CN205027122U - Thermistor pottery porcelain core piece fritting furnace - Google Patents
Thermistor pottery porcelain core piece fritting furnace Download PDFInfo
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- CN205027122U CN205027122U CN201520749793.7U CN201520749793U CN205027122U CN 205027122 U CN205027122 U CN 205027122U CN 201520749793 U CN201520749793 U CN 201520749793U CN 205027122 U CN205027122 U CN 205027122U
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Abstract
The utility model relates to a thermistor pottery porcelain core piece fritting furnace belongs to and toasts sintering equipment technical field. This stove includes sintering section and the hot -air storage tank that has the heat preservation wall all around, still contains the cooling zone that has the heat preservation wall all around, the width direction both sides of sintering section are leading to the air -out wall at top respectively, the bottom of sintering section has towards the play aerofoil of bottom side, equal interval distribution has the honeycomb exhaust vent on air -out wall and the play aerofoil, the top return air duct of cooling zone leads to the hot -air storage tank, the hot -blast motor of area stirring fan is equipped with at the top of hot -air storage tank, one side of the neighbouring sintering section of hot -air storage tank leads to the top of sintering section through the horizontal blast pipe that is equipped with the accuse blast gate, leads to the bottom side of sintering section through the vertical blast pipe that is equipped with the accuse blast gate simultaneously. The utility model discloses can realize the warm accuracy of accuse, reliable, temperature steady.
Description
Technical field
The utility model relates to a kind of sintering furnace, especially a kind of thermistor ceramic chip sintering furnace, belongs to baking agglomerating plant technical field.
Background technology
NTC themistor is widely used in the occasions such as temperature survey, temperature-compensating, circuit protection as a kind of sensing element, and its core devices---ceramic chip adopts the transition metal oxide material of multiple different ratio, is made by refractory ceramics technique.
In ceramming process, the factor such as temperature curve, sintering atmosphere of sintering, all can produce considerable influence to the grain growth of pottery, microstructure etc., thus directly have influence on the performance of thermal resistor.Therefore need to control accurately the condition such as temperature curve, sintering atmosphere of sintering.
But the structure of existing sintering furnace is unreasonable, be therefore unfavorable for above-mentioned required accurate control.
Summary of the invention
The purpose of this utility model is: the unreasonable structure existed for above-mentioned prior art, by improving, proposes effectively to ensure that the process conditions such as sintering temperature curve are able to the thermistor ceramic chip sintering furnace accurately controlled.
In order to reach above object, the utility model thermistor ceramic chip sintering furnace comprises sintering stage and the hot-air storage tank that surrounding has heat insulation wall, also has the cooling section of heat insulation wall containing surrounding; The width both sides of described sintering stage are respectively the air-out wall towards top, and the bottom of described sintering stage has the exhausting plate towards bottom side, and described air-out wall and exhausting plate are all intervally distributed with cellular exhaust vent; The top return air duct of described cooling section leads to hot-air storage tank, the hot blast motor of band agitation fan is equipped with at the top of described hot-air storage tank, the side of the contiguous sintering stage of described hot-air storage tank leads to the top of sintering stage by the horizontal blast pipe that control air-valve is housed, the vertical ajutage simultaneously by being equipped with control air-valve leads to the bottom side of sintering stage.
Sintering stage of the present utility model is divided into upper and lower two controlled air intake passages, therefore can divide upper and lower two warm areas temperature control respectively, realize the accurate, reliable of temperature control.And because the hot blast of input stirs at hot-air storage tank in advance, the hot blast temperature that therefore hot-air is formed is stablized.In addition, cooling section had the supplementary air of air as hot-air storage tank of waste heat, not only be conducive to energy-conservation, and due to relative to supplementary outside air, hot-air storage tank less into and out of Air Temperature Difference, therefore be conducive to the homogeneous temperature of its inner air, thus be conducive to the sintering temperature curve accurately controlling sintering furnace.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described.
Fig. 1 is the structural representation of the utility model embodiment.
Detailed description of the invention
Embodiment one
The present embodiment thermistor ceramic chip sintering furnace basic structure as shown in Figure 1, comprises surrounding and has the sintering stage 1 of heat insulation wall and hot-air storage tank 6 and cooling section 12.The width both sides of sintering stage 1 are respectively the air-out wall 4 towards top, and bottom has the exhausting plate 5 towards bottom side, and air-out wall 4 and exhausting plate 5 are all intervally distributed with cellular exhaust vent.
The top return air duct 10 of cooling section 12 is towards the hot-air storage tank 6 with heat-insulation layer 7.The hot blast motor 9 of band agitation fan is equipped with at the top of hot-air storage tank 6, the side of the contiguous sintering stage 1 of hot-air storage tank 6.
