CN102049590A - Environmentally-friendly energy-saving metal cutting method - Google Patents
Environmentally-friendly energy-saving metal cutting method Download PDFInfo
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- CN102049590A CN102049590A CN2009100758723A CN200910075872A CN102049590A CN 102049590 A CN102049590 A CN 102049590A CN 2009100758723 A CN2009100758723 A CN 2009100758723A CN 200910075872 A CN200910075872 A CN 200910075872A CN 102049590 A CN102049590 A CN 102049590A
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- switch
- ethyne
- cutting
- oxygen
- metal
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Abstract
The invention discloses an environmentally-friendly and energy-saving cutting method, which comprises the following steps: firstly, slightly turning an ethyne switch of an automatic cutting machine, and turning on a low-pressure oxygen switch to ignite ethyne; secondly, after ethyne burns, regulating to a middle flame to preheat a metal to a burning point; thirdly, turning on a high-pressure oxygen switch and beginning cutting; and finally, quickly turning off the ethyne switch and the low-pressure oxygen switch so as to cut to the end with high-pressure oxygen gas. In the invention, by using the heat of the cut metal and the high conductivity characteristic of the cut metal, oxygen assists burning constantly for preheating, so the metal reaches the burning point quickly and oxygen is converted to liquid oxide which is blown away by high-pressure oxygen. Thus, in the cutting process, the need of ethyne flame for preheating is obviated and cutting is performed by using only oxygen. A large amount of ethyne is saved, operation cost is reduced, safety is improved and environmental-protection effect is enhanced.
Description
Affiliated technical field
The invention belongs to a kind of method for metal working, the concrete cutting method that relates to a kind of metal.
Background technology
In the prior art, be widely used with oxy-acetylene patterning method cutting metal.This method is utilized acetylene gas and oxygen mix burning, produces the high temperature heating of metal, behind ignition temperature point, gives high pressure oxygen with METAL HEATING PROCESS again, and work piece cut is opened.In cutting process, must use oxy arc that metal is constantly carried out preheating.The deficiency of its existence is: acetylene gas cost height, use too much acetylene can cause very big waste; And acetylene environmental pollution in production and use is bigger, has explosion danger under the high temperature, crisis operator life security.
Summary of the invention
The present invention's purpose is to overcome original technical deficiency, and a kind of improved Metal Cutting method is provided, and it uses the acetylene amount few, has reduced pollution, has saved the energy, has reduced use cost.
For reaching above-mentioned purpose, the present invention takes following technical scheme to comprise following step: 1. the acetylene switch of at first opening automatic gas cutting machine is a small amount of, opens the low oxygen switch again, and acetylene ignites; 2. after the burning, be adjusted to medium-sized flame, make metal be preheating to burning point; 3. open the hyperbaric oxygen switch, the cutting beginning; 4. after the cutting beginning, rapidly acetylene switch, low oxygen switch are closed, cut until end by hyperbaric oxygen gas fully.
The present invention takes technique scheme, has following beneficial effect: the heat and the fast characteristic of cutting metal heat conduction of metal when the present invention utilizes cutting, by the constantly combustion-supporting effect of playing preheating of oxygen, make metal reach rapidly burning point and and oxygen generate liquid oxide, blown away by the hyperbaric oxygen air-flow.Like this, in cutting process,, only cut with oxygen just without the acetylene torch preheating.The present invention saves a large amount of acetylene, has reduced running cost, has improved security, has strengthened environment protecting.
The specific embodiment
The invention will be further described below in conjunction with embodiment.
Embodiment
The operation of employing automatic gas cutting machine has three switches: acetylene switch, low oxygen switch, hyperbaric oxygen air cock on the automatic gas cutting machine.During operation, the acetylene switch of at first opening automatic gas cutting machine is a small amount of, opens the low oxygen switch again, and acetylene ignites; After the burning, be adjusted to medium-sized flame, make metal be preheating to burning point; Open the hyperbaric oxygen switch, the cutting beginning; Afterwards, rapidly acetylene switch, low oxygen switch are closed, cut until end by hyperbaric oxygen gas fully.
Claims (1)
1. environmental protection and energy saving Metal Cutting method, it is characterized in that it comprises following step: the acetylene switch of 1) at first opening automatic gas cutting machine is a small amount of, opens the low oxygen switch again, and acetylene ignites; 2) after the burning, be adjusted to medium-sized flame, make metal be preheating to burning point; 3) open the hyperbaric oxygen switch, the cutting beginning; 4) after the cutting beginning, rapidly acetylene switch, low oxygen switch are closed, cut until end by hyperbaric oxygen gas fully.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100758723A CN102049590A (en) | 2009-11-05 | 2009-11-05 | Environmentally-friendly energy-saving metal cutting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100758723A CN102049590A (en) | 2009-11-05 | 2009-11-05 | Environmentally-friendly energy-saving metal cutting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102049590A true CN102049590A (en) | 2011-05-11 |
Family
ID=43954572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100758723A Pending CN102049590A (en) | 2009-11-05 | 2009-11-05 | Environmentally-friendly energy-saving metal cutting method |
Country Status (1)
| Country | Link |
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| CN (1) | CN102049590A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102423824A (en) * | 2011-10-19 | 2012-04-25 | 四川省达州钢铁集团有限责任公司 | Disassembly method of damaged bridge pipe of coke oven |
| CN113000981A (en) * | 2021-02-20 | 2021-06-22 | 广东韶钢松山股份有限公司 | Method for cutting spherical top furnace shell of blast furnace hot blast stove |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2082652U (en) * | 1990-11-28 | 1991-08-14 | 常文庆 | Dual purpose torch for cutting and welding |
| CN1727105A (en) * | 2005-07-13 | 2006-02-01 | 辽宁石油化工大学 | Technical method for cutting metal by using flame of oxygen-ethanol |
| CN101190473A (en) * | 2006-11-21 | 2008-06-04 | 胡保银 | Non ethyne metal cutting method |
-
2009
- 2009-11-05 CN CN2009100758723A patent/CN102049590A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2082652U (en) * | 1990-11-28 | 1991-08-14 | 常文庆 | Dual purpose torch for cutting and welding |
| CN1727105A (en) * | 2005-07-13 | 2006-02-01 | 辽宁石油化工大学 | Technical method for cutting metal by using flame of oxygen-ethanol |
| CN101190473A (en) * | 2006-11-21 | 2008-06-04 | 胡保银 | Non ethyne metal cutting method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102423824A (en) * | 2011-10-19 | 2012-04-25 | 四川省达州钢铁集团有限责任公司 | Disassembly method of damaged bridge pipe of coke oven |
| CN102423824B (en) * | 2011-10-19 | 2013-07-31 | 四川省达州钢铁集团有限责任公司 | Disassembly method of damaged bridge pipe of coke oven |
| CN113000981A (en) * | 2021-02-20 | 2021-06-22 | 广东韶钢松山股份有限公司 | Method for cutting spherical top furnace shell of blast furnace hot blast stove |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110511 |