Many friends in the background left messages, and the wipers have been changed for several pairs, but they still cannot be cleaned. I have bought all the expensive and cheap ones, but it still doesn't work.
In fact, if this happens, it is possible that the pot will not be on the wiper.
The phone cannot be turned on, it may not be because it has no power, it may also be because the screen is broken or the keys are broken. It is possible, right? Under what circumstances can
not be replaced? Under what circumstances is the better way to change? Let's talk about this today.
Improper scraping sometimes does not necessarily mean that there is a problem with the wiper
- First of all, we need to understand the principle of wiper
First, let’s understand the basic principles of wiper
First, let’s understand the basic principles of wiper.
Many friends think that wipers are just to wipe off the water and not to remove it. Not that simple. Zhang Yafeng and others from
WM Motor published a paper in the journal China Automobile, "A Brief Analysis of Related Factors Influencing the Actual Performance of Wiper Systems".
talks about the working principle of the wiper: the wiper does not directly scrape away or scrape off the rainwater, but wipes the rainwater evenly to form a clear layer of water film, just like spreading big cakes and spring roll skins.
Light passes through the water film and will not refract or deform, thereby ensuring the clear driving vision.
- If there is an oil film, there is no way to form a uniform water film
If you feel that the glass is not clean, it may not be that there is a problem with the quality of the new wiper, but that the glass is dirty.
has an oil film, so there is no way to form a uniform water film. Oil and water are incompatible, which is easy to understand, right? For example,
is a bit like making a fried egg, or pancake fruit . Clean glass is the kind of non-stick pan, right? It is easy to spread. Sometimes, you can fry a poached egg without adding oil, right?
But if the oil film is thicker or the glass is dirty, it may become an ordinary wok, or a non-stick pan scratched by steel wool . It will stick to the side at any time, and the overall look will not be smooth.
The gravel, dust, oil smoke, gum , bird shit, insect corpses, etc. in the air will form a waterproof oil film on the windshield for a long time.
Intuitive feeling is that when the wiper is scratched, there are always some places that are blurred.
- You can first clean the surface of the glass and rubber strips
For this oil film, it is enough to make toothpaste.
However, if the area is large and the degree is serious, it is recommended that you use a special oil film cleaner to clean the windshield.
There are many oil film cleaning agents on the market, and I also sell them at home. Friends are very welcome to add us to the shopping cart, compare and compare, I am quite confident in our products and quality.
When washing the windshield, don’t forget to clean the glue strips, because there may be oil stains on the glue strips.
Lift up the wiper, rinse it in the direction of the glue strip, and make it lighter. Generally, you can rinse it while washing the car.
Otherwise, the glass will be clean, and then use a dirty wiper to spread the clean glass out again, which is boring. If
still has not been solved, the wiper really needs to be replaced with
If the cleaning is done, it still cannot be cleaned, the wiper may really have to be replaced, and you can't save money at this time.
When there is a problem with the wiper, there are many reasons. Let me talk about a few more common ones.
- There are obvious water marks after scraping
The first type is that there are obvious water marks when the wiper is scratched, or there is a large area that seems to have not been scratched.Maybe the steel strip inside the wiper has deformed and is not as easy to use as it was when it was new.
Most of the ones used now are boneless wiper . It is not that there is really no so-called "bone". There is a steel piece inside it.
is generally two steel sheets to provide downforce on rubber strips , so that the pressure of the entire rubber strip can be evenly distributed, which is a bit like a spring, press the rubber strip on the glass.
If a pair of wipers has been used for a long time, the elasticity of the steel sheet will be worse, just like a cowhide band and loosen it, then the downforce will not be enough and the glue strips will not fit into the glass.
is still the previous paper, which is what we said above: the downforce is too low and the film cannot be effectively pressed and pressed to the windshield, and there will be problems such as unclear or leakage.
- If there is an abnormal noise, it may be that the rubber is aging and the coating is off
In addition to missing scraping, the second case is that in addition to water marks when scraping, there are also such sounds. This is generally considered as a wiper.
