CN104319193B - Fast acting fuse production technology - Google Patents
Fast acting fuse production technology Download PDFInfo
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- CN104319193B CN104319193B CN201410555630.5A CN201410555630A CN104319193B CN 104319193 B CN104319193 B CN 104319193B CN 201410555630 A CN201410555630 A CN 201410555630A CN 104319193 B CN104319193 B CN 104319193B
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- quartz sand
- fast acting
- acting fuse
- consolidation liquid
- solidification
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H69/00—Apparatus or processes for the manufacture of emergency protective devices
- H01H69/02—Manufacture of fuses
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Fuses (AREA)
Abstract
The invention discloses a kind of fast acting fuse production technology, comprise step: (1) is filled stone sand between melt and insulation shell, make the coated melt of quartz sand; (2) quartz sand is solidified; Wherein, step (2) specifically comprises the following steps: the fast acting fuse semi-finished product that step (1) is obtained are placed in the solidification chamber of sealing by a.; B. solidification chamber is vacuumized; C. consolidation liquid enters in solidification chamber, makes consolidation liquid infiltrate quartz sand; D. discharge the consolidation liquid in solidification chamber, retain the partially cured liquid immersed in quartz sand; E. heat in solidification chamber, solidification chamber is vacuumized, again to discharge the moisture in consolidation liquid simultaneously; F., after quartz sand solidification, obtained fast acting fuse is shifted out solidification chamber.According to fast acting fuse production technology provided by the invention, it improves the solidification effect of solidification quartz sand, blocks the air near melt, to improve the performance of fast acting fuse.
Description
Technical field
The present invention relates to the production technology of electric equipment, particularly relate to a kind of production technology of fast acting fuse.
Background technology
For the fast acting fuse of semiconductor protection, in order to protect day by day accurate and responsive semiconductor element, require that total Joule integral value of fuse is the smaller the better, during to make to exceed rated current, melt fuses open circuit at once.Total Joule integral value comprises two parts, pre arcing Joule integral value and arcing Joule integral value.When rated current is constant, to reduce pre arcing Joule integral value, then need the heat-sinking capability improving fast acting fuse; To reduce arcing Joule integral value, then need the arc quenching effect improving fast acting fuse.The quartz sand of coated melt is solidified, blocks the air near melt, all have positive effect to the heat-sinking capability and arc quenching effect improving fast acting fuse.
The traditional handicraft of current production fast acting fuse is: directly to packaged melt and quartz sand, treat that the semi-finished product fuse that quartz sand solidifies drips the liquid containing curing agent from top to down until whole fuse is full of curing agent, and then to dry.The problem of this traditional handicraft is: operate under air ambient, consolidation liquid can be caught the gas that uses leisure moments and be formed bubble, the performance when producing the fuse of high-power high rated current of this situation is particularly serious, it affects heat dispersion and the arc quenching effect of fast acting fuse, has a strong impact on the performance of fast acting fuse.
Patent publication No. is the method for operation that the Chinese patent document of CN103560053A discloses a kind of curing apparatus: a, solidification pre-treatment, and b, generation steam and negative pressure, c, fuse solidify.The problem of this method is: curing agent is powder, and granularity is less than 100 orders usually, in order to reach good solidification effect, the granularity of quartz sand normally between 40-100 order, fill with in sand process in vibrations, curing agent, with quartz sand meeting layering, causes local solidification agent concentration inconsistent; Before and after a batch of the inside, filling fuse curative concentration differs; Inside same fuse, upper and lower curative concentration differs.
Therefore, needing a kind of production technology of fast acting fuse badly, by improving the solidification effect of solidification quartz sand, blocking the air near melt, to improve the performance of fast acting fuse.
Summary of the invention
The object of this invention is to provide a kind of production technology of fast acting fuse, by improving the solidification effect of solidification quartz sand, blocking the air near melt, to improve the performance of fast acting fuse.
