CN105552624A - Anti-electromagnetic interference socket device assembly - Google Patents
Anti-electromagnetic interference socket device assembly Download PDFInfo
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- CN105552624A CN105552624A CN201610111332.6A CN201610111332A CN105552624A CN 105552624 A CN105552624 A CN 105552624A CN 201610111332 A CN201610111332 A CN 201610111332A CN 105552624 A CN105552624 A CN 105552624A
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- Prior art keywords
- permalloy
- copper
- nickel alloy
- cover body
- socket device
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6598—Shield material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6581—Shield structure
Abstract
The invention discloses an anti-electromagnetic interference socket device assembly. An electromagnetic shielding cover body covers the socket device assembly; the electromagnetic shielding cover body which is of a sandwich structure specifically comprises two layers of permalloy plates and a layer of foamed aluminum-copper-nickel alloy sandwiched between the two layers of the permalloy plates and can realize a good shielding effect for electromagnetic waves at a low frequency band and a high frequency band; meanwhile, pollution from electromagnetic radiation of the socket device assembly to the environment is prevented, and interference from outer electromagnetic waves to the socket device assembly is also reduced; furthermore, a nanosheet super-hydrophobic structure is formed after the surface of the permalloy plate of the cover body is subjected to a hydrochloric acid treatment, so that a self-cleaning, anti-fogging, anti-icing and erosion-resisting protective effect is played, and the service life of the socket device assembly can be prolonged.
Description
Technical field
The invention belongs to socket field, more specifically relate to a kind of socket device combination of electromagnetism interference.
Background technology
In our living environment, various electrical appliance such as TV, microwave oven, electromagnetic oven, computer, mobile phone etc. all can generate electromagnetic waves, and the electromagnetic wave that broadcasting station, TV station, satellite communication etc. are launched, be all present in our living environment.We, while the convenient life of enjoyment, are also just together morning and night with electromagnetic wave, coexist peacefully.But, along with the development of modern technologies, the impact of electromagenetic wave radiation on environment increases day by day, on the one hand, electromagnetic radiation can affect the healthy of people, and can cause severe jamming to the electronic equipment of surrounding, on the other hand, electromagnetic radiation meeting reveal information, makes the instruments such as computer without security assurance information.
Socket device combination is applicable to plant equipment, construction site, chemical industry, harbour, airport, plumbing and sewage treatment project etc.The socket device combination that research has a good electrical magnetic shield performance can reduce environmental pollution that electromagnetic radiation brings and the impact on human health.Meanwhile, socket device combination is owing to being power equipment, and surface clean difficulty in its use procedure, this also can bring inconvenience to use.
Summary of the invention
The present invention is directed to background technology Problems existing, provide a kind of socket device of electromagnetism interference to combine.
Object of the present invention is achieved through the following technical solutions:
A kind of socket device combination of electromagnetism interference; the outside of described socket device combination is covered with the cover body of electromagnetic shielding; this cover body adopts permalloy plate and foamed aluminium-copper-nickel alloy to realize electro-magnetic screen function; cover body surface forms the super-drainage structure of nanometer sheet through HCl treatment simultaneously, serves automatically cleaning, erosion-resisting protective effect.
Described cover body is sandwich structure, is specially two-layer permalloy plate therebetween one deck foamed aluminium-copper-nickel alloy; The thickness of described permalloy plate is 0.5mm, and this permalloy plate surface is covered by nanometer sheet structure; In this permalloy plate, the ratio of Ni and Fe is 2:3, and adds Mo, Si element that mass fraction is respectively 0.5% and 1%; The thickness of described foamed aluminium-copper-nickel alloy is 3mm, and in this foamed aluminium-copper-nickel alloy, the content of nickel is 5% ~ 40%; Described nanometer sheet structure is described permalloy plate through hydrochloric acid and low-surface-energy 17 fluorine fat in last of the ten Heavenly stems trimethyl-tryptophane is hydride modified obtains.
