The casting industry was upgraded

In China, the annual output of castings has reached 110,000T, the main production of molding sand is mainly by hard sand, ester hardening alkali phenolic resin self-hardening sand, ester hardening water glass sand and so on. 8000000 tons of steel casting is made of water glass sand molding (core) process, and the rest is alkali phenolic aldehyde and resin sand. Because of its high quality, high quality, high precision and high performance requirements, it is difficult to meet the requirements of high quality, high precision and high performance. Many large and medium-sized steel castings have been selected. With the continuous development of clean, energy-saving, lightweight, digital, intelligent, it has become the steel industry development, low carbon

In China, the annual output of steel casting has reached 110,000T, the main production of molding sand is mainly by hard sand, ester hardening alkali phenolic resin self-hardening sand, ester hardening water glass sand and so on. 8000000 tons of steel casting is made of water glass sand molding (core) process, and the rest is alkali phenolic aldehyde and resin sand. Because of its high quality, high quality, high precision and high performance requirements, it is difficult to meet the requirements of high quality, high precision and high performance. Many large and medium-sized steel castings have been selected. With the continuous development of clean, energy saving, lightweight, digital and intelligent, it has become the primary focus of steel industry development, low carbon emissions, energy saving and low pollution.

The surface sand of large steel casting is selected as special sand such as chromite ore, and the price of sand is much higher. Therefore, the separation technology of chrome sand and quartz sand regeneration system is also a key technology. However, pearl sand will be used instead of zirconium sand in the casting mold core.

Now, ester hardening water glass sand has been recognized as a very likely to complete the green sand casting production of steel casting products. It is colorless, tasteless, non-toxic, in the sand mixing, molding, casting and sand production process does not occur pungent odor and toxic gases, no harm to the human body, and good casting performance, etc., in the casting industry has been widely recognized. But the defect is difficult to regenerate, resulting in greater solid pollution. If the recycling problem of water glass sand can be solved, water glass sand casting will first enter the ranks of green casting, and the need to pay attention to the improvement and promotion of casting equipment.

In the face of the huge demand for good and large steel castings in our country in the future, foreign manufacturers are accelerating, with the production capacity of intelligent casting equipment to win the development of our market, domestic enterprises should seize the opportunities, meet the challenges, and take active measures in the competition.