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I. Overview of Electric Vehicle Noise Problems Electric vehicles have gained popularity due to their environmental - friendliness and convenience. However, the noise problem is prominent, which not only disturbs driving, impairs hearing, bu....
Differences Between Low- and High-Carbon Steel Steel, as the cornerstone of modern industry, comes in a wide variety of types with different properties. Among them, the difference in welding performance between low - carbon steel and high -....
The new - structure C70E general - purpose gondola car is composed of parts such as the center sill, underframe, car body, and side wall. The axle load of the car is 23t, the load capacity is 70t, the length of the car reaches 13,976mm, and....
I. Importance and Current Situation of Dimension Marking In the field of mechanical design, dimension marking is regarded as the language of engineering drawings, and its importance is self - evident. It not only affects the convenience of....
A high-strength bolt that can withstand 18 tons of weight is incredible! Bolts made of high-strength steel or requiring a larger preload can be called high-strength bolts. High-strength bolts are mostly used for connections in bridges, rail....
On March 21st, the Ninth Session of the First Mem)ber Congress and the Ninth Session of the First Council Meeting of the Fasteners Branch of the China General Machinery Components Industry Association was grandly held in Hangzhou, Zhejiang.....
Cold heading is a forging method that uses dies to upset metal bar stock into shape at room tem)perature, typically used for manufacturing the heads of screws, bolts, rivets, etc. It can reduce or replace cutting operations. The materials f....
The working principle of expansion bolts is actually quite simple: they utilize the expansion characteristics of the expansion sleeve to achieve fixation. When the bolt is tightened, the expansion sleeve expands outward, creating friction w....
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