A detection method of a soft magnetic strip ash detection device

Abstract

The invention discloses a detection method of a soft magnetic strip ash detection device. The detection device includes a flat plate, a bracket, a cylinder with a magnetic ring, an air pipe, a solenoid valve, an air supply pump, a clamping seat, a guide rod, an annular pressure block, a friction head, magnetic strip clamp, ring clamp, standard cotton cloth, magnetic switch and control counter. The detection method is as follows: cut a certain length of soft magnetic strip, install it on the magnetic strip splint, wrap the standard cotton cloth on the friction head of the lower guide rod, clamp the standard cotton cloth with the ring clamp, select the standard ring pressure block, put the ring The weight block is installed and fixed on the guide rod, the number of reciprocating movements of the cylinder is set by the control counter, the detection device is started to work, after the stop, the standard cotton cloth is removed, and the standard cotton cloth is compared with the Ringelmann blackness card. The invention has accurate detection without destroying the soft magnetic strip, is simple and convenient to operate, can qualitatively and quantitatively evaluate the actual ash falling of the soft magnetic strip, and is suitable for popularization and use when detecting the ash falling of the magnetic strip.

Description

technical field [0001] The invention relates to the field of detection methods for ash falling from magnetic stripes, and in particular belongs to a detection method for a detection device for ash falling from soft magnetic stripes. Background technique [0002] Soft magnetic strips are mainly used in refrigerators, kitchen appliances, bathroom facilities, doors and windows and other door seal rubber sleeves. Because of their moderate suction, when combined with plastic sleeves to form door seals, they have good sealing performance, wide temperature range, easy opening, and long-term durability. Durable, so it is widely used in many industries. At present, during the actual use of soft magnetic strips, there are cases of graying. When touched or wiped by hand, there will be black powder on the surface of the dusty soft magnetic strip, which seriously affects the appearance and actual use of the soft magnetic door seal. However, at present, the detection of ash on soft magn...

AI Technical Summary

Problems solved by technology

When touched or wiped by hand, there will be black powder on the surface of the dusty soft magnetic strip, which will seriously affect the appearance and actual use of the soft magnetic door seal

However, at present, the detection of ash on soft magnetic strips is generally based on visual observation or rubbing with hands. There is no detection device that can detect ash on soft magnetic strips.

At the same time, there is no uniform method and standard for detection. It can only be roughly judged artificially about the graying of the soft magnetic strip, and the degree of graying cannot be quantified, and accurate detection cannot be done.

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