CN107059075A - The plating solution and coating and polycrystalline silicon ingot or purifying furnace of amorphous nickel tungsten-molybdenum alloy - Google Patents

The plating solution and coating and polycrystalline silicon ingot or purifying furnace of amorphous nickel tungsten-molybdenum alloy Download PDF

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Publication number
CN107059075A
CN107059075A CN201710055258.5A CN201710055258A CN107059075A CN 107059075 A CN107059075 A CN 107059075A CN 201710055258 A CN201710055258 A CN 201710055258A CN 107059075 A CN107059075 A CN 107059075A
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molybdenum alloy
nickel tungsten
amorphous nickel
plating solution
coating
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CN107059075B (en
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黄修康
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JIANGSU XIEXIN SOFT CONTROL EQUIPMENT TECHNOLOGY DEVELOPMENT CO LTD
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JIANGSU XIEXIN SOFT CONTROL EQUIPMENT TECHNOLOGY DEVELOPMENT CO LTD
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    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00Electroplating: Baths therefor
    • C25D3/02Electroplating: Baths therefor from solutions
    • C25D3/56Electroplating: Baths therefor from solutions of alloys
    • C25D3/562Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of iron or nickel or cobalt
    • CCHEMISTRY; METALLURGY
    • C30CRYSTAL GROWTH
    • C30BSINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B28/00Production of homogeneous polycrystalline material with defined structure
    • C30B28/04Production of homogeneous polycrystalline material with defined structure from liquids
    • C30B28/06Production of homogeneous polycrystalline material with defined structure from liquids by normal freezing or freezing under temperature gradient
    • CCHEMISTRY; METALLURGY
    • C30CRYSTAL GROWTH
    • C30BSINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B29/00Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
    • C30B29/02Elements
    • C30B29/06Silicon

Abstract

The present invention relates to a kind of plating solution of amorphous nickel tungsten-molybdenum alloy, it includes following component:175~240g/L nickel salt, 60~80g/L tungstates, 10~30g/L molybdates, 6~14g/L ammonium chloride, 15~30g/L boric acid, 20~35g/L phosphorous acid, 3~8g/L sulfamic acid, 0.5~1.5g/L N acrylic brominations quinoline, 1~2g/L para toluene sulfonamide.The plating solution of above-mentioned amorphous nickel tungsten-molybdenum alloy, can form amorphous nickel tungsten-molybdenum alloy layer on the inwall of the body of heater of ingot furnace, and crystallization occurs after heated, stable state is formed, heat resistance is very high for amorphous nickel tungsten-molybdenum alloy layer.When on the nickel tungsten-molybdenum alloy layer on the inwall of heat transmission to body of heater, this layer has stronger reflecting properties, it is therefore prevented that thermal energy radiation loses, and reduces thermal losses during ingot casting, and then the power of ingot furnace is reduced, so as to reduce the production cost and energy consumption of ingot casting.The invention also discloses a kind of amorphous nickel tungsten-molybdenum alloy coating and the polycrystalline silicon ingot or purifying furnace containing the coating.

