Environment-friendly nano-planting agent used before coating for prestressed steel strand, and use process

A kind of prestressed steel strand, environmental protection technology, applied in the direction of metal material coating process, etc., can solve the problems of low efficiency in production process, waste water discharge and environmental pollution, etc., and achieve the effect of improving compactness and corrosion resistance

Pending Publication Date: 2021-06-04
合肥绿拓新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides an environment-friendly nano-phytochemical agent and its application process for pre-coating of prestressed steel strands, which solves the problem of fine-coating pre-treatment of existing prestressed steel strands in subdivided industries. Problems of process inefficiency and waste water discharge polluting the environment

Method used

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  • Environment-friendly nano-planting agent used before coating for prestressed steel strand, and use process
  • Environment-friendly nano-planting agent used before coating for prestressed steel strand, and use process
  • Environment-friendly nano-planting agent used before coating for prestressed steel strand, and use process

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Embodiment 1

[0045] Environmentally-friendly nano-phytochemicals used for prestressed steel strands before coating, each 1Kg of environmentally-friendly nano-phytochemicals are made from the following raw materials in weight ratio: 28g of vegetable acid mixture, 2g of chelating dispersant , Chelating film forming agent 3g, film forming corrosion inhibitor 1g, pH regulator 4g, pore sealing agent 0.3g, compound low foam surfactant 4g and deionized water balance.

[0046] In the embodiment of the present invention, the plant acid mixture is composed of 15g gluconic acid, 8g citric acid and 5g succinic acid, and the compound low-foaming surfactant is composed of 1g alkyl polyglucoside and 3g random polyether. Ionized water is deionized water with conductivity ≤5μS / cm.

[0047] The embodiment of the present invention also provides a preparation method of an environment-friendly nano-phytochemical agent for prestressed steel strands before coating, which specifically includes the following steps...

Embodiment 2

[0059] Environmentally-friendly nano-phytochemical agent used for prestressed steel strands before coating, each 1Kg of environmentally-friendly nano-phytochemical agent is made from the following raw materials in weight ratio: plant acid mixture 45g, chelating dispersant 5g , 6 g of chelating film forming agent, 3 g of film forming corrosion inhibitor, 8 g of pH regulator, 0.8 g of pore sealing agent, 12 g of composite low foaming surfactant and the balance of deionized water.

[0060] In the embodiment of the present invention, the plant acid mixture is composed of 20g gluconic acid, 15g citric acid and 10g succinic acid, and the compound low-foaming surfactant is composed of 6g alkyl polyglucoside and 6g random polyether. Ionized water is deionized water with conductivity ≤5μS / cm.

[0061] The embodiment of the present invention also provides a preparation method of an environment-friendly nano-phytochemical agent for prestressed steel strands before coating, which specific...

Embodiment 3

[0073] Environmentally-friendly nano-phytochemical agent used for prestressed steel strands before coating, each 1Kg of environmentally-friendly nano-phytochemical agent is made from the following raw materials in weight ratio: plant acid mixture 65g, chelating dispersant 8g , Chelating film forming agent 8g, film forming corrosion inhibitor 5g, pH regulator 12g, pore sealing agent 1.5g, compound type low foaming surfactant 18g and deionized water balance.

[0074] In the embodiment of the present invention, the plant acid mixture is composed of 30g gluconic acid, 20g citric acid and 15g succinic acid, and the compound low-foaming surfactant is composed of 10g alkyl polyglucoside and 8g random polyether. Ionized water is deionized water with conductivity ≤5μS / cm.

[0075] The embodiment of the present invention also provides a preparation method of an environment-friendly nano-phytochemical agent for prestressed steel strands before coating, which specifically includes the fol...

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Abstract

The invention discloses an environment-friendly nano-planting agent used before coating for a prestressed steel strand, and a use process. Every 1 Kg of the environment-friendly nano-planting agent is prepared from the following raw materials in proportion by weight: 28-65 g of plant acid mixed liquor, 2-8 g of a chelating dispersing agent, 3-10 g of a chelating film forming agent, 1-5 g of a film forming corrosion inhibitor, 4-12 g of a PH adjusting agent, 0.3-1.5 g of a pore sealing agent, 4-18 g of a compound low-foaming surfactant and the balance deionized water. The invention relates to the technical field of environment-friendly and energy-saving metal surface treatment agents. According to the environment-friendly nano-planting agent used before coating for the prestressed steel strand, and the use process, environment-friendly mixed plant weak acid and the chelating dispersing agent are added into a medicament, and under the dispersing performance of the dispersing agent, and by utilizing the weak etching property and different complexing constants of various plant acids to a high-temperature blue oxide layer on a metal surface, complexing etching is rapidly and comprehensively carried out on the oxide layer of the metal surface, so that a nano-scale adsorption film layer which is mutually embedded with a base material is formed, and the compactness and corrosion resistance of the film layer are improved.

Description

technical field [0001] The invention relates to the technical field of environment-friendly and energy-saving metal surface treatment agents, in particular to the surface treatment agent before coating in the field of subdivision of prestressed steel strands, in particular to an environment-friendly nano-phytochemical agent for prestressed steel strands before coating and use process. Background technique [0002] The prestressed steel strand is made of high-carbon steel wire rod, which is cold-drawn into steel wire after surface treatment, and then a certain number of steel wires are twisted into strands according to the structure of the steel strand, and then undergoes a stabilization process for stress relief. During this process, the wire has been pickled, wire-drawn, plied, tempered and water-cooled. The surface of the steel strand has already formed a blue or bright black oxide layer. This oxide layer is porous and loose, and it is easy to rust in a humid environment. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/68
CPCC23C22/68
Inventor 王海丽刘泽飞
Owner 合肥绿拓新材料科技有限公司
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