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Special aqueous grinding fluid for hard alloy and preparation method thereof

A technology of cemented carbide and grinding fluid, which is applied in the preparation of special water-based grinding fluid for cemented carbide grinding and in the field of water-based grinding fluid for cemented carbide grinding, which can solve the problem of reducing the mechanical resistance of cemented carbide parts. Problems such as impact force and service life, health hazards of operators, and shedding of tungsten carbide particles on the surface can achieve the effects of inhibiting the growth of bacteria, less environmental pollution, and excellent lubricity

Inactive Publication Date: 2021-06-04
ZIGONG CEMENTED CARBIDE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cobalt is used as a cemented carbide binder, and its leaching will greatly reduce the mechanical impact resistance and service life of cemented carbide parts. In addition, cobalt leaching will inevitably cause the tungsten carbide particles on the surface to fall off, and further pits will be formed during processing and other macro defects, resulting in a large number of scrap or rework
At the same time, if the cobalt content in the grinding waste liquid is too high, it is easy to pollute the environment and cause harm to the health of the operators.

Method used

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  • Special aqueous grinding fluid for hard alloy and preparation method thereof
  • Special aqueous grinding fluid for hard alloy and preparation method thereof
  • Special aqueous grinding fluid for hard alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A special water-based grinding fluid for cemented carbide, its proportioning is shown in Table 1

[0030] Table 1 Distribution ratio of each group

[0031]

[0032]

[0033] A kind of preparation method of aqueous grinding fluid special for cemented carbide, its concrete steps are as follows:

[0034] a) Weigh the corresponding materials according to the above materials and mass percentage.

[0035] b) Add polyethylene glycol-400, fatty alcohol polyoxyethylene ether, triethanolamine borate, lauric acid, sodium oleate soap, benzotriazole, silicone defoamer and water into the reaction kettle Stir and mix at 40°C for 30 minutes to 1 hour to obtain mixed component A;

[0036] c) When the temperature of the mixing component A in the reaction kettle drops to room temperature (20-30°C), add sodium hydroxide and anionic polyacrylamide to the mixing component A and stir and mix for 30min-1h to obtain the product.

[0037] Apply the above products to the immersion experi...

Embodiment 2

[0040] A special water-based grinding fluid for cemented carbide, its proportion is shown in Table 2

[0041] Table 2 Distribution ratio of each group

[0042]

[0043]

[0044] A kind of preparation method of aqueous grinding fluid special for cemented carbide, its concrete steps are as follows:

[0045] a) Weigh the corresponding materials according to the above materials and mass percentage.

[0046] b) Add polyethylene glycol-600, fatty alcohol polyoxyethylene ether, triethanolamine borate, lauric acid, sodium oleate soap, methyl benzotriazole, silicone defoamer and water into the reactor Stir and mix at 80°C for 30min to 1h to obtain mixed component A;

[0047] c) When the temperature of the mixing component A in the reaction kettle drops to room temperature (20-30°C), add sodium hydroxide and anionic polyacrylamide to the mixing component A and stir and mix for 30min-1h to obtain the product.

[0048] Apply the above product to the immersion test of the YG6 bran...

Embodiment 3

[0050] A special water-based grinding fluid for cemented carbide, its proportion is shown in Table 3

[0051] Table 3 distribution ratio of each group

[0052]

[0053]

[0054] A kind of preparation method of aqueous grinding fluid special for cemented carbide, its concrete steps are as follows:

[0055] a) Weigh the corresponding materials according to the above materials and mass percentage.

[0056] b) Add polyethylene glycol-400, alkylphenol polyoxyethylene ether, triethanolamine borate, lauric acid, sodium oleate soap, methyl benzotriazole, silicone defoamer and water to react Stir and mix in the kettle at 60°C for 30min to 1h to obtain mixed component A;

[0057] c) When the temperature of the mixing component A in the reaction kettle drops to room temperature (20-30°C), add sodium hydroxide and anionic polyacrylamide to the mixing component A and stir and mix for 30min-1h to obtain the product.

[0058] Apply the above product to the immersion test of the YG6 br...

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Abstract

The invention relates to a water-based grinding fluid special for hard alloy. The water-based grinding fluid comprises the following components: 13.0-18.0% of polyethylene glycol-400 or polyethylene glycol-600; 5.0 to 8.0 percent of fatty alcohol polyoxyethylene ether or alkylphenol polyoxyethylene ether; 6.0 to 10.0 percent of triethanolamine borate; 6.0 to 9.0 percent of dodecanedioic acid; 4.0 to 6.0 percent of sodium oleate soap; 0.25 to 0.5 percent of benzotriazole or methyl benzotriazole; 3.0 to 5.0 percent of sodium hydroxide; 1.0 to 2.0 percent of an organic silicon defoaming agent; 0.1 to 0.5 percent of anionic polyacrylamide; and the balance of water. The invention also relates to a preparation method of the grinding fluid. The grinding fluid is green and environment-friendly water-based grinding fluid, has excellent lubricity, cooling property, anti-rust property and cleaning property, can effectively inhibit leaching of cobalt in hard alloy, and is long in service life.

Description

technical field [0001] The invention belongs to the field of cemented carbide grinding, and in particular relates to a special water-based grinding fluid for cemented carbide grinding. The invention also relates to a preparation method of a special water-based grinding fluid for cemented carbide grinding. Background technique [0002] WC-Co cemented carbide is widely used in cutting tools, mining tools, impact-resistant molds and wear-resistant parts because of its excellent hardness and wear resistance, good fracture strength and toughness. When grinding cemented carbide materials, in order to reduce the grinding temperature, improve the grinding efficiency, and prolong the service life of the grinding wheel, oily and water-based grinding fluids are widely used in the production process. Oil-based grinding fluid has good lubricity and anti-rust performance, but the cooling effect is not good. It contains nitrite, sodium carbonate, mineral oil and other components, which dam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M173/02C10N30/06C10N30/18C10N40/22
CPCC10M173/02C10M2209/104C10M2227/061C10M2207/127C10M2207/126C10M2215/223C10M2201/062C10M2217/044
Inventor 董凯林曾伟韩亚刚时凯华
Owner ZIGONG CEMENTED CARBIDE CORP
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