CN103344486A - Heating device for reheat cracking implant testing machine - Google Patents
Heating device for reheat cracking implant testing machine Download PDFInfo
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- CN103344486A CN103344486A CN2013102783711A CN201310278371A CN103344486A CN 103344486 A CN103344486 A CN 103344486A CN 2013102783711 A CN2013102783711 A CN 2013102783711A CN 201310278371 A CN201310278371 A CN 201310278371A CN 103344486 A CN103344486 A CN 103344486A
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Abstract
The invention relates to a heating device for an implant testing machine, and especially relates to a heating device for a reheat cracking implant testing machine. The heating device comprises a heating chamber, wherein the heating chamber is formed by two annular steel plates and is provided with an inner wall and an outer wall, and one end of the heating chamber is communicated with the outside; the top ends of the two annular steel plates are respectively closed by a round steel sheet, and a positive hole and a negative hole are symmetrically formed in the round steel sheet; a heating assembly is wound on the inner wall, and a positive wiring assembly and a negative wiring assembly are arranged on the positive hole and the negative hole; the heating assembly is connected with a power supply through the positive wiring assembly and the negative wiring assembly, and the lower ends of the two annular steel plates are sealed by an annular steel sheet. Therefore, the heating device provided by the invention has the advantages of being simple and compact in structure, light in weight, safe, rapid and uniform in heating, small in temperature error and low in heat loss.
Description
Technical field
The present invention relates to a kind of bolt testing machine heating arrangement, especially relate to a kind of reheat crack(ing) bolt testing machine heating arrangement.
Background technology
Along with the raising of the multi-element alloyed and intensity rank of steel and nickel-base alloy, the reheat crack(ing) of welding joint becomes the problem that receives much concern, and need carry out test evaluation to the reheat cracking susceptibility of these materials.Compare with other evaluation method, the implant test method have consumable material few, quantitatively accurately and close to advantages such as reality.Bolt testing machine is being widely used aspect the cold crack susceptibility of evaluation steel, when still being used for the reheat crack(ing) test, need carry out the high temperature heating to the latch coupon, therefore, is necessary to invent a kind of heating arrangement and is used for the reheat crack(ing) implant test.
Summary of the invention
The present invention solves the existing in prior technology technical matters; A kind of simple in structure, small volume and less weight, safety are provided, and heating fast evenly, temperature error is little, thermal loss is little a kind of reheat crack(ing) bolt testing machine heating arrangement.
Above-mentioned technical matters of the present invention is mainly solved by following technical proposals:
A kind of reheat crack(ing) bolt testing machine heating arrangement is characterized in that, comprise by two doughnut-shaped steel plates form have an inner and outer wall and an end and the extraneous heating chamber that communicates; Described two doughnut-shaped steel plate tops are respectively by a circular steel disc sealing; Be arranged with anodal hole and negative pole hole on the described circular steel disc; Be wound with heating component on the described inwall; Anodal hole and negative pole hole are provided with anodal connector assembly and negative pole connector assembly; Heating component is by anodal connector assembly and negative pole connector assembly and power connection; Two doughnut-shaped steel plate lower ends are by an annular steel disc sealing.
Design feature of the present invention also is, each links a tinsel (as copper wire or aluminium wire) that resistance is less in the strand mode at the heating wire two ends, is connected on respectively afterwards on the binding post at two ends to be fixed by gib screw.Like this, because resistance value wiry is very little, when heating arrangement was worked, the heat that tinsel produces was very little, thereby heat expansion, the shrinkage phenomenon at tinsel and binding post interface place are not obvious, more can not produce electric arc thus, and heating wire just can not be blown yet.
A kind of reheat crack(ing) bolt testing machine heating arrangement above-mentioned is filled with thermal insulation material between the described inner and outer wall, and thermal insulation material adopts asbestos wadding.
At above-mentioned a kind of reheat crack(ing) bolt testing machine heating arrangement, described heating component comprises nichrome wire and is set in insulating ceramics pipe on the nichrome wire that described nichrome wire one end is connected with anodal connector assembly by anodal hole; The other end is connected with the negative pole connector assembly by the negative pole hole.
At above-mentioned a kind of reheat crack(ing) bolt testing machine heating arrangement, described anodal connector assembly and negative pole connector assembly all adopt the tinsel with nichrome wire hinge joint, and described tinsel is connected on that the back is fixed on the doughnut-shaped steel plate on outer wall top by gib screw on the power-line terminal on anodal hole and the negative pole hole.
At above-mentioned a kind of reheat crack(ing) bolt testing machine heating arrangement, described tinsel adopts copper wire or aluminium wire, and described tinsel and nichrome wire hinge joint place also are provided with the anti-flaming thermal-insulation material; Described anti-flaming thermal-insulation material adopts cotton varnished sleeve.
A kind of reheat crack(ing) bolt testing machine heating arrangement above-mentioned is equipped with a thermopair patchhole on the doughnut-shaped steel plate on outer wall and inwall top, thermopair is successively by stretching in the heating chamber behind two thermopair patchholes.
A kind of reheat crack(ing) bolt testing machine heating arrangement above-mentioned also fixedly has a handle on the doughnut-shaped steel plate on described outer wall top.
