CN108032041A - A kind of production method of water heater liner stack shell - Google Patents
A kind of production method of water heater liner stack shell Download PDFInfo
- Publication number
- CN108032041A CN108032041A CN201711285549.XA CN201711285549A CN108032041A CN 108032041 A CN108032041 A CN 108032041A CN 201711285549 A CN201711285549 A CN 201711285549A CN 108032041 A CN108032041 A CN 108032041A
- Authority
- CN
- China
- Prior art keywords
- stack shell
- water heater
- production method
- welding
- heater liner
- 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
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- 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
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
-
- 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
- B23K9/235—Preliminary treatment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Arc Welding In General (AREA)
Abstract
The present invention discloses a kind of production method of water heater liner stack shell, and the stack shell is formed using the curling of SUS444 stainless steel materials, forms a cylinder；Then the two opposite edges that will wind up rear plate again weld to form stack shell；The welding includes the following steps：First soak cleaning is carried out to rolling two of rear plate opposite edges；Cylinder after will wind up again is fixed on gauge, makes two opposite edge docking of above-mentioned plate；Then argon arc welding welding is carried out using ER316L welding wires in joint.This method uses ER316L welding wires, is closer to SUS444 material compositions, can effectively improve the resistance to corrosion of weld seam, prevents weld seam leak.
Description
Technical field
The present invention relates to a kind of production method of water heater liner stack shell, belong to technical field of water heaters.
Background technology
The material that general water heater uses is that carbon steel adds enamel to handle liner, and additional anodic magnesium rod is arranged as anti-corrosion protection
Apply, the principle of anodic magnesium rod is to supplement substantial amounts of electronics to need metal to be protected, makes to be protected metal generally in electronics mistake
Surplus state makes metal surface each point reach same negative potential.
Magnesium rod largely reduces the corrosion of water heater liner, but magnesium rod also brings the defects of a large amount of：Magnesium
An extension of the rod as sacrificial anode, its service life are limited；Installing, magnesium rod have to liner and heating tube into
Row insulation processing, installation check are replaced inconvenient；To liner heating tube overprotection；The other impurities of magnesium rod alloy are easily formed very
More floating materials, block nozzle, influence to use.
For this reason, patent《A kind of water heater liner》(the patent No.：201220350502.3) a kind of water heater liner is provided,
Use SUS444 stainless steel inner containers instead, itself has very strong resistance to corrosion, without magnesium rod, checks and replaces conveniently.But
SUS444 stainless steels are higher to welding process requirement, leak, electrochemical corrosion etc. easily occur.
The content of the invention
The technical problem to be solved in the present invention is：Existing SUS444 stainless steel inner containers welding difficulty is high, easily occur leak,
The problems such as weld corrosion.
To solve technical problem, there is provided a kind of production method of water heater liner stack shell, reduces welding difficulty, weld seam resists
The advantages that corrosive power is strong, antileaking.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of production method of water heater liner stack shell, the stack shell are formed using the curling of SUS444 stainless steel materials, shape
Into a cylinder；Then the two opposite edges that will wind up rear plate again weld to form stack shell；The welding includes as follows
Step：First soak cleaning is carried out to rolling two of rear plate opposite edges；Cylinder after will wind up again is fixed on gauge,
Make two opposite edge docking of above-mentioned plate；Then argon arc welding welding is carried out using ER316L welding wires in joint.
Preferably, the tungsten electrode that the argon arc welding uses is WC20 Φ 3.2mm.
Preferably, the current polarity of the argon arc welding welding uses DC reverse connection, and current strength is in 195~245A scopes
It is interior.
Preferably, the thickness of the stainless steel materials is 2.5mm, and the current strength is in the range of 195~205A.
Preferably, the thickness of the stainless steel materials is 3.0mm, and the current strength is in the range of 235~245A.
Preferably, a diameter of 1.2mm of the ER316L welding wires, speed of welding is in the range of 1.6~2.5mm/s, wire feed
Speed is in 15~30mm/s.
Preferably, the thickness of the stainless steel materials is 2.5mm, and the wire feed rate is in 15~25mm/s.
Preferably, the thickness of the stainless steel materials is in 3.0mm, and the wire feed rate is in 20~30mm/s.
Preferably, the arc protecting atmosphere of the argon arc welding uses 99.99% argon gas, and gas flow is in 8~10L/
min；Root protective gas uses 99.99% argon gas, and gas flow is in 3~5L/min.
The beneficial effects of the invention are as follows：Using ER316L welding wires, it is closer to SUS444 material compositions, weldering can be effectively improved
The resistance to corrosion of seam, prevents weld seam leak.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the SUS444 stainless steel materials schematic diagrames for making liner stack shell；
Fig. 2 is rolled up the cylinder schematic diagram come；
Fig. 3 is rolled up rear cylinder two edges docking schematic diagram；
Fig. 4 is stack shell weld structure diagram；
Fig. 5 is the liner stack shell schematic diagram to complete.
Reference numeral：10 ＇, SUS444 stainless steel materials；10th, cylinder；11st, first edge；12nd, second edge；20th, weld
Point.
Embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows composition related to the present invention.
One embodiment of the production method of water heater liner stack shell of the present invention, as shown in Figs. 1-5, in this method, stack shell
Formed using 10 ＇ of SUS444 stainless steel materials curlings, form a cylinder 10；Then two opposite sides of rear plate be will wind up again
Edge：First edge 11 and second edge 12 weld to form stack shell.Above-mentioned welding includes the following steps：First to rolling rear plate
Two opposite edges：First side:11 and second edge 12 carry out soak cleaning；Cylinder 10 after will wind up again, which is fixed on, to be controlled
On tool, make two opposite edge docking of above-mentioned plate；Then argon arc welding welding is carried out using ER316L welding wires in joint.
