The glass reinforced plastics of moulding makes the stand or fall that tastes quality, besides the integral technology quality with factory worker, quality of the most important mould wanting number and service life. The pattern of glass reinforced plastics that home produces comes from the structure saying is pretty good, can compare with posture of other industrialization nation, however the exterior quality of mould of glass reinforced plastics is general poorer, besides the blemish of the tool equipment respect of mould colophony of home and preparation mould, most home manufacturer takes seriously in that way without foreign factory master mold is made and mould surface is bright and clean spent processing.
Of product of glass reinforced plastics bright and clean degree depend on of mould of glass reinforced plastics bright and clean degree, because this goes up domestic and internationally the vitreous steel of class, to essence of finishing of mould of glass reinforced plastics and essence of life, mould of glass reinforced plastics is the mother of the product, in below one on mould of glass reinforced plastics many kongfu, better result can be achieved on product of glass reinforced plastics in the future. Technology of finishing of mould of glass reinforced plastics introduces as follows.
Mould pressing of glass reinforced plastics pulls crowded mould
One, new model and old standard face-lifting
1, water mill- - new pattern or old pattern face-lifting, use etc. fine while adding water of waterproof abrasive paper above all, start of the waterproof abrasive paper when water mill wants tall, begin from 600 commonly, some users are versed in to rise effect, from 400 even 400 more thick waterproof abrasive paper begins under date, to pursue temporarily fast, after the thick arenaceous mark that little imagine thick sand paper creates fine sand paper no matter again sand milling also is to grind what do not drop; 600 want 800 later, 1000, 1200, 1500 (even 2000) successive, one kind cannot be saved, and spy of labour wanting essence of life, be willing to part with or use makes great efforts great strength, flower fine, won't do is the least bit opportunistic.
2, polishing- - first thick polish agent right amount Tu Zaimo is provided apparently, with dynamoelectric polisher polish, when polishing, abb Pan Ping is put in mould surface, actuate polisher makes movement of shape of garden form helix, cast the past pieces, do not want leakage to cast, main workload is in thick cast, so general thick cast at least to want twice to till the mould is smooth. Thick cast after ending, change new abb dish, agent of reoccupy fine polish is fine cast, duplicate afore-mentioned operations, agent of polish of degree of finish cannot use an abb together dish, had better use a polisher each.
SMC shapes mould
3, clean model- - clean model process is to want the mould the Qing Dynasty such as apparently polishing agent remains or fat dose gets rid of, the agent of sealing of hole that makes be added subsequently and agent of drawing of patterns (candle) can add firmly on the mould, clean model water is brushed twice commonly, brush clean model water with gauze first wipe next in mould surface dry, besmear again water of model of a clean, make its sufficient volatilize after working (about half hours) , reoccupy does cloth to brush completely to brightness.
4, seal a model- - bright and clean to waiting in the requirement product of spent glass reinforced plastics will tell, pass with polish of 3 polish agent commonly namely OK. But after mould surface passes polishing only, still have the imperceptible opening with a lot of invisible naked eye, be told so to the vitreous steel of requirement high accuracy, must want to seal these small stoma, such, precision of goods of glass reinforced plastics went up again a grade. Specific means is agent of sealing of hole, with gauze equably besmear is on modular face, rangjigan is appeared (about 30 - 60 minutes) , reoccupy does cloth to brush completely to brightness. If be new pattern, want sealing of hole 4 times, if be old standard face-lifting, sealing of hole two can.
5, drawing of patterns- - differ according to what producing ply of product of glass reinforced plastics, select agent of different drawing of patterns. Shape to mould clean of sanitation of glass reinforced plastics is provided or base its ply amounts to 5mm to control product of thicker glass reinforced plastics, because solidify of glass reinforced plastics is calorific the amount is larger, want to choose candle of high temperature drawing of patterns. Candle of specific besmear drawing of patterns had better use gauze to rise bag of candle of right amount drawing of patterns to had squeezed gauze to besmear Fu arrives equably next mould apparently, save again equably already so, will not candle of drawing of patterns scatters in great quantities, wait for its are fully dry (30 - 60 minutes) , reoccupy hand wraps clean gauze to brush or polisher is cast to brightness to take a person. New pattern wants to go up 4 to candle of 5 drawing of patterns, ability can be used. After drawing of patterns of the first product, later every time drawing of patterns last time candle of drawing of patterns can.
Taste to raise high yield bright and clean spend and improve work efficiency, drawing of patterns one secondary besmears agent of drawing of patterns, such products are bright and clean degree tall, avoid to use candle of drawing of patterns again for many times hind need clean polish corrupt suffering.
2, production crosses face-lifting of surface of mould of period of time
Already oxidized via using candle of drawing of patterns or the candle of mould drawing of patterns that store for a long time for many times, the surface when goods of reproduction glass reinforced plastics is accumulated because of candle and coarse influence product is bright and clean degree, want to renovate overhaul afresh at this moment, can use cleanness of clean model agent twice all accumulating candle is cleaned entirely, agent of reoccupy sealing of hole is sealed twice, go up 3 times again candle of drawing of patterns, the mould looks brand-new again, can use normally afresh.
