CN105136530A - On-site detection method for cable shielding layer material - Google Patents
On-site detection method for cable shielding layer material Download PDFInfo
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- CN105136530A CN105136530A CN201510355824.5A CN201510355824A CN105136530A CN 105136530 A CN105136530 A CN 105136530A CN 201510355824 A CN201510355824 A CN 201510355824A CN 105136530 A CN105136530 A CN 105136530A
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Abstract
An on-site detection method for a cable shielding layer material includes the following steps: placing a shielding layer sample in a melting chamber of a specially-made melting device; placing a thermite in a reaction chamber of the specially-made melting device, and adding a little amount of ignition powder on the upper layer of the thermite; covering with a cover plate, igniting with an ignition gun, and melting the shielding layer sample in the melting chamber by using an aluminothermic reaction; after finishing the reaction and cooling, taking out the re-solidified sample in the melting chamber; polishing dirt on the surface of the sample with abrasive paper; and detecting the sample with a portable conductivity meter or other portable metal component detectors. The cable shielding layer sample melting device for detecting the shielding layer includes a base (1), a middle seat (2), a melting pipe (3), a reaction chamber outer shell (4) and the cover plate (5). The device can be used for melting the cable shielding layer sample, and facilitates material detection. The device is convenient to assemble and disassemble. The method and the device can conveniently and rapidly detect the cable shielding layer material on site.
Description
Technical field
The present invention relates to a kind of in-situ check and test method of cable shield material, belong to cable onthe technology of site test field.
Background technology
The metal level that cable shield is use conductance cloth, netted braided wire wraps up signal wire, for shielding external interference, reduces the loss of signal transmission simultaneously.At present, the cable shield material of domestic goods differs, and common are fine copper, copper cover aluminum, brass.Cable in use, often can peel off shell, and screen layer is exposed in air to be connected with other conductors.Now, the screen layer of fine copper material in atmosphere corrosion stability is fine, can direct exposed use; And the corrosion stability of the material such as copper cover aluminum, brass is very poor, anti-corrosion measure need be taked.If do not differentiated screen layer material before use, be easy to cause that preservative treatment is improper causes screen layer corrosion cracking.
At present, the detection method of cable shield material is a lot, comprises electron microscope method, spectroscopy, spectroscopic methodology, chromatography etc.They are all general metal material detection methods, but generally need carry out in laboratory, are difficult to onsite application.On the other hand, the portable set of Site Detection metal material, as Portable conductivity meter, portable direct-reading spectrometer, portable alloy analysis instrument etc., sample is all needed to be block, but cable shield is generally worked out by tinsel, sample is loose, is difficult to utilize above-mentioned instrument to detect.
Summary of the invention
The object of the invention is, according to existing cable Site Detection Problems existing, the present invention proposes a kind of in-situ check and test method and device of cable shield material.
Realizing technical scheme of the present invention is, the invention provides the sample melting device of a kind of cable shield, and utilizes the detection of this device realization to cable shield.
The sample melting device of cable shield of the present invention, by base, middle base, fusing pipe, reaction chamber shell and cover plate composition.Middle base is embedded in the groove of base center upper portion, and fusing pipe is closely embedded in the groove of middle base center of top, and fusing pipe inside is melt chamber; Have the reaction chamber shell being wrapped in middle base around middle base, reaction chamber shell is arranged on base, and cover plate is arranged at the top of reaction chamber shell.
Base: its material is graphite, top is fluted closely to be embedded for middle base.
Middle base: its material is high-temperature heat-conductive pottery, and bottom closely can embed base, top is fluted closely to be embedded for fusing pipe.
Fusing pipe: its material is high-temperature heat-conductive pottery, and be hollow tubular, bottom closely can embed middle base, and top closely can embed cover plate, and inside is melt chamber, sample is in this fusing and solidify.
Reaction chamber shell: its material is graphite, be placed on base, there is cylindrical cavity at middle part, cavity lower end closely wraps middle base, cavity upper end closely wraps cover plate base projections, this cavity forming reactions chamber, and thermit provides fusing sample institute heat requirement in this reaction.
Cover plate: its material is graphite, is placed on reaction chamber shell, and its base projections closely embeds between fusing pipe and reaction chamber shell, and sidepiece leaves lighting-up tuyere, during for igniting.
