I. Product introduction of
FR4 insulating board processing parts
According to the use of different applications, the industry is generally known as: fr4 Epoxy Glass Cloth, insulating board, epoxy board, epoxy resin board, brominated epoxy resin board, fr4, glass fiber board, glass fiber board, fr4 reinforcing board, FPC reinforcing board, flexible circuit board reinforcing board, fr4 epoxy resin board, flame retardant insulating board, fr4 laminate, epoxy board, fr4 optical board, fr4 glass fiber board, epoxy glass cloth, epoxy glass cloth laminate, circuit board drilling mat. fr4 light board, fr4 glass fiber board, epoxy glass cloth board, epoxy glass cloth laminate, circuit board drilling pad. Main technical characteristics and applications: stable electrical insulation properties, good flatness, smooth surface, no pits, thickness tolerance standards, suitable for high-performance electronic insulation requirements of products, such as FPC reinforcement board, PCB drilling pads, fiberglass dielectrics, potentiometer carbon film printed fiberglass boards, precision vernier gears (wafer milling), precision test panels, electrical (electrical) equipment, insulated spacers, insulated pads, transformer insulation boards, motor insulation boards, insulating boards. Transformer insulation boards, motor insulation parts, grinding gears, electronic switch insulation boards, etc.
NEMA A material standard stipulated by the National Electrical Manufacturers Association (NEMA), the corresponding IEC International Electrotechnical Commission (IECIEC) standard is EPGC202, and there is no domestic standard that corresponds to it.
The closest domestic standard is 3240 epoxy laminated glass cloth board, 3240 corresponds to the IEC International Electrotechnical Commission standard for EPGC201, and EPGC201 and EPGC202 only the difference between the flame retardant properties. So we can simply think that fr4 is an improved product with enhanced flame retardant property of 3240.
The surface colors of fr4 insulating board processed parts are:
Yellow fr4, white fr4, black fr4, basket color fr4 and so on.
fr4 is a substrate used for PCB, a category of sheet material. Board material according to the different reinforcing materials, the main classification for the following four: fr4: glass cloth substrate, fr1, fr2, etc.: paper substrate, CEM series: composite substrate,
Special Materials substrate (ceramic, metal-based, etc.) fr4 by the special electronic cloth impregnated with epoxy phenolic resin and other materials by high temperature and high pressure hot pressurization of the plate-like laminated products.
Features of fr4 insulating board: high mechanical and dielectric properties, good heat and moisture resistance and good machinability.
Usage of fr4 insulating boards: used as insulating structural parts in electric motors and electrical equipments, including all kinds of switches, FPC reinforcement, electrical insulation, carbon film printed circuit boards, computer drilling pads, mold fixtures and so on (PCB test frames), and can be used in humid environment conditions and transformer oils.
Second, fr4 insulation board processing parts processing methods
1、Drilling
This is a PCB circuit board factory common processing methods, whether it is PCB test fixtures, or PCB post-processing will go through the “drilling”, the larger PCB factory usually set up their own drilling room, drilling room is usually more closely linked with the fixtures, and drilling room is not an easy job, but relatively free, usually the drilling room Used to the consumables and equipment is a special drilling machine, drilling nozzle, glue, wood pads, aluminum pads, etc., drilling nozzle loss and pad loss is huge, a lot of small companies usually supply a factory to get the drilling nozzle and milling cutter on the big money;
Another common way to drill holes and the new up LED lampshade fixed insulating parts, LED as an energy-saving industry in recent years has received popularity, and LED by a large number of small lamps, this feature makes the insulating board applications again to broaden the field of application, usually the LED fixed insulating parts of the processing is drilling and then gong a circle can be processed in a relatively simple way, the market is huge, but the characteristics of the grade is not high, and Low profit;
2, Computerized gong
Computer gong is the name of Guangdong and Hong Kong, commonly known as CNC or CNC, there are also called machining centers, in fact, are a meaning, the computer gong is very powerful, which is divided into plane and beveled (or called curved surface), beveled category is relatively small, and the plane of the computer gong is very extensive, such as insulating
gaskets, insulating rods, vernier wheels, and other small machining parts are used in the way of computer gong! Processing epoxy board, computer gong is characterized by flexibility, fast, powerful, is currently the best and most commonly used processing methods;
3、Slitting
This is the most common in the market is also the most common processing methods, general stores have a cutting board machine cutting boards with, and this is usually more rough, the tolerance of the large can be controlled within 5mm, to say that scary, I've seen a lot of Dongguan to do the epoxy board stores or companies, do probably more than 5 years of the company is actually still in the Angle Iron welded cutting board machine cutting, Dongguan is known as the capital of the manufacturing, it seems to be indeed! Avatar, this way there is no technical content, but sometimes quite lucrative, such as sometimes the normal calculation of a half is cut into 8 small, there is a small waste, but those who sell the board stores have a way to a board cut into 10 small, if the amount is large, the profit is very substantial;
4, Milling machine / lathe
This kind of processing out of the product, usually are parts and such products, because the milling machine and lathe was mostly used for hardware parts processing with, but ordinary milling machine and lathe processing speed is a big feature, so if you rely exclusively on this kind of epoxy board processing, the company's life expectancy will be greatly reduced, but to do fixtures, then, these two kinds of equipment is necessary, that is to say, if the processing of the thickness of the thicker epoxy boards, then, if you are a good choice. Thicker epoxy board, then, milling machine and lathe is not a choice;
5, Engraving machine
Computerized engraving machine by the computer, engraving machine controller and engraving machine host three parts. Its working principle is: through the computer configuration of special engraving software for design and layout, and the computer to design and layout of information automatically transmitted to the engraving machine controller, and then by the controller to convert this information into a stepper motor or servo motor can drive the power of the signal (pulse string), control the engraving machine host to generate the X, Y, Z three-axis engraving knife road base path. At the same time, the high-speed rotary engraving head on the engraving machine, through the processing of material configuration of the tool, fixed in the host table on the processing material for cutting, can be carved in the computer design of a variety of plane or three-dimensional relief graphics and text, to achieve the automation of engraving operations.
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