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A water-based lubricant for graphite finish rolling

A technology of lubricant and graphite, applied in lubricating compositions, additives, petroleum industry, etc., can solve the problems of surrounding environment pollution, high production cost, influence on the appearance of pipes, etc. Environmentally friendly effects

Active Publication Date: 2018-02-09
HUNAN JINHUA SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the lubricant used in the finishing rolling of cold-drawn pipes is usually finishing oil. The surface of the pipe rolled with finishing oil is smooth and bright, and the rust resistance is also good. However, because a layer of oil is usually adhered to the surface If this layer of oil is removed, the steel pipe will be covered with a lot of dust during storage and transportation, and the appearance of the pipe will be greatly affected. Therefore, the industry usually needs to degrease and prevent the pipe after the steel pipe rolling is completed Rust treatment, the production cost of the enterprise is relatively high, and at the same time, a certain amount of industrial waste liquid will be produced when the steel pipe is degreased and rust-proofed, and the above waste liquid will also pollute the surrounding environment when discharged

Method used

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  • A water-based lubricant for graphite finish rolling

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Effect test

Embodiment approach

[0011] As an embodiment of the present invention, a water-based graphite finish rolling lubricant, the weight ratio of its components is: 1100-1300 mesh graphite powder: 12-18%, oleic acid triethanolamine: 8-13.5%, Sodium petroleum sulfonate: 9-12%, zinc stearate: 1.5-4%, gelatin: 0.2-0.7%, ethylene glycol: 3.5-6.5%, sandan oil: 0.75-1.5%, and the balance is water.

[0012] The method for preparing above-mentioned water-based graphite finishing lubricant may further comprise the steps:

[0013] The first step: under normal temperature and pressure, add water to the reaction kettle according to the above weight ratio.

[0014] Step 2: While stirring, add graphite powder of 1100-1300 mesh, triethanolamine oleate, sodium petroleum sulfonate, zinc stearate, and gelatin to the reaction kettle in turn according to the above weight ratio, and continue stirring for about 2 hours until The above components are uniformly dispersed in the aqueous solution.

[0015] The third step is to...

Embodiment 1

[0018] First, under normal temperature and pressure, add water to the reactor according to the following weight ratio, and then add 1200 mesh graphite powder, triethanolamine oleate, petroleum sulfonic acid to the reactor according to the following weight ratio while stirring Sodium, zinc stearate, gelatin, continue to stir for about 2 hours, until the above components are evenly dispersed in the aqueous solution; then, while continuing to stir, add ethylene glycol and sandan oil into the reaction kettle according to the above weight ratio , After ethylene glycol and sandan oil are uniformly dispersed in the aqueous solution, the water-based graphite finish rolling lubricant of the present invention can be obtained.

[0019] The weight proportion of each component is:

[0020] 1200 mesh graphite powder: 12%, triethanolamine oleate: 8%, sodium petroleum sulfonate: 9%, zinc stearate: 1.5%, gelatin: 0.7%, ethylene glycol: 6.5%, sandan oil: 1.5% , and the balance is water.

[00...

Embodiment 2

[0024] Embodiment 2 is compared with embodiment 1, only the weight ratio of each component is changed, and other content is exactly the same, and for simple expression, identical content is not repeated here, the water-based graphite finish rolling lubrication of embodiment 2 The weight proportion of each component of agent is as follows:

[0025] 1200 mesh graphite powder: 18%, triethanolamine oleate: 13.5%, sodium petroleum sulfonate: 12%, zinc stearate: 4%, gelatin: 0.2%, ethylene glycol: 3.5%, sandan oil: 0.75% , and the balance is water.

[0026] After this, the water-based graphite finish rolling lubricant that this embodiment 2 obtains is divided into four parts, and a part tests its dynamic viscosity under 25 degrees centigrade, normal pressure condition, and a part is under 25 degrees centigrade, normal pressure condition on the four-ball friction testing machine Test its average coefficient of friction, and the other is used to test its antirust performance (the spe...

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Abstract

The invention provides a water-based graphite finishing lubricant, which relates to the technical field of steel pipe processing lubricants. The weight ratio of its components is: 1100-1300 mesh graphite powder: 12-18%, oleic acid triethanolamine: 8-13.5 %, sodium petroleum sulfonate: 9‑12%, zinc stearate: 1.5‑4%, gelatin: 0.2‑0.7%, ethylene glycol: 3.5‑6.5%, sandan oil: 0.75‑1.5%, and the balance is water. The surface of the steel pipe produced with this water-based graphite finish rolling lubricant is very refreshing and clean, and will not adhere to a layer of oil. There is no need for degreasing and antirust treatment of the steel pipe, thereby saving the degreasing and antirust processes. Reduce the production cost of the enterprise; at the same time, since the steel pipe produced with the water-based graphite finish rolling lubricant does not need degreasing and antirust treatment, it will not produce degreasing and antirust treatment waste liquid, which reduces the steel pipe to a certain extent. The amount of waste liquid generated in the production process is conducive to environmental protection.

Description

technical field [0001] The invention relates to the technical field of steel pipe processing lubricants, in particular to a water-based graphite finish rolling lubricant. Background technique [0002] If you want to obtain seamless steel pipes with smaller size and better quality, you must use cold rolling, cold drawing or a combination of the two. During cold rolling, the steel pipe is rolled in an annular pass formed by a circular hole groove with variable cross-section and a stationary conical plug. [0003] At present, the lubricant used in the finishing rolling of cold-drawn pipes is usually finishing oil. The surface of the pipe rolled with finishing oil is smooth and bright, and the rust resistance is also good. However, because a layer of oil is usually adhered to the surface If this layer of oil is removed, the steel pipe will be stained with a lot of dust during storage and transportation, and the appearance of the pipe will be greatly affected. Therefore, the ind...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M173/00C10M125/02C10N40/20
Inventor 许峻豪
Owner HUNAN JINHUA SCI & TECH GRP