CN112267116A - Light aramid fiber wave-proof sleeve - Google Patents
Light aramid fiber wave-proof sleeve Download PDFInfo
- Publication number
- CN112267116A CN112267116A CN202011174326.8A CN202011174326A CN112267116A CN 112267116 A CN112267116 A CN 112267116A CN 202011174326 A CN202011174326 A CN 202011174326A CN 112267116 A CN112267116 A CN 112267116A
- Authority
- CN
- China
- Prior art keywords
- aramid fiber
- liquid medicine
- copper
- mother tank
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
- C23C28/023—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material only coatings of metal elements only
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/18—Pretreatment of the material to be coated
- C23C18/20—Pretreatment of the material to be coated of organic surfaces, e.g. resins
- C23C18/22—Roughening, e.g. by etching
- C23C18/24—Roughening, e.g. by etching using acid aqueous solutions
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/18—Pretreatment of the material to be coated
- C23C18/20—Pretreatment of the material to be coated of organic surfaces, e.g. resins
- C23C18/28—Sensitising or activating
- C23C18/30—Activating or accelerating or sensitising with palladium or other noble metal
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/31—Coating with metals
- C23C18/38—Coating with copper
- C23C18/40—Coating with copper using reducing agents
- C23C18/405—Formaldehyde
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/10—Electroplating with more than one layer of the same or of different metals
- C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
- H05K9/0088—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising a plurality of shielding layers; combining different shielding material structure
Abstract
The utility model provides a light aramid fiber prevents ripples cover which characterized in that, it is woven by electrically conductive aramid fiber silk and forms, electrically conductive aramid fiber silk by interior and outer aramid fiber silk base member, copper nickel metal coating and silver metal coating of including in proper order, copper nickel metal coating adhere to aramid fiber silk base member surface, silver metal coating adhere to copper nickel metal coating surface. The light aramid fiber wave-proof sleeve has the advantages of aramid fiber and metal, has the advantages of light weight, good shielding effect, good toughness, strong acid and alkali resistance, strong conductivity and the like, has high weaving density, shielding effect of 45 dB-70 dB, weight reduction of 50% -70%, easy bending and high fatigue strength, is easier to install in various narrow spaces, is not easy to generate wave leakage and fracture phenomena during repeated bending, and is very suitable for the field of aviation.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to a wave-proof sleeve, in particular to a light aramid fiber wave-proof sleeve.
[ background of the invention ]
The metal wave-proof sleeve is applied to the communication harness shielding, and the fatigue strength of the metal wave-proof sleeve is low due to the characteristics of metal materials. The leakage wave is easy to generate under the severe shaking caused by the navigation of the airplane, so that the signal interference is caused, and certain influence is caused on the safety performance of the airplane. Moreover, because the traditional metal wave-proof sleeve is heavy in weight, for aircrafts and spacecrafts with urgent weight reduction requirements, the adoption of the light-weight wave-proof sleeve is a problem to be considered in designing the aircrafts and the spacecrafts.
The traditional wave-proof sleeve usually adopts a copper wire as a base metal, and copper is a conductive metal with less stable chemical property, so that corrosion is easy to occur, the service life of a wire harness of an airplane is greatly influenced, and great troubles are caused for daily use. In addition, the wave-proof sleeve made of copper wires is heavy in weight and poor in fatigue strength, and is easy to generate leaky waves and even break under the condition of being bent for many times.
[ summary of the invention ]
The invention aims to solve the problems and provides a light aramid fiber wave-proof sleeve.
In order to solve the problems, the invention provides a light aramid fiber wave-proof sleeve which is characterized by being formed by weaving conductive aramid fibers, wherein the conductive aramid fibers sequentially comprise an aramid fiber yarn substrate, a copper-nickel metal coating and a silver metal coating from inside to outside, the copper-nickel metal coating is attached to the surface of the aramid fiber yarn substrate, and the silver metal coating is attached to the surface of the copper-nickel metal coating.
Further, the conductive aramid fiber yarn is processed and prepared through the following steps of:
micropore: etching the surface of the aramid fiber silk matrix to form a microscopic rough surface on the surface of the aramid fiber silk matrix so as to increase the bonding force between the aramid fiber silk matrix and the metal coating;
and (3) activation: carrying out surface treatment on the aramid fiber silk matrix subjected to surface etching so as to adsorb a layer of easily oxidized substances on the surface of the aramid fiber silk matrix;
palladium leaching: forming a layer of colloidal palladium particles on the surface of the activated aramid fiber filament substrate by using a palladium liquid;
copper melting: forming a copper plating layer by a chemical method;
electro-copper: forming a copper plating layer by an electroplating method;
nickel electroplating: forming a nickel plating layer by an electroplating method;
silver electroplating: forming a silver plating layer by an electroplating method;
passivation: passivation treatment is performed using a sealant to form a protective film.
