CN102787257A - Novel mixed rare earth pyrophoric alloy and preparation method thereof - Google Patents
Novel mixed rare earth pyrophoric alloy and preparation method thereof Download PDFInfo
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- CN102787257A CN102787257A CN2012102959413A CN201210295941A CN102787257A CN 102787257 A CN102787257 A CN 102787257A CN 2012102959413 A CN2012102959413 A CN 2012102959413A CN 201210295941 A CN201210295941 A CN 201210295941A CN 102787257 A CN102787257 A CN 102787257A
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Abstract
The invention discloses a novel mixed rare earth pyrophoric alloy and a preparation method of the novel mixed rare earth pyrophoric alloy. The novel mixed rare earth pyrophoric alloy comprises the following components by weight: 12-13 parts of lanthanum, 12-14 parts of cerium, 7-10 parts of iron, 65-70 parts of zinc, 0.3-2 parts of manganese and 0.5-1.5 parts of aluminum. Preferentially, the novel mixed rare earth pyrophoric alloy comprises the following components by weight: 12 parts of lanthanum, 13 parts of cerium, 9 parts of iron, 65 parts of zinc, 0.6 part of manganese and 0.4 part of aluminum. The preparation method of the novel mixed rare earth pyrophoric alloy comprises the following steps: (1) weighting the raw materials including the lanthanum, the cerium, the iron, the zinc, the manganese and the aluminum according to the weight parts, and cutting the raw materials into small blocks; (2) putting all the raw materials into a melting furnace, and melting at high temperature melting; (3) melting the raw materials, stirring and mixing uniformly electromagnetically, taking out of the melting furnace, decreasing temperature, and casting the ingot to obtain the finished product which is the pyrophoric alloy. The mixed rare earth pyrophoric alloy is prepared by using less rear earth, and has the advantages of low production cost, high quality, stable performance, low ignition point and strong wear resistance.
Description
Technical field
The invention belongs to the alloy preparation field, related in particular to a kind of mishmetal sparking alloy and preparation method thereof that can be used in industry and the daily life.
Technical background
The rare earth sparking alloy has purposes widely in industry and daily life, in daily life, the rare earth sparking alloy is mainly used in flint stone, is the pyrophoric important source of lighter.In defence and military, the rare earth sparking alloy is processed into different elements, be respectively charged on the different weapons, can obtain satisfied munitions effect.As being used for tracer round in the weapon, bullet and shell draw core, portfire and other military applications etc.Other industrial aspect can be used for industrial gas lamp after sparking alloy is processed into element, geordie, welding gun lighter for ignition and torch ignition device etc.
Traditional rare earth sparking alloy is generally synthetic by rare earth or mishmetal, iron, magnesium, copper etc., because the content of RE makes that often more than 70% the cost of alloy is very expensive in the alloy; And very easily oxidation of REE, the content in alloy is big more, because of its oxidation is big more to the influence of quality product, reduces REE and can not only reduce cost at the middle content of sparking alloy, also can improve the quality of products simultaneously.Therefore, seek the lower sparking alloy of new generation of a kind of content of rare earth and become development certainty.
Summary of the invention
The objective of the invention is to deficiency, provide a kind of under the prerequisite that guarantees its performance, reduce the usage quantity of rare earth, reduce production costs, can be applicable to sparking alloy in industry and the daily life and preparation method thereof to prior art.
To achieve these goals, the present invention has adopted following technical scheme: a kind of sparking alloy, and its component comprises cerium, iron, zinc, manganese and aluminium; The parts by weight of each component are respectively: 12～13 parts of lanthanums, 12～14 parts of ceriums, 7～10 parts of iron, 65～70 parts on zinc, 0.3～2 part in manganese, 0.5～1.5 part in aluminium;
The parts by weight of described each component are preferably: 12～13 parts of lanthanums, 13～14 parts of ceriums, 8～9 parts of iron, 66～68 parts on zinc, 0.1～1.5 part in manganese, 0.5～1 part in aluminium.
The parts by weight of described each component are preferably: 12 parts of lanthanums, 13 parts of ceriums, 9 parts of iron, 67 parts on zinc, 0.6 part in manganese, 0.4 part in aluminium;
The method method for preparing above-mentioned sparking alloy may further comprise the steps successively:
(1) the parts by weight ratio according to each component takes by weighing raw material lanthanum, cerium, iron, zinc, manganese and aluminium, then each component is cut into fritter; Particle diameter 0.2 to 0.4cm is advisable.
(2) each component is dropped in the smelting furnace together, carry out high melt then; Furnace temperature is more than 900 ℃;
(3) treat the fusing of each component, adopt induction stirring to mix after, the cooling ingot casting of coming out of the stove can obtain the mishmetal sparking alloy of finished product.
REE in the alloy and Zn, Fe etc. generate the intermetallic compound of low ignition point; Fe that part is unnecessary and Zn generate hard crisp FeZn compound, play the effect of the intensity of strengthening alloy; Zn has the performance that extends preferably as the matrix of alloy, makes the press workability of alloy to improve; A spot of Mn can play the effect of crystal grain thinning; A spot of Al can strengthen the wear resistance of alloy.
