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Hot rolling steel pipe expanding top lubricant

A technology for plug lubricants and steel pipes, applied in lubricating compositions, petroleum industry, base materials, etc., can solve problems such as difficult removal, flying dust, rolling scars, etc., and achieve improved production environment, increased production efficiency, and fast pipe expansion speed Effect

Inactive Publication Date: 2008-10-15
周永宽
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing hot-rolled steel pipe expansion head lubricants are all products with borax as the main component. During use, at a high temperature of 900-1200 ° C, borax softens into a liquid state, thereby achieving the purpose of lubrication, and its lubrication effect is poor , there are many adhesives on the top of the expanded pipe, and they are very hard and difficult to remove, so that the inner surface of the rolled steel pipe has defects such as rolling scars and pockmarks, and the qualified rate of finished products is low; Flying, causing serious environmental pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0007] Embodiment 1: Take 50 grams of 1-9mm respectively 2 Flake talc, 20g 1-9mm 2 flake graphite, 25 gram sodium bicarbonate and 5 gram trisodium phosphate, the mixture obtained after it is mixed homogeneously, is the hot-rolled steel pipe expansion head lubricant finished product of the present invention.

Embodiment 2

[0008] Embodiment 2: Take 60 grams of 1-9mm respectively 2 Flake talc, 5 grams 1-9mm 2 flake graphite, 20 gram sodium bicarbonate and 15 gram trisodium phosphate, the mixture obtained after it is mixed homogeneously, is the hot-rolled steel pipe expansion pipe plug lubricant finished product of the present invention.

Embodiment 3

[0009] Embodiment 3: Take 40 grams of 1-9mm respectively 2 Flake talc, 25g 1-9mm 2 flake graphite, 30 gram sodium bicarbonate and 5 gram trisodium phosphate, the mixture obtained after it is mixed homogeneously, is the hot-rolled steel pipe expanding pipe top lubricant finished product of the present invention.

[0010] The hot-rolled steel pipe expansion head lubricant prepared in the above examples has good lubricating effect during use, fast pipe expansion speed, smooth expansion head without sticky matter, smooth inner surface of the steel pipe after rolling, and good quality of the steel pipe. This is because the talc in the lubricant has stable performance and good lubricity at a high temperature of 900-1200°C, and sodium bicarbonate decomposes at a temperature of 270°C and loses carbon dioxide, and at a temperature of 318.4°C That is to say, it becomes liquid and wraps the graphite component in the lubricant to prevent the graphite from being oxidized at high temperatu...

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PUM

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Abstract

The present invention relates to technological lubricant technology, discloses one kind of lubricant, and is especially lubricant for hot rolled steel pipe expanding forcer. The lubricant consists of talc 40-60 wt%, graphite 5-30 wt%, sodium bicarbonate 20-40 wt%, trisodium phosphate 1-15 wt%. It has high lubricating effect, less forcer abrasion, long service life, high pipe expanding speed and other advantages.

Description

1. Technical field [0001] The invention discloses a lubricant, in particular a lubricant used for hot-rolled steel pipe expansion plugs, and belongs to the technical field of process lubricants. 2. Background technology [0002] The existing hot-rolled steel pipe expansion head lubricants are all products with borax as the main component. During use, at a high temperature of 900-1200 ° C, borax softens into a liquid state, thereby achieving the purpose of lubrication, and its lubrication effect is poor , there are many adhesives on the top of the expanded pipe, and they are very hard and difficult to remove, so that the inner surface of the rolled steel pipe has defects such as rolling scars and pockmarks, and the qualified rate of finished products is low; Flying, causing serious environmental pollution. 3. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art, and provide a hot-rolled ste...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/04C10M103/02C10N40/20
Inventor 周永宽
Owner 周永宽
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