Further, the microwell step comprises:
adding a mixed solution of sulfuric acid and hydrochloric acid with 70% volume into the micropore mother tank;
dissolving a strong oxidant in the mixed solution of the micropore mother tank according to the proportion of 100 g/L;
filling the mixed solution of sulfuric acid and hydrochloric acid into the micropore mother tank;
the material pressing device is manually adjusted, the flow switch is manually adjusted, and the aramid fiber yarn substrate is immersed in the liquid medicine.
Further, the activating step comprises:
adding 80% of tap water by volume into an activation mother tank;
adding 10% by volume of cleaning agent;
filling the mother tank with water;
the material pressing device is manually adjusted, the flow switch is manually adjusted, and the aramid fiber yarns after the micropores are immersed in the liquid medicine.
Further, the palladium immersion step comprises:
adding pure water with the volume of 70% in a palladium mother liquor tank;
adding 5% colloidal palladium into a palladium mother liquor tank, and then adding 150ML/L analytical pure-grade hydrochloric acid;
adding pure water into the full mother tank;
manually adjusting a pressing device and a flow switch to immerse the activated aramid fiber filaments in the liquid medicine of the palladium mother liquid tank;
adding the prepared liquid medicine 100ML at certain intervals.
Further, the step of copper-plating comprises:
adding pure water with the volume of 80% into the copper dissolving mother tank;
13.5ml/L of copper sulfate, 100ml/L of formaldehyde, 13ml/L of sodium hydroxide and 0.3ml/L of catalyst are sequentially added into a copper dissolving mother tank;
adding water into the full mother tank;
manually adjusting a material pressing device and manually adjusting a flow switch to immerse the aramid fiber filaments after the target immersion into the liquid medicine in the plating tank;
analyzing the content of the liquid medicine in 12 hours, and adding the liquid medicine to a standard value according to consumption.
Further, the electrocoppering step comprises:
adding 70% pure water by volume into the electrolytic copper mother tank, and heating to 50-60 ℃;
2g/L of potassium hydroxide is added, 125g/L of potassium cyanide is added, 55g/L of cuprous cyanide is dissolved in pure water and then stirred and added into the electrolytic copper mother tank;
adding pure water into the full mother tank;
turning on a rectifier and adjusting current parameters;
manually adjusting a pressing device and a flow switch to immerse the copper-dissolved aramid fiber filaments in the liquid medicine;
and analyzing the content of the liquid medicine after 24 hours, adding the liquid medicine to a standard value according to consumption, and adjusting the content of potassium cyanide according to analysis when the anode is blackened.
Further, the step of electronickelling includes:
adding 35% pure water by volume into an electric nickel mother tank, and heating to 60 ℃;
adding 500ml/L nickel sulfamate and 15g/L nickel chloride, then adding 40g/L boric acid, and fully and uniformly stirring;
adding water into the full mother tank;
turning on a rectifier and adjusting current parameters;
manually adjusting a material pressing device and manually adjusting a flow switch to immerse the electro-coppered aramid fiber filaments in the liquid medicine;
analyzing the content of the liquid medicine in 24 hours, adding the liquid medicine to a standard value according to consumption, and detecting the pH value of the nickel liquid medicine every 8 hours, wherein the range is 3.8-4.4.
Further, the silver electroplating step comprises:
adding 50% pure water by volume in a silver electroplating mother tank and heating to 30-40 ℃;
adding 120g/L potassium cyanide into the silver electroplating mother tank, then adding 30g/L silver cyanide, and finally adding 30ml/L silver brightening agent and fully and uniformly stirring;
adding water into the full mother tank; turning on a rectifier and adjusting current parameters;
manually adjusting a material pressing device and manually adjusting a flow switch to immerse the nickel-electroplated aramid fiber filaments in the liquid medicine;
analyzing the content of the chemical solution in 24 hours, adding 1.5Kg of silver anode every 24 hours according to the content of the chemical solution added to a standard value after consumption.
Further, the passivating step includes:
adding 80% pure water by volume into a passivation mother tank, and heating to 30-40 ℃;
adding 0.5g/L of organic hole sealing agent;
adding water into the full mother tank;
manually adjusting a material pressing device and manually adjusting a flow switch to immerse the electro-silvered aramid fiber in the liquid medicine;
the liquid medicine is replaced after 36 hours, and new liquid medicine is prepared again.
