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2012年8月21日星期二

Choosing riority inorganic coating after a heavy rainstorm

Sometimes high temperature exposure, sometimes heavy rain dripping, so many of the vehicles parked in the outdoor parking lot owners may feel pity. Naked in the car outside the paint is the the car most vulnerable parts of the influence of the ambient temperature, sustained hot weather in July and August, Dongguan, Dongguan half month high temperatures, hot weather continues to appear likely to cause car paint surface oxidation, or fading, or a decline in gloss. Coupled with the Dongguan area affected by the typhoon, the city's heavy rains, the rain water mixed with dust in the air, and even acid rain, these factors have been infringed paint.
Dongguan area vehicle can be described as suffering from the torture of "冰火两重天", as car owners, the day-to-day how the paint conservation it? Recently, when a number of car dealers in the owners have to do maintenance, will recommend that owners in this weather coating, the coating is really useful to you? Have side effects? Owners who pay attention to what?
Phenomenon: car dealers the heat pushed coating maintenance business
After rainstorms wash after days of high temperatures, the owner of Chia-last weekend to wash car wash, washing cars acceptance Chia-body dull dull, and found that the paint surface scaly scratches close scrutiny. Happened to the car when the maintenance, Chia-drive the truck to the 4S shop maintenance, car dealers sales staff instantly lobbying Wu Jia for their car to do once coating. Before and there is no contact and understanding through the coating, Chia-use mobile Internet query about automotive coating results show that all coated how good and Wu Jia misgivings.
Coincidentally, the owner had Wai Keung recently to South City, a Japanese joint venture brand car dealers do routine maintenance, a company's after-sales staff told him that the vehicles by the effects of high temperatures and heavy rain, the paint will be damaged, the best at this stage to make a coating to the vehicle, and after-sales staff repeatedly emphasized how good coating had Wai Keung said think about it and do lobby unsuccessful after-sales staff looked very unhappy.
Doubt: automotive coating really hurt?
The South Link Dealers aftermarket responsible for human Cong, automotive coating in the true sense of the inorganic coating is not oxidized crystal glass coating. The inorganic coating coverage in the automobile surface coating layer does not disappear by external factors such as ultraviolet rays, acid rain, oxidation and single case of normal use of the vehicle, protect the paint as long as a year or so. The coating does not require high temperature curing in the roasted room, as long as the chemical reaction occurs, and the moisture in the air, and can be cured with silica as a main component of the crystal glass coating layer.
Generally, the coating step is relatively simple, the first car wash, and then polishing, the main purpose is to restore mirror. Then coated with raw materials first coating, played a backing role, naturally dried and then wipe the paint, then a second coating, starting to consolidate the coating effect. Then enter the infrared light baking stage, so that the depth of penetration of the coating products. Eight months later, then a second coating construction, the purpose is to consolidate the coating effect, this secondary jobs throughout the coating process which should include, if only in front of a coating, the whole process can not be considered the true sense of the coating.
Cong frankly, the coating has many advantages, but it is not without its drawbacks. The before coating granted to vehicle polishing, polishing machine and polishing process will still hurt the paint even the best. For example, the polishing will paint the most sturdy enamel paint worn, which is the physical level of the injury, car damage.
Reportedly, the coating agent through chemical reaction and paint together, penetrate to the paint internal reach to fill the voids between the paint molecules. The downside is that the destruction of the molecular layer of the original paint, once done open has to do to remain bright. Each do a coating, paint is worn away a layer thinner and thinner. Cong recommendations, two or three months or car wash should be about 10 times better to car wax to protect the paint.
Reminder: select inorganic coating, do not neglect the painting
Cong told reporters that a lot of coating products currently on the market are organic, it is noteworthy that the organic coating products not only paint protection, not persistent, but can also cause paint oxidation, the real automotive coating, inorganic coating, never LCD glass coating oxidation. So as to cover the automobile surface coating layer, not disappear by external factors such as ultraviolet rays, acid rain, oxidation and protect the paint up to 1 year or more. In addition, the coating of the construction environment there are certain requirements, must be independent construction operations (clean room), in order to maintain the finish absolutely clean. Coating demanding requirements of the construction process and tools, if you can not use a dedicated tool implemented in accordance with the process, it is difficult to achieve the perfect construction effects.
In view of the beauty shop coating products cut corners is serious, resulting the owners waste of time and money. Therefore, Cong proposal really need coating, be sure to choose a large chain of automotive beauty shop or 4S shop.
In addition, Cong told reporters injured, so will paint the car or car wash in everyday life accidentally leave scratches, this time its paint repair. Up painting to pick a qualification qualified professional paint factory or 4S shop, if not very skillful painters, there is no high-temperature dust-free paint shop, it is impossible to get the painting effect. Up painting when many owners would ask the technician to the car using the original paint, Cong disclose, in fact, simply could not exist original paint, original painting process needs to go through 200 ° C high temperature baking, if the fill paint also use this technology, the car will become "roasted sweet potatoes" up painting with paint is designed for low-temperature baking, generally at 60 ℃ -70 ℃, painted a prerequisite for a good working environment, car paint correction in place, as well as good construction techniques.

