CN105420548B - A kind of lead-calcium alloy production method - Google Patents
A kind of lead-calcium alloy production method Download PDFInfo
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- CN105420548B CN105420548B CN201510984320.XA CN201510984320A CN105420548B CN 105420548 B CN105420548 B CN 105420548B CN 201510984320 A CN201510984320 A CN 201510984320A CN 105420548 B CN105420548 B CN 105420548B
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- lead
- calcium
- aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C11/00—Alloys based on lead
- C22C11/02—Alloys based on lead with an alkali or an alkaline earth metal as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
Abstract
The invention discloses a kind of lead-calcium alloy production method, it is that lead only is warming up into 700~800 DEG C in the first stove of melting, adds aluminium, after being cast into high-aluminium alloy ingot after aluminium fusing；When later per stove melting, lead need to only be melted in a low temperature of 500~600 DEG C, high-aluminium alloy ingot and calcium metal are directly then sequentially added into lead liquid according to required alloying component in proportion, stirred paramount aluminium alloy ingots and calcium metal is completely melt, again by well mixed liquid cast, produce；The present invention is that the improvement to traditional lead-calcium alloy smelting technology is changed, and need to only heat up aluminum melting in first stove, later per stove without rising to 800 DEG C of high temperature again, with the features such as environmentally friendly, energy-saving, production efficiency is high, service life of equipment is long, and simplifies production process.
Description
Technical field
The present invention relates to a kind of lead-calcium alloy production method, belong to metallurgical technology field.
Background technology
Lead-calcium alloy is mainly for the manufacture of the electrode plate grid or electrolytic zinc positive plate of battery, traditional lead-calcium alloy production
Method is the first molten Pb at 500~600 DEG C, and then adding aluminium on lead liquid surface makees protective agent, manufactures lead-calcium intermediate alloy,
Reusable lead-calcium intermediate alloy produces the lead-calcium alloy of final required alloying component.Because the fusing point of aluminium is higher（660℃）, institute
To need to be warming up to 700~800 DEG C when adding aluminium, stir 1.5-2 hours, be cooled to 500~600 DEG C again after aluminium is completely melt
Calcium metal is added into lead liquation.Not only process is more for this smelting technology, and time-consuming, low production efficiency, and each stove will
First it is warming up to 700~800 DEG C again to cool, energy consumption is big, production cost is high, also resulting in lead steam during heating aluminum melting largely volatilizees,
It is detrimental to health, pollutes environment, frequently heating and temperature-fall period can also increase equipment loss, shortens service life of equipment.
The content of the invention
The technical problems to be solved by the invention, which are to provide, a kind of saves that energy consumption, technique is easy, simple to operate, production effect
The high lead-calcium alloy production method of rate, to overcome the deficiencies in the prior art.
In order to solve the above technical problems, technical scheme is as follows：
A kind of lead-calcium alloy production method, this method is that lead only is warming up into 700~800 DEG C in the first stove of smelting, addition
Aluminium, it is standby after being cast into high-aluminium alloy ingot after aluminium fusing；Later per stove smelt when, only need in a low temperature of 500~600 DEG C incite somebody to action
Lead is melted, and high-aluminium alloy ingot and calcium metal are directly then sequentially added into lead liquid in required alloying component ratio, is stirred paramount
Aluminium alloy ingots and calcium metal are completely melt, by well mixed liquid cast, produce lead-calcium alloy.
In above-mentioned lead-calcium alloy production method, described calcium metal can be the shape of calcium block, calcium bits, calcium powder or calcium grain
Formula.
Beneficial effects of the present invention：Compared with prior art, the present invention is the improvement to traditional lead-calcium alloy smelting technology
Change, have the characteristics that：
1. environmental protection：High temperature only need to be raised in first stove to 800 DEG C of aluminum meltings, later per stove without heating, whole low smelting heat subtracts
Lack lead steam volatilization, reduce environmental pollution.
2. it is energy-saving：Due to without being all warming up to 800 DEG C per stove, significantly reducing power consumption, having saved the energy, reducing
Cost, 100 yuan of cost can at least be reduced by often refining 1 ton, and economic benefit is obvious.
3. production efficiency is high, time-consuming short：Due to the aluminum melting that need to only be heated up in first stove, the work of heating aluminum melting is eliminated per stove later
Sequence, therefore technique is simplified, it is simple to operate, without stirring, labor intensity is greatly reduced, the duration of heat is shortened, improved
Production efficiency.
4. protection equipment：Due to the molten aluminum that need to only be heated up in first stove, later per stove without heating, it is to avoid smelting furnace it is frequent
Heating and cooling, reduce equipment loss, extend service life.
