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2024
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06
The development and origin of concrete: below
After the 1970s, with the application of light aggregates, a round groove horizontal shaft type forced mixer, also known as a horizontal shaft type concrete mixer, appeared.It is divided into two types: single-horizontal shaft type and double-horizontal shaft type, and has the characteristics of both self-falling and forced stirring.It is a new type of mixer developed in the 1970s. It can be divided into single-axis and double-axis. This form of mixer has both self-falling and forced mixing functions. The linear speed of the mixing blade is smaller than that of the vortex slurry type, so the wear resistance is smaller and higher than that of the vortex slurry type.The single-horizontal shaft mixer is made of Germany. It has the advantages of compact structure, low power consumption, good wear resistance of the blade liner, can start at full load and has the ability to stir lightweight concrete.My country has also introduced prototypes to the company. The double horizontal shaft mixer is a new model that has gradually developed with the improvement of concrete construction technology.Foreign countries began to appear in the United States and Germany in the late 1940s, but due to the immaturity of shaft end sealing technology, its development is basically at a standstill.
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