The in-situ check and test method of a kind of cable shield material of the present invention, it comprises the following steps:
(1) screen layer sample is placed in the melt chamber of the sample melting device of described cable shield;
(2) thermit is placed in the reaction chamber of the sample melting device of described cable shield, and layer adds the powder that ignites a little thereon;
(3) cover cover plate, with burning torch igniting, utilize thermit reaction to make the screen layer in melt chamber sample melting;
(4), after question response terminates cooling, the sample again solidified in melt chamber is taken out;
(5) sample surfaces dirt is fallen with sand papering;
(6) utilize Portable conductivity meter or other potable metal composition detection instrument test sample, judge screen layer material.
The invention has the beneficial effects as follows, the in-situ check and test method of a kind of cable shield material disclosed by the invention utilizes cable shield sample melting device fusing cable shield sample, and make it be frozen into bulk, thus Portable conductivity meter or other potable metal composition detection instrument test sample can be utilized easily, judge screen layer material, have easy to use, the feature that detection speed is fast, thoroughly solve the problem that cable shield material is difficult to Site Detection.In addition, it is simple that the sample melting device of a kind of cable shield disclosed by the invention has structure, with low cost, the feature of easy accessibility.
The present invention can be applicable to the Site Detection of cable shield material.
Accompanying drawing explanation
Fig. 1 is the structural representation of the sample melting device of cable shield of the present invention;
In figure, 1 is base; 2 is middle base; 3 is fusing pipes; 4 is reaction chamber shells; 5 is cover plates; 6 is melt chamber; 7 is reaction chambers; 8 is lighting-up tuyeres.
Embodiment
For technology contents of the present invention, Characteristic can be understood further, hereby enumerate following examples, and coordinate accompanying drawing to be described in detail as follows:
The sample melting device of cable shield of the embodiment of the present invention as shown in Figure 1.The sample melting device of cable shield comprises base 1, middle base 2, fusing pipe 3, reaction chamber shell 4 and cover plate 5.Middle base 2 is embedded in the groove of base 1 center of top, and fusing pipe 3 is closely embedded in the groove of middle base 2 center of top, and fusing pipe 3 inside is melt chamber 6; Have the reaction chamber shell 4 being wrapped in middle base around middle base 2, reaction chamber shell 4 is arranged on base 1, and cover plate 5 is arranged at the top of reaction chamber shell 4, and sidepiece leaves lighting-up tuyere 8, during for igniting.
An in-situ check and test method for cable shield material, it comprises the following steps:
(1) strip off cable, intercepts screen layer sample with scissors, ensures sample cleanup, avoids other positions of cable or other dirts on-the-spot to be mixed into screen layer sample;
(2) melting appartus cover plate is taken off, stains all in scavenge unit, caking, attachment, residue and moisture, and check whether other positions of melting appartus firmly install;
(3) screen layer sample is placed in the melt chamber also compacting of special melting appartus, sample size is adjusted to high about 2cm in melt chamber;
(4) thermit is placed in the reaction chamber of special melting appartus, aluminothermy dosage adds to apart from 1cm place, reaction chamber top, and layer adds the powder that ignites a little thereon;
(5) cover cover plate, with burning torch igniting, utilize thermit reaction to make the screen layer in melt chamber sample melting;
(6) after 30s to be cooled, can melting appartus be taken apart, take out the sample again solidified in melt chamber;
(7) fall sample surfaces dirt with sand papering, and make sample have a smooth plane;
(8) utilize Portable conductivity meter or other potable metal composition detection instrument test sample, judge screen layer material.
Claims (7)
1. an in-situ check and test method for cable shield material, is characterized in that, said method comprising the steps of:
(1) screen layer sample is placed in the melt chamber of the sample melting device of cable shield;
(2) thermit is placed in the reaction chamber of the sample melting device of described cable shield, and layer adds the powder that ignites a little thereon;
(3) cover cover plate, with burning torch igniting, utilize thermit reaction to make the screen layer in melt chamber sample melting;
(4), after question response terminates cooling, the sample again solidified in melt chamber is taken out;
(5) sample surfaces dirt is fallen with sand papering;
(6) utilize Portable conductivity meter or other potable metal composition detection instrument test sample, judge screen layer material.
2. the in-situ check and test method of a kind of cable shield material according to claim 1, is characterized in that, the sample melting device of described cable shield is by base, and middle base, melts pipe, reaction chamber shell and cover plate composition; Middle base is embedded in the groove of base center upper portion, and fusing pipe is closely embedded in the groove of middle base center of top, and fusing pipe inside is melt chamber; Have the reaction chamber shell being wrapped in middle base around middle base, reaction chamber shell is arranged on base, and cover plate is arranged at the top of reaction chamber shell.
