CN103555987A - Method for manufacturing silver cadmium oxide material and product - Google Patents
Method for manufacturing silver cadmium oxide material and product Download PDFInfo
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- CN103555987A CN103555987A CN201310530067.1A CN201310530067A CN103555987A CN 103555987 A CN103555987 A CN 103555987A CN 201310530067 A CN201310530067 A CN 201310530067A CN 103555987 A CN103555987 A CN 103555987A
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Abstract
The invention discloses a method for manufacturing a silver cadmium oxide material. The method comprises the following steps: (a) preparing 10-30 percent of cadmium carbonate, 0.1-0.5 percent of nickel carbonate, 0.05-0.2 percent of manganese carbonate and the balance of silver nitrate; (b) dissolving by using excessive dilute nitric acid, dissolving the silver nitrate by using pure water, mixing and stirring; (c) preparing a saturated sodium carbonate solution; (d) adding the sodium carbonate solution into a mixed solution while stirring, so as to generate a precipitate; and stopping adding after the PH value of the solution reaches 11; (e) repeatedly washing the generated precipitate and drying; (f) heating to the temperature of 300-450 DEG C, and keeping the temperature; (g) introducing hydrogen after the temperature of the powder is lower than 60 DEG C, heating to the temperature of 250-320 DEG C, keeping the temperature, and then cooling to room temperature; (h) performing ball milling on the powder, sieving the powder by using a 200-meshes sieve; (i) oxidizing in a rotary furnace, introducing compressed air, heating to the temperature of 300 DEG C, keeping the temperature, and cooling to room temperature; (j) performing ball milling on the powder, sieving the powder by using the 200-meshes sieve, loading the powder in a mold for isostatic pressing; and (k) sintering the material for 2-3 hours, and performing extrusion forming for later use.
Description
Technical field
The present invention relates to a kind of manufacture method and product of alloy material, relate in particular to a kind of manufacture method and product of silver cadmium oxide material.
Background technology
As everyone knows, silver cadmium oxide material is a kind of application contact material very widely, is widely used in ignitron make and break contact, the air appliance contact of magneticstarter, high power relay, welding machine.And traditional technology is manufactured Agcdo alloy with powder metallurgic method or internal oxidation or by oxidation-power metallurgic method, although can obtain Cadmium oxide, organize more equally distributed alloy.But its anti-electrical wear and resistance fusion welding, arc extinguishing effect have to be strengthened.
Summary of the invention
The object of the invention is in order to overcome the deficiencies in the prior art, to provide higher, the anti-electrical wear of a kind of perveance and resistance fusion welding is better, contact resistance is low and manufacture method and the product of stable, arc extinguishing effect is strong a kind of silver cadmium oxide material.
The manufacture method of silver cadmium oxide material is as follows:
A, in proportion batching, weight percent is: cadmium carbonate 10-30%, nickelous carbonate 0.1-0.5%, manganous carbonate 0.05-0.2%, all the other are Silver Nitrate;
B, by above-mentioned cadmium carbonate, nickelous carbonate and manganous carbonate with excessive dilute nitric acid dissolution in same container, by appropriate amount of purified water, Silver Nitrate is dissolved, then by two kinds of solution mix and blends;
C, the configuration saturated solution of sodium carbonate of 40-80 ℃;
D, saturated solution of sodium carbonate is joined before in the mixing solutions of configuration, while add, stirs, generate to precipitate, in process, use PH test paper to test, until the pH value of whole solution stops adding after reaching 11;
E, the throw out of generation is rinsed repeatedly with pure water, and dry;
F, the throw out of oven dry is packed in rotary kiln and decomposed, be slowly heated to 300-450 ℃ and be incubated 1-3 hour, then power-off is cooling;
G, after powder is cooled to lower than 60 ℃, to passing into hydrogen in rotary kiln and being slowly heated to 250-320 ℃, and be incubated 5-8 hour, be then cooled to room temperature;
H, by cooled powder ball milling and cross 200 mesh sieves;
I, the powder sieving is packed in rotary kiln and is oxidized, pass into pressurized air and be slowly heated to 300 ℃ of insulations after 4 hours, be cooled to room temperature;
J, by cooled powder ball milling and cross 200 mesh sieves, pack the powder sieving into mould and wait static pressure;
K, by material sintering after 2-3 hour extrusion molding use.
Saidly in rotary kiln, pass into hydrogen, its hydrogen flowing quantity passing into is 1-5L/Min.
Saidly in rotary kiln, pass into pressurized air, its airshed passing into is 3-5L/Min.
The said static pressure that waits, its pressure is 200Mpa, dwell time 50-60S.
Said sintering, its sintering temperature is 830-850 ℃.
From technical scheme of the present invention, can find out, the present invention in material, adulterated uniformly nickel element and manganese element, the hotchpotch particle refinement being mixed to get with ionic forms, make the grain refining of silver in material, the tiny nickel of doping, manganese element particle can further improve the electrical contact performance of material; The present invention uses chemical deposition that Cadmium oxide is organized and is more tinyly more evenly distributed in alloy.The perveance of the material that the present invention makes improves, anti-electrical wear and resistance fusion welding is better, contact resistance is low and stable and arc extinguishing effect is strengthened, and has reached goal of the invention of the present invention completely.
