CN1177669C - Heat releasing welding flux - Google Patents
Heat releasing welding flux Download PDFInfo
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- CN1177669C CN1177669C CNB011035404A CN01103540A CN1177669C CN 1177669 C CN1177669 C CN 1177669C CN B011035404 A CNB011035404 A CN B011035404A CN 01103540 A CN01103540 A CN 01103540A CN 1177669 C CN1177669 C CN 1177669C
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Abstract
The present invention provides heat releasing welding flux used for welding metal, which is fundamentally composed of the following components with the shares by weight: 100 shares of cupric oxide (A) with 40 meshes to 100 meshes, 10 shares to 50 shares of aluminium powder (B) with 100 meshes to 200 meshes, 1 share to 10 shares of silicon dioxide (C) and 4 shares to 22 shares of magnesium oxide or/ and calcium fluoride (D), wherein the oxidation rate of the cupric oxide is from 20% to 80%. The heat releasing reaction of the welding flux and the temperature for reducing to molten metal after the reaction are adjusted by controlling the granularity and the oxidation rate of the cupric oxide, so the heat-releasing reaction is fully played. The end head of a weldment is melted at the high temperature of 2500 to 3400 DEG C by the present invention to finish fusion welding, so the joint of the weldment has a molecule structure, and the welding quality is ensured.
Description
Technical field
The present invention relates to a kind of exothermic welding flux of weld metal.
Background technology
Usually, metal solder all needs external power supply or fuel gas, and like this, operation is very inconvenient in the open air, in the high mountain, big seagoing vessel.Therefore, be in this environment, now modes such as bolt, periphery pressurization, crimping that adopt connect more.But this connected mode joint is aging fast, and special earth mat for cable laying, power plant of transformer station lays, the ground connection of skyscraper is accidents caused easily.A kind of exothermic welding flux was also once arranged before the present invention, as publication number be CN1069215A, open day be February 24 in 1993 day, be called the Chinese patent application of " a kind of be used for solder flux and the detonator that copper connects the thermit welding that connects line ", it utilizes exothermic reaction to weld as thermal source, overcome above-mentioned shortcoming, but this solder flux is in order to cool off the control exothermic reaction, in prescription, added pure copper powder, so just influenced the temperature of the molten metal that exothermic reaction produced, make the metal melting welding be affected, the weldment quality can not get guaranteeing.
Summary of the invention
Technical problem to be solved by this invention provides a kind ofly can give full play to exothermic reaction, thereby guarantees the exothermic welding flux of weldment quality.For this reason, the present invention is by the following technical solutions: it basic composition is:
A) oxygenation efficiency 20%～80%, 40 orders～100 purpose cupric oxide are 100 parts,
B) 100 orders～200 purpose aluminium powders are 10 parts-50 parts,
C) silica 1 part～10 part,
D) magnesia is or/and 4 parts～22 parts in calcirm-fluoride
Above umber by weight.
Above-mentioned magnesia and calcirm-fluoride add fashionable simultaneously, and preferred version is 2 parts-11 parts in magnesia, 2 parts-11 parts in calcirm-fluoride.
The present invention utilizes the proportioning of the control granularity of cupric oxide and oxygenation efficiency and component to adjust the molten metal temperature that is reduced into after the exothermic reaction of solder flux and the reaction, give full play to exothermic reaction, utilize the present invention to reach the thawing of weldment termination and finish fusion weld, guarantee welding quality with the high temperature of 2500-3400 degree.Utilize the present invention to weld, solder joint can not produce corrosion and loose; Owing to be to merge joint, there is not contact surface not have residual stress between weldment; The present invention is applied to cable conductor, can not be subjected to the damage of high surge current, and under the impact of big electric current in short-term, conductor melts prior to joint, has bigger area of dissipation simultaneously, and the live ability equates with conductor, is a kind ofly need not keep in repair nonvolatil plumb joint.The present invention also can make welding jig light, need not the professional is any can operate per capita, be particularly suitable for special occasions such as field and use, be a kind of economy, convenience, reliable in quality, widely used exothermic welding flux.
