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Showing posts with the label circuit boards

The use of silicone conformal coating of the circuit board

First, performance: Outstanding representative of silicone type of circuit board conformal coating, Weitai conformal coating (VT-380) with waterproof, moisture-proof, dust-proof, anti corrosion, anti - aging etc. characteristic of the excellent and widely used in circuit boards, electronic components of the insulation. Easy to operate, brush, dip coating. Two, product application Circuit board conformal coating is a special formulation of coating, used for protection of circuit board and related equipment from the erosion of the bad environment, so as to improve and extend their service life and ensure the safety and reliability of using. Three paint coated on the circuit board surface, forming a layer of both light and flexible 0.5-0.8 mm thick protective film. It can protect the circuit board from damage in the case of chemical substances such as fuel, coolant, vibration, humidity, salt spray, humidity and high temperature. In these conditions circuit board may be corrosion, mold...

Introduction to the basic knowledge of circuit board maintenance

Circuit board repair is a new repair industry. Industrial equipment automation degree is more and more high, so there are a growing number of various sectors of the IPC board, industrial control board is damaged, replacement circuit boards for the high cost (ranging from a few thousand dollars, as many as tens of thousands or hundreds of thousands of yuan) has become the enterprise is very headache thing. In fact, the vast majority of these damaged circuit boards in the country can be maintained, and the cost is only to buy a new board of 30% - 20%, the time is much shorter than the foreign fixed board. The basic knowledge of circuit board maintenance is described below. Almost all of the circuit board repair are not drawing materials, so a lot of people to the maintenance of the circuit board to skepticism, although various circuit boards vary, but constant is each kind of circuit board are all integrated block, composed of resistors, capacitors and other devices, so the damage of c...

Easy to understand the classification of circuit boards

According to the circuit board layer to the right is divided into single panel, double sided and multilayer circuit board, three classifications. The first is a single panel, in the most basic PCB, the parts are concentrated in one side, the wire is concentrated on the other side. Because the wire only appears on one side, the PCB is called a single sided circuit board. The single panel is usually simple and low cost, but the disadvantage is that it can not be applied to the product. The dual panel is an extension of the single panel, when the single layer wiring can not meet the needs of electronic products, it is necessary to use a double-sided board. Both sides are covered with copper wire, and can pass through the hole to guide the two layer between the lines, so that the formation of the required network connection. A multilayer board is a printed board with three layers of conductive pattern layer and insulating material which are laminated and formed with a layer of insulati...