Qin Yikuan published a paper in the journal " China Science and Technology Investment ", "Analysis of Common Faults in Wiper Blades".
says: The abnormal noise of the wiper blade when it is scraped is due to the friction sound when the wiper blade comes into contact with the glass. It is normal to have a little abnormal noise when it is scraped.
But if you can still hear a louder scraping sound when you close the window, it will not fall into the normal range, which is called abnormal. The
paper also mentioned that in addition to the quality of the glue strips, there are two main reasons for abnormal noise.
The first type is that the coating on the glue strip falls off, which will cause abnormal noise. The coating of
is originally used to increase the service life of the glue strip and reduce the noise caused by the friction between the glue strip and the glass. After scraping the coating of
, the life span has been almost used, so I have to change it. At this time, I will make some sand and rub it, which is not very meaningful.
In addition to the coating, the hardness of the rubber strip is hard or soft, which may also affect the normal operation of the wiper and cause abnormal noise.
If it is too soft, it can be heard when the new wiper is wiped. The abnormal noise that occurs after using it for a long time is usually caused by aging and hardening.
has been around for a long time and is not so fit. When scraping it, it is prone to tremble. Either "giggle", or tremble, or jump, all of which are the case.
Many friends also said in the background that they would change their car wipers as soon as they ring. In fact, this method is used to judge whether the glue strips have aging or hardened, so as to save time and worry.
- How to choose a suitable wiper
So much has been said before, but in fact, how to choose a new wiper can also refer to this idea: the focus still depends on the material technology.
For example, the coating mentioned just now, choose more wear-resistant and quieter paint as much as possible. You can remember the name. The one you can use when searching for products is called "Teflon".
is not only used on non-stick pans, but also wipers use this material, and it is also a relatively advanced and better material.
I mentioned in the video before that Teflon's friction coefficient is lower than ordinary graphite or molybdenum disulfide .
scratched cleaner, less noise, and stronger wear resistance, 5 to 7 times that of other materials just now, which is relatively durable.
In addition to this, we also talk about steel sheets and the entire structure. You can also choose a stronger metal material. With a more durable coating, you can use it for a longer time.
You can first clean the windshield and wiper strips
In general, if the wiper is not wiped clean, clean the windshield first, or wiper strips clean together. First, it is necessary to rule out whether it is a glass oil film, otherwise you may spend money in vain.
If there are obvious water marks and are accompanied by obvious abnormal noise, basically the wiper will not run away. How to choose
? According to our previous reference ideas and standards, we can basically choose a relatively cost-effective and satisfactory one (wiper).
Of course, I want to be simpler, even if I sell it at home, I can buy the wipers of the self-operated brand of spare tires, so I started to advertise.
is a new model recently, using SK5 high-carbon steel sheets and metal stamping interfaces, which are stronger and more durable.
You might as well go and see other brands. The interface part is plastic, we use metal, and the coating is also a better coating in Teflon.
The same name, sugar can be good or bad, right? Soy sauce also has different flavors. Our Teflon is also well-known and the actual effect is also good.
Friends who want to change the wiper recently, you might as well consider it.
It's not that difficult to change wipers by yourself
If you are worried that no one will help me buy the wipers, in fact, it's not as difficult as I imagined to install them myself. In less than 1 minute, you can basically do it.
Let girls try it, let novices try it, and you can watch it all.
htmlDamn wipers are not clean within 31 years, and how to remove the oil film problem? We also took a video. For
, you can watch the video directly and choose the product online. Of course, it is the best to choose us, but teaching videos are all universal.
- Keywords: wiper
You might as well follow "Spare tire talks about cars", reply to the keyword " wiper ", watch this video and operate it yourself.
will give you a piece of practical car stuff every day. text version, audio version, video version , just choose the version you like, "Spare tire talks about cars" is waiting for you to play.
References
[1] Zhang Yafeng, Wu Xiaolong, Lu Shaojian. A brief analysis of relevant factors affecting the actual performance of wiper systems [J]. China Automobile, 2022.
[2] Qin Yikuan. Analysis of common faults of wiper blades [J]. China Science and Technology Investment, 2019.