Description

The plating solution and coating and polycrystalline silicon ingot or purifying furnace of amorphous nickel tungsten-molybdenum alloy
Technical field
The present invention relates to the plating solution and coating and polycrystalline of field of photovoltaic technology, more particularly to a kind of amorphous nickel tungsten-molybdenum alloy Silicon ingot furnace.
Background technology
Polycrystalline ingot furnace is widely used as the main tool of silicon material ingot casting.Silicon material is after prolonged melt Crystallize into polysilicon.Silicon material, which is melted, needs 1420 degree of high temperature, and keeps for a long time.Ingot furnace heating needs substantial amounts of heat Can, belong to the industry of high energy consumption.At present, the heating of ingot furnace is all to change into heat energy in electrically heated form, thus power consumption is Through one of prime cost as ingot casting.
Traditionally, the direction of reduction energy consumption is the structure and shape by changing body of heater, but design difficulty is big, implement It is difficult.
Therefore, a kind of method that can effectively reduce energy consumption and have substantially no effect on furnace binding is needed badly.
The content of the invention
Based on this, it is necessary to for traditional ingot furnace high energy consumption, influence furnace binding the problem of can be dropped there is provided one kind Low ingot furnace energy consumption, and do not change the plating solution of the amorphous nickel tungsten-molybdenum alloy of furnace binding substantially.
A kind of plating solution of amorphous nickel tungsten-molybdenum alloy, including the following component being dispersed in water:
The plating solution of above-mentioned amorphous nickel tungsten-molybdenum alloy, can form amorphous nickel tungsten on the inwall of the body of heater of ingot furnace Crystallization occurs after heated for alloy-layer, amorphous nickel tungsten-molybdenum alloy layer, forms stable state, heat resistance is very high.Passed in heat When on the nickel tungsten-molybdenum alloy layer on the defeated inwall to body of heater, this layer has stronger reflecting properties, it is therefore prevented that thermal energy radiation is damaged Lose, reduce thermal losses during ingot casting, and then reduce the power of ingot furnace, so as to reduce the production cost and energy of ingot casting Consumption.
In one of the embodiments, in addition to cobalt salt;The concentration of the cobalt salt is 20~40g/L.
In one of the embodiments, the cobalt salt is cobaltous sulfate.
In one of the embodiments, the nickel salt by 160~200g/L nickel sulfate, 10~30g/L nickel chloride, with And 5~10g/L nickelous carbonate composition.
In one of the embodiments, the tungstates is sodium tungstate.
In one of the embodiments, the molybdate is ammonium heptamolybdate.
In one of the embodiments, including the following component that is dispersed in water:
Present invention also offers a kind of coating of amorphous nickel tungsten-molybdenum alloy.
A kind of coating of amorphous nickel tungsten-molybdenum alloy, the coating of the amorphous nickel tungsten-molybdenum alloy is by provided by the present invention The plating solution of amorphous nickel tungsten-molybdenum alloy is electroplated to be formed.
The coating of above-mentioned amorphous nickel tungsten-molybdenum alloy, occurs crystallization after heated, forms stable state, and heat resistance is very high. When on the nickel tungsten-molybdenum alloy layer on the inwall of heat transmission to body of heater, this layer has stronger reflecting properties, it is therefore prevented that heat Energy radiation loss, reduces thermal losses during ingot casting, and then reduces the power of ingot furnace, so as to reduce being produced into for ingot casting Sheet and energy consumption.
Present invention also offers a kind of polycrystalline silicon ingot or purifying furnace.
A kind of polycrystalline silicon ingot or purifying furnace, including:
Body of heater;
And coating, on the inwall for being attached to the body of heater;The coating closes for amorphous nickel tungsten provided by the present invention The coating of gold.
Above-mentioned polycrystalline silicon ingot or purifying furnace, due to being formed with the coating of amorphous nickel tungsten-molybdenum alloy on the inwall of body of heater, the layer Crystallization occurs after heated, stable state is formed, heat resistance is very high.Nickel tungsten-molybdenum alloy on the inwall of heat transmission to body of heater When on layer, this layer has stronger reflecting properties, it is therefore prevented that thermal energy radiation loses, and reduces thermal losses during ingot casting, enters And the power of ingot furnace is reduced, so as to reduce the production cost and energy consumption of ingot casting.
In one of the embodiments, the thickness of the coating is 5~20 microns.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to Limit the present invention.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " include one or more phases The arbitrary and all combination of the Listed Items of pass.
A kind of plating solution of amorphous nickel tungsten-molybdenum alloy, for forming amorphous nickel tungsten-molybdenum alloy coating, is particularly suitable for use in Amorphous nickel tungsten-molybdenum alloy coating is formed on the furnace interior of polycrystalline silicon ingot or purifying furnace.
Specifically, the plating solution of the amorphous nickel tungsten-molybdenum alloy includes the following component being dispersed in water:
Wherein, water is the decentralized medium of each component in plating solution, and reaction medium during plating.Preferably, it is of the invention The preferred deionized water of water, can so avoid influence of other foreign ions to plating solution, further improve the performance of plating solution.
Wherein, nickel salt is nickel source, that is to say, that the nickel in coating alloy derives from nickel salt.In plating, in nickel salt nickel from Son is reduced into nickle atom.Preferably, nickel salt can be that nickel sulfate, nickel chloride or nickelous carbonate etc. are in dissolved state in the plating solution Nickel salt.
Preferably, nickel salt by 160~200g/L nickel sulfate, 10~30g/L nickel chloride and 5~10g/L carbonic acid Nickel is constituted.Nickel chloride so in nickel salt can also provide chlorion, play a part of increasing electric conductivity;Nickelous carbonate may be used also simultaneously To play a part of adjusting pH value, so as to further optimize the performance of plating solution, and foreign ion will not be introduced.
Wherein, tungstates is tungsten source, that is to say, that the tungsten in coating alloy derives from tungstates.In plating, tungstates In tungstate radicle be reduced to tungsten atom.
Preferably, tungstates is sodium tungstate.Material cost so can be effectively reduced, and then reduces electroplating cost.Certainly, It is understood that tungstates is not limited to sodium tungstate, other tungstates are can also be, such as potassium tungstate.
Wherein, molybdate is molybdenum source, that is to say, that the molybdenum in coating alloy derives from nickel salt.In plating, in molybdate Molybdate is reduced into molybdenum atom.
Preferably, molybdate is ammonium heptamolybdate.It is, of course, understood that molybdate is not limited to ammonium heptamolybdate, also Can be other molybdates, such as sodium molybdate, potassium molybdate.
In order to further improve the performance of alloy, plating solution of the invention preferably also includes cobalt salt;Cobalt salt is cobalt source, Ke Yi Cobalt atom is added in coating alloy.It so can further improve the intensity of alloy.The concentration of the cobalt salt is 20~40g/L.
Preferably, cobalt salt is cobaltous sulfate.Compared to other cobalt salts, using cobaltous sulfate, coating deposition rate is faster.Certainly, It is understood that cobalt salt is not limited to cobaltous sulfate, other cobalt salts are can also be, such as cobalt chloride, cobalt carbonate.
Wherein, ammonium chloride, boric acid, phosphorous acid, sulfamic acid, N- acrylic brominations quinoline, para toluene sulfonamide are plating solution In various additives, for improve formed amorphous nickel tungsten-molybdenum alloy coating performance and quality.
Preferably, the plating solution of amorphous nickel tungsten-molybdenum alloy, including the following component being dispersed in water:
It is highly preferred that the plating solution of amorphous nickel tungsten-molybdenum alloy includes the following component being dispersed in water:
The plating solution of above-mentioned amorphous nickel tungsten-molybdenum alloy, can form amorphous nickel tungsten on the inwall of the body of heater of ingot furnace Crystallization occurs after heated for alloy-layer, amorphous nickel tungsten-molybdenum alloy layer, forms stable state, heat resistance is very high.Passed in heat When on the nickel tungsten-molybdenum alloy layer on the defeated inwall to body of heater, this layer has stronger reflecting properties, it is therefore prevented that thermal energy radiation is damaged Lose, reduce thermal losses during ingot casting, and then reduce the power of ingot furnace, so as to reduce the production cost and energy of ingot casting Consumption.
Present invention also offers a kind of coating of amorphous nickel tungsten-molybdenum alloy.
A kind of coating of amorphous nickel tungsten-molybdenum alloy, the coating of the amorphous nickel tungsten-molybdenum alloy is by provided by the present invention The plating solution of amorphous nickel tungsten-molybdenum alloy is electroplated to be formed.
The coating of above-mentioned amorphous nickel tungsten-molybdenum alloy, occurs crystallization after heated, forms stable state, and heat resistance is very high. When on the nickel tungsten-molybdenum alloy layer on the inwall of heat transmission to body of heater, this layer has stronger reflecting properties, it is therefore prevented that heat Energy radiation loss, reduces thermal losses during ingot casting, and then reduces the power of ingot furnace, so as to reduce being produced into for ingot casting Sheet and energy consumption.
Present invention also offers a kind of polycrystalline silicon ingot or purifying furnace.
A kind of polycrystalline silicon ingot or purifying furnace, including:
Body of heater;
And coating, on the inwall for being attached to the body of heater;The coating closes for amorphous nickel tungsten provided by the present invention The coating of gold.
Preferably, the thickness of coating is 5~20 microns.It so can further improve the performance of polycrystalline silicon ingot or purifying furnace.
Above-mentioned polycrystalline silicon ingot or purifying furnace, due to being formed with the coating of amorphous nickel tungsten-molybdenum alloy on the inwall of body of heater, the layer Crystallization occurs after heated, stable state is formed, heat resistance is very high.Nickel tungsten-molybdenum alloy on the inwall of heat transmission to body of heater When on layer, this layer has stronger reflecting properties, it is therefore prevented that thermal energy radiation loses, and reduces thermal losses during ingot casting, enters And the power of ingot furnace is reduced, so as to reduce the production cost and energy consumption of ingot casting.
Below in conjunction with specific embodiment, the invention will be further elaborated.
Embodiment 1
Following component and content are mixed and are dissolved in a certain amount of water, the plating solution of amorphous nickel tungsten-molybdenum alloy is obtained, is denoted as A1。
Component and content are as follows:
Embodiment 2
Following component and content are mixed and are dissolved in a certain amount of water, the plating solution of amorphous nickel tungsten-molybdenum alloy is obtained, is denoted as A2。
Component and content are as follows:
Embodiment 3
Following component and content are mixed and are dissolved in a certain amount of water, the plating solution of amorphous nickel tungsten-molybdenum alloy is obtained, is denoted as A3。
Component and content are as follows:
Embodiment 4
Following component and content are mixed and are dissolved in a certain amount of water, the plating solution of amorphous nickel tungsten-molybdenum alloy is obtained, is denoted as A4。
Component and content are as follows:
Embodiment 5
Following component and content are mixed and are dissolved in a certain amount of water, the plating solution of amorphous nickel tungsten-molybdenum alloy is obtained, is denoted as A5。
Component and content are as follows:
Performance test:
The common polycrystalline silicon ingot furnace for taking 6 specifications the same is standby.
Using same technique, 5 polycrystalline silicon ingot or purifying furnaces wherein are distinguished with the plating solution A1-A5 of amorphous nickel tungsten-molybdenum alloy Body of heater inwall on electroplating amorphous nickel tungsten-molybdenum alloy coating;In addition it is remaining that do not process.
Using same process, polycrystalline silicon ingot casting is carried out in above-mentioned 6 polycrystalline silicon ingot or purifying furnaces respectively, heating power is recorded. Test result is shown in Table 1.
Table 1
As it can be seen from table 1 relative to the polycrystalline silicon ingot or purifying furnace without coating, using the amorphous nickel tungsten of embodiment 1~5 Molybdenum alloy plating solution, the amorphous nickel tungsten-molybdenum alloy coating formed on the inboard wall of furnace body of polycrystalline silicon ingot or purifying furnace, can effectively be reduced The power of polycrystalline silicon ingot or purifying furnace.This explanation, amorphous nickel tungsten-molybdenum alloy plating solution provided by the present invention can effectively reduce polycrystalline The energy consumption of silicon ingot furnace, so as to save electric energy and reduction ingot casting cost.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.

