CN106854074A - Inorganic solid carbon resistance and its manufacture method - Google Patents
Inorganic solid carbon resistance and its manufacture method Download PDFInfo
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- CN106854074A CN106854074A CN201510907836.4A CN201510907836A CN106854074A CN 106854074 A CN106854074 A CN 106854074A CN 201510907836 A CN201510907836 A CN 201510907836A CN 106854074 A CN106854074 A CN 106854074A
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Abstract
The invention discloses a kind of Inorganic solid carbon resistance and its manufacture method, the Inorganic solid carbon resistance is formulated by the raw material of following mass ratios, wherein kaolin 30~75%, quartz sand 10~50%, feldspar 10~30%, carbon 1~10%, aluminium powder 0.1%~10%, adhesive 1~10%.The raw material of Inorganic solid carbon resistance of the present invention are readily available, and the characteristics of the resistance being made has noninductive, big thermal capacitance, can be good at high pressure resistant, resistance to heavy current impact, and resistance precisely and stabilization, will not influence the change of resistance because of the length of use time.The manufacture method of Inorganic solid carbon resistance of the invention, technological process is simple, and equipment cost is low, and the precision for being made resistance is high, is suitable to be widely used in century industrial processes.
Description
Technical field
The invention belongs to the technical field of power electronics, and in particular to a kind of Inorganic solid carbon resistance and its manufacture method.
Background technology
Graphite ceramic linear resistor is one of critical electrical guard block of development ehv power transmission equipment, is used to limit primary cut-out in operation
During the overvoltage that produces, the graphite ceramic linear resistor that the current country uses is derived mainly from import.In graphite ceramic linear resistor production process
There is resistivity dispersiveness big, the problems such as the heat endurance and poor mechanical strength of product, cause technical difficulty big, product qualified rate is very low, raw
Produce high cost, it is difficult to meet the demand of power industry development.
Then, Chinese invention patent application number be " A of CN 102426891 ", patent name for " a kind of graphite ceramic linear resistor and
A kind of graphite ceramic linear resistor and its production method are disclosed in the patent document of its production method ", is by Al2O3, kaolin, talcum
Powder, graphite, sodium metasilicate, 6 kinds of raw materials of adhesive and dispersant, and be made by crushing, slurrying, granulation, sintering.The linear electricity
Resistance can reliability it is high, in the absence of such as film class, line around quasi-resistance failure phenomenon, and bulk resistor, big thermal capacitance, high pressure resistant, noninductive, energy
Resistance to more heavy current impact and absorption on-peak electric energy higher, are entirely capable of meeting the performance requirement of 750kV or 1000kV breaker closing resistance.Together
When, also with formula material less varieties, technique is easily controlled, and equipment and technical process are simple, the advantages of be easy to industrialized production.
The content of the invention
For weak point present in above-mentioned technology, the present invention provides a kind of high pressure resistant, resistance to high current and the strong Inorganic solid carbon electricity of stability
Resistance and its manufacture method.
In order to achieve the above object, a kind of Inorganic solid carbon resistance of the invention, is formulated by the raw material of following mass ratios:
Kaolin 30~75%；
Quartz sand 10~50%；
Feldspar 10~30%；
Carbon 1~10%；
Aluminium powder 0.1%~10%；
Adhesive 1~10%.
Wherein, raw material aluminium powder is pulverized particles, and single aluminium powder particle is in flakey, the piece footpath of the single aluminium powder particle and thickness proportion
It is 40：1~100：1.
Wherein, raw material feldspar is that chemical analysis is the orthoclase of SiO2, Al2O3, Fe2O3, K2O and Na2O, and the feldspar is powder
Last current state.
Wherein, raw material adhesive is the mixture of sodium metasilicate, carboxymethylcellulose calcium, polyvinyl alcohol or three.
Wherein, raw material quartz sand is quartz through the broken glass sand particle for processing.