To achieve these goals, the invention discloses a kind of fast acting fuse production technology, comprise step: (1) is filled stone sand between melt and insulation shell, make the coated described melt of described quartz sand; (2) described quartz sand is solidified; Wherein, step (2) specifically comprises the following steps: the fast acting fuse semi-finished product that step (1) is obtained are placed in the solidification chamber of sealing by a.; B. solidification chamber is vacuumized; C. consolidation liquid enters in solidification chamber, makes consolidation liquid infiltrate quartz sand; D. discharge the consolidation liquid in solidification chamber, retain the partially cured liquid immersed in quartz sand; E. heat in solidification chamber, solidification chamber is vacuumized, again to discharge the moisture in consolidation liquid simultaneously; F., after quartz sand solidification, obtained fast acting fuse is shifted out solidification chamber.
Compared with prior art, fast acting fuse semi-finished product to be solidified are placed in the solidification chamber of sealing by fast acting fuse production technology provided by the invention, and vacuumize solidification chamber, discharge the air in solidification chamber, to prevent from catching in quartz sand solidification process the gas formation bubble that uses leisure moments; Consolidation liquid makes liquid state, and consolidation liquid discharges unnecessary consolidation liquid after infiltrating fast acting fuse, the consolidation liquid immersed in quartz sand is mixed with quartz sand very even, improves the solidification effect of quartz sand; By vacuumizing the heating of solidification chamber, remove part water in consolidation liquid, consolidation liquid forms colloid to solidify quartz sand.According to fast acting fuse production technology provided by the invention, quartz sand is solidified to block the generation of bubble in fast acting fuse under vacuum environment, consolidation liquid infiltrates quartz sand and quartz sand is mixed with consolidation liquid, and before curing the water in consolidation liquid is discharged, thus improve the solidification effect of solidification quartz sand, block the air near melt, to improve the performance of fast acting fuse.
Preferably, described consolidation liquid is the mixed solution of sodium silicate solution, potassium silicate solution or sodium metasilicate and potassium silicate.
Particularly, the mass percent of described consolidation liquid mesosilicic acid sodium or potassium silicate is 0.5%-10%, or the mass percent sum of described consolidation liquid mesosilicic acid sodium and potassium silicate is 0.5%-10%.
Preferably, step c is specially: enter solidification chamber on the downside of consolidation liquid self-curing chamber until submergence quartz sand, thus make consolidation liquid infiltrate quartz sand; Consolidation liquid enters solidification chamber from the downside in solidification chamber, to reduce to the half-finished impact of fast acting fuse in solidification chamber when consolidation liquid enters solidification chamber, thus reduces that quartz sand in the fast acting fuse semi-finished product that not yet solidify is stressed to be offset.
Particularly, in step c, after consolidation liquid submergence quartz sand, leave standstill 20min ~ 40min, fully infiltrate quartz sand to make consolidation liquid.
Preferably, in step e, 80 DEG C-100 DEG C are heated to solidification chamber; Under the temperature conditions of 80 DEG C-100 DEG C, the moisture in consolidation liquid slowly evaporates, and the quartz sand of solidification can not crack.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of fast acting fuse production technology of the present invention.
Fig. 2 is the structural representation of the fast acting fuse production equipment realizing fast acting fuse production technology of the present invention.
Embodiment
By describing technology contents of the present invention, structural feature in detail, realized object and effect, accompanying drawing is coordinated to be explained in detail below in conjunction with execution mode.
As shown in Figure 1, fast acting fuse production technology provided by the invention, comprises step: (1) is filled stone sand between melt and insulation shell, makes the coated melt of quartz sand; (2) quartz sand is solidified.Wherein, step (2) specifically comprises the following steps: the fast acting fuse A semi-finished product that step (1) is obtained are placed in the solidification chamber 100a of sealing by a.; B. solidification chamber 100a is vacuumized; C. consolidation liquid enters in solidification chamber 100a, makes consolidation liquid infiltrate quartz sand; D. discharge the consolidation liquid in solidification chamber 100a, retain the partially cured liquid immersed in quartz sand; E. heat in solidification chamber 100a, solidification chamber 100a is vacuumized, again to discharge the moisture in consolidation liquid simultaneously; F., after quartz sand solidification, obtained fast acting fuse A is shifted out solidification chamber 100a.
For ease of the understanding to fast acting fuse production technology provided by the invention, the fast acting fuse production equipment shown in composition graphs 2 is illustrated.
