
Second, the backwardness of technology has greatly hindered the development of China's die-casting mold industry. Finally, the supporting system for the die-casting mold industry in China is not yet adequate. Domestic die-casting molds can only win the competition in foreign markets only by intensifying research and development, adjusting development methods, and solving the problems in the above three aspects.
In casting production, sand casting is the most widely used, and about 80% of the world's die castings use sand molds such as wood molds. At present, there are more than 30,000 foundry companies in China. In 2011, the annual output of China's die castings exceeded 40 million tons, which consumed a lot of wood and metal.
Therefore, the newly developed digital dieless casting precision forming technology and equipment are directly processed from the sand type. The technician only needs to use the computer to make the 3D CAD model of the required die casting, then input the automatic planning path to the dieless casting precision forming machine, and other work can be done by the machine. It is reported that the use of this die-casting technology can shorten the development time by 50% to 80%, and the corresponding manufacturing costs can also be reduced by 30%-50%. Therefore, digital die casting precision forming technology has been called the revolution of die casting technology.
Formic ACID has strong reducing ability and is a by-product of coking. Adding formic acid is more effective than adding inorganic acids such as H2SO4 and HCL, because inorganic acids have only acidification effect, and formic acid can not only reduce the pH value of silage, but also inhibit Plant respiration and poor microbial fermentation.
Formic Acid In Water,Formic Acid To Oxalic Acid,Acetic Acid To Formic Acid,Formic Acid And Acetic Acid
ZIBO JUNTU INTERNATIONAL TRADE CO.,LTD , https://www.sdjuntuchem.com