Enamel steel fish-scaling performance drainage hydrogen measurement experimental detection device and detection method

A detection device and a technology for enamel steel, applied in the direction of electrochemical variables of materials, etc., can solve the problem of failing to provide the anti-scaling performance of cold-rolled steel plates for enamel, and achieve the effects of low cost and simple operation

Active Publication Date: 2019-01-15
BAOSHAN IRON & STEEL CO LTD
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Problems solved by technology

However, ISO 10209-2014 and GB / T 29515-2013 did not give the threshold for judging whether the anti-scale explosion performance of cold-rolled steel plates for enamel is qualified or not

Method used

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  • Enamel steel fish-scaling performance drainage hydrogen measurement experimental detection device and detection method
  • Enamel steel fish-scaling performance drainage hydrogen measurement experimental detection device and detection method
  • Enamel steel fish-scaling performance drainage hydrogen measurement experimental detection device and detection method

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Embodiment

[0055] The hydrogen penetration curve of the enamel steel plate can be measured by adopting the experimental detection device of the present invention, so as to characterize its anti-scale explosion performance. The test process complies with the BS EN 10209-2013 standard, as follows.

[0056] 1. Sample

[0057] At least 4 parallel samples of each material. The sample size is 70-90mm wide and not less than 100mm in length. It should be noted that the edge of the steel coil has a higher sensitivity to scale explosion than the center.

[0058] 2. Experiment preparation

[0059] Step 1: Degrease

[0060] 30±5g / l degreaser in distilled water. The solution was held in a glass container and changed daily. The degreasing temperature is 70-75°C, the degreasing time is 5 minutes, and electromagnetic stirring is performed during the degreasing process.

[0061] Step 2: Rinse in cold water

[0062] Rinse (or soak) in tap water for 30 seconds.

[0063] Step 3: Degrease

[0064] ...

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Abstract

The present invention relates to a detection device and a detection method for enamel steel. An enamel steel fish-scaling performance drainage hydrogen measurement experimental detection device comprises an experimental tank (31), a circulating temperature control device (21), a hydrogen charging solution (22), a temperature measuring probe (23), a counter electrode (25), a galvanostat (26) and acapillary tube (28). A sample plate (24) is placed in the middle lower part of the experiment tank; the experimental tank is separated by the sample plate to form an upper cavity and a lower cavity; the upper cavity constitutes a hydrogen filling pool X, and the lower cavity constitutes a hydrogen measurement pool Y; the capillary tube is installed in the lower chamber; two resistance wires (29) are fixed in the channel of the capillary tube and the channel segment of the capillary tube equipped with the resistance wire is partially immersed in a conductive solution (27); the two resistance wires constitute a loop through the conductive solution; and an electrical signal measurement instrument (30) is connected to the two resistance wires for detecting the change of the electrical signal of the loop. Further, the rising situation of the liquid level of the capillary tube is recorded; that is, a hydrogen evolution volume is measured in real time; and finally, a hydrogen volume and timecurve of the sample plate is obtained.

Description

technical field [0001] The invention relates to a detection device and a detection method for enamelled steel, in particular to an experimental detection device and a detection method for the exploding performance of enamelled steel scales for liquid discharge and hydrogen measurement, and belongs to the field of product quality detection. Background technique [0002] Enamel scale explosion is caused by hydrogen in the steel plate. In fact, the enamel layer is a multi-layer structure, which is mainly a continuous network frame composed of mixed polyhedrons; the regularity of the layer network is between silicate crystals and silicate enamel, which belongs to sub-regularity. continuous network structure. It is because of this special structure that the diffusion of hydrogen in the porcelain layer is very difficult. In the process of producing enamel products, if a large number of hydrogen atoms are dissolved in the steel, and the hydrogen in the steel reaches supersaturati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/42
CPCG01N27/42
Inventor 吴玮巍王宝森周庆军刘明亮朱国和
Owner BAOSHAN IRON & STEEL CO LTD
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