Fast acting fuse production equipment as shown in Figure 2 comprises sealing device 100, consolidation liquid feedway 200, vacuum extractor 300, control device 400 and heater (not shown), sealing device 100 have for accommodating fast acting fuse A in close solidification chamber 100a, consolidation liquid feedway 200 is communicated in solidification chamber 100a, vacuum extractor 300 is communicated in the upside of solidification chamber 100a, heater is used for heating 100a to solidification chamber 100a, and control device 400 controls the work of consolidation liquid feedway 200 and vacuum extractor 300.
Shown in composition graphs 1 and Fig. 2, step (2) specifically comprises the following steps:
A. the fast acting fuse A semi-finished product A that step (1) is obtained is placed in the solidification chamber 100a of sealing;
Particularly, as shown in Figure 2, sealing device 100 comprises top pressure closure 110 and sealed body 120.Wherein, sealed body 120 has a solidification chamber 100a, and offer in the upper end of sealed body 120 be communicated in solidification chamber 100a pick and place mouth, top pressure closure 110 for close pick and place mouth.Open top pressure closure 110, pick and place the opening-like state of mouth, the fast acting fuse A semi-finished product A that step (1) is obtained can be put into solidification chamber 100a by picking and placeing mouth by operating personnel easily, after material loading completes, close top pressure closure 110, top pressure closure 110 block pick and place mouth make solidification chamber 100a in close, thus to solidification chamber 100a in fast acting fuse A to be solidified be cured.Top pressure closure 110 and sealed body 120 can be Split type structure, can also be can the connection of folding, as hinged or be coupling.
Further, for convenience of carrying out material loading and discharging to fast acting fuse production equipment, as shown in Figure 2, can the semi-finished product of fast acting fuse A to be solidified be positioned in gratings, when material loading or discharging are carried out to fast acting fuse production equipment, only need put into or take out and be positioned with the half-finished gratings of fast acting fuse A.
B. solidification chamber 100a is vacuumized;
Particularly, as shown in Figure 2, one end of the second feed tube 310 is communicated in vacuum extractor 300, and the other end of the second feed tube 310 is communicated in the upside of solidification chamber 100a.Wherein, vacuum extractor 300 can be vacuum pump.Vacuum pump 300 works, to solidification chamber 100a vacuumize discharge solidification chamber 100a in air, with reduce fast acting fuse A to be solidified in the curing process gas be mixed into.
Fast acting fuse production equipment as shown in Figure 2, for ease of controlling the production process of fast acting fuse A, on the second feed tube 310, be provided with the second control valve 311, control device 400 can control the flowing of the consolidation liquid between liquid bath 210 and solidification chamber 100a easily by the switch of electrical control second control valve 311.By to solidification chamber 100a vacuumize, reduce fast acting fuse A to be solidified in the curing process gas be mixed into.Understandable, the connected entrance place of the second feed tube 310 and solidification chamber 100a is higher than solidifying fast acting fuse A to be solidified in the 100a of chamber, thus the solidification chamber 100a be convenient to being filled with consolidation liquid vacuumizes.
C. consolidation liquid enters in solidification chamber 100a, makes consolidation liquid infiltrate quartz sand;
Particularly, enter solidification chamber 100a on the downside of consolidation liquid self-curing chamber 100a until submergence quartz sand, thus make consolidation liquid infiltrate quartz sand.
In conjunction with as shown in Figure 2, consolidation liquid feedway 200 comprises liquid bath 210 and the first feed tube 220.Liquid bath 210 is for accommodating consolidation liquid, and the opening-like state in the top of liquid bath 210; One end of first feed tube 220 is communicated in the bottom of liquid bath 210, and the other end of the first feed tube 220 is communicated in the bottom of solidification chamber 100a.After consolidation liquid in liquid bath 210 enters the first feed tube 220, enter in the bottom of solidification chamber 100a in solidification chamber 100a, make in consolidation liquid bottom-up inflow solidification chamber 100a, to reduce to the impact of fast acting fuse A semi-finished product A in solidification chamber 100a when consolidation liquid enters solidification chamber 100a, thus reduce that quartz sand in fast acting fuse A semi-finished product A is stressed to be offset.
