A Phosphate Antioxidant Used in Hot Rolled Seamless Steel Tube

An anti-oxidant and seamless steel pipe technology, which is applied in metal rolling, metal rolling, metal processing equipment, etc., can solve problems such as failure to meet environmental protection and safety requirements, achieve good anti-oxidation performance, prevent oxidation, and improve the quality of the inner wall Effect

Active Publication Date: 2017-06-16
HUNAN JINHUA SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this borax antioxidant has many advantages, it also has the following defects in its actual use: 1, as people continue to improve the degree of attention to environmental protection, especially European and American countries have more and more stringent requirements for environmental protection, the above-mentioned borax Antioxidants can no longer meet the environmental safety requirements of European and American countries due to boron content

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] The phosphate-type antioxidant used in the hot-rolled seamless steel pipe of this embodiment is composed of the following components: 25% by weight of sodium stearate, 25% by weight of sodium sulfate, and 10% by weight Talc, 25% by weight of glass powder, 15% by weight of sodium tripolyphosphate. The above-mentioned components are mixed with each other and evenly stirred to obtain the phosphate type antioxidant.

Embodiment 2

[0014] Compared with Example 1, Example 2 only has a change in the weight ratio of each component. The other content is completely the same. For simplicity, the same content will not be repeated here. Example 2 is used for hot rolling seamless The weight ratio of each component of the phosphate antioxidant of the steel pipe is as follows:

[0015] 20% by weight of sodium stearate, 35% by weight of sodium sulfate, 5% by weight of talc, 25% by weight of glass powder, 15% by weight of sodium tripolyphosphate.

Embodiment 3

[0017] Example 3 is compared with Examples 1 and 2, except that the weight ratio of each component is changed, and the other contents are exactly the same. The weight ratio of each component of Example 3 is as follows:

[0018] 20% by weight of sodium stearate, 25% by weight of sodium sulfate, 5% by weight of talc, 35% by weight of glass powder, 15% by weight of sodium tripolyphosphate.

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PUM

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Abstract

The invention provides a phosphate type antioxidant for a hot-rolling seamless steel pipe, and relates to the technical field of antioxidants for steel pipe processing. The phosphate type antioxidant comprises the following components in percentage by weight: 20-25wt% of sodium stearate, 25-35wt% of anhydrous sodium sulphate, 5-10wt% of talcum powder, 25-35wt% of glass powder, and 15-25wt% of sodium tripolyphosphate. The phosphate type antioxidant is environmental friendly and meets the requirements of Europe and America on environmental protection and safety. With the adoption of the phosphate type antioxidant for the hot-rolling seamless steel pipe, the quality of the inner wall of the steel pipe can be obviously improved, and the service life of a mandril can be greatly prolonged.

Description

Technical field [0001] The invention relates to the technical field of antioxidants for steel pipe processing, in particular to a phosphate type antioxidant for hot-rolled seamless steel pipes. Background technique [0002] When hot-rolling seamless steel pipes, iron oxide scale will appear on the inner surface of the steel pipe. During the rolling process, the iron oxide scale will cause deep scratches on the inner wall of the steel pipe, causing the inner surface of the steel pipe to be rough and reducing the quality. Wear speed. For the above reasons, the industry usually sprays antioxidants inside steel pipes to prevent the generation of scale. The Chinese invention patent with patent number "200910148130.9" discloses a borax antioxidant for hot-rolled seamless steel pipes. It can well prevent the formation of iron oxide scale on the inner surface of the steel pipe. In addition, the borax antioxidant has strong reducing properties and can react with the formed iron oxide to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B45/04
CPCB21B45/04
Inventor 唐鹏飞
Owner HUNAN JINHUA SCI & TECH GRP
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