Pay attention to late summer rainy season to clean car

Although a time before the beginning of autumn, the temperature in the south is still hot. Hot and rainy climate great damage on the car, especially suddenly encountered heavy rain, flooding more miserable. The owners are most concerned about now the problem has become how to deal with the vehicle "rainy season disease" and do maintenance.
To this end, the reporter visited Zhongshan few auto 4S shop summarize the owners keep a car for several high temperature during the rainy season of Road.
Rain car wash in a timely manner to protect paint
Many owners believe that the rainy dust on the surface of the vehicle after the rain washed away, eliminating the need for a car wash trouble. But the fact is, in the rain often contain acidic substances, the vehicle is the rain after a long time without cleaning, these acidic substances paint the appearance of bright film is etched away, let the paint become eclipsed.
Rain mixed with some invisible asphalt fines, dirt, dust, etc., are easily absorbed in the body paint. These dirt after sun exposure derived oxides, over time will leave indelible scars in the paint surface. Therefore, after the rain, vehicle cleaning work is more important than ever.
But insiders at the same time suggested that the car wash also have to go too far, one week up to three times. After all, vehicle cleaners contain corrosive elements, frequent washing will not only corrosion paintwork of the vehicle, more frequent cleaning may be your car paint scratches. As the summer strong ultraviolet radiation can damage paint, faithful car in the car wash best vehicle sealing glaze. This can not only reduce UV damage to vehicle paint, allow the vehicle paint looks very bright.
Frequently check the working condition of the wiper
Rainy weather, the wiper will be useful when in use for some time, but the rubber wiper blades prone to aging, hardening, and even cracks rain cleared not clean the front of blurry vision, often thus triggering the accident.
Do Wiper maintenance, the owner of the wiper switch placed the various speed at the position, to observe vibration wiper work and abnormal sound, check the status of the different speed wiper to maintain a certain speed wiper was observed, as well as the wiper rod whether there swing uneven or missing scratch phenomenon. If both a failure means that the wiper blades are damaged. Owners can slowly wiper pull up on the wiper blade with your fingers to touch, to check whether the rubber blade damage. If the leaf aging, hardening even cracks, it should be replaced.
Rainy day car dehumidification, sterilization is critical
Hot and rainy climate so that the air becomes moist, if irregularly dehumidification, confined space in the vehicle is likely to breed a variety of bacteria, thus affecting the health of the occupants. Therefore, the faithful car after the rain stopped immediately began dehumidification, sterilization work. When it rains, it is open to the cold air can not only remove the fog dehumidification function. Automotive interior cleaners, wipe with a dry cloth. If there is no cleaners, but also in a timely manner with a clean towel or paper towel to wipe the key parts to keep the car clean.
The most convenient way car dehumidification, find some cool and ventilated place, open the door, so that moisture can be completely ruled out of the car. Then remove the car Mats, Seat Covers, drying after cleaning. After the cleaning of carriages of the same can not ignore the need to put the items to remove the dust with a vacuum cleaner sucked, wipe clean cloth dipped in water or a cleaning agent directly after the car, to be the trunk dry and then replace items.
Insiders suggested that the owners have put a simple dehumidification box in the car, so the car is difficult to damp after overnight. If no dehumidification box, temporarily put a roll of toilet paper in the car can also play dehumidification effect.
In addition, after the rain, air conditioner out of the wind, there is often a surge of mildew smell to the air conditioning of the warm open to the maximum, take turns using a variety of wind patterns, probably blowing about 15 minutes. Air conditioning work, the outlet temperature of 40 ~ 50 ℃, can evaporate inside the hot flashes of air, so as to remove mildew odor.
Chassis sealed plastic to avoid rusting
Rainy day encounter muddy road vehicles is often the case, the chassis of the vehicle is the place off the ground, and sometimes may not be able to timely cleaning, resulting in vehicles under side of the gap at the easy accumulation of sludge, causing rust.
Car chassis rust to the professional automotive beauty shops to do the best for the chassis sealed plastic protection. Especially during the rainy season, muddy road surface will the chassis cause corrosion, sealed a layer of soft plastic can play a rust-proof, crash, Fangzao role. Allows automotive beauty shop to do a polymer rubber polymer in the the underbody coating layer about 5mm chassis rust treatment, rust effect can be kept for 3 months time.

Autumn maintenance of air conditioning is necessary

Main reason for the tire market is very tough, tire prices began to decline from March, May prices fell more obvious. Tire price, at about 10% lower than the same period last year. Tire prices The decline in the price of raw materials. "Sun Qimao City tire store manager told reporters.
The reporter learned from several tire stores and car decoration shop, tire sales this year than last year's decline, the rate of decline at least 10%, individual store sales decline of 30% to 50%. It is reported that in the first half of this year, the tire needs two leading indicators - the year-on-year growth rate of fixed asset investment and the highway passenger volume decline in the manufacturing index and the transport index more than a month at a low level, the transportation industry also appeared not busy season the condition of the car manufacturers sales is not very satisfactory, tire sales have had a certain impact. In addition, affected by the economic environment, the frequency of some enterprises and institutions to change the tire reduce, which also had an impact on sales of tires.
Mr. Chung told reporters, who has long been engaged in tire sales, tire market has experienced a downturn this year, individual small tire manufacturers has been discontinued, tire sales, particularly pressure. From a price point of view, the recent price of tires is not very clear, if raw material prices, tire prices may have risen throughout the tire market will also be in a recovery phase. At present, the lower the price of the tire, it is recommended that a replacement needs owners may wish at this time shot to be replaced, the replacement of four tires can save at least the last hundred or so.
Since since the beginning of autumn, the weather gradually cooler, the car owners who have automotive air conditioning sensational "leave". Many owners ignore automotive air conditioning maintenance, resulting in the unpleasant smell of automotive air conditioning does not work and other symptoms. In fact, in the fall of the automobile air conditioning maintenance is essential, only periodic testing and maintenance of the air conditioning system of the vehicle in order to ensure normal working when in use. To this end, the reporter interviewed industry experts, to provide some scientific advice on how to use and maintenance of automotive air conditioning for the fall, the majority of owners who may wish to look at.
The evaporating tank and the condenser should be conservation
"Recently, the car always smelled musty smell, but do not know what to 4S shop inspection after the discovery of automotive air conditioning problems." Owners Ms. Zhang told reporters. In fact, the car appeared musty mostly due to the evaporation tank and air-conditioning system condenser made improper maintenance, then how to deal with it? Onslaught of manager of an auto repair service company in Changchun City, said, this situation is mainly due to the evaporation tank water for a long time can not be volatile, the breeding ground for bacteria due. In fact, to avoid this problem is very simple. First of all, the weather is not hot when the windows on both sides of the vehicle roll down, multi-car window ventilation to maintain the freshness of the air inside the vehicle. Second, the normal air conditioning running, before approaching the destination refrigeration pump switched off, but keep the air supply function turned on, so that the natural wind drying the evaporation box of water. More rain in summer, cars often traveling in some wading the road will lead to the lower part of the air conditioning condenser contaminated with silt over time will make the condenser rust, thus shortening the life of the air-conditioned. It is worth recalling that the cleaning careful not knocked over the condenser fins, but can not damage pipe.
Timely cleaning and replacement of the air conditioning filter
Good mainly depends on the quality of air conditioning to the air conditioning filter, so their regular cleaning and periodic replacement. It is understood that, under normal circumstances, every 5,000 km or 3 months on the air conditioning filter once clean every 20,000 km or 12 months to replace the air conditioning filter. Conservation on the air conditioning filter, the Guangqi Toyota (microblogging) into state 4S shop after-sales service Front Desk Supervisor Liu Ying, to the air-conditioning filter car air conditioning air inlet filter, if it is not cleaned for a long time, dust attached above With the air conditioning turned on and blown into the car. Recommends that owners in the summer and fall alternately select the air conditioning filter cleaning and replacement, its working procedure is very simple, as long as the filter out, can spray wash with water cannons and disinfection machine.
Air conditioning pipe cleaning can not be ignored
Air conditioning pipe cleaning is a very important job, because of the dry weather in autumn, plus summer high frequency use air conditioning, breeding and deposition of dirt, dust, bacteria will be in the air conditioning pipe. If not promptly cleaned up, it will cause the air conditioning cooling effect, a small amount of wind and other issues, even the air-conditioning system failure. Liu Ying said, under normal circumstances, you can use the dedicated air conditioning, cleaning agents, air conditioning pipe cleaning after the vehicle is started, open the air inlet air volume to maximum temperature to the minimum; air conditioning, cleaning agents from the air inlet into the the internal pipeline; After about 20 minutes, air-conditioning piping dirt can be discharged from the outfall.

