CN104089543A - Preparation method for spherical housing of display shell, and spherical shell of display shell - Google Patents
Preparation method for spherical housing of display shell, and spherical shell of display shell Download PDFInfo
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- CN104089543A CN104089543A CN201410275621.0A CN201410275621A CN104089543A CN 104089543 A CN104089543 A CN 104089543A CN 201410275621 A CN201410275621 A CN 201410275621A CN 104089543 A CN104089543 A CN 104089543A
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Abstract
The invention discloses a preparation method for a spherical housing of a display shell. The preparation method comprises the following steps: uniformly mixing raw materials for preparing the spherical housing of the display shell to form a spherical housing raw material; placing the spherical housing raw material in a die; heating the die to 300 to 350 DEG C; keeping the temperature of the die to be 300 to 350 DEG C within 50 to 150 seconds, and keeping pressure in the die to be 500 to 800pa; performing demolding to obtain the spherical housing of the display shell. Due to the adoption of the technical scheme, the housing of the display shell is stronger in strength and higher in impact resistance.
Description
Technical field
The present invention relates to fireworks salvo field, relate in particular to a kind of preparation method and fire works display projectile shell of fire works display projectile shell.
Background technology
What on fireworks salvo market, generally use at present be the urceolus of papery, and its operation is loaded down with trivial details, and paper utilization rate is not high, also can waste a large amount of binding agents, runs counter to the strategic objective of the sustainable development of China promotion.Therefore,, for the shell of fireworks display fireworks, substitute paper with string gradually and manufacture this shell.But because PROCESS FOR TREATMENT is improper, the outer cover intensity of manufacturing by said method is inadequate, cannot in the time blowing, form large-scale firework effect, market-oriented effect extreme difference, cannot adapt to the high request of fireworks field to moulding and visual effect.
Therefore, need a kind of technique formation method of novelty, improve significantly the intensity of fireworks display shell, its anti-impact force is better.
Summary of the invention
The object of the present invention is to provide a kind of preparation method of fire works display projectile shell, strengthen the intensity of fireworks display shell, and can make the various shapes of shell.
The preparation method who the invention discloses a kind of fire works display projectile shell, is characterized in that: comprise the steps:
1. the raw material of making described fire works display projectile shell is stirred, form spherical shell raw material;
2. described spherical shell raw material is inserted in mould;
3. heat described mould to 300-350 DEG C;
4. within 50-150 second, keep the temperature of described mould at 300-350 DEG C, keeping the pressure in described mould is 500pa-800pa;
5. described fire works display projectile shell is obtained in the demoulding.
Preferably, step 1. in, the speed of described stirring is 50rpm-80rpm.
Preferably, step 1. and step also comprise between 2.: dry described spherical shell raw material 1-3.5 hour.
Preferably, step 3. in, heat described mould to 350 DEG C.
Preferably, step 4. in, in 50-100 second, keep the pressure in temperature and the mould of described mould.
Preferably, step 4. in, keep the temperature of described mould at 350 DEG C, keeping the pressure in described mould is 600pa.
Preferably, the circumference ratio of described mould is: 2:1.
Preferably, described mould has central tube, and described central tube is positioned at the both sides at described mold bottom center.
Preferably, the raw material of making described fire works display projectile shell comprises bamboo powder, wood powder, corn flour, starch and rice bran, and each weight portion proportioning is: bamboo powder: 40%; Wood powder: 20%; Corn flour: 10%; Starch: 10%; Rice bran: 20%.
The invention also discloses a kind of fire works display projectile shell of being prepared by above-mentioned preparation method.
Adopt after technique scheme, the intensity of fire works display projectile shell is larger, and in the time that fireworks are blown, moulding scope is larger, and meanwhile, the forming shape of fire works display projectile shell is variation more, convenient transport, market-oriented feasible Du Genggao.
Detailed description of the invention
The preparation method who the invention discloses a kind of fire works display projectile shell, comprises the following steps:
The preparation method who the invention discloses a kind of fire works display projectile shell, comprises the following steps:
1. obtain the raw material of preparing fire works display projectile shell, and stir, form spherical shell raw material;
The raw material of preparing fire works display projectile shell generally comprises the string as major ingredient, as starch and the other materials etc. of binding agent.After ready, these raw materials are stirred, the raw material of spherical shell for forming after forming.Because the preparation of material can produce great impact to the intensity of spherical shell entirety, for the stirring of raw material, its stir speed (S.S.) can be between 50rpm to 80rpm, too fast or excessively slow stir speed (S.S.) is by the bonding degree affecting in raw material, speed and simple and easy degree when thereby further mould is poured in impact, therefore,, under above-mentioned preferred stir speed (S.S.), raw material bonding degree is moderate.
