CN102323139A - Cold insulation testing device for low-temperature impacts - Google Patents
Cold insulation testing device for low-temperature impacts Download PDFInfo
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- CN102323139A CN102323139A CN201110227111A CN201110227111A CN102323139A CN 102323139 A CN102323139 A CN 102323139A CN 201110227111 A CN201110227111 A CN 201110227111A CN 201110227111 A CN201110227111 A CN 201110227111A CN 102323139 A CN102323139 A CN 102323139A
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Abstract
The invention relates to a cold insulation testing device for low temperature impacts, which belongs to an auxiliary testing device for impacting metal materials at a low temperature. The cold insulation testing device for the low-temperature impacts consists of a stainless steel inner barrel, a heat insulating material, a heat insulating barrel, an inner barrel cover, a heat insulating barrel cover and a temperature meter, wherein the stainless steel inner barrel is arranged in the heat insulating barrel; the heat insulating material is arranged between the stainless steel inner barrel and the heat insulating barrel; the inner barrel cover is arranged on the stainless steel inner barrel; the heat insulating barrel cover is arranged on the heat insulating barrel; the temperature meter is arranged on the inner barrel cover and is inserted into the stainless steel inner barrel; and a display part of the temperature meter is arranged outside the heat insulating barrel cover. The device has the advantages of reasonable structural design, no requirement on transformation of the conventional impact testing machine, convenience of operation, good cold insulation effect and low cost.
Description
Technical field
The present invention relates to a kind of cold insulation test unit that is used for low-temperature impact, belong to a kind of ancillary test device of metal material low-temperature impact.
Background technology
Along with industrial expansion, steel are widely used in the low temperature environment.For example: liquefied gas storage, chemical pipeline, boats and ships, bridge and various field work machineries etc.At present, the general complex structure of low-temperature impact test device, complex operation that domestic testing machine factory provides, cost is higher, and needs the impact testing machine to transform.
Summary of the invention
Technical matters to be solved by this invention provides a kind of reasonable in design, need not existing impact testing machine transformation, easy to operate, cold insulation is effective, cost the is low cold insulation test unit that is used for low-temperature impact.
It is this cold insulation test unit that is used for low-temperature impact that the present invention solves the problems of the technologies described above the technical scheme that is adopted; Its design feature is: be made up of stainless steel inner core, insulation material, heat-preserving container, inside drum cover, insulation bung, thermometer; Described stainless steel inner core is arranged among the heat-preserving container, and said insulation material is arranged between stainless steel inner core and the heat-preserving container, and said stainless steel inner core is provided with inside drum cover; Said heat-preserving container is provided with the insulation bung; Said inside drum cover is provided with thermometer, and said thermometer gos deep in the stainless steel inner core, and the display part of thermometer is arranged on outside the insulation bung.
As preferably, stainless steel inner core of the present invention and inside drum cover adopt and are threaded.
As preferably, inside drum cover of the present invention carries out screw thread with thermometer and closely is connected.
As preferably, temperature of the present invention is counted digital display thermometer.After connecting, need directly to insert inner core, and contact with cryogenic media, the range of this digital display thermometer is-200-+200 ℃.
As preferably, the pars intramuralis of stainless steel inner core of the present invention is provided with the inner core heat-insulation layer.
As preferably, the pars intramuralis of heat-preserving container of the present invention is provided with the heat-preserving container heat-insulation layer.
As preferably, insulation material of the present invention is a polyurethane foamed material.
As preferably, inner core heat-insulation layer of the present invention is a polyurethane foamed material.
As preferably, heat-preserving container heat-insulation layer of the present invention is a polyurethane foamed material.
The present invention compares with prior art and has the following advantages and effect: use the cold insulation device because the present invention has designed the succinct low-temperature impact test of a cover; This device can cooperate impact testing machine; Carry out-196 ℃ low-temperature impact test, can guarantee the test condition of cryogenic material accurately, reliably, and meet GB GB/T 229; Europe superscript EN 10045-1; U.S. mark ASTM A370 promptly from taking out sample to interrupting sample 3s-5s, therefore is with a wide range of applications to the requirement of low-temperature impact test.Low-temperature impact cold insulation device of the present invention need not the impact testing machine and transforms, and just can make things convenient for, measure the impact flexibility of metal material under low temperature environment.Structural design advantages of simple, cost are low.Convenient measurement, measurement result are accurate.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the I place structure for amplifying synoptic diagram of Fig. 1.
Label declaration: chuck 1, inside drum cover 2, insulation bung 3, thermometer 4, stainless steel inner core 5, insulation material 6, heat-preserving container 7.
Embodiment
Below in conjunction with embodiment the present invention is done further detailed description, following examples are to explanation of the present invention and the present invention is not limited to following examples.
Embodiment 1:
Like Fig. 1, shown in 2; Metal material low-temperature impact test cold insulation device of the present invention is made up of chuck 1, inside drum cover 2, insulation bung 3, thermometer 4, stainless steel inner core 5, insulation material 6, heat-preserving container 7; Be cooling chamber in the stainless steel inner core 5, heat-preserving container is the cold insulation chamber.
(1) cooling chamber.
The top of cooling chamber is an inside drum cover 2, and set inside has thermometer 4.Two-layer stainless steel inside and outside stainless steel inner core 5 adopts, and the centre adds insulation material makes the temperature of the assurance heat eliminating medium that the temperature of cooling chamber can be stable., as shown in Figure 2 between inside drum cover 2 and the thermometer 4 through being threaded.Same inside drum cover 2 also is through being threaded, preventing that the vaporization of liquid nitrogen from overflowing with inner core 5.Inside drum cover 2 is transportable, and purpose is more convenient when loading and unloading for test sample.
(2) cold insulation chamber.
The cold insulation chamber is provided with chuck 1, insulation bung 3, insulation material 6, heat-preserving container 7.The temperature that the cold insulation chamber can be heat eliminating medium rises, and guarantees that the temperature of impact specimen in cooling chamber is-196 ℃ (guaranteeing that maximum deviation is 2 ℃).
Thermometer 4 adopts with inside drum cover 2 and is threaded, and directly contacts with heat eliminating medium, guarantees the real-time monitoring of temperature.
Working method:
To be incubated bung 3 opens; The inside drum cover 2 that will have thermometer 4 is simultaneously outwarded winding; Put impact specimen (fitting in jaggy the bottom surface with stainless steel inner core 5); Liquid nitrogen with instrument will take out in the 50L liquid nitrogen container is poured in the cooling chamber of cold insulation device, and filling level is not less than 2/3rds of stainless steel inner core 5 height, afterwards inside drum cover 2 and insulation bung 3 is successively built.After the precooling time is not less than 10min, open two lids, replenish liquid nitrogen; Guarantee that liquid level is higher than 2/3rds of inner core height, two lids are successively built, treat that 4 apparent variation of temperature of digital display thermometer are in 1 ℃; Pick up counting, and the time greater than more than the 10min, can carry out impulse test.
In addition, need to prove, the specific embodiment described in this instructions, its zero, the shape of parts, institute's title of being named etc. can be different.Allly conceive equivalence or the simple change that described structure, characteristic and principle are done, include in the protection domain of patent of the present invention according to patent of the present invention.Person of ordinary skill in the field of the present invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment; Only otherwise depart from structure of the present invention or surmount the defined scope of these claims, all should belong to protection scope of the present invention.
Claims (9)
1. cold insulation test unit that is used for low-temperature impact; It is characterized in that: form by stainless steel inner core, insulation material, heat-preserving container, inside drum cover, insulation bung, thermometer; Described stainless steel inner core is arranged among the heat-preserving container, and said insulation material is arranged between stainless steel inner core and the heat-preserving container, and said stainless steel inner core is provided with inside drum cover; Said heat-preserving container is provided with the insulation bung; Said inside drum cover is provided with thermometer, and said thermometer gos deep in the stainless steel inner core, and the display part of thermometer is arranged on outside the insulation bung.
