According to the report of the media on the 27th, North Korea has developed new technologies and mass-produced new style heat pipes, which will help to further produce energy-saving equipment. Reported that the new heat pipe heat transfer speed several thousand times faster than other thermal devices, heat transfer capacity is also very large. This production technology is of great significance to the production of energy-saving equipment. It can increase the energy efficiency of heating equipment and geothermal and solar energy equipment to almost ideal values, resulting in extremely high economic benefits.
Researchers of the new heat pipe said, “We do not use foreign high-cost production equipment, but use conventional equipment and simple devices to develop a new heat pipe production technology, this technology is easy to use in a normal temperature environment. It is low cost, easy to use, and uses Extensive, highly praised by customers."
Reported that if the use of new heat pipe production of home and office heating tube radiator, heating efficiency can be increased by 85%, can also save more than 40% of the power; geothermal heat pipe heat pipe, can effectively recycle geothermal; large boiler installation Heat exchangers can increase power production, and its economic significance is very large.
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Lock washers with external teeth, also known as external tooth lock washers or external serrated lock washers, are a type of fastener used to prevent loosening or rotation of bolts, screws, or other threaded fasteners.
These washers have serrations or teeth on the outer edge, which bite into the mating surface or the underside of the fastener head when tightened. This creates friction and helps to prevent the fastener from loosening due to vibrations or other forces.
The external teeth on these washers are designed to dig into the material, providing a more secure grip compared to regular flat washers. They are commonly used in applications where there is a risk of fastener loosening, such as automotive, machinery, or construction industries.
Lock washers with external teeth are typically made from materials like steel, stainless steel, or other metal alloys. They are available in various sizes and can be used with different types of fasteners, depending on the specific requirements of the application.
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