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A kind of water-based high-temperature lubricant and preparation method thereof

A high-temperature lubricant and water-based technology, applied in the field of water-based high-temperature lubricant and its preparation, can solve the problems of poor dispersion stability, harmful to workers' health, short storage time, etc., and achieve excellent high-temperature lubrication effect and good dispersion stability Effect

Inactive Publication Date: 2018-03-16
NANHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because graphite black particles are small and easy to spread, they often pollute the environment and are harmful to the health of workers. In the case of increasingly stringent environmental protection requirements, their use will be gradually restricted. For the above reasons, the industry has begun to study some new lubricants. lubricants instead of graphite lubricants, such as water-based lubricants containing talc powder (the price of talc powder is much cheaper than graphite powder, and talc powder is not as easy to diffuse as graphite powder, so talc powder lubricants are compared with graphite lubricants. , its pollution to the environment is less, and the production cost is also lower), but due to the natural hydrophobicity of talcum powder, its dispersion stability in aqueous solution is very poor, so there is only one talcum powder lubricant on the market. , two, and these lubricants all have the following defects: the storage time is short, and stratification will appear after a few days

Method used

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  • A kind of water-based high-temperature lubricant and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment approach

[0014] As an embodiment of the present invention, a water-based high-temperature lubricant, the weight ratio of its components is: hydroxypropyl methylcellulose: 0.6%-1.0%, fumed silica: 0.3%-1.0%, Boric acid: 1.0%-2.0%, sodium carbonate: 0.5%-1.5%, dispersant: 0.5%-1.5%, defoamer: 0.05%-0.1%, preservative: 0.2%-1.0%, talcum powder: 8% -15%, polyethylene glycol: 3%-10%, the balance is water.

[0015] The method for preparing above-mentioned water-based high-temperature lubricant comprises the following steps:

[0016] Step 1: Prepare each component according to the weight ratio, and put each component in the corresponding container, take a part of the water from the water-filled container and add it to the reaction kettle, and then mix it according to the weight ratio Add hydroxypropyl methylcellulose into the reaction kettle, and continue stirring for 0.5h after the hydroxypropyl methylcellulose is completely dissolved;

[0017] Step 2, adding the fumed silica, boric acid, ...

Embodiment 1

[0021] First, prepare the water-based high-temperature lubricant of the present invention according to the aforementioned steps, wherein the weight ratio of each component is: hydroxypropyl methylcellulose: 0.6%, fumed silica: 1.0%, boric acid: 2.0%, sodium carbonate : 1.5%, dispersant: 0.5%, defoamer: 0.05%, preservative: 0.2%, talcum powder: 8%, polyethylene glycol: 10%, and the balance is water.

[0022] Thereafter, the water-based high-temperature lubricant obtained in Example 1 was divided into two parts, one part was used to test its dispersion stability, and the specific test method of dispersion stability was: the water-based high-temperature lubricant was placed in a transparent airtight container, Observe and record its delamination every day; another one uses the ring upsetting method to test its high temperature friction coefficient. The specific test results of the above two tests are shown in the appendix figure 1 The test data statistics table.

Embodiment 2

[0024] Compared with Example 1, Embodiment 2 only has a change in the weight ratio of each component, and the other contents are exactly the same. For simple description, the same contents will not be repeated here. The water-based high-temperature lubricants of Embodiment 2 The weight ratio of components is as follows:

[0025] Hydroxypropyl methylcellulose: 1.0%, fumed silica: 0.3%, boric acid: 1.0%, sodium carbonate: 0.5%, dispersant: 1.5%, defoamer: 0.1%, preservative: 1.0%, talc Powder: 15%, polyethylene glycol: 3%, and the balance is water.

[0026] Thereafter, as in Example 1, the water-based high-temperature lubricant obtained in this embodiment 2 is divided into two parts, one part is used to test its dispersion stability, and the specific test method of dispersion stability is: the water-based high-temperature lubricant is left standing in In a transparent airtight container, observe and record its delamination every day; another one uses the ring upsetting method t...

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Abstract

The invention provides a water-based high-temperature lubricant and a preparation method thereof, which relate to the technical field of steel pipe processing lubricants. The weight ratio of its components is: hydroxypropyl methylcellulose: 0.6%-1.0%, fumed silica: 0.3%‑1.0%, boric acid: 1.0%‑2.0%, sodium carbonate: 0.5%‑1.5%, dispersant: 0.5%‑1.5%, defoamer: 0.05%‑0.1%, preservative: 0.2%‑1.0% , Talc powder: 8%-15%, polyethylene glycol: 3%-10%, and the balance is water. The water-based high-temperature lubricant containing talc powder has good dispersion stability and can be placed for a long time without delamination. In addition, the lubricating performance of the water-based high-temperature lubricant is very close to that of the existing water-based graphite lubricant, and it also has excellent Excellent high temperature lubricating effect, can be used to replace the existing water-based graphite lubricant.

Description

technical field [0001] The invention relates to the technical field of steel pipe processing lubricants, in particular to a water-based high-temperature lubricant and a preparation method thereof. Background technique [0002] During the production process of hot-rolled seamless steel pipe, the metal is deformed in the annular space surrounded by the roll and the mandrel, and there is a large interaction force between the mandrel and the metal. In order to improve the quality of the inner surface of the steel pipe, prolong the service life of the mandrel, reduce the rolling current and reduce energy consumption, the mandrel surface must be evenly coated with lubricant before processing. The mandrel lubricant can promote uniform metal deformation and reduce rolling. The restraining force and mandrel limiting force can reduce the uneven thickness of the transverse wall of the steel pipe, improve the surface quality of the steel pipe, increase the heat insulation performance, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M173/02C10N30/04C10N30/06
Inventor 王延飞刘静
Owner NANHUA UNIV