Influence of hot sand on moisture and mucous membrane effect in sand mold casting (Qufu Longxiang Metallurgical Casting Accessories Co., LTD.)

Through the understanding of the sand casting process, the hot sand as a raw material will have a far-reaching impact on the entire process and its results, so the key to grasp in the sand casting is the correct use of hot sand. In addition, the temperature, auxiliary materials and other aspects must also pay more attention, otherwise it will make the molded casting meet the requirements, and it will also be a part of the loss for the enterprise.

First, the influence of hot sand on moisture in sand casting

In the sand casting, the step to do is to put the hot sand into the molding machine, but whether we have considered that once the hot sand enters the equipment, the water will be a lot of loss, in this case is bound to have a great impact on the performance of the sand.

Second, the influence of hot sand on the adhesive mold effect in sand casting

It is precisely because of the presence of hot sand that the water will be transformed into a condensed state, so the entire adhesive effect will also change. Especially after the mold, the hot sand will evaporate because of the evaporation of water, then the condensed sand will be directly on the core, and then reduce the strength of the core, and finally the quality of the whole casting may also be reduced.

Three, sand casting temperature control and the use of auxiliary materials

Because the influence of hot sand on the whole sand casting process is still very large, it is necessary to avoid the occurrence of problems in the right way, on the one hand, it is necessary to control the temperature of the old sand, generally maintained at about 50 degrees. If the temperature is high, it will reduce the cast product; However, if the temperature is low, it will interfere with the normal process of casting.

On the other hand, some auxiliary materials can be used and perfected to control them, so as not to cause some unnecessary trouble and affect the effect of the entire sand casting. At the same time, do not forget the addition of new sand, but also have a good grasp to make it play a better role.