5. because the proportion of aluminium is more much smaller than lead, and the solubility in liquid lead is smaller, therefore, in lead liquid is added
When, aluminium often floats over lead liquid surface, can produce substantial amounts of scum silica frost with oxygen reaction at high temperature, adsorbs many liquid leads, leads
Cause takes away substantial amounts of liquid metal lead in the process for dragging for away scum silica frost, causes to waste.And high-aluminium alloy ingot is added lead liquid by the present invention
When, lead liquid surface will not be floated over, the waste of lead is reduced.
With reference to embodiment, the present invention is further illustrated.
Embodiment
Embodiment 1.In the first stove of melting, lead is first warming up to 800 DEG C, appropriate aluminium is added, high alumina conjunction is cast into after fusing
Ingot, it is standby；The quantity and specification of the high-aluminium alloy ingot of first stove casting can determine according to produce reality demand, can only cast one
High-aluminium alloy number of spindles amount needed for it, so only need to once be heated up aluminum melting daily；Can also disposably be cast a month institute
The high-aluminium alloy number of spindles amount needed, so monthly only need to once be heated up aluminum melting, and the rest may be inferred；When being smelted per stove later, only need
In 600 DEG C of low temperature（The condensing temperature of a little higher than lead）It is lower to melt lead, a certain amount of high alumina is directly sequentially added into lead liquid
Alloy pig and calcium metal, stir paramount aluminium alloy ingots and calcium metal is completely melt, by well mixed liquid cast, produce lead calcium
Alloy.In the production process of lead-calcium alloy, aluminium is as calcium protective agent, for protecting added calcium metal to be unlikely in melting
Process is largely aoxidized and influences the quality of final products.Aluminium in the present invention is added in aluminium ingot form, allows it shorter
Melted in time.The calcium metal used in the present invention can be the form of calcium block, calcium bits, calcium powder or calcium grain, preferably, can be with
The form of calcium block adds calcium metal.The addition of aluminium and calcium metal is according to being adjusted the need for product in the present invention, usual root
The amount of calcium block required for being calculated according to the calcium amount in lead-calcium alloy.
Embodiments of the present invention are not limited to above-described embodiment, and that is made on the premise of present inventive concept is not departed from is various
Change is belonged within protection scope of the present invention.
Claims (2)
1. a kind of lead-calcium alloy production method, it is characterised in that：Lead is only warming up to 700~800 DEG C in the first stove of smelting, addition
Aluminium, is cast after after aluminium fusing, obtains high-aluminium alloy ingot, standby；When being smelted per stove later, only need to be at 500~600 DEG C it is low
Lead is melted under temperature, high-aluminium alloy ingot and calcium metal are then directly sequentially added into lead liquid, paramount aluminium alloy ingots and gold is stirred
Category calcium is completely melt, well mixed liquid is cast again, lead-calcium alloy is produced.
2. lead-calcium alloy production method according to claim 1, it is characterised in that：Described calcium metal be calcium block, calcium bits,
The form of calcium powder or calcium grain.
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| CN201510984320.XA CN105420548B (en) | 2015-12-25 | 2015-12-25 | A kind of lead-calcium alloy production method |
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| CN201510984320.XA CN105420548B (en) | 2015-12-25 | 2015-12-25 | A kind of lead-calcium alloy production method |
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| CN105420548A CN105420548A (en) | 2016-03-23 |
| CN105420548B true CN105420548B (en) | 2017-09-05 |
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| CN110644019A (en) * | 2019-10-28 | 2020-01-03 | 昆明冶金研究院 | Anode plate for high-electric-efficiency zinc electrolysis and preparation method thereof |
| CN111705337B (en) * | 2020-06-23 | 2022-02-08 | 超威电源集团有限公司 | Method for preparing lead-calcium master alloy by molten salt galvanic cell method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101693961A (en) * | 2009-11-03 | 2010-04-14 | 株洲冶炼集团股份有限公司 | Melting method for lead-calcium alloys |
| CN101696479A (en) * | 2009-11-03 | 2010-04-21 | 株洲冶炼集团股份有限公司 | Method for producing lead-calcium alloy |
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2015
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101693961A (en) * | 2009-11-03 | 2010-04-14 | 株洲冶炼集团股份有限公司 | Melting method for lead-calcium alloys |
| CN101696479A (en) * | 2009-11-03 | 2010-04-21 | 株洲冶炼集团股份有限公司 | Method for producing lead-calcium alloy |
Non-Patent Citations (2)
| Title |
|---|
| 铅-钙-铝合金的研制及推广应用;李霞 等;《甘肃冶金》;20021231;全文 * |
| 铸造钱该合金锭的开发;陈正明;《上海有色金属》;20050630;全文 * |
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