CN2210395Y - Device for determining diffusive hydrogen when metal deposition - Google Patents
Device for determining diffusive hydrogen when metal deposition Download PDFInfo
- Publication number
- CN2210395Y CN2210395Y CN 94222889 CN94222889U CN2210395Y CN 2210395 Y CN2210395 Y CN 2210395Y CN 94222889 CN94222889 CN 94222889 CN 94222889 U CN94222889 U CN 94222889U CN 2210395 Y CN2210395 Y CN 2210395Y
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- hydrogen
- test specimen
- sampler
- measuring device
- diffusive
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Abstract
The utility model discloses the measuring device of the diffusive hydrogen in the deposition metal, which belongs to the field that the materials are tested through measuring the physical property of the materials. The measuring device of the diffusive hydrogen in the deposition metal is mainly suitable for the measurement of the diffusible hydrogen in the weld metal. The measuring device of the diffusive hydrogen in the deposition metal is composed of a sampling device and a dedicated gas chromatography meter; the sampling device is also composed of a conversion valve, a test specimen cylinder, and a handle; the sampling device is provided with five test specimen cylinders, wherein, one test specimen tube is not provided with the test specimen cylinder of the 'blank' sample of the diffusible hydrogen, and the test specimen cylinder is provided with the injection head of the hydrogen gas. The measuring device of the diffusive hydrogen in the deposition metal can eliminate the difference of the gas path at the time of timing and analysis; the test error is reduced, and the accuracy is increased.
Description
The utility model belongs to the field of coming test material by the physical property of measuring material.Mainly be applicable to the mensuration of diffusible hydrogen in the weld metal.
Glycerine method and mercury process are adopted in the diffusible hydrogen method for measuring more in the existing deposit metal.The accuracy that the glycerine method is measured for low hydrogen is relatively poor, and mercury process pollutes environment and poisons the operator because of using poisonous mercury.Method with diffusible hydrogen in the gas chromatography determination deposit metal has appearred in recent years.This method piece that tests the speed, sensitivity and precision height, and can get rid of owing to air is sneaked into the interference that causes, measurement result is accurately and reliably.In addition, the gc analysis scope is very wide, all is suitable for to high hydrogen from ultralow hydrogen, does not also have any contaminated environment and the material that influences operator's health.
The G1006 type diffusible hydrogen analyzer of Japan and GS1006 type sampler thereof are exactly to measure the instrument of diffusible hydrogen in the deposit metal.The sampler of this instrument is four test specimen tubes, does not establish the correction tube that can annotate calibrating gas, makes that correction and analysis condition are not quite identical, cause producing certain error, and the test specification of instrument is difficult for measuring and checking (YANACO ［ H ］
DAnalyser G1006 type and the explanation of sampler GS1006 type).
The purpose of this utility model is to provide diffusible hydrogen determinator in a kind of deposit metal that can detect by national standard method.
Deposit metal diffusible hydrogen determinator described in the utility model is made up of sampler and special-purpose gas chromatograph.
Sampler is made up of cross-over valve and test specimen tube.Test specimen tube has five, is connected with passage is arranged between the cross-over valve.Cross-over valve can link to each other five test specimen tubes respectively with gas chromatograph, but any one position location of cross-over valve all can only communicate a test specimen tube with gas chromatograph.
Gas chromatograph is to aim at the gas chromatograph of measuring diffusible hydrogen and designing.There are two joints to be used for linking to each other on the instrument with sampler.But every chromatograph adapted overlaps sampler more.
Compared with prior art, major advantage of the present utility model is that sampler includes five test specimen tubes, and wherein, four test specimen tubes are used to the sample to be tested of packing into, and the 5th test specimen tube is used as the carrier gas passage of gas chromatograph; Put into a sample (" blank " sample) that does not discharge diffusible hydrogen in this.Test is preceding passes through to proofread and correct valve to chromatograph test macro injection pure hydrogen, and this correcting gas is proofreaied and correct instrument through the blank sample tube, has so just eliminated the gas circuit difference of instrument when timing and analysis, has reduced test error, has improved accuracy.This also is major advantage of the present utility model and characteristics.
Now the utility model is described in further detail in conjunction with the accompanying drawings.
Accompanying drawing 1 is the theory structure synoptic diagram of diffusible hydrogen determinator in the utility model deposit metal.
Accompanying drawing 2 is the structural representation of sampler.
