The epoxy glass fiber reinforced plastic papers takes shape the stepto be multitudinous, after front Daoist priest if prepares, the Daoistpriest if prepares, the experience indicated the epoxy glass fiberreinforced plastic papers the control which takes shape to be supposedagain in after to say. In order to help the field to grasp thetechnology, the China epoxy resin profession association's expert,specially in light of this provided the pertinent data to use as ameans of on the other day. The mold is papers takes shape the craft main craft equipment, thereasonable design, the selection and the manufacture mold and reducethe cost relations to the product quality to be very big.
The moldstructural style mainly has the raised mold, the concave mold, theinvolution mold, puts together the pattern making and so on, raisedmold (force plug) papers the ease of operation, the quality is easy tocontrol but commonly used to the contour request not too strictproduct, the concave mold (mold cavity) the product outside surfacesmooth, the size accurate but the hollow deeper concave mold papersthe operation to be inconvenient, the involution mold (to mold)commonly used requests the high product to the production surfaceroughness and thickness, puts together the pattern making to be possible to satisfy the structure complex product operationrequirements.
The mold material choice papers takes shape is the lowpressure to take shape, therefore is not high to the mold intensityrequest, may select the material variety includes: The lumber, issuitable to the manufacture shape is complex, size great roomtemperature solidification product; The gypsum with the lumber, thebrick and so on makes the skeleton, is suitable to the production fewshapes simple large-scale product and the shape complex small product;The cement , uses in the modelling to be simple, the tableview quality requirement not high product; The glass steel die, issuitable for the mass productions surface quality request is higher,shape complex product;
The epoxy mold embryo, is suitable for the massproductions shape simple large-scale product; The metal mold, issuitable for the mass production small high accuracy stereotypiaproduct; The soluble salty mold, uses in to produce the few drawing ofpatterns difficult small product. The mold may make the integral type, combined type or bone posture.Before the mold use should spread or spurt 2 ~ 3 release agents in theworking surface, after first 1 does spreads or spurts the next releaseagent again. According to the China epoxy resin profession associationexpert introduced that, the commonly used outside release agentincludes: Polyethylene, application temperature 120 ¡æ; 5%polystyrene toluene solution, application temperature 100 ¡æ; 5%chloroethylene acetone toluene solution, application temperature 120¡æ; Crosses the chloroethylene solution, the application temperature150 ¡æ; The silicone oil, the silicon fat and contain the fluorinesuspending liquid, the application temperature 200 ¡æ; Paraffin waxclass release agent, application temperature.
