We often see a lot of smaller stones on some railway tracks. Do these stones have any effect? These stones are called “ballasts” in the industry. Ballast, sleepers, steel rails, etc. together form a rail system. These ballasts played an important role in the rail system.

Contractor hereby represents and warrants that the construction materials being provided or used by contractor or any subcontractor in connection with the project covered by this contract do not contain asbestos, glass, or any hazardous substance.

Fixture is a kind of technological equipment for clamping workpieces, which is widely used in the cutting process, heat treatment, assembly, welding and inspection of mechanical manufacturing process. The fixtures used on metal cutting machine tools are collectively called machine tool fixtures.

In the half century that integrated circuits have dominated, many outstanding microchips have been born out of people’s disbelief, but of these, only a small part have become the best of them.

For companies with “quality happiness”, they all have to abide by some basic principles. And for those companies with “unfortunate quality”, every family has a hard-to-read story, which is hard to say!

In the reliability design of hardware circuits, the following 8 key points are crucial. Each key point is analyzed in detail based on specific engineering examples.

Why can Chinese rockets go to Air space, but the chip, software? Because the United States controls the foundation of manufacturing, this scene can be called a bottom draw. If it is said that in terms of chip production, domestic companies can still cope with some scenarios, but China is far behind in terms of software. The key point is that the software is actually the upstream of production, which means that the United States has not only stuck China’s neck but also given the head. 

When the linear system is actually used, the load calculation should be performed first. It is not easy to find the load in linear reciprocating motion by calculation, because there is vibration or shock during the movement, and the distribution of vibration or shock relative to the linear system must also be fully considered. In addition, the operating temperature will also have a great impact on life. Adding these conditions together, the above calculation formula becomes the following formula.

Compared with traditional manufacturing, smart manufacturing has great innovations in product design, processing, manufacturing management and services.

From smartphones in your pockets to the huge data centers that “power” the Internet, from electric scooters to supersonic aircraft, from pacemakers to weather-forecast inglises , inside every device, invisible or little known, this tiny technology makes it possible, it’s called semiconductors.

Sitting in the car, igniting the car, stepping on the accelerator and starting, this is how common we are. However, the process of how a car engine starts from standstill to run is probably not well understood by many people. The following moving pictures detail the process of the car from standstill to start. It is intuitive and obvious. After reading, it will definitely make you know more about the car!

The automatic mask production line, also known as the one-to-three mask production line, consists of a mask body machine and three earband welding machines.

The reliability of the rolling linear guide pair refers to the ability of the product to complete the specified function within the specified time and under the specified conditions. These “three regulations” are the core of the reliability concept.