Among above-mentioned Fig. 1,1,3 is reduction valve, and 2 is pressure maintaining valve, 4,12 is stop valve, and 5 for proofreading and correct valve, and 6 is tensimeter, 7 is needle-valve, and 8 is sampler, and 9 is exsiccator, 10 is molecular sieve column, and 11 is conductance cell, and 13 is flowmeter, 14,15 is joint, and 16 is argon bottle, and 17 is hydrogen cylinder, 18 is data processing unit, and 19 is digital voltmeter, and 20 is mini-printer.Above-mentioned parts is formed gas chromatograph.
Among Fig. 2,21 for to be the handle of sampler 8, and 22 is the cross-over valve of sampler 8, and 23 is the test specimen tube of sampler 8, and 24 is the hydrogen injector head of sampler 8.
Sampler 8 links to each other by joint 14,15 with gas chromatograph.By cross-over valve 22 any and gas chromatograph are joined, survey the diffusible hydrogen amount of sample in its test specimen tube.In five test specimen tubes 23, four test specimen tubes are used to adorn the weld seam test plate (panel); The 5th test specimen tube is used to adorn does not have " blank " of diffusible hydrogen sample, claims the blank sample tube, which is provided with the calibrating gas injector head, in order to check the chromatographic detection range of linearity.
The course of work of the present utility model is as follows:
Be carried out in accordance with regulations specimen preparation earlier, getting four samples to be tested is respectively charged in four test specimen tubes, with the air in the argon replaces test specimen tube, and make it to put into after airtight constant temperature oven, under 45 ℃ of temperature of regulation, be incubated 48 hours or 72 hours, make that the diffusible hydrogen in the weld metal is discharged in the test specimen tube on the test plate (panel), then sampler 8 is received on the gas chromatograph by joint 14,15.This chromatograph is carrier gas with the argon gas, by molecular sieve column 10 divided gas flow components, makes hydrogen enter conductance cell 11, measure the amount of hydrogen, the signal of hydrogen is handled by data processing unit 18, demonstrates the diffusible hydrogen amount by digital voltmeter 19, and is got by printer 20.
Claims (2)
1, diffusible hydrogen determinator in a kind of deposit metal, form by sampler and special-purpose gas chromatograph, sampler (8) is made up of cross-over valve (22), handle (21) and test specimen tube (23) again, it is characterized in that sampler contains five test specimen tubes (23), one of them test specimen tube is the blank sample tube that dress does not have " blank " sample of diffusible hydrogen.
2, device according to claim 1 is characterized in that being provided with hydrogen injector head (24) on the blank sample tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94222889 CN2210395Y (en) | 1994-10-08 | 1994-10-08 | Device for determining diffusive hydrogen when metal deposition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94222889 CN2210395Y (en) | 1994-10-08 | 1994-10-08 | Device for determining diffusive hydrogen when metal deposition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2210395Y true CN2210395Y (en) | 1995-10-18 |
Family
ID=33836768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94222889 Expired - Lifetime CN2210395Y (en) | 1994-10-08 | 1994-10-08 | Device for determining diffusive hydrogen when metal deposition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2210395Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1324313C (en) * | 2002-05-03 | 2007-07-04 | 格斯特尔系统技术两合公司 | Sample treatment device for analysis apparatus |
| CN101551259B (en) * | 2009-05-19 | 2010-12-08 | 天津大学 | Sealing device, measuring system and method for measuring the diffused hydrogen in weld workpiece |
| CN105319112A (en) * | 2015-12-01 | 2016-02-10 | 天津师范大学 | Method and device for analyzing hydrogen and diffusible hydrogen |
| CN112326664A (en) * | 2020-09-27 | 2021-02-05 | 浙江安胜科技股份有限公司 | Automatic quality control method for heat-insulating container |
-
1994
- 1994-10-08 CN CN 94222889 patent/CN2210395Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1324313C (en) * | 2002-05-03 | 2007-07-04 | 格斯特尔系统技术两合公司 | Sample treatment device for analysis apparatus |
| CN101551259B (en) * | 2009-05-19 | 2010-12-08 | 天津大学 | Sealing device, measuring system and method for measuring the diffused hydrogen in weld workpiece |
| CN105319112A (en) * | 2015-12-01 | 2016-02-10 | 天津师范大学 | Method and device for analyzing hydrogen and diffusible hydrogen |
| CN112326664A (en) * | 2020-09-27 | 2021-02-05 | 浙江安胜科技股份有限公司 | Automatic quality control method for heat-insulating container |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |