CN102398022A - Casting method of a magnesium anode for a water heater - Google Patents
Casting method of a magnesium anode for a water heater Download PDFInfo
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- CN102398022A CN102398022A CN2011103439619A CN201110343961A CN102398022A CN 102398022 A CN102398022 A CN 102398022A CN 2011103439619 A CN2011103439619 A CN 2011103439619A CN 201110343961 A CN201110343961 A CN 201110343961A CN 102398022 A CN102398022 A CN 102398022A
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- water heater
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- magnesium anode
- magnesium
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Abstract
The invention discloses a casting method of a magnesium anode for a water heater, comprising the following steps: preheat the upper die block and the lower die block of the die cast to 250DEG C - 400DEG C; inject cooling circulating water into the circulating water passages arranged in the upper die block and/or the lower die block; inject magnesium melts into a multiplicity of die holes formed between the closed upper die block and the closed lower die block; after the alloy melt solidifies, separate the upper die block and the lower die block through hydraulic pressure system, and take out the magnesium anode casted in the die holes. The invention make a breakthrough at the automatic control of the production of water heater magnesium anode for the first time, replacing domestic manual casting technology and achieving energy conservancy and green production. The adoption of circulating water quenching die improves product performance and appearance qualification rate. Also, casting of multiple anodes at a time improves production efficiency and daily output. It has advantages of better-distributed ingredient, denser interior and high tenacity and high elongation compared with traditionally casted small anodes.
Description
Technical field
The present invention relates to a kind of casting method of anode, particularly a kind of water heater is with the casting method of magnesium anode.
Background technology
The sacrificial anode protection cathodic protection is that the anode of using the magnesium alloy also lower than the above earth potential of iron and steel to process is connected with protected object, is cost with the corrosion of anode, and protected object is not corroded.The concrete purposes of casting of magnesium alloy comprises at present: family expenses and industrial heat hydrophone.The inner bag of electric heater is mostly made by stainless steel; In use there is weld defect inevitably; Very likely form perforation owing to receive the corrosion of chlorion in the running water for a long time at the weld defect position; This has not only shortened the service life of electric heater, and causes the electric leakage of leaking, the crisis personal safety.The inner bag of electric heater adopts sacrificial anode (magnesium rod) protection negative electrode (inner bag); After the magnesium anode rod is installed in the inner bag of sealing, because its current potential is more negative than the current potential of liner material, so that it at first loses electronics is dissolved; And form current loop with inner bag; In water, constituted the macrocell corrosion, the cathode current of magnesium anode rod output makes inner bag be polarized to negative electrode and is protected, and has eliminated the harm of chlorion in the water effectively.The defective that the surface of casting magnesium anode should not exist influences such as burr, crackle, pore, field trash to use.Because the sacrificial magnesium alloy anode cost is low, and change conveniently, therefore change the corrosion that sacrificial magnesium alloy anode can significantly reduce water heater liner through the set time.Anode loss protection is as a kind of cost-effective metal corrosion preventing method, on the market to the demand of sacrificial anode in steady growth, therefore need cast out the method for the magnesium alloy anode of high qualification rate fast.
Summary of the invention
The objective of the invention is to improve from production capacity, performance, qualitatively the casting of magnesium alloy anode, disclose the casting method of a kind of water heater, it is characterized in that, comprise the steps: with magnesium anode
Step 1, the upper module and the lower module of mold is preheated to 250 ℃-400 ℃;
Inject cooling circulating water in step 2, the circulating water channel in being arranged on upper module and/or lower module;
Inject the magnesium alloy liquation in step 3, a plurality of die holes that between upper module that is closure state and lower module, form;
Step 4, treat that upper module and lower module are reduced to normal temperature after, through hydraulic system separately upper module and lower module automatically, take out the magnesium anode that casting forms in die hole.
Preferably, in the casting method of described water heater with magnesium anode, in said step 1, the upper module and the lower module of mold is preheated to 350 ℃.
Preferably, in the casting method of described water heater with magnesium anode, it is automatic realization of hydraulic cylinder promotion through hydraulic system that upper module and lower module are closure state.
Preferably, in the casting method of described water heater with magnesium anode, the quantity of die hole is 10-28.
Preferably; In the casting method of described water heater with magnesium anode; Said upper module includes a plurality of half-cylindrical holes; Said lower module corresponding position is provided with a plurality of semi-circular hole of respective amount equally, thereby when upper module and lower module are closure state, forms a plurality of die holes between upper module and the lower module.
