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Deformed steel bar rust preventing agent and preparation method thereof

A manufacturing method and technology of anti-rust agent, applied in the anti-rust field of rebar, can solve problems such as easy rusting of rebar rolled steel, and achieve the effect of accelerating the speed of phosphating and film formation

Inactive Publication Date: 2012-04-11
上海久安水质稳定剂厂
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  • Abstract
  • Description
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Problems solved by technology

[0007] The object of the present invention is to provide a kind of antirust agent for threaded steel and its manufacture method, which mainly solves the problem that the existing threaded steel is easy to rust after water cooling, and can generate phosphating layer and Fe on the surface of the threaded steel. 3 o 4 Mainly oxide skin, through secondary water penetration to improve the corrosion resistance of rebar in the atmosphere and improve the corrosion resistance of rebar during storage and transportation

Method used

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  • Deformed steel bar rust preventing agent and preparation method thereof

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Effect test

Embodiment 1

[0015] Embodiment 1: 10% zinc dihydrogen phosphate and 50% solvent are miscible in the reactor, and then add 2% ammonium persulfate; after the solution is still for 45 minutes, add 2% ammonium chloride to the solution several times; Add 6% ammonium nitrate, then add 30% solvent, mix for 30 minutes, and discharge the material statically to generate rebar rust inhibitor. The solvent is distilled water; the above ratios are percentages by weight.

Embodiment 2

[0016] Embodiment 2: 5% zinc dihydrogen phosphate and 50% solvent are miscible in the reactor, and then add 1% ammonium persulfate; after the solution is still for 45 minutes, add 1% ammonium chloride to the solution several times; Add 3% ammonium nitrate, then add 40% solvent, mix for 30 minutes, and discharge the material statically to generate rebar rust inhibitor. The solvent is distilled water; the above ratios are percentages by weight.

Embodiment 3

[0017] Embodiment 3: 15% zinc dihydrogen phosphate and 50% solvent are miscible in the reactor, and then add 3% ammonium persulfate; after the solution is still for 45 minutes, add 3% ammonium chloride to the solution several times; Add 10% ammonium nitrate, then add 19% solvent, mix for 30 minutes, and discharge the material statically to generate rebar rust inhibitor. The solvent is distilled water; the above ratios are percentages by weight.

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Abstract

The invention relates to the technical field of deformed steel bar rust prevention, in particular to a deformed steel bar rust preventing agent and a preparation method thereof, which are mainly applied to secondary quenching after rolling of a deformed steel bar and molding of a graphite sealing piece. The deformed steel bar rust preventing agent consists of the following components in percentage by weight: 5-15 percent of zinc dihydrogen phosphate, 3-10 percent of ammonium nitrate, 1-3 percent of ammonium chloride, 1-3 percent of ammonium persulfate and the balance of solvent, wherein the solvent is distilled water. According to the invention, the problem that the conventional deformed steel bar becomes rusty easily after steel rolling and water cooling is mainly solved, and an oxide scale which has a certain thickness and mainly contains Fe3O4 can be generated on the surface of the deformed steel bar; and secondary water crossing is performed, so that the corrosion resistance of the deformed steel bar in the atmospheric air is enhanced, and the corrosion resistance in the storing and transporting processes of the deformed steel bar is enhanced.

Description

technical field [0001] The invention relates to the technical field of anti-rust technology for threaded steel, and is mainly applied to secondary quenching of threaded steel after steel rolling, in particular to an antirust agent for threaded steel and a manufacturing method thereof. Background technique [0002] Rebar is the most widely used steel product in the construction industry. my country's rebar production and consumption in 2010 were close to 160 million tons, accounting for about 1 / 6 of the total steel production. The mechanical properties of rebar directly determine the safety and durability of building structures. At present, developed countries have adopted 400MPaIII grade rebar, while my country still mainly uses 335MPaII grade rebar. [0003] In order to improve my country's construction safety standards, the Ministry of Construction has clearly stipulated that high-strength Grade III rebars should gradually replace II grade rebars. Compared with micro-all...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/13
Inventor 付庆王海博孙晓珑郝玉凤杨荣
Owner 上海久安水质稳定剂厂
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