High-vacuum vacuum pump oil

A high-vacuum pump and vacuum technology, applied in the petroleum industry, lubricating compositions, etc., can solve the problems of limited improvement in anti-oxidation performance, affect the vacuum performance of vacuum oil, and cannot meet the needs of high-vacuum pump oil, and achieve extreme pressure and anti-wear performance The effect of high and excellent antioxidant properties

Inactive Publication Date: 2013-04-24
SUZHOU HUIFENG LUBRICANT
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Problems solved by technology

At present, some additives are added to the vacuum oil, which often affect the vacuum performance of the vacuum oil.
[0005] In addition, a vacuum pump oil is described in the patent publication No. CN1212997A, which has good thermal stability and produces a high ultimate vacuum, which helps to improve low-temperature startability, and specifically provides guarantees in winter and cold regions. It is also a vacuum pump oil that can quickly reach the stable driving s

Method used

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Examples

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Example Embodiment

[0033] Example 1

[0034] The mass percentage content of the vacuum base oil and various additives in the high vacuum pump oil is as follows:

[0035]

[0036] The preparation process of the high-vacuum pump oil can be: adding vacuum base oil, antioxidant, extreme pressure anti-wear agent, metal passivator, rust inhibitor in the mixing kettle, depressurizing, stirring for 60 minutes, and constant temperature at 60°C. After dissolving, add anti-foaming agent, anti-emulsifying agent, etc., and obtain high vacuum pump oil after stirring (see Table 1).

[0037] The high vacuum pump oil has a high ultimate vacuum degree (1×10 -4 kPa), excellent oxidation resistance and extrusion wear resistance. It is a high temperature resistant ashless high vacuum pump oil, especially suitable for more demanding application conditions such as high temperature, high pressure or high load working conditions. The high vacuum pump oil can maintain a good vacuum state under high temperature, high pressure o...

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Abstract

The invention discloses high-vacuum pump oil which is obtained by adding ash-free additive to compressed and distilled high-vacuum base oil. The high-vacuum pump oil comprises the following components in percentage by weight: 0.3%-1% of antioxidant, 0.02%-0.1% of metal passivator, 0.01%-3% of anti-wear reagent at extreme pressure, 0.02%-1% of antirust agent, 0.005%-0.05% of demulsifying compound and 0.05%-0.05% of anti-foaming agent, wherein the antioxidant comprises amine antioxidant and/or phenolic antioxidant; the amine antioxidant comprises high-polymer diphenylamine; the phenolic antioxidant comprises high-polymer mixed phenol. The high-vacuum pump oil disclosed by the invention has high-limit vacuum degree, and total limit pressure of 1*10<-4>kPa; and moreover, the vacuum oil is further provided with excellent oxidation resistance, high temperature resistance and anti-wear performance at extreme pressure without affecting the vacuum.

Description

technical field [0001] The invention particularly relates to a high-vacuum pump oil suitable for a high-vacuum system, which belongs to the field of vacuum technology. Background technique [0002] In recent years, my country's vacuum technology field has developed by leaps and bounds, and internationally renowned large companies have entered China one after another. For example, the vacuum obtaining equipment and vacuum complete sets of companies such as Germany Leybold, England Edward, France Alcatel, Japan Vacuum and other companies have entered the Chinese market in large quantities in the fields of electric vacuum industry, vacuum metallurgy, vacuum coating, distillation industry, food industry and aerospace technology. . The vacuum series oil used in conjunction with it has also flooded into the market. Therefore, after the introduction of multinational equipment, it is urgent to select suitable vacuum oil. [0003] With the development of vacuum technology, the requ...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10N30/10C10N30/06
Inventor 惠进德刘玉花胡瑶
Owner SUZHOU HUIFENG LUBRICANT
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