Preferably, in the casting method of described water heater with magnesium anode, said circulating water channel is to be arranged in the hollow sandwich of upper module and/or lower module centre.
Preferably, in the casting method of described water heater with magnesium anode, said hydraulic system is through the solenoid control operation.
Preferably, in the casting method of described water heater with magnesium anode, the hydraulic cylinder of said hydraulic system links to each other with upper module.
Preferably, in the casting method of described water heater with magnesium anode, the temperature of magnesium alloy liquation is 675-715 ℃ in the said step 4.
Preferably, in the casting method of described water heater with magnesium anode, when said liquid magnesium alloy solidifies, send instruction to magnetic valve, magnetic valve is opened hydraulic system, and the hydraulic cylinder of control hydraulic system separates upper module and lower module.
The invention has the beneficial effects as follows:
1, breaks through foundryman's fever hydrophone magnesium anode production automation control first, substituted domestic hand teeming technology, realized energy-saving and environmental protection production.
2, adopt recirculated water chilling mould, improve performance of products and appearance yield.
3, disposablely cast many water heater magnesium anodes simultaneously, improved productivity ratio, improved the daily output.
4, method of the present invention makes the water heater magnesium anode more even on composition, and inside is finer and close, has higher intensity and percentage elongation than conventional cast primary anode.
Description of drawings
Fig. 1 is the step sketch map of water heater of the present invention with the casting method of magnesium anode.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is done further detailed description, can implement according to this with reference to the specification literal to make those skilled in the art.
As shown in Figure 1, a kind of water heater of the present invention comprises the steps: with the casting method of magnesium anode
Step 1, the upper module and the lower module of mold is preheated to 250 ℃-400 ℃; Listen and to state mold and be used for the foundryman's fever hydrophone and use magnesium anode; Said mold is made up of upper module and lower module; Upper module and lower module are connected through the mode that articulates, and offer the cavity that caves inward on the upper module, are also offering the cavity of the sunken inside of identical shaped and equal number with the corresponding position of upper module on the lower module; When upper module and lower module are closed, two closed open die holes that form a water heater with the shape of magnesium anode of cavity; Through using heater that upper module and lower module are heated; The temperature of heating is according to the difference of the size of mould hole count (10-28) and die hole and difference; Purpose is to avoid temperature low excessively; Mould and liquid magnesium alloy have the excessive temperature difference, cause the part chilling of liquid magnesium alloy, influence the internal structure of water heater with magnesium anode; During heating, upper module and lower module can be that to be in closure state also can be to be in open mode.
Inject cooling circulating water in step 2, the circulating water channel in being arranged on upper module and/or lower module; The inside of upper module and/or lower module is hollow structure, is provided with water pipe in the said hollow structure, and pipeline can be made as snakelike; Once-through type or X-shape; Purpose is in order to form the circulatory system of a water, and liquid magnesium alloy is played the effect of rapid cooling, because of the temperature of liquid magnesium alloy is 675-715 ℃; Under the state of not connecting recirculated water, inject liquid magnesium alloy, can cause the too high mould that burns of temperature; Said water circulation system can according to the quantity of die hole with vary in size, be arranged in the upper module or in the lower module or in upper module and the lower module.
Inject the magnesium alloy liquation in step 3, a plurality of die holes that between upper module that is closure state and lower module, form, after mold and the bed die closure, form cylinder a plurality of and that the external world communicates, cylinder can be circle, square, rhombus etc.; The folding of mold and bed die is through HYDRAULIC CONTROL SYSTEM, and hydraulic system comprises hydraulic pump and hydraulic cylinder, and hydraulic cylinder links to each other with upper module, stretching out and bouncing back and control the folding of upper module and lower module through hydraulic cylinder; Hydraulic pump links to each other with magnetic valve, and through the solenoid control hydraulic system, after the magnetic valve energising, to the hydraulic system transfers working signal, hydraulic system brings into operation.
Step 4, treat magnesium alloy solidification after; Automatically separate upper module and lower module through hydraulic system, take out the magnesium anode that casting forms in die hole, when said liquid magnesium alloy solidifies; Send instruction to magnetic valve; Magnetic valve is opened hydraulic system, and the hydraulic cylinder of control hydraulic system separates upper module and lower module, and is artificial then or use the magnesium anode product through mechanical hand taking-up water heater.
