The natural enemy of cars, especially old cars, is “rust”, isn’t it? If you want to ride for decades to come, you have to protect the body from rust. I often see that the license plate bolts are replaced with stainless steel so that they do not rust, but it is half correct and half incorrect. Every bolt has a nut. The combination of stainless steel bolts and iron nuts causes dissimilar metal contact and attempts to promote the oxidation (rust) of the iron nuts. This is completely meaningless, so if you want to replace it with stainless steel, you have to use a bolt and nut set. For example, in the case of Nissan Figaro, the nut side (stay on the back) of the license plate is made of iron and the nut is welded and cannot be replaced, so it is better to make the bolt made of iron. Bare iron bolts will rust quickly, so use plated bolts. The introduction has become longer, but I will explain how to protect the body. Apply the dissimilar metal contact described earlier to mount the sacrificial electrode. Simply put, a metal that rusts more easily than iron is attached, and […]
Fine dust was stuck in the dust cup of the cyclone vacuum cleaner due to static electricity. I thought that if I put aluminum tape here, I could confirm the effect of static electricity removal. Instead of aluminum tape, I stuck a 10mm wide copper foil tape. It is a state of the garbage cup before applying the copper foil tape. After cleaning, throw away the garbage inside and turn it for about 30 seconds. You can see how the dust is stuck inside due to static electricity. The first photo shows a copper foil tape attached to this. This is a photo after applying copper foil tape and turning the vacuum cleaner for about 30 seconds. Air flows counterclockwise through the garbage cup. It flows from left to right in the photo. There is a dust-free band on the leeward side (right side) of the copper foil tape. This is a picture of the inside of the garbage cup. There is a dust-free band on the leeward side (left side) from the middle of the copper foil tape. It is probable that the copper foil tape affected static electricity and changed the adhesion of dust. For further verification, the […]
It is rumored that there is no point in sticking aluminum tape if the glue is not conductive. Therefore, I decided to purchase a conductive tape and perform a comparative experiment with aluminum tape, copper foil tape, and aluminum tape black from the one dollar store. The conductive aluminum tape is made of 3M. Even the data is attached properly. If you compare it with this, you will get good results. Left: Conductive aluminum tape, Right: Aluminum tape purchased at the one dollar store. The conductive aluminum tape is a black adhesive. It probably contains a conductive substance. I stuck it on the blade of the cutter and checked the resistance value. It shows 0.026 kΩ (26 Ω). If you stick it firmly, the resistance value should be lower, but it is meaningless if you press it strongly and the aluminum comes into direct contact, so just press it lightly. By the way, the aluminum tape and aluminum tape black of the $ 1 store are not conductive. The copper foil tape was about 100Ω. 4 types of tape used in the experiment.From the right1) Copper foil tape2) The one dollar store Aluminum Tape3) Aluminum tape black4) 3M conductive aluminum […]