The present invention advantageously contributes to effectively solving the above-mentioned problems. The light aramid fiber wave-proof sleeve is formed by weaving conductive aramid fiber wires, and the conductive aramid fiber wires are made by electroplating metal on the aramid fiber wires. Compared with the traditional wave-proof sleeve, the light aramid fiber wave-proof sleeve has the following performance advantages:
1. the aramid fiber yarn is light and easy to bend, so that the aramid fiber yarn is favorable for weaving, and the weaving density of the anti-wave sleeve woven by the conductive aramid fiber yarn can be close to 100 percent and is far higher than 90 percent of that of the traditional metal anti-wave sleeve;
2. the light aramid fiber wave-proof sleeve has high weaving density, so the shielding effect is better, the shielding efficiency can reach 45 dB-70 dB, and the shielding efficiency greatly exceeds 30dB of the traditional wave-proof sleeve;
3. because the light aramid fiber yarn is used as a matrix material, compared with the traditional wave-proof sleeve, the weight of the wave-proof sleeve can be reduced by 50-70%;
4. the aramid fiber yarn is easy to bend, so that the anti-wave sleeve woven by the conductive aramid fiber yarn is high in fatigue strength, easy to install in various narrow spaces, and not easy to generate wave leakage and fracture phenomena during repeated bending.
5. The wave-proof sleeve woven by the conductive aramid fiber yarns has the advantages that the outermost surfaces of the aramid fiber yarns are plated with silver layers, and the conductive performance and the corrosion resistance of the wave-proof sleeve are higher than those of the conventional copper base material.
[ detailed description ] embodiments
The following examples are further illustrative and supplementary to the present invention and do not limit the present invention in any way.
The light aramid fiber wave-proof sleeve is formed by weaving conductive aramid fibers. The conductive aramid fiber wire sequentially comprises an aramid fiber wire substrate, a copper-nickel metal coating and a silver metal coating from inside to outside, wherein the copper-nickel metal coating is attached to the surface of the aramid fiber wire substrate, and the silver metal coating is attached to the surface of the copper-nickel metal coating. The light aramid fiber wave-proof sleeve is formed by weaving non-metallic aramid fiber wires after metal plating, and the process steps are as follows: micropore-activation-palladium immersion-copper activation-electrolytic copper-electrolytic nickel-electrolytic silver-passivation-weighing-plating layer test-ingot separation-weaving-test-total inspection-warehousing.
The aramid fiber yarn without metal plating, namely the aramid fiber yarn substrate described in the embodiment. The conductive aramid fiber yarn is a material directly used for weaving to form the light aramid fiber wave-proof sleeve, and is a material with a metal coating formed by aramid fiber yarn through a series of processes.
In the embodiment, the aramid filaments are made of aramid 1414 precursor filaments which are liquid crystal polymer materials, and the polymer has a linear structure, so that the aramid filaments have the advantages of high strength and high modulus fibers, and also have the advantages of low density, good toughness, excellent heat resistance, good acid and alkali resistance, chemical solvent resistance and the like.
Firstly, micro-pore:
the surface of the aramid fiber yarn is etched to form a microscopic rough surface, so that the binding force between the aramid fiber yarn and a subsequent metal coating can be increased; the method specifically comprises the following steps:
1. adding a mixed solution of sulfuric acid and hydrochloric acid with 70% volume into a micropore mother tank, wherein the mixing ratio of the sulfuric acid and the hydrochloric acid is not limited;
2. dissolving a strong oxidant in the mixed solution of the micropore mother tank according to the proportion of 100g/L (calculated by the volume of the mother tank); in this embodiment, the strong oxidant may be KMnO4And H2SO4Mixed according to the volume of 1: 1;
3. continuously adding the mixed solution of sulfuric acid and hydrochloric acid in the step 1 to fill the micropore mother tank;
4. manually adjusting the pressing device and manually adjusting a flow switch to immerse the aramid fiber filaments in the liquid medicine in the micropore mother tank;
5. the aramid fiber yarns are smoothly communicated in respective channels without crossing and knotting; in the embodiment, the aramid filaments are pulled from two ends of the aramid filaments by a tool to be straightened, so that the aramid filaments can pass through respective channels smoothly without crossing and knotting;
6. and (3) manually removing the napped aramid fiber yarns and/or a tool for drawing the aramid fiber yarns, and properly adjusting the passage barriers.
II, activation:
carrying out surface treatment on the aramid fiber silk matrix subjected to surface etching so as to adsorb a layer of easily oxidized substances on the surface of the aramid fiber silk matrix; the method specifically comprises the following steps:
1. adding 80% of tap water by volume into the activation mother tank;
2. 10% by volume of a cleaning agent, in this example, 10g/L (calculated as the volume of the mother tank) of SnCl2 & 2H was added2O and 100ml/L (calculated by the volume of the mother tank) of HCl solution;
3. filling the mother tank with water;
4. manually adjusting the pressing device and manually adjusting the flow switch to immerse the aramid fiber filaments in the liquid medicine in the activation mother tank;
5. the aramid fiber yarns are smoothly communicated in respective channels without crossing and knotting; in the embodiment, the aramid filaments are pulled from two ends of the aramid filaments by a tool to be straightened, so that the aramid filaments can pass through respective channels smoothly without crossing and knotting;
6. and (3) manually removing the napped aramid fiber yarns and/or a tool for drawing the aramid fiber yarns, and properly adjusting the passage barriers.
Tap water was added to fill the mother tank for 7.24 hours.
Thirdly, dipping palladium:
forming a layer of colloidal palladium particles on the surface of the activated aramid fiber filament substrate by using a palladium liquid;
1. adding pure water with the volume of 70% into a palladium mother liquor tank;
2. adding 5% colloidal palladium by volume into a palladium liquid mother tank, and then adding 150ML/L (calculated by the volume of the mother tank) of analytically pure-grade hydrochloric acid;
3. filling the mother tank with water;
4. manually adjusting a pressing device and a flow switch to immerse the activated aramid fiber filaments in the liquid medicine of the palladium mother liquid tank;
5. the aramid fiber yarns are smoothly communicated in respective channels without crossing and knotting; in the embodiment, the aramid filaments are pulled from two ends of the aramid filaments by a tool to be straightened, so that the aramid filaments can pass through respective channels smoothly without crossing and knotting;
6. and (3) manually removing the napped aramid fiber yarns and/or a tool for drawing the aramid fiber yarns, and properly adjusting the passage barriers.
7. The prepared liquid medicine 100ML is added at certain intervals as required to control the thickness of the plating layer as required.
Four, copper (electroless copper plating)
Forming a copper coating on the surface of the aramid fiber silk matrix by a chemical method; with the present invention, only after electroless copper plating is performed can subsequent electrolytic copper be performed.
1. Adding 80% pure water by volume into the copper dissolving mother tank;
2. adding 13.5ml/L (calculated by the volume of the mother tank) of copper sulfate, 100ml/L (calculated by the volume of the mother tank) of formaldehyde, 13ml/L (calculated by the volume of the mother tank) of sodium hydroxide and 0.3ml/L (calculated by the volume of the mother tank) of catalyst into a copper dissolving mother tank; in this example, potassium sodium tartrate (TART · K · Na) was used as the catalyst.
3. Filling the mother tank with water;
4. manually adjusting a material pressing device and manually adjusting a flow switch to immerse the palladium-soaked aramid fiber filaments in the chemical copper bath liquid medicine;
5. the aramid fiber yarns are smoothly communicated in respective channels without crossing and knotting; in the embodiment, the aramid filaments are pulled from two ends of the aramid filaments by a tool to be straightened, so that the aramid filaments can pass through respective channels smoothly without crossing and knotting;
6. manually removing the napped aramid fiber yarns and/or a tool for drawing the aramid fiber yarns, and properly adjusting the passage barriers;
and analyzing the content of the liquid medicine in 7.12 hours, and adding the liquid medicine to a standard value according to consumption.
Fifthly, electro-coppering:
the copper plating layer is formed by electroplating, which specifically comprises the following steps:
1. adding 70% pure water by volume into the electrolytic copper mother tank, and heating to 50-60 degrees, in the embodiment, 55 degrees;
2. adding 2g/L potassium hydroxide (calculated by the volume of the mother tank), adding 125g/L potassium cyanide (calculated by the volume of the mother tank), dissolving 55g/L cuprous cyanide (calculated by the volume of the mother tank) in pure water, and stirring and adding the solution into the electrolytic copper mother tank;
3. filling the mother tank with pure water;
4. turning on a rectifier to adjust current parameters, wherein in the embodiment, the current is adjusted to be 0.14A/400D/line;
5. manually adjusting a material pressing device and manually adjusting a flow switch to immerse the copper-dissolved aramid fiber filaments in the liquid medicine of the electrolytic copper mother tank;
6. the aramid fiber yarns are smoothly communicated in respective channels without crossing and knotting; in the embodiment, the aramid filaments are pulled from two ends of the aramid filaments by a tool to be straightened, so that the aramid filaments can pass through respective channels smoothly without crossing and knotting;
7. and (3) manually removing the napped aramid fiber yarns and/or a tool for drawing the aramid fiber yarns, and properly adjusting the passage barriers.
And analyzing the content of the liquid medicine in 8.24 hours, adding the liquid medicine to a standard value according to consumption, and adjusting the content of potassium cyanide according to analysis if the anode is blackened.
