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Method for using single component low-temperature zinc-based phosphatization liquid

A zinc-based phosphating solution, a single-component technology, applied in the coating process of metal materials, etc., can solve the problems of reducing work efficiency and cannot guarantee the effect of phosphating, and achieves convenient adjustment and use, which is beneficial to the health of workers and the environment. Excellent protection and corrosion resistance

Inactive Publication Date: 2011-05-11
缪克忠
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  • Claims
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AI Technical Summary

Problems solved by technology

However, due to the problem of the treatment process, if the time in the phosphating process is too fast, the effect of phosphating cannot be guaranteed, but if it takes too much time, the work efficiency will be reduced

Method used

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Examples

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Embodiment Construction

[0008] The method for using the single-component low-temperature zinc-based phosphating solution described in the embodiment of the present invention includes: degreasing-water washing-rust removal-water washing-conditioning-phosphating-water washing-drying-coating, the described conditioning Firstly, the surface is frosted with abrasive materials, then the abrasive debris on the surface is blown off by a fan, and then the debris on the surface is further adsorbed by a magnet, and finally the surface is heated by a hot air blower or a heat radiation device. Requires heating to at least 35°C in preparation for phosphating.

[0009] The beneficial effect of the present invention is that the phosphating speed is fast: under the tempering process conditions of 25-40°C, phosphating for 2-5 minutes can obtain a thickness of 1-3 microns / cm 2 high-quality phosphate coating. One-component supply, tank matching and replenishment are one liquid, which is very convenient to adjust and us...

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Abstract

The invention relates to a method for using single component low-temperature zinc-based phosphatization liquid, comprising the steps of removing oil, rinsing,, removing rust, rinsing, tempering, parkerising, rinsing, drying and coating, wherein the tempering technology is as follows: firstly, using a frosting material to frost the surface, then using a fan to blow the frosted fragments on the surface away, using magnet to further absorb the fragments on the surface, and finally, using an air-heater or a thermal radiation device to heat the surface to at least 35 DEG C is ordinarily reached to prepare for phosphatization treatment. The method has the beneficial effects that the phosphatization speed is fast: phosphatization is carried out for 2-5 minutes to obtain high quality phosphatization film with the depth of 1-3 microns / cm<2> under the tempering process condition of 25-40 DEG C; the single component is supplied, the same liquid is adopted during tanking and replenishing, and the regulation is extremely convenient; the bonding force between the phosphatization film and a paint film is firm, and a coating layer has good corrosion resistance; and the phosphatization liquid does not contain toxic substances such as heavy metals, nitrites and the like, is in favor of worker health and environment protection, has the characteristic of less sediment amount, and can be used for a long term.

Description

technical field [0001] The invention relates to a single-component low-temperature zinc-based phosphating solution. Background technique [0002] Single-component low-temperature zinc-based phosphating solution is used to phosphate iron and steel parts at a temperature of 25-40°C, and a uniform and dense gray phosphating film can be quickly obtained. The phosphating film has good alkali resistance, especially suitable for steel and galvanized sheets Phosphating treatment before cathodic electrophoretic coating can also be used for phosphating treatment before painting, plastic spraying and electrostatic powder coating. The phosphating solution is widely used in automobiles, ships, household appliances, steel doors and windows, instruments and meters, high and low voltage electrical appliances, machinery manufacturing and other industries. [0003] Commonly used processes are: degreasing-water washing-rust removal-water washing-phosphating-water washing-drying-painting. How...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/78C23C22/12
Inventor 缪克忠
Owner 缪克忠
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