Other people's wipers can last for 3 years, but mine can't wipe clean even after one year. This situation may be caused by various differences in the usage environment, usage methods, and wiper materials.
This is like a mobile phone battery. Some friends send WeChat messages and make phone calls. They charge it once a day and use it for 2 or 3 years without any problems.
Some of my friends play games every day and charge their batteries 3 or 4 times a day. Maybe one year is not up yet, there is a problem with the battery, and the battery even needs to be replaced.
Why others can use it for 3 years
First of all, theoretically speaking, a pair of wipers can last for 3 years, which is actually not too difficult.
The automotive industry standard QC/T 44-2009 "Automotive Windshield Electric Wiper" stipulates that the durability of the wiper strip should not be less than 500,000 wiper cycles. How long can it be used for 500,000 times? Let's do the math.
Xu Zhongming and others published a paper in the journal "Automotive Engineering", "Analysis of Noise Quality of Automobile Wiper System", which said: The wiper frequency is generally 45 to 60 times/min.
Let’s calculate it as 50 times per minute. It takes 1 hour to drive each time, which is almost 3,000 times.
The National Climate Center of the China Meteorological Administration issued the " 2021 China Climate Bulletin ", which also has data.
The average number of precipitation days nationwide in 2021 is 101.1. In some places such as Xinjiang, Gansu, Qinghai, etc., there are less than 50 precipitation days in a year.
Looking at the average number of days, the wiper wiper wipes about 300,000 times a year, so the life span of 500,000 times lasts for one and a half years.
In places with less precipitation, there are only 50 days in a year and 150,000 times in a year. It is normal to use it for three years, right?
Why does my life stop working after one year?
- There are many days of precipitation, and I use a lot of water.
Why do many friends say: "Then you said this, I won't work for less than one year?"
The data in the climate bulletin just now: Zhejiang, In some areas of Fujian, Jiangxi, Guangxi, Hunan, Guizhou, Chongqing, and Sichuan, the number of annual rainfall days is 150 to 200, and in some areas it is even more than 200 days.
If you calculate based on 200 days, the wiper will wipe 600,000 times a year. Then for friends in these places, the wiper may not be used in a year.
- The coating material of the strip is not good
Even if the precipitation and frequency of use are relatively close, if the quality of the wiper we buy is not good, it will not work for a year, or even for 3 months. .
The lifespan of the wiper depends first on the material of the surface coating of its strip.
Common coating materials for wipers nowadays, molybdenum disulfide , graphite , and Teflon are the mainstream ones, and Teflon coatings are relatively more durable.
Xu Jin and others published a paper in the journal " China Mechanical Engineering ", "Research on the Fretting Wear Performance of Polytetrafluoroethylene-based Bonded Solid Lubricating Coatings", which is discussed in it.
Teflon is the "polytetrafluoroethylene" just mentioned. The wear resistance of Teflon coating is 5 to 7 times higher than that of solid lubricating coatings such as molybdenum disulfide and graphite.
I took a look at the products on the market. For example, in a certain era, as for the red-labeled German brand, the ribbed wipers used graphite coating, and only high-end products had Teflon coating on them.
is not a brand that uses the same material, separate, expensive and cheap.
If our wiper coating is not wear-resistant enough, others have used it for 3 years, but we can only use it for 1 year. "Oh, you get what you pay for." It is usually used in this kind of place.
- The structural difference of wipers
In addition to the coating, the structural differences of the wipers themselves will also lead to different lifespans. Aren't
wipers divided into bone wipers and boneless wipers ?
The ribbed wiper uses a metal bracket to support the rubber strip, while the ribless wiper uses two relatively long steel bars to provide an overall, curved downforce to the rubber.
Relatively speaking, in terms of pressure distribution, boneless wipers are more even than those with bones.
If the wiper pressure is unevenly distributed, when the wiper wipes over, a certain area may not be wiped, which makes us feel that the wiper is not clean.
In fact, this is not a problem with the rubber strips, but with the iron bars and iron frames of our wipers.
