CN103969286A - Method for measuring expansibility of catalytic converter seal gasket - Google Patents
Method for measuring expansibility of catalytic converter seal gasket Download PDFInfo
- Publication number
- CN103969286A CN103969286A CN201410150651.9A CN201410150651A CN103969286A CN 103969286 A CN103969286 A CN 103969286A CN 201410150651 A CN201410150651 A CN 201410150651A CN 103969286 A CN103969286 A CN 103969286A
- Authority
- CN
- China
- Prior art keywords
- sample
- thermal expansion
- analysis instrument
- temperature
- recorder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention discloses a method for measuring expansibility of catalytic converter seal gasket. The method comprises the following steps: (1) sampling; (2) preparing test samples; (3) placing the samples: the test samples are placed under the movable end of a quartz glass rod in a thermal expansion analyzer and pressure of 1345 g is provided above the quartz glass rod; (4) then switching on a heating switch of a heating device in the thermal expansion analyzer and heating at the heating speed of 15/min until the temperature reaches 750 DEG C; recording primary measuring data by a recorder in a thermal mechanical analyzer; when the temperature is reduced to the indoor temperature, heating continuously, controlling the temperature between 200 DEG C and 700 DEG C and conducting the circulation test for 50 times; after the circulation is over, the thermal expansion analyzer is automatically closed by the system and the samples are taken out after the temperature the device is reduced naturally; recording the data measured for 50 times by the recorder in the thermal expansion analyzer; (5) calculating thermal expansion performance parameters. The measuring method provided by the invention is simple, convenient and high in precision.
Description
Technical field
The present invention relates to the detection method of thermal expansivity, particularly the expansile measuring method of a kind of catalytic converter liner.
Background technology
Along with the enhancing of social environment consciousness, the improvement of people's pay attention to day by day to atmospheric pollution, the particularly control of vehicle emission pollution. along with the development of Chinese Urbanization construction and the increase of automobile pollution, vehicle exhaust has become the main source of urban atmospheric pollution, takes proper measure to reduce to greatest extent vehicle emission pollution and become the common recognition of various circles of society.
Catalytic conversion technique is effectively to control at present the Main Means that motor vehicle exhaust emission is polluted, and its effect is that the harmful gas in tail gas is transformed into the free of contamination gas of atmosphere after catalyzed conversion, and wherein catalyst system is the vitals of its whole process; Exhaust Gas Catalytic Converter for Automobiles is made up of a series of correlation techniques and complementary member, comprises three-way catalyst, honeycomb ceramic carrier, catalytic converter liner and metal shell; Catalytic converter liner is one of critical component of Exhaust Gas Catalytic Converter for Automobiles; it be mainly used to protect catalytic converter core--honeycomb ceramic carrier is not damaged; play the effect of immobilization carrier and damping; and there is good impermeability and heat-blocking action; its good hot expansibility has solved the significant difference that ceramic monolith and metal shell exist aspect thermal expansion; make ceramic monolith avoid the shock and vibration of road injustice, ensured the usability of Exhaust Gas Catalytic Converter for Automobiles.
Due to kinds of automobile and vehicle difference, each catalytic converter specification type is different, thereby causes honeycomb ceramic carrier also different from the gap of metal shell; Make catalytic converter liner reach the ideal effect of sealing, fastening, damping, just need the strict thermal expansivity of controlling liner, make it meet the effect strictly sealing after thermal expansion, make again its peak value bulging force be less than the maximum back pressure that ceramic monolith can bear, thereby avoid the squeezed broken thrashing pattern of ceramic monolith; Because catalytic converter liner does not have national standard and industry standard, the detection of catalytic converter liner is not had to legal instrument and detection method yet, respectively encapsulate enterprise and how to operate according to experience, in using, there is greater risk in historical facts or anecdotes border.
Summary of the invention
The technical problem to be solved in the present invention is to provide one can be accurately, Quick Measuring measures the expansile measuring method of catalytic converter liner.
