CN100451426C - Low-carbon steel heating wire PE electric melting pipe fittings - Google Patents
Low-carbon steel heating wire PE electric melting pipe fittings Download PDFInfo
- Publication number
- CN100451426C CN100451426C CNB2007100982838A CN200710098283A CN100451426C CN 100451426 C CN100451426 C CN 100451426C CN B2007100982838 A CNB2007100982838 A CN B2007100982838A CN 200710098283 A CN200710098283 A CN 200710098283A CN 100451426 C CN100451426 C CN 100451426C
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- pipe
- electric melting
- heating wire
- carbon steel
- sittings
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- Branch Pipes, Bends, And The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of low carbon steel heater PE electric melting pipe fittings which includes a PE pipe fittings and a heater compounding in the wall of PE pipe sittings which are two parallel low carbon steel heaters. The heater described above after over-plastic directly circles homogeneously and compounds in the wall of PE pipe sittings by annealing soften, surface burnish, multiple layers coppering corrosion protection, oxidation resistant treatment, and over-plastic treatment and the over-plastic adopts the way of making the two heaters paralleled over-plastic. When using the PE electric melting pipe sittings to connect the PE pipe implant the PE pipe into the PE electric melting pipe sittings and then use the electric melting pipe soldering machine to cut-in electricity for the two-pole of heater winding and make the low carbon steel heater generated heat by the current and then melt the PE pipe and the contact surface plastic of PE electric melting pipe sittings then solvate and solder the PE pipe and the PE electric melting sittings. The invention using in soldering the PE pipe has the low cost and high soldering mission success rate merits and saves the electrical power.
Description
Technical field
The present invention relates to a kind of low-carbon steel heating wire PE electric melting pipe fittings.
Background technique
In recent years, weldable (welding) property that polyethylene (PE) pipeline is good because it is unique, (hot melt butt joint, electric smelting connection) easy to connect, splitting resistance, environmental protection, health, recyclable or the like excellent characteristics, and become the optimal selection of city gas line network, mesolow water supply network, obtained high speed development in China.Along with popularizing that the PE pressure piping is used, the PE electric melting pipe fittings is with its easy construction, and welding reliably obtains using very widely, and particularly the gas field is used and popularized, and also begins extensive use in the water supply field.
The PE electric melting pipe fittings is used to connect the PE pipe, the heating wire of existing P E electric melting pipe fittings all is to use the sub-thread red copper wire to cross to mould the back evenly winding combined to pipe fitting, during welding PE pipe, the PE pipe is inserted in the PE electric melting pipe fittings, with welding equipment copper cash is switched on, under big electric current, utilize the heating fusing PE of copper cash to manage and PE electric melting pipe fittings surface of contact plastics, reach PE and manage the purpose of welding with the fusion of PE pipe fitting.
The shortcoming of prior art is:
1, the copper cash cost is too high, and specification is that 1 square millimeter red copper wire existing market valency is 7.6 ten thousand yuan/ton, is 8.6 ten thousand yuan/ton when the highest, and cost price was about 100,000 yuan/ton after the mistake that is processed into direct use was moulded line; Cause the copper heating wire in whole pipe fitting, to account for the 10-15% of overall cost, PE electric melting pipe fittings cost of production is increased, and because heating wire is an expendable consumed product, pipeline can not recycling in service life.
2, red copper wire is crossed be moulded single line, because winding turns is many, spacing is less between winding, plastics be heated melt after, the copper cash warpage, move and all may cause turn-to-turn short circuit, and red copper wire elongation percentage under hot environment is bigger, after the buckling deformation, be easy to adjacent winding contact in the heating process, cause short circuit, cause whole pipe welding failure, increased the unsuccessful rate of welding widely.
3, the tensile strength of red copper wire is at 200-220N, and copper cash is easily broken in process of production, in case again the fracture then cause product directly to be scrapped.
4, the current-carrying of red copper wire own is bigger, produce in energising under the condition of same heat, use the single line winding of 1 square millimeter red copper wire will reach the electric current that welding requirements need welding machine provides 40A, just can reach heating effect, increase the production difficulty of welding equipment, also wasted electric energy.Power consumption is higher.
Summary of the invention
The technical issues that need to address of the present invention just are to overcome the defective of prior art, and a kind of low-carbon steel heating wire PE electric melting pipe fittings is provided.
For addressing the above problem, the present invention adopts following technological scheme:
A kind of low-carbon steel heating wire PE electric melting pipe fittings of the present invention, comprise PE pipe fitting and the heating wire that is compounded in the PE pipe fitting inner wall, described heating wire is two low carbon steel heating wires arranged side by side, described heating wire is through annealing softening, surface finish, multilayer copper facing corrosion protection, anti-oxidant treatment and mould processing excessively, moulds back two heating wires arranged side by side excessively and directly evenly is around in and is compound in the PE pipe fitting inner wall.
Heating wire section area of the present invention is the 0.5-5 square millimeter.
The step that mistake of the present invention is moulded processing is: outside two heating wires arranged side by side evenly parcel 2-5 millimeters thick, with the identical plastics of described PE pipe fitting.
When connecting the PE pipe with PE electric melting pipe fittings of the present invention, the PE pipe is inserted in the PE electric melting pipe fittings, use electric smelting pipe welding machine, make the heating of low carbon steel heating wire with electric current to the energising of heating wire winding the two poles of the earth, fusing PE pipe and PE electric melting pipe fittings surface of contact plastics make PE pipe and PE electric melting pipe fittings fuse welding.The present invention is used to weld that PE when pipe cost is low, to be welded into power high and saved electric energy.
The invention has the advantages that:
1, reduces the cost of production of electric melting pipe fittings, compare the saving cost with copper cash and reach more than 70%.The mild steel wire existing market valency of 1 square millimeter of specification is up to 4500 yuan/ton, is processed into behind the heating wire cost price and uses the low carbon steel heating wire in 10,000/ton, and heating wire only accounts for overall cost in whole pipe 1-2% almost can ignore.Reduced cost widely.
2, use mild steel wire to cross and be moulded two-wire, because two-wire winding arranged side by side, the double-wound transformer number of same width lacks one times than single line, mild steel wire good thermal stability in addition, the elongation percentage that is heated under same temperature is low than copper cash, and evidence can effectively reduce short circuit probability more than 80%, has improved to be welded into power and welding useful area, reduce the welding difficulty, especially be more suitable for large and medium-sized pipe fitting production.
3, the tensile strength of mild steel wire is at 250-330N, and easy-rupturing has not further reduced the production difficulty aborning, has guaranteed the success rate of production.
4, use the two-wire winding of 1 square millimeter mild steel wire, reach welding requirements only needs welding machine that 23A is provided electric current, therefore uses the low carbon steel heating wire can reduce the requirement of welding machine output current, has reduced the production difficulty of welding machine to a certain extent.Simultaneously, also because of the low carbon steel heating wire has high, the fast advantage of heating, also to a certain extent than red copper heating wire saving power.
Embodiment
A kind of low-carbon steel heating wire PE electric melting pipe fittings of the present invention, comprise PE pipe fitting and the heating wire that is compounded in the PE pipe fitting inner wall, described heating wire is two low carbon steel heating wires arranged side by side, described heating wire is through annealing softening, surface finish, multilayer copper facing corrosion protection, anti-oxidant treatment and mould processing excessively, moulds back two heating wires arranged side by side excessively and directly evenly is around in and is compound in the PE pipe fitting inner wall.
Heating wire section area of the present invention is the 0.5-5 square millimeter.
The step that mistake of the present invention is moulded processing is: outside two heating wires arranged side by side evenly parcel 2-5 millimeters thick, with the identical plastics of described PE pipe fitting.
When connecting the PE pipe with PE electric melting pipe fittings of the present invention, the PE pipe is inserted in the PE electric melting pipe fittings, use electric smelting pipe welding machine, make the heating of low carbon steel heating wire with electric current to the energising of heating wire winding the two poles of the earth, fusing PE pipe and PE electric melting pipe fittings surface of contact plastics make PE pipe and PE electric melting pipe fittings fuse welding.The present invention is used to weld that PE when pipe cost is low, to be welded into power high and saved electric energy.
Annealing softening of the present invention, surface finish, multilayer copper facing corrosion protection, anti-oxidant treatment step are prior art.
The invention has the advantages that:
1, reduces the cost of production of electric melting pipe fittings, compare the saving cost with copper cash and reach more than 70%.The mild steel wire existing market valency of 1 square millimeter of specification is up to 4500 yuan/ton, is processed into behind the heating wire cost price and uses the low carbon steel heating wire in 10,000/ton, and heating wire only accounts for overall cost in whole pipe fitting 1-2% almost can ignore.Reduced cost widely.
2, use mild steel wire to cross and be moulded two-wire, because two-wire winding arranged side by side, the double-wound transformer number of same width lacks one times than single line, mild steel wire good thermal stability in addition, the elongation percentage that is heated under same temperature is low than copper cash, and evidence can effectively reduce short circuit probability more than 80%, has improved to be welded into power and welding useful area, reduce the welding difficulty, especially be more suitable for large and medium-sized pipe production.
3, the tensile strength of mild steel wire is at 250-330N, and easy-rupturing has not further reduced the production difficulty aborning, has guaranteed the success rate of production.
4, use the two-wire winding of 1 square millimeter mild steel wire, reach welding requirements only needs welding machine that 23A is provided electric current, therefore uses the low carbon steel heating wire can reduce the requirement of welding machine output current, has reduced the production difficulty of welding machine to a certain extent.Simultaneously, also because of the low carbon steel heating wire has high, the fast advantage of heating, also to a certain extent than red copper heating wire saving power.
