CN1117416A - Technological process for joining copper and aluminium by smelting and casting method - Google Patents
Technological process for joining copper and aluminium by smelting and casting method Download PDFInfo
- Publication number
- CN1117416A CN1117416A CN 94111129 CN94111129A CN1117416A CN 1117416 A CN1117416 A CN 1117416A CN 94111129 CN94111129 CN 94111129 CN 94111129 A CN94111129 A CN 94111129A CN 1117416 A CN1117416 A CN 1117416A
- Authority
- CN
- China
- Prior art keywords
- aluminium
- copper
- copper material
- smelting
- technological process
- Prior art date
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Links
Abstract
The joining process includes acid washing, rinsing, soaking in assistant, roasting, smelting and casting. It overcomes the difficulty of firmly welding together copper material and aluminium material. When applying in Cu-Al joining for electrode of zinc electrolysis tank, the method can reduce the voltage used in electrolysis and reduce DC power consumption by 10 kW.h/ton of segregated zinc.
Description
The present invention relates to a kind of with metal copper material and aluminium founding method together.
The negative electrode conductive head of splicing processes zinc electrolysis is by copperhead (calling copper material in the following text), and being connected as a single entity with negative electrode conduction aluminium bar (calling aluminium in the following text) forms, but the routine of copper and aluminium welding difficulty.Though adopt high frequency copper, aluminium can be welded together to welding technology, also aluminium can be welded to each other with conventional method, but between the copper, aluminium, the mutual weld seam of aluminium can increase the interior resistance of conductive head, thereby the tank voltage of process in zinc electrolyzing is risen, and power consumption increases; And the complex process of welding, cost height.
The object of the present invention is to provide a kind of fusion casting to connect the technology of copper aluminium,, reach purpose of energy saving to eliminate the drawback that welding brings.
The invention is characterized in copper material is used aqueous solution of nitric acid pickling 0.5-1 minute, the clear water rinsing of copper material after the pickling, again the copper material after the rinsing is put into and given the chemical assistant for preparing earlier and soaked for 3-10 seconds, copper material after soaking placed give heat to 200 ℃ Muffle furnace constant temperature 10-30 minutes, then copper material and aluminium are put into together and given heat to 200 ℃ pig mold, again 750-800 ℃ melting aluminum is poured into pig mold, the demoulding after＜500 ℃ to be cooled.
Technology of the present invention, two of its feature are that described aqueous solution of nitric acid is industrial nitric acid, and its volume ratio is HNO
3: H
2O=1: 2.
Technology of the present invention, three of its feature are that described chemical assistant is by ZnCl
2, NaCl, SnCl
2, NH
4HF
2Form with water, its weight proportion is to add ZnCl in per 1000 gram water
250-100 grams, NaCl5-20 gram, SnCl
21-5 grams, NH
4Cl1-5 gram, NH
4HF
21-10 grams.
Four of the feature of technology of the present invention is that the method for manufacturing chemistry auxiliary agent is with ZnCl
2, NaCl, SnCl
2, NH
4Cl, NH
4HF
2Be added in the water, stir, fully dissolving.
Concrete technological process of the present invention is as follows:
Copperhead pickling → clear water rinsing → auxiliary agent immersion → baking → dress mould → founding → cooling → demoulding.
Fusion casting of the present invention connects the copper aluminium material process to be compared with the method that original welding is connected copper, aluminium, has following advantage:
1, through pickling of the present invention, copper material after operations such as auxiliary agent immersion and baking are handled, energy and aluminium link together securely, and resistance increases in the weldering body of having avoided causing because of multiple-pass weld in original technology, has satisfied the requirement of splicing processes process in zinc electrolyzing target conductive head.
2, the voltage drop of conductive head drops to present (fusion casting) 0.43mv by the 2.73mv of original (welding), and tank voltage reduces 12mv, and direct current consumption reduces 10KW.h/t and separates out zinc.
3, the cost of conductive head drops to present 4 yuan/by original 12 yuan/.
Implement sharp 1
Copper material is put into HNO
3: H
2O=1: 2 and pickle in 0.5 minute, then copper material is proposed to use the clear water rinsing, place chemical assistant to soak for 3 seconds again after drying clear water, put into after the proposition and give heat to 200 ℃ Muffle furnace constant temperature 10 minutes, again copper material and aluminium are put into together and given heat to 200 ℃ pig mold, 750 ℃ melting aluminum is poured into pig mold, the demoulding during to 450 ℃ to be cooled.
Embodiment 2
Operating procedure and embodiment 1 are same, but the chemical assistant soak time is 10 seconds, and constant temperature time is 30 minutes in 200 ℃ Muffle furnace, and the fusion temperature in the burned pig mold is 800 ℃, and calcining temperature is 400 ℃.
Embodiment 3
The chemical assistant weight proportion is ZnCl
280 grams, NaCl10 gram, SnCl
22 grams, NH
4The HF25 gram, NH
4The Cl1 gram, H
2The O1000 gram, each chemical reagent adds in the entry, stirs, and it is dissolved fully.
Claims (4)
1, technological process for joining copper and aluminium by smelting and casting, it is characterized in that: copper material is used aqueous solution of nitric acid pickling 0.5-1 minute, the clear water rinsing of copper material after the pickling, again the copper material after the rinsing is put into and given the chemical assistant for preparing earlier and soaked for 3-10 seconds, copper material after soaking placed give heat to 200 ℃ Muffle furnace constant temperature 10-30 minutes, then copper material and aluminium are put into together and given heat to 200 ℃ pig mold, again 750-800 ℃ melting aluminum is poured into pig mold, the demoulding after＜500 ℃ to be cooled.
2, connect the technology of copper aluminium according to the described fusion casting of claim 1, it is characterized in that described aqueous solution of nitric acid is industrial nitric acid, its volume ratio is HNO
3: H
2O=1: 2
3, technological process for joining copper and aluminium by smelting and casting according to claim 1 is characterized in that described chemical assistant is by ZnCl
2, NaCl, SnCl
2, NH
4Cl, NH
4HF
2Form with water, its proportional quantity is to add ZnCl in per 1000 gram water
250-100 grams, NaCl5-20 gram, SnCl
21-5 grams, NH
4C1-5 gram, NH
4HF
21-10 grams.
4, technological process for joining copper and aluminium by smelting and casting according to claim 1 is characterized in that the method for the manufacturing of described chemical assistant is: with ZnCl
2, NaCl, SnCl
2, NH
4HF
2Be added in the water, stir, fully dissolving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94111129 CN1117416A (en) | 1994-08-25 | 1994-08-25 | Technological process for joining copper and aluminium by smelting and casting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94111129 CN1117416A (en) | 1994-08-25 | 1994-08-25 | Technological process for joining copper and aluminium by smelting and casting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1117416A true CN1117416A (en) | 1996-02-28 |
Family
ID=5035029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94111129 Pending CN1117416A (en) | 1994-08-25 | 1994-08-25 | Technological process for joining copper and aluminium by smelting and casting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1117416A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100354061C (en) * | 2005-12-16 | 2007-12-12 | 中国铝业股份有限公司 | Fusion casting and welding method for aluminum parent metal |
| CN101491828B (en) * | 2009-02-26 | 2011-06-01 | 刘旭刚 | Copper steel fusion-casting welding technique |
| CN102154662A (en) * | 2011-03-11 | 2011-08-17 | 沈阳凯斯圣实验室设备环保工程有限公司 | Aluminum calendering plate and plate beam casting type cathode plate |
| CN102904077A (en) * | 2012-09-05 | 2013-01-30 | 海安县能达电气有限公司 | Copper-aluminum transition joint |
| CN103386477A (en) * | 2013-07-25 | 2013-11-13 | 江西铜业股份有限公司 | Babbitt metal casting solvent, preparation method and Babbitt metal casting method |
| CN104690255A (en) * | 2015-02-14 | 2015-06-10 | 山西华圣铝业有限公司 | Method for repairing electrolysis cell aluminum bus without power cut under high-intensity magnetic field environment |
| CN106435653A (en) * | 2016-11-24 | 2017-02-22 | 昆明冶金研究院 | Preparation method of copper-aluminum conductive transition part for zinc electro-deposition industry |
| CN106735098A (en) * | 2016-12-12 | 2017-05-31 | 晋宁理工恒达科技有限公司 | A kind of copper aluminium die casting compound polar plate conductive head and preparation method thereof |
-
1994
- 1994-08-25 CN CN 94111129 patent/CN1117416A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100354061C (en) * | 2005-12-16 | 2007-12-12 | 中国铝业股份有限公司 | Fusion casting and welding method for aluminum parent metal |
| CN101491828B (en) * | 2009-02-26 | 2011-06-01 | 刘旭刚 | Copper steel fusion-casting welding technique |
| CN102154662A (en) * | 2011-03-11 | 2011-08-17 | 沈阳凯斯圣实验室设备环保工程有限公司 | Aluminum calendering plate and plate beam casting type cathode plate |
| CN102154662B (en) * | 2011-03-11 | 2013-04-03 | 沈阳凯斯圣电解设备环保工程有限公司 | Aluminum calendering plate and plate beam casting type cathode plate |
| CN102904077A (en) * | 2012-09-05 | 2013-01-30 | 海安县能达电气有限公司 | Copper-aluminum transition joint |
| CN103386477A (en) * | 2013-07-25 | 2013-11-13 | 江西铜业股份有限公司 | Babbitt metal casting solvent, preparation method and Babbitt metal casting method |
| CN104690255A (en) * | 2015-02-14 | 2015-06-10 | 山西华圣铝业有限公司 | Method for repairing electrolysis cell aluminum bus without power cut under high-intensity magnetic field environment |
| CN104690255B (en) * | 2015-02-14 | 2016-08-24 | 山西华圣铝业有限公司 | A kind of aluminium bus of electrolyzer charged restorative procedure under strong magnetic field circumstance |
| CN106435653A (en) * | 2016-11-24 | 2017-02-22 | 昆明冶金研究院 | Preparation method of copper-aluminum conductive transition part for zinc electro-deposition industry |
| CN106435653B (en) * | 2016-11-24 | 2018-09-04 | 昆明冶金研究院 | A kind of Zinc electrolysis commercial bronze aluminium conductive transition part preparation method |
| CN106735098A (en) * | 2016-12-12 | 2017-05-31 | 晋宁理工恒达科技有限公司 | A kind of copper aluminium die casting compound polar plate conductive head and preparation method thereof |
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| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |