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Working principle of slow wire processing

 Slow wire walking, also called low-speed wire walking, is a kind of CNC machining machine tool that uses continuously moving fine metal wire as an electrode to pulse spark discharge on the workpiece to generate a high temperature of over 6000 degrees, ablate metal and cut into a workpiece. The principle of wire processing is the phenomenon that there is a gap between the wire electrode and the workpiece, and the metal is removed by continuous discharge. Since the slow-moving wire cutting machine adopts the method of wire electrode continuous feeding, that is, the wire electrode is processed during the movement, so even if the wire electrode is worn out, it can be continuously supplemented, so it can improve the machining accuracy of the parts and slow the wire. The surface roughness of the workpiece processed by the cutting machine can usually reach Ra=0.8μm and above, and the roundness error, linear error and dimensional error of the slow-moving wire cutting machine are much better t

Hydrostatic guideway of CNC machining lathe

The static pressure slide rail (TTW guide) of the CNC machining lathe transfers the oil with a certain pressure through the throttle to the oil cavity between the sliding surfaces of the slide rail (TTW guide) to form a pressure oil film to float the moving parts , Make the sliding rail (TTW guide) surface in a pure liquid friction state.   CNC machining General CNC machining usually refers to computer digital control precision machining, CNC machining lathe, CNC machining milling machine, CNC machining c17200   beryllium   copper   and milling machine, etc. The feed route of finishing is basically carried out along the part contour sequence. Therefore, the focus of determining the feed route is to determine the feed route of rough machining and idle stroke. In the numerical control processing, the control system issues instructions to make the tool perform various motions that meet the requirements, and the shape and size of the workpiece are expressed in the form of numbers and lette

Classification of CNC Machining Occupation Levels

1. Blue-collar layer:   That is, CNC machining operation technicians, proficient in machining and CNC machining process knowledge, proficient in the operation and manual programming of CNC machine tools (attributes: automated machine tools), understand automatic programming and simple maintenance of CNC machine tools (attributes: automated machine tools), such There is a large market demand for personnel, and they are suitable for operating workers of CNC machine tools (attributes: automated machine tools) in the workshop, but due to their single knowledge, their wages will not be much higher.   2. Gray collar layer:   One, CNC machining programmer:   Master the knowledge of 5 Axis CNC machining Aluminum   technology and the operation of CNC machine tools (attributes: automated machine tools), be familiar with the design and manufacturing expertise of complex molds (title: mother of industry), and be proficient in 3D CAD/CAM software, such as UG, GOOGLE PRO/E, etc. ; Familiar with CNC

Analysis of Electric Vehicle Electricity Recovery Technology

Have you ever thought that an electric car is actually a huge power bank? For example, when your mobile phone runs out of power, connect it to a port of an electric car to charge it. Similarly, not only mobile devices, but any other devices that use electricity as an energy source can get electricity from electric vehicles. Even when there is a power failure in your home, an electric car is the best backup power source. No need to fantasize about all this, Nissan has helped us realize it.

A few days ago, Nissan (Nissan) tested its Vehicle-To-Building technology and successfully used six Leaf electric vehicles to power its advanced R&D center in Atsugi. The combination of these 6 Leaf electric vehicles can reduce the electricity consumption of the R&D center during peak electricity consumption by 2.5%. Since Japan has also adopted a stepped peak-to-valley price algorithm, the electricity price during peak electricity consumption is slightly more expensive. With this rough calculation, the Nissan R&D Center can save 4,800 US dollars in electricity bills every year by using the electricity prepared in the Leaf electric car in advance.

From this point of view, it is an economical way to treat electric vehicles as a power reserve facility. Of course, in the Vehicle-To-Building technology, the system must ensure that the battery of the Leaf electric car is fully charged when the owner (usually a Nissan employee) is off work. However, I wonder if the developers of this technology have considered: What if someone leaves early? Another problem: charging and discharging the battery of an electric vehicle repeatedly in this way will inevitably reduce the life of the battery to a certain extent. For the laminated lithium-ion battery used by Leaf, every complete charge and discharge will cause the loss of battery raw materials, thereby reducing power. For the above problems, I believe that in the future, through the power management and scheduling mechanism, it will be completely resolved.

Nissan Leaf is the world's first pure electric vehicle that can be delivered for daily use. It is equipped with an electric motor with a maximum output of 80kW, a battery pack capacity of 24kW.h, and a cruising range of about 135km (EPA certification). Such a car can fully satisfy the daily use of urban residents. The 5-door hatchback design and the affordable price of around US$30,000 make it the best-selling pure electric vehicle in the North American market.

What can a 24kW.h battery be used for? In Japan, the average daily power consumption of a family is about 10-12kW.h. Therefore, a Leaf electric car can theoretically provide a family with 2 days of living electricity. This is another EV battery recycling technology Leaf-To-Home that Nissan is testing. Don't underestimate this use. In Japan, where earthquakes are frequent, power outages are an emergency that is inevitable, because Leaf’s electricity recovery can provide energy in times of crisis. From the macro level of the operation of a city, the number of electric vehicles is the reserve of backup power in the place. It is no exaggeration to say this. Of course, except for special circumstances, the Leaf-To-Home technology is still very useful in daily life. For example, when people go out on an outing, the power supply is often a headache.

The basic principle is to connect Leaf electric vehicles with the household power supply network through PCS (Power Control System). The Leaf's battery will provide a maximum power output of 6kW, so that it can ensure that the most power-consuming household appliances (such as microwave ovens, air conditioners, etc.) can also operate normally at the same time without tripping. Such a system is of great significance for building smart, low-carbon homes, because it includes a hardware such as a car as a household appliance. It is reported that the installation price of the Leaf-To-Home system is 330,000 yen (about 19,500 yuan), which does not sound cheap.

The automotive parts and parts machining, PTJ Shop offers the highest degree of OEM service with a basis of 10+ years experience serving the automotive industry. Our automotive precision shop and experts deliver confidence. We have perfected the art of producing large component volumes with complete JIT reliability, backed by the quality and long-term reliability our customers expect.

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