1, in the water-based fully synthetic cutting fluid of Comparative Example 1, phosphoric acid, which is also a tribasic acid, is used instead of citric acid, and isotridecanol ether phosphate, which is also a corrosion inhibitor, is used instead of lauryl phosphate, resulting in decreased corrosion resistance and lubrication performance of the product. This indicates that a good lubrication and corrosion resistance system is formed between the raw materials in the water-based fully synthetic cutting fluid formula of the present invention, and changes in the types of raw materials will lead to changes in system performance and reduce corrosion resistance and lubrication performance.

[0037] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A water-based fully synthetic cutting fluid, characterized in that: The invention comprises the following raw materials in mass fractions: 2%-7% of boric acid, 0.5%-2.5% of tetrapolyricinoleate, 5%-15% of rust inhibitor, 1%-3% of sodium dihydrogen phosphate, 5%-10% of citric acid, 2%-6% of bactericide, 2%-6% of diethylene glycol, 3%-7% of nonionic emulsifier, 0.1%-1% of defoamer, 0.5%-1.5% of sedimentation agent, 0.5%-1.5% of isotridecanol ether phosphate, and the balance is water.

2. The aqueous fully synthetic cutting fluid according to claim 1, characterized in that: The invention comprises the following raw materials in mass fractions: 4%-6% of boric acid, 1%-2% of tetrapolyricinoleate, 8%-12% of rust inhibitor, 1%-3% of sodium dihydrogen phosphate, 8%-9% of citric acid, 3%-5% of bactericide, 3%-5% of diethylene glycol, 4%-5% of nonionic emulsifier, 0.4%-0.8% of defoamer, 1%-1.5% of sedimentation agent, 0.5%-1.5% of isotridecanol ether phosphate, and the balance is water.

3. The aqueous fully synthetic cutting fluid according to claim 1, characterized in that: The invention comprises the following raw materials in mass fractions: 5% of boric acid, 1.5% of tetrapolyricinoleate, 10% of rust inhibitor, 2% of sodium dihydrogen phosphate, 7% of citric acid, 4% of bactericide, 4% of diethylene glycol, 4.5% of nonionic emulsifier, 0.5% of defoamer, 1% of sedimentation agent, 1% of isotridecanol ether phosphate, and the balance is water.

4. The aqueous fully synthetic cutting fluid according to any one of claims 1 to 3, characterized in that: The rust inhibitor is selected from at least one of sodium carbonate and triethanolamine.

5. The aqueous fully synthetic cutting fluid according to any one of claims 1 to 3, characterized in that: The bactericide is sodium benzoate.

6. The aqueous fully synthetic cutting fluid according to any one of claims 1 to 3, characterized in that: The nonionic emulsifier is selected from at least one of polyoxyethylene stearate, hexadecylphenol polyoxyethylene ether and dodecylbenzene polyoxyethylene ether.

7. The aqueous fully synthetic cutting fluid according to any one of claims 1 to 3, characterized in that: The defoaming agent is selected from at least one of diethylhexanol, isooctyl alcohol, isopentanol, castor oil polyoxyethylene ether and methyl silicone oil.

8. The aqueous fully synthetic cutting fluid according to any one of claims 1 to 3, characterized in that: The sedimentation agent is selected from at least one of polyacrylic acid amide and sodium acrylate.

9. Use of the aqueous fully synthetic cutting fluid according to any one of claims 1 to 8 in metal processing.

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