For achieving the above object, technical scheme of the present invention is as follows:
The expansile measuring method of a kind of catalytic converter liner; Described measuring method comprises the steps:
(1) sampling, choosing grammes per square metre is 3662-5200g/m2, swelling property liner 100 × 100mm a slice that thickness is 5.4-7.65mm;
(2) make sample, swelling property liner is die-cut into the test sample that diameter is 11mm with die cutting die, and carries out mark;
(3) put sample, test sample is placed on to the below of quartz glass bar movable end in thermodilatometric analysis instrument, and the pressure of 1345g is provided above quartz glass bar;
(4) sample data detects, after sample has been put, the zero-bit of calibration thermodilatometric analysis instrument, then open the heater switch of thermodilatometric analysis instrument inner heating device, heat up with 15/min heating rate, be elevated to till 750 DEG C, the recorder in thermomechanical analyzer is recorded the data of measuring first with thermal expansion curve synoptic diagram form; When temperature is reduced to after room temperature, continue heating, its temperature is controlled between 200 DEG C to 700 DEG C, so complete loop test 50 times; Circulation finishes rear system and automatically closes thermodilatometric analysis instrument, makes equipment complete the rear sample that takes out of nature cooling; Recorder in thermodilatometric analysis instrument is recorded the data of 50 measurements with thermal expansion curve synoptic diagram form;
(5) computational data, utilizes computer software, derives the thermal expansion schematic diagram in thermodilatometric analysis instrument recorder, calculates hot expansibility parameter.
In one embodiment of the invention, the diameter of described quartz glass bar is 7mm.
By technique scheme, the invention has the beneficial effects as follows:
Measuring method of the present invention can quantize catalytic converter liner expansion character and expansion curve at high temperature, calculate the coefficient of thermal expansion of catalytic converter liner in each stage, thereby effectively instruct the type selecting of liner, accurately instruct the enforcement of packaging technology.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the expansion schematic diagram that the present invention is expanded in test process.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below further set forth the present invention.
The invention discloses the expansile measuring method of a kind of catalytic converter liner, this measuring method is tested with thermomechanical analyzer, and thermomechanical analyzer is existing thermomechanical analyzer, the structure of thermomechanical analyzer is not construed as limiting herein; Its thermomechanical analyzer is a registering instrument that can record inflated insert expansion character, and experimentation is to allow product in the situation that of certain pressure, is elevated to 750 DEG C from room temperature, and then cools in room temperature situation, so repeatedly experiment.
The present invention relates to thermodilatometric analysis instrument, the principle manufacturing and designing is to introduce from the thermal expansivity of stupalith, innovate according to the special character of inflated insert product, the quartzose glass bar that is 7mm with diameter when test is as a movable end, the diameter of test sample is 11mm, the movable end of quartz glass bar is pressed on 11mm sample, and continues to provide the pressure of 1345g according to himself gravity; Heating element heats up with 15 degree/min heating rate, tests according to the temperature curve of setting, and maximum temperature is arranged on 750 DEG C (part is at 850 DEG C, and this patent is to be heated to 750 DEG C as example) conventionally; The precision of selected displacement transducer is 1 micron, records experimental temperature and expansion percentage curves; Select quartz pushrod to be that as the reason of movable end quartz material has minimum expansion coefficient, therefore can reduce the error of system to inflated insert test result.
This patent can carry out single or multiple loop test according to actual requirement, can obtain serial detailed data by thermodilatometric analysis instrument, and data can be for quality control (specific specification) and research and development.
Conventionally the key point relating in test is defined as follows:
Initial thickness under T0=room temperature
T1=minimum thickness
The thickness of T2=temperature at 750 DEG C
Thickness when DEG C circulation of T3=process room temperature to 750 returns room temperature
T50=entered 50 thickness (first circulating-heating to 750 DEG C, 2-50 circulation is 200 DEG C to 700 DEG C) while circulating in 700 DEG C
Face in Jie's expansion temperature=heating process temperature when thickness reaches T0.
The temperature when slope of initial expansion temperature=expansion curve becomes positive number.
The calculating ratio and the measurement data that are usually directed to are listed below:
T1/T0
T2/T0
T50/T0
Temperature when thickness reaches T0 in critical expansion temperature=expansion test process
Expansion schematic diagram is as (Fig. 1)
Measuring method of the present invention is as follows:
Embodiment 1
(1) sampling, choosing grammes per square metre is 3662g/m2, swelling property liner 100 × 100mm a slice that thickness is 5.4mm;
(2) make sample, swelling property liner is die-cut into the test sample that diameter is 11mm with die cutting die, and carry out and be labeled as 1# sample;
(3) put sample, 1# sample is placed on to the below of quartz glass bar movable end in thermodilatometric analysis instrument, and the pressure of 1345g is provided above quartz glass bar;
(4) sample data detects, after sample has been put, the zero-bit of calibration thermodilatometric analysis instrument, then open the heater switch of thermodilatometric analysis instrument inner heating device, heat up with 15/min heating rate, be elevated to till 750 DEG C, the recorder in thermomechanical analyzer is recorded the data of measuring first with thermal expansion curve synoptic diagram form; When temperature is reduced to after room temperature, continue heating, its temperature is controlled between 200 DEG C to 700 DEG C, so complete loop test 50 times; Circulation finishes rear system and automatically closes thermodilatometric analysis instrument, makes equipment complete the rear sample that takes out of nature cooling; Recorder in thermodilatometric analysis instrument is recorded the data of 50 measurements with thermal expansion curve synoptic diagram form;
(5) computational data, utilizes computer software, derives the thermal expansion schematic diagram in thermodilatometric analysis instrument recorder, calculates hot expansibility parameter.
Embodiment 2
(1) sampling, choosing grammes per square metre is 4070g/m
2, swelling property liner 100 × 100mm a slice that thickness is 6.02mm;
(2) make sample, swelling property liner is die-cut into the test sample that diameter is 11mm with die cutting die, and carry out and be labeled as 2# sample;
(3) put sample, 2# sample is placed on to the below of quartz glass bar movable end in thermodilatometric analysis instrument, and the pressure of 1345g is provided above quartz glass bar;
(4) sample data detects, after sample has been put, the zero-bit of calibration thermodilatometric analysis instrument, then open the heater switch of thermodilatometric analysis instrument inner heating device, heat up with 15/min heating rate, be elevated to till 750 DEG C, the recorder in thermomechanical analyzer is recorded the data of measuring first with thermal expansion curve synoptic diagram form; When temperature is reduced to after room temperature, continue heating, its temperature is controlled between 200 DEG C to 700 DEG C, so complete loop test 50 times; Circulation finishes rear system and automatically closes thermodilatometric analysis instrument, makes equipment complete the rear sample that takes out of nature cooling; Recorder in thermodilatometric analysis instrument is recorded the data of 50 measurements with thermal expansion curve synoptic diagram form;
(5) computational data, utilizes computer software, derives the thermal expansion schematic diagram in thermodilatometric analysis instrument recorder, calculates hot expansibility parameter.
Embodiment 3
(1) sampling, choosing grammes per square metre is 5200g/m
2, swelling property liner 100 × 100mm a slice that thickness is 7.65mm;
(2) make sample, swelling property liner is die-cut into the test sample that diameter is 11mm with die cutting die, and carry out and be labeled as 3# sample;
(3) put sample, 3# sample is placed on to the below of quartz glass bar movable end in thermodilatometric analysis instrument, and the pressure of 1345g is provided above quartz glass bar;
(4) sample data detects, after sample has been put, the zero-bit of calibration thermodilatometric analysis instrument, then open the heater switch of thermodilatometric analysis instrument inner heating device, heat up with 15/min heating rate, be elevated to till 750 DEG C, the recorder in thermomechanical analyzer is recorded the data of measuring first with thermal expansion curve synoptic diagram form; When temperature is reduced to after room temperature, continue heating, its temperature is controlled between 200 DEG C to 700 DEG C, so complete loop test 50 times; Circulation finishes rear system and automatically closes thermodilatometric analysis instrument, makes equipment complete the rear sample that takes out of nature cooling; Recorder in thermodilatometric analysis instrument is recorded the data of 50 measurements with thermal expansion curve synoptic diagram form;
(5) computational data, utilizes computer software, derives the thermal expansion schematic diagram in thermodilatometric analysis instrument recorder, calculates hot expansibility parameter.