Preferably, the making of described cover body comprises the following steps:
Step one, the preparation of permalloy plate;
1) determination of Ni content
The middle nickel alloy of abandoning tradition and Langaloy, adopt the low nickel alloy of Ni content 40%, and add Mo, Si element that mass fraction is respectively 0.5% and 1% wherein;
2) rolling
Ni and Fe of molten condition is mixed according to the ratio of 2:3, and adds Mo, Si element that mass fraction is respectively 0.5% and 1% wherein, by smelting fusion method and obtaining permalloy plate through rolling;
3) heat treatment
Heat treatment divides annealing, Quench and temper, final cooling stage; Annealing stage: permalloy is 1000 ~ 1300 DEG C of annealing 5h in protection helium atmosphere; In the Quench and temper stage: alloy is cooled, then coordinate 600 DEG C of high temperings; Final cooling stage: Temperature fall under protection helium atmosphere, obtains permalloy plate after supercooling;
Step 2, the process of permalloy plate surface hydrophobicity structure;
1) permalloy plate is put into acetone, ethanol, deionized water for ultrasonic 30min successively, then dry up with nitrogen;
2) first prepare the hydrochloric acid solution of 26.5%, put into HF (38w%) solution subsequently, stir, permalloy is put into solution, 75 DEG C of water bath with thermostatic control process 10h take out, and put into drying box drying, obtain the nanometer sheet structure on permalloy surface after then rinsing with a large amount of clear water;
3) be dipped into by the permalloy that HCl treatment is crossed in sodium laurate decorating liquid (29mg/mL), in the drying box of 90 DEG C, be incubated 4h, the low-surface-energy completing permalloy surface is modified;
Step 3, the preparation of foamed aluminium-copper-nickel alloy;
1) heating of metal aluminium, copper and mickel, to molten condition, form metal mixed liquid according to 1:2:2 ratio respectively;
2) calcium metal is added hybrid metal liquid to stir, viscosity adjustment is carried out to the metal of molten condition, the viscosity of melt is increased;
3) when viscosity is applicable to foaming, by ZrH
2blast as blowing agent in molten metal, making blowing agent and the abundant Homogeneous phase mixing of molten metal by stirring, in the viscous molten metal of heating, discharging H
2, molten metal expands, and obtains foamed aluminium-copper-nickel alloy after cooling;
Step 4, the preparation of electromagnetic shielding cover body;
1) foamed aluminium-copper-nickel alloy is cut into board-like material;
2) smear adhesive on the two sides of foamed aluminium-copper-nickel alloy, permalloy version is bonded together with it, complete the making of broadband electromagnetic shielding cover body.
Usefulness of the present invention is:
1. the choosing of permalloy, adopts in low nickel alloy and adds Mo, Si element, obtain the shielding material that initial permeability is high and not easily saturated, have excellent screening effectiveness to low frequency magnetic field; By improving permalloy prior heat treatment process, by process annealing in protective atmosphere, ensure that the purity of material, brightness and hardness; By increasing the Quench and temper stage, the shielding properties of permalloy is largely increased; Adopt foam Solder for Al-Cu Joint Welding-nickel as shielding material, high-frequency electromagnetic shielding Performance Ratio adopts single foam metal to be greatly improved; Adopt the shielding material of " sandwich " structure, on the one hand, good shielding action is served to the electromagnetic wave of low-frequency range and high band, on the other hand simultaneously, both the Electromagnetic Radiation on Environment having prevented socket device to combine pollutes, and additionally reduces the interference that external electromagnetic ripple combines socket device;
2. permalloy surface is through persalt and low-surface-energy process, the nanometer sheet structure of microcosmic can be formed on its surface, this structure can play hydrophobic effect, plays self-cleaning effect to socket device combination, can be good at antifog, Anti-freezing, anticorrosive simultaneously.
Accompanying drawing explanation
The invention will be further described to utilize accompanying drawing, but the embodiment in accompanying drawing does not form any limitation of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, can also obtain other accompanying drawing according to the following drawings.
Fig. 1 is cover body structural representation of the present invention.
Embodiment
Carrying out wide band electromagnetic shielding is must consider in many equipment de-sign processes, for different materials, different structure, different process is different to electromagnetic shielding effectiveness, shielding material design of the present invention adopts a kind of similar sandwich structure, realizes electromagnetic shielding with the structural model of therebetween one deck foamed aluminium-copper-nickel alloy of two-layer permalloy plate.
