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What are the main characteristics of the rack
We mainly introduce the main features of various racks
(1) Because the rack tooth profile is a straight line, each point on the tooth profile has the same pressure angle and is equal to the inclination angle of the tooth profile. This angle is called the tooth shape angle, and the standard value is 20 °.
Characteristics of Dalian Gear Rack Meshing Transmission
In fact, the combination of rack and pinion transmission is a special method. The chain wheel's bar is like a stretched and stretched one. This kind of transmission is not only a circular movement completed by itself, but also a form of force transmission that it can run on the bar.
What are the main components of Dalian track components?
Dalian track components are the general designation of the parts, components and some materials that make up the track structure.
Selection of raw materials for forging
The recrystallization temperature of steel is about 460 ℃, but 800 ℃ is generally used as the dividing line, and hot forging is higher than 800 ℃; The temperature between 300 ℃ and 800 ℃ is called warm forging or semi hot forging. Forging can be divided into cold forging and hot forging according to the temperature of the blank during processing.
Performance requirements for forgings processed by forging
In forging production, in addition to ensuring the required shape and size of forgings, it must also meet the performance requirements of forgings in the process of use, which mainly include: strength index, plasticity index, impact toughness, fatigue strength, initial fracture and stress corrosion resistance. For parts working at high temperature, there are also high-temperature instantaneous tensile properties, durability and thermal fatigue properties.
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