3. the in-situ check and test method of a kind of cable shield material according to claim 2, is characterized in that, described base, and its material is graphite, and top is fluted closely to be embedded for middle base.
4. the in-situ check and test method of a kind of cable shield material according to claim 2, is characterized in that, described middle base, and its material is high-temperature heat-conductive pottery, and bottom closely can embed base, and top is fluted closely to be embedded for fusing pipe.
5. the in-situ check and test method of a kind of cable shield material according to claim 2, it is characterized in that, described fusing pipe: its material is high-temperature heat-conductive pottery, for hollow tubular, bottom closely can embed middle base, top closely can embed cover plate, and inside is melt chamber, and sample is in this fusing and solidify.
6. the in-situ check and test method of a kind of cable shield material according to claim 2, is characterized in that, described reaction chamber shell, and its material is graphite, and be placed on base, there is cylindrical cavity at middle part; Cavity lower end closely wraps middle base, and cavity upper end closely wraps cover plate base projections, this cavity forming reactions chamber, and thermit provides fusing sample institute heat requirement in this reaction.
7. the in-situ check and test method of a kind of cable shield material according to claim 2, is characterized in that, described cover plate, its material is graphite, is placed on reaction chamber shell, and its base projections closely embeds between fusing pipe and reaction chamber shell, sidepiece leaves lighting-up tuyere, during for igniting.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510355824.5A CN105136530B (en) | 2015-06-25 | 2015-06-25 | A kind of in-situ check and test method of cable shield material |
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| CN201510355824.5A CN105136530B (en) | 2015-06-25 | 2015-06-25 | A kind of in-situ check and test method of cable shield material |
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| CN105136530A true CN105136530A (en) | 2015-12-09 |
| CN105136530B CN105136530B (en) | 2017-10-17 |
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Citations (6)
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|---|---|---|---|---|
| DE1153664B (en) * | 1962-05-03 | 1963-08-29 | Elektro Thermit Gmbh | Method and device for rendering machines, devices and tanks unusable, in particular gun barrels for military purposes |
| JPS6036632A (en) * | 1983-08-09 | 1985-02-25 | Nippon Denko Kk | Production of metallic alloy by thermit method |
| US5062903A (en) * | 1989-09-13 | 1991-11-05 | Erico Products, Inc, | Welding process and mixture of reactants for use in such process |
| CN202329130U (en) * | 2011-11-23 | 2012-07-11 | 天津口岸检测分析开发服务有限公司 | Novel molten sample furnace |
| CN204214712U (en) * | 2014-10-27 | 2015-03-18 | 苏州威奥得焊材科技有限公司 | A kind of sample-melting device of melting spectrum samples |
| CN105086720A (en) * | 2015-07-11 | 2015-11-25 | 合肥正浩机械科技有限公司 | Anticorrosive metal surface treating agent and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6036632B2 (en) * | 2013-10-04 | 2016-11-30 | カシオ計算機株式会社 | Printing plate manufacturing method, printing plate manufacturing apparatus, data generation method, and program |
-
2015
- 2015-06-25 CN CN201510355824.5A patent/CN105136530B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1153664B (en) * | 1962-05-03 | 1963-08-29 | Elektro Thermit Gmbh | Method and device for rendering machines, devices and tanks unusable, in particular gun barrels for military purposes |
| JPS6036632A (en) * | 1983-08-09 | 1985-02-25 | Nippon Denko Kk | Production of metallic alloy by thermit method |
| US5062903A (en) * | 1989-09-13 | 1991-11-05 | Erico Products, Inc, | Welding process and mixture of reactants for use in such process |
| CN202329130U (en) * | 2011-11-23 | 2012-07-11 | 天津口岸检测分析开发服务有限公司 | Novel molten sample furnace |
| CN204214712U (en) * | 2014-10-27 | 2015-03-18 | 苏州威奥得焊材科技有限公司 | A kind of sample-melting device of melting spectrum samples |
| CN105086720A (en) * | 2015-07-11 | 2015-11-25 | 合肥正浩机械科技有限公司 | Anticorrosive metal surface treating agent and preparation method thereof |
Non-Patent Citations (2)
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| 李振伍: ""高频重熔制样法在钢铁样品Ⅹ荧光光谱分析中的应用"", 《冶金分析与测试》 * |
| 蒋文毓 等: ""氩提取系统中的石墨熔样炉"", 《地质科学》 * |
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| CN105136530B (en) | 2017-10-17 |
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