Therefore, the present invention has following advantage: 1. on the basis of traditional bolt testing machine, add the present invention, cooperate the part transformation of relevant temperature controlling instruments and mechanical mechanism can obtain to be directly used in the bolt testing machine that reheat cracking susceptibility is studied, make improved bolt testing machine inherit that the test of traditional bolt testing machine is simple, the cycle is short, cost is low, have the characteristics of qualitative and quantitative experimental result, make the reheat cracking susceptibility test become particularly simple; By between inside and outside wall and thermopair add thermal insulation material around stretching into the aperture of heating arrangement, effectively reduced scattering and disappearing of heat, improved the utilization factor of heat energy; 3. by the heating wire annular is wrapped in the heating arrangement inwall, directly communicate with coupon to be heated, dwindled temperature error, effectively warranty test result's accuracy and reliability; 4. regulate heating current and can regulate programming rate, holding stage can be realized regulating heating current automatically, reduces temperature fluctuation, the limit temperature error; 5. guarantee the accuracy of thermometric by the controllability of thermopair insertion depth.
Description of drawings
Accompanying drawing 1 is a kind of main TV structure synoptic diagram of the present invention.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.Among the figure, anti-flaming thermal-insulation material 1, power-line terminal 2, thermopair 3, handle 4, thermopair patchhole 5, tinsel 6, nichrome wire 7, inwall 8, thermal insulation material 9, outer wall 10.
Embodiment:
The present invention is made up of nichrome wire 7, tinsel 6, power-line terminal 2, heating chamber.Described heating chamber has by inwall 8 and outer wall 10 and constitutes, and filling heat insulator 9 between the inside and outside wall.Nichrome wire 7 annulars are wrapped in inwall, and are fixed by the insulating ceramics pipe.Nichrome wire 7 directly communicates with coupon to be heated by inwall, so not only can improve the thermal efficiency, energy savings, and heating wire directly carries out radiation heating to the heating coupon, thermmal storage and the thermal inertia of having avoided the heat-insulation and heat-preservation material to bring, so the phenomenon of tens degrees centigrade of temperature overshot after temperature rises to setting value, can not occur, dwindled temperature error, this heating arrangement material object that we will work it out is tested and is found that temperature error only is ± 1 ℃, effectively warranty test result's accuracy and reliability.In the experiment, by regulating heating current, can regulate programming rate easily, and heating current is constantly regulated in the control system meeting constantly automatically after temperature rises to setting value, makes and generates heat in the insulating process evenly, guarantees that temperature fluctuation is little, the restriction error is at ± 1 ℃.
Nichrome wire 7 two ends are by tinsel 6(copper wire or aluminium wire) join with power-line terminal 2 positive poles, negative pole respectively.Power-line terminal 2 is provided with anti-flaming thermal-insulation material 1(such as cotton varnished sleeve with the tinsel junction), prevent that effectively power lead from by burned, having prolonged the serviceable life of power lead and heating arrangement, play insulation simultaneously and prevent from conducting electricity, to guarantee personal security.
The device top is provided with handle 4, and is convenient mobile.
Thermopair patchhole and power lead insert in the hole and also are filled with heat-barrier material, thermopair 3 is vertically fixed on the heating arrangement top, thermopair can vertically be inserted in the heating arrangement, guaranteed the accuracy of thermocouple temperature measurement, and the insertion depth of thermopair 3 can be regulated, to adapt to the length variations of latch coupon to be heated, guarantee that thermopair all can directly contact with coupon to be heated in any case, guarantee the accuracy of thermometric.
Specific embodiment described herein only is that the present invention's spirit is illustrated.Those skilled in the art can make various modifications or replenish or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has used terms such as anti-flaming thermal-insulation material 1, power-line terminal 2, thermopair 3, handle 4, thermopair patchhole 5, tinsel 6, nichrome wire 7, inwall 8, thermal insulation material 9, outer wall 10 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; They are construed to any additional restriction all is contrary with spirit of the present invention.
Claims (7)
1. a reheat crack(ing) bolt testing machine heating arrangement is characterized in that, comprise by two doughnut-shaped steel plates form have inwall (8) and an outer wall (10) and an end and the extraneous heating chamber that communicates; Described two doughnut-shaped steel plate tops are respectively by a circular steel disc sealing; Be arranged with anodal hole and negative pole hole on the described circular steel disc; Described inwall is wound with heating component on (8); Anodal hole and negative pole hole are provided with anodal connector assembly and negative pole connector assembly; Heating component is by anodal connector assembly and negative pole connector assembly and power connection; Two doughnut-shaped steel plate lower ends are by an annular steel disc sealing.
2. a kind of reheat crack(ing) bolt testing machine heating arrangement according to claim 1 is characterized in that, is filled with thermal insulation material (9) between described inwall (8) and the outer wall (10), and thermal insulation material adopts asbestos wadding.
3. a kind of reheat crack(ing) bolt testing machine heating arrangement according to claim 2, it is characterized in that, described heating component comprises nichrome wire (7) and is set in insulating ceramics pipe on the nichrome wire (7) that described nichrome wire (7) one ends are connected with anodal connector assembly by anodal hole; The other end is connected with the negative pole connector assembly by the negative pole hole.