Advantage of the present invention:
1. the rare earth usage quantity is few, and production cost is low, and quality product is high.
2. product performance are stable, and according to detection, the alloy density (ρ) that uses prescription of the present invention and preparation method to produce is 6.8g/cm3～7.0g/cm3,580 ℃～650 ℃ of fusing points (t), hardness (HV) 150～170, sparking rate >=98%.
3. burning-point is low, wear resistance is strong; Because the increase of zinc content, the fusing point of alloy reduces, and ductility is good, and the corrosion resistance nature of alloy obviously is superior to the traditional rare earth sparking alloy.
Embodiment
Below in conjunction with specific embodiment the present invention is further specified.
Embodiment 1:
Each component concentration of sparking alloy: lanthanum 12kg, cerium 13kg, iron 9kg, zinc 67kg, manganese 0.6kg, aluminium 0.4kg.
Its preparation method:
(1) above-mentioned each component is cut into fritter;
(2) each component is dropped in the smelting furnace together, carry out high melt then;
(3) treat the fusing of each component, adopt induction stirring to mix after, the cooling ingot casting of coming out of the stove can obtain the mishmetal sparking alloy of finished product.
Through measuring its sparking rate >=99%, hardness value is 170HV, and has good erosion resistance.
Embodiment 2:
Each component concentration of sparking alloy: lanthanum 12kg, cerium 14kg, iron 8kg, zinc 66kg, manganese 0.5kg, aluminium 0.5kg.
Its preparation method:
(1) above-mentioned each component is cut into fritter;
(2) each component is dropped in the smelting furnace together, carry out high melt then;
(3) treat the fusing of each component, adopt induction stirring to mix after, the cooling ingot casting of coming out of the stove can obtain the mishmetal sparking alloy of finished product.
Through measuring its sparking rate >=98%, hardness value is 158HV, and has good erosion resistance.
Embodiment 3:
Each component concentration of sparking alloy: lanthanum 13kg, cerium 14kg, iron 10kg, zinc 70kg, manganese 1.0kg, aluminium 1.0kg.
Its preparation method:
(1) above-mentioned each component is cut into fritter;
(2) each component is dropped in the smelting furnace together, carry out high melt then;
(3) treat the fusing of each component, adopt induction stirring to mix after, the cooling ingot casting of coming out of the stove can obtain the mishmetal sparking alloy of finished product.
Through measuring its sparking rate >=98%, hardness value is 168HV, and has good erosion resistance.
Embodiment 4:
Each component concentration of sparking alloy: lanthanum 12kg, cerium 13kg, iron 8kg, zinc 66kg, manganese 2kg, aluminium 1kg.
Its preparation method:
(1) above-mentioned each component is cut into fritter;
(2) each component is dropped in the smelting furnace together, carry out high melt then;
(3) treat the fusing of each component, adopt induction stirring to mix after, the cooling ingot casting of coming out of the stove can obtain the mishmetal sparking alloy of finished product.
Through measuring its sparking rate >=98%, hardness value is 159HV, and has good erosion resistance.
Embodiment 5:
Each component concentration of sparking alloy: lanthanum 13kg, cerium 14kg, iron 9kg, zinc 68kg, manganese 1.5kg, aluminium 0.5kg.
Its preparation method:
(1) above-mentioned each component is cut into fritter;
(2) each component is dropped in the smelting furnace together, carry out high melt then;
(3) treat the fusing of each component, adopt induction stirring to mix after, the cooling ingot casting of coming out of the stove can obtain the mishmetal sparking alloy of finished product.
Through measuring its sparking rate >=98%, hardness value is 164HV, and has good erosion resistance.
Embodiment 6:
Each component concentration of sparking alloy: lanthanum 13kg, cerium 12kg, iron 8kg, zinc 69kg, manganese 0.8kg, aluminium 1.2kg.
Its preparation method:
(1) above-mentioned each component is cut into fritter;
(2) each component is dropped in the smelting furnace together, carry out high melt then;
(3) treat the fusing of each component, adopt induction stirring to mix after, the cooling ingot casting of coming out of the stove can obtain the mishmetal sparking alloy of finished product.
Through measuring its sparking rate >=98%, hardness value is 157HV, and has good erosion resistance.
Embodiment 7:
Each component concentration of sparking alloy: lanthanum 13kg cerium 13kg, iron 9kg, zinc 67kg, manganese 0.5kg, aluminium 1kg.
Its preparation method:
(1) above-mentioned each component is cut into fritter;
(2) each component is dropped in the smelting furnace together, carry out high melt then;
(3) treat the fusing of each component, adopt induction stirring to mix after, the cooling ingot casting of coming out of the stove can obtain the mishmetal sparking alloy of finished product.
Through measuring its sparking rate >=98%, hardness value is 163HV, and has good erosion resistance.
