CN104298275A - Adhesive heating and temperature control device used in accelerometer assembling process - Google Patents
Adhesive heating and temperature control device used in accelerometer assembling process Download PDFInfo
- Publication number
- CN104298275A CN104298275A CN201410494716.1A CN201410494716A CN104298275A CN 104298275 A CN104298275 A CN 104298275A CN 201410494716 A CN201410494716 A CN 201410494716A CN 104298275 A CN104298275 A CN 104298275A
- Authority
- CN
- China
- Prior art keywords
- heating
- control device
- tackifier
- assembling process
- central shaft
- 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
Landscapes
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention provides an adhesive heating and temperature control device used in the accelerometer assembling process. The adhesive heating and temperature control device comprises a heat preservation mold, a heating device arranged in the heat preservation mold and used for evenly heating adhesive between a meter shell and a meter core in the accelerometer assembling process, and a control device connected with the heating device and used for controlling heating temperature and heating time in the heating process. Due to the fact that the adhesive between the meter shell and the meter core is evenly heated in the accelerometer assembling process, the adhesive of a single accelerometer is evenly heated in the solidification process, and the service life of the accelerometer is prolonged; heat is preserved through the heat preservation mold, the heating temperature and the heating time can be controlled through the control device in the heating process, the heating temperature and the heating time for solidification of the adhesive on meter heads of the accelerometers of the same batch are the same, and the accelerometers of the same batch are prevented from being different.
Description
Technical field
The present invention relates to technical field of temperature control, particularly relate to tackifier heating temperature control device in a kind of accelerometer assembling process.
Background technology
Quartz flexible accelerometer gauge outfit is assembled by watch core and watchcase, and watch core is coated on by annular that the tackifier of watchcase inwall is unsettled to be fixed in the cavity of watchcase.Solidification annular is coated in the process of tackifier between watch core and watchcase, and desirable state is, the tackifier of single accelerometer gauge outfit annular coating is heated evenly, with batch accelerometer gauge outfit adhesive solidification heating temperature and heated time identical.But oven interior Temperature Distribution in actual production process is also uneven, in the process that especially multiple accelerometer is heated by same baking oven, the temperature gap between different accelerometer gauge outfit even can arrive several tens.This temperature contrast directly affects the solidification rate being coated on tackifier between watch core and watchcase, thus causes the adhesive solidification degree with the bonding watch core of batch gauge outfit and watchcase there are differences; Even with regard to single gauge outfit, being heated in adhesive solidification process unevenly will cause the adhesive stress skewness between accelerometer watch core and housing, cause acceleration analysis error; As time goes on, bonding site unbalanced stress can accelerate adhesive failure, reduces accelerometer serviceable life.
Summary of the invention
Provide hereinafter about brief overview of the present invention, to provide about the basic comprehension in some of the present invention.Should be appreciated that this general introduction is not summarize about exhaustive of the present invention.It is not that intention determines key of the present invention or pith, and nor is it intended to limit the scope of the present invention.Its object is only provide some concept in simplified form, in this, as the preorder in greater detail discussed after a while.
For solving the problem, the present invention proposes tackifier heating temperature control device in a kind of accelerometer assembling process.
Tackifier heating temperature control device in a kind of accelerometer assembling process, comprising:
Heat insulation mould;
Be arranged at the heating arrangement in described heat insulation mould, for carrying out homogeneous heating to the tackifier in accelerometer assembling process between watchcase and watch core;
The control device be connected with described heating arrangement, for controlling heating-up temperature in heating process and heat time.
Tackifier heating temperature control device in accelerometer assembling process provided by the invention, by heating arrangement, homogeneous heating is carried out to the tackifier in accelerometer assembling process between watchcase and watch core, make to be heated evenly in single accelerometer adhesive solidification process, improve the serviceable life of accelerometer; And be incubated by heat insulation mould, control heating-up temperature and heat time by control device in heating process, make with batch accelerometer gauge outfit adhesive solidification heating temperature and heated time identical, avoid producing difference with between batch accelerometer.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of a kind of embodiment of tackifier heating temperature control device in the accelerometer assembling process that Fig. 1 provides for the present embodiment.
Fig. 2 is the structural representation of a kind of embodiment of heating arrangement in tackifier heating temperature control device in accelerometer assembling process provided by the invention.
Fig. 3 is the vertical view of a kind of embodiment of heating arrangement in tackifier heating temperature control device in accelerometer assembling process provided by the invention.
Fig. 4 is the structural representation of a kind of embodiment of heat insulation mould in tackifier heating temperature control device in accelerometer assembling process provided by the invention.
Embodiment
With reference to the accompanying drawings embodiments of the invention are described.The element described in an accompanying drawing of the present invention or a kind of embodiment and feature can combine with the element shown in one or more other accompanying drawings or embodiment and feature.It should be noted that to know object, accompanying drawing and eliminate expression and the description of unrelated to the invention, parts known to persons of ordinary skill in the art and process in illustrating.
With reference to figure 1, the present embodiment provides tackifier heating temperature control device in a kind of accelerometer assembling process, comprising:
Heat insulation mould 1;
Be arranged at the heating arrangement 2 in heat insulation mould 1, for carrying out homogeneous heating to the tackifier 5 in accelerometer assembling process between watchcase 3 and watch core 4;
The control device 6 be connected with heating arrangement 2, for controlling heating-up temperature in heating process and heat time.
Tackifier heating temperature control device in the accelerometer assembling process that the present embodiment provides, homogeneous heating is carried out by the tackifier 5 in heating arrangement 2 pairs of accelerometer assembling processes between watchcase 3 and watch core 4, make to be heated evenly in single accelerometer adhesive solidification process, improve the serviceable life of accelerometer; And be incubated by heat insulation mould 1, heating-up temperature and heat time is controlled by control device 6 in heating process, make with batch accelerometer gauge outfit adhesive solidification heating temperature and heated time identical, avoid with producing difference between batch accelerometer.
Particularly, with reference to figure 2, heating arrangement 2 comprises panel 201 and base 202, and panel 201 is covered on base 202;
Panel 201 is for fixing suspension watch core 4;
The first cavity is provided with, for fixing watchcase 3 in base 202.
Particularly, base 202 is cylindrical; First cavity comprises columniform upper cavity 203 and columniform lower chamber 204, this upper cavity 203 is communicated with lower chamber 204, the central shaft conllinear of the central shaft of upper cavity 203, the central shaft of lower chamber 204 and base 202, the diameter of upper cavity 203 is greater than the diameter of lower chamber 204, makes upper cavity 203 form step 205 with the junction of lower chamber 204.
Watchcase 3 is one end open, the structure that the other end is closed, and wherein openend upwards, and blind end is downward, and watch core 4 is suspended in watchcase 3, is coated with tackifier 5 between watchcase 3 and watch core 4.
Watchcase 3 is arranged in lower chamber 204, and openend is fixed at step 205 place by the first screw 206.
Further, with reference to figure 3, panel 201 comprises annular gasket 207, and the diametric(al) of annular gasket 207 is provided with overarm 208, the center of overarm 208 is provided with first through hole suitable with the second screw 209, and watch core 4 is fixedly suspended in overarm 208 by the second screw 209.
The central shaft of annular gasket 207 and the central shaft conllinear of base 202.
Annular gasket 207 is provided with second through hole suitable with the 3rd screw 210, and panel 201 is fixedly connected with base 202 by the 3rd screw 210.
Further, with reference to figure 2, heating arrangement 2 also comprises the heating ring 211 for carrying out heating for the tackifier 5 between watchcase 3 and watch core 4.
Be provided with the annular cavity 212 suitable with heating ring 211 between the inwall of lower chamber 204 and the outer wall of base 202, heating ring 211 is arranged in annular cavity 212.
Further, annular cavity 212 is equal to the distance of the outer wall of base 202 with annular cavity 212 to the distance of the inwall of lower chamber 204; The central shaft of annular cavity 212 and the central shaft conllinear of base 202.
Heating ring 211 adstante febre, heats around whole watchcase 3, and due to the central shaft of annular cavity 212 and the central shaft conllinear of base 202, therefore heating ring 211 is equal everywhere to the distance of watchcase 3, ensures the tackifier thermally equivalent between watchcase 3 and watch core 4.
Further, heating arrangement 2 also comprises temperature sensor 213.
The inwall lower end of lower chamber 204 is provided with first groove suitable with temperature sensor 213, and temperature sensor 213 is arranged in the first groove, and temperature sensor 213 is connected with control device 6 by lead-in wire with heating ring 211.
Further, with reference to figure 4, heat insulation mould 1 comprises heat keeper 101, insulation sidewall 102 and insulation cover 103, and the establishing of insulation sidewall 102 is closed and is arranged on heat keeper 101, and insulation cover 103 is covered on insulation sidewall 102.
Heat keeper 101 and insulation cover 103 are circular, as one preferred embodiment, heat keeper 101 and insulation cover 103 are circular slab, insulation sidewall 102 is cylindrical, the equal diameters of heat keeper 101, insulation sidewall 102 and insulation cover 103, and the central shaft conllinear of the central shaft of heat keeper 101, the insulation central shaft of sidewall 102, the central shaft of insulation cover 103 and base 202.
The overall diameter being incubated diameter and the base 202 being provided with columniform second cavity 104, second cavity 104 for placing heating arrangement 2 in sidewall 102 is suitable.
Alternatively, insulation cover 103 can be connected with insulation sidewall 102 by the fastening mode of circumference, also can be incubated sidewall 102 Integral design.
Heat insulation mould 1, for carrying out heat-insulation and heat-preservation in heating arrangement 2 heating process, reduces the loss of heat, effectively improves the efficiency of heating surface.
Further, with reference to figure 1 and Fig. 3, the inwall being provided with the second circular groove 105, second groove 105 in the middle part of heat keeper 101 is also provided with the groove 106 with ft connection, going between is connected to outside control device 6 by the second groove 105 and groove 106.
Further, in the middle part of insulation cover 103, be provided with cylindrical protrusions 107, the central shaft of cylindrical protrusions 107 and central shaft conllinear, the diameter of cylindrical protrusions 107 and the equal diameters of the second cavity 104 of insulation sidewall 102.
Insulation cover 103 is covered on insulation sidewall 102, is undertaken spacing, prevent insulation cover 103 landing by cylindrical protrusions 107.
With reference to figure 1, Fig. 2 and Fig. 4, heating temperature control device is placed on surface level, the openend of watchcase 3 is fixed on step 205 by the first screw 206, and watch core 4 is fixedly suspended in overarm 208 by the second screw 209, make watch core 4 be suspended in watchcase 3, tackifier 5 is coated on watchcase 3 inwall and treats above bonding location; By circumferential positioning fastening panel 201 and base 202, then panel 201 to be fixed with base 202 by the 3rd screw 210 to be connected.Heating arrangement 2 is put in the second groove 105 of heat keeper 101, and carries out circumference by the second groove 105 and heating arrangement 2 external diameter and locate, the groove 106 of the lead-in wire of heating ring 9, temperature sensor 213 through heat keeper 101 is connected with the control device 6 of outside.Insulation sidewall 102 is socketed in outside heating arrangement 2, builds insulation cover 103, desired temperature is set by control device 6, switches on power.By temperature sensor Real-time Feedback heating-up temperature, and realize accelerometer watch core accurate heating temperature control bonding with watchcase by controlling heating ring power stage.
To sum up, in the accelerometer assembling process that provides of the present embodiment, tackifier heating temperature control device has following beneficial effect:
1, in adhesive solidification process, can be heated evenly by the single accelerometer tackifier of effective guarantee between watch core and watchcase, improve Product Precision;
2. effectively improve the consistance with batch assembling accelerometer adhesive solidification thermal histories, improve a batch consistance for accelerometer assembling;
3. use heating temperature control device provided by the invention to be heating and curing for tackifier in accelerometer watch core and watchcase assembling process, without the need to by baking oven, conserve space;
4., compared with baking oven, use heating temperature control device provided by the present invention to be that single or a small amount of gauge outfit tackifier is heating and curing, expend the energy few;
3. heating temperature control device provided by the present invention, easy and simple to handle, repeatable strong.