Metal material is the fields such as the engineering material that electric equipment is commonly used, extensive application in daily productive life, such as traffic, decoration, machinery, electric power.But in use, corrosion of metal brings huge economic loss to social production, corrosion process be mostly through moisture or metal be in the environment contacted with water, if the contact of water and metal can be blocked, can well address this problem.Super hydrophobic material can be good at the condensation of anti-sealing on its surface and sticks.
The present invention is by conjunction with electromagnetic shielding and super-hydrophobic technology; a kind of socket device of electromagnetism interference is provided to combine; the outside of described socket device combination is covered with the cover body of electromagnetic shielding; this cover body adopts permalloy plate and foamed aluminium-copper-nickel alloy to realize electro-magnetic screen function; cover body surface forms the super-drainage structure of nanometer sheet through HCl treatment simultaneously, serves automatically cleaning, erosion-resisting protective effect.
In order to make those skilled in the art better understand the present invention program, below in conjunction with legend the present invention being made and further illustrating:
Fig. 1 is the schematic diagram of cover body structure of the present invention.Wherein, 01 is permalloy plate, and 02 is foamed aluminium-copper-nickel alloy.
5 embodiments are provided to be described further described socket device combination below:
Embodiment 1
A kind of socket device combination of electromagnetism interference; the outside of described socket device combination is covered with the cover body of electromagnetic shielding; this cover body adopts permalloy plate (01) and foamed aluminium-copper-nickel alloy (02) to realize electro-magnetic screen function; cover body surface forms the super-drainage structure of nanometer sheet through HCl treatment simultaneously, serves automatically cleaning, erosion-resisting protective effect.
Described cover body is sandwich structure, is specially two-layer permalloy plate (01) therebetween one deck foamed aluminium-copper-nickel alloy (02); The thickness of described permalloy plate (01) is 0.5mm, and this permalloy plate (01) surface is for be covered by nanometer sheet structure; In this permalloy plate (01), the ratio of Ni and Fe is 2:3, and adds Mo, Si element that mass fraction is respectively 0.5% and 1%; The thickness of described foamed aluminium-copper-nickel alloy (02) is 3mm, the content about 5 ~ 40% of nickel in this foamed aluminium-copper-nickel alloy (02); Described nanometer sheet structure is described permalloy plate (01) through hydrochloric acid and low-surface-energy 17 fluorine fat in last of the ten Heavenly stems trimethyl-tryptophane is hydride modified obtains.
Preferably, the making of described cover body comprises the following steps:
Step one, the preparation of permalloy plate;
1) determination of Ni content
The middle nickel alloy of abandoning tradition and Langaloy, adopt the low nickel alloy of Ni content 40%, and adding Mo, Si element that mass fraction is respectively 0.5% and 1% wherein, the effect of Mo element mainly increases the resistivity of material, and the effect of Si element mainly increases magnetic saturation;
2) rolling
Ni and Fe of molten condition is mixed according to the ratio of 2:3, and adds Mo, Si element that mass fraction is respectively 0.5% and 1% wherein, by smelting fusion method and obtaining permalloy plate through rolling;
3) heat treatment
Heat treatment divides annealing, Quench and temper, final cooling stage; Annealing stage: permalloy is 1000 ~ 1300 DEG C of annealing 5h in protection helium atmosphere; The Quench and temper stage: rationally effective water cooling equipment can make alloy strongly be cooled, and then coordinates 600 DEG C of high temperings, can improve the shielding properties of permalloy plate, improve its screening effectiveness; Final cooling stage: Temperature fall under protection helium atmosphere, obtains permalloy plate after supercooling;
Step 2, the process of permalloy plate surface hydrophobicity structure;
1) permalloy plate is put into acetone, ethanol, deionized water for ultrasonic 30min successively, then dry up with nitrogen;
2) first prepare the hydrochloric acid solution of 26.5%, put into HF (38w%) solution subsequently, stir, permalloy is put into solution, 75 DEG C of water bath with thermostatic control process 10h take out, and put into drying box drying, obtain the nanometer sheet structure on permalloy surface after then rinsing with a large amount of clear water;
3) be dipped into by the permalloy that HCl treatment is crossed in sodium laurate decorating liquid (29mg/mL), in the drying box of 90 DEG C, be incubated 4h, the low-surface-energy completing permalloy surface is modified;
Step 3, the preparation of foamed aluminium-copper-nickel alloy;
1) heating of metal aluminium, copper and mickel, to molten condition, form metal mixed liquid according to 1:2:2 ratio respectively;
2) calcium metal is added hybrid metal liquid to stir, carry out viscosity adjustment to the metal of molten condition, the viscosity of melt is increased, and can this step most important for form foam metal, and only when viscosity is suitable, bubble is just unlikely to effusion;
3) when viscosity is applicable to foaming, by ZrH
2blast as blowing agent in molten metal, making blowing agent and the abundant Homogeneous phase mixing of molten metal by stirring, in the viscous molten metal of heating, discharging H
2, molten metal expands, and obtains foamed aluminium-copper-nickel alloy after cooling;
Step 4, the preparation of electromagnetic shielding cover body;
1) foamed aluminium-copper-nickel alloy is cut into board-like material;
2) smear adhesive on the two sides of foamed aluminium-copper-nickel alloy, permalloy version is bonded together with it, complete the making of broadband electromagnetic shielding cover body.
