Argon protection device for die casting

The utility model belongs to the technical field of pouring equipment, and particularly relates to an argon protection device for die casting. According to the die casting argon protection device, the mounting ring unit, the opening plate unit and the gas inlet pipe unit are combined in order, and a specific using method is combined, so that the purpose of effectively using the die casting argon protection device is achieved. The utility model has the following advantages: firstly, the structure for molten steel pouring is reasonable and effective, and the normal molten steel die casting effect is not influenced; secondly, the argon adding structure is simple and efficient, the argon filling speed is high, the argon filling area is wide, the gas tightness of the device is good, and the argon usage amount can be relatively low; thirdly, the mounting structure of the air inlet pipe unit is stable enough, and the dismounting and replacing difficulty is moderate; and fourthly, the anti-oxidation basic effect of a