Although described the present invention and advantage thereof in detail, be to be understood that and can have carried out various change when not exceeding the spirit and scope of the present invention limited by appended claim, substituting and conversion.And the scope of the application is not limited only to the specific embodiment of process, equipment, means, method and step described by instructions.One of ordinary skilled in the art will readily appreciate that from disclosure of the present invention, can use perform the function substantially identical with corresponding embodiment described herein or obtain and its substantially identical result, existing and that will be developed in the future process, equipment, means, method or step according to the present invention.Therefore, appended claim is intended to comprise such process, equipment, means, method or step in their scope.
Claims (10)
1. a tackifier heating temperature control device in accelerometer assembling process, is characterized in that, comprising:
Heat insulation mould;
Be arranged at the heating arrangement in described heat insulation mould, for carrying out homogeneous heating to the tackifier in accelerometer assembling process between watchcase and watch core;
The control device be connected with described heating arrangement, for controlling heating-up temperature in heating process and heat time.
2. tackifier heating temperature control device in accelerometer assembling process according to claim 1, it is characterized in that, described heating arrangement comprises panel and base, and described panel cover is located on described base;
Described panel is used for the described watch core of fixing suspension;
The first cavity is provided with, for fixing described watchcase in described base.
3. tackifier heating temperature control device in accelerometer assembling process according to claim 2, is characterized in that, described base is cylindrical;
Described first cavity comprises columniform upper cavity and columniform lower chamber, the central shaft conllinear of the central shaft of described upper cavity, the central shaft of lower chamber and described base, the diameter of described upper cavity is greater than the diameter of described lower chamber, and the junction of described upper cavity and lower chamber forms step;
Described watchcase is one end open, the structure that the other end is closed;
Described watchcase is arranged in described lower chamber, and openend is fixed at described step place by the first screw, and described watch core is suspended in described watchcase.
4. tackifier heating temperature control device in accelerometer assembling process according to claim 3, it is characterized in that, described panel comprises annular gasket, the diametric(al) of described annular gasket is provided with overarm, the center of described overarm is provided with first through hole suitable with the second screw, and described watch core is fixedly suspended in described overarm by described second screw;
The central shaft of described annular gasket and the central shaft conllinear of described base;
Described annular gasket is provided with second through hole suitable with the 3rd screw, and described panel is fixedly connected with described base by the 3rd screw.
5. tackifier heating temperature control device in accelerometer assembling process according to claim 3, is characterized in that, described heating arrangement also comprises the heating ring for carrying out heating for the tackifier between described watchcase and watch core;
Be provided with the annular cavity suitable with described heating ring between the inwall of described lower chamber and the outer wall of described base, described heating ring is arranged in described annular cavity.
6. tackifier heating temperature control device in described accelerometer assembling process according to claim 5, it is characterized in that, described annular cavity is equal to the distance of the outer wall of described base with described annular cavity to the distance of the inwall of described lower chamber; The central shaft of described annular cavity and the central shaft conllinear of described base.
7. tackifier heating temperature control device in accelerometer assembling process according to claim 6, it is characterized in that, described heating arrangement also comprises temperature sensor;
The inwall lower end of described lower chamber is provided with first groove suitable with described temperature sensor, and described temperature sensor is arranged in described first groove, and described temperature sensor is connected with described control device by lead-in wire with described heating ring.
8. tackifier heating temperature control device in accelerometer assembling process according to claim 7, it is characterized in that, described heat insulation mould comprises heat keeper, insulation sidewall and insulation cover, described insulation sidewall establishing is closed and is arranged on described heat keeper, and described insulation cover is covered on described insulation sidewall;
Described heat keeper and described insulation cover are circular, described insulation sidewall is cylindrical, the equal diameters of described heat keeper, insulation sidewall and insulation cover, and the central shaft conllinear of the central shaft of described heat keeper, the insulation central shaft of sidewall, the central shaft of insulation cover and described base;
Be provided with columniform second cavity for placing described heating arrangement in described insulation sidewall, the diameter of described second cavity is suitable with the overall diameter of described base.
9. tackifier heating temperature control device in accelerometer assembling process according to claim 8, it is characterized in that, the second circular groove is provided with in the middle part of described heat keeper, the inwall of described second groove is also provided with groove, and described lead-in wire is connected to outside control device by described second groove and described groove.
10. tackifier heating temperature control device in accelerometer assembling process according to claim 8, it is characterized in that, cylindrical protrusions is provided with in the middle part of described insulation cover, the central shaft of described cylindrical protrusions and the central shaft conllinear of described insulation sidewall, the diameter of described cylindrical protrusions and the equal diameters of described second cavity.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410494716.1A CN104298275B (en) | 2014-09-25 | 2014-09-25 | Adhesive heating temperature control device in accelerometer assembling process |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410494716.1A CN104298275B (en) | 2014-09-25 | 2014-09-25 | Adhesive heating temperature control device in accelerometer assembling process |
Publications (2)
Publication Number | Publication Date |
---|---|
CN104298275A true CN104298275A (en) | 2015-01-21 |
CN104298275B CN104298275B (en) | 2017-06-20 |
Family
ID=52318048
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201410494716.1A Active CN104298275B (en) | 2014-09-25 | 2014-09-25 | Adhesive heating temperature control device in accelerometer assembling process |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN104298275B (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107807250A (en) * | 2016-08-30 | 2018-03-16 | 航天科工惯性技术有限公司 | A kind of adhering device and adhering method of accelerometer shading ring |
CN108408681A (en) * | 2017-12-12 | 2018-08-17 | 北京航天控制仪器研究所 | A kind of insulation construction for MEMS inertial measurement combination temperature controls |
CN109669046A (en) * | 2017-10-13 | 2019-04-23 | 航天科工惯性技术有限公司 | Detachment device for accelerometer head and the method for splitting using it |
CN110784947A (en) * | 2019-10-29 | 2020-02-11 | 北京理工大学 | Heating device and heating method for heating sample before flat plate impact experiment |
CN111443747A (en) * | 2019-01-17 | 2020-07-24 | 西安高压电器研究院有限责任公司 | Heating device |
CN113945733A (en) * | 2021-10-25 | 2022-01-18 | 北京星箭长空测控技术股份有限公司 | Quartz accelerometer fixing device and fixing method thereof |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0047660A1 (en) * | 1980-09-06 | 1982-03-17 | Peter Kellett | Accelerometers |
CN101337653A (en) * | 2008-08-29 | 2009-01-07 | 清华大学 | Automatic thermostat heating device |
CN202393384U (en) * | 2011-12-28 | 2012-08-22 | 北京星网宇达科技股份有限公司 | Micromechanical accelerometer tilt sensor adopting temperature-controlled manner to improve measuring accuracy |
CN102778700A (en) * | 2012-07-04 | 2012-11-14 | 航天科工惯性技术有限公司 | Microgravity testing device based on quartz flexible accelerometer |
CN202904405U (en) * | 2012-11-15 | 2013-04-24 | 福建福晶科技股份有限公司 | Temperature control device for nonlinear optical crystals |
CN103305137A (en) * | 2013-05-30 | 2013-09-18 | 航天科工惯性技术有限公司 | Solidifying method of adhesive in process of hoisting accelerometer |
-
2014
- 2014-09-25 CN CN201410494716.1A patent/CN104298275B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0047660A1 (en) * | 1980-09-06 | 1982-03-17 | Peter Kellett | Accelerometers |
CN101337653A (en) * | 2008-08-29 | 2009-01-07 | 清华大学 | Automatic thermostat heating device |
CN202393384U (en) * | 2011-12-28 | 2012-08-22 | 北京星网宇达科技股份有限公司 | Micromechanical accelerometer tilt sensor adopting temperature-controlled manner to improve measuring accuracy |
CN102778700A (en) * | 2012-07-04 | 2012-11-14 | 航天科工惯性技术有限公司 | Microgravity testing device based on quartz flexible accelerometer |
