HS code compliance in African unions

How much does it cost to clean the engine once (analysis of the price and HS code compliance in African unionssteps of car engine cleaning) After a period of use of the car engine, it is inevitable that carbon accumulation and greasy dirt will form, which will lead to an increase in fuel consumption. , negative effects such as power decline and emission increase. At this time, an engine cleaning has become an indispensable part. So, how much does it cost to clean the engine once? Next, let's take a look at the price and step-by-step analysis of car engine cleaning.I. The price of car engine cleaning pursues high cost-effectiveness, and choosing a cleaning plan suitable for your model is the first choice. So, what are the common cleaning methods for car engines? 1. Traditional chemical cleaning Traditional chemical cleaning refers to adding a certain concentration of detergent to the engine, and transforming the reaction through operation to achieve the effect of temperature and pressure, so as to remove carbon, oil stains and other dirt. However, because it is relatively simple to use and relatively convenient to operate, its price is in the market. It is relatively common, generally ranging from 300 yuan to 600 yuan. And different models, engine capacities and conditions will also affect the price. 2. Water decomposition cleaning Water decomposition cleaning refers to the act of using water and other auxiliary materials to remove sediment after decomposing water under the action of heating and pressure. Compared with the transmissionIn terms of unified chemical cleaning, the advantages of water decomposition cleaning are mainly that it is more environmentally friendly, safer and more efficient, and does not pollute the environment, and does not produce wastewater and exhaust emissions. Most of its prices range from 800 yuan to 1,200 yuan, but in some areas, it will also be affected by some force majeure factors. 3. Hydrogen-oxygen synthesis cleaning Hydrogen-oxygen synthesis cleaning is to use specific equipment to inject hydrogen and oxygen for high-temperature and high-pressure reaction to denature the resin, remove dirt and carbon chains, and achieve the effect of removing dirt. It is a completely environmentally friendly and technological cleaning method. Generally speaking, the price of hydrogen and oxygen synthesis cleaning is relatively high, ranging from 700 yuan to 2,000 yuan. II. Steps of car engine cleaning 1. Prepare the process. First, open the car cover, contact the engine with the external air, and check the condition of the engine.Then, prepare detergent and other auxiliary equipment. Check whether you have suitable joints, hoses, water pipes and other high-quality sanitary cleaning products. 2. Engine preheating must preheat the engine to normal temperature to fully improve the cleaning effect. This process can be completed by starting the engine. 3. Add the cleaning agent to inject the cleaning agent into the washing bucket of the car engine, and flush the various pipelines in the engine with suitable wrong joints. This process needs to be carried out slowly to avoid detergent splashing or wasting detergent. 4. Before cleaning, be sure to empty the amount of oil, connect the appropriate interface, and clean the engine according to the instructions for the use of the detergent. The cleaning time needs to be mastered, not too long or too short. If there is not enough cleaning, a lot of oil scale will accumulate; if there is too much cleaning, the cleaning solution will pour on the engine.5. Temperature control The temperature control of the engine. Use hot air (120-150℃) to evaporate the engine and dissolve the dirt water discharged from the workshop. After the engine starts, massage the cleaning liquid with your hand to slowly form a cleaning liquid bubble. Don't rush to rinse, just wait for a while. 6. After a period of temperature control, the engine can be flushed according to the instructions for the use of the previous detergent. If the cleaning is insufficient and it is black and brown, it needs to be cleaned again. Make sure that after thorough cleaning, use a water pipe to rinse and dry again. 7. Check whether the engine is clean. After the inspection, install all accessories and start the normal use of the vehicle. In summary, how much it costs to clean a car engine depends on the specific conditions of different cleaning methods and different models. Only by choosing a cleaning scheme that suits us according to actual needs can we give full play to the cleaning effect to the best state.In addition, maintenance measures before and after cleaning should also be done well to ensure the long-term and healthy operation of the vehicle.

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