CN201666877U - Device for detecting carbon content of vanadium-nitrogen alloy - Google Patents
Device for detecting carbon content of vanadium-nitrogen alloy Download PDFInfo
- Publication number
- CN201666877U CN201666877U CN201020152605XU CN201020152605U CN201666877U CN 201666877 U CN201666877 U CN 201666877U CN 201020152605X U CN201020152605X U CN 201020152605XU CN 201020152605 U CN201020152605 U CN 201020152605U CN 201666877 U CN201666877 U CN 201666877U
- Authority
- CN
- China
- Prior art keywords
- bottle
- carbon content
- import
- absorber
- detecting
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to a device for detecting carbon content of vanadium-nitrogen alloy, which is characterized in that the detecting device comprises an oxygen bottle (1), a KOH gas washing bottle (3), a concentrated H2SO4 gas washing bottle (4), an alkali asbestos drying tower (5), a horizontal furnace (6), a ceramic boat (7), a ceramic tube (8), a desulphurization device (11), an absorber (12) and a burette (13). The detecting device has the following benefits: compared with the infrared absorption method, the non-water titration method that the detecting device adopts to detect the carbon content has the characteristics that the detecting result has no obvious difference and the relative average deviation is smaller than 0.2%; the detecting device also has the characteristics of small equipment investment, strong interference resisting capability, simple operation, easy observation, accurate analyzing result and wide range of sample detection; in addition, equipment is convenient for reparation when being out of function.
Description
(1) technical field
The utility model relates to a kind of pick-up unit of VN alloy carbon content.
(2) background technology
VN alloy is a kind of novel alloy adjuvant, can substitute the production that vanadium iron is used for micro alloyed steel.Vanadium nitride makes an addition to the comprehensive mechanical performances such as intensity, toughness, ductility and thermal fatigue resistance that can improve steel in the steel, and makes steel have good weldability.Reaching under the same intensity, adding vanadium nitride and save vanadium addition 30-40%, and then reduced cost.
With the building industry is example, and the new grade III steel muscle that uses the VN alloy technology to produce because of its intensity improves, has not only strengthened security, the shock resistance of buildings, but also can be than using two grade reinforcing steels to save 10%～15% steel.Only this item; China is annual just can be less with reinforcing bar about 7,500,000 tons; corresponding about 1,240 ten thousand tons of the iron ore concentrate of exploiting less; save 6,600,000 tons of coals; save 3,300,000 tons of relevant auxiliary materials; simultaneously reduce exhaust gas discharging such as carbon dioxide and sulphuric dioxide in a large number, received the double benefit of resources conservation and environmental protection.
VN alloy can be used for structural steel, tool steel, and pipe line steel is in reinforcing bar and the cast iron.VN alloy is applied to can carry out effective vanadium, nitrogen microalloying simultaneously in the Aldecor, and what promote carbon in the steel, vanadium, nitrogen compound separates out more effective performance sedimentation reinforcement and crystal grain thinning effect.
VN alloy adjuvant the most uses, and its carbon content is had higher requirement.The method of existing mensuration carbon content is to adopt infrared absorption determining.This kind assay method equipment has high input, the cost of determination height; In a single day equipment break down, maintenance difficult.
(3) summary of the invention
The utility model is to overcome above-mentioned deficiency, and it is low, simple to operate to provide a kind of equipment to drop into, the result accurately, the pick-up unit of the VN alloy carbon content being convenient to keep in repair of breaking down.
The purpose of this utility model is achieved in that a kind of detection method of VN alloy carbon content, it is characterized in that: it comprises welding bottle, KOH Drexel bottle, dense H2SO4 Drexel bottle, alkali asbestos drying tower, horizontal chamber furnace (oven), porcelain boat, porcelain tube, desulfurizing device, absorber and buret;
Described porcelain tube is arranged in the horizontal chamber furnace (oven), and described porcelain boat is arranged in the porcelain tube;
Described welding bottle outlet links to each other with KOH Drexel bottle import, described KOH Drexel bottle outlet links to each other with described dense H2SO4 Drexel bottle import, described dense H2SO4 Drexel bottle outlet links to each other with the import of alkali asbestos drying tower, described alkali asbestos drying tower outlet links to each other with the porcelain tube import, described porcelain tube outlet links to each other with the desulfurizing device import, described desulfurizing device outlet links to each other with described absorber import, and described absorber top is provided with buret.
In the utility model, the VN alloy sample will generate mixed gass such as carbon dioxide, sulphuric dioxide after burning in the high temperature oxygen air-flow, the mixed gas desulfurizing device of flowing through, importing contains in the ethanol-monoethanolamine-potassium hydroxide absorbent solution of Thymol phthalein indicator and absorbs, and titration.
The reaction mechanism of the utility model detection method is as follows:
1, in the oxygen treatment processes:
The CO2 that at first will influence the result removes, and its reaction equation is:
CO
2+ 2KOH=K
2CO
3+ H
2O; Carry out dried then.
2, produce CO2, SO in the combustion process
2Mixed gas:
C＋O2＝CO2↑；
MC＋O2＝Mx?Oy＋CO2↑；
S＋O
2＝SO
2↑；
3, by desulfurizing device, remove the SO2 that influences titration results, its reaction is:
SO
2＋MnO
2＝MnSO
4
4, absorb titration:
C
2H
5OH＋KOH＝K
2H
5OH＋H
2O；
C2H5OK＋CO2＝KC2H5CO3；
NH2C2H4OH＋CO2＝HOC2H4NHCOOH；
HOC2H4NHCOOH＋C2H5OH＝HOC2H4NHCOOK＋C2H5OH。
In oxygen treatment processes, remove the CO2 and the water that influence the result; Adopt desulfurizing device, remove the sulfur-containing impurities in the VN alloy sample, antijamming capability is strong, has guaranteed the accuracy of measurement result.
The beneficial effects of the utility model are:
1) adopts Determination of Carbon by Non-Aqueous Titration Method content, compare its measurement result no significant difference, relative average debiation ﹤ 0.2 ﹪ with infrared absorption determining.
2) the equipment input is low, and antijamming capability is strong, and is simple to operate, easily observes, and analysis result is accurate, and equipment breaks down and is convenient to maintenance, and the test sample scope is wide.
(4) description of drawings
Fig. 1 is the pick-up unit synoptic diagram of a kind of VN alloy carbon content of the utility model.
Among the figure:
(5) embodiment
Referring to Fig. 1, the pick-up unit of a kind of VN alloy carbon content of the utility model mainly is made up of welding bottle 1, KOH Drexel bottle 3, dense H2SO4 Drexel bottle 4, alkali asbestos drying tower 5, horizontal chamber furnace (oven) 6, porcelain boat 7, porcelain tube 8, desulfurizing device 11, absorber 12 and buret 13;
Described porcelain tube 8 is arranged in the horizontal chamber furnace (oven) 6, and described porcelain boat 7 is arranged in the porcelain tube 8;
Described welding bottle 1 outlet links to each other with KOH Drexel bottle 3 imports, described KOH Drexel bottle 3 outlets link to each other with described dense H2SO4 Drexel bottle 4 imports, described dense H2SO4 Drexel bottle 4 outlets link to each other with 5 imports of alkali asbestos drying tower, described alkali asbestos drying tower 5 outlets link to each other with porcelain tube 8 imports, described porcelain tube 8 outlets link to each other with desulfurizing device 11 imports, described desulfurizing device 11 outlets link to each other with described absorber 12 imports, and described absorber 12 tops are provided with buret 13;
Described welding bottle 1 is provided with flowmeter 2 with the associated line of KOH Drexel bottle 3;
Described horizontal chamber furnace (oven) 6 is provided with controller 9, adopts 10 heating of platinum rhodium thermocouple in the described horizontal chamber furnace (oven) 6.
Described desulfurizing device 11 is MnO
2Desulfurizing device.
Adopt the detection method of the utility model pick-up unit detection VN alloy carbon content as follows:
Step 1: prepare
Horizontal chamber furnace (oven) 6 furnace temperature are risen to 1200～1300 ℃, splashing into the ethanol-monoethanolamine-potassium hydroxide absorbent solution that contains the Thymol phthalein indicator from buret 13 (is called for short: potassium ethoxide solution) to absorber 12 dividing plates, with high-carbon sample combustion, absorption, the blueness of solution is decorporated in absorber 12, and again titration to light blue (being the terminal point look), stand-by;
Step 2: oxygen treatments applied
Step 3: sample analysis
Take by weighing the VN alloy sample in porcelain boat, and add the cupric oxide flux, place the interior preheating of horizontal chamber furnace (oven) 20～30 seconds; Feed the oxygen after step 2 is handled, the VN alloy sample burns under the oxygen effect, the gas that burning produces is through behind the desulfurizing device, enter in the absorber 12 that step 1 prepares and absorb, treat to begin when the solution blueness will be decorporated in the absorber 12 titration, drip till light blue constant (terminal point look), close the buret stopcock several seconds, see whether the solution in the absorber also fades, as fade, till titration to blueness is not moved back again (terminal point look), close oxygen at last, take out porcelain boat, read the volume V2 that titration consumes;
Step 4: the carbon standard sample is demarcated
Get the carbon standard sample, three methods are demarcated set by step, read the volume V1 that the carbon standard sample consumes;
Step 5: calculate
Be calculated as follows the mass percent of carbon:
C1×V2
V1
In the formula: C1: the percentage composition of carbon standard sample
V1: the volume (ml) that the carbon standard sample consumes
V2: the volume (ml) that sample consumes.
Adopt the utility model Determination of Carbon by Non-Aqueous Titration Method content, compare its measurement result no significant difference, relative average debiation ﹤ 0.2 ﹪ with infrared absorption determining.
Claims (2)
1. the pick-up unit of a VN alloy carbon content, it is characterized in that: it comprises welding bottle (1), KOH Drexel bottle (3), dense H2SO4 Drexel bottle (4), alkali asbestos drying tower (5), horizontal chamber furnace (oven) (6), porcelain boat (7), porcelain tube (8), desulfurizing device (11), absorber (12) and buret (13);
Described porcelain tube (8) is arranged in the horizontal chamber furnace (oven) (6), and described porcelain boat (7) is arranged in the porcelain tube (8);
Described welding bottle (1) outlet links to each other with KOH Drexel bottle (3) import, described KOH Drexel bottle (3) outlet links to each other with described dense H2SO4 Drexel bottle (4) import, described dense H2SO4 Drexel bottle (4) outlet links to each other with alkali asbestos drying tower (5) import, described alkali asbestos drying tower (5) outlet links to each other with porcelain tube (8) import, described porcelain tube (8) outlet links to each other with desulfurizing device (11) import, described desulfurizing device (11) outlet links to each other with described absorber (12) import, and described absorber (12) top is provided with buret (13).
2. the pick-up unit of a kind of VN alloy carbon content according to claim 1 is characterized in that: described desulfurizing device (11) is MnO
2Desulfurizing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020152605XU CN201666877U (en) | 2010-04-08 | 2010-04-08 | Device for detecting carbon content of vanadium-nitrogen alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020152605XU CN201666877U (en) | 2010-04-08 | 2010-04-08 | Device for detecting carbon content of vanadium-nitrogen alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201666877U true CN201666877U (en) | 2010-12-08 |
Family
ID=43267836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020152605XU Expired - Fee Related CN201666877U (en) | 2010-04-08 | 2010-04-08 | Device for detecting carbon content of vanadium-nitrogen alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201666877U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764854A (en) * | 2015-03-20 | 2015-07-08 | 内蒙古包钢钢联股份有限公司 | Apparatus for determining content of carbon in manganese carbon alloy, and method thereof |
| CN106680237A (en) * | 2016-12-12 | 2017-05-17 | 中核北方核燃料元件有限公司 | Determination method for free carbon content in silicon carbide composite material |
-
2010
- 2010-04-08 CN CN201020152605XU patent/CN201666877U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764854A (en) * | 2015-03-20 | 2015-07-08 | 内蒙古包钢钢联股份有限公司 | Apparatus for determining content of carbon in manganese carbon alloy, and method thereof |
| CN106680237A (en) * | 2016-12-12 | 2017-05-17 | 中核北方核燃料元件有限公司 | Determination method for free carbon content in silicon carbide composite material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103529016B (en) | The rapid assay methods of polycomponent content in continuous casting covering slag | |
| CN104483286A (en) | Method for determining contents of carbon and sulfur in iron-containing dust mud | |
| CN102192906A (en) | Device and method for detecting content of carbon in vanadium-nitrogen alloy | |
| CN102466636B (en) | Device for detecting marine volatile sulfur compounds with ultraviolet fluorescence method and manufacture method of device | |
| CN104458637A (en) | Method for testing ultra-low carbon and sulphur content in plain carbon steel-low alloy steel | |
| CN201666877U (en) | Device for detecting carbon content of vanadium-nitrogen alloy | |
| JP5527168B2 (en) | Converter exhaust gas recovery device and converter exhaust gas recovery method | |
| CN105842182A (en) | Method for measuring content of free carbon in covering agent | |
| CN103667740A (en) | Automatic control system for copper converter converting | |
| CN101086477A (en) | Method for determining carbon content of non-ferrous metal smelting material | |
| CN204422494U (en) | A kind of device measuring carbon content in manganese-carbon alloy | |
| CN1869685A (en) | Investigating method for lime activity and its analysing system | |
| CN106185807A (en) | A kind of single column fixed bed hydrogen production of chemical chain pilot-plant and hydrogen production process | |
| CN104876192A (en) | Process for reducing chroma of industrial sulfuric acid by air-hydrogen peroxide combined oxidation method | |
| CN101819121A (en) | Method for testing content of rhodium in concentrated vitriol type rhodium eletroplating solution | |
| CN103667741B (en) | Copper converter converting control system | |
| CN104764854B (en) | Apparatus for determining content of carbon in manganese carbon alloy, and method thereof | |
| CN108872200B (en) | Detection method for sulfur content adsorbed on coke surface | |
| CN201053970Y (en) | Coke reactivity and after-reaction strength detector | |
| CN102721785B (en) | Vessel slag sulphur volumetric determination method | |
| CN103175829A (en) | Rapid analysis method of copper in leachate | |
| CN103487413A (en) | New detection method for volatile sulfides in surface seawater and atmosphere, and application thereof | |
| CN202512014U (en) | Device for measuring and sampling sulfur dioxide in converter for making acid by sulphur | |
| CN206772837U (en) | A kind of Gold Concentrate under Normal Pressure sulphur content determination device | |
| CN204479456U (en) | A kind of infrared carbon sulfur analyzer carbon monoxide absorption cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101208 Termination date: 20180408 |