Mene ne babban hanyar gyare -gyaren epoxy gilashin fiber jirgin

1. Kwanciya da-rigar kwanciya

Apply a release agent and a layer of medium-active liquid thermosetting resin with a viscosity of 0.3-0.4PaS to the surface of the mold in turn (after the gel coat is coagulated) and a layer of fiber reinforced materials. The fiber reinforced materials have surface felt and non-twisted coarse There are several kinds of gauze (checkered cloth). Use a hand-held roller or brush to impregnate the fiber reinforced material with resin, drive out air bubbles, and compact the base layer. The layup operation is repeated many times until the design thickness of the product is reached. The resin is cured at room temperature due to polymerization reaction. Can be heated to accelerate curing. At present, hand lay-up is the main form in my country, which accounts for about 80% of resin-based composite materials.

2. Allurar resin da jujjuyawar canja wurin RTM

RTM hanya ce mai ƙyalƙyali mai ƙwanƙwasawa. Sanya kayan da aka ƙarfafa fiber a tsakanin babba da ƙananan molds; rufe molin da kuma murɗa murfin; allura resin a ƙarƙashin matsin lamba; bude murfin bayan an warkar da resin, kuma cire samfurin. Kafin aiwatar da tsarin jujjuyawar resin, dole ne a cika resin a cikin ramin murfin, kuma matsin lamba ya sa resin yayi saurin canzawa zuwa cikin ƙirar kuma ya lalata kayan fiber.

3. Gyara takardar SMC (BMC mai yawa)

Add initiators, fillers, pigments, internal mold release agents, low-shrinkage additives, thickeners, etc. into the resin, and mix them to form a resin paste. The resin paste falls on the lower film of the SMC unit (commonly used polyethylene film or nylon film), and at the same time, it settles on the lower film and chopped into 25～55mm glass fiber strands, and then is covered with a layer of film to become a sheet. Sandwich roll. Store the coil for several days to thicken the material to reach a moldable viscosity. SMC is supplied as a backup in a bundled state. The coil is unrolled, cut, weighed, put in the heated steel mold platinum, pressurized to solidify and mold, and then the finished product is obtained.