Detection method for ash drop detecting device of soft magnetic stripe

Abstract

The invention discloses a detection method for an ash drop detecting device of soft magnetic stripes. The detecting device comprises a flat plate, a bracket, a magnetic ring cylinder, a gas pipe, a solenoid valve, a gas supply pump, a clamping seat, a guide rod, an annular pressure block, a friction head, a magnetic strip splint, a ring clamp, a standard cotton cloth, a magnetic switch and a control counter. The detection method comprises the following steps: intercepting a certain length of soft magnetic strip, and installing it on the magnetic stripe plate; wrapping the standard cotton clotharound the friction head at the lower end of the guide rod and clamping the standard cotton cloth with the ring clamp; selecting a standard annular pressure block and fixing the annular pressure block on the guide rod; using the control counter to set the number of reciprocating movements of the cylinder; starting the detecting device; and removing the standard cotton cloth and comparing the standard cotton cloth with a Ringermann black card after the device is stopped. The invention is accurate in detection, destroying the soft magnetic strip is not to be needed, the operation is simple, which can qualitatively and quantitatively evaluate the ash drop condition of the soft magnetic strip, and is suitable for popularization when detecting the ash drop 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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