Preferably, in the casting method of described water heater with magnesium anode, in said step 1, the upper module and the lower module of mold is preheated to 350 ℃.
Preferably, in the casting method of described water heater with magnesium anode, it is automatic realization of hydraulic cylinder promotion through hydraulic system that upper module and lower module are closure state.
Preferably, in the casting method of described water heater with magnesium anode, the quantity of die hole is 10-28.
Preferably; In the casting method of described water heater with magnesium anode; Said upper module includes a plurality of half-cylindrical holes; Said lower module corresponding position is provided with a plurality of semi-circular hole of respective amount equally, thereby when upper module and lower module are closure state, forms a plurality of die holes between upper module and the lower module.
Preferably, in the casting method of described water heater with magnesium anode, said circulating water channel is to be arranged in the hollow sandwich of upper module and/or lower module centre.
Preferably, in the casting method of described water heater with magnesium anode, said hydraulic system is through the solenoid control operation.
Preferably, in the casting method of described water heater with magnesium anode, the hydraulic cylinder of said hydraulic system links to each other with upper module.
Preferably, in the casting method of described water heater with magnesium anode, the temperature of magnesium alloy liquation is 675-715 ℃ in the said step 4.
Preferably, in the casting method of described water heater with magnesium anode, when said liquid magnesium alloy solidifies, send instruction to magnetic valve, magnetic valve is opened hydraulic system, and the hydraulic cylinder of control hydraulic system separates upper module and lower module.
Although embodiment of the present invention are open as above; But it is not restricted to listed utilization in specification and the embodiment; It can be applied to various suitable the field of the invention fully, for being familiar with those skilled in the art, can easily realize other modification; Therefore under the universal that does not deviate from claim and equivalency range and limited, the legend that the present invention is not limited to specific details and illustrates here and describe.
Claims (10)
1. a water heater is characterized in that with the casting method of magnesium anode, comprises the steps:
Step 1, the upper module and the lower module of mold is preheated to 250 ℃-400 ℃;
Inject cooling circulating water in step 2, the circulating water channel in being arranged on upper module and/or lower module;
Inject the magnesium alloy liquation in step 3, a plurality of die holes that between upper module that is closure state and lower module, form;
Step 4, treat that alloy liquid solidifies after,, through hydraulic system separately upper module and lower module automatically, take out the magnesium anode that casting forms in die hole.
2. water heater as claimed in claim 1 is characterized in that with the casting method of magnesium anode, in said step 1, the upper module and the lower module of mold is preheated to 350 ℃.
3. water heater as claimed in claim 1 is characterized in that with the casting method of magnesium anode it is automatic realization of hydraulic cylinder promotion through hydraulic system that upper module and lower module are closure state.
4. water heater as claimed in claim 1 is characterized in that with the casting method of magnesium anode the quantity of die hole is 10-28.
5. water heater as claimed in claim 1 is with the casting method of magnesium anode; It is characterized in that; Said upper module includes a plurality of half-cylindrical holes; Said lower module corresponding position is provided with a plurality of semi-circular hole of respective amount equally, thereby when upper module and lower module are closure state, forms a plurality of die holes between upper module and the lower module.
6. water heater as claimed in claim 1 is characterized in that with the casting method of magnesium anode said circulating water channel is to be arranged in the hollow sandwich of upper module and/or lower module centre.
7. water heater as claimed in claim 1 is characterized in that with the casting method of magnesium anode said hydraulic system is through the solenoid control operation.
8. water heater as claimed in claim 1 is characterized in that with the casting method of magnesium anode: the hydraulic cylinder of said hydraulic system links to each other with upper module.
9. water heater as claimed in claim 1 is characterized in that with the casting method of magnesium anode: the temperature of magnesium alloy liquation is 675-715 ℃ in the said step 4.
10. water heater as claimed in claim 7 is characterized in that with the casting method of magnesium anode: when said liquid magnesium alloy solidifies, send instruction to magnetic valve, magnetic valve is opened hydraulic system, and the hydraulic cylinder of control hydraulic system separates upper module and lower module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110343961.9A CN102398022B (en) | 2011-11-03 | 2011-11-03 | Casting method of a magnesium anode for a water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110343961.9A CN102398022B (en) | 2011-11-03 | 2011-11-03 | Casting method of a magnesium anode for a water heater |
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| Publication Number | Publication Date |
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| CN102398022A true CN102398022A (en) | 2012-04-04 |
| CN102398022B CN102398022B (en) | 2015-04-15 |
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| CN201110343961.9A Active CN102398022B (en) | 2011-11-03 | 2011-11-03 | Casting method of a magnesium anode for a water heater |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102965671A (en) * | 2012-11-29 | 2013-03-13 | 大同普罗卡特精华科技有限公司 | Double-leg magnesium alloy sacrificial anode for water heater and preparation method of anode |
| CN104451703A (en) * | 2014-12-15 | 2015-03-25 | 山东德瑞防腐材料有限公司 | Abrasion-resistant corrosion-resistant aluminum alloy sacrificial anode |
| CN114505467A (en) * | 2022-04-06 | 2022-05-17 | 太原科技大学 | Aluminum alloy casting mold and method utilizing electromagnetic induction to supplement temperature |
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| GB876783A (en) * | 1957-04-04 | 1961-09-06 | Dow Chemical Co | Anode for magnesium primary cell |
| JPH0679438A (en) * | 1992-09-02 | 1994-03-22 | Sumitomo Metal Mining Co Ltd | Anode casting machine for electrolysis |
| KR20020010179A (en) * | 2000-07-27 | 2002-02-04 | 정신검 | welding method and system of leaden positive pole for produce copper foil |
| CN1477233A (en) * | 2002-08-21 | 2004-02-25 | 北京有色金属研究总院 | Extruding method for making sacrificial anode rod |
| CN101560610A (en) * | 2009-05-21 | 2009-10-21 | 太原理工大学 | Method of refining high-purity magnesium |
| CN201432082Y (en) * | 2009-07-13 | 2010-03-31 | 淄博宏泰防腐有限公司 | Semi-continuous large-diameter magnesium alloy rod casting die |
| CN201442074U (en) * | 2009-07-13 | 2010-04-28 | 淄博宏泰防腐有限公司 | Water heater magnesium rod foundry die |
| CN101992269A (en) * | 2010-11-10 | 2011-03-30 | 王洪伟 | Water-cooled magnesium alloy casting die |
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2011
- 2011-11-03 CN CN201110343961.9A patent/CN102398022B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB876783A (en) * | 1957-04-04 | 1961-09-06 | Dow Chemical Co | Anode for magnesium primary cell |
| JPH0679438A (en) * | 1992-09-02 | 1994-03-22 | Sumitomo Metal Mining Co Ltd | Anode casting machine for electrolysis |
| KR20020010179A (en) * | 2000-07-27 | 2002-02-04 | 정신검 | welding method and system of leaden positive pole for produce copper foil |
| CN1477233A (en) * | 2002-08-21 | 2004-02-25 | 北京有色金属研究总院 | Extruding method for making sacrificial anode rod |
| CN101560610A (en) * | 2009-05-21 | 2009-10-21 | 太原理工大学 | Method of refining high-purity magnesium |
| CN201432082Y (en) * | 2009-07-13 | 2010-03-31 | 淄博宏泰防腐有限公司 | Semi-continuous large-diameter magnesium alloy rod casting die |
| CN201442074U (en) * | 2009-07-13 | 2010-04-28 | 淄博宏泰防腐有限公司 | Water heater magnesium rod foundry die |
| CN101992269A (en) * | 2010-11-10 | 2011-03-30 | 王洪伟 | Water-cooled magnesium alloy casting die |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102965671A (en) * | 2012-11-29 | 2013-03-13 | 大同普罗卡特精华科技有限公司 | Double-leg magnesium alloy sacrificial anode for water heater and preparation method of anode |
| CN104451703A (en) * | 2014-12-15 | 2015-03-25 | 山东德瑞防腐材料有限公司 | Abrasion-resistant corrosion-resistant aluminum alloy sacrificial anode |
| CN114505467A (en) * | 2022-04-06 | 2022-05-17 | 太原科技大学 | Aluminum alloy casting mold and method utilizing electromagnetic induction to supplement temperature |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102398022B (en) | 2015-04-15 |
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Effective date of registration: 20190507 Address after: 037300 No. 2121 Fengjie, Equipment Manufacturing Industrial Park, Datong Development Zone, Shanxi Province Patentee after: Datong High Magnesium Technology Co., Ltd. Address before: 037500 Xima Village, Guangling County, Datong City, Shanxi Province Co-patentee before: Tong Zhongsheng Patentee before: Datong General Carter Essence Technology Co.,Ltd. |
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