CN202904405U (en) * | 2012-11-15 | 2013-04-24 | 福建福晶科技股份有限公司 | Temperature control device for nonlinear optical crystals |
CN103305137A (en) * | 2013-05-30 | 2013-09-18 | 航天科工惯性技术有限公司 | Solidifying method of adhesive in process of hoisting accelerometer |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107807250A (en) * | 2016-08-30 | 2018-03-16 | 航天科工惯性技术有限公司 | A kind of adhering device and adhering method of accelerometer shading ring |
CN109669046A (en) * | 2017-10-13 | 2019-04-23 | 航天科工惯性技术有限公司 | Detachment device for accelerometer head and the method for splitting using it |
CN108408681A (en) * | 2017-12-12 | 2018-08-17 | 北京航天控制仪器研究所 | A kind of insulation construction for MEMS inertial measurement combination temperature controls |
CN111443747A (en) * | 2019-01-17 | 2020-07-24 | 西安高压电器研究院有限责任公司 | Heating device |
CN110784947A (en) * | 2019-10-29 | 2020-02-11 | 北京理工大学 | Heating device and heating method for heating sample before flat plate impact experiment |
CN110784947B (en) * | 2019-10-29 | 2020-10-27 | 北京理工大学 | Heating device and heating method for heating sample before flat plate impact experiment |
CN113945733A (en) * | 2021-10-25 | 2022-01-18 | 北京星箭长空测控技术股份有限公司 | Quartz accelerometer fixing device and fixing method thereof |
CN113945733B (en) * | 2021-10-25 | 2024-05-24 | 北京星箭长空测控技术股份有限公司 | Quartz accelerometer fixing device and fixing method thereof |
Also Published As
Publication number | Publication date |
---|---|
CN104298275B (en) | 2017-06-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN104298275A (en) | Adhesive heating and temperature control device used in accelerometer assembling process | |
US20160146011A1 (en) | System for painting a splayed end of a hollow shaft on a rotary paint bench | |
CN102717071A (en) | Metal-powder-tube-used mould with uniform wall thickness and long size, and preparation method thereof | |
CN204313962U (en) | Blackbody radiation source | |
CN204555644U (en) | The vacuum chamber mounting structure of vacuum sintering furnace | |
CN202460667U (en) | Annular crucible | |
CN203833974U (en) | Vacuum annealing furnace | |
CN103305137B (en) | Solidifying method of adhesive in process of hoisting accelerometer | |
CN205099572U (en) | Optical fiber wire drawing stove furnace construction | |
JP6303744B2 (en) | Optical fiber manufacturing apparatus and optical fiber manufacturing method | |
CN207021234U (en) | A kind of spliced dry etching equipment | |
CN204101567U (en) | The sample heating constant-temperature equipment of glycolated hemoglobin analysis rapidly and efficiently | |
CN106089335B (en) | Turbine blade trial assembly adapted bogey and its assembly method | |
CN204844049U (en) | Oil -well cement thick liquid multiviscosisty appearance thick liquid bowl cover extracting tool group | |
JP2018140439A (en) | Method for producing ring core for casting technical production of nozzle ring of axial flow turbine | |
KR101597766B1 (en) | Cooking vessel and the manufacturing methods of the same | |
CN110548656B (en) | Dispensing process and dispensing jig for mobile phone camera support | |
CN204187019U (en) | A kind of Hand-operated butterfly valve device of annealing kiln wind outside Systematical control | |
CN204257707U (en) | A kind of viscose glue solidification equipment of ring piezoelectric transducer | |
CN203177419U (en) | Novel cover for air conditioner | |
CN211229502U (en) | Stainless steel template with thermal-insulated function | |
CN109817505A (en) | Plasma feeding mechanism and wafer etching device | |
CN219883062U (en) | Glass steel pipe heating device | |
CN213400865U (en) | Glue pouring mold of torquer fixed ring assembly | |
CN202626254U (en) | Internal spline sleeve carburizing and quenching solid-shaping device |
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 |