CN107142500A

CN107142500A - A kind of preparation method of electrolyte

Info

Publication number: CN107142500A
Application number: CN201710321459.5A
Authority: CN
Inventors: 刘程秀
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-05-09
Filing date: 2017-05-09
Publication date: 2017-09-08

Abstract

One kind is electrolysed the electrolyte of liquor manufacture method, predominantly electrothermal film of electromolding alloy, and its component is:Chromium chloride, aluminium chloride, nickel chloride, ammonium chloride, molybdenum chloride, frerrous chloride, sodium citrate etc.;Proportioning weigh after in the following order chromium chloride → aluminium chloride → nickel chloride → ammonium chloride → molybdenum chloride → frerrous chloride → sodium citrate → stir and wait to be completely dissolved → attach boric acid and tested as pH value regulator → PH instrument, after proportioning modulation stand-by electroforming electrolyte must be formed in the presence of the electrolyte through filtering, cooperation through galvanoplastics, the property for the Electric radiant Heating Film that negative electrode (i.e. component models) is restored is the metal film of pure alloying component, substantially increases electrothermal efficiency and avoids the high cost of original electric heating element, low performance, dangerous and the factor such as effect in short-term shortcoming.

Description

A kind of preparation method of electrolyte

Technical field

Electrochemical technology field involved in the present invention, is especially for use in a kind of electrothermal film of electromolding alloy and makes electrolysis Liquid.

Background technology

Galvanoplastics, is developed so far the time of decades, the use of single element metal material is limited to greatly On, the electroforming to complex element is not found also so far, its technology application：Mainly improve surface roughness and carry out decoration work Used with, the wear-resisting effect on surface, the duplication of model.And the field that galvanoplastics is applied to Electric radiant Heating Film there is no precedent.

The content of the invention

The present invention provides a kind of preparation method of electroforming electrolyte, exactly provides a kind of electrothermal film of electromolding alloy Electrolyte technique, in the presence of the electrolyte, the cooperation through galvanoplastics, the electric heating that negative electrode (i.e. component models) is restored The property of film is the metal film of pure alloying component, changes the defect of current metal electric heating pipe and spary coating type Electric radiant Heating Film, carries significantly High electrothermal efficiency and avoid the high cost of original electric heating element, low performance, dangerous and the factor such as effect in short-term shortcoming.

The present invention is mainly realized in：A kind of electrolyte of electrothermal film of electromolding alloy, it is characterised in that low-density work( The electrolyte component and content of rate (i.e. electric heating element of the unit area power density less than or equal to 5W) are (with percentage by weight Meter) chromium chloride 23-26%, aluminium chloride 22-25%, nickel chloride 3-6%, ammonium chloride 3-5.5%, frerrous chloride 0.4-0.8%, Boric acid 0.3-0.7%, sodium citrate 5-8%, molybdenum chloride 1-8%, pure water 32-34% electrolyte.Temperature in use scope 25- 40 DEG C, pH value 0.25-0.45；The specific gravity range of this electrolyte is 1.173-1.182 grams/cc；Current density is 9-13 Ampere/square decimeter.Anode material 1Cr18Ni9 or 1Cr18Ni9Ti or 0Cr25AlMO2 or Ni80Cr20 or platinum sheet.

A kind of electrolyte of electrothermal film of electromolding alloy, it is characterised in that high-density power (i.e. unit area power density Electric heating element more than or equal to 5W) electrolyte component and content be chromium chloride 27-30%, aluminium chloride (by weight percentage) 24-29%, nickel chloride 7-13%, ammonium chloride 5-6.5%, boric acid 0.3-0.7%, sodium citrate 5-8%, molybdenum chloride 4- 8.5%th, pure water surplus.25-45 DEG C of electrolyte temperature in use scope.PH value 0.2-0.5 current density 12-19 amperes/square point Rice；The specific gravity range of this electrolyte is 1.187-1.206 grams/cc；Anode using material C r20Ni80 or graphite or 0Cr25Al15MO2 or platinum sheet.

