CN2107972U - Electrode for high frequency resistance welding of fin tube - Google Patents
Electrode for high frequency resistance welding of fin tube Download PDFInfo
- Publication number
- CN2107972U CN2107972U CN 91227788 CN91227788U CN2107972U CN 2107972 U CN2107972 U CN 2107972U CN 91227788 CN91227788 CN 91227788 CN 91227788 U CN91227788 U CN 91227788U CN 2107972 U CN2107972 U CN 2107972U
- Authority
- CN
- China
- Prior art keywords
- electrode
- frequency resistance
- resistance welding
- high frequency
- contact
- 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.)
- Granted
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Abstract
The utility model relates to an electrode for high frequency resistance welding of fin tubes, belonging to the electrode for high-frequency resistance welding. The electrode is composed of an upper electrode and a lower electrode. The electrode is characterized in that the upper and lower electrodes adopt a circular arc-shaped structure corresponding to the outer diameter of a welded steel tube. Thus, the proximity effect and the skin effect of high-frequency current can be fully utilized to heat the steel tube to make the allocation of high frequency resistance heat more reasonable, and the welding quality is favorable.
Description
The utility model relates to a kind of high-frequency resistance welding (HFRW) finned tube electrode.
The high-frequency resistance welding (HFRW) finned tube belongs to the high-frequency pressure weldering of unequal section, and the thermal capacity of welded part (steel pipe, steel disc) and the aggregative relative value of the capacity of heat transmission are about more than tens times.The top electrode contact of traditional conductive electrode contacts with the steel disc lower surface, and the bottom electrode contact contacts with the top of steel pipe.The kelvin effect of utilizing high frequency electric reduces the impedance of load circuit with the lower surface of steel disc and the surface to be welded heating of steel pipe as far as possible, improves the power utilization rate.But, have following some deficiency.
1, the unreasonable distribution of high-frequency electrical thermal resistance, steel disc is overheated, and upsetting force does not add, and steel pipe is underheat then;
2, welding process poor stability is more obvious when if the glacing flatness of steel pipe can not reach requirement;
3, electrode contact adopts the money base soldering, i.e. the solder of waste costliness, and the utilization rate of contact is also low.
The purpose of this utility model is to improve existing high-frequency resistance welding (HFRW) finned tube electrode.
The utility model is achieved in that electrode is made of top electrode ［ 4 ］ and bottom electrode ［ 7 ］, upper contact head ［ 6 ］ one ends are fixed on the top electrode ［ 4 ］, the other end contacts with steel disc ［ 2 ］, following contact ［ 8 ］ one ends are fixed on the bottom electrode ［ 7 ］, the other end contacts with steel pipe ［ 1 ］, it is characterized in that top electrode ［ 4 ］, bottom electrode ［ 7 ］ are circular shape, with corresponding by the welding steel external diameter of pipe.Upper contact head, following contact are screwed on electrode.
The utility model has following characteristics:
1, upper contact head contact point and pad close together, in the welding process, heating steel disc open-assembly time in atmosphere is short, and oxidation is lighter, helps welding;
2, down contact contacts with the steel pipe bottom, and steel pipe and electrode gap between from the contact point to the pad are very little, and the kindred effect and the kelvin effect that make full use of high frequency electric heat steel pipe, make the distribution of high-frequency electrical thermal resistance more reasonable, and welding quality is good;
3, contact adopts screw in compression, can in time adjust after the wearing and tearing, has removed soldering processing from, saves valuable solder, and the utilization rate of contact is brought up to about 70% from about 10% of soldering;
4, in the welding process, the conductiving point invariant position of contact, easier realization automation control, welding process is stable, has significantly reduced service working time.
Accompanying drawing 1 assembles schematic diagram for the high-frequency resistance welding (HFRW) finned tube with electrode, and ［ 1 ］ to be steel pipe, ［ 2 ］ be down contact for upper contact head, ［ 7 ］ for bottom electrode, ［ 8 ］ for housing screw, ［ 6 ］ for top electrode, ［ 5 ］ for format roll, ［ 4 ］ for steel disc, ［ 3 ］.The position of two electrodes as shown in the figure, about the gap 1mm of steel pipe and electrode, electrode water cooling, electrode and contact are made with red copper and copper alloy.
Claims (2)
1, a kind of high-frequency resistance welding (HFRW) finned tube electrode, constitute by top electrode [4] and bottom electrode [7], upper contact head [6] one ends are fixed on the top electrode [4], the other end contacts with steel disc [2], following contact [8] one ends are fixed on the electrode [7], the other end contacts with steel pipe [1], it is characterized in that top electrode [4], bottom electrode [7] are circular shape, with corresponding by the welding steel external diameter of pipe.
2, high-frequency resistance welding (HFRW) finned tube electrode according to claim 1 is characterized in that the contact on it has the fixedly screw of usefulness ［ 5 ］.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91227788 CN2107972U (en) | 1991-11-08 | 1991-11-08 | Electrode for high frequency resistance welding of fin tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91227788 CN2107972U (en) | 1991-11-08 | 1991-11-08 | Electrode for high frequency resistance welding of fin tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2107972U true CN2107972U (en) | 1992-06-24 |
Family
ID=4933608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91227788 Granted CN2107972U (en) | 1991-11-08 | 1991-11-08 | Electrode for high frequency resistance welding of fin tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2107972U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100443235C (en) * | 2003-05-30 | 2008-12-17 | 彻姆普拉特原料公司 | Electrode for machine for electromagnetic induction welding of the layers forming a multi-layer printed circuit |
| CN114833433A (en) * | 2022-04-28 | 2022-08-02 | 江苏格兰环境科技有限公司 | Steel-aluminum finned tube and high-frequency resistance welding method thereof |
-
1991
- 1991-11-08 CN CN 91227788 patent/CN2107972U/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100443235C (en) * | 2003-05-30 | 2008-12-17 | 彻姆普拉特原料公司 | Electrode for machine for electromagnetic induction welding of the layers forming a multi-layer printed circuit |
| CN114833433A (en) * | 2022-04-28 | 2022-08-02 | 江苏格兰环境科技有限公司 | Steel-aluminum finned tube and high-frequency resistance welding method thereof |
| CN114833433B (en) * | 2022-04-28 | 2024-04-16 | 江苏格兰环境科技有限公司 | Steel-aluminum finned tube and high-frequency resistance welding method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |