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Isostatic press oil for sinter molding of rare earth magnet steel, and preparation method of isostatic press oil

A technology of sintering molding and isostatic pressing, which is applied in the petroleum industry, lubricating compositions, etc., can solve problems such as low viscosity index, dark oil color, and poor fluidity, and achieve low viscosity, fine and soft material quality, and good fluidity Effect

Inactive Publication Date: 2016-10-12
浙江模德科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most users use anti-wear hydraulic oil and kerosene as substitutes. This type of anti-wear hydraulic oil is generally 80-90 mineral oil, 1-3 anti-wear compound, 0.5 antioxidant, and 0.03-0.3 defoaming The traditional isostatic press oil is dark in color, strong in taste, high in viscosity, poor in fluidity, and low in viscosity index. The processed product is more difficult to clean in the subsequent sequence. , additives, etc. (color, smell)
Other anti-wear hydraulic oils are not special oils for isostatic pressure, and there are no advantages that isostatic pressure oils are suitable for isostatic presses

Method used

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  • Isostatic press oil for sinter molding of rare earth magnet steel, and preparation method of isostatic press oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of isostatic pressure oil used for sintering and molding rare earth magnets, which is composed of the following raw materials in parts by weight:

[0022] White mineral oil 95, hydrogenated base oil 4, 8-hydroxyquinoline 0.02, antiwear agent 3, antifoaming agent 0.03, antioxidant 0.4, triisopropyl borate 1, flow aid 2-3, boric acid 0.07, Ethyl orthosilicate 0.2, sp-80 0.06.

[0023] Wherein, the antiwear agent is zinc dialkyldithiophosphate. The anti-foaming agent is organosiloxane. The antioxidant is 2,6-di-tert-butyl-p-cresol.

[0024] Wherein, the flow aid is composed of the following raw materials in parts by weight: 7.5 parts by weight of triethanolamine oleate, 0.2 parts by ammonium molybdate, 2 parts by weight of potassium stearate soap, and 0.6 parts by weight of ethanol;

[0025] The preparation method of described flow aid comprises the following steps:

[0026] Mix the above-mentioned absolute ethanol and triethanolamine oleate, stir evenly, add po...

Embodiment 2

[0033] A kind of isostatic pressure oil used for sintering and molding rare earth magnets, which is composed of the following raw materials in parts by weight:

[0034] White mineral oil 90, hydrogenated base oil 6, 8-hydroxyquinoline 0.01, antiwear agent 5, antifoaming agent 0.01, antioxidant 0.6, triisopropyl borate 2, flow aid 2-3, boric acid 0.04, Ethyl orthosilicate 0.1, sp-80 0.04.

[0035] Wherein, the antiwear agent is zinc dialkyldithiophosphate. The anti-foaming agent is organosiloxane. The antioxidant is 2,6-di-tert-butyl-p-cresol.

[0036] Wherein, the flow aid is composed of the following raw materials in parts by weight: 8 triethanolamine oleate, 0.1 ammonium molybdate, 3 potassium stearate soap, and 1 absolute ethanol;

[0037] The preparation method of described flow aid comprises the following steps:

[0038] Mix the above-mentioned absolute ethanol and triethanolamine oleate, stir evenly, add potassium stearate soap, put it in a water bath at 60°C, keep i...

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Abstract

The invention discloses isostatic press oil for sinter molding of rare earth magnet steel. The isostatic press oil is colorless and odorless transparent liquid and has the characteristics of being low in viscosity, good in fluidity, high in viscosity index and the like; the isostatic press oil is capable of evenly passing pressure, and products processed by using the isostatic press oil are easy to clean; a flow promoting agent adopting triethanolamine oleate as a main material is added into the isostatic press oil, and the flow promoting agent has good dispersity and fluidity, is fine, smooth and soft in material texture and has good stability, so that the viscosity of the oil is well reduced, and the fluidity of the oil is improved. Furthermore, gel prepared by taking ethyl orthosilicate as a silicon source is added into the isostatic press oil, and the gel is capable of effectively promoting the dispersity of all raw materials and further adjusting the viscosity of the finished product oil at the same time, so that the stability of the finished product oil is improved.

Description

technical field [0001] The invention mainly relates to the field of isostatic pressure oil, in particular to an isostatic pressure oil used for sintering and forming rare earth magnet steel and a preparation method thereof. Background technique [0002] Since the oil used for isostatic presses on the market is relatively small, there is no corresponding special oil for isostatic presses. Most users use anti-wear hydraulic oil and kerosene as substitutes. This type of anti-wear hydraulic oil is generally 80-90 mineral oil, 1-3 anti-wear compound, 0.5 antioxidant, and 0.03-0.3 defoaming The traditional isostatic press oil is dark in color, strong in taste, high in viscosity, poor in fluidity, and low in viscosity index. The processed product is more difficult to clean in the subsequent sequence. , additives, etc. (color, smell). Other anti-wear hydraulic oils are not special oils for isostatic pressure, and do not have some advantages of isostatic pressure oils suitable for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N30/04
CPCC10M169/04C10M169/045C10M2201/082C10M2201/087C10M2207/021C10M2207/023C10M2207/126C10M2207/289C10M2215/042C10M2215/221C10M2223/045C10M2227/02C10M2227/061C10M2229/02C10M2290/02C10M2290/04C10N2030/04C10N2010/02C10N2010/04
Inventor 赵小军
Owner 浙江模德科技有限公司
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