A cavity space detection agent
A detection agent and space technology, which is applied in the field of cavity space detection agent, can solve the problems that the inner cavity cannot be detected in advance, waste of resources, increase production cost, etc., and achieve the effect of good promotion and use, saving production cost and avoiding defective products
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Embodiment 1
[0043] A cavity space detection agent, its components and parts by mass are as follows:
[0044] 35 parts of butyl rubber;
[0045] 7 parts of starch;
[0046] 10 parts of hydrogenated rosin glycerides;
[0047] 13 parts of polyvinyl acetate;
[0048] 22 parts of paraffin;
[0049] 2 parts corn syrup;
[0050] Carrageenan 4 parts;
[0051] 17 parts of agar.
[0052] Its preparation method is:
[0053] (A) Weigh 45 parts of butyl rubber and 10 parts of starch in proportion and add them to a blending kettle with a stirring device, and fully stir;
[0054] (B) After stirring for 46 minutes, heat to 35°C, add 13 parts of hydrogenated rosin glycerides, 15 parts of polyvinyl acetate, and 2 parts of paraffin into the blending kettle and stir for 25 minutes, and then heat to Insulate at 60°C for 30 minutes;
[0055] (C) Insulate the mixture in step (B) at 40°C, then add 4 parts of corn syrup, 6 parts of carrageenan and 21 parts of agar, mix well and disperse evenly, and then ...
Embodiment 2
[0058] With embodiment 1, the difference is the content of each substance: 30 parts of butyl rubber, 5 parts of starch, 8 parts of hydrogenated rosin glycerides, 10 parts of polyvinyl acetate, 20 parts of paraffin, 1 part of corn syrup, 2 parts of carrageenan part, 14 parts of agar, after stirring for 60 minutes in step (B), heat to 30°C, add 10 parts of hydrogenated rosin glycerides, 13 parts of polyvinyl acetate, and 22 parts of paraffin into the mixing tank in turn and stir, stirring The time is 20min, and then heated to 50°C and then kept for 30min.
[0059] The present invention is solid at a room temperature of 25°C. When in use, the cavity detection agent needs to be heated to 40°C to a melted state, and then the liquid cavity space detection agent is poured into the inner cavity of the sand mold and cooled to 28°C. Take it out after molding, and check whether the inner cavity of the sand mold is intact by observing whether the gel sand mold taken out is cracked or dama...
Embodiment 3
[0061] With embodiment 1, the difference is the content of each substance: 38 parts of butyl rubber, 7 parts of starch, 10 parts of hydrogenated rosin glycerides, 13 parts of polyvinyl acetate, 23 parts of paraffin, 2 parts of corn syrup, 4 parts of carrageenan part, 17 parts of agar, after stirring for 30 minutes in step (B), heat to 45°C, add 10 parts of hydrogenated rosin glycerides, 13 parts of polyvinyl acetate, and 22 parts of paraffin into the mixing tank in turn and stir, stirring The time is 20 minutes, and then heated to 80°C and kept for 30 minutes, then heated at 75°C for 30 minutes.
[0062] The present invention is solid at a room temperature of 25°C. When in use, the cavity detection agent needs to be heated to 40°C to a melting state, and then the liquid cavity space detection agent is poured into the inner cavity of the sand mold and cooled to 29°C. Take it out after molding, and check whether the inner cavity of the sand mold is intact by observing whether th...
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