FR4 epoxy fixture process

FR-4 is a flame-resistant material grade code, which means that the resin material must be able to self-extinguish after the combustion state of a material specification, it is not a material name, but a material grade, so the general circuit boards used in the FR-4 grade of material there are many kinds, but most of the so-called four-function (Tera-Function) Epoxy resin plus filler (Filler) and glass fibers to make the composite material.

 

FR-4 Epoxy Glass Cloth Laminate, according to the use of different purposes, the industry generally known as: FR-4 Epoxy Glass Cloth, insulation board, epoxy board, epoxy resin board, brominated epoxy resin board, FR-4, fiberglass board, glass fiber board, FR-4 reinforced board, FPC reinforced board, flexible circuit board reinforced board, FR-4 epoxy resin board, flame-retardant insulation board, FR-4 laminated board, epoxy board, epoxy board, epoxy board, epoxy board, epoxy board, epoxy board, epoxy board, epoxy board. 4 laminated boards, epoxy boards, FR-4 light boards, FR-4 glass fiber boards, epoxy glass cloth boards, epoxy glass cloth laminates, circuit board drilling pads. 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, potentiometers, carbon film printed fiberglass boards, precision vernier gears (wafer milling), precision test panels, electrical (electrical) equipment, insulated spacer, insulated pads, transformer insulation boards, motor insulation boards, insulating boards. Transformer insulating boards, motor insulating parts, grinding gears, electronic switch insulating boards, etc.

 

fr4 Epoxy fixtures are devices used in the mechanical manufacturing process to hold machined objects in place so that they occupy the correct position for construction or inspection. It is also known as a jig. Broadly speaking, in any process of machining, the device used to quickly, easily and safely install the workpiece can be called fixture. Examples include welding fixtures, inspection fixtures, assembly fixtures, and machine tool fixtures.

 

Of these, machine tool fixtures are the most common and are often referred to as jigs. When machining the workpiece on the machine tool, in order to make the surface of the workpiece in accordance with the drawings of the size, geometry, and mutual positional accuracy with other surfaces and other technical requirements, the workpiece must be mounted (positioning) and clamped (clamping) before machining. Fixture is usually by the positioning elements (to determine the correct position of the workpiece in the fixture), clamping device, tool guide elements (to determine the relative position of the tool and the workpiece or the direction of the tool guide), indexing device (so that the workpiece is installed once to complete the completion of a number of workstations can be completed, including the rotary indexing device and linear movement of the two types of indexing devices), connecting elements and fixtures (fixture base) components.