Nano-complexing film-forming agent

A technology for synthesizing film and film-forming agent, applied in the direction of metal material coating process, etc., can solve problems such as secondary rust, and achieve the effect of saving production cost, short processing time, and low water quality requirements

Inactive Publication Date: 2018-06-01
CHANGZHOU JUNHE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The slag produced by silane treatment and vitrification treatment is much less than that of phosphating treatment, which is an improvement, but after use, i

Method used

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  • Nano-complexing film-forming agent
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A nano-complex membrane agent, which is composed of the following weight composition and components: fluorozirconic acid 15%, vinyl silane 6%, nano silica 0.5%, fluoroboric acid 1%, cerium nitrate 0.8%, citric acid 0.5% , Molybdate 0.2%, the balance is water.

[0031] Add 800 ml of water, stir well to dissolve and mix uniformly, add appropriate amount of water and mix uniformly to prepare 1 liter of film-forming agent.

[0032] Dilute the above-mentioned film-forming agent with water, prepare it with a volume ratio of film-forming agent to water 1:50, and adjust the pH to 4-4.8 with nitric acid.

[0033] When using the film-forming agent described in this embodiment, the workpiece is first subjected to degreasing and rust-removing treatment according to the above process, and then the film-forming agent of this embodiment is treated at room temperature for 3 to 5 minutes to form a layer on the surface of the workpiece. Complex film, and finally rinse with water. After drying...

Embodiment 2

[0041] A new type of nano-complex membrane agent, which is composed of the following weight composition and components: 5% fluorotitanic acid, 5% zirconium fluoride, 10% methacryloxysilane, 0.2% nano-titanium dioxide, 0.3% water-based graphene , Metatitanic acid 0.5%, fluorosilicic acid 1.2%, lanthanum nitrate 0.3%, cerium sulfate 0.3%, tartaric acid 0.1%, tannic acid 0.1%, corrosion inhibitor tungstate 0.2%, urotropine 0.1%, the rest The amount is water.

[0042] Add 800 ml of water, stir well to dissolve and mix well, add appropriate amount of water and mix well to prepare 1 liter of film-forming agent.

[0043] Dilute the above-mentioned film-forming agent with water, prepare the film-forming agent and water in a volume ratio of 1:30, and adjust the pH to 3.5-4.5 with sodium carbonate.

[0044] When using the film-forming agent described in this embodiment, the workpiece is first subjected to degreasing and rust-removing treatment according to the above process, and then washed w...

Embodiment 3

[0046] A new type of nano-complex membrane agent, which is composed of the following weight composition and components: zirconium oxychloride 2%, fluorozirconate 3%, aminosilane 3%, titanyl sulfate 0.1%, boric acid 0.2%, sodium silicate 0.3%, lanthanum sulfate 1%, ethylenediaminetetraacetic acid 0.4%, phytic acid 0.4%, benzotriazole 0.6%, and the balance is water.

[0047] Add 800 ml of water, stir well to dissolve and mix well, add appropriate amount of water and mix well to prepare 1 liter of film-forming agent.

[0048] Dilute the above-mentioned film-forming agent with water, prepare it with the volume ratio of film-forming agent to water 1:40, and adjust the pH to 4.5-5.0 with ammonia water.

[0049] When using the film-forming agent described in this embodiment, the workpiece is first subjected to degreasing and rust-removing treatment according to the above process, and then washed with water, and then the film-forming agent described in this embodiment is treated at room temp...

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Abstract

The invention relates to the technical field of metal surface treatment, and especially relates to a nano-complexing film-forming agent, which includes: 5-15% of a film-forming agent, 3-10% of a silane coupling agent, 0.1-1% of a pore-sealant, 0.5-2% of a film-forming aid, 0.6-1% of an oxidant, 0.2-0.8% of a complexing agent, 0.1-0.6% of a corrosion inhibitor, and the balanced being deionized water. The nano-complexing film-forming agent can greatly improve the corrosion resistance of the surface of metal; when an acid-pickled work piece is treated with the film-forming agent, surface corrosion resistance and combining force and salt fog time in post-treatment can reach the effects of normal silane and ceramization treatment. In addition, a problem of secondary rust which very liable to occur in an acid-pickled work piece after the silane and ceramization treatment can be solved.

Description

Technical field [0001] The invention relates to the technical field of metal surface treatment, in particular to a nano-complex membrane agent. Background technique [0002] Before painting or spraying, steel, aluminum and other metals need to be pre-treated in order to improve the adhesion and rust resistance of the coating and the metal. The industry is called pre-painting. [0003] The pre-coating treatment has gone through hundreds of years of history. Today, phosphating technology is the most mature technology. So far, there is no other technology that can truly achieve the processing quality of phosphating technology. However, the phosphating solution used in phosphating technology contains phosphorus and heavy metals, and the waste water produced by phosphating treatment is particularly large. It is very difficult to truly meet the wastewater discharge standards. It has caused huge pollution to the environment for many years, and it is still continuing to pollute. Obviously ...

Claims

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Application Information

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IPC IPC(8): C23C22/34
CPCC23C22/34C23C2222/20
Inventor 梁会文
Owner CHANGZHOU JUNHE TECH
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