26
2021-10
Comparison of automobile parts and fuel tank materials
Comparison of fuel tank materials of automobile parts:In the selection of fuel tank materials, there are obvious differences between the two vehicles. Lang uses plastic fuel tank and Kia K3 uses metal fuel tank. From the perspective of safety, the toughness and strength of plastic fuel tank are usually better than metal fuel tank. Wenzhou automobile is equipped with plastic fuel tank, and it is not as easy to produce sparks as metal fuel tank in case of collision, friction or extrusion, so it is safer as a carrier of fuel. In addition, plastic fuel tanks are lighter and more plastic than metal fuel tanks. As for the cost, the production process and equipment of the two are completely different. Under the condition of mass production, the gap between the oil tanks of the two materials will not be very large.When the plastic oil tank was just launched, it was easy to age and had the problem of oil leakage, so it was not widely used. However, with the development of material science and technology, the plastic fuel tanks produced now have polymer oil resistant layers, and the original problems of oil leakage and aging have been comprehensively improved. Therefore, at present, more and more manufacturers begin to use plastic fuel tanks on cars.In fact, most of Beijing Hyundai's models are "loyal fans" of metal fuel tanks. From old Elantra to old Sonata, Yuxiang and Lingxiang to today's Sonata 8, they all use metal fuel tanks. Now, Langdong has finally abandoned this tradition and used a "more fashionable" plastic fuel tank, which can be described as a great progress.
19
2021-10
How to keep the filter clean for turbocharged engine use
With more and more T-shaped cars on the market, turbocharging is becoming more and more familiar to car owners. In front of this powerful engine, there are still many car owners muttering, and Mr. Li is one of them. How to choose between turbo engine and naturally aspirated engine?The power can be increased by more than 40%Compared with natural intake engine, turbocharging has obvious advantages in power. The maximum power output with the same displacement can be more than 40%. "The biggest advantage of turbocharging is that it can greatly improve the power and torque of the engine without increasing the engine displacement. After an engine is equipped with a turbocharger, the maximum power output can be increased by about 40% or more compared with that without a turbocharger." master Mo also acknowledged the benefits of turbocharging, The turbine increases the daily use and maintenance of the engine, which will be more troublesome. "Compared with naturally aspirated engines, turbocharged engines have more stringent requirements for working environment and maintenance."Maintenance is not troublesomeAlthough the turbocharged engine will be a little delicate, it is very obedient as long as it is properly maintained and used. Master Mo said that usually just pay a little attention and it's not troublesome. "First, try to choose the manufacturer's designated or high-grade synthetic oil during maintenance; then, the engine oil filter and air filter must be kept clean." in addition, Mo Douwen also said that the filter should be cleaned or replaced regularly.
19
2021-10
The "Three Guarantees for household vehicles" has been officially implemented since October 1, 2013
The provisions on the liability for repair, replacement and return of household automotive products (hereinafter referred to as the provisions on three guarantees for household automotive products) promulgated by AQSIQ on January 15, 2013 has been officially implemented since October 1, 2013.The "Three Guarantees for household vehicles" clearly stipulates the "warranty repair period" and "Three Guarantees validity period" of household automotive products. The warranty repair period of household automotive products shall not be less than 3 years or 60000 kilometers, whichever comes first; The validity period of three guarantees for household automotive products shall not be less than 2 years or 50000 kilometers, whichever comes first. The warranty period and three guarantee period of household automotive products shall be calculated from the date when the Seller issues the purchase invoice. During the warranty period of household automotive products, if the household automotive products have product quality problems, the consumer shall be repaired free of charge by the repairer with the three guarantee certificate (including man hour fee and material fee); Within the validity period of three guarantees for household automotive products, if the conditions for replacement and return are met, the consumer shall be replaced and returned by the seller on the strength of Three Guarantees certificate and car purchase invoice.For the most concerned return and exchange conditions, AQSIQ listed four specific situations in the new regulations: first, if the steering system fails, the braking system fails, the body cracks and fuel leakage occur within 60 days after the Seller issues the purchase invoice or within 3000 kilometers of driving distance, you can choose to exchange or return the goods; Second, for serious safety performance faults that have been repaired twice in total and still have not been eliminated, or new serious safety performance faults occur, you can choose to return or exchange goods; Third, if the engine transmission is replaced twice in total, or their same main parts are replaced twice in total and still can not be used normally, you can choose to return or replace them; Fourth, the same main parts of the steering system, braking system, suspension system, front and rear strips and body have been replaced twice and still can not be used normally. Consumers can also choose to exchange or return goods. In addition, the new regulations also provide for the exchange of goods due to the repair time limit and the return of goods due to the failure of exchange.
24
2021-03
Troubleshooting of automobile bearing
Using the sound characteristics of automobile bearings, only in this way can we accurately judge whether there are abnormalities. When the rolling automobile bearings are working, under normal circumstances, they operate smoothly, briskly, without stagnation, the sound is harmonious without noise, and you can hear uniform and continuous "crash" sound or low "roar". The noise intensity is not high. Now that we know the sound emitted by fag bearing under normal conditions, we can judge the causes of abnormal conditions according to these standards:First, when the automobile bearing is heard to emit a uniform and continuous "hissing", this sound is generated by the rotation of the rolling body in the inner and outer figure, including the irregular metal vibration sound independent of the speed. Generally, the amount of grease added in the bearing is insufficient and should be supplemented. If the equipment is shut down for a long time, especially under the low temperature in winter, the automobile bearing sometimes makes a "hissing" sound during operation, which is related to the smaller radial clearance of automobile bearing and the smaller penetration of lubricating grease. The clearance of automobile bearing shall be properly adjusted and new grease with greater penetration shall be replaced.Second, when it is found that the automobile bearing emits a uniform periodic "Ho Lo" in the continuous "Hua Hua" sound, this sound is caused by the scars, grooves and corrosion spots on the rolling element and the inner and outer ring raceways. The period of sound is directly proportional to the speed of fag bearing. Automobile bearings shall be replaced.Third, when an automobile bearing sends out a discontinuous "stem", this sound is caused by the rupture of the cage or inner and outer rings. The vehicle must be stopped immediately to replace the bearings.Fourth, when it is found that the automobile bearing sends out irregular and uneven "chucking", this sound is caused by impurities such as iron filings and sand particles falling into the automobile bearing. The sound intensity is small and has no relationship with the number of revolutions. Fag bearings shall be cleaned, re greased or changed.Fifth, see the continuous and irregular "rustle" of the automobile bearing during work. This sound is generally related to the loose fit between the inner ring and the shaft or the loose fit between the outer ring and the bearing hole. When the sound intensity is high, the matching relationship of fag bearing shall be checked, and the problems found shall be repaired in time.
09
2021-02
Warmly celebrate the launch of Wuxi huaerzhong Auto Parts Co., Ltd
Warmly celebrate the launch of Wuxi huaerzhong Auto Parts Co., Ltd
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