Embodiment
The manufacture method of embodiment 1, a kind of silver cadmium oxide material is as follows:
A, in proportion batching, weight percent is: cadmium carbonate 10%, nickelous carbonate 0.1%, manganous carbonate 0.05%, all the other are Silver Nitrate;
B, by above-mentioned cadmium carbonate, nickelous carbonate and manganous carbonate with excessive dilute nitric acid dissolution in same container, by appropriate amount of purified water, Silver Nitrate is dissolved, then by two kinds of solution mix and blends;
C, the configuration saturated solution of sodium carbonate of 40-80 ℃;
D, saturated solution of sodium carbonate is joined before in the mixing solutions of configuration, while add, stirs, generate to precipitate, in process, use PH test paper to test, until the pH value of whole solution stops adding after reaching 11;
E, the throw out of generation is rinsed repeatedly with pure water, and dry;
F, the throw out of oven dry is packed in rotary kiln and decomposed, be slowly heated to 300 ℃ and be incubated 3 hours, then power-off is cooling;
G, after powder is cooled to lower than 60 ℃, in rotary kiln, pass into hydrogen, hydrogen flowing quantity 1L/Min be slowly heated to 250 ℃, and be incubated 8 hours, is then cooled to room temperature;
H, by cooled powder ball milling and cross 200 mesh sieves;
I, the powder sieving is packed in rotary kiln and is oxidized, pass into pressurized air, flow is 3L/Min and is slowly heated to 300 ℃ of insulations after 8 hours, is cooled to room temperature;
J, by cooled powder ball milling and cross 200 mesh sieves, pack the powder sieving into mould and wait static pressure;
K, by 850 ℃ of sintering for material after 2 hours extrusion molding use.
The manufacture method of embodiment 2, a kind of silver cadmium oxide material is as follows:
A, in proportion batching, weight percent is: cadmium carbonate 30%, nickelous carbonate 0.5%, manganous carbonate 0.2%, all the other are Silver Nitrate;
B, by above-mentioned cadmium carbonate, nickelous carbonate and manganous carbonate with excessive dilute nitric acid dissolution in same container, by appropriate amount of purified water, Silver Nitrate is dissolved, then by two kinds of solution mix and blends;
C, the configuration saturated solution of sodium carbonate of 40-80 ℃;
D, saturated solution of sodium carbonate is joined before in the mixing solutions of configuration, while add, stirs, generate to precipitate, in process, use PH test paper to test, until the pH value of whole solution stops adding after reaching 11;
E, the throw out of generation is rinsed repeatedly with pure water, and dry;
F, the throw out of oven dry is packed in rotary kiln and decomposed, be slowly heated to 450 ℃ and be incubated 1 hour, then power-off is cooling;
G, after powder is cooled to lower than 60 ℃, in rotary kiln, pass into hydrogen, hydrogen flowing quantity 5L/Min be slowly heated to 320 ℃, and be incubated 5 hours, is then cooled to room temperature;
H, by cooled powder ball milling and cross 200 mesh sieves;
I, the powder sieving is packed in rotary kiln and is oxidized, pass into pressurized air, flow is 5L/Min and is slowly heated to 300 ℃ of insulations after 4 hours, is cooled to room temperature;
J, by cooled powder ball milling and cross 200 mesh sieves, pack the powder sieving into mould and wait static pressure;
K, by 830 ℃ of sintering for material after 3 hours extrusion molding use.
The manufacture method of embodiment 3, a kind of silver cadmium oxide material is as follows:
A, in proportion batching, weight percent is: cadmium carbonate 20%, nickelous carbonate 0.3%, manganous carbonate 0.15%, all the other are Silver Nitrate;
B, by above-mentioned cadmium carbonate, nickelous carbonate and manganous carbonate with excessive dilute nitric acid dissolution in same container, by appropriate amount of purified water, Silver Nitrate is dissolved, then by two kinds of solution mix and blends;
C, the configuration saturated solution of sodium carbonate of 40-80 ℃;
D, saturated solution of sodium carbonate is joined before in the mixing solutions of configuration, while add, stirs, generate to precipitate, in process, use PH test paper to test, until the pH value of whole solution stops adding after reaching 11;
E, the throw out of generation is rinsed repeatedly with pure water, and dry;
F, the throw out of oven dry is packed in rotary kiln and decomposed, be slowly heated to 380 ℃ and be incubated 2 hours, then power-off is cooling;
G, after powder is cooled to lower than 60 ℃, in rotary kiln, pass into hydrogen, hydrogen flowing quantity 3L/Min be slowly heated to 280 ℃, and be incubated 7 hours, is then cooled to room temperature;
H, by cooled powder ball milling and cross 200 mesh sieves;
I, the powder sieving is packed in rotary kiln and is oxidized, pass into pressurized air, flow is 4L/Min and is slowly heated to 300 ℃ of insulations after 4 hours, is cooled to room temperature;
J, by cooled powder ball milling and cross 200 mesh sieves, pack the powder sieving into mould and wait static pressure;
K, by 840 ℃ of sintering for material after 2.5 hours extrusion molding use.
Claims (6)
1. a manufacture method for silver cadmium oxide material, is characterized in that: carry out as follows
(a) prepare burden in proportion, weight percent is: cadmium carbonate 10-30%, and nickelous carbonate 0.1-0.5%, manganous carbonate 0.05-0.2%, all the other are Silver Nitrate;
(b) by above-mentioned cadmium carbonate, nickelous carbonate and manganous carbonate with excessive dilute nitric acid dissolution in same container, by appropriate amount of purified water, Silver Nitrate is dissolved, then by two kinds of solution mix and blends;
(c) configure the saturated solution of sodium carbonate of 40-80 ℃;
(d) saturated solution of sodium carbonate is joined in the mixing solutions of configuration before, while add, stir, generate precipitation, in process, with PH test paper, test, until the pH value of whole solution stops adding after reaching 11;
(e) throw out of generation is rinsed repeatedly with pure water, and dry;
(f) throw out of oven dry is packed in rotary kiln and decomposed, be slowly heated to 300-450 ℃ and be incubated 1-3 hour, then power-off is cooling;
(g) after powder is cooled to lower than 60 ℃, in rotary kiln, pass into hydrogen and be slowly heated to 250-320 ℃, and being incubated 5-8 hour, be then cooled to room temperature;
(h) cooled powder ball milling is also crossed to 200 mesh sieves;
(i) the powder sieving is packed in rotary kiln and is oxidized, pass into pressurized air and be slowly heated to 300 ℃ of insulations after 4 hours, be cooled to room temperature;
(j) cooled powder ball milling is also crossed to 200 mesh sieves, pack the powder sieving into mould and wait static pressure;
(k) by the extrusion molding use after 2-3 hour of material sintering.
2. the manufacture method of a kind of silver cadmium oxide material according to claim 1, is characterized in that: saidly in rotary kiln, pass into hydrogen, its hydrogen flowing quantity passing into is 3-5L/Min.
3. the manufacture method of a kind of silver cadmium oxide material according to claim 1, is characterized in that: saidly in rotary kiln, pass into pressurized air, its airshed passing into is 3-5L/Min.
4. the manufacture method of a kind of silver cadmium oxide material according to claim 1, is characterized in that: the said static pressure that waits, its pressure is 200Mpa, dwell time 50-60S.
5. the manufacture method of a kind of silver cadmium oxide material according to claim 1, is characterized in that: said sintering, its sintering temperature is 830-850 ℃.
6. a silver cadmium oxide material, is characterized in that: by the resulting product of method claimed in claim 1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310530067.1A CN103555987B (en) | 2013-11-01 | 2013-11-01 | Method for manufacturing silver cadmium oxide material and product |
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| CN201310530067.1A CN103555987B (en) | 2013-11-01 | 2013-11-01 | Method for manufacturing silver cadmium oxide material and product |
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| CN103555987A true CN103555987A (en) | 2014-02-05 |
| CN103555987B CN103555987B (en) | 2015-05-20 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS638217A (en) * | 1986-06-26 | 1988-01-14 | ドルニエ、ジステム、ゲゼルシャフト、ミット、ベシュレンクテル、ハフツング | Manufacture of aqueous suspension containing high concentration silver salt-tin salt |
| US4874430A (en) * | 1988-05-02 | 1989-10-17 | Hamilton Standard Controls, Inc. | Composite silver base electrical contact material |
| CN1425781A (en) * | 2001-12-14 | 2003-06-25 | 贵研铂业股份有限公司 | Silver base electric contact composite material |
| CN102031409A (en) * | 2011-01-05 | 2011-04-27 | 河北工业大学 | Silver-boron nitride-cerium switch apparatus contact material and preparation method thereof |
| CN102142325A (en) * | 2010-12-30 | 2011-08-03 | 温州宏丰电工合金股份有限公司 | Preparation method of particle direction-arrangement enhanced silver-based oxide electrical contact material |
-
2013
- 2013-11-01 CN CN201310530067.1A patent/CN103555987B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS638217A (en) * | 1986-06-26 | 1988-01-14 | ドルニエ、ジステム、ゲゼルシャフト、ミット、ベシュレンクテル、ハフツング | Manufacture of aqueous suspension containing high concentration silver salt-tin salt |
| US4874430A (en) * | 1988-05-02 | 1989-10-17 | Hamilton Standard Controls, Inc. | Composite silver base electrical contact material |
| CN1425781A (en) * | 2001-12-14 | 2003-06-25 | 贵研铂业股份有限公司 | Silver base electric contact composite material |
| CN102142325A (en) * | 2010-12-30 | 2011-08-03 | 温州宏丰电工合金股份有限公司 | Preparation method of particle direction-arrangement enhanced silver-based oxide electrical contact material |
| CN102031409A (en) * | 2011-01-05 | 2011-04-27 | 河北工业大学 | Silver-boron nitride-cerium switch apparatus contact material and preparation method thereof |
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| CN103555987B (en) | 2015-05-20 |
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Granted publication date: 20150520 Termination date: 20181101 |