Characteristics of high strength bolts
High strength bolts are made of high strength steel, or bolts that need to be applied with large preload, which can be called high strength bolts. High strength bolts are mostly used to connect bridges, rails, high pressure and ultra-high pressure equipment. The fracture of this kind of bolt is brittle fracture. In order to ensure the sealing of the vessel, the high-strength bolts used in ultra-high pressure equipment need to be prestressed.
Characteristics of high strength bolts:
1、 Good reliability. The zinc coating of high strength bolt is metallurgically bonded with the steel, so it becomes a part of the steel surface, so the durability of the coating is more reliable.
2、 Comprehensive protection, every part of the plating parts can be coated with zinc, even in the depression, sharp corner and hidden place can be fully protected.
3、 The cost of hot dip galvanizing is lower than that of other coatings.
4、 It is time-saving and labor-saving. The galvanizing process is faster than other coating construction methods, and can avoid the time required for painting on the site after installation.
5、 Durable, in suburban environment, the standard thickness of hot-dip galvanized anti rust can be maintained for more than 50 years without repair. In urban or offshore areas, the standard hot-dip galvanized anti rust coating can be maintained for 20 years without repair.
6、 The toughness of the coating is strong, and the zinc coating forms a special metallurgical structure, which can withstand mechanical damage during transportation and use.
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