CN102899529A - Pyrophoric alloy and production method - Google Patents
Pyrophoric alloy and production method Download PDFInfo
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- CN102899529A CN102899529A CN2012102855363A CN201210285536A CN102899529A CN 102899529 A CN102899529 A CN 102899529A CN 2012102855363 A CN2012102855363 A CN 2012102855363A CN 201210285536 A CN201210285536 A CN 201210285536A CN 102899529 A CN102899529 A CN 102899529A
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Abstract
The invention discloses a pyrophoric alloy and a production method, which comprises the following components by mass percentage: 25-27% of cerium, 6-9% of iron, 64-68% of zinc, 0.1-3% of manganese and 0.5-1.5% of aluminum; and the optimal mass percentage of each component is characterized in that 26% of cerium, 8% of iron, 65% of zinc, 0.5% of manganese and 0.5% of aluminum. The production method comprises the following steps: 1) weighting cerium, iron, zinc, manganese and aluminum according to the mass percentage and cutting each component into small blocks; 2) placing each component in a smelting furnace for smelting under high temperature; 3) employing electromagnetic stirring and uniform mixing after smelting each component, taking the components out of the smelting furnace, and cooling and ingoting to obtain the pyrophoric alloy. The pyrophoric alloy has the advantages of less rare earth usage amount, low production cost, high product quality, stable performance, low ignition point and strong abrasion performance.
Description
Technical field
The invention belongs to the alloy preparation field, related in particular to a kind of sparking alloy and preparation method thereof that can be used in industry and the daily life.
Technical background
The rare earth sparking alloy has widely purposes in industry and daily life, in daily life, the rare earth sparking alloy is mainly used in flint stone, is the important sources of lighter ignition.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 bullet 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 ignitor etc.
Traditional rare earth sparking alloy is generally synthetic by rare earth or mishmetal, iron, magnesium, copper etc. and since in the alloy content of RE often more than 70%, so that the cost of alloy is very expensive; And very easily oxidation of rare earth element, the content in alloy is larger, because its oxidation is larger on the impact of quality product, reduces rare earth element 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 object of the invention is to for the deficiencies in the prior art, provide under a kind of prerequisite guaranteeing 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 achieve these goals, the present invention has adopted following technical scheme: a kind of sparking alloy, its component comprises cerium, iron and zinc, manganese, aluminium.The weight fraction of each component is: cerium 25～27%, iron 7～9%, zinc 64～68%, manganese 0.1～3%, aluminium 0.5～1.5%.
The weight fraction of described each component is preferably: cerium 25～27%, iron 8～9%, zinc 65～68%, manganese 0.4～1.5%, aluminium 0.5～1.0%.The weight fraction of described each component is more preferably: cerium 26%, iron 8%, zinc 65%, manganese 0.5%, aluminium 0.5%.The method method for preparing above-mentioned sparking alloy may further comprise the steps successively:
(1) the weight fraction ratio according to each component takes by weighing raw material cerium, iron and zinc, then each component is cut into fritter; Particle diameter 0.3～0.6cm is advisable.
(2) each component is dropped in the smelting furnace together, then carry out high melt; Furnace temperature is more than 900 ℃;
(3) after the fusing of each component, mixing, the cooling ingot casting of coming out of the stove can obtain the sparking alloy of finished product.
Rare earth element in the alloy and Zn, Fe etc. generate the intermetallic compound of low ignition point; The adding of the Fe that part is unnecessary and Zn generate hard crisp FeZn compound, play the effect of the intensity of strengthening alloy; Zn has preferably ductility as the matrix of alloy, so that the press workability of alloy can improve; A small amount of Mn can play the effect of crystal grain thinning; A small amount 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 6.7g/cm3～6.9g/cm3,590 ℃～640 ℃ of fusing points (t), hardness (HV) 150～170, sparking rate 〉=98%.