Principle of full grasp of automotive airbag

No one wants a car accident, everyone wants the day peace returned. But with the development of transportation, despite the travel more convenient, but also more security risks. When the major automobile manufacturers in the design models more consideration to the safety factors of the car, which is consumers would like to see and in line with market trends. The last straw as a car airbags role. The following, we are concerned that some of the wide range of automotive airbag.
The body passive security the auxiliary configuration, airbag increasing attention has been paid. When car collides with an obstacle, it is called a collision, collision crew and car components, called the secondary impact, the airbag in a collision, before the second collision quickly open a gas-filled cushion, so the crew due to inertia moves "flutter in the air cushion" thereby alleviating the crew have been hit and absorb the impact energy, reducing the degree of occupant injury.
The driver's seat, at the most, however, vice driver's seat, dual airbags, is often said. In some high-class models, front side airbags, front and rear head airbags, etc., in luxury models, the rear side airbags, front seat with knee airbags. The care of the passengers can be described as looking around all sides. But then a comprehensive security configuration, also need to drive carefully.
The principle of the structure of the airbag
Modern airbag system is provided by the crash sensor, buffer airbag, the gas generator and a control block (PC). . Wherein the control computer is the core, and is generally integrated in the microcomputer. When the car involved in a collision, the electronic control unit receives different locations of the body deceleration signal coming from multiple sensors, after repeated continuous analysis, comparison, calculation, and decide whether to issue an ignition signal. Request control means can very accurate judgments made in the complex case of collision, the ignition timing must be precisely controlled.
Old and new airbags distinction
The the old airbags disposable blasting, the sudden release of energy, will inevitably hurt the vehicle occupant. The new airbags Add scalable the inflatable or release of pressure device, to prevent a sudden point explosion generated enormous pressure on the human head injuries, particularly in the passenger not wearing a seat belt when. This is about the ignition of the rocket. Length booster pusher first combustion, and then burning the next.
Airbag release limited
In order to ensure the airbags opened at the appropriate time, the car manufacturers are provisions of the airbag detonation conditions, only to meet these conditions, the airbag will pop up. Come crashing in the number of traffic accidents, the vehicle occupant, even life-threatening, the vehicle close to retirement, but the explosive conditions amounted to less than the airbag, the airbag or not open.
The airbags Open need the right speed and impact angle. Theoretically, only the front of the vehicle of approximately 60 ° between the position of the impact on the stationary object, the speed is higher than 30km / h, when the airbag is only possible to open. The speed is not understood in the usual sense of the speed, but the speed of the collision of the vehicle relatively rigid fixed obstacles in the test chamber, the actual collision speed of the car is higher than the test speed airbag in order to open the mentioned here.
Note airbags
The airbag cause greater harm to children, so the children as much as possible not to take the passenger seat and must sit to close co-pilot front airbags. Some senior models equipped with pressure sensors under the seat, under pressure to determine the size and weight, which control airbag release or not to open, which is actually very advanced. Airbag is life, generally 10 years to be replaced, or the chemical composition failure, the airbag not open.
Passenger airbags in the top of the right side of the center console, do not put in here what items.
Otherwise, once the airbags work becomes slingshot. May be subject to greater harm. With airbags, even if the whole car has airbags, must wear a seat belt, the fixed pulling no seat belts, airbags can not play a bigger role. According to the survey, a separate airbag accident mortality rate can be reduced by about 18%, the use of seat belts alone accident mortality rate can be decreased by about 42%, while the accident mortality rate can be reduced by about 47% when the airbags and seat belts used in conjunction with . Shows that only the two complement each other to the maximum possible reduction accident mortality.
Airbag repairs
Now, a lot of car accident repairs like repair shop, because it's easy and cheap. But for the airbag, those cottage products are not only the quality is not guaranteed. And the process is also impossible to be so strict. This car of potential problems. Some repair shop disassembly and repair of the central sensor (or control computer), sensors, airbags, belt tensioners in the front of the car for re-use, in fact, this is not allowed.
So once the accident led to the airbag broke 4s shop maintenance plant or specified by the manufacturer, best to replace the airbag more secure. Many models also need to re-match on-board computer and the information code, so ordinary repair shop repair airbag there is a greater risk.

Auto Repair Expert advice: run-in period may not be good speed too slow...

Recently, Miss Chang drove her just to get a new car, traveling to 60 kilometers per hour on the Guangzhou-Shenzhen, Miss Chang said, because it is a new car, so the speed did not dare too fast. For a new car in the run-in period, whether to open the slower the better it? This professional repair master, said the new run-in period, is not open, the slower the better, and is necessary in a certain mileage or date to the 4S shop to do the first insurance.
Owners: the new car break-in period is not open too high speed
For owners who just bought a new car, the sales staff recommend their vehicle run-in period, the driving speed as much as possible not to exceed 80 kilometers per hour. So that many owners believe that the new run-in period, the speed should be set at about 60 km, never more than 80 kilometers.
Nancheng Miss Chang bought a new car, new car break-in period, when Miss Chang each time on Guangshengaosu, have been afraid to open to 80 kilometers per hour. Miss Chang said, afraid to open higher, would hurt the car. Miss Chang same East Side, Mr. Chung, he said, when he had just got the car, each run high-speed to 80 kilometers per hour, did not dare to open, for fear of the impact of fuel in the car after.
Yesterday, the reporter Guantai Road an American car showrooms also saw several owners in mentioning the car, the sales staff will recommend that owners must not open too high speed, new car break-in period, and this will affect later in pristine condition.
Saying in the industry: the run-in period may not be good speed too slow
Whether the slower speed of the new run-in period as possible, one in the garage after-sales maintenance of nearly a decade of experts Wei master told reporters, new car break-in period is a period of time, with the gap of the friction components grinding to a reasonable range, in order to achieve better lubrication.
If the run-in period of the engine speed is too low, the crankshaft connecting rod bearings to withstand the impact speed is too high cylinder wall is easy to strain, causing early wear and tear, so the run-in period should refer to the engine speed, not speed, the gasoline engine speed in 2000 to between 3000 rpm, the diesel engine is between 1000 to 2000 rpm.
However, automotive professionals put forward a different point of view, the new car technology is very precise, the run-in period is actually just a saying, often owners mention of the car, it is open to high-speed to pull to feel the car's performance and power will not necessarily hurt the car, and with the advances in modern technology, the quality of the car is better than before, so the new car there is no break-in period are not. Instead, some owners of the new car was very slow, relatively injury car, sometimes counterproductive, therefore, we can go up according to the instructions of the car you can perform.
In addition, auto repair staff to remind car owners manual says 3000 km when the mileage of the new car, or two months, remember to drive back to the 4S shop to do the first insurance, replace the oil and oil grid This will protect the engine, driving will be more at ease.