Claims (10)

1. a kind of plating solution of amorphous nickel tungsten-molybdenum alloy, it is characterised in that including the following component being dispersed in water:
2. the plating solution of amorphous nickel tungsten-molybdenum alloy according to claim 1, it is characterised in that also including cobalt salt;The cobalt The concentration of salt is 20~40g/L.
3. the plating solution of amorphous nickel tungsten-molybdenum alloy according to claim 2, it is characterised in that the cobalt salt is cobaltous sulfate.
4. the plating solution of amorphous nickel tungsten-molybdenum alloy according to claim 1, it is characterised in that the nickel salt by 160~ The nickelous carbonate composition of 200g/L nickel sulfate, 10~30g/L nickel chloride and 5~10g/L.
5. the plating solution of amorphous nickel tungsten-molybdenum alloy according to claim 1, it is characterised in that the tungstates is wolframic acid Sodium.
6. the plating solution of amorphous nickel tungsten-molybdenum alloy according to claim 1, it is characterised in that the molybdate is seven molybdic acids Ammonium.
7. the plating solution of amorphous nickel tungsten-molybdenum alloy according to claim 1, it is characterised in that including be dispersed in water as Lower component:
8. a kind of coating of amorphous nickel tungsten-molybdenum alloy, it is characterised in that the coating of the amorphous nickel tungsten-molybdenum alloy is by right It is required that the plating solution of the amorphous nickel tungsten-molybdenum alloy described in 1~7 is electroplated to be formed.
9. a kind of polycrystalline silicon ingot or purifying furnace, it is characterised in that including:
Body of heater;
And coating, on the inwall for being attached to the body of heater;The coating is the amorphous nickel tungsten-molybdenum alloy described in claim 8 Coating.
10. polycrystalline silicon ingot or purifying furnace according to claim 9, it is characterised in that the thickness of the coating is 5~20 microns.
CN201710055258.5A 2017-01-24 2017-01-24 The plating solution and coating and polycrystalline silicon ingot or purifying furnace of amorphous nickel tungsten-molybdenum alloy Active CN107059075B (en)

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CN109058084A (en) * 2018-07-19 2018-12-21 胜利油田金岛实业有限责任公司 A kind of anti-pollution draining oil well pump of nickel tungsten electroplating phosphorus alloy
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