3. burning-point is low, wear resistance is strong; Since the increase of zinc content, the melting point depression of alloy, ductility is good, and (zinc is just as micro-addition, to carry heavy alloyed density and corrosion resistance nature in traditional rare earth sparking alloy.) corrosion resistance nature of alloy obviously is better than the traditional rare earth sparking alloy.
Embodiment
The present invention will be further described below in conjunction with specific embodiment.
Embodiment 1:
Each component concentration of sparking alloy: cerium 260g, iron 80g, zinc 650g, manganese 5g, aluminium 5g.
Its preparation method:
(1) above-mentioned each component is cut into fritter;
(2) each component is dropped in the smelting furnace together, then carry out high melt;
(3) after the fusing of each component, mixing, the cooling ingot casting of coming out of the stove can obtain the sparking alloy of finished product.
Its sparking rate 〉=99% after measured, hardness value is 164HV, and has good erosion resistance.
Embodiment 2:
Each component concentration of sparking alloy: cerium 260g, iron 70g, zinc 650g, manganese 10g, aluminium 10g.
Its preparation method:
(1) above-mentioned each component is cut into fritter;
(2) each component is dropped in the smelting furnace together, then carry out high melt;
(3) after the fusing of each component, mixing, the cooling ingot casting of coming out of the stove can obtain the sparking alloy of finished product.
Its sparking rate 〉=98% after measured, hardness value is 162HV, and has good erosion resistance.
Embodiment 3:
Each component concentration of sparking alloy: cerium 250g, iron 70g, zinc 670, manganese 4g, aluminium 6g.
Its preparation method:
(1) above-mentioned each component is cut into fritter;
(2) each component is dropped in the smelting furnace together, then carry out high melt;
(3) after the fusing of each component, mixing, the cooling ingot casting of coming out of the stove can obtain the sparking alloy of finished product.
Its sparking rate 〉=98% after measured,, hardness value is 160HV, and has good erosion resistance.
Embodiment 4:
Each component concentration of sparking alloy: cerium 270g, iron 70g, zinc 650g, manganese 3g, aluminium 7g.
Its preparation method:
(1) above-mentioned each component is cut into fritter;
(2) each component is dropped in the smelting furnace together, then carry out high melt;
(3) after the fusing of each component, mixing, the cooling ingot casting of coming out of the stove can obtain the sparking alloy of finished product.
Its sparking rate 〉=98% after measured, hardness value is 160HV, and has good erosion resistance.
Embodiment 5:
Each component concentration of sparking alloy: cerium 250g, iron 90g, zinc 650g, manganese 6g, aluminium 4g.
Its preparation method:
(1) above-mentioned each component is cut into fritter;
(2) each component is dropped in the smelting furnace together, then carry out high melt;
(3) after the fusing of each component, mixing, the cooling ingot casting of coming out of the stove can obtain the sparking alloy of finished product.
Its sparking rate 〉=98% after measured, hardness value is 167HV, and has good erosion resistance.
Embodiment 6:
Each component concentration of sparking alloy: cerium 255g, iron 75g, zinc 660g, manganese 4g, aluminium 6g.
Its preparation method:
(1) above-mentioned each component is cut into fritter;
(2) each component is dropped in the smelting furnace together, then carry out high melt;
(3) after the fusing of each component, mixing, the cooling ingot casting of coming out of the stove can obtain the sparking alloy of finished product.
Its sparking rate 〉=98% after measured, hardness value is 163HV, and has good erosion resistance.
Embodiment 7:
Each component concentration of sparking alloy: cerium 265g, iron 70g, zinc 655g, manganese 5g, aluminium 5g.
Its preparation method:
(1) above-mentioned each component is cut into fritter;
(2) each component is dropped in the smelting furnace together, then carry out high melt;
(3) after the fusing of each component, mixing, the cooling ingot casting of coming out of the stove can obtain the sparking alloy of finished product.
Its sparking rate 〉=98% after measured, hardness value is 158HV, and has good erosion resistance.
Embodiment 8:
Each component concentration of sparking alloy: cerium 254g, iron 76g, zinc 650g manganese 10g, aluminium 10g.
Its preparation method:
(1) above-mentioned each component is cut into fritter;
(2) each component is dropped in the smelting furnace together, then carry out high melt;
(3) after the fusing of each component, mixing, the cooling ingot casting of coming out of the stove can obtain the sparking alloy of finished product.
Its sparking rate 〉=98% after measured, hardness value is 159HV, and has good erosion resistance.
Embodiment 9:
Each component concentration of sparking alloy: cerium 260g, iron 70g, zinc 654g, manganese 8g, aluminium 8g.
Its preparation method:
(1) above-mentioned each component is cut into fritter;
(2) each component is dropped in the smelting furnace together, then carry out high melt;
(3) after the fusing of each component, mixing, the cooling ingot casting of coming out of the stove can obtain the sparking alloy of finished product.
Its sparking rate 〉=98% after measured, hardness value is 156HV, and has good erosion resistance.
Claims (4)
1. a sparking alloy is characterized in that, its component comprises cerium, iron and zinc, and the weight fraction of each component is: cerium 25～27%, iron 7～9%, zinc 64～68%, manganese 0.1～3%, aluminium 0.5～1.5%.
2. sparking alloy according to claim 1 is characterized in that, the weight fraction of described each component is: cerium 25～27%, iron 8～9%, zinc 65～68%, manganese 0.4～1.5%, aluminium 0.5～1.0%.
3. sparking alloy according to claim 1 and 2 is characterized in that, the weight fraction of described each component is: cerium 26%, iron 8%, zinc 65%, manganese 0.5%, aluminium 0.5%.
4. method for preparing such as the arbitrary described sparking alloy of claim 1-3 is characterized in that the method may further comprise the steps successively:
(1) the weight fraction ratio according to each component takes by weighing raw material cerium, iron, zinc, manganese, aluminium, then each component is cut into fritter;
(2) each component is dropped in the smelting furnace together, then carry out high melt;
(3) after the fusing of each component, adopting induction stirring to mix, the cooling ingot casting of coming out of the stove can obtain the sparking alloy of finished product.
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| CN2012102855363A CN102899529A (en) | 2012-08-13 | 2012-08-13 | Pyrophoric alloy and production method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3894867A (en) * | 1974-01-09 | 1975-07-15 | Us Navy | Incendiary alloys existing as a dispersion of incendiary particles in a non-incendiary atmospheric attack-resistant matrix |
| JPS5579851A (en) * | 1978-12-08 | 1980-06-16 | Santoku Kinzoku Kogyo Kk | Ignition alloy for lighter |
| 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 |
| CN1233538A (en) * | 1998-04-29 | 1999-11-03 | 三德金属工业株式会社 | Method for mfg. ignition alloy for lighter |
| CN101386925A (en) * | 2008-09-12 | 2009-03-18 | 邢台鑫晖铜业特种线材有限公司 | Cu-Cr-Zr alloy preparation technology for contact wire |
-
2012
- 2012-08-13 CN CN2012102855363A patent/CN102899529A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3894867A (en) * | 1974-01-09 | 1975-07-15 | Us Navy | Incendiary alloys existing as a dispersion of incendiary particles in a non-incendiary atmospheric attack-resistant matrix |
| JPS5579851A (en) * | 1978-12-08 | 1980-06-16 | Santoku Kinzoku Kogyo Kk | Ignition alloy for lighter |
| 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 |
| CN1233538A (en) * | 1998-04-29 | 1999-11-03 | 三德金属工业株式会社 | Method for mfg. ignition alloy for lighter |
| CN101386925A (en) * | 2008-09-12 | 2009-03-18 | 邢台鑫晖铜业特种线材有限公司 | Cu-Cr-Zr alloy preparation technology for contact wire |
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Application publication date: 20130130 |