CN105606241A - Filling method for armored thermocouple connection probe - Google Patents
Filling method for armored thermocouple connection probe Download PDFInfo
- Publication number
- CN105606241A CN105606241A CN201510954416.1A CN201510954416A CN105606241A CN 105606241 A CN105606241 A CN 105606241A CN 201510954416 A CN201510954416 A CN 201510954416A CN 105606241 A CN105606241 A CN 105606241A
- Authority
- CN
- China
- Prior art keywords
- powder
- magnesia powder
- probe
- cover plate
- filling
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Ceramic Products (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention reveals a filling method for an armored thermocouple connection probe, and the armored thermocouple connection probe comprises an opening cavity and a cover plate. The interior of the opening cavity is provided with a plurality of resistor wires and a plurality of thermocouple wires. The filling method comprises the following steps: enabling magnesia powder and ethyl alcohol to be mixed to form a filling agent; pouring the filling agent into the opening cavity, and enabling the filling agent to be placed quietly till the ethyl alcohol volatilizes and magnesia powder congeals; carrying out powder pressing operation through a power pressing machine, and enabling the magnesia powder to be pressed solidly; continuously adding magnesia powder to the opening cavity; carrying out repeated filling of powder and pressing till the pressure of powder pressing reaches 6.7MPa; and finally enabling the cover plate and the opening cavity to be welded together. The method employs magnesia powder as the filling agent. Compared with a conventional cement filling method, the method achieves good connection firmness with the inner cavity. The internal pressure can maintain the stable structure of the connection probe, prevents a shell from being broken, is stable and reliable in product quality, and greatly reduces the fault rate and rejection rate of the connection probe.
Description
Technical field
The present invention relates to a kind of fill method, relate in particular to the fill method that armoured thermocouple connects probe.
Background technology
Aero-engine exhaust section environment is severe, and its exhaust temperature signal need gather by thermocouple temperature sensor. Traditional measurement system adopts the some structures that list props up thermocouple and collector ring: at one week uniform some thermocouple collecting temperature signal of engine, collector ring is looped around engine thermometric cross-sectional circumference, by output in parallel thermocouple signal. Due to condition restriction such as traditional measurement system architecture are disperseed, and vibration resistance is poor, reliability is low, and service life is short, structure is heavy and increased engine overall weight and collector ring cable temperature resistant capability is limited. Present stage adopts armoured thermocouple in groups to gather exhaust temperature of aircraft engine signal more.
Armoured thermocouple is generally connected to form by multiple probes in groups, for ensureing each probe to output resistance uniformity, usually adopts the way of connection trim resistance consistent to realize resistance. Therefore at probe connecting portion, often there are multiple solder joints, add that thermocouple wire, resistance wire are interlaced. Any one solder joint or thermo wires rupture or take shell and all can cause sensor failure, therefore for guaranteeing armoured thermocouple thermo wires and resistance wire stable connection, reliable in probe, must ensure that it is relatively fixing at probe interior location, must adopt suitable filler to be filled in probe inside thermocouple wire and resistance wire are fixed. Once adopted the mode of cement embedding to be fixed inner thermo wires and resistance wire early stage, but cannot meet instructions for use owing to be combined not firm and embedding pressure after cement solidification with outer casing inner wall, easily causes the cement shelling internal structure inefficacy that finally causes popping one's head in. Therefore production cost and scrappage are relatively high.
Summary of the invention
The object of the invention is to solve above-mentioned technical problem, the fill method that armoured thermocouple connects probe is proposed, described armoured thermocouple connects probe and comprises a uncovered cavity and a cover plate in described uncovered cavity, having plural resistance wire and plural thermo wires, and fill method comprises the steps:
A, packing material blend step: magnesia powder is mixed to formation filler with alcohol,
B, filling step: filler is poured in uncovered cavity,
C, standing congealing step: filler leaves standstill to alcohol volatilization, and magnesia powder condenses,
D, press-powder step: carry out press-powder operation by pressure mill, make the preliminary compacting of magnesia powder,
E, filling magnesia powder step: in uncovered cavity, continue to add magnesia powder,
F, circulation step, repeating step d and step e reach 6.7MPa to press-powder pressure,
G, cover plate welding step, by welded to cover plate and uncovered cavity.
Further, in described step a, the volume ratio of magnesia powder and alcohol is greater than 2.
Further, described step c is static 12 hours of normal temperature.
Further, in described steps d, pressure mill adopts Stroke Control press-powder.
Further, in described step g, adopt pressure control to make cover plate remain on 6.7MPa to the pressure of magnesia powder, then carry out the welding of cover plate and uncovered cavity.
Beneficial effect of the present invention:
Adopt magnesia powder as filler, compare traditional cement and fill, it has is combined with inner chamber firmly, internal pressure can keep connecting the Stability Analysis of Structures of probe, stop the situation generation that shelling is broken, constant product quality, reliable, greatly reduces the fault rate and the percent defective that connect probe.
Brief description of the drawings
Fig. 1 is the flow chart that armoured thermocouple of the present invention connects the fill method of probe.