Fast acting fuse production equipment as shown in Figure 2, for ease of controlling the production process of fast acting fuse A, the first feed tube 220 is provided with the first control valve 221.Control device 400 can control the flowing of the consolidation liquid between liquid bath 210 and solidification chamber 100a easily by the switch of electrical control first control valve 221.After consolidation liquid submergence quartz sand, leave standstill 20min ~ 40min, about being preferably half an hour, fully infiltrate quartz sand to make consolidation liquid.
Preferably, as shown in Figure 2, liquid bath 210 keeps roughly the same height with solidification chamber 100a; Conveying motor 222 is provided with on the first feed tube 220.When liquid level in liquid bath 210 is lower, when relying on the deadweight of consolidation liquid to be not enough to fast acting fuse A to be solidified in submergence solidification chamber 100a, conveying motor 222 works and is delivered in solidification chamber 100a the consolidation liquid in liquid bath 210 with fast acting fuse A to be solidified in submergence solidification chamber 100a.Also liquid bath 210 can be placed in eminence, that is, the connected entrance place of liquid bath 210 and the first feed tube 220 is arranged in the top of solidifying chamber 100a fast acting fuse A to be solidified; Open the first control valve 221, the consolidation liquid in liquid bath 210 exports in solidification chamber 100a through the first feed tube 220 under gravity.
Consolidation liquid is the mixed solution of sodium silicate solution, potassium silicate solution or sodium metasilicate and potassium silicate; Preferably, when consolidation liquid be sodium silicate solution or potassium silicate solution time, the mass percent of consolidation liquid mesosilicic acid sodium or potassium silicate is 0.5%-10%; When the mixed solution that consolidation liquid is sodium metasilicate and potassium silicate, the mass percent sum of consolidation liquid mesosilicic acid sodium and potassium silicate is 0.5%-10%.D. discharge the consolidation liquid in solidification chamber 100a, retain the partially cured liquid immersed in quartz sand;
Particularly, after consolidation liquid soaks fast acting fuse A completely, conveying motor 222 reverse operation, is oppositely delivered to the consolidation liquid in solidification chamber 100a in liquid bath 210, consolidation liquid can be recycled.Certainly, in other embodiments, consolidation liquid can also through discharging with the Drainage pipe be communicated with on the downside of solidification chamber 100a.
E. heat in solidification chamber 100a, solidification chamber 100a is vacuumized, again to discharge the moisture in consolidation liquid simultaneously;
Particularly, heater is heated to 80 DEG C-100 DEG C to solidification chamber 100a, and under this temperature conditions, the moisture in consolidation liquid slowly evaporates, and can not produce the quartz sand in larger water vapour impact fast acting fuse A semi-finished product.Solidification chamber 100a is vacuumized again, to discharge the moisture in consolidation liquid, makes consolidation liquid form colloidal state, to solidify quartz sand.
Preferably, the fire end of heater is arranged at the outer wall of sealing device 100, heats the outer wall of sealing device 100, makes to be heated evenly in solidification chamber 100a, avoids local temperature in solidification chamber 100a too high.
F., after quartz sand solidification, obtained fast acting fuse A is shifted out solidification chamber 100a.
Shown in composition graphs 2, open top pressure closure 110, the fast acting fuse A solidified can take out by picking and placeing in mouthful self-curing chamber 100a by operating personnel easily.
Compared with prior art, fast acting fuse A semi-finished product to be solidified are placed in the solidification chamber 100a of sealing by fast acting fuse production technology provided by the invention, and vacuumize solidification chamber 100a, discharge the air in solidification chamber 100a, to prevent from catching in quartz sand solidification process the gas formation bubble that uses leisure moments; Consolidation liquid makes liquid state, and consolidation liquid discharges unnecessary consolidation liquid after infiltrating fast acting fuse A, the consolidation liquid immersed in quartz sand is mixed with quartz sand very even, improves the solidification effect of quartz sand; By vacuumizing solidification chamber 100a heating, remove part water in consolidation liquid, consolidation liquid forms colloid to solidify quartz sand.According to fast acting fuse production technology provided by the invention, solidify quartz sand to block the generation of bubble in fast acting fuse A under vacuum environment, consolidation liquid infiltrates quartz sand and quartz sand is mixed with consolidation liquid; Curing agent is dissolved as liquid state, fully to infiltrate with quartz sand, after fully infiltrating with quartz sand, the portion of water in consolidation liquid is discharged by heating, consolidation liquid is made to be that colloidal state is to solidify quartz sand, thus improve the solidification effect of solidification quartz sand, block the air near melt, to improve the performance of fast acting fuse A.
Above disclosedly be only the preferred embodiments of the present invention, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the present patent application the scope of the claims is done, still belong to the scope that the present invention is contained.
Claims (6)
1. a fast acting fuse production technology, comprises step: (1) is filled stone sand between melt and insulation shell, makes the coated described melt of described quartz sand; (2) described quartz sand is solidified; It is characterized in that, step (2) specifically comprises the following steps:
A. the fast acting fuse semi-finished product that step (1) is obtained are placed in the solidification chamber of sealing;
B. solidification chamber is vacuumized;
C. consolidation liquid enters in solidification chamber, makes consolidation liquid infiltrate quartz sand;
D. discharge the consolidation liquid in solidification chamber, retain the partially cured liquid immersed in quartz sand;
E. heat in solidification chamber, solidification chamber is vacuumized, again to discharge the moisture in consolidation liquid simultaneously;
F., after quartz sand solidification, obtained fast acting fuse is shifted out solidification chamber.
2. fast acting fuse production technology as claimed in claim 1, it is characterized in that, described consolidation liquid is the mixed solution of sodium silicate solution, potassium silicate solution or sodium metasilicate and potassium silicate.
3. fast acting fuse production technology as claimed in claim 1, it is characterized in that, the mass percent of described consolidation liquid mesosilicic acid sodium or potassium silicate is 0.5%-10%, or the mass percent sum of described consolidation liquid mesosilicic acid sodium and potassium silicate is 0.5%-10%.
4. fast acting fuse production technology as claimed in claim 1, it is characterized in that, step c is specially: enter solidification chamber on the downside of consolidation liquid self-curing chamber until submergence quartz sand, thus make consolidation liquid infiltrate quartz sand.
5. fast acting fuse production technology as claimed in claim 4, is characterized in that, in step c, after consolidation liquid submergence quartz sand, leaves standstill 20min ~ 40min, fully infiltrates quartz sand to make consolidation liquid.
6. fast acting fuse production technology as claimed in claim 1, is characterized in that, is heated to 80 DEG C-100 DEG C in step e to solidification chamber.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410555630.5A CN104319193B (en) | 2014-10-17 | 2014-10-17 | Fast acting fuse production technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410555630.5A CN104319193B (en) | 2014-10-17 | 2014-10-17 | Fast acting fuse production technology |
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| CN104319193A CN104319193A (en) | 2015-01-28 |
| CN104319193B true CN104319193B (en) | 2016-03-30 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105679622B (en) * | 2016-02-26 | 2017-10-31 | 广东中贝能源科技有限公司 | A kind of quartz sand fuse and its manufacture method |
| CN108911541B (en) * | 2018-09-04 | 2021-02-19 | 武汉标迪电子科技有限公司 | Filler-containing closed fuse and curing agent and curing method thereof |
| CN110504141B (en) * | 2019-08-22 | 2021-06-18 | 广东中贝能源科技有限公司 | Manufacturing method of EV fuse |
| CN111383863B (en) * | 2020-02-27 | 2022-03-04 | 西北核技术研究院 | Anti-crack curing method for arc extinguishing sand column of quick fuse |
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| CN203674111U (en) * | 2013-11-19 | 2014-06-25 | 浙江茗熔电器保护系统有限公司 | Solidifying device control system |
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| US3947797A (en) * | 1974-06-07 | 1976-03-30 | The Machlett Laboratories, Inc. | Circuit interrupting means |
| DE3632413A1 (en) * | 1986-09-24 | 1988-03-31 | Demetron | METHOD FOR THE PRODUCTION OF FLINKING MELTFUSE |
| CN101488429A (en) * | 2008-01-17 | 2009-07-22 | 西门子公司 | Method for treating and fixing quartz sand through activation, fixed quartz sand body and excess voltage protection device |
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