黄鹤楼香烟1916价格,caster香烟,黄金眼香烟,龙凤呈祥

In the smelting of aluminum alloys, refining agents are added to remove the gas in the melt, thereby increasing the density of aluminum hydraulic casting. In addition, the refining agent can also remove impurities in the aluminum alloy melt and make the melt more pure. After adding the refining agent, a layer of scum can be formed on the liquid surface to avoid contact oxidation with air.

Removal of impurities is to achieve the purpose of refining. The refining agents that are often used include * salt, dehydration * zinc, * manganese, * iron, etc., and degas and remove slag in time. It is mainly to separate hydrogen, add it at high temperature, and then react to remove the gas in time to achieve the purpose of refining. The amount of refining agent added needs to be controlled and accurately calculated before adding.

In addition to adding refining agent in the smelting of aluminum alloy melt, covering agent, slag cleaning agent, etc. are also added. The refining agent is added when the aluminum alloy melt reaches 720 degrees, and it is pressed to the bottom with a tool and moved slowly until no bubbling. . The hydrogen in the aluminum alloy melt can be cleaned in time, and then the slag cleaning agent can be added. It is necessary to use tools for full stirring to clean up impurities in time. In addition, a covering agent must be sprinkled on the surface to prevent hydrogen in the air from entering the aluminum melt and causing re-pollution.

The refining agent plays a very important role in the smelting of aluminum alloy. The manufacturer should add it according to the needs. Pay attention to the control of the problem during the addition process. It must be operated by the ** personnel to ensure the accuracy of the operation. Our company has been engaged in the production and sales of refining agents for a long time. It has advanced production technology, which can guarantee the quality of refining agents and has high purity. Customers can choose with confidence.