2. dry ball husk as raw material;
For using the spherical shell raw material of binding agent, can before importing mould, be dried spherical shell raw material, between 1 to 3.5 hour, by the binding agent evaporation in spherical shell raw material, be bonded together other raw materials drying time., the moisture in spherical shell raw material is removed fully meanwhile, convenient afterwards compressing.Those of skill in the art would appreciate that this step also can omit, directly raw material is poured into in mould, to carry out subsequent operation be also feasible.
3. spherical shell raw material is inserted in mould, prepare compressing;
4. to the mold heated of spherical shell raw material is housed, heating-up temperature is 300-350 DEG C;
To mold heated, to form fire works display projectile shell, heating-up temperature, can be rapidly by the evaporation of spherical shell moisture between 300 to 350 DEG C, rapid shaping, and the spherical shell body after moulding is closely strong.In one preferred embodiment, heating-up temperature is 350 DEG C, and starch will solidify, and fades to rubbery state because of moisture evaporation, and finally solid-state shape is got back in moulding again.
To regulate according to the thickness of end article to the forming temperature of mold heated.If when heating, temperature did not reach predetermined solidification effect not or too high, the intensity of shell can correspondingly weaken.
5. molding cycle is interior to mould heat-insulation pressure keeping;
Molding cycle is in 50 to 150 seconds, and because temperature is high, in this cycle, moisture can be discharged by abundant vaporization, so without too much time moulding.Forming temperature remains on the 300-350 DEG C in above-mentioned heating process, and ensures that the pressure in mould is 500pa-800pa, and spherical shell outer surface is pressed, and intensity is high.In one preferred embodiment, molding cycle is between 50-100 second, and water evaporates is complete.And the temperature of insulation is 350 DEG C, the pressure of pressurize is 600pa, makes that spherical shell is indeformable not to ftracture, smooth surface.
Those skilled in the art are scrutable, the pressure selection keeping determined to the compact dimensions of product in mould, and in order to meet the requirements of outer cover intensity, improve pressure and can expect, but the size of such moulding meeting sacrificial section product.So it is very important mutually mating between temperature and pressure.
6. the demoulding;
The spherical shell of moulding is taken out in the demoulding, completes preparation process.
In another preferred embodiment, the mould of employing has central tube, and the position of central tube is positioned at the both sides at mold bottom center.Possess after above-mentioned configuration, the large I of spherical shell regulates voluntarily, and security in its pressing process also will improve.
And the circumference ratio of mould is 2:1, benefit is: mould must have enough intensity to meet formed product and batch production, and therefore the mould strength under the circumference ratio of 2:1 is enough large, and easily batch production.
In an embodiment, the raw material of making described fire works display projectile shell comprises bamboo powder, wood powder, corn flour, starch and rice bran again, and each weight portion proportioning is: bamboo powder: 40%; Wood powder: 20%; Corn flour: 10%; Starch: 10%; Rice bran: 20%, raw material does not re-use paper, and when protection of the environment, this raw material can make full use of in natural environment.In addition also have the following advantages:
1) there is no discarded object, do not produce waste water, waste gas;
2) effectively utilize biological waste and renewable resource;
3) natural degradable, free from environmental pollution.
Those of skill in the art would appreciate that above-mentioned raw materials proportioning not exclusive, if need in actual applications to strengthen the hardness of spherical shell, the proportioning that adjustable height bamboo powder uses, and in the time of the soft spherical shell of needs, can reduce the proportioning of rice bran, concrete proportioning regulates according to actual conditions.
The fire works display projectile shell intensity of utilizing above-mentioned preparation method to prepare is high, and molding structure variation even may be molded to the two-piece type spherical shell of working in coordination and splicing, and tackles the different market demands and all can meet.
Adopt after technique scheme, the intensity of fire works display projectile shell is larger, and its crushing resistance, uniformity are treated; Moisture absorption test is better compared with conventional method with the rear performance test of blast.In the time that fireworks are blown, moulding scope is larger, and meanwhile, the forming shape of fire works display projectile shell is variation more, convenient transport, market-oriented feasible Du Genggao.