The invention also discloses a kind of manufacture method of Inorganic solid carbon resistance, comprise the following steps：
S1, mixing, by each raw material according to kaolin 30~75%, quartz sand 10~50%, feldspar 10~30%, carbon 1~10%, aluminium powder
0.1%~10% and the mass ratio of adhesive 1~10% weighed and mixed；
S2, ball milling, the raw material that will be mixed are added to and grinding are carried out in ceramic ball mill, and grinding time is 48~96h；
S3, granulation compacting, the good raw material of ball milling into being granulated in comminutor, and using hydraulic press by the powder pressing after granulation into pre-
Set the raw embryo of shape；
S4, sintering are polished, and the raw embryo for suppressing sinter molding in 1100~1500 DEG C of special atmosphere oven is right after naturally cooling to room temperature
Two electrode end surfaces are ground with grinding machine；
S5, electrode metallization, using flame gun on smooth electrode end surface sandblast aluminium dust, formed positive and negative electrode, and electrode with
Outer position sprays insulating material, so that shaping solid carbon resistance；
S6, pulse test, charge-discharge test is carried out by the solid carbon resistance being molded by the way of capacitor charge and discharge, and the product of test passes is applied
Cover and indicate and be packaged into finished product, the product of test failure is eliminated and not used.
Wherein, the comminutor for occurring in S3 includes pressure fan, air exhauster and atomizer, and the pressure fan regulation is set to 34Hz, enters
Air temperature is set to 215 DEG C, and the air exhauster regulation is set to 38Hz, and leaving air temp is set to 100 DEG C, and the atomizer regulation is set to 26Hz,
Institute's amyloplastid diameter is less than 3 millimeters.
Wherein, the hydraulic press for occurring in S3 is 40 t hydraulic press, is pressed with 40 t hydraulic press, is made raw embryo for cylinder
Type idiosome.
Wherein, the raw material aluminium powder for being used in S1 is pulverized particles, and single aluminium powder particle is in flakey, the piece footpath of the single aluminium powder particle
It is 40 with thickness proportion：1~100：1.
Wherein, the raw material adhesive for being used in S1 is the mixture of sodium metasilicate, carboxymethylcellulose calcium, polyvinyl alcohol or three.
The beneficial effects of the invention are as follows：Compared with prior art, the raw material of Inorganic solid carbon resistance of the present invention are readily available, the resistance being made
The characteristics of with noninductive, big thermal capacitance, can be good at high pressure resistant, resistance to heavy current impact, resistance precisely and stabilization, will not be because of making
The change of resistance is influenceed with the length of time.Present invention employs different raw material, the pulse energy density of the product of generation is set to reach 375 Jiao
Ear/cubic centimetre.
The manufacture method of Inorganic solid carbon resistance of the invention, technological process is simple, and equipment cost is low, and the precision for being made resistance is high, is suitable to
It is widely used in century industrial processes.
Specific embodiment
Embodiment 1
1) formula for raw stock is：Territory 32Kg. high；
Quartz sand 28kg.；
Feldspar 12kg.；
Carbon 6.4kg；.
Aluminium powder 1.6kg；
Bonding agent 4.0kg.
2) manufacture craft is：
The above-mentioned feed kaolin for weighing up, quartz sand, feldspar, carbon dust, aluminium powder, bonding agent are put into ball milling 24 hours in ball mill.
Then granulated with centrifugal granulator, particle diameter is less than 3 millimeters.The powder that will be granulated loads in mould, is suppressed with 40 t hydraulic press
Shaping, is made 73 millimeters of diameter, the cylindrical type idiosome of 35 millimeters of height.The idiosome that will be suppressed is put into 1350 DEG C of atmosphere furnace and is burnt
Knot.After naturally cooling to room temperature, two electrode end surfaces are ground, reached smooth.Aluminium powder is sprayed with flame gun form electrode.Will
The side of resistance be just made after insulation coating the real core carbon resistance 10A of 0.8 Ω.
Embodiment 2
Formula for raw stock is：
Kaolin 42kg.；
Quartz sand 6kg.；
Feldspar 6kg.；
Carbon 1.2kg.；
Aluminium powder 1.8kg；.
Bonding agent 3kg..
Manufacture craft is：
The above-mentioned feed kaolin for weighing up, quartz sand, feldspar, carbon dust, aluminium powder, bonding agent are put into ball milling 36 hours in ball mill.