It is defined below for the quality requirements base region that each raw material is used：Ammonium chloride NH4Cl contents are no less than 99.5% Analysis it is pure；Analysis of the crystal aluminum chloride AlCl36H2O contents no less than 98% is pure；Nickel chloride NiCl26H2O contents are not Analysis less than 99.5% is pure；Analysis of the frerrous chloride FeCl24H2O contents no less than 99.5% is pure；Boric acid H3BO3 contents Analysis no less than 99.5% is pure；Analysis of the chromium chloride CrCl36H2O contents no less than 98% is pure；Molybdenum chloride MoCl3 contents Analysis no less than 98% is pure；Pure water pH value is in the range of 6.5-8.5, and non-pure water impurity is less than or equal to 0.25%.

Embodiment

A kind of preparation method of electroforming electrolyte is specifically prepared and application method：

1st, determine which kind of electrolyte selected first according to the use occasion of electric heating element is different；

2nd, determine to carry out preparing A independent beaker or the clean appearance of non-metal anti-corrosion by following procedure after the species of electrolyte Vessel are separately sampled with the help of electronic balance to weigh；The order that B pours into the aqueous solution is chromium chloride → aluminium chloride → nickel chloride → ammonium chloride → molybdenum chloride → frerrous chloride → sodium citrate →, which is stirred, waits to be completely dissolved → attach boric acid as pH value regulator → PH instrument is tested；

3rd, deployed electrolyte is before the use：One is that should first pass through the tiffany net filtration of 200 mesh, and the requirement of silk screen material is resistance to The nonmetallic materials of corrosion, its effect is to filter out the solid particle in electrolyte, so as not to it is anti-in cathode reduction process There is the generation of coarse crystal grains in seasonable deposition；Two be that the side of machinery or air stirring should be used during using this electrolyte Method is coordinated, and reason is that the gravity is larger, is also easy to produce and is precipitated and impact effect.It is noted that only when the two methods are used Can make solution produce above and below stir, and be definitely not allow for the existing generation acutely stirred, deposition otherwise will occurs Inhomogeneities and the slow phenomenon of deposition velocity.

The quality requirements base region that each raw material is used for the examples below is defined below：Ammonium chloride NH4Cl contents are not Analysis less than 99.5% is pure；Analysis of the crystal aluminum chloride AlCl36H2O contents no less than 98% is pure；Nickel chloride NiCl2 Analysis of the 6H2O contents no less than 99.5% is pure；Analysis of the frerrous chloride FeCl24H2O contents no less than 99.5% is pure；Boric acid Analysis of the H3BO3 contents no less than 99.5% is pure；Analysis of the chromium chloride CrCl36H2O contents no less than 98% is pure；Molybdenum chloride Analysis of the MoCl3 contents no less than 98% is pure；Pure water pH value is in the range of 6.5-8.5, and non-pure water impurity is less than or equal to 0.25%.

A kind of embodiment 1, the electrolyte of electrothermal film of electromolding alloy makes, it is characterised in that low-density power 5W electrolysis Liquid：Electrolyte total amount is calculated with 500g, and component is with content for (by weight percentage)：A is weighed respectively with independent beaker respectively, chlorine Change chromium 25%125g, the g of aluminium chloride 24%120, the g of nickel chloride 5%25, ammonium chloride 4.5%22.5g, frerrous chloride 0.7% 3.5g, the g of boric acid 0.6%3, the g%35 of sodium citrate 7, molybdenum chloride 7%35g, pure water 26.2%131g electrolyte；B is poured into The order of the aqueous solution is that chromium chloride → aluminium chloride → nickel chloride → ammonium chloride → molybdenum chloride → frerrous chloride → sodium citrate → is stirred Mix and wait that be completely dissolved → attach boric acid tests as pH value regulator → PH instrument；The solution of modulation is matched, by the tiffany of 200 mesh Net filtration, filters out the solid particle in electrolyte, is prepared into stand-by electrolyte；Through 25-40 DEG C of temperature in use scope, pH value 0.40；The specific gravity range of this electrolyte is 1.172 grams/cc；Current density is 12 amperes/square decimeter；Anode material 1Cr18Ni9 or 1Cr18Ni9Ti or 0Cr25AlMO2 or Ni80Cr20 or platinum sheet.

