Technical field: The invention relates to the field of […]
Technical field:
The invention relates to the field of dust-free cloth detection methods, in particular to a method for detecting the surface finish of the dust-free cloth.
Background technique:
Dust-free cloth is a kind of chemical cloth widely used in electronic optical equipment. It has high requirements for its surface smoothness. To achieve the "dust-free" effect, it is necessary to reduce the number of surface burrs as much as possible to eliminate potential drop-offs. Gross factor. The current inspection method for the surface finish of the clean cloth is to spread the clean cloth and check the burr condition of the cloth surface with the naked eye based on experience. This method of inspection has the disadvantage that the inspection standards cannot be overwhelmingly subjective, which brings both parties to the supply and demand. There have been many differences.
Summary of the invention:
The purpose of the present invention is to provide a method for detecting the surface smoothness of the dust-free cloth that can quantify the surface smoothness of the dust-free cloth in view of the current deficiencies in the surface smoothness detection of the dust-free cloth.
To achieve the above objective, the present invention adopts the following technical solutions:
A method for detecting the surface finish of dust-free cloth, which includes the following steps:
1. Take at least one piece of dust-free cloth to be tested and fold the dust-free cloth in half;
2. Measure the length of the fold line;
3. The number of burrs on the fold of the point under the selected stereo microscope;
4. Characterization parameters of surface finish: Burr line density = all measured burrs
Total/total measured distance. The beneficial effect of the present invention is that the present invention can objectively calculate the characteristic parameter of the surface finish of the dust-free cloth: the burr line density through the method of the above steps. The smaller the value of the burr line density, the better the surface finish effect. By comparing with the formulated reference burr line density, it can be judged whether the surface finish of the dust-free cloth meets the required requirements; this can solve the problem that plagues the surface finish inspection of the dust-free cloth. In order to improve the efficiency and objective reliability of clean cloth inspection, this method has the characteristics of high accuracy and strong operability compared with visual inspection alone.
detailed description:
The present invention will be further elaborated below:
The specific inspection steps for the surface finish of a clean cloth are as follows:
1. Take 3 pieces of dust-free cloth to be tested and fold them in half;
2. Use a ruler to measure the lengths of the fold lines are 10cm, 20cm, 30cm;
3. The number of burrs on the dot fold under a 60-fold stereoscopic microscope is 5, 20, and 16 respectively;
4. Take the average value of the burr number of three clean cloths as the characteristic parameter of surface finish. Burr line density: Burr line density = total number of burrs in three measurements/measurement distance. (5+20+16)/10+20+30=0.76.
Through the method of the above steps, the present invention can objectively propose and calculate the characterizing parameter of the surface finish of the clean cloth: the burr line density. The smaller the value of the burr line density, the better the surface finish effect. By comparing with the formulated reference burr line density, it can be judged whether the surface finish of the dust-free cloth meets the required requirements; this can solve the problem that plagues the surface finish inspection of the dust-free cloth. In order to improve the efficiency and objective reliability of clean cloth inspection, this method has the characteristics of high accuracy and strong operability compared with visual inspection alone. The above-mentioned embodiments are only preferred examples of the present invention, and are not intended to limit the scope of implementation of the present invention. Therefore, all equivalent changes or modifications made in accordance with the structure, features, and principles described in the scope of the patent application of the present invention shall be applied. It is included in the scope of the patent application of the present invention.