Then granulated with centrifugal granulator, particle diameter is less than 4 millimeters.The powder that will be granulated loads in mould, is suppressed with 10 t hydraulic press
Shaping, is made 35 millimeters of diameter, the cylindrical type idiosome of 60 millimeters of height.The idiosome that will be suppressed is put into 1300 DEG C of atmosphere furnace and is burnt
Knot.After naturally cooling to room temperature, two electrode end surfaces are ground, reached smooth.Aluminium powder is sprayed with flame gun form electrode.
The side of resistance be just made after insulation coating the real core carbon of 20 Ω as electrical connection section for copper metal cap 11B in the side pressure of resistance two
Resistance 10B.
Claims (3)
1. a kind of Inorganic solid carbon resistance, it is characterised in that be formulated by the raw material of following mass ratios：
Kaolin 30~75%；
Quartz sand 10~50%；
Feldspar 10~30%；
Carbon 1~10%；
Aluminium powder 0.1%~10%；
Adhesive 1~10%.
2. Inorganic solid carbon resistance according to claim 1, it is characterised in that raw material aluminium powder is pulverized particles, single aluminium powder particle
In flakey, piece footpath and the thickness proportion of the single aluminium powder particle are 40：1~100：1.
3. a kind of manufacture method of Inorganic solid carbon resistance, it is characterised in that comprise the following steps：
S1, mixing, by each raw material according to kaolin 30~75%, quartz sand 10~50%, feldspar 10~30%, carbon 1~10%, aluminium powder
0.1%~10% and the mass ratio of adhesive 1~10% weighed and mixed；
S2, ball milling, the raw material that will be mixed are added to and grinding are carried out in ceramic ball mill, and grinding time is 24~96h；
S3, granulation compacting, the good raw material of ball milling into being granulated in comminutor, and using hydraulic press by the powder pressing after granulation into default
The raw embryo of setting shape；
S4, sintering are polished, the raw embryo for suppressing sinter molding in 1100~1500 DEG C of special atmosphere oven, after naturally cooling to room temperature, to two
Individual electrode end surface is ground with grinding machine；
S5, electrode metallization, using flame gun on smooth electrode end surface sandblast aluminium dust, positive and negative electrode is formed, and beyond electrode
Position sprays insulating material, so that shaping solid carbon resistance；
S6, pulse test, charge-discharge test, the product coating of test passes are carried out by the solid carbon resistance being molded by the way of capacitor charge and discharge
Indicate and be packaged into finished product, the product of test failure is eliminated and not used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510907836.4A CN106854074A (en) | 2015-12-09 | 2015-12-09 | Inorganic solid carbon resistance and its manufacture method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510907836.4A CN106854074A (en) | 2015-12-09 | 2015-12-09 | Inorganic solid carbon resistance and its manufacture method |
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| Publication Number | Publication Date |
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| CN106854074A true CN106854074A (en) | 2017-06-16 |
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ID=59132386
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| CN201510907836.4A Pending CN106854074A (en) | 2015-12-09 | 2015-12-09 | Inorganic solid carbon resistance and its manufacture method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112824345A (en) * | 2020-07-31 | 2021-05-21 | 北京七一八友晟电子有限公司 | Pulse-resistant and surge-resistant ceramic resistor and manufacturing process thereof |
| CN114804834A (en) * | 2021-01-28 | 2022-07-29 | 上海上纳电工器材有限公司 | Low-temperature sintered carbon composite ceramic linear resistor and preparation method thereof |
| CN114890798A (en) * | 2022-02-16 | 2022-08-12 | 璟密(南京)电子科技有限公司 | Preparation process of inorganic solid resistor |
-
2015
- 2015-12-09 CN CN201510907836.4A patent/CN106854074A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112824345A (en) * | 2020-07-31 | 2021-05-21 | 北京七一八友晟电子有限公司 | Pulse-resistant and surge-resistant ceramic resistor and manufacturing process thereof |
| CN114804834A (en) * | 2021-01-28 | 2022-07-29 | 上海上纳电工器材有限公司 | Low-temperature sintered carbon composite ceramic linear resistor and preparation method thereof |
| CN114890798A (en) * | 2022-02-16 | 2022-08-12 | 璟密(南京)电子科技有限公司 | Preparation process of inorganic solid resistor |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170616 |
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| WD01 | Invention patent application deemed withdrawn after publication |