- Frequent exposure to the sun will cause the strips to age
Finally, if our car is frequently exposed to the sun, the wiper life may be shortened.
No matter how you talk about it, no matter how you coat it, the wiper body is made of rubber. The high temperature of the sun still has a great impact on the aging of the rubber. Long-term exposure to the sun can easily cause the wiper strip to deform or lose its elasticity.
A certain car company has done a high-temperature test on wiper aging.
put 8 different brands of wipers in a climate test chamber at 70°C for 10 hours. 5 wipers had a problem of reduced fit, and 6 wipers had a problem of increased noise.
To put it simply: if our cars are often parked in the open air and exposed to the sun, how can we compare with people who are pampered every day and have underground parking garages and dedicated parking spaces?
It is true that some people use it for 3 years and some people use it for 1 year. We can only admit it. After all, parking spaces are sometimes more expensive than cars.
Is there any way to extend the lifespan
If we also want to use a pair of wipers for 3 years, we can actually achieve it through some methods to reduce the curve or indirectly.
First of all, when buying a wiper, try to choose the boneless wiper I just mentioned, and then use Teflon coating.
is also sold at my home. For those who want to replace their wipers in the near future, you can check out our own brand of Teflon-coated wipers. The products I sell myself will not be fake. In terms of the environment in which
is used, it is inevitable that it will rain frequently. It is not a remote control, and it will stop raining when you press the button, right?
Parking We can always try to park in a place that is not exposed to the sun, right? Even if it’s an open-air parking lot, find a shady spot.
This will not only make the wipers more durable, but will also be beneficial to the life of the rubber parts, interior trim and other components on the car.
It’s not too troublesome. For those who are still a bit hands-on, you can also replace a small strip of the wiper rubber part separately after the wiper strip has reached the end of its life. It does not mean that the entire wiper has to be replaced. In fact, it can be replaced individually. .
specific tutorial our video has done, "How to replace the wiper strip yourself?" 》You can search directly on my account homepage.
Wipers can last for 3 years, but there is less rainfall and they are used less.
Generally speaking, if other people's wipers last for 3 years, it may be that they live in a place where there is less rainfall and they use less.
We don’t live in those places, and we want to use our wipers for a long time. In addition to avoiding exposure to the sun, we can also choose the material, materials, and structure when buying wipers. Let’s spend some time on these three things. thought.
Boneless, Teflon, and silent wipers are relatively good, and they are also sold at my home.
The wiper blade becomes more and more mushy. How can I completely solve it in one go?
But even though I have mentioned this today, many friends have left me messages before and said: "How come still can't wipe clean? The wiper I bought today will be wiped clean this afternoon." It can't be wiped clean, isn't good at it? "
In fact, it is possible that the wiper itself is not faulty, but the glass is dirty and there is an oil film on it. You should replace it with a new one.
How can we judge whether there is oil film on the car? is caused by the oil film. If we don’t blame the wipers, and don’t want to be confused by the car wash shop master, how can we judge ourselves?
How do you use the wiper strips I just talked about in ? operation videos, cases, and analyzes are all ready for everyone.
- Keywords: wiper
If you want to see it, it is very simple. Follow "Spare Tire Talking Cars" and reply with the keyword " wiper ".
will give you a piece of practical car information every day, text , audio , video . Just choose the version you like. "Spare Tire Talking about Cars" is waiting for you to play.
References
[1] QC/T 44-2009. Automobile windshield electric wiper[S].
[2] Xu Zhongming, Zhang Yu, Liu Jianli, He Yansong, Yuan Qiong. Noise quality analysis of automobile wiper system[ J]. Automotive Engineering, 2014.
[3] 2021 China Climate Bulletin. China Meteorological Administration
[4] Xu Jin, Zhu Minhao, Zhou Zhongrong, Chen Jianmin. Research on fretting wear performance of polytetrafluoroethylene-based bonded solid lubricating coating [J].China Mechanical Engineering, 2003.