The test data of embodiment 1,2,3 is as follows:
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (2)
1. the expansile measuring method of catalytic converter liner; It is characterized in that: described measuring method comprises the steps:
(1) sampling, choosing grammes per square metre is 3662-5200g/m2, swelling property liner 100 × 100mm a slice that thickness is 5.4-7.65mm;
(2) make sample, swelling property liner is die-cut into the test sample that diameter is 11mm with die cutting die, and carries out mark;
(3) put sample, test sample is placed on to the below of quartz glass bar movable end in thermodilatometric analysis instrument, and the pressure of 1345g is provided above quartz glass bar;
(4) sample data detects, after sample has been put, the zero-bit of calibration thermodilatometric analysis instrument, then open the heater switch of thermodilatometric analysis instrument inner heating device, heat up with 15/min heating rate, be elevated to till 750 DEG C, the recorder in thermomechanical analyzer is recorded the data of measuring first with thermal expansion curve synoptic diagram form; When temperature is reduced to after room temperature, continue heating, its temperature is controlled between 200 DEG C to 700 DEG C, so complete loop test 50 times; Circulation finishes rear system and automatically closes thermodilatometric analysis instrument, makes equipment complete the rear sample that takes out of nature cooling; Recorder in thermodilatometric analysis instrument is recorded the data of 50 measurements with thermal expansion curve synoptic diagram form;
(5) computational data, utilizes computer software, derives the thermal expansion schematic diagram in thermodilatometric analysis instrument recorder, calculates hot expansibility parameter.
2. the expansile measuring method of a kind of catalytic converter liner according to claim 1, is characterized in that: the diameter of described quartz glass bar is 7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410150651.9A CN103969286A (en) | 2013-11-21 | 2014-04-15 | Method for measuring expansibility of catalytic converter seal gasket |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310594958.3 | 2013-11-21 | ||
| CN201310594958 | 2013-11-21 | ||
| CN201410150651.9A CN103969286A (en) | 2013-11-21 | 2014-04-15 | Method for measuring expansibility of catalytic converter seal gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103969286A true CN103969286A (en) | 2014-08-06 |
Family
ID=51239045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410150651.9A Pending CN103969286A (en) | 2013-11-21 | 2014-04-15 | Method for measuring expansibility of catalytic converter seal gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103969286A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107907559A (en) * | 2017-11-13 | 2018-04-13 | 无锡威孚力达催化净化器有限责任公司 | A kind of test device of pad for auto-exhaust catalyst |
| CN111366606A (en) * | 2020-03-27 | 2020-07-03 | 上海交通大学 | Heat treatment deformation prediction method based on expansion curve |
| CN112666205A (en) * | 2020-12-30 | 2021-04-16 | 山东东珩胶体材料有限公司 | Three way catalyst converter sealing gasket testing arrangement |
| CN113791112A (en) * | 2021-09-23 | 2021-12-14 | 北京科技大学 | Method and system for testing linear expansion coefficient of wooden cultural relic by using static thermomechanical analyzer |
| CN114460128A (en) * | 2022-01-26 | 2022-05-10 | 鞍山中特新材料科技有限公司 | Method for rapidly testing thermal expansion coefficient of needle coke |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005098863A (en) * | 2003-09-25 | 2005-04-14 | National Institute Of Advanced Industrial & Technology | Apparatus for measuring coefficient of thermal expansion of solid |
| JP2010151557A (en) * | 2008-12-25 | 2010-07-08 | Central Glass Co Ltd | Method of measuring thermal expansion coefficient |
| CN202433325U (en) * | 2011-12-16 | 2012-09-12 | 上海伊索热能技术有限公司 | Thermal expansion analysis meter |
| CN103257152A (en) * | 2012-02-21 | 2013-08-21 | 中国科学院金属研究所 | Small-size solid sample thermal expansion measuring device |
-
2014
- 2014-04-15 CN CN201410150651.9A patent/CN103969286A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005098863A (en) * | 2003-09-25 | 2005-04-14 | National Institute Of Advanced Industrial & Technology | Apparatus for measuring coefficient of thermal expansion of solid |
| JP2010151557A (en) * | 2008-12-25 | 2010-07-08 | Central Glass Co Ltd | Method of measuring thermal expansion coefficient |
| CN202433325U (en) * | 2011-12-16 | 2012-09-12 | 上海伊索热能技术有限公司 | Thermal expansion analysis meter |
