CN207044561U - A kind of naphthalene ball manufactures mould - Google Patents
A kind of naphthalene ball manufactures mould Download PDFInfo
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- CN207044561U CN207044561U CN201720258284.3U CN201720258284U CN207044561U CN 207044561 U CN207044561 U CN 207044561U CN 201720258284 U CN201720258284 U CN 201720258284U CN 207044561 U CN207044561 U CN 207044561U
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- naphthalene
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Abstract
The utility model discloses a kind of naphthalene ball to manufacture mould, including two half modules, by the way of upper and lower matched moulds, the binding face of two half modules is evenly arranged several hemisphere spherical cavities in a circumferential direction, when two half modules are bonded, corresponding two hemisphere spherical cavities form a spherical cavity；The upper centrally disposed cast gate of mould, lower mould set cold slug well, and cast gate is connected by several short cylindrical running channels uniform on land area with spherical cavity；Steam vent is provided with the top of each spherical cavity；Upper die and lower die are provided with positioning hole；Upper mould, which is additionally provided with screwed hole and is used as, divides mould to be used.Using the naphthalene ball of the die casting, solve in prior art that particle sphericity is inadequate, particle surface naphthalene layer is in uneven thickness, the problems such as experimental repeatability difference；Preparation for use for laboratory naphthalene ball particle provides new method.
Description
Technical field
The utility model belongs to machinery manufacturing technology field, is related to a kind of preparation method of use for laboratory naphthalene ball.
Background technology
Naphthalene raw material is bright flat crystal, and chemical molecular formula is C10H8, molecular weight is 128.174, and solid state density is
1145kg/m3, normal melting point is 80 DEG C, and normal boiling point is 217.9 DEG C, has special odor.Naphthalene is that one kind can be by solid state
Directly it is changed into the chemical material of gaseous state without liquid condition.Due to naphthalene have at normal temperatures can distil, known physical property with
And the advantages of less toxic, thus be widely used in gas solid transfer experiment.Stacking bed spheric granules is in sky by ball particle
Accumulation forms in pipe, in order to measure the mass transfer characteristic in particle packing bed, it is necessary to using a number of naphthalene ball.
The production method of use for laboratory naphthalene ball is that naphthalene, specific practice are directly applied on the ball particle such as glass marble or aluminium ball at present
It is to be heated to melting by naphthalene, then ball particle is put into the naphthalene of thawing and taken out rapidly, the surface of such ball has just coated one
Layer naphthalene.This method is relatively simple, but the naphthalene thickness degree of ball surface and uneven, and due to the influence of gravity, the bottom of ball
The naphthalene solid crystallizing field similar to drop will be formed, thus sphericity is inadequate.And the obtained naphthalene ball of this method and artificial
Factor has much relations, so without repeatability.In addition, mass transfer experiment typically requires distillation thickness within the specific limits,
And the naphthalene thickness degree for its local surfaces of naphthalene surface that this method obtains is likely less than required distillation thickness, thus to experiment
As a result the degree of accuracy impacts.
It is general using pressure with the ball particle prepared with naphthalene similar material or material containing naphthalene, such as camphor ball in the market
Preparation method, cardinal principle are that powdered material directly is pressed into ball particle using pressure caused by ball press.This method one
As be used for industrial manufacturing applications, its prepare particle be in often ellipticity, sphericity is inadequate.For use for laboratory naphthalene ball,
Production quantity is few, too high using the cost of ball press, and produce naphthalene ball and do not meet requirement of experiment.
The content of the invention
In order to overcome above-mentioned weak point, the purpose of this utility model is to provide a kind of naphthalene ball manufacture mould, solved existing
Particle sphericity present in technology is inadequate, and particle surface naphthalene layer is in uneven thickness, the problems such as experimental repeatability difference.
The utility model the technical scheme adopted is that
A kind of naphthalene ball manufacture mould, including upper and lower two half modules, two half modules, by the way of upper and lower matched moulds, two and half
Several hemisphere spherical cavities are evenly arranged on the binding face of mould, corresponding two hemisphere spherical cavities form a spherical cavity；The upper half
The center of mould is provided with cast gate, and the center of the female die is provided with cold slug well, and the cast gate passes through uniform several on land area
Running channel is connected with spherical cavity；Steam vent is provided with the top of each spherical cavity.
The upper mold section is provided with two symmetrical positioning holes with female die on same circumference；The upper mold section set two it is right
The tapped through hole of title, as dividing mould to be used, it is right angle or acute angle that the tapped through hole is separated by angle with positioning hole.
It is furnished with a movable funnel in the cast gate top.
Described running channel is short cylindrical shape.
The beneficial effects of the utility model are：
1. avoid the use of large scale equipment, there is provided a kind of production cost is low, workable laboratory naphthalene ball system
Preparation Method；
2. the naphthalene ball prepared has higher sphericity and surface smoothness compared to existing method, it is adapted to laboratory to survey
Used when the amount stacking bed mass-transfer performance of spheric granules and other experiments for needing to use spheric granules；
3. applying naphthalene method compared to surface, the naphthalene ball prepared ensure that and test in addition to preferable sphericity
There is enough naphthalene distillation thickness, and preparation process has repeatability, for experiment measurement there is higher precision to provide in journey
Ensure.
