CN106229028B - A kind of tubular oxygen sensor burning platinum slurry and preparation method thereof altogether - Google Patents
A kind of tubular oxygen sensor burning platinum slurry and preparation method thereof altogether Download PDFInfo
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- CN106229028B CN106229028B CN201610682740.7A CN201610682740A CN106229028B CN 106229028 B CN106229028 B CN 106229028B CN 201610682740 A CN201610682740 A CN 201610682740A CN 106229028 B CN106229028 B CN 106229028B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
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- Manufacturing & Machinery (AREA)
- Measuring Oxygen Concentration In Cells (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention discloses a kind of tubular oxygen sensor with platinum slurry and preparation method thereof is burnt altogether, belong to the electric slurry field of informational function new material.Such a tubular oxygen sensor includes platinum powder, lead-free glass powder, inorganic additive and organic bond with platinum slurry is burnt altogether.The glass dust for the inorganic bond phase that tubular oxygen sensor is depended in slurry with the reliability for burning platinum slurry altogether provides good bonding, the platinum powder electrical property good with oxide synergy effect offer.Tubular oxygen sensor does not contain the poisonous and harmful substances such as lead, cadmium, mercury, Cr VI with platinum slurry is burnt altogether according to environmental requirement in formula of size.
Description
Technical field
The present invention relates to a kind of automobile using tubular oxygen sensor burning platinum slurry altogether
Background technology
Automobile using tubular oxygen sensor is using the oxygen voltage in Ceramic sensible devices measurement automobile exhaust pipeline, so as to count
Corresponding oxygen concentration is calculated, to monitor and control air-fuel ratio, so as to ensure that motor vehicle exhaust emission is up to standard.
Automobile using tubular oxygen sensor operation principle is：Its sleeve pipe is zirconium oxide material, plays a part of similar electrolyte.
Potential difference is produced according to the difference in oxygen concentration of Zirconia ferrule both sides, and difference in oxygen concentration is bigger, potential difference is bigger, in lambda sensor electricity
A high voltage (0.6~1V) is produced between pole, this voltage signal is transferred into automobile ECU enhanced processing, and it is sensed according to oxygen
The voltage signal regulation oil-gas ratio of device, so lambda sensor is the key componentses of electronic control fuel metering.
The glass dust for the inorganic bond phase that tubular oxygen sensor is depended in slurry with the reliability for burning platinum slurry altogether provides good
Good bonding, platinum powder provide good electrical property with oxide synergy effect.
Tubular oxygen sensor does not contain lead, cadmium, mercury, Cr VI etc. with platinum slurry is burnt altogether according to environmental requirement in formula of size
Poisonous and harmful substance.
The content of the invention
It is an object of the invention to provide a kind of automobile using tubular oxygen sensor with platinum slurry is burnt altogether, it is not leaded, meets environmental protection
It is required that；It is good with the sintering matching of zirconium oxide porcelain tube, and adhesive strength is excellent.
Automobile using tubular oxygen sensor proposed by the present invention is starched with burning platinum altogether, it is characterised in that：Such a tubular oxygen sensor
Include platinum powder, lead-free glass powder, inorganic additive and organic bond with common burning platinum slurry.
Platinum powder wherein used is spherical platinum powder, disperses excellent, purity >=99.95%, and its average grain diameter is 0.2~0.5 micro-
Rice.In percentage by weight, its dosage is：60%~75%.
Lead-free glass powder wherein used is calcium borosilicate system glass；The composition and percetage by weight of the lead-free glass powder be
Calcium oxide 30~50%, boric acid 10~25%, silica 20~40%, zinc oxide 5~10%, zirconium oxide 0.1~2%, glass
Glass powder each component percentage by weight sum is 100%, and its dosage is：1%~10%；Glass dust average grain diameter≤5 μm, softening point
For 700~750 DEG C.This glass meet environmental protection requirement, can fully soak Zirconia ferrule and platinum powder, so as to ensure platinum powder with
Zirconia ferrule has good bonding.
Inorganic additive wherein used is the one or more in aluminum oxide, zirconium oxide, zinc oxide, cupric oxide, yttrium oxide；
In percentage by weight, its dosage is：3.2%~10%.
Organic bond wherein used is with one kind or more that resin is in acrylic resin, ethyl cellulose, epoxy resin
Kind；In percentage by weight, its dosage is：1%~3%.
Organic bond wherein used with solvent be terpinol, butyl carbitol, determine base carbitol acetate, in one
Kind；In percentage by weight, its dosage is：15%~18%.
Organic bond used additives wherein used are in dibutyl phthalate, butyl stearate, lecithin, Span
It is one or more；In percentage by weight, its dosage is：2%~4%.
Brief description of the drawings
Fig. 1 and Fig. 2 is that platinum starches configuration of surface figure after sintering in the present invention.
Embodiment
Automobile using tubular oxygen sensor proposed by the present invention includes platinum powder, lead-free glass powder, inorganic addition with platinum slurry is burnt altogether
Agent and organic bond.
