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Method for quickly identifying whether vehicle body metal plate is galvanized steel plate or not

A technology of galvanized steel sheet and car body, which is applied in the preparation of test samples, material analysis by observing the influence of chemical indicators, and analysis by chemical reaction of materials, etc. The work cannot be carried out on a large scale, the observation and analysis are highly specialized, and the instruments and equipment are expensive, so as to achieve the effect of short test period, reduced identification cost, and low cost

Pending Publication Date: 2022-07-26
CHONGQING CHANGAN AUTOMOBILE CO LTD
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Problems solved by technology

[0004] Both metallographic analysis and material composition analysis have the disadvantages of strong destructive sampling, complicated sample preparation process, high technical level requirements, high professionalism in the observation and analysis of results, expensive instruments and equipment, and basically can only be carried out by professional institutions , but the fees of professional institutions are high, and the analysis period is long
Under the current background of increasingly fierce competition in the automobile industry, how to achieve the goal of automobile research and development with high efficiency and low consumption has become the main trend. Identification work cannot be carried out on a large scale

Method used

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  • Method for quickly identifying whether vehicle body metal plate is galvanized steel plate or not
  • Method for quickly identifying whether vehicle body metal plate is galvanized steel plate or not

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Embodiment Construction

[0025] The present invention will be described in detail below with reference to the accompanying drawings.

[0026] The tools used in the present invention include: a balance, a beaker and a measuring cylinder for preparing the cupric chloride solution, the scale of the balance is about 500g, the volume of the beaker is about 500ml, and the volume of the measuring cylinder is about 100ml, which is used for polishing the coating The portable hand-held electric grinder and the matching conical grinding wheel grinding head are used to extract and drop the cupric chloride solution dropper. The volume of the dropper is about 5ml and the length is about 18cm. The cost is low, no expensive equipment is required, and the tools can be used in a single cycle. As a consumable, the consumption of copper chloride is extremely slow.

[0027] see figure 2 , the method shown to quickly identify whether the body sheet metal is a galvanized steel sheet, and identify whether the vehicle side ...

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Abstract

The invention discloses a method for rapidly identifying whether a vehicle body metal plate is a galvanized steel plate or not. The method comprises the following steps that firstly, a salt solution containing copper ions is prepared; and 2, dripping the salt solution containing the copper ions on the surface of the to-be-detected vehicle body metal plate of the whole vehicle, observing the color change of the surface, if the surface of the to-be-detected vehicle body metal plate becomes black within 1s, judging that the detected plate is a galvanized steel plate, and otherwise, judging that the detected plate is a non-galvanized steel plate. The method can quickly identify whether the vehicle body metal plate is a galvanized steel plate, and has the characteristics of high efficiency, small damage and low cost.

Description

technical field [0001] The invention relates to a method for identifying material components, in particular to a method for quickly identifying whether a body sheet metal is a galvanized steel sheet. Background technique [0002] Zinc is a common active metal element. In the air at room temperature, the surface will be passivated to form a thin and dense basic zinc carbonate film, which can prevent further oxidation. In automobile manufacturing, galvanized steel plate is often used as the structural material of the car body, which is to use the characteristics of zinc to be easily passivated, and the zinc is plated on the surface of the steel plate to achieve anti-corrosion effect. , the galvanized layer will also protect the underlying steel from rusting quickly because it is corroded first. [0003] However, due to the high cost of galvanized steel sheets, extensive use will greatly increase the material cost of the vehicle. The use of steel plates in automobiles is larg...

Claims

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Application Information

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IPC IPC(8): G01N21/78G01N1/28G01N1/32
CPCG01N21/78G01N1/286G01N1/32
Inventor 王橙帆何忠树郭聪李英熊艳萍
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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