Summary of the invention
| Embodiment 1 | Embodiment 2 | Embodiment 3 | |
| Cupric oxide | 70 orders, oxygenation efficiency 60%70 grams | 90 orders, oxygenation efficiency 72% 88 grams | 80 orders, oxygenation efficiency 77% 73 grams |
| Aluminium powder | 160 orders, 18 grams | 170 orders, 24 grams | 180 orders, 10 grams |
| Silica | 5 grams | 7.2 gram | 6.5 gram |
| Magnesia | 4 grams | 6 grams | —— |
| Calcirm-fluoride | 7 grams | 1.8 gram | 3.7 gram |
| Embodiment 4 | Embodiment 5 | Embodiment 6 | |
| Cupric oxide | 50 orders, oxygenation efficiency | 55 orders, oxygenation efficiency 45% | 75 orders, oxygenation efficiency 33% |
| 50%52 grams | 43 grams | 47 grams | |
| Aluminium powder | 140 orders, 10 grams | 150 orders, 20 grams | 110 orders, 20 grams |
| Silica | 4 grams | 2.4 gram | 2 grams |
| Magnesia | 7.3 gram | —— | 2.8 gram |
| Calcirm-fluoride | —— | 8.2 gram | 2.8 gram |
| Embodiment 7 | Embodiment 8 | Embodiment 9 | |
| Cupric oxide | 45 orders, oxygenation efficiency 23%85 grams | 95 orders, oxygenation efficiency 27% 82 grams | 60 orders, oxygenation efficiency 40% 77 grams |
| Aluminium powder | 120 orders, 19 grams | 130 orders, 32 grams | 140 orders, 13 grams |
| Silica | 3.2 gram | 2.8 gram | 4.5 gram |
| Magnesia | 18 grams | 13 grams | 4.5 gram |
| Calcirm-fluoride | —— | —— | 5.4 gram |
| Embodiment 10 | Embodiment 11 | Embodiment 12 | |
| Cupric oxide | 65 orders, oxygenation efficiency 65%55 grams | 70 orders, oxygenation efficiency 55% 60 grams | 85 orders, oxygenation efficiency 65% 63 grams |
| Aluminium powder | 150 orders, 19 grams | 160 orders, 18 grams | 170 orders, 7 grams |
| Silica | 2.5 gram | 3.5 gram | 1.2 gram |
| Magnesia | —— | 3 grams | —— |
| Calcirm-fluoride | 9 grams | 6 grams | 6.3 gram |
| Embodiment 13 | Embodiment 14 | Embodiment 15 | |
| Cupric oxide | 95 orders, oxygenation efficiency 42%67 grams | 60 orders, oxygenation efficiency 57% 72 grams | 80 orders, oxygenation efficiency 63% 79 grams |
| Aluminium powder | 190 orders, 17 grams | 130 orders, 21 grams | 170 orders, 13 grams |
| Silica | 4.5 gram | 3 grams | 5 grams |
| Magnesia | 5 grams | 7 grams | 2.7 gram |
| Calcirm-fluoride | 5 grams | —— | 2 grams |
Above example composition all mixes with commonsense method and forms, and can realize the object of the invention.
Claims (2)
1, exothermic welding flux is characterized in that it basic composition is:
A) oxygenation efficiency 20%-80%, 40 orders-100 purpose cupric oxide are 100 parts,
B) 100 orders-200 purpose aluminium powder is 10 parts-50 parts,
C) silica 1 part-10 part,
D) magnesia is or/and 4 parts-22 parts in calcirm-fluoride,
Above umber by weight.
2, exothermic welding flux as claimed in claim 1 is characterized in that 4 parts-22 parts in described magnesia and calcirm-fluoride is meant 2 parts-11 parts in magnesia, 2 parts-11 parts in calcirm-fluoride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011035404A CN1177669C (en) | 2001-02-28 | 2001-02-28 | Heat releasing welding flux |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011035404A CN1177669C (en) | 2001-02-28 | 2001-02-28 | Heat releasing welding flux |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1371781A CN1371781A (en) | 2002-10-02 |
| CN1177669C true CN1177669C (en) | 2004-12-01 |
Family
ID=4653306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011035404A Expired - Fee Related CN1177669C (en) | 2001-02-28 | 2001-02-28 | Heat releasing welding flux |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1177669C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101412167B (en) * | 2008-11-28 | 2011-01-26 | 中国电力科学研究院 | Thermofusion welding agent for welding copper covered steel grounded screen |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6939413B2 (en) | 2003-03-24 | 2005-09-06 | Lincoln Global, Inc. | Flux binder system |
| CN1295055C (en) * | 2004-02-13 | 2007-01-17 | 成都桑莱特科技开发有限公司 | Thermal-melting welding flux igniting material and its constructred heat generation melt welding flux |
| CN100423879C (en) * | 2005-03-25 | 2008-10-08 | 何迎春 | Welding agent and manufacturing process thereof |
| CN100519051C (en) * | 2007-08-16 | 2009-07-29 | 黄丽丽 | Hot melt welding agent |
| CN101745756B (en) * | 2009-12-18 | 2012-08-22 | 西安杰邦科技有限公司 | Molecular environment-friendly heat-release welding agent applicable to welding of copper conductor |
| CN102554458B (en) * | 2010-06-21 | 2013-12-04 | 西安理工大学 | Method and welding material for rapid welding repair of large ZG20 cast steel defects |
| CN101886276B (en) * | 2010-07-27 | 2012-11-28 | 石佐 | Transition method and transition joint between polar plate and copper conducting beam |
| CN102581511A (en) * | 2012-02-29 | 2012-07-18 | 盐城市雷斯达电器设备有限公司 | Thermo-fusion welding powder |
| CN103071919B (en) * | 2012-12-27 | 2015-09-09 | 新昌县人通电力技术有限公司 | A kind of metal fusion welding welding method |
| CN103071948B (en) * | 2012-12-27 | 2015-04-29 | 新昌县人通电力技术有限公司 | Lead-free heat release welding flux |
| CN103071949A (en) * | 2013-02-26 | 2013-05-01 | 武汉大学 | Self-propagating welding powder |
| CN103433646B (en) * | 2013-09-06 | 2016-02-03 | 云南宇恬防雷材料有限公司 | A kind of new-type heat-melting welding material and preparation method thereof |
| CN104107990A (en) * | 2014-06-23 | 2014-10-22 | 江苏安荣电气设备有限公司 | Heat releasing welding powder formula |
| CN108311813A (en) * | 2017-01-17 | 2018-07-24 | 广州市雷斯盾电气科技发展有限公司 | A kind of exothermic welding flux of welding metal, preparation and welding method |
-
2001
- 2001-02-28 CN CNB011035404A patent/CN1177669C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101412167B (en) * | 2008-11-28 | 2011-01-26 | 中国电力科学研究院 | Thermofusion welding agent for welding copper covered steel grounded screen |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1371781A (en) | 2002-10-02 |
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