Method for preventing condensation and rustiness on metal surface

A metal surface, condensation technology, applied in the field of preventing condensation and rust on metal surfaces, can solve the problem of not adopting anti-condensation early warning measures, and achieve the effect of preventing condensation, obvious effect, and avoiding loss of corrosion

Inactive Publication Date: 2010-01-06
WISDRI ENG & RES INC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, on the one hand, people have higher and higher requirements on the quality of some special-purpose metal products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A method for preventing condensation and rust on a metal surface, which comprises the following steps:

[0015] 1) Preparation of equipment: set up a dew point meter in the storage metal product warehouse to measure the environmental dew point value Ta of the storage metal product warehouse (take the steel coil warehouse as an example); use 4 chip thermal resistors to be pasted on the The surface of 4 metal products in 4 different areas is used to measure the temperature T1~T4 of the surface of 4 metal products distributed in 4 different areas in the metal product warehouse (the temperature of the first metal product surface is T1, the temperature of the fourth The temperature on the surface of the metal product is T4,); the output end of the dew point meter and the output ends of the four patch thermal resistors are respectively connected with the input end of a controller with display, alarm and simple calculation functions by data lines, and the control The controlle...

Embodiment 2

[0018] It is basically the same as Example 1, the difference is that: 2 patch thermal resistors are used to stick on the surface of 2 metal products in 2 different areas respectively, and are used to measure 2 thermal resistances distributed in 2 different areas in the metal product warehouse. The temperature T1~T2 on the surface of the metal product.

Embodiment 3

[0020] It is basically the same as Example 1, except that 10 patch thermal resistors are used to respectively paste on the surface of 10 metal products in 10 different areas, and are used to measure 10 thermal resistances distributed in 10 different areas in the metal product warehouse. The temperature T1~T10 on the surface of the metal product.

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PUM

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Abstract

The invention relates to a method for preventing condensation and rustiness on a metal surface, which is characterized by comprising the following steps: 1. preparation of equipment: arranging a dew point instrument in a metal product storage, and respectively pasting a plurality of SMD thermal resistors on the surfaces of a plurality of metal products in different areas; 2. transmitting signals of a detected environmental dew point value Ta and the temperature T1-T2 on the surfaces of the metal products into a controller, firstly generating the lowest value TL in T1-T2 through the operation of the controller, and then carrying out subtraction of TL and Ta through the controller to acquire a difference value delta T; generating a first-level alarm signal when the delta T is lower than 3 DEG C, and indicating that condensation on the metal product surfaces may occur; and generating a second-level alarm signal when the delta T is lower than 1.5 DEG C, and indicating that condensation on the metal product surfaces is to occur. A user has to immediately take a ventilating or heating measure, otherwise the metal products can be corroded. The method can prevent the condensation on the metal surface.

Description

technical field [0001] The invention relates to a method for preventing condensation and rust on metal surfaces. Background technique [0002] As we all know, metals are not easy to corrode in dry air for a long time, but they will corrode quickly in humid air. The main reason is that in humid air, if the temperature of the metal surface is lower than the dew point temperature of the environment where it is stored, condensation will occur on the metal surface and a thin water film will be formed. It contains a small amount of hydrogen ions and hydroxide ions, and also dissolves gases such as oxygen, so that it becomes a layer of electrolyte solution, which is compatible with Fe in the metal and a small amount of inactive impurities such as graphite and Fe. 3 C, etc., just form countless tiny primary batteries. In these galvanic batteries, Fe is the negative electrode and the impurity is the positive electrode. Fe loses electrons and is oxidized. Therefore, electrochemica...

Claims

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Application Information

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IPC IPC(8): C23F15/00F24F7/00
Inventor 李艳
Owner WISDRI ENG & RES INC LTD
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