| CN103257152A (en) * | 2012-02-21 | 2013-08-21 | 中国科学院金属研究所 | Small-size solid sample thermal expansion measuring device |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107907559A (en) * | 2017-11-13 | 2018-04-13 | 无锡威孚力达催化净化器有限责任公司 | A kind of test device of pad for auto-exhaust catalyst |
| CN107907559B (en) * | 2017-11-13 | 2020-10-27 | 无锡威孚力达催化净化器有限责任公司 | Testing device for gasket of automobile exhaust catalyst |
| CN111366606A (en) * | 2020-03-27 | 2020-07-03 | 上海交通大学 | Heat treatment deformation prediction method based on expansion curve |
| CN111366606B (en) * | 2020-03-27 | 2022-06-24 | 上海交通大学 | Heat treatment deformation prediction method based on expansion curve |
| CN112666205A (en) * | 2020-12-30 | 2021-04-16 | 山东东珩胶体材料有限公司 | Three way catalyst converter sealing gasket testing arrangement |
| CN112666205B (en) * | 2020-12-30 | 2022-09-16 | 山东东珩国纤新材料有限公司 | Three way catalyst converter sealing gasket testing arrangement |
| CN113791112A (en) * | 2021-09-23 | 2021-12-14 | 北京科技大学 | Method and system for testing linear expansion coefficient of wooden cultural relic by using static thermomechanical analyzer |
| CN113791112B (en) * | 2021-09-23 | 2022-04-15 | 北京科技大学 | Method and system for testing linear expansion coefficient of wooden cultural relic by using static thermomechanical analyzer |
| CN114460128A (en) * | 2022-01-26 | 2022-05-10 | 鞍山中特新材料科技有限公司 | Method for rapidly testing thermal expansion coefficient of needle coke |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103969286A (en) | Method for measuring expansibility of catalytic converter seal gasket | |
| JP6448488B2 (en) | Thermal shock resistance test method and thermal shock resistance test apparatus | |
| JP4855004B2 (en) | Thermal property test evaluation method and test apparatus for fabric fiber material | |
| JP2014143927A5 (en) | ||
| CN106248725A (en) | A kind of porous media Equivalent Thermal Conductivities measuring method | |
| CN106339521B (en) | Solder joint cavity blemish detection method based on laser pulse excitation emulation | |
| CN103149238B (en) | Simple measurement device for heat conductivity coefficient of porous ceramics | |
| CN101308045B (en) | Rubber tyre simulated temperature measurement method and apparatus | |
| CN107907559B (en) | Testing device for gasket of automobile exhaust catalyst | |
| CN112858381B (en) | Heat insulation performance test device and test method for heat insulation material for high-speed aircraft engine | |
| JP4481152B2 (en) | Method and apparatus for testing thermal properties of temperature control materials | |
| CN203849193U (en) | Indoor rock sample heat conduction coefficient testing device | |
| JP2016142735A (en) | Three-dimensional thermal diffusivity | |
| CN105021650A (en) | Device for measuring heat conduction coefficient by means of guarded hot plate method | |
| CN203148870U (en) | Simple measurement device of heat conductivity coefficient of porous ceramic | |
| CN106841288B (en) | Comprehensive analysis method based on a variety of thermally protective materials of flight | |
| CN103969281A (en) | Device for rapidly screening self-heating danger of chemicals | |
| CN209231247U (en) | A kind of molding sand high-temperature behavior test equipment | |
| CN207318394U (en) | A kind of Measured Results of Thermal Conductivity experimental system | |
| CN111256790A (en) | High-temperature flow testing method and device for flow metering device or atmospheric sampling equipment | |
| CN206311227U (en) | A kind of stripline resonator tester temperature variation testing fixture | |
| CN202974908U (en) | Coal dust explosiveness identifier heating and temperature-measuring device | |
| CN203869508U (en) | Device for fixing temperature measurement instrument for sintering furnace | |
| Kamiuto | Combined conduction and nongray radiation heat transfer in carbon dioxide | |
| Anuchin et al. | Procedure for studying thermophysical properties of ceramic materials at high temperature |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: Huaxin Town Huayi village in Qingpu District of Shanghai city in 201708 Applicant after: Shanghai Aesop thermal energy technology Limited by Share Ltd Address before: Huaxin Town Huayi village in Qingpu District of Shanghai city in 201708 Applicant before: Shanghai Yeso Heat Energy Technology Co., Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: SHANGHAI YESO HEAT ENERGY TECHNOLOGY CO., LTD. TO: SHANGHAI YESO INSULATING PRODUCTS CORPORATION |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140806 |