Detailed description of the invention
The invention provides the fill method that armoured thermocouple connects probe, for connecting the fixing of the interior thermocouple wire of probe and resistance wire, solve cement embedding shelling and structural failure problem. Below in conjunction with accompanying drawing, technical solution of the present invention is described in detail, so that it is easier to understand and grasp
Armoured thermocouple connects the fill method of probe, armoured thermocouple is connected to probe to be described in detail, it comprises a uncovered cavity and a cover plate, in uncovered cavity, there is plural resistance wire and plural thermo wires, certainly resistance wire and thermo wires pass through argon arc welding according to group, this belongs to prior art, therefore do not repeat them here.
Fill method of the present invention, as shown in the flow chart of Fig. 1, comprises the steps:
First be packing material blend step, magnesia powder mixed to formation filler with alcohol, preferred, the volume ratio of magnesia powder and alcohol is greater than 2, can by resistance wire and thermo wires, all fillings are therein after magnesia powder is condensed; Then be filling step, filler is poured in uncovered cavity, be it should be noted that, resistance wire and thermo wires are now relatively-stationary, filler is not poured into can cause interference to the position of inner resistance wire and thermo wires, and filling exceedes the uncovered of uncovered cavity with the agent face of filler and is as the criterion; Then be to leave standstill congealing step, the probe after filling static 12 hours at normal temperatures, the volatilization of to be filled dose of alcohol, magnesia powder condense complete standing; Carry out press-powder step again, carry out press-powder operation by pressure mill, make the preliminary compacting of magnesia powder, more excellent, pressure mill adopts Stroke Control press-powder, after pressure mill single press-powder, measures pressure, ensures and is no more than 6.7MPa; Pressure does not exceed standard and fills magnesia powder step, in uncovered cavity, continues to add magnesia powder; If pressure does not also reach standard, carry out circulation step, repeat press-powder step and fill magnesia powder step to reach 6.7MPa to press-powder pressure, this pressure can ensure that magnesia powder effectively fixes thermo wires and resistance wire, can not cause again that thermo wires is impaired, probe distortion, structural failure; 3 ~ 4 ability that generally all need to circulate meet standard; Finally cover plate welding step, by welded to cover plate and uncovered cavity. Optimize, adopt pressure control to make cover plate remain on 6.7MPa to the pressure of magnesia powder, then carry out the welding of cover plate and uncovered cavity, so can make the magnesia powder moment keep certain pressure, magnesia powder can effectively be fixed thermo wires and resistance wire.
Above technical scheme of the present invention is carried out to abundant description; it should be noted that; the specific embodiment of the present invention is not subject to the restriction of foregoing description; those of ordinary skill in the art adopts equivalents or equivalent transformation according to Spirit Essence of the present invention at the aspect such as structure, method or function and all technical schemes of forming, within all dropping on protection scope of the present invention.
Claims (5)
1. armoured thermocouple connects the fill method of probe, and described armoured thermocouple connects probe and comprises a uncovered cavity and a cover plate in described uncovered cavity, having plural resistance wire and plural thermo wires, it is characterized in that described fill method comprises the steps:
A, packing material blend step: magnesia powder is mixed to formation filler with alcohol,
B, filling step: filler is poured in uncovered cavity,
C, standing congealing step: filler leaves standstill to alcohol volatilization, and magnesia powder condenses,
D, press-powder step: carry out press-powder operation by pressure mill, make the preliminary compacting of magnesia powder,
E, filling magnesia powder step: in uncovered cavity, continue to add magnesia powder,
F, circulation step, repeating step d and step e reach 6.7MPa to press-powder pressure,
G, cover plate welding step, by welded to cover plate and uncovered cavity.
2. armoured thermocouple according to claim 1 connects the fill method of probe, it is characterized in that, in described step a, the volume ratio of magnesia powder and alcohol is greater than 2.
3. armoured thermocouple according to claim 1 connects the fill method of probe, it is characterized in that, described step c is static 12 hours of normal temperature.
4. armoured thermocouple according to claim 1 connects the fill method of probe, it is characterized in that, in described steps d, pressure mill adopts Stroke Control press-powder.
