How to make mould with 191 resin skillfully

    Many customers use 191 resin to make molds, 191 resin mold has a great disadvantage, is the shrinkage is very high, mainly to see a user's demand, some users do not know that 191 resin shrinkage is very high, so listen to friends said 191 can make molds, Do not consider selling back, finally found that with 191 resin made out of the mold department is he want the effect, 191 page is not not to make molds, mainly to see you a multi-product demand degree, Guang Zhi Chemical Small series here to provide you with two methods: [b] resin mold production of two methods [/b] 　　   1, from the production of molds required to strictly control the deformation of the problem, in order to maximize the size of fiberglass products to ensure the accuracy. Taking FRP desktop mold as an example, usually the method of controlling deformation is:    ① increase the wall thickness of the mould,    ② use external reinforcement method and exert external force to adjust the deformation,    The first method, because of the high cost of FRP, increased the wall thickness of the use of the frost, and the deformation of the reduction is not obvious, the practice proves that the second method can be more ideal to solve the problem of mold deformation. Foreign imports of FRP molds are reinforced by the form of steel structure of the hint. FRP Mold after molding, with metal sections (depending on the shape of the mold, geometric dimensions and other factors determine the type of steel) strictly the shape of the welding reinforcement, and in the easily deformed parts (such as the center area) add a few adjustment screws    2, and then use glass fiber grid cloth cut into diagonal bar, will strengthen the box and mold The mother paste system as a whole, to be fully cured, mold release correction of the overall size, such as the discovery of the three concave heart, that is, adjust the screws, to pay attention to fine-tuning, to prevent the mold surface cracks, such as the discovery of mold drum heart, will adjust the screw and mold system as a whole to reverse fine-tune. [b]191 resin production mold of the approximate process:[/b]     1, two valve mold (die according to the complex situation of the product, equal or unequal divided into two pieces, the rules are not detailed, a lot of content, One thing to note is that the die line is absolutely not open in the middle of the person's face, such as a person standing, then from the two-shoulder direction of the open mold. Hollow die flat Bottom on the silicon Film Seal);      2, half and body mold (that is, half of the page, half is conjoined, such as a sitting frog, the predecessor is a little complex, the back of the buttocks is smooth, this time can be used, the back smooth will not need to trim, And the front because of the relationship between the mold and other design, such as holding the chin, the arm and jaw have an empty, the mold line is located in the middle of it; if there are many small frogs-not necessarily frogs, the rootThis is nothing complicated, in the case of disassembly feasible, that also open into such a mold, but the mold line on both sides of the eye, the eyes above the mold line, so as to eliminate the trouble of mold-forming;      3, the Fit mold (meaning is not paged, completely integrated, Sometimes on the edge of a separate small side of the mold demoulding, such as a semi-circular product, or a simple frame, no complicated, this time to use, so only need to repair the bottom of the good, hollow back on the silicon film finish, solid grinding bottom.      4, two double-bottom triad model (such as a product complex, deadly is the bottom is a boss, such as a candlestick, the bottom is Four corners, how to do it, with a block of silicone to do the bottom mold, relatively small and simple directly to do the closed mold, candlestick hollow shake after uniform hardening, Slurry Bottom sealing die), the total meaning is that the bottom edge is not flat, is complex, small can be used as a closed mold to do, will be poured into, quickly close the bottom cover, shaking a few laps, so that the bottom cover on the material, and then take off, the mold into the vacuum machine, bottom slab can not, because this bottom slab is usually made with a sheet of silica gel, After the product comes out, if it is a small thing to be closed up to shake, hurriedly bottom slab cover, with a belt tie, to the bottom of a slight tilt three to five laps, the purpose is intricately have material, the bottom of the material, and then back to the bottom once, in order to insure, then turn the first time, to stop, let the rest of the head, roll two to four Again a somersault, material flow speed to master, since then has been rolling and tree roll to harden, not too fast material, closed mold temperature high, do dozens of after, quickly hardened, mastered well.      5, closed mold (is completely closed meaning, of course, but also two pages, but do not need the back cover, such as the sphere. This kind of mold is usually called the blind mode, meaning is blind, do not know inside the material flow to where. The average person will think that this is the simplest, but in fact, personally think this is the most difficult. The ball is the most typical blind model, and of course the simplest. [b]191 resin How to do non-stick mold [/b] a lot of resin is non-stick, the premise is that you play the release wax, if not hit, your mold is resin, resin and resin is a comparative space between bonding. [b] Related mold resin recommended [/b]      If the requirements of the mold high, we can recommend 8200 Special mold resin and 196 resin, mold gel Coat recommended DSM 8300, if you are the production of resin mold is very understanding, You can ask our customer service specialist.

How to use 191 resin to make molds skillfully