Embodiment 2, a kind of electrolyte of electrothermal film of electromolding alloy, it is characterised in that high-density power 6W electrolyte electricity Solution liquid total amount is calculated with 500g, and component is with content for (by weight percentage)：A is weighed respectively with independent beaker respectively, chromium chloride 27%135g, the g of aluminium chloride 25%125, the g of nickel chloride 7%35, ammonium chloride 5%25g, the g of boric acid 0.6%3, sodium citrate 7 %35g, molybdenum chloride 7%35g, pure water 26.2%107g electrolyte；B pour into the order of the aqueous solution for chromium chloride → aluminium chloride → Nickel chloride → ammonium chloride → molybdenum chloride → sodium citrate →, which is stirred, waits to be completely dissolved → attach boric acid as pH value regulator → PH Instrument is tested；The solution modulated is matched, by the tiffany net filtration of 200 mesh, the solid particle in electrolyte is filtered out, is prepared into Stand-by electrolyte；25-45 DEG C of electrolyte temperature in use scope.PH value 12-19 amperes/square decimeter of 0.2-0.5 current densities；This The specific gravity range of electrolyte is 1.187-1.206 grams/cc；Anode using material C r20Ni80 or graphite or 0Cr25Al15MO2 or platinum sheet.

The electrolyte should avoid the influence of environment dust using process and preservation process and in defined temperature range Operated.

Claims

1. one kind electrolysis liquor manufacture method, determine after the species of electrolyte by following procedure prepare A with independent beaker or The clean container ware of non-metal anti-corrosion is separately sampled with the help of electronic balance to weigh；The order that B pours into the aqueous solution is chlorine Change chromium → aluminium chloride → nickel chloride → ammonium chloride → molybdenum chloride → frerrous chloride → sodium citrate → to stir and wait to be completely dissolved → add Add boric acid to test as pH value regulator → PH instrument；Proportioning, which modulates solution, will be filtered before use.

2. a kind of electrolyte, mainly heating alloy film is characterized in that low-density power (i.e. unit area power with electrolyte Density is less than or equal to 5W electric heating element) electrolyte component and content be chromium chloride 23-26%, chlorine (by weight percentage) Change aluminium 22-25%, nickel chloride 3-6%, ammonium chloride 3-5.5%, frerrous chloride 0.4-0.8%, boric acid 0.3-0.7%, lemon Sour sodium 5-8%, molybdenum chloride 1-8%, pure water 32-34% electrolyte；25-40 DEG C of temperature in use scope, pH value 0.25-0.45； The specific gravity range of this electrolyte is 1.173-1.182 grams/cc；Current density is 9-13 amperes/square decimeter；Anode material Expect 1Cr18Ni9 or 1Cr18Ni9Ti or 0Cr25AlMO2 or Ni80Cr20 or platinum sheet.

3. a kind of electrolyte, mainly heating alloy film is characterized in that high-density power (i.e. unit area power with electrolyte Density is more than or equal to 5W electric heating element) electrolyte component and content be chromium chloride 27-30%, chlorine (by weight percentage) Change aluminium 24-29%, nickel chloride 7-13%, ammonium chloride 5-6.5%, boric acid 0.3-0.7%, sodium citrate 5-8%, molybdenum chloride 4- 8.5%th, pure water surplus；25-45 DEG C of electrolyte temperature in use scope；PH value 0.2-0.5 current density 12-19 amperes/square point Rice, the specific gravity range of this electrolyte is 1.187-1.206 grams/cc；Anode using material C r20Ni80 or graphite or 0Cr25Al15MO2 or platinum sheet.