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Method for preparing automobile hub high-temperature phosphating solution

A technology of automobile wheel hub and phosphating liquid, applied in the direction of metal material coating process, etc., can solve the problem of slow phosphating speed, and achieve the effect of improving phosphating efficiency, fast forming speed and increasing activity

Inactive Publication Date: 2018-05-11
BENGBU FUWOTE WHEEL MFG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the current processing and manufacturing process of the wheel hub, in order to improve the processing quality and use effect of the wheel hub, it will go through multiple processing procedures, among which the phosphating of the initial wheel hub is also a very important step. This patent provides a high-temperature automotive wheel hub The preparation method of phosphating solution can effectively improve the efficiency and quality of hub phosphating, and solve the current technical problem of slow phosphating speed

Method used

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  • Method for preparing automobile hub high-temperature phosphating solution
  • Method for preparing automobile hub high-temperature phosphating solution
  • Method for preparing automobile hub high-temperature phosphating solution

Examples

Experimental program
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Effect test

Embodiment 1

[0047] A preparation method of a high-temperature phosphating solution for an automobile wheel hub: comprising the following steps:

[0048] (1) Raise the temperature of the reactor to 70°C, then pass in nitrogen gas, and seal it for storage, then stop the heating, seal it for 30-40 minutes, open the lid and cool down until the temperature in the kettle is 50°C;

[0049] (2) Add phosphoric acid, zinc nitrate, thiourea, zinc oxide, oxalic acid, sodium fluoride, and nickel nitrate to the reactor in sequence, turn on the stirring function of the reactor, stir at a constant speed for 30 seconds, then quickly add ethanol, heat up to 65°C after sealing and stir 20min;

[0050] (3) Mix citric acid, ammonium fluozirconate, hydrofluoric acid, boric acid, ethylenediaminetetraacetic acid, zinc molybdate, tartaric acid, and accelerators together to sterilize them with ultraviolet rays, and then put them in a refrigerator for low-temperature refrigeration for 1 hour;

[0051] (4) Add the ra...

Embodiment 2

[0056] A preparation method of a high-temperature phosphating solution for an automobile wheel hub: comprising the following steps:

[0057] (1) Raise the temperature of the reactor to 75°C, then pass nitrogen gas into it, and seal it for storage, then stop heating, seal it for 30-40 minutes, open the lid and cool down until the temperature in the kettle is 55°C;

[0058] (2) Add phosphoric acid, zinc nitrate, thiourea, zinc oxide, oxalic acid, sodium fluoride, and nickel nitrate to the reactor in turn, turn on the stirring function of the reactor, stir at a constant speed for 40 seconds, then quickly add ethanol, heat up to 65°C after sealing and stir 25min;

[0059] (3) After mixing citric acid, ammonium fluozirconate, hydrofluoric acid, boric acid, ethylenediaminetetraacetic acid, zinc molybdate, tartaric acid, and accelerators, carry out ultraviolet sterilization, and then refrigerate at low temperature in a refrigerator for 1.5 hours;

[0060] (4) Add the raw material co...

Embodiment 3

[0065] A preparation method of a high-temperature phosphating solution for an automobile wheel hub: comprising the following steps:

[0066] (1) Raise the temperature of the reactor to 75°C, then pass in nitrogen gas, and seal it for storage, then stop heating, seal it for 30-40 minutes, open the lid and cool down until the temperature in the kettle is 50°C;

[0067] (2) Add phosphoric acid, zinc nitrate, thiourea, zinc oxide, oxalic acid, sodium fluoride, and nickel nitrate to the reactor in turn, turn on the stirring function of the reactor, stir at a constant speed for 35 seconds, then quickly add ethanol, heat up to 65°C after sealing and stir 23min;

[0068] (3) Mix citric acid, ammonium fluozirconate, hydrofluoric acid, boric acid, ethylenediaminetetraacetic acid, zinc molybdate, tartaric acid, and accelerants together to sterilize them with ultraviolet rays, and then put them in a refrigerator for low-temperature refrigeration for 1 hour;

[0069] (4) Add the raw mater...

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Abstract

The invention discloses a method for preparing an automobile hub high-temperature phosphating solution, and relates to the field of hub processing equipment and technologies. The method includes the steps that a reaction still is heated and then connected with nitrogen, uncovering cooling is performed after sealed storage, phosphoric acid, zinc nitrate, thiourea, zinc oxide, oxalic acid, sodium fluoride and nickel nitrate are added into the reaction still for stirring, ethyl alcohol is further added after stirring, and temperature-rise stirring is conducted after sealing; citric acid, ammoniumfluozirconate, hydrofluoric acid, boric acid, EDTA, zinc molybdate, tartaric acid and an accelerant are mixed together and further subjected to ultraviolet sterilization, and the mixture is put intoa refrigerating chamber for conducting low-temperature storage; the mixture is further added into the reaction still to be stirred; clear water is added to be heated; and sodium silicate, magnesium chloride, a surface active agent, white vinegar, graphite powder and nanometer silicon powder are added into the mixture to be evenly stirred and accordingly the automobile hub high-temperature phosphating solution can be prepared. By adoption of the method, the raw materials are added in sequential order, the effect that early-stage phosphorization raw materials are mixed and collaborated more evenly can be guaranteed, then all the raw materials are mixed, phosphatizing agents can be made evener under the strict temperature and stirring condition action, and therefore the phosphorization effectcan be improved.

Description

Technical field: [0001] The invention relates to the field of hub processing equipment and technology, in particular to a method for preparing a high-temperature phosphating solution for an automobile hub. Background technique: [0002] The wheel hub refers to the cylindrical metal part in the car tire that is centered on the shaft to support the tire. In layman's terms, it is the part where the axle is installed in the center of the wheel. It is an important part that connects the brake drum (brake disc), the wheel disc and the half shaft. part. [0003] The so-called "tyre" is the rubber part in the "wheel" of the car. It is soft in itself, so the drum-shaped part of the inner profile of the tire that supports the tire and the center is mounted on the shaft is called the hub. The main advantage of steel wheels is that the manufacturing process is simple and the cost is relatively low, and the ability to resist metal fatigue is very strong, which is what we commonly call c...

Claims

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Application Information

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IPC IPC(8): C23C22/47
CPCC23C22/47
Inventor 年君
Owner BENGBU FUWOTE WHEEL MFG TECH
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