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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

How Do Cnc Swiss Machines Work

How Do Cnc Swiss Machines Work Save 0 What Is Swiss Machine –The full name of the walking CNC lathe, it can also be called the spindle box mobile CNC automatic lathe, the economical turning and milling compound machine tool or the slitting lathe. It belongs to precision machining equipment, which can complete compound  machining such as turning, milling, drilling, boring, tapping, and engraving at one time. It is mainly used for batch  machining of precision hardware and special-shaped shafts. This machine tool first originated in Germany and Switzerland. In the early stage, it was mainly used for precision machining of military equipment. With the continuous development and expansion of industrialization, due to the urgent needs of the market, it was gradually applied to the  machining of civilian products; the development of similar machine tools in Japan and South Korea Earlier than China, it was mainly used in the military industry in the early days. After the war, it was gradually

Spring Design Attention And Roll Forming Method

Spring Design Attention And Roll Forming Method The coiling characteristics and methods of springs are divided into cold coiling method and hot coiling method. Cold winding method: When the diameter of the spring wire is less than 8mm, the cold winding method is adopted. High-quality carbon spring steel wire is usually first cold drawn and then heat treated. After winding, it is generally not quenched, but only tempered at low temperature to eliminate the internal stress during winding. Hot-rolling method: Springs with larger diameter (>8mm) spring wire should use hot-rolling method. Hot rolled springs must be quenched and tempered at medium temperature. The Design Process Of Various Springs ·          Installation space: When designing a  compression spring , it is necessary to have a clear understanding of the space required for the installation of the spring, in order to effectively grasp the basic manufacturing conditions of the compression spring, including the outer diam

Large-scale Rongtian coal mine equipment has its own advantages and disadvantages

  Large-scale Rongtian coal mine equipment selection and development of open-pit mining technology and equipment. A brief comparison of any mining technology currently used in various countries has its own advantages and disadvantages. Which mining technology to use depends on the occurrence conditions of the ore body, including the nature of the covering, the hardness, and the water content. A comprehensive comparison of factors such as the price of equipment in climatic conditions such as the size and the comprehensive benefits, the convenience of technical reliability management, etc., determines a plan with good economic benefits.

The single-bucket-one car solution has the advantages of low initial investment, convenient and flexible use, fast construction speed, small infrastructure, high work efficiency, and a wide range of applications. The main disadvantage is the high production cost, among which the high cost of automobile operation is the main factor. The weight of the car is about 42 of the total weight. The fuel is wasted, and the fuel consumption is high. The fuel cost is higher than the electricity. The price of spare parts and tires is higher than that of the car. It is generally believed that the transportation distance of automobiles should not be greater than that otherwise the production cost will be higher, and the shortcomings will be more obvious because of the coal price and equipment manufacturing capacity of our country. The main advantages of the continuous process plan: a bucket wheel excavator, a belt conveyor, and a dumper are the continuous production process, large capacity, high degree of automation, high work efficiency, and low production cost. The main disadvantage is that the scope of application is limited, the initial investment is high, and the control system is difficult. The bucket wheel is heavy in weight, large in size, difficult to design, and expensive in equipment. Compared with a single bucket electric shovel of the same capacity, the price is twice that of the latter. When the compressive strength of the material is greater, it is difficult to cut, and it is difficult to cut when it contains large pieces of gravel. Frozen sticking or bonding will cause a series of failures of the belt machine. If the water content is large, it is not easy to dry, it is not easy to walk, and it is easier to bond. Multiple equipments form a continuous operation line, and if any one of them fails, the whole line will be shut down, which is difficult to control automatically. Its ideal application condition is that the material is soft, does not contain water, and does not freeze. The semi-continuous process, the basic form is a single bucket, a mobile crusher, a belt conveyor, and a dumper. But there can be multiple ways of equipment coordination. The characteristic is that there is no need to use bucket wheels, or less use of cars. This solution overcomes the shortcomings of the above two processes, and has received increasing attention from various countries. At present, our country is only used for coal mining, not for stripping.

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