Platinum powder is spherical platinum powder, and purity >=99.95%, its average grain diameter is 0.2~0.5 micron.According to slurry weight
Percentages, its dosage are：60%~75%.
Lead-free glass powder is calcium borosilicate system glass；The composition and percetage by weight of the lead-free glass powder are calcium oxide 30
~50%, boric acid 10~25%, silica 20~40%, zinc oxide 5~10%, zirconium oxide 0.1~2%, glass dust each group
It is 100% to divide percentage by weight sum, and its dosage is：1%~10%；Glass dust average grain diameter≤5 μm, softening point be 700~
750℃；This glass meets the requirement of environmental protection, Zirconia ferrule and platinum powder can be fully soaked, so as to ensure platinum powder and zirconium oxide
Sleeve pipe has good bonding.
Inorganic additive is the one or more in aluminum oxide, zirconium oxide, zinc oxide, cupric oxide, yttrium oxide；According to slurry
Percentage by weight meter, its dosage are：3.2%~10%.
Organic bond is with the one or more that resin is in acrylic resin, ethyl cellulose, epoxy resin；According to slurry
Expect percentage by weight meter, its dosage is：1%~3%.
Organic bond with solvent be terpinol, butyl carbitol, determine base carbitol acetate, in one kind；According to slurry
Expect percentage by weight meter, its dosage is：15%~18%.
Organic bond used additives are dibutyl phthalate, butyl stearate, lecithin, one kind in Span or more
Kind；According to weight percent slurry meter, its dosage is：2%~4%.
Prepare lead-free glass powder：By the composition calcium oxide 30~50%, boric acid 10~25%, dioxy of the lead-free glass powder
SiClx 20~40%, zinc oxide 5~10%, zirconium oxide 0.1~2%, glass dust each component percentage by weight sum are 100%,
Uniformly mixing is put into ceramic crucible by a certain percentage, is founded in Muffle furnace.Glass melting temperature:800~1300 DEG C,
30~90min of melting time；Water quenching, broken, ball milling, excessively 400 eye mesh screens, drying can obtain the unleaded glass that particle diameter is not more than 5 μm
Glass powder.
Prepare organic bond：According to organic bond percentage by weight meter, 5%~12% resin is added 75%~
In 85% organic solvent, 80~90 DEG C of stirring and dissolving 90min are heated；10%~20% auxiliary agent is added in above-mentioned solution,
Stirring insulation 30min；Cooling, organic bond is in pale yellow transparent state.
Tubular oxygen sensor is prepared to be starched with burning platinum altogether：According to slurry weight percentages, by 1%~3% crown glass
Powder and 3.2%~10% inorganic additive add 18%~25% organic bond, fully dispersed；60%~75% is added afterwards
Platinum powder, through three-high mill roll 15 times, obtain tubular oxygen sensor with altogether burn platinum starch.
Embodiment 1：According to slurry weight percentages, by 2% lead-free glass powder and 7% inorganic additive zirconium oxide
20% organic bond is added, it is fully dispersed；72% platinum powder is added afterwards, is rolled 15 times through three-high mill, obtains tubular type oxygen biography
Sensor can be used for preparing automobile using bushing type lambda sensor with platinum slurry, platinum slurry is burnt altogether.
Embodiment 2：According to slurry weight percentages, 1.6% lead-free glass powder and 7% inorganic additive are aoxidized
Zirconium adds 20% organic bond, fully dispersed；71.4% platinum powder is added afterwards, is rolled 15 times through three-high mill, is obtained tubular type
Lambda sensor can be used for preparing automobile using bushing type lambda sensor with platinum slurry, platinum slurry is burnt altogether.
Embodiment 3：According to slurry weight percentages, by 1.6% lead-free glass powder and 6.4% inorganic additive oxygen
Change zirconium and add 20% organic bond, it is fully dispersed；72% platinum powder is added afterwards, is rolled 15 times through three-high mill, is obtained tubular type
Lambda sensor can be used for preparing automobile using bushing type lambda sensor with platinum slurry, platinum slurry is burnt altogether.
Above-mentioned each embodiment is the further explanation made to the above of the present invention, but should not be construed as the present invention
The scope of above-mentioned theme is only limitted to above-described embodiment.It should be pointed out that for those skilled in the art
For, without departing from the technical principles of the invention, some improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (2)
1. a kind of tubular oxygen sensor is starched with burning platinum altogether, it is characterised in that：Such a tubular oxygen sensor includes platinum with platinum slurry is burnt altogether
Powder, lead-free glass powder, inorganic additive and organic bond,
The platinum powder is spherical platinum powder, and purity >=99.95%, its average grain diameter is 0.2~0.5 micron,
The lead-free glass powder is calcium borosilicate system glass；The composition and percetage by weight of the lead-free glass powder are calcium oxide 30
~50%, boric acid 10~25%, silica 20~40%, zinc oxide 5~10%, zirconium oxide 0.1~2%, glass dust each group
It is 100% to divide percentage by weight sum, and the percentage by weight of its dosage is：1%~10%；Glass dust average grain diameter≤5 μm,
Softening point is 700~750 DEG C；
The inorganic additive is the one or more in aluminum oxide, zirconium oxide, zinc oxide, cupric oxide, yttrium oxide；Its dosage
Percentage by weight is：3.2%~10%,
The organic bond is with the one or more that resin is in acrylic resin, ethyl cellulose, epoxy resin, its dosage
Percentage by weight be：1%~3%,
The organic bond with one kind that solvent is in terpinol, butyl carbitol, butyl carbitol acetate, its dosage
Percentage by weight is：15%~18%,
The organic bond used additives are dibutyl phthalate, butyl stearate, lecithin, one kind in Span or more
Kind, the percentage by weight of its dosage is：2%~4%.
