CN103205604A - Nickel-iron alloy and method for preparing same - Google Patents
Nickel-iron alloy and method for preparing same Download PDFInfo
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- CN103205604A CN103205604A CN2012100107902A CN201210010790A CN103205604A CN 103205604 A CN103205604 A CN 103205604A CN 2012100107902 A CN2012100107902 A CN 2012100107902A CN 201210010790 A CN201210010790 A CN 201210010790A CN 103205604 A CN103205604 A CN 103205604A
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Abstract
The present invention relates to the technical field of electroformed alloy codeposition, and discloses a nickel-iron alloy. The nickel-iron alloy comprises 40-55% of iron, and 45-60% of nickel. The nickel-iron alloy further comprises cobalt in an amount of <= 3%. The nickel-iron alloy has characteristics of high magnetism controlling performance, high ductility and toughness, bright material surface, and board uniformity less than 5%, etc. At the same time, the present invention also provides an electroforming method for preparing the nickel-iron alloy. By employing the electroforming method, a nickel-iron alloy mask with a higher iron content can be obtained, the production cost is low, and the controllability is better.
Description
Technical field
The invention belongs to field of functional materials, be specifically related to a kind of low bulk Rhometal with high magnetic characteristics and preparation method thereof.
Background technology
In the electroforming material field, electroformed nickel is because good characteristics such as its low-stress, flexibility, ductility, light obtain the favor of printing industry gradually, the hardness height of electroformed nickel material simultaneously, long service life; Certain fringing effect is arranged, can control tin cream effectively not to running off all around.But because the magnetic property of electroformed nickel material is not too high, some for example the application on the storing unit of computer and electronic memory, the recording unit have certain restricted.Simultaneously the electroformed nickel material is active relatively poor, and in making processes as the special situation of generation, such as outage, when electroforming again, coating can produce layering.In making the electroformed nickel materials process, because the electroform bath less stable, impurity is bigger to the influence of coating simultaneously.While, the cost of electroformed nickel was also along with increase along with the rising of the material price of nickel.Therefore, be badly in need of a kind of performance classes like or the performance better material replace the electroformed nickel material, also solve simultaneously the problem of electroformed nickel material some shortcomings, adopt Rhometal usually, but the component proportions of ferronickel is the key factor that determines to constitute the functional material premium properties.
Simultaneously, traditional Rhometal production method is to adopt pyrogenic process to smelt nickel oxide ore, be divided at different reducing process: blast furnace reduction and reduction shaft furnace-electrosmelting-purifying method, other preparation methods such as direct electrosmelting-purifying method are as cold plastic deformation, spatter film forming, two roller quench etc.Yet above-mentioned preparation method exists defective, as: be difficult to formation and possess high-density and low hole Rhometal; In technological operation, be not easy to control the component content of material; Productivity is low, is difficult for a large amount of preparation film class materials; The required equipment investment is higher relatively.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention provide a kind of than the electroformed nickel performance classes like or performance better material and preparation method thereof, this material has control magnetic property height, plasticity, toughness height, material surface brighting, the plate surface uniformity 5% with characteristic such as interior, and its preparation method production cost is low, and controllability is strong.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of Rhometal, the middle iron level of described Rhometal is 40～55%, and described Rhometal also comprises cobalt, and its content is≤3%.
Preferred as technique scheme, the surface brightness of described Rhometal is the one-level light, described plate surface uniformity≤5%.
Preferred as technique scheme, described method comprises: select stainless steel core, washing, activation, electroforming, demoulding, peel off, the coating post-processing operation.
Preferred as technique scheme, described electroforming is specially, and as electroforming solution, metal anode is nickel block with sulfate system, is placed in the described electroforming solution, forms Rhometal in the negative plate galvanic deposit;
The composition range of described electroforming solution is:
Single nickel salt 180～200g/L
Nickelous chloride 30～50g/L
Boric acid 40～50g/L
Ferrous sulfate 25～40g/L
Heptahydrate 2.85 ~ 3.34g/L.
Preferred as technique scheme, the composition that also adds in the described electroforming solution has:
Stablizer 0.5～1ml/L
Wetting agent 0.5～1ml/L
Agent 1～5ml/L walks.
Preferred as technique scheme, described electroforming solution:
pH 3.4～3.8
40～45 ℃ of temperature
Current density value 1～3A/dm
2
Preferred as technique scheme, also be provided with the anode baffle parallel with described negative plate between described electroforming solution inner cathode and the anode, described anode baffle is provided with a plurality of perforates that the casting solution of can powering passes through, and described anode baffle is used for the homogeneity of control ferro-nickel alloy plating.
Preferred as technique scheme, described washing operation specifically comprises oil removing, pickling, sandblast and ultrasonic embathing.
Preferred as technique scheme, described activation act is specially: soak time 1 ~ 8min, acid equivalent 1 ~ 2mol/L, 30～40 ℃ of temperature.
Preferred as technique scheme, described stripping operation is specially: demoulding time 5～8min, demoulding number of times 1～3 time, 50～60 ℃ of demoulding temperature, alkali equivalent 1～2mol/L.
(3) beneficial effect
A kind of Rhometal that technique scheme provides, the middle iron level of described Rhometal is 40～55%, and nickel content is 45～60%, and described Rhometal also comprises cobalt, and its content is≤3%.This material has control magnetic property height, plasticity, toughness height, material surface brighting, plate surface uniformity 5% with characteristic such as interior; The present invention simultaneously also provides a kind of electrocasting method for preparing this kind Rhometal, and this electrocasting method can obtain the higher Rhometal mask plate of iron-holder, and production cost is low, and controllability is strong.
Description of drawings
Fig. 1 is the Rhometal preparation method's of the embodiment of the invention process flow diagram.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for explanation the present invention, but are not used for limiting the scope of the invention.
A kind of Rhometal that the embodiment of the invention provides, the middle iron level of Rhometal is 40～55%, and nickel content is 45～60%, and described Rhometal also comprises cobalt, and its content is≤3%.The surface brightness of Rhometal is the one-level light, plate surface uniformity≤5%.This Rhometal has control magnetic property height, plasticity, toughness height, material surface brighting, plate surface uniformity 5% with characteristic such as interior.Can effectively replace metallic nickel, Application Areas is extensive, and cost reduces greatly than metallic nickel.The interpolation of cobalt is magnetic, the hardness that can improve material.Characteristic based on cobalt: cobalt is ferromagnetic, and is similar with iron and nickel aspect electrochemical behaviors such as hardness, tensile strength, machining property, thermodynamic property.
Present embodiment also provides a kind of method for preparing above-mentioned Rhometal, in conjunction with Figure of description 1, it comprises: select the stainless steel core, the stainless steel core can be selected as 304 or 430 stainless steels, the principle of choosing is minute surface light and surperficial no marking for the stainless steel mandrel surface, thickness can select 1.8 or 2.0cm as the core material.Be the electroforming better effects if, need carry out following operation washing, activation, electroforming, demoulding operation to core.Concrete washing operation mainly comprises oil removing, pickling, sandblast and ultrasonic embathing.Core after the process washing is handled for the bonding force between increase coating and the core, need carry out activation treatment to core before the electroforming operation.Concrete activation parameter: soak time 1 ~ 8min, acid equivalent 1 ~ 2mol/L, 30～40 ℃ of temperature, electrotyping bath vibration frequency 20-60Hz, wobble frequency 30-50Hz, solution circulated time 30-80s, solution circulated 240s pitch time.Control soak time well, can be so that the better combination of coating and core, making it both is not easy to come off also easily peels off.
Core after overactivation can carry out the electroforming operation, but is can preferably once not wash operation again owing to existing the impurity substances in the activation act to be attached to mandrel surface when guaranteeing electroforming, and mandrel surface is cleaned again.
After above-mentioned steps, can carry out the electroforming step.As negative plate, nickel block is metal anode to the 430 or 304 material stainless steels of the wide size 600mm*800mm of the preferred plate face length of present embodiment as the electroforming core.
The Fe-Ni alloy electrodeposition belongs to unusual codeposition, the Fe(E that current potential is negative
0=-0.44V) is on the contrary than the Ni(E of current potential calibration
0=-0.25V) preferentially separated out, and makes alloying constituent wayward.In addition, different galvanic deposit parameters also has a significant impact alloying constituent as solution composition, current density, bath temperature, pH and additive, and control well the deposition layer composition be the preparation high-quality alloy material key.So the composition range of preferred electroforming solution is in the present embodiment:
Single nickel salt 180～200g/L
Nickelous chloride 30～50g/L
Boric acid 40～50g/L
Ferrous sulfate 25～40g/L
Heptahydrate 2.85 ~ 3.34g/L.
The addition manner of concrete ferro element is by ferrous sulfate being dissolved in the pure water, pouring in the electroforming solution after treating to dissolve fully.Thereby the interpolation of concrete cobalt element is calculated to adjust by cobalt contents in the Rhometal of actual needs preparation and is embodied.
In the Rhometal plating bath, Fe
2+Stablizer be very crucial, this is because in air or in the electroforming process, the Fe in the plating bath
2+Be oxidized to Fe3+ easily at anode, when pH surpasses 2.5 left and right sides, just might do not generate precipitation in having the plating bath of stablizer, the aspect is when using than high current density, because a large amount of hydrogen ion discharge cause Fe (OH) near the regional area of cathode surface in addition
3Precipitation take place, be adsorbed onto cathode surface and cause pin hole, burr and fragility.Therefore, in plating bath, must add a certain amount of Fe
2+The buffer reagent of stablizer and q.s just can make plating bath keep stable.Add the DNT function of stabilizer for to stablize plating bath in electroforming solution, what add in the present embodiment is stablizer, and it prevents Fe
2+Be oxidized to Fe
3+Concrete additive is formed and component content is:
Stablizer 0.5～1ml/L
Wetting agent 0.5～1ml/L
Agent 1～5ml/L walks.
Found through experiments: each factor is temperature to the influence pass of iron level in the electroformed nickel iron alloy in the solution〉current density〉pH.Fe
2+The increase of ionic concn is conducive to the raising of iron level in the alloy.In temperature was 35 ~ 50 ℃ of scopes, iron level reduced with the rising of temperature in the alloy.Totally in rising trend with iron level in the increase alloy of current density, and ascendant trend is obvious.With the rising of pH, iron level descends on the contrary in the alloy.So the parameters of the preferred electroforming solution of present embodiment is respectively:
pH 3.4～3.8
40～45 ℃ of temperature
Current density value 1～3A/dm
2
The thickness of concrete ferro-nickel alloy plating is controlled by electroforming time and current density in the control preparation process, and the surface quality of ferro-nickel alloy plating is controlled by ratio and the amount of control additive.
The homogeneity of control ferro-nickel alloy plating also is provided with the anode baffle parallel with negative plate between electroforming solution inner cathode and the anode, and anode baffle is provided with a plurality of perforates that the casting solution of can powering passes through.
The ferro-nickel alloy plating that the core of finishing for electroforming and surface thereof form, can reclaim washing, be conducive to the compositions such as electroforming solution of its surface attachment are removed and efficient recovery, wash again subsequently it is removed totally fully, in order to enter following operation.
After finishing electroforming, need carry out the demoulding to coating and handle, it is specially: demoulding time 5～8min, demoulding number of times 1～3 time, 50～60 ℃ of demoulding temperature, alkali equivalent 1～2mol/L.
Can also carry out following operation to the Rhometal after the demoulding, as washing, dispose coating surface because remaining impurity is handled in the demoulding, dry processing after cleaning finishes, namely can obtain the Rhometals that need more.
As can be seen from the above embodiments, a kind of Rhometal that the embodiment of the invention provides, the middle iron level of described Rhometal is 40～55%, and nickel content is 45～60%, and described Rhometal also comprises cobalt, and its content is≤3%.This material has control magnetic property height, plasticity, toughness height, material surface brighting, plate surface uniformity 5% with characteristic such as interior; The embodiment of the invention also provides a kind of electrocasting method for preparing this kind Rhometal simultaneously, and this electrocasting method can obtain the higher Rhometal mask plate of iron-holder, and production cost is low, and controllability is strong.The Rhometal that while present method provides is owing to be deposition layer, and it has unique high-density and low hole; Can also control the moiety of material by conditions such as parameter, solution composition are changed on the technology; Higher productivity and excellent economy are arranged, easily a large amount of preparation thin-film materials; The required equipment investment is relatively low.So the Rhometal electrocasting that present embodiment provides is the most preferred a kind of method of the thin Rhometal of preparation.
It below only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvement and replacement, these improvement and replacement also should be considered as protection scope of the present invention.
Claims (10)
1. a Rhometal is characterized in that, the middle iron level of described Rhometal is 40～55%, and described Rhometal also comprises cobalt, and its content is≤3%.
2. according to the Rhometal under the claim 1, it is characterized in that the surface brightness of described Rhometal is the one-level light, described plate surface uniformity≤5%.
3. a method for preparing the described Rhometal of claim 1 is characterized in that, described method comprises: select stainless steel core, washing, activation, electroforming, demoulding, peel off, the coating post-processing operation.
4. the method for preparing Rhometal according to claim 3 is characterized in that, described electroforming is specially, and as electroforming solution, metal anode is nickel block with sulfate system, is placed in the described electroforming solution, forms Rhometal in the negative plate galvanic deposit;
The composition range of described electroforming solution is:
Single nickel salt 180～200g/L
Nickelous chloride 30～50g/L
Boric acid 40～50g/L
Ferrous sulfate 25～40g/L
Heptahydrate 2.85 ~ 3.34g/L.
5. the method for preparing Rhometal according to claim 4 is characterized in that, the composition that also adds in the described electroforming solution has:
Stablizer 0.5～1ml/L
Wetting agent 0.5～1ml/L
Agent 1～5ml/L walks.
6. the method for preparing Rhometal according to claim 4 is characterized in that, described electroforming solution:
pH 3.4～3.8
40～45 ℃ of temperature
Current density value 1～3A/dm
2
7. the method for preparing Rhometal according to claim 4, it is characterized in that, also be provided with the anode baffle parallel with described negative plate between described electroforming solution inner cathode and the anode, described anode baffle is provided with a plurality of perforates that the casting solution of can powering passes through, and described anode baffle is used for the homogeneity of control ferro-nickel alloy plating.
8. the method for preparing Rhometal according to claim 3 is characterized in that, described washing operation specifically comprises oil removing, pickling, sandblast and ultrasonic embathing.
9. the method for preparing Rhometal according to claim 3 is characterized in that, described activation act is specially: soak time 1 ~ 8min, acid equivalent 1 ~ 2mol/L, 30～40 ℃ of temperature.
10. the method for preparing Rhometal according to claim 3 is characterized in that, described stripping operation is specially: demoulding time 5～8min, demoulding number of times 1～3 time, 50～60 ℃ of demoulding temperature, alkali equivalent 1～2mol/L.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210010790.2A CN103205604B (en) | 2012-01-16 | 2012-01-16 | A kind of preparation method of dilval |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210010790.2A CN103205604B (en) | 2012-01-16 | 2012-01-16 | A kind of preparation method of dilval |
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| CN103205604A true CN103205604A (en) | 2013-07-17 |
| CN103205604B CN103205604B (en) | 2016-08-10 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114775003A (en) * | 2022-06-17 | 2022-07-22 | 浮山县广和精密制造有限公司 | Electroforming liquid, electroforming method and application of electroforming liquid in laser printer fixing film |
| CN115505974A (en) * | 2022-09-28 | 2022-12-23 | 北京允升吉电子有限公司 | Manufacturing method of nickel-iron metal sheet for manufacturing precise printing template |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1794374A (en) * | 2005-12-06 | 2006-06-28 | 钢铁研究总院 | Nanometer crystal soft magnetic alloy film material and its preparation method |
| JP2006347165A (en) * | 2005-05-20 | 2006-12-28 | Process Lab Micron:Kk | Metal mask for making pattern |
| CN102268703A (en) * | 2011-08-11 | 2011-12-07 | 中南大学 | Method for preparing iron-nickel or iron-nickel-chromium alloy foil and electrolyte used in same |
| CN102312257A (en) * | 2010-06-30 | 2012-01-11 | 长春工业大学 | Method for preparing nanocrystalline nickel-ferro-cobalt ternary alloy through pulse electrodeposition |
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2012
- 2012-01-16 CN CN201210010790.2A patent/CN103205604B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006347165A (en) * | 2005-05-20 | 2006-12-28 | Process Lab Micron:Kk | Metal mask for making pattern |
| CN1794374A (en) * | 2005-12-06 | 2006-06-28 | 钢铁研究总院 | Nanometer crystal soft magnetic alloy film material and its preparation method |
| CN102312257A (en) * | 2010-06-30 | 2012-01-11 | 长春工业大学 | Method for preparing nanocrystalline nickel-ferro-cobalt ternary alloy through pulse electrodeposition |
| CN102268703A (en) * | 2011-08-11 | 2011-12-07 | 中南大学 | Method for preparing iron-nickel or iron-nickel-chromium alloy foil and electrolyte used in same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114775003A (en) * | 2022-06-17 | 2022-07-22 | 浮山县广和精密制造有限公司 | Electroforming liquid, electroforming method and application of electroforming liquid in laser printer fixing film |
| CN115505974A (en) * | 2022-09-28 | 2022-12-23 | 北京允升吉电子有限公司 | Manufacturing method of nickel-iron metal sheet for manufacturing precise printing template |
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