Should be noted that, embodiments of the invention have preferably implementation, and not the present invention is done to any type of restriction, any person skilled in art of being familiar with may utilize the technology contents of above-mentioned announcement to change or be modified to the effective embodiment being equal to, in every case do not depart from the content of technical solution of the present invention, any amendment or equivalent variations and the modification above embodiment done according to technical spirit of the present invention, all still belong in the scope of technical solution of the present invention.
Claims (10)
1. a preparation method for fire works display projectile shell, is characterized in that: comprise the steps:
1. the raw material of making described fire works display projectile shell is stirred, form spherical shell raw material;
2. described spherical shell raw material is inserted in mould;
3. heat described mould to 300-350 DEG C;
4. within 50-150 second, keep the temperature of described mould at 300-350 DEG C, keeping the pressure in described mould is 500pa-800pa;
5. described fire works display projectile shell is obtained in the demoulding.
2. preparation method as claimed in claim 1, is characterized in that:
Step 1. in, the speed of described stirring is 50rpm-80rpm.
3. preparation method as claimed in claim 1, is characterized in that:
Step 1. and step also comprise between 2.:
Dry described spherical shell raw material 1-3.5 hour.
4. preparation method as claimed in claim 1, is characterized in that:
Step 3. in, heat described mould to 350 DEG C.
5. preparation method as claimed in claim 1, is characterized in that:
Step 4. in, in 50-100 second, keep the pressure in temperature and the mould of described mould.
6. preparation method as claimed in claim 5, is characterized in that:
Step 4. in, keep the temperature of described mould at 350 DEG C, keeping the pressure in described mould is 600pa.
7. preparation method as claimed in claim 1, is characterized in that:
The circumference ratio of described mould is: 2:1.
8. preparation method as claimed in claim 7, is characterized in that:
Described mould has central tube, and described central tube is positioned at the both sides at described mold bottom center.
9. preparation method as claimed in claim 1, is characterized in that:
The raw material of making described fire works display projectile shell comprises bamboo powder, wood powder, corn flour, starch and rice bran, and each weight portion proportioning is:
Bamboo powder: 40%;
Wood powder: 20%;
Corn flour: 10%;
Starch: 10%;
Rice bran: 20%.
10. a fire works display projectile shell of being prepared by preparation method described in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410275621.0A CN104089543A (en) | 2014-06-19 | 2014-06-19 | Preparation method for spherical housing of display shell, and spherical shell of display shell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410275621.0A CN104089543A (en) | 2014-06-19 | 2014-06-19 | Preparation method for spherical housing of display shell, and spherical shell of display shell |
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| CN104089543A true CN104089543A (en) | 2014-10-08 |
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| CN201410275621.0A Pending CN104089543A (en) | 2014-06-19 | 2014-06-19 | Preparation method for spherical housing of display shell, and spherical shell of display shell |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002310598A (en) * | 2001-04-06 | 2002-10-23 | Kanebo Ltd | Shell, brushing charge, and star of fireworks and their producing method and fireworks |
| CN1414337A (en) * | 2002-07-17 | 2003-04-30 | 朱小东 | Fire works display projectile shell pulp moulding shaping technology |
| JP2005016780A (en) * | 2003-06-24 | 2005-01-20 | Akita Prefecture | Shell for rocket fireworks using biodegradable resin and method of manufacturing it |
| CN1818533A (en) * | 2005-12-28 | 2006-08-16 | 赵安升 | Fireworks drum and pellet shell and production thereof |
| CN101377395A (en) * | 2008-09-04 | 2009-03-04 | 黄明初 | Pressure forming firework external cylinder and fireworks display marble casing and manufacturing method thereof |
-
2014
- 2014-06-19 CN CN201410275621.0A patent/CN104089543A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002310598A (en) * | 2001-04-06 | 2002-10-23 | Kanebo Ltd | Shell, brushing charge, and star of fireworks and their producing method and fireworks |
| CN1414337A (en) * | 2002-07-17 | 2003-04-30 | 朱小东 | Fire works display projectile shell pulp moulding shaping technology |
| JP2005016780A (en) * | 2003-06-24 | 2005-01-20 | Akita Prefecture | Shell for rocket fireworks using biodegradable resin and method of manufacturing it |
| CN1818533A (en) * | 2005-12-28 | 2006-08-16 | 赵安升 | Fireworks drum and pellet shell and production thereof |
| CN101377395A (en) * | 2008-09-04 | 2009-03-04 | 黄明初 | Pressure forming firework external cylinder and fireworks display marble casing and manufacturing method thereof |
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Application publication date: 20141008 |