Sixthly, electronickelling:
the nickel plating layer is formed by electroplating, and the method specifically comprises the following steps:
1. adding 35% pure water by volume into an electric nickel mother tank and heating to 60 ℃;
2. adding 500ml/L of nickel sulfamate (calculated by the volume of the mother tank) and 15g/L of nickel chloride (calculated by the volume of the mother tank), then adding 40g/L of boric acid (calculated by the volume of the mother tank), and fully and uniformly stirring;
3. filling the mother tank with pure water;
4. turning on the rectifier to adjust the current parameters, in this embodiment, the current is adjusted to 0.13A/400D/line;
5. manually adjusting a material pressing device and manually adjusting a flow switch to immerse the electro-coppered aramid fiber filaments in the liquid medicine of the electro-nickel mother tank;
6. the aramid fiber yarns are smoothly communicated in respective channels without crossing and knotting; in the embodiment, the aramid filaments are pulled from two ends of the aramid filaments by a tool to be straightened, so that the aramid filaments can pass through respective channels smoothly without crossing and knotting;
7. and (3) manually removing the napped aramid fiber yarns and/or a tool for drawing the aramid fiber yarns, and properly adjusting the passage barriers.
Analyzing the content of the liquid medicine in 8.24 hours, adding the liquid medicine to a standard value according to consumption, and detecting the pH value of the nickel liquid medicine every 8 hours, wherein the range is 3.8-4.4.
Seventhly, silver electroplating:
forming a silver plating layer on the nickel plating layer by electroplating, which specifically comprises the steps of:
1. adding 50% pure water by volume into a silver electroplating mother tank, and heating to 30-40 ℃, in the embodiment, heating to 40 ℃;
2. adding 120g/L potassium cyanide (calculated by the volume of the mother tank), adding 30g/L silver cyanide (calculated by the volume of the mother tank), and finally adding 30ml/L silver brightening agent (calculated by the volume of the mother tank) and fully and uniformly stirring;
3. filling the mother tank with water; turning on a rectifier and adjusting current parameters; in this embodiment, the current is adjusted to 0.4A/400D/line;
4. manually adjusting a material pressing device and manually adjusting a flow switch to immerse the nickel-electroplated aramid fiber filaments in the liquid medicine of the silver electroplating mother tank;
5. the aramid fiber yarns are smoothly communicated in respective channels without crossing and knotting; in the embodiment, the aramid filaments are pulled from two ends of the aramid filaments by a tool to be straightened, so that the aramid filaments can pass through respective channels smoothly without crossing and knotting;
6. and (3) manually removing the napped aramid fiber yarns and/or a tool for drawing the aramid fiber yarns, and properly adjusting the passage barriers.
Analyzing the water content of the traditional Chinese medicine in the silver electroplating mother tank within 7.24 hours, adding 1.5Kg of silver anode every 24 hours according to the condition that the content of the traditional Chinese medicine in the silver electroplating mother tank reaches a standard value;
eighthly, passivation:
the method comprises the following steps of (1) passivating by using an organic hole sealing agent to form a protective film so as to improve the performance of the conductive aramid fiber yarn, wherein the method comprises the following steps:
1. adding 80% pure water by volume into the passivation mother tank, and heating to 30-40 deg.C, in this example, to 40 deg.C;
2. adding 0.5g/L of organic hole sealing agent (calculated by the volume of the mother tank);
3. filling the mother tank with water;
4. manually adjusting a material pressing device and manually adjusting a flow switch to immerse the electro-silvered aramid fiber filaments in the liquid medicine of the passivation mother tank;
5. the aramid fiber yarns are smoothly communicated in respective channels without crossing and knotting; in the embodiment, the aramid filaments are pulled from two ends of the aramid filaments by a tool to be straightened, so that the aramid filaments can pass through respective channels smoothly without crossing and knotting;
6. and (3) manually removing the napped aramid fiber yarns and/or a tool for drawing the aramid fiber yarns, and properly adjusting the passage barriers.
The liquid medicine is replaced after 7.36 hours, and new liquid medicine is prepared again.
Through the steps, a plurality of metal layers can be plated on the aramid fiber yarn to form the conductive aramid fiber yarn. Copper, nickel and silver are plated on the aramid fiber silk substrate of the conductive aramid fiber silk in sequence, and the multilayer metal plating layer has good bonding force with the substrate, so that the plating layer is not easy to fall off, and the strength and the conductivity are also excellent.
Ninthly, weighing:
and intercepting the conductive aramid fiber yarn with the length of 1M, weighing the conductive aramid fiber yarn on an electronic scale with the measuring range of 100g, and recording the unit weight (g) per meter of the product on a corresponding conductive aramid fiber yarn roll material, so that the material meeting the requirement can be detected. And the conductive aramid fiber yarns with consistency can be selected as subsequent weaving raw materials by weighing.
Tenthly, testing the plating layer:
selecting a conductive aramid fiber filament with the length of 1M, and testing and recording the original resistance value of the conductive aramid fiber filament; then, hanging one end of the conductive aramid fiber yarn on an object with the weight of 200g, pulling the other end of the conductive aramid fiber yarn by hands, putting the conductive aramid fiber yarn on a barrel, and recovering and pulling the conductive aramid fiber yarn for 100 times, and testing and recording the resistance value after the test;
and comparing the original resistance value with the tested resistance value, and detecting whether the resistance value change rate of the conductive aramid fiber yarn is not more than 20%.