Test data
First test the hydrophobic performance of this cover body, when permalloy plate is after temperature retention time 4h process in decorating liquid, its contact angle is 166 degree, and roll angle is less than 5 degree; When in foamed aluminium-copper-nickel alloy, the mass ratio of aluminium, copper, nickel is 1:2:2, carry out electromagnetic shielding test to this cover body and find, its electromagnet shield effect is up to 98dB.
Test result shows that this cover body has good super-hydrophobic effect, can play automatically cleaning, antifog and Anti-freezing effect, plays protection and cleaning action, improve the useful life of socket device combination to socket device combination;
Electromagnetic shielding aspect, electromagnet shield effect is up to 98dB, and socket device combination can be protected from the interference of external electromagnetic ripple, and it decreases the electromagnetic pollution of environment to the shielding of self electromagnetism ripple simultaneously.
Embodiment 2
A kind of socket device combination of electromagnetism interference; the outside of described socket device combination is covered with the cover body of electromagnetic shielding; this cover body adopts permalloy plate (01) and foamed aluminium-copper-nickel alloy (02) to realize electro-magnetic screen function; cover body surface forms the super-drainage structure of nanometer sheet through HCl treatment simultaneously, serves automatically cleaning, erosion-resisting protective effect.
Described cover body is sandwich structure, is specially two-layer permalloy plate (01) therebetween one deck foamed aluminium-copper-nickel alloy (02); The thickness of described permalloy plate (01) is 0.5mm, and this permalloy plate (01) surface is for be covered by nanometer sheet structure; In this permalloy plate (01), the ratio of Ni and Fe is 2:3, and adds Mo, Si element that mass fraction is respectively 0.5% and 1%; The thickness of described foamed aluminium-copper-nickel alloy (02) is 3mm, the content about 5 ~ 40% of nickel in this foamed aluminium-copper-nickel alloy (02); Described nanometer sheet structure is described permalloy plate (01) through hydrochloric acid and low-surface-energy 17 fluorine fat in last of the ten Heavenly stems trimethyl-tryptophane is hydride modified obtains.
Preferably, the making of described cover body comprises the following steps:
Step one, the preparation of permalloy plate;
1) determination of Ni content
The middle nickel alloy of abandoning tradition and Langaloy, adopt the low nickel alloy of Ni content 40%, and adding Mo, Si element that mass fraction is respectively 0.5% and 1% wherein, the effect of Mo element mainly increases the resistivity of material, and the effect of Si element mainly increases magnetic saturation;
2) rolling
Ni and Fe of molten condition is mixed according to the ratio of 2:3, and adds Mo, Si element that mass fraction is respectively 0.5% and 1% wherein, by smelting fusion method and obtaining permalloy plate through rolling;
3) heat treatment
Heat treatment divides annealing, Quench and temper, final cooling stage; Annealing stage: permalloy is 1000 ~ 1300 DEG C of annealing 5h in protection helium atmosphere; The Quench and temper stage: rationally effective water cooling equipment can make alloy strongly be cooled, and then coordinates 600 DEG C of high temperings, can improve the shielding properties of permalloy plate, improve its screening effectiveness; Final cooling stage: Temperature fall under protection helium atmosphere, obtains permalloy plate after supercooling;
Step 2, the process of permalloy plate surface hydrophobicity structure;
1) permalloy plate is put into acetone, ethanol, deionized water for ultrasonic 30min successively, then dry up with nitrogen;
