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According to the official website of the University of Manchester on the 20th reported that the school scientists developed the world's first "molecular robot" that can receive chemical instructions and complete the assembly of molecules and other basic tasks, the future can be used for research and development of drugs, the design of advanced manufacturing technology and build molecular assembly Line and molecular factory.
In his paper published in Nature, a team led by Professor David Ray of the Faculty of Chemistry at the University of Manchester introduced that a total of 150 atoms, such as carbon, hydrogen, oxygen and nitrogen, are only about a millionth of a millimeter in size, Ten billion such robots pile up, only a salt so big. But such a tiny molecular robot, but it has a robot arm, able to manipulate a single molecule according to the instructions, with the robot arm to build molecular products.
Although the construction of such molecular robots is extremely complex, the technology used by Ray's team is based on simple chemical reactions. The scientific principles are all about atomic-molecular interactions and how small molecules build chemistry such as macromolecules. Ray explained that all matter is made of molecules, and that the basic units of atoms are atoms, much like the process of making a LEGO robot, except that it is replaced by atoms this time, in the same way as synthetic processes like pharmaceuticals and plastics.
The accepted instructions are chemical reactions in specific solutions. The scientists send different chemical instructions to molecular robots by manipulating and programming different chemical reactions. The robot reacts to these instructions and performs some basic tasks. "Once the molecular robots have been synthesized, scientists send chemical instructions to them through chemical reactions, telling computer programs what they need to do at any given time."
Similar to the robot assembly of car body parts on a car assembly line, molecular robots can assemble and immobilize molecular assemblies in different ways to create different molecular products. And because of their small size, these molecular robots have many advantages, which can reduce material requirements, speed drug development, reduce energy consumption and promote product miniaturization. Therefore, it is expected to bring exciting applications in many fields in the future.
A press brake is a piece of manufacturing equipment that is used to bend sheet metal. A press brake is typically narrow and long so that large pieces of sheet metal can be bent by it. A press brake bends sheet metal by lowering a punch onto sheet metal that has been positioned on top of a die. The metal may be bent several times by a press brake until the desired form has been achieved.
Press brakes can make a variety of different bends on many different types of metals. When setting up a bending process, it is important to consider the metal type being bent, the die, the punch, and the bending force.
The metal type is important to understand because of the differing physical properties among metals. For instance, a high carbon steel will generally be less bendable by a press brake than many aluminum alloys because of the differences in ductility and strength. Metals typically have a recommended minimum bend radius that the material can be bent to without damaging it.
The die and the punch used on the press brake both have a large impact on the bending process. The die is hollow material that the metal is placed on top of prior to bending. It is a very hard and strong material that is near in shape to the desired shape of the metal being bent. The punch is a solid material that is lowered down onto the metal. Since the pressing action of the punch onto the metal and the die are what causes the metal to bend, both shapes must be accurately suited to the bending job. The correct metal shape following a press brake operation is dependent on the size and shape of the punches and dies. The dies and the punches are typically designed in such a way that they can be interchanged easily to accommodate a wide array of jobs.
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