2. the cold insulation test unit that is used for low-temperature impact according to claim 1 is characterized in that: described stainless steel inner core and inside drum cover adopt and are threaded.
3. the cold insulation test unit that is used for low-temperature impact according to claim 2 is characterized in that: described inside drum cover carries out screw thread with thermometer and closely is connected.
4. the cold insulation test unit that is used for low-temperature impact according to claim 1, it is characterized in that: described temperature is counted digital display thermometer.
5. the cold insulation test unit that is used for low-temperature impact according to claim 1, it is characterized in that: the pars intramuralis of described stainless steel inner core is provided with the inner core heat-insulation layer.
6. the cold insulation test unit that is used for low-temperature impact according to claim 1, it is characterized in that: the pars intramuralis of described heat-preserving container is provided with the heat-preserving container heat-insulation layer.
7. the cold insulation test unit that is used for low-temperature impact according to claim 1 is characterized in that: described insulation material is a polyurethane foamed material.
8. the cold insulation test unit that is used for low-temperature impact according to claim 5 is characterized in that: described inner core heat-insulation layer is a polyurethane foamed material.
9. the cold insulation test unit that is used for low-temperature impact according to claim 6 is characterized in that: described heat-preserving container heat-insulation layer is a polyurethane foamed material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110227111A CN102323139A (en) | 2011-08-09 | 2011-08-09 | Cold insulation testing device for low-temperature impacts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110227111A CN102323139A (en) | 2011-08-09 | 2011-08-09 | Cold insulation testing device for low-temperature impacts |
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| Publication Number | Publication Date |
|---|---|
| CN102323139A true CN102323139A (en) | 2012-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201110227111A Pending CN102323139A (en) | 2011-08-09 | 2011-08-09 | Cold insulation testing device for low-temperature impacts |
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| CN (1) | CN102323139A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843482A (en) * | 2017-11-27 | 2018-03-27 | 中国石油天然气集团公司 | A kind of middle large scale test specimen cryogenic box |
| CN108896416A (en) * | 2018-06-15 | 2018-11-27 | 常州蓝翼飞机装备制造有限公司 | The Sample devices and its test method of low-temperature impact test |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2302261Y (en) * | 1997-07-23 | 1998-12-30 | 孙厚 | Liquid nitrogen steam bath low-temperature treatment apparatus |
| CN101216233A (en) * | 2008-01-14 | 2008-07-09 | 浙江大学 | Controllable temperature deep cooling processing system based on self supercharging cryogenic fluids conveying technology |
| CN201228274Y (en) * | 2008-07-10 | 2009-04-29 | 浙江迪邦达轴承有限公司 | Constant thermal apparatus at low temperature |
| CN202256024U (en) * | 2011-08-09 | 2012-05-30 | 振石集团东方特钢股份有限公司 | Cold insulation testing device for low temperature impact |
-
2011
- 2011-08-09 CN CN201110227111A patent/CN102323139A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2302261Y (en) * | 1997-07-23 | 1998-12-30 | 孙厚 | Liquid nitrogen steam bath low-temperature treatment apparatus |
| CN101216233A (en) * | 2008-01-14 | 2008-07-09 | 浙江大学 | Controllable temperature deep cooling processing system based on self supercharging cryogenic fluids conveying technology |
| CN201228274Y (en) * | 2008-07-10 | 2009-04-29 | 浙江迪邦达轴承有限公司 | Constant thermal apparatus at low temperature |
| CN202256024U (en) * | 2011-08-09 | 2012-05-30 | 振石集团东方特钢股份有限公司 | Cold insulation testing device for low temperature impact |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843482A (en) * | 2017-11-27 | 2018-03-27 | 中国石油天然气集团公司 | A kind of middle large scale test specimen cryogenic box |
| CN107843482B (en) * | 2017-11-27 | 2024-04-02 | 中国石油天然气集团公司 | Low-temperature box for medium-and-large-size test piece |
| CN108896416A (en) * | 2018-06-15 | 2018-11-27 | 常州蓝翼飞机装备制造有限公司 | The Sample devices and its test method of low-temperature impact test |
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Application publication date: 20120118 |