The present invention is not limited to above-mentioned preferred forms, and other any identical with the present invention or akin products that anyone draws under enlightenment of the present invention all drop within protection scope of the present invention.
Claims (1)
1, a kind of low-carbon steel heating wire PE electric melting pipe fittings, comprise PE pipe fitting and the heating wire that is compounded in the PE pipe fitting inner wall, described heating wire is two low carbon steel heating wires arranged side by side, described heating wire is through annealing softening, surface finish, multilayer copper facing corrosion protection, anti-oxidant treatment is moulded processing with crossing, cross mould the back two heating wires arranged side by side directly evenly be around in and be compound in the PE pipe fitting inner wall, it is characterized in that: described heating wire section area is the 0.5-5 square millimeter, and described mistake is moulded processing and evenly wrap up the 2-5 millimeters thick outside two heating wires arranged side by side, with the identical plastics of described PE pipe fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100982838A CN100451426C (en) | 2007-04-25 | 2007-04-25 | Low-carbon steel heating wire PE electric melting pipe fittings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100982838A CN100451426C (en) | 2007-04-25 | 2007-04-25 | Low-carbon steel heating wire PE electric melting pipe fittings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101033820A CN101033820A (en) | 2007-09-12 |
| CN100451426C true CN100451426C (en) | 2009-01-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100982838A Expired - Fee Related CN100451426C (en) | 2007-04-25 | 2007-04-25 | Low-carbon steel heating wire PE electric melting pipe fittings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100451426C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806839A (en) * | 2015-04-28 | 2015-07-29 | 成都市团结模具制造厂 | Low carbon steel heating wire PE (polyethylene) electric melt pipe fitting |
| CN111536363B (en) * | 2020-05-12 | 2022-04-01 | 天津市艺智汇科技发展有限公司 | Process for repairing lining of drainage pipeline through quick hot melting |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4436988A (en) * | 1982-03-01 | 1984-03-13 | R & G Sloane Mfg. Co., Inc. | Spiral bifilar welding sleeve |
| CN1030887A (en) * | 1988-07-23 | 1989-02-08 | 深圳鑫海实业有限公司 | Thermal resistant hot-welding thermoplastics's method |
| WO1997010463A1 (en) * | 1995-09-13 | 1997-03-20 | Fusion Group Plc | Electrofusion couplers |
| CN1061293C (en) * | 1995-09-20 | 2001-01-31 | 普拉森马根迈克尔工业有限公司 | Electrofusion method and device |
| CN2575405Y (en) * | 2002-05-31 | 2003-09-24 | 天津市华意保温制品有限公司 | Device for covering leaks & doweling in pipe |
| CN2727532Y (en) * | 2004-08-23 | 2005-09-21 | 天津市光亚商贸有限公司 | Electrothermal molten coupler cover for insulating tube |
| CN2769659Y (en) * | 2004-12-02 | 2006-04-05 | 天津市河西区平江电热电器厂 | Electric heating fusion welding sealing plastic pipe joint |
-
2007
- 2007-04-25 CN CNB2007100982838A patent/CN100451426C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4436988A (en) * | 1982-03-01 | 1984-03-13 | R & G Sloane Mfg. Co., Inc. | Spiral bifilar welding sleeve |
| CN1030887A (en) * | 1988-07-23 | 1989-02-08 | 深圳鑫海实业有限公司 | Thermal resistant hot-welding thermoplastics's method |
| WO1997010463A1 (en) * | 1995-09-13 | 1997-03-20 | Fusion Group Plc | Electrofusion couplers |
| CN1061293C (en) * | 1995-09-20 | 2001-01-31 | 普拉森马根迈克尔工业有限公司 | Electrofusion method and device |
| CN2575405Y (en) * | 2002-05-31 | 2003-09-24 | 天津市华意保温制品有限公司 | Device for covering leaks & doweling in pipe |
| CN2727532Y (en) * | 2004-08-23 | 2005-09-21 | 天津市光亚商贸有限公司 | Electrothermal molten coupler cover for insulating tube |
| CN2769659Y (en) * | 2004-12-02 | 2006-04-05 | 天津市河西区平江电热电器厂 | Electric heating fusion welding sealing plastic pipe joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101033820A (en) | 2007-09-12 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Chengdu Unity Mold Factory Assignor: Zhong Shiquan Contract record no.: 2011510000315 Denomination of invention: Low-carbon steel heating wire PE electric melting pipe fittings Granted publication date: 20090114 License type: Exclusive License Open date: 20070912 Record date: 20111125 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090114 Termination date: 20190425 |
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| CF01 | Termination of patent right due to non-payment of annual fee |