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Strong acid metal surface phosphor passivation and anti-rust agent and its production method

A metal surface, strong acid technology, applied in the direction of metal material coating process, etc., can solve the problems of no conversion into phosphorus passivation film layer, no degreasing and descaling, phosphating passivation, etc., to improve product quality, reduce Effects of energy consumption and reduction of environmental pollution

Inactive Publication Date: 2009-08-12
陈历泽
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This product has no effect of degreasing, descaling, phosphating and passivation, and it has not been transformed into a phosphorus passivation film layer

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] 1. Discussion on the mechanism of degreasing, descaling and phosphating passivation antirust agent for strong acidic metal surface

[0012] 1. Study the mechanism of oil emulsification and dispersion, iron oxide scale conversion into phosphorus passivation; use organic acid and active agent combined with inorganic acid to emulsify oil. Phosphoric acid is in contact with iron oxide scale to produce a chemical reaction and convert it into an iron phosphate film. The phosphorus passivation route is mainly based on covalent bonding, that is, chemical adsorption, and ionic bonding, or physical adsorption, is the secondary phase combination; finely formulated additives, the main The effect is that phosphorus passivation occurs on the surface of metal ions and continues to maintain phosphorus passivation to achieve the purpose of anti-corrosion. The key to the process is to control the complex reaction, combine the formula and determine the process method.

[0013] 2. The use ...

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PUM

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Abstract

Strong acid metal surface phosphorus passivation rust inhibitor and production method, the raw material components and weight parts are: phosphoric acid 22-66 parts, additives 8-12 parts, acid iron phosphate manganese 15-45 parts, and also contain metal salts Such as zinc nitrate, aluminum, nickel or nickel sulfate, calcium sulfate or calcium chlorate, silicon dioxide, accounting for 12-22 parts, OP or cleaning agent 2-3 parts, 14-60 parts of purified water. The production method of this product is: 1) First put distilled water or soft water into the reaction kettle; 2) Sprinkle acid iron manganese phosphate, stir and dissolve, and then add zinc nitrate, nickel nitrate or nickel sulfate, silicon dioxide, chlorine Calcium, etc. are added one by one, and the reaction becomes semi-solid paste; 3) Phosphoric acid is added dropwise, and then additives, OP or cleaning agent are added, and the finished product is obtained when it reacts into a clear liquid. This product is odorless when immersed, sprayed, and brushed under 120℃ or at room temperature. It is fully degreasing and descaling. It can be directly sprayed with paint and coatings, and the binding force is above the first grade. It completely replaces the processes of pickling, sandblasting, spraying and shot peening, saving energy by more than 80%, reducing costs by more than 70%, no three waste emissions, safe and non-toxic , the product has a wide range of uses.

Description

technical field [0001] The invention relates to a strong-acid metal surface phosphorus passivation antirust agent, which is used for metal surface to replace pickling, sandblasting, spraying, shot peening and grinding processes, and completely descales and degreases. The invention also relates to a process for the production of this product. Background technique [0002] All kinds of metal materials (plates, wires) no matter whether they are hot-rolled or cold-rolled before deep processing, all kinds of metal products must be coated with paint, electroplating, hot-dip galvanizing, spraying, aluminum spraying, cold drawing, etc. Pre-treatment process, namely degreasing, descaling, phosphating anti-rust, hot-dip galvanizing, tin plating, chrome plating, nickel plating, steel plating, gold plating, silver plating, aluminum spraying, and plastic spraying, are currently adopted at home and abroad for metal surface pretreatment. The treatment process is pickling with sulfuric aci...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C22/07C23G1/02C23G5/00
Inventor 陈历泽陈代胜
Owner 陈历泽
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