CN1084899A - Lead selenium complex alloy and smelting process thereof - Google Patents
Lead selenium complex alloy and smelting process thereof Download PDFInfo
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- CN1084899A CN1084899A CN 92107156 CN92107156A CN1084899A CN 1084899 A CN1084899 A CN 1084899A CN 92107156 CN92107156 CN 92107156 CN 92107156 A CN92107156 A CN 92107156A CN 1084899 A CN1084899 A CN 1084899A
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Abstract
A kind of lead selenium complex alloy and smelting process thereof, the selenium that contains lower (1.2-1.5%) antimony and higher (0.05-0.25) in this alloy, its melting is to pack into and put into the lead that has melted after the capping in the castle adding element, in the antimony alloy liquid and sink to furnace bottom, 480-510 ℃ of temperature, stir and be cast into ingot, this alloy has good machinery and electric property, preservative property are strong, the water consumption is low, day, self-discharge rate was below 0.1%, not only can be used for making the maintenance-free lead-acid battery grid, its basic mechanical design feature index reaches advanced level, also can be widely used in machinery and aircraft industry.
Description
The invention provides a kind of main lead selenium complex alloy and smelting process thereof as the storage battery plates grid material.
Lead storage battery is that present cost is minimum, most popular secondary cell, its pole plate grid use the Pb-Sb alloy of high antimony (more than 4%) content to make for a long time, this alloy has mechanical property and casting properties preferably, but also is that positive plate is corrosion-resistant and cause the major cause of negative pole self-discharge always.For erosion resistance and the mechanical property that improves grid alloy, people are devoted to non-maintaining or reduce the research of safeguarding lead storage battery for a long time, gas separated out and self-discharge when the problem that at first solves was the minimizing charging for this reason, and best bet is that the antimony in the alloy (Sb) content is dropped to 2% or lower, but the reduction of antimony content causes alloy mechanical performance and casting properties poor, can the dendritic coarse-grain of generation tree when crystallization, simultaneously alloy strength is low, plasticity difference and fragility is big.In order to overcome above-mentioned deficiency, the best contains antimony amount and the suitable proportion in seeking alloy, also should add the selenium element of energy crystal grain thinning.But, because the little boiling point of proportion of selenium is low, differ greatly with lead, selenium can't be added lead antimony alloy with general smelting process.Once the someone proposes a kind of smelting process of plumbous selenium alloy recently, be earlier selenium, tin to be smelted into selenium-tin alloy by certain method, the steel jar special of again this selenium-tin alloy and other element that should add being packed in the lump is placed on the smelting furnace inner bottom part, then plumbous mother liquor is put into stove and heated up, is incubated, is stirred to fine melt, with jar special sulphur is added again at last, and repeat above-mentioned intensification, insulation, whipping process.This method has realized selenium is added the purpose of lead antimony alloy, but also has the following disadvantages: (1) needs by twice smelting, and technical process is long, and energy consumption is big; Not only need isolated plant when (2) smelting for the second time, and complex operation, inconvenience; (3) need to use plumbous mother liquor, inconvenience is calculated.
The object of the present invention is to provide that a kind of technical process is simple, energy consumption is low, do not need special-purpose steel control equipment and plumbous mother liquor, simultaneously easy to operate lead selenium complex alloy and smelting process thereof are to overcome above-mentioned deficiency.
Also contain antimony (Sb), selenium (Se), tin (Sn), arsenic (As), copper elements such as (Cu) outside the lead selenium complex alloy deleading of the present invention (Pb), the prescription of alloy is (a % weight, down together):
Antimony 1.2-1.5
Arsenic 0.2-0.3
Tin 0.04-0.08
Selenium 0.05-0.25
Copper 0.06-0.08
All the other are plumbous (available 98%-# lead bullion), and each component sum is 100%.
The smelting process of lead selenium complex alloy of the present invention is: earlier by the gross weight of cast alloys and the above-mentioned various elements and the selected suitable proportion thereof that will add, calculate the addition of lead and each element respectively, because the fusing point the highest (630 ℃) of antimony in this alloy, so earlier will be by the antimony of proportioning weight number with partly plumbous stand-by after the fusing under 550 ℃ of-600 ℃ of temperature, again with remaining selenium, tin, arsenic is contained in the hollow container made from lead with cover and is put into above-mentioned lead antimony alloy liquid after the capping, allow it sink to the bottom, controlled temperature 480-510 ℃, treating to melt full the back stirs once, make its scattering and permeating even, be cast into ingot after static 15-20 minute, mould spray is with releasing agent, depanning when treating that die temperature is reduced to 150 ℃ of left and right sides.Need to prove: plumbous weight should comprise that part of lead and the plumbous amount of these two portions of the used lead of making lead container (comprising lid) sum of first melting in the alloy, can adopt lead pig or lead alloy to make.Why the present invention will put into castle with elements such as selenium, tin and be closed is carried out melting; purpose is proportion, boiling point all well below elements such as the selenium of antimony, tin parcel, protect and make it sink to furnace bottom and non-volatile, thereby realizes selenium is added lead antimony alloy.Therefore, the proterties of lead container can be arbitrary shape, only need have lid its sealing can be got final product, and adopts usually and bore some blind holes on lead pig, and the reusable lead lid is with the method for hole sealing behind the elements such as the selenium of packing into, tin.In order to reduce plumbous loss in fusion process as far as possible, can on the antimony liquid level, cover the about 1-2 of a bed thickness cun ash wood during melting, it all floats on the face during casting, after ingot is cast and expired, scrapes off gently with cutter and to get final product.
The distinguishing feature of smelting process of the present invention is that technical process is simple, and easy to operate, energy consumption is low, need not plumbous mother liquor, only can obtain lead selenium complex alloy by primary smelting, thereby remedy the deficiencies in the prior art effectively.Simultaneously, because antimony content is lower in this alloy, selenium content is higher, can be used for manufacturing good maintenance-free lead-acid battery grid of fine quality, it has the physical strength height, electric property is good, non-corrosibility is strong, characteristics such as water loss is low, once Chong Dian electrical capacity can reach more than 90%, and day self-discharge rate is below 0.1%, and be more than 2-3 times of common lead antimony alloy work-ing life, some major technique index reaches advanced level, as, pole plate tensile strength (Psi) 5500, yield strength 0.2%, displacement (Psi) 4000, hardness Bu Shi 15, Rockwell 80, unit elongation (%) 20, density (ib-in
3) 405, the melting range (°F) 550-610, the casting area (°F) 800-900; Overpotential of hydrogen evolution Tafef q=1.06V; Corrosion speed 0.0063mg/hrcm2; Water consumption 1.2g/An.In addition, this alloy also can be widely used in machinery and aircraft industry.
For implementing the present invention, existing is example (is base-material with lead) with melting 100kg alloy, provides one group of best proportioning data:
Antimony 1.4 bronze medals 0.07
Arsenic 0.2 selenium 0.25
Tin 0.08 plumbous its surplus
Claims (5)
1, a kind of lead selenium complex alloy is characterized in that each element proportioning is (% weight) in this alloy:
Antimony 1.2-1.5
Arsenic 0.2-0.3
Tin 0.04-0.08
Selenium 0.05-0.25
Copper 0.06-0.08
All the other are plumbous.
2, lead selenium complex alloy according to claim 1 is characterized in that containing that each element proportioning is an antimony 1.4% in the gold, copper 0.07%, and arsenic 0.2%, selenium 0.25, tin 0.08, all the other are plumbous.
3, a kind of smelting process of lead selenium complex alloy, also contain elements such as antimony, selenium, arsenic, copper, tin outside this alloy deleading, it is characterized in that to pack into by selenium, arsenic, the tin of proportioning and put into lead, the antimony alloy liquid that has melted and sink to furnace bottom after the capping in the hollow container with cover of plumbous system, controlled temperature 480-510 ℃, stirring is cast as ingot.
4, smelting process according to claim 3 is characterized in that this castle with cover can make with lead pig or lead alloy, and it is shaped as arbitrary shape.
5,, it is characterized in that in the fusion process at plumbous liquid surface coverage one deck 1-2 cun thick ash wood according to claim 3 or 4 described smelting processes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92107156A CN1035197C (en) | 1992-09-28 | 1992-09-28 | Lead selenium complex alloy and smelting process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92107156A CN1035197C (en) | 1992-09-28 | 1992-09-28 | Lead selenium complex alloy and smelting process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1084899A true CN1084899A (en) | 1994-04-06 |
| CN1035197C CN1035197C (en) | 1997-06-18 |
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ID=4942713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92107156A Expired - Fee Related CN1035197C (en) | 1992-09-28 | 1992-09-28 | Lead selenium complex alloy and smelting process thereof |
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| Country | Link |
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| CN (1) | CN1035197C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100452496C (en) * | 2007-05-21 | 2009-01-14 | 赵恒祥 | Accumulator grid alloy material and its preparing method |
| CN101792873A (en) * | 2010-03-26 | 2010-08-04 | 如皋市天鹏冶金有限公司 | Low-stibium multicomponent lead alloy and production technology and applications thereof |
| CN102340007A (en) * | 2011-09-28 | 2012-02-01 | 江苏贝思特动力电源有限公司 | Positive grid alloy for power lead-acid batteries and manufacturing process thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2259156B1 (en) * | 1974-01-28 | 1979-09-28 | Metallgesellschaft Ag |
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1992
- 1992-09-28 CN CN92107156A patent/CN1035197C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100452496C (en) * | 2007-05-21 | 2009-01-14 | 赵恒祥 | Accumulator grid alloy material and its preparing method |
| CN101792873A (en) * | 2010-03-26 | 2010-08-04 | 如皋市天鹏冶金有限公司 | Low-stibium multicomponent lead alloy and production technology and applications thereof |
| CN102340007A (en) * | 2011-09-28 | 2012-02-01 | 江苏贝思特动力电源有限公司 | Positive grid alloy for power lead-acid batteries and manufacturing process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1035197C (en) | 1997-06-18 |
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