5. armoured thermocouple according to claim 1 connects the fill method of probe, it is characterized in that, adopts pressure control to make cover plate remain on 6.7MPa to the pressure of magnesia powder, then carry out the welding of cover plate and uncovered cavity in described step g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510954416.1A CN105606241B (en) | 2015-12-20 | 2015-12-20 | The fill method of armoured thermocouple connection probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510954416.1A CN105606241B (en) | 2015-12-20 | 2015-12-20 | The fill method of armoured thermocouple connection probe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105606241A true CN105606241A (en) | 2016-05-25 |
| CN105606241B CN105606241B (en) | 2019-01-01 |
Family
ID=55986360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510954416.1A Active CN105606241B (en) | 2015-12-20 | 2015-12-20 | The fill method of armoured thermocouple connection probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105606241B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679836A (en) * | 2016-12-08 | 2017-05-17 | 苏州长风航空电子有限公司 | Glass sintering method of assembly type thermocouple |
| CN108181014A (en) * | 2017-12-13 | 2018-06-19 | 苏州长风航空电子有限公司 | A kind of output terminal combined labyrinth and carbon gland method of aviation thermocouple temperature sensor |
| CN115027070A (en) * | 2022-06-07 | 2022-09-09 | 北京金诺美科技股份有限公司 | Auxiliary device for manufacturing temperature calibration probe and manufacturing process |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5533689A (en) * | 1979-06-27 | 1980-03-08 | Fujikura Ltd | Formation method of thermal contact end portion of thermocouple wire |
| JPH0829266A (en) * | 1994-07-14 | 1996-02-02 | Chino Corp | Manufacture of thermocouple |
| CN2783690Y (en) * | 2005-03-04 | 2006-05-24 | 孙文忠 | Amoured thermocable with thermocouple |
| CN2798064Y (en) * | 2005-06-10 | 2006-07-19 | 裘锡云 | Platinum-rhodium armoured thermocouple |
| CN201945385U (en) * | 2010-12-20 | 2011-08-24 | 安徽鑫国仪表有限公司 | Sensor with thermocouple and thermal resistance being armored integrally |
| CN203705062U (en) * | 2014-01-23 | 2014-07-09 | 宁波奥凯安全科技有限公司 | Thermocouple for gas appliances |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5533689B2 (en) * | 2011-01-18 | 2014-06-25 | 株式会社デンソー | Overcurrent protection device |
-
2015
- 2015-12-20 CN CN201510954416.1A patent/CN105606241B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5533689A (en) * | 1979-06-27 | 1980-03-08 | Fujikura Ltd | Formation method of thermal contact end portion of thermocouple wire |
| JPH0829266A (en) * | 1994-07-14 | 1996-02-02 | Chino Corp | Manufacture of thermocouple |
| CN2783690Y (en) * | 2005-03-04 | 2006-05-24 | 孙文忠 | Amoured thermocable with thermocouple |
| CN2798064Y (en) * | 2005-06-10 | 2006-07-19 | 裘锡云 | Platinum-rhodium armoured thermocouple |
| CN201945385U (en) * | 2010-12-20 | 2011-08-24 | 安徽鑫国仪表有限公司 | Sensor with thermocouple and thermal resistance being armored integrally |
| CN203705062U (en) * | 2014-01-23 | 2014-07-09 | 宁波奥凯安全科技有限公司 | Thermocouple for gas appliances |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679836A (en) * | 2016-12-08 | 2017-05-17 | 苏州长风航空电子有限公司 | Glass sintering method of assembly type thermocouple |
| CN108181014A (en) * | 2017-12-13 | 2018-06-19 | 苏州长风航空电子有限公司 | A kind of output terminal combined labyrinth and carbon gland method of aviation thermocouple temperature sensor |
| CN115027070A (en) * | 2022-06-07 | 2022-09-09 | 北京金诺美科技股份有限公司 | Auxiliary device for manufacturing temperature calibration probe and manufacturing process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105606241B (en) | 2019-01-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105606241A (en) | Filling method for armored thermocouple connection probe | |
| JP6778537B2 (en) | Piezoelectric pressure sensor and its manufacturing method | |
| CN104682156B (en) | A kind of pouring method of high density electrical connector | |
| JP6778538B2 (en) | Piezoelectric pressure sensor | |
| CN106679835B (en) | A kind of armored thermocouple sensor | |
| CN109561530B (en) | Manufacturing method of electric heating tube special for critical heat flux density test | |
| CN204188304U (en) | With the high temperature heat-resistant resistance of protective cradle | |
| US9500120B2 (en) | Integration ring | |
| CN103090988A (en) | Sheathed thermocouple junction box and sealing method thereof | |
| CN203675347U (en) | Electric heater | |
| US20140138373A1 (en) | Ceramic heater-type glow plug | |
| CN205845560U (en) | Fireproof cable | |
| CN205333208U (en) | A high low temperature connective bar for automobile engine temperature sensor | |
| JP2011115001A (en) | Sheath cable connecting structure | |
| CN109264663B (en) | High-temperature pressure sensor rear end packaging structure and packaging method thereof | |
| CN104591765A (en) | Expandable material and preparation method thereof | |
| JP6888561B2 (en) | Temperature sensor | |
| CN105913938A (en) | High-temperature resistant steel pipe thermocouple cable for oil well and manufacturing method | |
| CN103968722B (en) | A kind of explosive valve igniter | |
| CN201274280Y (en) | Electrode encapsulation construction for air discharging lamp | |
| DK3124945T3 (en) | PIEZOELECTRIC PRESSURE SENSOR | |
| CN110445088A (en) | Cable intermediate joint protective shell | |
| CN104540253A (en) | Dual-core fireproof mineral insulated heating cable circuit structure and manufacturing method thereof | |
| CN205692606U (en) | A kind of oil well is with high temperature resistant steel pipe thermocouple cable | |
| CN104332190A (en) | Mineral insulating assembly, preparation method and safety device having mineral insulating assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |