CN106001874A - Gas supply system with carbon dioxide as welding protective gas - Google Patents
Gas supply system with carbon dioxide as welding protective gas Download PDFInfo
- Publication number
- CN106001874A CN106001874A CN201610456189.4A CN201610456189A CN106001874A CN 106001874 A CN106001874 A CN 106001874A CN 201610456189 A CN201610456189 A CN 201610456189A CN 106001874 A CN106001874 A CN 106001874A
- Authority
- CN
- China
- Prior art keywords
- carbon dioxide
- gas
- supply system
- preheater
- exsiccator
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
- B23K9/325—Devices for supplying or evacuating shielding gas
Abstract
The invention discloses a gas supply system with carbon dioxide as welding protective gas, and solves the problems that a pipe is frozen and blocked due to heat-absorbing gasification of liquid carbon dioxide, carbon dioxide gas is always mixed with vapor, and pores are always formed in welds. The gas supply system comprises a carbon dioxide steel bottle, a preheater and a dryer which are sequentially connected through the gas guide pipe; the gas outlet end of the carbon dioxide steel bottle is connected with the gas inlet end of the preheater; and the gas outlet end of the preheater is connected with the gas inlet end of the dryer. The gas supply system disclosed by the invention has the beneficial effects that the pipe is prevented from being frozen and blocked, and less pores are formed in the welds.
Description
Technical field
The present invention relates to technology welding field, particularly relate to the air supply system using carbon dioxide as welding protection gas.
Background technology
Metal connects the method usually utilizing welding in moulding process, and melting welding is, in welding process, workpiece interface is heated to molten state, is not added with the method that pressure completes welding.During melting welding, two workpiece seams to be welded are added rapidly heat fusing by thermal source, form molten bath.Molten bath moves forward with thermal source, forms continuous weld and be connected in one by two workpiece after cooling.
In fusion process, if air directly contacts with the molten bath of high temperature, the oxygen in air will oxidized metal and various alloying element.Nitrogen in air, water vapour etc. enter molten bath, also can form the defects such as pore, slag inclusion, crackle in subsequent cooling process in weld seam, deteriorate quality and the performance of weld seam.
In order to improve welding quality, people investigated various guard method.Such as; gas shielded arc welding is exactly with the gas-insulated air such as argon, carbon dioxide; not oxidized with electric arc during protection welding; avoid the formation of shortcoming; the most commonly used is carbon dioxide, effective, cheap and be readily available, but due to carbon dioxide as protection gas usually because gas expansion heat absorption causes pipeline to freeze blocking; and carbon dioxide is usually mixed with steam, soldered usually there will be pore.
Summary of the invention
It is an object of the present invention to provide one can prevent pipeline from freezing blocking, reduces soldered and the carbon dioxide air supply system as welding protection gas of pore occurs.
The present invention is achieved through the following technical solutions:
With carbon dioxide as the air supply system of welding protection gas, including the carbon dioxide steel cylinder being sequentially connected with, preheater and exsiccator, the outlet side of described carbon dioxide steel cylinder is connected with the inlet end of described preheater；The outlet side of described preheater is connected with the inlet end of described exsiccator.
Further, to better implement the present invention, following structure it is specifically arranged to: also include that effusion meter, described effusion meter are connected to the outlet side of exsiccator by airway.
Further, to better implement the present invention, following structure it is specifically arranged to: also include that decompressor, described decompressor are connected to the outlet side of exsiccator by airway.
Further, to better implement the present invention, following structure it is specifically arranged to: also include that air valve, described air valve are connected to the outlet side of exsiccator by airway.
Further, to better implement the present invention, it is specifically arranged to following structure: described air valve is electromagnetic gas valve.
Further, to better implement the present invention, it is specifically arranged to following structure: described flow is calculated as digital flowmeter.
The present invention compared with prior art, has the following advantages and beneficial effect:
One, the present invention can heat in steel cylinder the gas of gasification by arranging preheater in the outlet side of carbon dioxide steel cylinder, and heat can supplement what gasification absorbed heat, prevents the heat absorbing surrounding air from causing pipeline to freeze blocking.
Two, the present invention is by being arranged on exsiccator in preheater outlet side, it is possible to removed by the moisture contained in gas, prevents because causing the pore in weld metal because of moisture in welding process.
Three, the air valve that the present invention uses is electromagnetic gas valve, and electricity controls gas derives the when of use more convenient.
