The classification of epoxy resin adhesives has not yet been unified. Generally, they are classified according to their strength, heat resistance grade and characteristics.
How many days can I work to buy an iPhone 12 Pro: 4 days in Switzerland
How many days can I work to afford an Apple iPhone 12 Pro? Foreign media Picodi.com analyzed and compared the price of iPhone 12 Pro (128 GB) in various countries and the average local salary to calculate the number of working days required to purchase Apple’s new flagship.
IPhone 12 Pro 96-hour experience: Is the price increase still “really good”?
The iPhone 12 Pro is a product that exceeded expectations, at least in terms of popularity. The iPhone 12 Pro in our hand was purchased from the “scalper” at a price increase of 1,500 yuan. It is said that the price increase of the iPhone 12 Pro was as high as 3,000 yuan on the day of sale, which shows that consumers love the iPhone 12 Pro.
How is 5G applied to industrial production?
5G, edge computing, cloud computing, etc. represent the IT field, while industrial automation and machine equipment are the OT field. An important feature of the development of digital enterprises in the direction of “Industry 4.0” is the combination of IT and OT. In the past industrial 3.0/3.X era, OT and IT were separated, but now digital and intelligent enterprise IT and OT need to be integrated. This is the essence.
Process Measures and Operating Skills to Reduce Deformation of Aluminum Parts
There are many reasons for the deformation of aluminum parts, which are related to the material, the shape of the parts, and the production conditions.
Mold design ideas and processes
A set of reliable plastic mold design is mainly reflected in the quality of the molded plastic products (appearance quality and dimensional stability), convenient, rapid, and concise processing and manufacturing.
The specific production process of powder metallurgy
Most of the spring designs used in LCA are compression coil springs or extension coil springs. These two spring designs involve the following items.
14 taboos in the installation of distribution boxes
If the lighting distribution box (board) is used in a humid and dusty place, it is easy to mold and leak; in addition, if the wooden box (board) is not treated with flame retardant, it is easy to cause fire and is a hidden danger of insecurity.
Lightweight conveyor belts—Determination of relaxation
Many applications of lightweight conveyor belts require it to be tensioned first, and then to change its length by adjusting any rollers. In this case, the tension in the belt will change throughout the life of the belt.
What is IGES, STEP file – what is it used for?
What is IGES, STEP file – what is it used for? Introduction to IGES /STEP: IGES, STEP is a Cad file format that allows you to open a 3D model and edit it in any software. IGES and STEP are widely used neutral CAD formats that are accepted in all software. In IGES, the output is in the surface, while the STEP file retains the assembly hierarchy, and the output is a mixture of solids/volumes and surfaces (only solids are used in most cases).
What is a heat shrinkable tube?
What is a heat-shrinkable tube, a heat-shrinkable tube is a special material of plastic, which can shrink quickly at high temperatures. When we connect two wires. Put the heat shrink tube on the metal connection. Then use a heat gun to bake the heat shrink tube. It will shrink quickly and wrap around the metal joints, so that we don’t need to use tape to wrap it. Improve work efficiency, and the safety and reliability of the connection.
Major scientific and engineering problems in 2020
Recently, the China Association for Science and Technology released 10 scientific problems that have a guiding role in scientific development and 10 engineering problems that have a key role in technology and industry. What are these 20 questions? Let’s refer to it together!
What is the principle of a hydraulic system, and why a small force generates a large force?
The hydraulic system uses Pascal’s law in hydrostatics, uses oil or other liquids to transfer the pressure in the liquid, so as to realize the small pressure to control the large pressure, which is similar to the lever principle.
Analyze the cause of false welding of solder bars
The solder bar will appear in the soldering process. The main reason for this phenomenon is the poor reducibility or insufficient amount of the flux. Below, I will analyze it for you.
The future of each company is actually in the hands of 5% of star employees!
Employees are the precious wealth of an enterprise. An excellent company is bound to treat itsemployees as jewels in the palm .
What is on-site management?
As a manager, if you always want to solve problems in private, you will be incurring dereliction of duty that cannot fulfill your mission. An important principle of public management is that managers do not do obscure work, but are sound, colored, and powerful. Only by coming out can management be effectively improved and decision-making can be implemented in place.
5 positioning technologies for robots
With the continuous improvement of sensing technology, intelligent technology and computing technology, intelligent mobile robots must be able to play the role of human in production and life. So what are the mobile robot positioning technologies mainly involved? After summarizing, mobile robots currently mainly have these 5 positioning technologies.
“Captive” the virus in lithium batteries
American scientist Angela M. Belcher has developed such a new technology that can “captive” viruses in lithium batteries, let them work for us, and continue to produce power.
Intelligent driving, do you really understand it?
At present, the level of intelligent driving of various car companies is uneven.The Audi A8 claims to be able to achieve the highest level of L3 autonomous driving. Tesla said that its L2.5 level of autonomous driving is mature, and some companies abandon L3 and directly develop L4/L5 level automatic driving.
Solar sawdust drying
1. A large amount of smoke and dust should be emitted during drying, 2, You need to burn a lot of fuel in order to provide the corresponding heat.
Solar desalination (distillation)
The biggest problem of desalination is that it is expensive and energy consumption is high. This scheme uses solar thermal heat-collecting technology and solar green energy, which greatly reduces the energy consumption in the desalination process and provides a basis for further reducing desalination costs. For many current desalination technologies, this new slot solar catchment desalination system scheme is mainly aimed at the use of multi-stage flash ingenuation and low temperature multi-effect desalination technology.
Why should stones be laid under the rails?
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.
BASIC EQUIPMENT SPECIFICATIONS AND CONDITIONS
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.
25 classic chips in history that have shocked the world
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.