2. the preparation method that a kind of tubular oxygen sensor described in claim 1 is starched with platinum is burnt altogether, it is characterised in that：Prepare unleaded glass
Glass powder：By the composition calcium oxide 30~50% of the lead-free glass powder, boric acid 10~25%, silica 20~40%, oxidation
Zinc 5~10%, zirconium oxide 0.1~2%, glass dust each component percentage by weight sum are 100%, by a certain percentage uniformly mixing
It is put into ceramic crucible, is founded in Muffle furnace, glass melting temperature:800~1300 DEG C, 30~90min of melting time；Water quenching, break
Broken, ball milling, excessively 400 eye mesh screens, drying can obtain the lead-free glass powder that particle diameter is not more than 5 μm；
Prepare organic bond：According to organic bond percentage by weight meter, 5%~12% resin is added 75%~85%
Organic solvent in, heat 80~90 DEG C of stirring and dissolving 90min；10%~20% auxiliary agent is added in above-mentioned solution, stirring
It is incubated 30min；Cooling, organic bond is in pale yellow transparent state；
Tubular oxygen sensor is prepared to be starched with burning platinum altogether：According to slurry weight percentages, by 1%~3% lead-free glass powder and
3.2%~10% inorganic additive adds 18%~25% organic bond, fully dispersed；60%~75% platinum is added afterwards
Powder, rolled 15 times through three-high mill, obtain tubular oxygen sensor and starched with burning platinum altogether,
According to slurry weight percentages, it is organic that 2% lead-free glass powder and 7% inorganic additive zirconium oxide are added 20%
Adhesive, it is fully dispersed；72% platinum powder is added afterwards, is rolled 15 times through three-high mill, obtains tubular oxygen sensor with burning platinum altogether
Slurry.
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| CN107056282B (en) * | 2016-12-22 | 2020-05-12 | 广东风华高新科技股份有限公司 | Yttrium-stabilized zirconia slurry, preparation method thereof and preparation method of yttrium-stabilized zirconia blank |
| CN109901261B (en) * | 2019-03-07 | 2020-11-03 | 杰讯光电(福建)有限公司 | Method for manufacturing metal Cu coating quartz optical fiber |
| CN110752050A (en) * | 2019-10-28 | 2020-02-04 | 中国兵器工业集团第二一四研究所苏州研发中心 | Formula and preparation method of weldable conductive platinum slurry for high-temperature co-fired ceramic |
| CN114397345A (en) * | 2022-01-24 | 2022-04-26 | 深圳市富济新材料科技有限公司 | Heating electrode for automobile exhaust sensor chip and preparation method and chip thereof |
| CN114464339B (en) * | 2022-02-22 | 2024-04-09 | 昆明贵研新材料科技有限公司 | Conductive gold paste, preparation method thereof and application of conductive gold paste in NTC (negative temperature coefficient) thermosensitive chip |
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| JP4466402B2 (en) * | 2005-02-17 | 2010-05-26 | 住友金属鉱山株式会社 | Thick film conductor composition |
| CN101168472A (en) * | 2006-10-24 | 2008-04-30 | 北京有色金属研究总院 | Lead-free platinum electrode slurry and manufacturing method thereof |
| CN101655474B (en) * | 2009-06-02 | 2013-10-30 | 中国原子能科学研究院 | Method for preparing and sintering platinum slurry for electrode of oxygen sensor |
| CN102109484B (en) * | 2009-12-29 | 2013-08-28 | 比亚迪股份有限公司 | Electrode slurry of oxygen sensor electrode and preparation method thereof |
| CN102074277A (en) * | 2010-11-26 | 2011-05-25 | 中国科学院宁波材料技术与工程研究所 | Electrode material and electrode paste of oxygen sensor as well as preparation method of electrode |
| CN102798652B (en) * | 2012-08-26 | 2014-07-30 | 无锡隆盛科技股份有限公司 | Nitrogen oxide sensor-used platinum-rhodium electrode paste and preparation method thereof |
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Address after: 650106 No. 988, science and technology road, Kunming hi tech Development Zone, Yunnan, China (Kunming Institute of Precious Metals) Patentee after: Yunnan Precious Metal New Materials Holding Group Co.,Ltd. Country or region after: China Address before: 650106 No. 988, science and technology road, Kunming hi tech Development Zone, Yunnan, China (Kunming Institute of Precious Metals) Patentee before: Sino-Platinum Metals Co.,Ltd. Country or region before: China |