Method for manufacturing firework launcher by using composite material
A composite material and manufacturing method technology, applied in pyrotechnics, solid waste management, offensive equipment, etc., can solve problems such as low production efficiency of gypsum fireworks, insufficient launcher strength, and consumption of forest resources, etc., to achieve mixing technology and processing molding technology Simple, effective in solving cracks in gypsum cylinder and reducing environmental pollution
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Embodiment 1
[0016] Example 1: Put 5 parts by weight of polyvinyl alcohol 1788 and 5 parts by weight of polyvinyl alcohol 1799 into a reaction bottle, add 50 parts of water to swell for 0.5 hours, heat up to 80°C, stir for 3 hours, and heat up after the polyvinyl alcohol is basically dissolved to 90-95°C, heat-preserve and stir until completely dissolved, then cool down to 40°C, after filtering, add 0.05 parts of dimethylglyoxime and stir well for later use.
[0017] Add 5 parts of methyl cellulose ether and 50 parts of water, stir and dissolve, add 0.5 part of sodium silicate and 1.0 part of sodium sulfate, dissolve and filter for later use.
[0018] Pre-mix 90 parts of plaster powder and 15 parts of straw powder for 0.5 hours, then add the above spare polyvinyl alcohol solution, methyl cellulose ether solution, 5 parts of milky white glue and appropriate amount of water and stir and mix evenly to prepare a composite material. The flexural strength of the material test plate is 120N.
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Embodiment 2
[0020] Example 2: Put 2.5 parts by weight of polyvinyl alcohol 1788 and 2.5 parts by weight of polyvinyl alcohol 1799 into a reaction bottle, add 25 parts of water to swell for 0.5 hours, raise the temperature to 80°C, stir for 3 hours, and wait until the polyvinyl alcohol is basically After dissolving, heat up to 90-95°C, heat and stir until completely dissolved, then cool down to 40°C, filter and set aside.
[0021] Add 5 parts of methyl cellulose ether and 50 parts of water, stir to dissolve, add 0.5 parts of sodium silicate and 0.5 parts of sodium sulfate, dissolve and filter for later use.
[0022] Premix 100 parts of calcined gypsum powder, 5 parts of fly ash, 5 parts of white cement, and 15 parts of straw powder for 0.5 hours, then add the above-mentioned standby polyvinyl alcohol solution, methyl cellulose ether solution, 10 parts of milky white glue and An appropriate amount of water was stirred and mixed evenly to prepare a composite material, and the flexural streng...
Embodiment 3
[0024] Example 3: Put 10 parts by weight of polyvinyl alcohol 1788 into a reaction bottle, add 50 parts of water to swell for 0.5 hours, raise the temperature to 80°C, and stir for 3 hours. After the polyvinyl alcohol is basically dissolved, heat up to 90-95°C and keep warm Stir until it is completely dissolved, then cool down to 40°C, filter and set aside.
[0025] Pre-mix 80 parts of plaster powder and 15 parts of rice bran for 0.5 hours, then add the above-mentioned spare polyvinyl alcohol solution and appropriate amount of water and stir and mix evenly to prepare a composite material. The flexural strength of the composite material test plate is 110N.
[0026] The composite material is poured into a mold, and dried after molding to obtain a rough product of the firecracker launcher, which is subjected to relevant processes to obtain a finished product of the fireworks launcher.
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