4. a kind of reheat crack(ing) bolt testing machine heating arrangement according to claim 3, it is characterized in that, described anodal connector assembly and negative pole connector assembly all adopt the tinsel (6) with nichrome wire (7) hinge joint, and the power-line terminal (2) that described tinsel (6) is connected on anodal hole and the negative pole hole upward is fixed on the doughnut-shaped steel plate on outer wall (10) top by gib screw the back.
5. a kind of reheat crack(ing) bolt testing machine heating arrangement according to claim 4 is characterized in that, described tinsel (6) adopts copper wire or aluminium wire; Described tinsel (6) also is provided with anti-flaming thermal-insulation material (1) with nichrome wire (7) hinge joint place; Described anti-flaming thermal-insulation material adopts cotton varnished sleeve.
6. a kind of reheat crack(ing) bolt testing machine heating arrangement according to claim 1, it is characterized in that, be equipped with a thermopair patchhole on the doughnut-shaped steel plate on outer wall (8) and inwall (10) top, thermopair (3) is successively by stretching in the heating chamber behind two thermopair patchholes.
7. a kind of reheat crack(ing) bolt testing machine heating arrangement according to claim 1 is characterized in that, on the doughnut-shaped steel plate on described outer wall (10) top a handle (4) is arranged fixedly also.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102783711A CN103344486A (en) | 2013-07-04 | 2013-07-04 | Heating device for reheat cracking implant testing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102783711A CN103344486A (en) | 2013-07-04 | 2013-07-04 | Heating device for reheat cracking implant testing machine |
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| CN103344486A true CN103344486A (en) | 2013-10-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109142081A (en) * | 2018-06-29 | 2019-01-04 | 合肥通用机械研究院有限公司 | A kind of steel product stress relaxation crack sensitivity evaluation method |
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| CN200979543Y (en) * | 2006-07-06 | 2007-11-21 | 中国石油天然气管道局 | A bolt testing machine |
| CN201069427Y (en) * | 2007-08-01 | 2008-06-04 | 合肥通用机械研究院 | Bolt tester with heating device |
| CN101907594A (en) * | 2010-06-11 | 2010-12-08 | 中国石油天然气股份有限公司 | Wellhead crude oil water content on-line measuring device |
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| CN102347200A (en) * | 2010-08-04 | 2012-02-08 | 江苏天瑞仪器股份有限公司 | Annular heating wire gas heating apparatus |
| CN102495095A (en) * | 2011-11-07 | 2012-06-13 | 兰州理工大学 | Automatic control device of material cold and hot circulation performance and operating method thereof |
| CN102507055A (en) * | 2011-10-11 | 2012-06-20 | 河北省电力建设调整试验所 | Measuring method for measuring rupture work in crack test of small-sample implant testing machine |
-
2013
- 2013-07-04 CN CN2013102783711A patent/CN103344486A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5046360A (en) * | 1989-12-15 | 1991-09-10 | Rosemount Inc. | Aerodynamic probe internal constructions |
| WO1993010962A1 (en) * | 1991-11-27 | 1993-06-10 | Minnesota Mining And Manufacturing Company | Method and article for microwave bonding of polyethylene pipe |
| EP1651009A2 (en) * | 2004-10-21 | 2006-04-26 | Strix Limited | Heaters for liquid heating vessels |
| US20070019351A1 (en) * | 2005-07-22 | 2007-01-25 | Littelfuse, Inc. | Electrical device with integrally fused conductor |
| CN200979543Y (en) * | 2006-07-06 | 2007-11-21 | 中国石油天然气管道局 | A bolt testing machine |
| CN1963442A (en) * | 2006-11-03 | 2007-05-16 | 厦门大学 | In-situ measuring apparatus for high temperature distortion ceramic fiber |
| CN201069427Y (en) * | 2007-08-01 | 2008-06-04 | 合肥通用机械研究院 | Bolt tester with heating device |
| US20110097882A1 (en) * | 2009-10-27 | 2011-04-28 | Advanced Technology Materials, Inc. | Isotopically-enriched boron-containing compounds, and methods of making and using same |
| CN101907594A (en) * | 2010-06-11 | 2010-12-08 | 中国石油天然气股份有限公司 | Wellhead crude oil water content on-line measuring device |
| CN102347200A (en) * | 2010-08-04 | 2012-02-08 | 江苏天瑞仪器股份有限公司 | Annular heating wire gas heating apparatus |
| CN102507055A (en) * | 2011-10-11 | 2012-06-20 | 河北省电力建设调整试验所 | Measuring method for measuring rupture work in crack test of small-sample implant testing machine |
| CN102495095A (en) * | 2011-11-07 | 2012-06-13 | 兰州理工大学 | Automatic control device of material cold and hot circulation performance and operating method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109142081A (en) * | 2018-06-29 | 2019-01-04 | 合肥通用机械研究院有限公司 | A kind of steel product stress relaxation crack sensitivity evaluation method |
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Application publication date: 20131009 |