Because the temperature of high performance electron ceramic material to sintering has very high requirement, sintering temperature needs to experience room temperature---firing temperature (about 1500 DEG C)---process of room temperature.Sintering needs to carry out at multiple different temperature section, temperature accurate, even, the factors such as the speed of heating, cooling, all can produce directly impact to the performance after ceramic firing.This sintering furnace also has following technical characterstic for this reason:
A, employing carbon-point heat, and ensure that the efficiency of heating, exotic material adopts mullite fiber plate, lightweight corundum;
The operating room of B, sintering stage is divided into upper and lower two warm areas, temperature detection adopts two thermocouples be arranged in the operating room of sintering stage to carry out, two warm areas adopt two controllers to control respectively respectively, can realize the accuracy of temperature control, reliability, uniformity.And add independently the 3rd temp controlled meter and, to carry out real-time temperature acquisition, achieve the functions such as the detection of temperature, record, warning;
C, have employed can the inlet temperature controller (maximum 32 sections of programs) that controls of many warm areas, by artificially setting the parameter such as temperature, time of different temperatures section, achieve the object of many warm areas sintering, and accurately can control the speed heating up or lower the temperature, make the size of body of heater be able to miniaturization owing to eliminating walking mechanism.
In addition, this sintering furnace also takes following technical measures:
A, in the operating room of sintering stage, being reserved with vent, being connected by the blower fan of Frequency Converter Control with employing, in the pre-burning stage, by controlling the frequency of blower fan, the great quantities of spare gas that transition metal oxide material produces can be got rid of.
B, sintering the stage, can according to the different needs of agglomerated material, gas with various (as air, nitrogen or other inert gas) is blown into from the outside, operating room of sintering stage by blower fan, and gas flowmeter is installed, accurately can measure, control to enter the flow of gas, in air intake outlet, the gas sensors such as nitrogen sensor, lambda sensor are installed, so that adjustment at any time enters kind and the concentration of gas as required.
In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (3)
1. a thermistor ceramic chip sintering furnace, comprises sintering stage and hot-air storage tank that surrounding has heat insulation wall, it is characterized in that: the cooling section also containing surrounding with heat insulation wall; The width both sides of described sintering stage are respectively the air-out wall towards top, and the bottom of described sintering stage has the exhausting plate towards bottom side, and described air-out wall and exhausting plate are all intervally distributed with cellular exhaust vent; The top return air duct of described cooling section leads to hot-air storage tank, the hot blast motor of band agitation fan is equipped with at the top of described hot-air storage tank, the side of the contiguous sintering stage of described hot-air storage tank leads to the top of sintering stage by the horizontal blast pipe that control air-valve is housed, the vertical ajutage simultaneously by being equipped with control air-valve leads to the bottom side of sintering stage.
2. a kind of thermistor ceramic chip sintering furnace according to claim 1, is characterized in that: the operating room of described sintering stage leaves the vent be connected with Frequency Converter Control blower fan.
3. a kind of thermistor ceramic chip sintering furnace according to claim 2, is characterized in that: described hot-air storage tank has heat-insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520749793.7U CN205027122U (en) | 2015-09-25 | 2015-09-25 | Thermistor pottery porcelain core piece fritting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520749793.7U CN205027122U (en) | 2015-09-25 | 2015-09-25 | Thermistor pottery porcelain core piece fritting furnace |
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| Publication Number | Publication Date |
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| CN205027122U true CN205027122U (en) | 2016-02-10 |
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| CN201520749793.7U Active CN205027122U (en) | 2015-09-25 | 2015-09-25 | Thermistor pottery porcelain core piece fritting furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106322986A (en) * | 2016-10-26 | 2017-01-11 | 丹阳正联知识产权运营管理有限公司 | Novel NTC thermistor sintering furnace |
| CN114872335A (en) * | 2022-05-26 | 2022-08-09 | 东莞市仕易陶瓷科技有限公司 | Automobile battery variable resistance protection element and preparation method thereof |
-
2015
- 2015-09-25 CN CN201520749793.7U patent/CN205027122U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106322986A (en) * | 2016-10-26 | 2017-01-11 | 丹阳正联知识产权运营管理有限公司 | Novel NTC thermistor sintering furnace |
| CN106322986B (en) * | 2016-10-26 | 2019-02-12 | 无锡市开元电子有限公司 | A kind of novel NTC thermistor sintering furnace |
| CN114872335A (en) * | 2022-05-26 | 2022-08-09 | 东莞市仕易陶瓷科技有限公司 | Automobile battery variable resistance protection element and preparation method thereof |
| CN114872335B (en) * | 2022-05-26 | 2024-01-16 | 东莞市仕易陶瓷科技有限公司 | Variable resistor protection element of automobile battery and preparation method |
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