Conductive aramid fiber yarns with the conductive performance meeting the requirement can be selected as weaving raw materials through a plating layer test.
Eleven, ingot splitting:
carrying out ingot splitting operation by using an ingot splitting machine, and adjusting the position of each spindle to ensure that the spindles are positioned at the same position as much as possible during winding, so as to ensure that the length difference of each spindle of the conductive aramid fiber yarn is not more than 10 m;
and twelfth, knitting:
1. preparing a take-up reel, checking whether the wire coil is intact or not, and mounting the take-up reel on a take-up stand;
2. placing all the bobbins on a mandrel so that the braided wire rotates clockwise when looking down at the bobbins;
3. setting knitting parameters, enabling the knitting wires to penetrate through corresponding small holes of the clamping heads, and concentrating the knitting wires in the center of the ring; after all strands are gathered, the machine is started to weave a 25.0-50.0mm (1-2 inches) piece of wire;
4. rotating the bobbin anticlockwise to clamp the braided wire;
5. winding the traction wire by a traction wheel for 3-4 circles, fixing one end of the traction wire on a take-up reel, and binding the other end of the traction wire with the shielding lead wire;
6. when the wave-proof sleeve is woven, the speed is adjusted to enable the strand to form a small cone, whether the woven sleeve is loose or broken is visually checked, and the weaving can be carried out after the fault is eliminated.
Through the steps, the light aramid fiber wave-proof sleeve can be woven through the conductive aramid fiber yarns.
The prepared light aramid fiber wave-proof sleeve is subjected to sample conveying inspection, and through inspection, relevant performance parameters of relevant products are as follows:
while the invention has been described with reference to the above embodiments, the scope of the invention is not limited thereto, and the above components may be replaced with similar or equivalent elements known to those skilled in the art without departing from the spirit of the invention.
Claims (10)
1. The utility model provides a light aramid fiber prevents ripples cover which characterized in that, it is woven by electrically conductive aramid fiber silk and forms, electrically conductive aramid fiber silk by interior and outer aramid fiber silk base member, copper nickel metal coating and silver metal coating of including in proper order, copper nickel metal coating adhere to aramid fiber silk base member surface, silver metal coating adhere to copper nickel metal coating surface.
2. The light aramid fiber wave-proof sleeve as claimed in claim 1, wherein the conductive aramid fiber filaments are processed and manufactured by the following steps in sequence:
micropore: etching the surface of the aramid fiber silk matrix to form a microscopic rough surface on the surface of the aramid fiber silk matrix so as to increase the bonding force between the aramid fiber silk matrix and the metal coating;
and (3) activation: carrying out surface treatment on the aramid fiber silk matrix subjected to surface etching so as to adsorb a layer of easily oxidized substances on the surface of the aramid fiber silk matrix;
palladium leaching: forming a layer of colloidal palladium particles on the surface of the activated aramid fiber filament substrate by using a palladium liquid;
copper melting: forming a copper plating layer by a chemical method;
electro-copper: forming a copper plating layer by an electroplating method;
nickel electroplating: forming a nickel plating layer by an electroplating method;
silver electroplating: forming a silver plating layer by an electroplating method;
passivation: passivation treatment is performed using a sealant to form a protective film.
3. The lightweight aramid wave-proof jacket of claim 2, wherein the micro-porous step comprises:
adding a mixed solution of sulfuric acid and hydrochloric acid with 70% volume into the micropore mother tank;
dissolving a strong oxidant in the mixed solution of the micropore mother tank according to the proportion of 100 g/L;
filling the mixed solution of sulfuric acid and hydrochloric acid into the micropore mother tank;
the material pressing device is manually adjusted, the flow switch is manually adjusted, and the aramid fiber yarn substrate is immersed in the liquid medicine.
4. The lightweight aramid wave-proof jacket of claim 2, wherein the activating step comprises:
adding 80% of tap water by volume into an activation mother tank;
adding 10% by volume of cleaning agent;
filling the mother tank with water;
the material pressing device is manually adjusted, the flow switch is manually adjusted, and the aramid fiber yarns after the micropores are immersed in the liquid medicine.
5. The lightweight aramid wave-proof sleeve as recited in claim 2, wherein the step of immersing in palladium comprises:
adding pure water with the volume of 70% in a palladium mother liquor tank;
adding 5% colloidal palladium into a palladium mother liquor tank, and then adding 150ML/L analytical pure-grade hydrochloric acid;
adding pure water into the full mother tank;
manually adjusting a pressing device and a flow switch to immerse the activated aramid fiber filaments in the liquid medicine of the palladium mother liquid tank;
adding the prepared liquid medicine 100ML at certain intervals.
6. The lightweight aramid wave-proof sleeve as recited in claim 2, wherein the step of copper-melting comprises:
adding pure water with the volume of 80% into the copper dissolving mother tank;
13.5ml/L of copper sulfate, 100ml/L of formaldehyde, 13ml/L of sodium hydroxide and 0.3ml/L of catalyst are sequentially added into a copper dissolving mother tank;
adding water into the full mother tank;
manually adjusting a material pressing device and manually adjusting a flow switch to immerse the aramid fiber filaments after the target immersion into the liquid medicine in the plating tank;
analyzing the content of the liquid medicine in 12 hours, and adding the liquid medicine to a standard value according to consumption.
7. The lightweight aramid wave-proof jacket of claim 2, wherein the electro-coppering step comprises:
adding 70% pure water by volume into the electrolytic copper mother tank, and heating to 50-60 ℃;
2g/L of potassium hydroxide is added, 125g/L of potassium cyanide is added, 55g/L of cuprous cyanide is dissolved in pure water and then stirred and added into the electrolytic copper mother tank;
adding pure water into the full mother tank;
turning on a rectifier and adjusting current parameters;
manually adjusting a pressing device and a flow switch to immerse the copper-dissolved aramid fiber filaments in the liquid medicine;
and analyzing the content of the liquid medicine after 24 hours, adding the liquid medicine to a standard value according to consumption, and adjusting the content of potassium cyanide according to analysis when the anode is blackened.
8. The lightweight aramid wave-proof jacket of claim 2 wherein the step of electro-nickeling comprises:
adding 35% pure water by volume into an electric nickel mother tank, and heating to 60 ℃;
adding 500ml/L nickel sulfamate and 15g/L nickel chloride, then adding 40g/L boric acid, and fully and uniformly stirring
Adding water into the full mother tank;
turning on a rectifier and adjusting current parameters;
manually adjusting a material pressing device and manually adjusting a flow switch to immerse the electro-coppered aramid fiber filaments in the liquid medicine;
analyzing the content of the liquid medicine in 24 hours, adding the liquid medicine to a standard value according to consumption, and detecting the pH value of the nickel liquid medicine every 8 hours, wherein the range is 3.8-4.4.
9. The lightweight aramid wave-proof jacket of claim 2, wherein the electro-silvering step comprises:
adding 50% pure water by volume in a silver electroplating mother tank and heating to 30-40 ℃;
adding 120g/L potassium cyanide into the silver electroplating mother tank, then adding 30g/L silver cyanide, and finally adding 30ml/L silver brightening agent and fully and uniformly stirring;
adding water into the full mother tank; turning on a rectifier and adjusting current parameters;
manually adjusting a material pressing device and manually adjusting a flow switch to immerse the nickel-electroplated aramid fiber filaments in the liquid medicine;
analyzing the content of the chemical solution in 24 hours, adding 1.5Kg of silver anode every 24 hours according to the content of the chemical solution added to a standard value after consumption.
10. The lightweight aramid wave-resistant sheath of claim 2 wherein the passivating step comprises:
adding 80% pure water by volume into a passivation mother tank, and heating to 30-40 ℃;
adding 0.5g/L of organic hole sealing agent;
adding water into the full mother tank;
manually adjusting a material pressing device and manually adjusting a flow switch to immerse the electro-silvered aramid fiber in the liquid medicine;
the liquid medicine is replaced after 36 hours, and new liquid medicine is prepared again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011174326.8A CN112267116A (en) | 2020-10-28 | 2020-10-28 | Light aramid fiber wave-proof sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011174326.8A CN112267116A (en) | 2020-10-28 | 2020-10-28 | Light aramid fiber wave-proof sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112267116A true CN112267116A (en) | 2021-01-26 |
Family
ID=74344401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011174326.8A Withdrawn CN112267116A (en) | 2020-10-28 | 2020-10-28 | Light aramid fiber wave-proof sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112267116A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114709015A (en) * | 2022-03-24 | 2022-07-05 | 深圳市晖耀电子有限公司 | Super-strong toughness cable |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103221577A (en) * | 2010-07-23 | 2013-07-24 | 希斯康先进材料股份有限公司 | Electrically conductive metal-oated fibers, continuous process for preparation thereof, and use thereof |
| CN104878593A (en) * | 2015-06-01 | 2015-09-02 | 深圳昊天龙邦复合材料有限公司 | Electromagnetic shielding aramid fiber preparation method and electromagnetic shielding layer |
| CN105256291A (en) * | 2015-06-10 | 2016-01-20 | 上海大学 | Method for preparing aramid fiber nickel/copper plating double-plating-layer composite conductive fibers |
| CN107620098A (en) * | 2017-08-23 | 2018-01-23 | 河南航天精工制造有限公司 | A kind of steel alloy plating silverware and preparation method thereof |
| CN207895888U (en) * | 2017-11-17 | 2018-09-21 | 安徽科顺线缆科技有限公司 | A kind of tension is anti-to deflect electromagnetism wave prevention sleeve |
| CN109659079A (en) * | 2018-11-02 | 2019-04-19 | 广州凯恒科塑有限公司 | Thin-wall wave-proof sleeve for aerospace and preparation method thereof |
| CN110983764A (en) * | 2019-12-20 | 2020-04-10 | 上海大学 | Conductive aromatic polyamide fiber with composite metal coating structure |
-
2020
- 2020-10-28 CN CN202011174326.8A patent/CN112267116A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103221577A (en) * | 2010-07-23 | 2013-07-24 | 希斯康先进材料股份有限公司 | Electrically conductive metal-oated fibers, continuous process for preparation thereof, and use thereof |
| CN104878593A (en) * | 2015-06-01 | 2015-09-02 | 深圳昊天龙邦复合材料有限公司 | Electromagnetic shielding aramid fiber preparation method and electromagnetic shielding layer |
| CN105256291A (en) * | 2015-06-10 | 2016-01-20 | 上海大学 | Method for preparing aramid fiber nickel/copper plating double-plating-layer composite conductive fibers |
| CN107620098A (en) * | 2017-08-23 | 2018-01-23 | 河南航天精工制造有限公司 | A kind of steel alloy plating silverware and preparation method thereof |
| CN207895888U (en) * | 2017-11-17 | 2018-09-21 | 安徽科顺线缆科技有限公司 | A kind of tension is anti-to deflect electromagnetism wave prevention sleeve |
| CN109659079A (en) * | 2018-11-02 | 2019-04-19 | 广州凯恒科塑有限公司 | Thin-wall wave-proof sleeve for aerospace and preparation method thereof |
| CN110983764A (en) * | 2019-12-20 | 2020-04-10 | 上海大学 | Conductive aromatic polyamide fiber with composite metal coating structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114709015A (en) * | 2022-03-24 | 2022-07-05 | 深圳市晖耀电子有限公司 | Super-strong toughness cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101828239B (en) | The electrical shielding material be made up of metallized stainless steel monofilament yarn | |
| US7105740B2 (en) | Stranded copper-plated aluminum cable, and method for its fabrication | |
| JP5255015B2 (en) | Electroless copper plating method for polymer fiber | |
| US10126493B2 (en) | Method and apparatus for fabrication of metal-coated optical fiber, and the resulting optical fiber | |
| US4680093A (en) | Metal bonded composites and process | |
| US20130008708A1 (en) | Electrical shielding material composed of metallized aluminum monofilaments | |
| US5935706A (en) | Thermally stable metal coated polymeric monofilament or yarn | |
| CN112267116A (en) | Light aramid fiber wave-proof sleeve | |
| WO2023202267A1 (en) | Multi-metal compounding method for polymeric fiber material, and multi-metal composite fiber | |
| TW201837240A (en) | Plated wire rod material, method for producing same, and cable, electric wire, coil and spring member, each of which is formed using same | |
| CN102632687A (en) | Method for manufacturing integral wire mesh | |
| JP2013026077A (en) | Covered wire and manufacturing method therefor | |
| JP6129001B2 (en) | Electroless metal plating method for organic fiber materials | |
| CN113510405B (en) | Welding wire for welding titanium/steel dissimilar materials and manufacturing process thereof | |
| CN100386459C (en) | Electronic communication shielded alloy wire and its production method | |
| US11246248B1 (en) | Electrical shielding material composed of metallized stainless steel or low carbon steel monofilament yarns | |
| KR101504154B1 (en) | Carbon fiber comprising ZnO nano-rod and fabrication method of the same | |
| CN105945084B (en) | Surface cupric stainless steel fibre and its preparation technology | |
| CN109056009A (en) | A kind of copper foil for printed circuit board and preparation method thereof | |
| JP6746842B2 (en) | Method for producing cycloolefin yarn with metal coating | |
| US20210032803A1 (en) | Conductive and flexible carbon fiber | |
| CA1263338A (en) | Metal coated filaments, process for their production, and articles made therefrom | |
| JP2021167471A (en) | Composite yarn and method for manufacturing the same | |
| CN113215630A (en) | High-performance carbon fiber and electroplating method thereof | |
| CN111223597A (en) | Optical fiber jumping fiber photoelectric signal synchronous transmission line |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Building 101, Building B, Building C, Building D, Building E, Building F, No. 22, Fengqi Road, Fuchengao Community, Longgang District, Shenzhen, Guangdong 518000 Applicant after: Shenzhen Asia Pacific Aviation Technology Co.,Ltd. Address before: No.68, Jiahu Road, fuchengao community, Pinghu street, Longgang District, Shenzhen City, Guangdong Province Applicant before: SHENZHEN ASIA-PACIFIC AVIATION TECHNOLOGY Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210126 |
|
| WW01 | Invention patent application withdrawn after publication |