Stud Welding Gun is a metal stud or similar parts, and discharged through the instantaneous pressure, the end face is welded to the welding workpiece.
Depending on the stud welding works, generally divided into storage stud welding and arc stud welding stud welding two categories.
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In automotive life, you may encounter various minor glitches and problems, even if the same car is different from the problem encountered by different owners. The following are the differences in the use of car life. The following masters have sorted out the questions that are relatively high on the Q&A platform of the auto masters. Why do you frequently skip fire when the car refuels?
Why do you often jump guns when you are refueling? Is there a gas station problem or a fuel tank problem? On the question of car fueling, there are many words on the Internet. Today we do not discuss right or wrong. We only discuss what happens when the car refuels. Throw the gun is a normal phenomenon after the car tank is full, generally after the car tank is full, the oil gun will automatically stop the refueling, so as to avoid overflow waste phenomenon. However, many vehicle owners report that the fuel tank has not been filled up when adding gasoline. However, the phenomenon of jumping guns frequently occurs on oil guns. Is this normal? Where is the key to the problem? Gas station or petrol tank?
Before you jump into the gun, you first need to add fuel tanks. When you are refueling, you are most concerned about the amount of oil you added this time, not how much you have added. In fact, the size of the fuel tank is a standard, the general car's fuel tanks are around 40L-80L, some large SUVs are equipped with spare fuel tanks are usually around 10L. For the structure of the fuel tank, the owner does not need to know too much about it, and the model of the tank is also different. The 50L tank generally has a capacity of more than 50L, because there is a need to reserve some space for the gasoline steam above the tank. The purpose is to avoid excessive pressure in the tank, and there will be a pipeline connection to collect fuel vapor at the top. Carbon canister. Although the carbon canister is a very inconspicuous part, it is a very important component. It directly determines whether the oil gun will jump frequently during the refueling process (plus 3-4 jumps at a time).
The principle of the oil gun jump gun There is a small hole near the gun nozzle of the oil gun. When the liquid level of the gasoline oil blocks the small hole, the principle of negative pressure is generated due to the fast flowing liquid. Simply put, fast-flowing gasoline will generate a certain amount of negative pressure around the gas (gas flow quickly takes away nearby air). When the fuel is refueled normally, the small holes in the front of the oil gun will continuously suck in air and maintain a balance once the car is added. When the oil is full, the small hole is blocked and a negative pressure is generated in the vacuum chamber inside the oil gun, which directly acts on the switch-related components to achieve the purpose of closing the oil gun (as shown in the above figure).
Why do I often shoot a gun when refueling? Whether or not the fuel jumper is related to the temperature of the environment, the quality of the gasoline, and the cause of the oil gun itself. Of course, these are the factors of the gas station itself. The car itself also has certain reasons, in other words, failure. In the process of repairing a car, there are often owners who check for a shot when refueling. In fact, the reason is simply that the canister is blocked.
The above mentioned that there is a root pipe directly to the canister at the top of the tank. The main function of the canister is to use the activated carbon to adsorb and recover the gasoline vapor (to prevent the gasoline vapor from being directly discharged into the atmosphere) to relieve the internal pressure of the fuel tank. Once the canister is clogged, the internal pressure of the fuel tank will increase when the fuel is refueled, causing the oil gun to skip the gun early. If you do not clear the canister, this phenomenon will not disappear. So when you find that the oil gun frequently jumps when you refuel, you should go to the repair shop to check if it is a problem with the canister.
The emergence and development of stud welding only after decades of course, with full cross-section welded stud welding, standardized operation, high efficiency and reliable quality advantages. With the continuous development of the technology has been widely used in the industrial field.
