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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

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

Elimination of Gear Backlash in CNC Machining Feed System

Elimination of Gear Backlash in CNC Machining Feed System   The transmission gear in the feed system of the CNC machining machine tool must eliminate the transmission gap between the meshing gears as much as possible, otherwise the motion will lag behind the command signal after each reversal of the feed system, which will affect the machining accuracy (accuracy) ). There are the following two common methods for CNC machining machine tools to eliminate the transmission gear gap.   1. Rigidity adjustment method   The rigid adjustment method is an adjustment method that cannot be automatically compensated for the tooth side clearance after adjustment. Therefore, the pitch tolerance and tooth thickness of the gear must be strictly controlled, otherwise the flexibility of the transmission will be affected. This adjustment method has a relatively simple structure and a better transmission rigidity.   (1) Eccentric shaft adjustment method   As shown in Figure 610, the gear 1 is mounted on th

Liquid-crystal display (LCD) Over View

LCD Display History:

Liquid-crystal display (LCD) was invented in 1964 at RCA Laboratories in Princeton, NJ. In 1970, twisted-nematic (TN) mode of operation was discovered, which gave LCD the first commercial success. The LCD manufacturers supplied small-size displays to portable products such as digital watches and pocket calculators. In 1988, Sharp Corporation demonstrated a 14-in. active-matrix full-color full-motion display using a TFT (thin-film-transistor) array. Observing this, Japan launched a true LCD industry. Large-size displays were first supplied to personal computers and then to television receivers. In the second half of 1990s, the industry has moved to Korea and Taiwan.

LCD display

LCD display

Industrial Display Systems:

Industrial Display Systems provide a wide range of reliable displays from 5.7″ to 55″ including LCD displays, touch screen panels, outdoor displays and digital signage displays, and a series of industrial monitors including open frame monitors and panel mount monitors, which work perfectly with embedded boards and systems to fulfill various application needs.

LCD Display Size:

On 2D displays, such as computer monitors and TVs, the display size (or viewable image size or VIS) is the physical size of the area where pictures and videos are displayed. The size of a screen is usually described by the length of its diagonal, which is the distance between opposite corners, usually in inches. It is also sometimes called the physical image size to distinguish it from the "logical image size," which describes a screen's display resolution and is measured in pixels. 

LCD size

LCD size

LCD Monitors:

Liquid crystal displays are flat panel monitors which modify a white backlight by creating a barrier of millions of liquid crystals which can adjust which color is ultimately displayed to the end user.

Application of LCD (liquid crystal display):

  1. The LCDs are commonly used in all the digital wrist watches for displaying time.
  2. The LCD (liquid crystal display) is used in aircraft cockpit displays.
  3. It is used for displaying images used in digital cameras.
  4. It is used in instruments panel where all the lab instruments uses LCD screens for display.
  5. It is used as a display screen in calculators.
  6. The television is main applications of LCD.
  7. Mostly the computer monitor is made up of LCDs.
  8. The LCDs are used in mobile screens.
  9. It is also used in video players.

List of LCD panel manufacturers

China Karson Ho -SHENZHEN GUOJIA
Taiwan AU Optronics
China BOE (bought Hydis)
Japan Casio (former)
Taiwan ChiMei former, merged with Innolux)
Taiwan Chungwha Picture Tubes
China East Rising
Japan Epson
Taiwan Giantplus technology
Taiwan HannStar Display Corporation
Japan Hitachi (former, merged with Japan Display alongside Sony and Toshiba)
China HKC
Taiwan InnoLux Corporation
Japan Japan Display
Japan Kyocera
South Korea LG Display
United States LXD Incorporated
Japan Mitsubishi Electric
Japan NEC Display Solutions (former, now Tianma)
China New Vision Display
China/United States Orient Display
Japan Panasonic Corporation (former)
Japan Pioneer
United States Planar Systems (former)
Taiwan Powertip Technology Corporation
South Korea Samsung Display (former)
Japan/Taiwan Sakai display products(joint venture between Foxconn and Sharp Corporation)
Japan Sharp Corporation
South Korea/Japan S-LCD (former joint venture between Sony and Samsung, now Samsung)
Japan Sony (former, merged into Japan Display)
China TCL (as CSOT)
China Tianma
Japan Toshiba(Former, merged into Japan Display)
Japan Toshiba Matsushita Display Technology(Dissolved in 2009, bought by Toshiba)
China TOPWAY Display
Hong Kong Truly Semiconductors
India Videocon
Taiwan Winstar display
Taiwan PalmTech
China Maclight Display
China HEM
Taiwan/China Microtips Technology

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