CN102229826A - Metal cutting gas - Google Patents
Metal cutting gas Download PDFInfo
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- CN102229826A CN102229826A CN2011101590163A CN201110159016A CN102229826A CN 102229826 A CN102229826 A CN 102229826A CN 2011101590163 A CN2011101590163 A CN 2011101590163A CN 201110159016 A CN201110159016 A CN 201110159016A CN 102229826 A CN102229826 A CN 102229826A
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Abstract
The invention discloses a metal cutting gas, composed of fuel gas and a synergistic agent, wherein the synergistic agent is composed of aluminium carbide, ferrocene, methyl alcohol and MDPE (medium density polyethylene). The metal cutting gas disclosed by the invention has high combustion temperature and good cutting quality and can be completely combusted in the air, the combustion efficiency of the metal cutting gas in oxygen is higher, the temperature can reach about 3300 DEG C, the cutting accuracy is higher, and the grinding process is reduced, thus the product quality is improved; the environmental pollution is less, and extremely less CO or SO2 is produced, thus pollution is greatly reduced; air sources are wide, the application is safe, and the tempering rate is extremely low when the cutting gas is used, thus being very safe; the cutting gas is lighter than air and can directly enter a room to carry out welding and cutting; and the application scope is wide, the selection range of the fuel gas in the cutting gas is wide, and the requirement to the purity of each fuel gas is low.
Description
Technical field
The present invention relates to a kind of metal cutting gas.
Background technology
At present, the main combustion gas of metal welding is oxygen-acetylene gas.It promptly makes a great contribution to industrial progress and technological innovation at the beginning of using.But because acetylene gas is inflammable and explosive, safety coefficient is low, the power consumption of consuming energy in the production process, and contaminate environment, production cost is higher.So in production, storage, transportation, use, environmental protection and have many defectives and hidden danger in price, development being subjected to very big restriction.Therefore the cutting that some acetylene gass occurred substitutes gas, as " Sweet natural gas ", " propylene gas ", " liquefied petroleum gas (LPG) " or the like.But these alternative bodies and acetylene gas more or less exist defectives such as cutting temperature deficiency, cutting quality is relatively poor, burning is insufficient by comparison.
Summary of the invention
The technical problem to be solved in the present invention is a metal cutting lancing temperature deficiency, cutting quality is relatively poor, burning is insufficient, and a kind of metal cutting gas is provided, and its cutting temperature is not less than traditional acetylene gas, cutting quality is good, and wide material sources, cost of manufacture is cheap, uses very safe.
The technical solution adopted in the present invention is: a kind of metal cutting gas, form by combustion gas and synergistic agent, described synergistic agent is by aluminium carbide, ferrocene, methyl alcohol and MDPE(medium-density polyethylene) form.
The mass percent that described synergistic agent accounts for combustion gas is 0.5 ~ 2%.
The mass percent that described synergistic agent accounts for combustion gas is 1.5%.
Each composition quality degree in the described synergistic agent is: aluminium carbide 10 ~ 20%, ferrocene 25 ~ 40%, methyl alcohol 15 ~ 25%, all the other are MDPE.
Each composition quality degree in the described synergistic agent is: aluminium carbide 15%, ferrocene 30%, methyl alcohol 20%, MDPE 35%.
Described combustion gas is at least a in Sweet natural gas, coal-seam gas, artificial coal gas, propane, civil liquefied gas, the acetylene gas.
Described combustion gas can be two or three in Sweet natural gas, coal-seam gas, artificial coal gas, propane, civil liquefied gas, the acetylene gas or four kind of acceptable combination.So-called acceptable combination refers to the mixed gas that can use simultaneously of the two or more formation in the combustion gas, such as, coal-seam gas and gas component are approaching, can mix use.
Aluminium carbide, ferrocene, methyl alcohol, MDPE are mixed in encloses container, charge into combustion gas then, room temperature leaves standstill can be used in 1 ~ 2 hour.
Acetylene gas can widely used reason be: though the combustion heat value of acetylene gas has only 1200.4kj/mol, but water-content is relatively low in the generation thing after perfect combustion, the required thermal losses of water vapour is less, therefore can access higher temperature during acetylene combustion, generally reach as high as about 3100 ℃.Such temperature has guaranteed that it can be widely used in gas cutting, gas welding.
Sweet natural gas, coal-seam gas, artificial coal gas, propane, civil liquefied gas etc. as the subject matter of the existence of the alternative gas of acetylene are: it is more or burn insufficient to produce moisture during burning, can't obtain enough cutting temperatures, cause the cutting speed in feet per minute deficiency, cutting quality is lower.Produce more SO simultaneously
2Deng obnoxious flavour.
By in combustion gas, adding synergistic agent, because the synergistic agent composition is the high energy combustiblesubstance, can with Sweet natural gas, coal-seam gas, artificial coal gas, propane, in the civil liquefied gas such as the good combination of methane equimolecular, dissolving, and be not subjected to water molecules, nitrogen molecule, the equimolecular influence of hydrogen sulfide (is fully dissolved such as Sweet natural gas molecule and synergistic agent molecule, pass through chemical absorption, chemisorption combines) thus the burning of gas calorific value promoted, and gas is carried out effective catalysis, improved the gaseous combustion environment, remedied water, the heat of material consumptions such as nitrogen, thus in the oxygen-enriched combusting process, increase substantially the gas flame temperature.
The invention has the beneficial effects as follows: the temperature of combustion height, cutting quality is good, and it burns very complete in air, and incendiary efficient is higher in oxygen, and temperature can reach about 3300 ℃, and cutting accuracy is higher, has reduced the polishing operation, has improved quality product; Production cost is low, because the combustion gas wide material sources, price is lower, causes Cutting Gas can reduce more than 60% than the acetylene gas production cost; Contaminate environment is little, CO, SO
2Produce seldom Deng gas, greatly reduce and pollute; The source of the gas source is wide, used several combustion gas, and wide material sources, particularly coal-seam gas, reserves are abundant, and utility value is high; Safe in utilization, the tempering rate was extremely low, as safe as a house when Cutting Gas was used, and Cutting Gas proportion lighter than air, directly carried out the welding operation in the inlet chamber; Applied widely, the combustion gas range of choice in the Cutting Gas is wide, and not high to the purity requirement of every kind of combustion gas.
Embodiment
Embodiment 1
A kind of metal cutting gas, composed as follows: 1000KG coal-seam gas, synergistic agent quality are 5 KG, wherein aluminium carbide 0.5 KG, ferrocene 1.25 KG, methyl alcohol 0.75 KG, MDPE2.5 KG.
Aluminium carbide, ferrocene, methyl alcohol, MDPE are mixed in encloses container, charge into coal-seam gas then, room temperature leaves standstill can be used in 1 ~ 2 hour.
Embodiment 2
A kind of metal cutting gas, composed as follows: 1000KG Sweet natural gas, synergistic agent quality are 20 KG, wherein, aluminium carbide 4 KG, ferrocene 8KG, methyl alcohol 5 KG, MDPE 3KG.
Aluminium carbide, ferrocene, methyl alcohol, MDPE are mixed in encloses container, charge into Sweet natural gas then, room temperature leaves standstill can be used in 1 ~ 2 hour.
Embodiment 3
A kind of metal cutting gas, composed as follows: 1000KG artificial coal gas, synergistic agent quality are 15 KG, wherein, aluminium carbide 2.25KG, ferrocene 4.5KG, methyl alcohol 3KG, MDPE 5.25KG.
Aluminium carbide, ferrocene, methyl alcohol, MDPE are mixed in encloses container, charge into artificial coal gas then, room temperature leaves standstill can be used in 1 ~ 2 hour.
Embodiment 4
A kind of metal cutting gas, composed as follows: 1000KG propane, synergistic agent quality are 15 KG, wherein, aluminium carbide 2.25KG, ferrocene 4.5KG, methyl alcohol 3KG, MDPE 5.25KG.
Embodiment 5
A kind of metal cutting gas, composed as follows: 1000KG civil liquefied gas, synergistic agent quality are 15 KG, wherein, aluminium carbide 2.25KG, ferrocene 4.5KG, methyl alcohol 3KG, MDPE 5.25KG.
Embodiment 6
A kind of metal cutting gas, composed as follows: the mixed gas of 500KG Sweet natural gas and 500KG coal-seam gas, synergistic agent quality are 15 KG, wherein, aluminium carbide 2.25KG, ferrocene 4.5KG, methyl alcohol 3KG, MDPE 5.25KG.
The test data contrast of the embodiment of the invention and acetylene gas sees Table 1.
The test data of table 1 embodiment of the invention and acetylene gas
| Embodiment | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| The pre-time (s) of punching | 16~21 | 18~22 | 17~21 | 19~25 |
| Cutting speed in feet per minute (mm/min) | 305~310 | 306~315 | 303~309 | 295~305 |
| Gaseous-pressure MPa | 0.035 | 0.035 | 0.035 | 0.035 |
| Oxygen pressure MPa | 0.6 | 0.7 | 0.6 | 0.6 |
| Cutting torch and workpiece are apart from mm | 7~10 | 6~9 | 8~11 | 7~11 |
| Preheating flame | Oxydizing flame | Oxydizing flame | Oxydizing flame | Oxydizing flame |
| Embodiment | Embodiment 5 | Embodiment 6 | Acetylene gas |
| The pre-time (s) of punching | 27~30 | 16~22 | 26~28 |
| Cutting speed in feet per minute (mm/min) | 290~305 | 305~310 | 290~305 |
| Gaseous-pressure MPa | 0.035 | 0.035 | 0.035 |
| Oxygen pressure MPa | 0.7 | 0.6 | 0.8 |
| Cutting torch and workpiece are apart from mm | 8~11 | 7~9 | 14~18 |
| Preheating flame | Oxydizing flame | Oxydizing flame | Neutral flame |
Embodiment 7
A kind of metal cutting gas, composed as follows: 1000KG Sweet natural gas, synergistic agent quality are 10 KG, wherein, aluminium carbide 1 KG, ferrocene 4KG, methyl alcohol 2.5KG, MDPE 2.5KG.
Embodiment 8
A kind of metal cutting gas, composed as follows: 1000KG coal-seam gas, synergistic agent quality are 8 KG, wherein, aluminium carbide 1.6KG, ferrocene 3.2KG, methyl alcohol 1.2KG, MDPE 2KG.
Embodiment 9
A kind of metal cutting gas, composed as follows: 1000KG artificial coal gas, synergistic agent quality are 12 KG, wherein, aluminium carbide 2.4 KG, ferrocene 3 KG, methyl alcohol 3KG, MDPE 3.6KG.
Embodiment 10
A kind of metal cutting gas, composed as follows: 1000KG civil liquefied gas, synergistic agent quality are 18 KG, wherein, aluminium carbide 1.8KG, ferrocene 4.5KG, methyl alcohol 2.7KG, MDPE 9KG.
Embodiment 11
A kind of metal cutting gas, composed as follows: 1000KG propane, synergistic agent quality are 20 KG, wherein, aluminium carbide 3KG, ferrocene 6KG, methyl alcohol 4KG, MDPE 7KG.
Embodiment 12
A kind of metal cutting gas, composed as follows: 1000KG Sweet natural gas, synergistic agent quality are 5 KG, wherein, aluminium carbide 0.75KG, ferrocene 1.5KG, methyl alcohol 1KG, MDPE 1.75KG.
Claims (6)
1. a metal cutting gas is made up of combustion gas and synergistic agent, it is characterized in that: described synergistic agent is made up of aluminium carbide, ferrocene, methyl alcohol and MDPE.
2. metal cutting gas according to claim 1 is characterized in that: the mass percent that described synergistic agent accounts for combustion gas is 0.5 ~ 2%.
3. metal cutting gas according to claim 2 is characterized in that: the mass percent that described synergistic agent accounts for combustion gas is 1.5%.
4. according to each described metal cutting gas of claim 1-3, it is characterized in that: each the composition quality degree in the described synergistic agent is: aluminium carbide 10 ~ 20%, ferrocene 25 ~ 40%, methyl alcohol 15 ~ 25%, MDPE15 ~ 50%.
5. metal cutting gas according to claim 4 is characterized in that: each the composition quality degree in the described synergistic agent is: aluminium carbide 15%, ferrocene 30%, methyl alcohol 20%, MDPE 35%.
6. metal cutting gas according to claim 1 is characterized in that: described combustion gas is at least a in Sweet natural gas, coal-seam gas, artificial coal gas, propane, civil liquefied gas, the acetylene gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101590163A CN102229826A (en) | 2011-06-14 | 2011-06-14 | Metal cutting gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101590163A CN102229826A (en) | 2011-06-14 | 2011-06-14 | Metal cutting gas |
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| CN102229826A true CN102229826A (en) | 2011-11-02 |
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| CN2011101590163A Pending CN102229826A (en) | 2011-06-14 | 2011-06-14 | Metal cutting gas |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102876414A (en) * | 2012-10-16 | 2013-01-16 | 陈衍芽 | Preparation process for synergistic industrial biogas |
| WO2019114184A1 (en) * | 2017-12-13 | 2019-06-20 | 代纪东 | Effect-increasing and energy-saving cutting method for continuous casting steel blank |
-
2011
- 2011-06-14 CN CN2011101590163A patent/CN102229826A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102876414A (en) * | 2012-10-16 | 2013-01-16 | 陈衍芽 | Preparation process for synergistic industrial biogas |
| WO2019114184A1 (en) * | 2017-12-13 | 2019-06-20 | 代纪东 | Effect-increasing and energy-saving cutting method for continuous casting steel blank |
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Application publication date: 20111102 |