This method uses ER316L welding wires, is closer to SUS444 material compositions, can effectively improve the resistance to corrosion of weld seam, prevents from welding
Stitch leak.
Preferably, for the tungsten electrode that argon arc welding uses in the embodiment for WC20 Φ 3.2mm, the current polarity of welding uses direct current
Reversal connection, current strength is in the range of 195~245A.
When the thickness T of 10 ＇ of SUS444 stainless steel materials is 2.5mm, current strength is preferably in the range of 195~205A；
When the thickness T of 10 ＇ of SUS444 stainless steel materials is 3.0mm, current strength is preferably in the range of 235~245A.
A diameter of 1.2mm of above-mentioned ER316L welding wires, speed of welding is in the range of 1.6~2.5mm/s, and wire feed rate is 15
~30mm/s.When the thickness T of 10 ＇ of SUS444 stainless steel materials is 2.5mm, wire feed rate is preferably in 15~25mm/s；When
The thickness T of 10 ＇ of SUS444 stainless steel materials is in 3.0mm, and wire feed rate is preferably in 20~30mm/s.
The arc protecting atmosphere of above-mentioned argon arc welding uses 99.99% argon gas, and gas flow is in 8~10L/min；Root is protected
The argon gas that gas uses 99.99% is protected, gas flow is in 3~5L/min.
The present invention uses above-mentioned straight seam welding method for SUS444 stainless steel inner containers so that and commissure welding quality is high,
With stronger resistance to corrosion, weld seam leak can be effectively prevented.
It is complete by above-mentioned description, relevant staff using the above-mentioned desirable embodiment according to the present invention as enlightenment
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property scope is not limited to the content on specification, it is necessary to determines its technical scope according to right.
Claims (9)
- A kind of 1. production method of water heater liner stack shell, it is characterised in that：The stack shell is formed using the curling of SUS444 stainless steel materials, forms a cylinder；Then two of rear plate be will wind up again Opposite edge welds to form stack shell；The welding includes the following steps：First soak cleaning is carried out to rolling two of rear plate opposite edges；It will wind up again Cylinder afterwards is fixed on gauge, makes two opposite edge docking of above-mentioned plate；Then welded in joint using ER316L Silk carries out argon arc welding welding.
- 2. the production method of water heater liner stack shell according to claim 1, it is characterised in that：What the argon arc welding used Tungsten electrode is WC20 Φ 3.2mm.
- 3. the production method of water heater liner stack shell according to claim 2, it is characterised in that：The argon arc welding welding Current polarity uses DC reverse connection, and current strength is in the range of 195~245A.
- 4. the production method of water heater liner stack shell according to claim 3, it is characterised in that：The stainless steel materials Thickness is 2.5mm, and the current strength is in the range of 195~205A.
- 5. the production method of water heater liner stack shell according to claim 3, it is characterised in that：The stainless steel materials Thickness is 3.0mm, and the current strength is in the range of 235~245A.
- 6. the production method of water heater liner stack shell according to claim 1, it is characterised in that：The ER316L welding wires A diameter of 1.2mm, speed of welding is in the range of 1.6~2.5mm/s, and wire feed rate is in 15~30mm/s.
- 7. the production method of water heater liner stack shell according to claim 6, it is characterised in that：The stainless steel materials Thickness is 2.5mm, and the wire feed rate is in 15~25mm/s.
- 8. the production method of water heater liner stack shell according to claim 6, it is characterised in that：The stainless steel materials Thickness is in 3.0mm, and the wire feed rate is in 20~30mm/s.
- 9. the production method of water heater liner stack shell according to claim 1, it is characterised in that：The electric arc of the argon arc welding Protective gas uses 99.99% argon gas, and gas flow is in 8~10L/min；Root protective gas uses 99.99% argon gas, Gas flow is in 3~5L/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711285549.XA CN108032041A (en) | 2017-12-07 | 2017-12-07 | A kind of production method of water heater liner stack shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711285549.XA CN108032041A (en) | 2017-12-07 | 2017-12-07 | A kind of production method of water heater liner stack shell |
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| Publication Number | Publication Date |
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| CN108032041A true CN108032041A (en) | 2018-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711285549.XA Pending CN108032041A (en) | 2017-12-07 | 2017-12-07 | A kind of production method of water heater liner stack shell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111229885A (en) * | 2020-01-17 | 2020-06-05 | 蔡燕 | Automatic rounding, sewing and leakage detecting integrated machine for water tank inner container of solar water heater and process thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748884A (en) * | 2012-07-13 | 2012-10-24 | 四川川能农业开发有限公司 | Manufacturing process for heat preservation water tank of heat collector with high stability |
| CN106583883A (en) * | 2017-01-18 | 2017-04-26 | 新兴能源装备股份有限公司 | Braze-welding method for thin-wall stainless steel leakage holes |
-
2017
- 2017-12-07 CN CN201711285549.XA patent/CN108032041A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748884A (en) * | 2012-07-13 | 2012-10-24 | 四川川能农业开发有限公司 | Manufacturing process for heat preservation water tank of heat collector with high stability |
| CN106583883A (en) * | 2017-01-18 | 2017-04-26 | 新兴能源装备股份有限公司 | Braze-welding method for thin-wall stainless steel leakage holes |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111229885A (en) * | 2020-01-17 | 2020-06-05 | 蔡燕 | Automatic rounding, sewing and leakage detecting integrated machine for water tank inner container of solar water heater and process thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180515 |
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| RJ01 | Rejection of invention patent application after publication |