Four, the flow that the present invention uses is calculated as digital flowmeter, makes the display of flow more accurate, prevents because gas is too much or the very few impact on welding.
Accompanying drawing explanation
Fig. 1 be the present invention relates to carbon dioxide as the block diagram of the air supply system of welding protection gas.Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment 1
In the present embodiment, as it is shown in figure 1, with carbon dioxide as the air supply system of welding protection gas, including successively with carbon dioxide steel cylinder, preheater and the exsiccator that even airway connects, the outlet side of described carbon dioxide steel cylinder is connected with the inlet end of described preheater；The outlet side of described preheater is connected with the inlet end of described exsiccator.
The operation principle of the present embodiment is as follows: switch on the front opening carbon dioxide steel cylinder of welding, carbon dioxide is become gaseous state by liquid, by the airway connected, pass sequentially through preheater and exsiccator, eventually arriving at the brave part of metal, owing to carbon dioxide gasification can absorb substantial amounts of heat, wherein preheater can heat the gas of gasification in steel cylinder, heat can supplement gasification absorb heat, prevent absorb surrounding air heat cause pipeline freeze blocking；Carbon dioxide usually contains steam, exsiccator, it is possible to removed by the moisture contained in gas simultaneously, prevent because welding process causes the pore in weld metal because of moisture.
Embodiment 2
In the present embodiment, also including that effusion meter, described effusion meter are connected to the outlet side of exsiccator by airway, effusion meter can monitor the gas content of carbon dioxide steel cylinder, reminds and changes in time.
Embodiment 3
In the present embodiment, also include that decompressor, described decompressor are connected to the outlet side of exsiccator by airway, safer the when of in order to operate.
Embodiment 4
In the present embodiment, also including air valve, described air valve is connected to the outlet side of exsiccator by airway, and described air valve is electromagnetic gas valve, is possible to prevent gas leakage, and the setting of electromagnetic gas valve makes more convenient to operate.
Embodiment 6
In the present embodiment, described flow is calculated as digital flowmeter, more accurate when of display flow, prevents accidentalia and changes not in time.
The above, be only presently preferred embodiments of the present invention, and the present invention not does any pro forma restriction, every above example is made according to the technical spirit of the present invention any simple modification, equivalent variations, each fall within protection scope of the present invention.
Claims (6)
1. use carbon dioxide as the air supply system of welding protection gas, it is characterised in that: including carbon dioxide steel cylinder, preheater and the exsiccator being sequentially connected with, the outlet side of described carbon dioxide steel cylinder is connected with the inlet end of described preheater；The outlet side of described preheater is connected with the inlet end of described exsiccator.
Carbon dioxide the most according to claim 1 is as the air supply system of welding protection gas, it is characterised in that: also include that effusion meter, described effusion meter are connected to the outlet side of exsiccator by airway.
Carbon dioxide the most according to claim 1 and 2 is as the air supply system of welding protection gas, it is characterised in that: also include that decompressor, described decompressor are connected to the outlet side of exsiccator by airway.
Carbon dioxide the most according to claim 1 and 2 is as the air supply system of welding protection gas, it is characterised in that: also include that air valve, described air valve are connected to the outlet side of exsiccator by airway.
Carbon dioxide the most according to claim 4 is as the air supply system of welding protection gas, it is characterised in that: described air valve is electromagnetic gas valve.
Carbon dioxide the most according to claim 4 is as the air supply system of welding protection gas, it is characterised in that: described flow is calculated as digital flowmeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610456189.4A CN106001874A (en) | 2016-06-22 | 2016-06-22 | Gas supply system with carbon dioxide as welding protective gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610456189.4A CN106001874A (en) | 2016-06-22 | 2016-06-22 | Gas supply system with carbon dioxide as welding protective gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106001874A true CN106001874A (en) | 2016-10-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610456189.4A Pending CN106001874A (en) | 2016-06-22 | 2016-06-22 | Gas supply system with carbon dioxide as welding protective gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106001874A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111168211A (en) * | 2020-02-24 | 2020-05-19 | 夸夫曼(上海)智能科技发展有限公司 | Intelligent virtual welding training device and method |
-
2016
- 2016-06-22 CN CN201610456189.4A patent/CN106001874A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111168211A (en) * | 2020-02-24 | 2020-05-19 | 夸夫曼(上海)智能科技发展有限公司 | Intelligent virtual welding training device and method |
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