Embodiment 8:
Each component concentration of sparking alloy: lanthanum 13kg, cerium 14kg, iron 7kg, zinc 65kg, manganese 2kg, aluminium 1kg.
Its preparation method:
(1) above-mentioned each component is cut into fritter;
(2) each component is dropped in the smelting furnace together, carry out high melt then;
(3) treat the fusing of each component, adopt induction stirring to mix after, the cooling ingot casting of coming out of the stove can obtain the mishmetal sparking alloy of finished product.
Through measuring its sparking rate >=98%, hardness value is 155HV, and has good erosion resistance.
Embodiment 9:
Each component concentration of sparking alloy: lanthanum 13kg, cerium 12kg, iron 10kg, zinc 69kg, manganese 0.8kg, aluminium 1.2kg.
Its preparation method:
(1) above-mentioned each component is cut into fritter;
(2) each component is dropped in the smelting furnace together, carry out high melt then;
(3) treat the fusing of each component, adopt induction stirring to mix after, the cooling ingot casting of coming out of the stove can obtain the mishmetal sparking alloy of finished product.
Through measuring its sparking rate >=98%, hardness value is 169HV, and has good erosion resistance.
Claims (4)
1. a mixed rare-earth sparking alloy is characterized in that, its component comprises lanthanum, cerium, iron, zinc, manganese and aluminium; The parts by weight of each component are respectively: 12～13 parts of lanthanums, 12～14 parts of ceriums, 7～10 parts of iron, 65～70 parts on zinc, 0.3～2 part in manganese, 0.5～1.5 part in aluminium.
2. mishmetal sparking alloy according to claim 1 is characterized in that, the parts by weight of described each component are: 12～13 parts of lanthanums, 13～14 parts of ceriums, 8～9 parts of iron, 66～68 parts on zinc, 0.1～1.5 part in manganese, 0.5～1 part in aluminium.
3. mishmetal sparking alloy according to claim 1 and 2 is characterized in that, the parts by weight of described each component are: 12 parts of lanthanums, 13 parts of ceriums, 9 parts of iron, 67 parts on zinc, 0.6 part in manganese, 0.4 part in aluminium.
4. a method for preparing like the arbitrary described mishmetal sparking alloy of claim 1-3 is characterized in that, this method may further comprise the steps successively:
(1) the parts by weight ratio according to each component takes by weighing raw material lanthanum, cerium, iron, zinc, manganese and aluminium, then each component is cut into fritter;
(2) each component is dropped in the smelting furnace together, carry out high melt then;
(3) treat the fusing of each component, adopt induction stirring to mix after, the cooling ingot casting of coming out of the stove can obtain the mishmetal sparking alloy of finished product.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102978504A (en) * | 2012-12-17 | 2013-03-20 | 李宏伟 | Inflammable alloy and preparation method thereof |
| CN102978503A (en) * | 2012-12-17 | 2013-03-20 | 李宏伟 | Inflammable sparking alloy and preparation method thereof |
| CN102978502A (en) * | 2012-12-17 | 2013-03-20 | 李宏伟 | Rare-earth lanthanide series sparking alloy and preparation method thereof |
| CN106834879A (en) * | 2015-12-03 | 2017-06-13 | 黄波 | A kind of pyrophoric alloy of element containing praseodymium and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85106015A (en) * | 1985-07-23 | 1987-01-21 | 上海跃龙化工厂 | Mixed rare earth of lanthanum and cerium |
| CN1233544A (en) * | 1998-04-29 | 1999-11-03 | 三德金属工业株式会社 | Method for mfg. ignition alloy for lighter |
-
2012
- 2012-08-20 CN CN2012102959413A patent/CN102787257A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85106015A (en) * | 1985-07-23 | 1987-01-21 | 上海跃龙化工厂 | Mixed rare earth of lanthanum and cerium |
| CN1233544A (en) * | 1998-04-29 | 1999-11-03 | 三德金属工业株式会社 | Method for mfg. ignition alloy for lighter |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102978504A (en) * | 2012-12-17 | 2013-03-20 | 李宏伟 | Inflammable alloy and preparation method thereof |
| CN102978503A (en) * | 2012-12-17 | 2013-03-20 | 李宏伟 | Inflammable sparking alloy and preparation method thereof |
| CN102978502A (en) * | 2012-12-17 | 2013-03-20 | 李宏伟 | Rare-earth lanthanide series sparking alloy and preparation method thereof |
| CN102978504B (en) * | 2012-12-17 | 2014-07-23 | 李宏伟 | Inflammable alloy and preparation method thereof |
| CN102978503B (en) * | 2012-12-17 | 2014-08-13 | 李宏伟 | Inflammable sparking alloy and preparation method thereof |
| CN102978502B (en) * | 2012-12-17 | 2014-09-17 | 李宏伟 | Rare-earth lanthanide series sparking alloy and preparation method thereof |
| CN106834879A (en) * | 2015-12-03 | 2017-06-13 | 黄波 | A kind of pyrophoric alloy of element containing praseodymium and preparation method thereof |
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Application publication date: 20121121 |