Measuring device and method for oil film on plate surface

Abstract

The invention discloses a plate surface oil film measurement device and a method adopting the same. The measurement device comprises a cleaning tank, a sample fixing unit, a surface tension gauge, a platinum plate and an oil film scraper plate, wherein the cleaning tank comprises a first area and a second area which are mutually communicated, and the sample fixing unit is located above the first area and can move up and down; the surface tension gauge is located above the first area; the platinum plate is arranged on the surface tension gauge. The plate surface oil film measurement device has the benefits as follows: when the measurement device is used, the cleaning tank can be filled with a cleaning liquid, a sample is immersed in the cleaning liquid repeatedly, and accordingly, oil on the sample is cleaned down; the area of the whole oil film is calculated, finally, the quantity of the oil film is calculated according to a formula a-b*d / f, a is a fixed parameter 102.0, b is a fixed parameter 0.165625, d is the distance between the oil film scraper plate and the end part of the cleaning tank, and f is a surface tension value obtained through measurement of the tension gauge.

Description

technical field [0001] The invention relates to a measuring device, in particular to a measuring device and method for oil film on the surface of a board. Background technique [0002] When the metal sheet is produced and stored, it is usually necessary to coat a layer of oil film on the surface of the metal sheet, but the coating of the oil film needs to have a standard. If the amount of oil film applied is too large, the amount of oil will be wasted too much. And the surface of the board will form a lot of oil stains. If the amount of greasy coating is too small, uneven coating may appear on the surface of the board. [0003] The amount of oil applied not only directly affects the product quality, but also affects the actual use of the user. Too low amount of oil can affect the incidence of scratches on the surface of the product during production, shearing and transportation; too high amount of oil can easily increase the incidence of "oil spot" defects on the surface o...

AI Technical Summary

Problems solved by technology

[0005] The problem with existing methods is that the intensity of reflected light and the direction angle have a lot to do with the state of the reflective surface. If the roughness of the reflective surface is greater, the measured data will be smaller.

However, different metal plates have different surface roughness procedures, which have a greater interference effect on the ellipsometer

Therefore, traditional measurement methods are not universal

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