Brief description of the drawings
Fig. 1 is mould overall structure diagram；
Fig. 2 is mould upper mold section elevational schematic view；
Fig. 3 is mould female die schematic top plan view.
Wherein：1- activity funnels；2- cast gates；3- steam vents；4- upper mold sections；5- positioning holes；6- spherical cavities；7- running channels；8-
Cold slug well；9- female dies；10- screwed holes.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
As shown in Fig. 1, Fig. 2 and Fig. 3, a kind of naphthalene ball manufacture mould includes two upper female dies 4,9, using upper and lower matched moulds
Mode, the binding face of two half modules are evenly arranged several hemisphere spherical cavities in a circumferential direction, when two half modules are bonded, accordingly
Two hemisphere spherical cavities form a spherical cavity 6；The center of the upper mold section is provided with cast gate 2, and the center of the female die is provided with
Cold slug well 8, the cast gate 2 are connected by several short cylindrical running channels 7 uniform on land area with spherical cavity 6；Each spherical cavity 6
Top be provided with steam vent 3.Upper mold section 4 and female die 9 are provided with two symmetrical positioning holes 5.Upper mold section 4 be additionally provided with two it is right
The screwed hole 10 of title, which is used as, divides mould to be used.The top of cast gate 2 is furnished with a movable funnel 1, facilitates the injection of liquid naphthalene.The spiral shell
It is right angle or acute angle that line through hole 10 is separated by angle with positioning hole 5.
During casting naphthalene ball, upper mold section 4, female die 9, and movable funnel 1 are assembled according to shown in Fig. 1.By liquid naphthalene
Injected, after mould is cooled to room temperature, first unloaded movable funnel 1, then a point mould takes ball by movable funnel 1.Two spiral shells when being divided to mould
In the screwed hole 10 for entering upper mold section 4 on bolt, after bolt encounters the surface of female die 9, two bolts are tightened successively, ensure mould stress
Uniformly.After upper female die separates, ball can directly take out.
Claims (4)
1. a kind of naphthalene ball manufactures mould, including upper mold section (4), female die (9), it is characterised in that：Upper mold section (4) and female die
(9) several hemisphere spherical cavities are evenly arranged, by the way of upper and lower matched moulds, on the binding face of two half modules, corresponding two and half
Ball spherical cavity forms a spherical cavity (6)；The center of the upper mold section (4) is provided with cast gate (2), and the center of the female die (9) is set
There is cold slug well (8), the cast gate (2) is connected by several running channels (7) uniform on land area with spherical cavity (6)；Each ball
Steam vent (3) is provided with the top of shape chamber (6).
A kind of 2. naphthalene ball manufacture mould according to claim 1, it is characterised in that：The upper mold section (4) and female die (9)
Two symmetrical positioning holes (5) are provided with same circumference；The upper mold section (4) sets two symmetrical tapped through holes (10), makees
To divide mould to be used, it is right angle or acute angle that the tapped through hole (10) is separated by angle with positioning hole (5).
A kind of 3. naphthalene ball manufacture mould according to claim 1, it is characterised in that：It is furnished with one in cast gate (2) top
The funnel (1) of activity.
A kind of 4. naphthalene ball manufacture mould according to claim 1, it is characterised in that：Described running channel (7) is short cylindrical shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720258284.3U CN207044561U (en) | 2017-03-16 | 2017-03-16 | A kind of naphthalene ball manufactures mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720258284.3U CN207044561U (en) | 2017-03-16 | 2017-03-16 | A kind of naphthalene ball manufactures mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207044561U true CN207044561U (en) | 2018-02-27 |
Family
ID=61488547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720258284.3U Active CN207044561U (en) | 2017-03-16 | 2017-03-16 | A kind of naphthalene ball manufactures mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207044561U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112662386A (en) * | 2020-12-23 | 2021-04-16 | 陕西日新石油化工有限公司 | Corrosion-inhibiting paraffin removal ball for oil pipeline of oil production plant and matched mould and manufacturing method thereof |
| CN115648478A (en) * | 2022-10-09 | 2023-01-31 | 南京昊翔机械制造有限公司 | Biodegradable granule extruding machine |
-
2017
- 2017-03-16 CN CN201720258284.3U patent/CN207044561U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112662386A (en) * | 2020-12-23 | 2021-04-16 | 陕西日新石油化工有限公司 | Corrosion-inhibiting paraffin removal ball for oil pipeline of oil production plant and matched mould and manufacturing method thereof |
| CN112662386B (en) * | 2020-12-23 | 2022-04-05 | 陕西日新石油化工有限公司 | Corrosion-inhibiting paraffin removal ball for oil pipeline of oil production plant and matched mould and manufacturing method thereof |
| CN115648478A (en) * | 2022-10-09 | 2023-01-31 | 南京昊翔机械制造有限公司 | Biodegradable granule extruding machine |
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