CN1896333A - Production of superthick foaming nickel or copper - Google Patents
Production of superthick foaming nickel or copper Download PDFInfo
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- CN1896333A CN1896333A CN 200610044768 CN200610044768A CN1896333A CN 1896333 A CN1896333 A CN 1896333A CN 200610044768 CN200610044768 CN 200610044768 CN 200610044768 A CN200610044768 A CN 200610044768A CN 1896333 A CN1896333 A CN 1896333A
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Abstract
The present invention discloses a preparation process of a new type of super-thick nickel or copper foam with a different thickness from the common nickel foam. The process is characterized by the following steps: conductive treatment of the mould core, electrodeposition of the conductive mould core and pyrolytic oxidation and reduction. The conductive treatment includes presoaking, gum dipping, membrane removing, pressing, drying and curing of the mould core to make it conductive. The electrodeposition step refers to the electroforming of the conductive mould core by electrodiposition to form nickel or copper foam of different thickness. The pyrolytic oxidation and reduction includes removing the spongy skeleton inside the foam, further high temperature oxidation and reduced reduce sintering to prepare copper or nickel foam with good capability. The super-thick nickel or copper foam prepared can be applied to the production and filtration of the power batteries, or the carrier of catalyst and photo-catalyst.
Description
(1) technical field under
The present invention relates to the preparation method of a kind of superthick foaming nickel or copper, be specifically related to the preparation method that a kind of thickness is different from the type material of regular foam nickel.
(2) background technology
Regular foam nickel material such as spongy foam nickel material are as having porous metallic nickel web plate, just can be used as battery, the collector of negative plate and the carrier of active substance, when making the high tension battery battery lead plate, utilize these holes, plate active material is fully used, reduce the internal resistance of cell, the augmenting response area, improve battery performance, but because the manufacture craft of regular foam nickel, composition is formed, the restriction of thickness, to improving the capacity of battery, charging and discharging capabilities, discharging currents etc. have big difficulty, are difficult to adapt to the growth requirement of present power cell, also can't adapt to filtering material, the requirement of support of the catalyst.
(3) summary of the invention
The present invention provides a kind of nickel foam (copper) of high thickness in order to remedy the deficiencies in the prior art, can make high-performance power cell, support of the catalyst, mechanical damping material and noise reduction, filtration, anti-biotic material.
The present invention is achieved through the following technical solutions:
The preparation method of a kind of superthick foaming nickel or copper, its special character is: comprise the steps:
(1) core rod conductionization: the conduction core rod is spared, dries, solidify to form to core rod through preimpregnation, impregnation, membrane removal, pressure;
(2) galvanic deposit: core rod carries out electroforming in the galvanic deposit mode after the conductionization processing, forms the nickel foam or the copper of different thickness;
(3) pyrolysis redox: the sponge skeleton that will still remain in nickel foam or copper inside is removed by naked light incendiary method, and further high temperature oxidation process is again reduced sintering then under atmosphere of hydrogen, obtain well behaved nickel foam or copper.
The core rod conductionization process of described step (1) is as follows:
The a preimpregnation: preimpregnation is a hydrophilicity-imparting treatment process before the impregnation, and presoak can be conductive resin or ammoniacal liquor diluent;
The b impregnation: conductive resin is that high-purity superfine graphite is dispersed in formed colloidal solution in the pure water, and its solid content is greater than 9%, and graphite powder diameter is less than 1 micron, and stablizer is ammoniacal liquor (NH3H2O);
The c membrane removal: the accompanying unnecessary conductive resin amount of sponge behind the impregnation is removed in pair roller extruding;
D presses even: pressing even process is for after satisfying the conductive sponge oven dry, satisfies certain conductive capability;
The e oven dry: bake out temperature is 45 ℃-63 ℃;
F solidifies: be 4 hours set time, and solidification value polyester type sponge is 120 ℃, and the polyether-type sponge is 80 ℃.
The method that adopts vacuum sputtering during the processing of described step (1) core rod conductionization is plating one deck nickel or copper in advance.
The product that described galvanic deposit forms, thickness is at 3.5～15mm.
Method of the present invention can be prepared superthick foaming nickel (copper), is used for manufacturing, filtration and the catalyzer of power cell and the carrier of photocatalyst.
(4) description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing.
Fig. 1 is the preparation method's of superthick foaming nickel of the present invention or copper process flow sheet;
Fig. 2 is the conduction processing technological flow figure of core rod of the present invention;
Fig. 3 is the process flow sheet of galvanic deposit of the present invention;
Fig. 4 is the principle of work sketch of galvanic deposit of the present invention;
Fig. 5 is the redox process flow sheet of pyrolysis of the present invention.
(5) embodiment
The process for producing of this embodiment as shown in Figure 1, detailed process is as follows:
1) core rod conductionization
Core rod can be polyurethane, polyester type or polyether-type, this material is that end has the macromolecular compound that contains many multiple-NH-C-O-group on main chain that forms behind the polyester polyol of two above hydroxyls or polyether glycol and vulcabond, water, tensio-active agent, catalyzer and other additive polymerization reaction take places, is commonly called as the polyurethane sponge; Core rod also can be Web materials of man-made fiber such as nylon, polypropylene or cotton textured fiber textiles etc.
The conduction treatment process process of core rod as shown in Figure 2.
Whole process is a mechanized continuous productive process.
1, preimpregnation; Preimpregnation is a hydrophilicity-imparting treatment process before the impregnation, and presoak can be conductive resin or ammoniacal liquor diluent, can reach wetting sponge and squeeze the effect of catching up with bubble by preimpregnation.
2, impregnation: conductive resin is that high-purity superfine graphite is dispersed in formed colloidal solution in the pure water, its solid content is greater than 9%, graphite powder diameter is less than 1 micron, stablizer is ammoniacal liquor (NH3H2O), what the impregnation operation adopted is mechanical type pair roller extrusion process, and immersing glue process need be controlled processing parameters such as the pH value, temperature, solid content of conductive resin, and the additional circulation device is to guarantee the impregnation homogeneity simultaneously, also can add ultrasonic oscillation device, help colloidal evenly and the inside and outside homogeneity of impregnation.
3, membrane removal: remove membrane process and be the pair roller extruding and remove the accompanying unnecessary conductive resin of sponge behind the impregnation, prevent that sponge from including glue and too much causing closed pore, plug-hole phenomenon.
4, pressure is spared: pressing even process is for after satisfying the conductive sponge oven dry, satisfies certain conductive capability and requires necessary operation, and resistance can reach processing requirement by the snap-in force of adjustment membrane removal, the even roller of pressure.
5, oven dry: sponge must be dried after above-mentioned processing immediately, and to reach the purpose of typing, oven dry back sponge requires dry consistent, and open and flat non-wrinkled, resistance meets processing requirement.Bake out temperature requires 45 ℃-63 ℃.
6, solidify: the sponge after will drying places and keeps certain hour for solidifying under the certain temperature.The solidified purpose is to improve the bonding force of conductive resin with sponge, and be 4 hours set time, and solidification value polyester type sponge is 120 ℃, and the polyether-type sponge is 80 ℃.
The method that the processing of core rod conductionization also can be adopted vacuum sputtering is plating one deck nickel or copper in advance.
2) galvanic deposit
Core rod carries out electroforming in special galvanic deposit mode after the conductionization processing, form the nickel foam or the copper of different thickness, and the galvanic deposit mode is the zonal mode of working continuously of serialization, also can be the block mode of operation that is interrupted.Process flow sheet as shown in Figure 3.
1. power supply: adopt the monopulse electroplating power supply.
2. area density controller: with area density controller on-line Control area density homogeneity.
3. electroplate liquid: electroplate liquid mainly is made up of single nickel salt, nickelous chloride, boric acid etc., adds auxiliary material to strengthen the smooth finish of product, improves hardness.
4. the automatic closely knit device of anode: the process for producing of superthick foaming nickel adopts unique automatic compacting apparatus of anode, has both reduced labour intensity, has improved working efficiency, has solved the problem of area density lack of homogeneity again.
5. galvanic deposit: in electrodeposition process, adopt unique electrodeposition apparatus, make superthick foaming nickel be able to continuous automatic production, finish the work in-process of superthick foaming nickel again through clean, air-dry etc.Its principle of work sketch as shown in Figure 4.
The processing parameter of galvanic deposit tank liquor of the present invention is as follows:
Single nickel salt (NiSO47H2O) 150-400g/l
Nickelous chloride (NiCl26H2O) 15-60g/l
Boric acid (H3BO3) 30-45g/l
Additive
PH value 4.0-4.5
Temperature 40-60 ℃
3) pyrolysis redox
This technological process is removed the sponge skeleton that still remains in nickel foam inside by naked light incendiary method, thermolysis process is divided into electric heating process, combustion of hydrogen method.The nickel foam of crossing through pyrolysis processing (copper) is residue, the carbon deposit of high temperature oxidation process to remove sponge further, reduces sintering then under atmosphere of hydrogen, improves its crystalline network, finally obtains well behaved nickel foam (copper).Its technical process as shown in Figure 5.
Claims (4)
1. the preparation method of superthick foaming nickel or copper is characterized in that: comprise the steps:
(1) core conductionization: the conduction core rod is spared, dries, solidify to form to core rod through preimpregnation, impregnation, membrane removal, pressure;
(2) galvanic deposit: core rod carries out electroforming in the galvanic deposit mode after the conductionization processing, forms the nickel foam or the copper of different thickness;
(3) pyrolysis redox: the sponge skeleton that will still remain in nickel foam or copper inside is removed by naked light incendiary method, and further high temperature oxidation process is again reduced sintering then under atmosphere of hydrogen, obtain well behaved nickel foam or copper.
2. the preparation method of superthick foaming nickel according to claim 1 or copper is characterized in that: the core rod conductionization process of described step (1) is as follows:
The a preimpregnation: preimpregnation is a hydrophilicity-imparting treatment process before the impregnation, and presoak can be conductive resin or ammoniacal liquor diluent;
The b impregnation: conductive resin is that high-purity superfine graphite is dispersed in formed colloidal solution in the pure water, and its solid content is greater than 9%, and graphite powder diameter is less than 1 micron, and stablizer is ammoniacal liquor (NH3H2O);
The c membrane removal: the accompanying unnecessary conductive resin amount of sponge behind the impregnation is removed in pair roller extruding;
D presses even: pressing even process is for after satisfying the conductive sponge oven dry, satisfies certain conductive capability;
The e oven dry: bake out temperature is 45 ℃-63 ℃;
F solidifies: be 4 hours set time, and solidification value polyester type sponge is 120 ℃, and the polyether-type sponge is 80 ℃.
3. the preparation method of superthick foaming nickel according to claim 1 or copper is characterized in that: the method that adopts vacuum sputtering during the processing of described step (1) core rod conductionization is plating one deck nickel or copper in advance.
4. the preparation method of superthick foaming nickel according to claim 1 or copper is characterized in that: the product that described galvanic deposit forms, thickness is at 3.5～15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610044768 CN1896333A (en) | 2006-06-14 | 2006-06-14 | Production of superthick foaming nickel or copper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610044768 CN1896333A (en) | 2006-06-14 | 2006-06-14 | Production of superthick foaming nickel or copper |
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| CN1896333A true CN1896333A (en) | 2007-01-17 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100553733C (en) * | 2007-02-14 | 2009-10-28 | 中国科学院金属研究所 | A kind of preparation method of netted Cu antimicrobial filtering metallic material |
| CN103695968A (en) * | 2013-12-30 | 2014-04-02 | 菏泽天宇科技开发有限责任公司 | Production process capable of improving consistency of foamed nickel and used base material pretreatment device |
| CN103741173A (en) * | 2013-12-30 | 2014-04-23 | 菏泽天宇科技开发有限责任公司 | High-consistency foam nickel preparation equipment and preparation method |
| CN103789798A (en) * | 2014-01-08 | 2014-05-14 | 菏泽天宇科技开发有限责任公司 | Nickel foam production process |
| CN107419243A (en) * | 2017-07-03 | 2017-12-01 | 西北工业大学 | A kind of preparation method of open celled foam cupro-nickel composite |
| CN109848611A (en) * | 2019-02-01 | 2019-06-07 | 武汉理工大学 | A kind of preparation method of the Sn base Combined Welding tablet based on porous Ni/Cu alloy |
| CN111575755A (en) * | 2020-04-18 | 2020-08-25 | 无锡荣峻环保科技有限公司 | Preparation method of foam copper alloy with strong antibacterial effect |
| CN114959347A (en) * | 2022-06-20 | 2022-08-30 | 上海电力大学 | Device for preparing foamed nickel composite material |
-
2006
- 2006-06-14 CN CN 200610044768 patent/CN1896333A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100553733C (en) * | 2007-02-14 | 2009-10-28 | 中国科学院金属研究所 | A kind of preparation method of netted Cu antimicrobial filtering metallic material |
| CN103695968A (en) * | 2013-12-30 | 2014-04-02 | 菏泽天宇科技开发有限责任公司 | Production process capable of improving consistency of foamed nickel and used base material pretreatment device |
| CN103741173A (en) * | 2013-12-30 | 2014-04-23 | 菏泽天宇科技开发有限责任公司 | High-consistency foam nickel preparation equipment and preparation method |
| CN103695968B (en) * | 2013-12-30 | 2016-05-18 | 菏泽天宇科技开发有限责任公司 | Improve the conforming production technology of nickel foam and base material pretreatment unit used |
| CN103741173B (en) * | 2013-12-30 | 2016-08-17 | 菏泽天宇科技开发有限责任公司 | A kind of high concordance foam nickel preparation equipment and preparation method |
| CN103789798A (en) * | 2014-01-08 | 2014-05-14 | 菏泽天宇科技开发有限责任公司 | Nickel foam production process |
| CN107419243A (en) * | 2017-07-03 | 2017-12-01 | 西北工业大学 | A kind of preparation method of open celled foam cupro-nickel composite |
| CN109848611A (en) * | 2019-02-01 | 2019-06-07 | 武汉理工大学 | A kind of preparation method of the Sn base Combined Welding tablet based on porous Ni/Cu alloy |
| CN111575755A (en) * | 2020-04-18 | 2020-08-25 | 无锡荣峻环保科技有限公司 | Preparation method of foam copper alloy with strong antibacterial effect |
| CN114959347A (en) * | 2022-06-20 | 2022-08-30 | 上海电力大学 | Device for preparing foamed nickel composite material |
| CN114959347B (en) * | 2022-06-20 | 2023-09-22 | 上海电力大学 | Device for preparing foam nickel composite material |
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