2) first prepare the hydrochloric acid solution of 26.5%, put into HF (38w%) solution subsequently, stir, permalloy is put into solution, 75 DEG C of water bath with thermostatic control process 10h take out, and put into drying box drying, obtain the nanometer sheet structure on permalloy surface after then rinsing with a large amount of clear water;
3) be dipped into by the permalloy that HCl treatment is crossed in sodium laurate decorating liquid (29mg/mL), in the drying box of 90 DEG C, be incubated 3.5h, the low-surface-energy completing permalloy surface is modified;
Step 3, the preparation of foamed aluminium-copper-nickel alloy;
1) heating of metal aluminium, copper and mickel, to molten condition, form metal mixed liquid according to 1:1:2 ratio respectively;
2) calcium metal is added hybrid metal liquid to stir, carry out viscosity adjustment to the metal of molten condition, the viscosity of melt is increased, and can this step most important for form foam metal, and only when viscosity is suitable, bubble is just unlikely to effusion;
3) when viscosity is applicable to foaming, by ZrH
2blast as blowing agent in molten metal, making blowing agent and the abundant Homogeneous phase mixing of molten metal by stirring, in the viscous molten metal of heating, discharging H
2, molten metal expands, and obtains foamed aluminium-copper-nickel alloy after cooling;
Step 4, the preparation of electromagnetic shielding cover body;
1) foamed aluminium-copper-nickel alloy is cut into board-like material;
2) smear adhesive on the two sides of foamed aluminium-copper-nickel alloy, permalloy version is bonded together with it, complete the making of broadband electromagnetic shielding cover body.
Test data
First test the hydrophobic performance of this cover body, when permalloy plate is after temperature retention time 3.5h process in decorating liquid, its contact angle is 164 degree, and roll angle is less than 5 degree; When in foamed aluminium-copper-nickel alloy, the mass ratio of aluminium, copper, nickel is 1:1:2, carry out electromagnetic shielding test to this cover body and find, its electromagnet shield effect is up to 96dB.
Test result shows that this cover body has good super-hydrophobic effect, can play automatically cleaning, antifog and Anti-freezing effect, plays protection and cleaning action to socket device combination;
Electromagnetic shielding aspect, electromagnet shield effect is up to 96dB, and socket device combination can be protected from the interference of external electromagnetic ripple, and it decreases the electromagnetic pollution of environment to the shielding of self electromagnetism ripple simultaneously.
Embodiment 3
A kind of socket device combination of electromagnetism interference; the outside of described socket device combination is covered with the cover body of electromagnetic shielding; this cover body adopts permalloy plate (01) and foamed aluminium-copper-nickel alloy (02) to realize electro-magnetic screen function; cover body surface forms the super-drainage structure of nanometer sheet through HCl treatment simultaneously, serves automatically cleaning, erosion-resisting protective effect.
Described cover body is sandwich structure, is specially two-layer permalloy plate (01) therebetween one deck foamed aluminium-copper-nickel alloy (02); The thickness of described permalloy plate (01) is 0.5mm, and this permalloy plate (01) surface is for be covered by nanometer sheet structure; In this permalloy plate (01), the ratio of Ni and Fe is 2:3, and adds Mo, Si element that mass fraction is respectively 0.5% and 1%; The thickness of described foamed aluminium-copper-nickel alloy (02) is 3mm, the content about 5 ~ 40% of nickel in this foamed aluminium-copper-nickel alloy (02); Described nanometer sheet structure is described permalloy plate (01) through hydrochloric acid and low-surface-energy 17 fluorine fat in last of the ten Heavenly stems trimethyl-tryptophane is hydride modified obtains.
Preferably, the making of described cover body comprises the following steps:
Step one, the preparation of permalloy plate;
1) determination of Ni content
The middle nickel alloy of abandoning tradition and Langaloy, adopt the low nickel alloy of Ni content 40%, and adding Mo, Si element that mass fraction is respectively 0.5% and 1% wherein, the effect of Mo element mainly increases the resistivity of material, and the effect of Si element mainly increases magnetic saturation;
2) rolling
Ni and Fe of molten condition is mixed according to the ratio of 2:3, and adds Mo, Si element that mass fraction is respectively 0.5% and 1% wherein, by smelting fusion method and obtaining permalloy plate through rolling;
3) heat treatment
Heat treatment divides annealing, Quench and temper, final cooling stage; Annealing stage: permalloy is 1000 ~ 1300 DEG C of annealing 5h in protection helium atmosphere; The Quench and temper stage: rationally effective water cooling equipment can make alloy strongly be cooled, and then coordinates 600 DEG C of high temperings, can improve the shielding properties of permalloy plate, improve its screening effectiveness; Final cooling stage: Temperature fall under protection helium atmosphere, obtains permalloy plate after supercooling;
Step 2, the process of permalloy plate surface hydrophobicity structure;
1) permalloy plate is put into acetone, ethanol, deionized water for ultrasonic 30min successively, then dry up with nitrogen;
2) first prepare the hydrochloric acid solution of 26.5%, put into HF (38w%) solution subsequently, stir, permalloy is put into solution, 75 DEG C of water bath with thermostatic control process 10h take out, and put into drying box drying, obtain the nanometer sheet structure on permalloy surface after then rinsing with a large amount of clear water;
3) be dipped into by the permalloy that HCl treatment is crossed in sodium laurate decorating liquid (29mg/mL), in the drying box of 90 DEG C, be incubated 2.5h, the low-surface-energy completing permalloy surface is modified;
Step 3, the preparation of foamed aluminium-copper-nickel alloy;
1) heating of metal aluminium, copper and mickel, to molten condition, form metal mixed liquid according to 2:1:2 ratio respectively;
2) calcium metal is added hybrid metal liquid to stir, carry out viscosity adjustment to the metal of molten condition, the viscosity of melt is increased, and can this step most important for form foam metal, and only when viscosity is suitable, bubble is just unlikely to effusion;
3) when viscosity is applicable to foaming, by ZrH
2blast as blowing agent in molten metal, making blowing agent and the abundant Homogeneous phase mixing of molten metal by stirring, in the viscous molten metal of heating, discharging H
2, molten metal expands, and obtains foamed aluminium-copper-nickel alloy after cooling;
Step 4, the preparation of electromagnetic shielding cover body;
1) foamed aluminium-copper-nickel alloy is cut into board-like material;
2) smear adhesive on the two sides of foamed aluminium-copper-nickel alloy, permalloy version is bonded together with it, complete the making of broadband electromagnetic shielding cover body.
Test data
First test the hydrophobic performance of this cover body, when permalloy plate is after temperature retention time 2.5h process in decorating liquid, its contact angle is 162 degree, and roll angle is less than 5 degree; When in foamed aluminium-copper-nickel alloy, the mass ratio of aluminium, copper, nickel is 2:1:2, carry out electromagnetic shielding test to this cover body and find, its electromagnet shield effect is up to 94dB.
Test result shows that this cover body has good super-hydrophobic effect, can play automatically cleaning, antifog and Anti-freezing effect, plays protection and cleaning action to socket device combination; Electromagnetic shielding aspect, electromagnet shield effect is up to 94dB, and socket device combination can be protected from the interference of external electromagnetic ripple, and it decreases the electromagnetic pollution of environment to the shielding of self electromagnetism ripple simultaneously.
Embodiment 4
A kind of socket device combination of electromagnetism interference; the outside of described socket device combination is covered with the cover body of electromagnetic shielding; this cover body adopts permalloy plate (01) and foamed aluminium-copper-nickel alloy (02) to realize electro-magnetic screen function; cover body surface forms the super-drainage structure of nanometer sheet through HCl treatment simultaneously, serves automatically cleaning, erosion-resisting protective effect.
Described cover body is sandwich structure, is specially two-layer permalloy plate (01) therebetween one deck foamed aluminium-copper-nickel alloy (02); The thickness of described permalloy plate (01) is 0.5mm, and this permalloy plate (01) surface is for be covered by nanometer sheet structure; In this permalloy plate (01), the ratio of Ni and Fe is 2:3, and adds Mo, Si element that mass fraction is respectively 0.5% and 1%; The thickness of described foamed aluminium-copper-nickel alloy (02) is 3mm, the content about 5 ~ 40% of nickel in this foamed aluminium-copper-nickel alloy (02); Described nanometer sheet structure is described permalloy plate (01) through hydrochloric acid and low-surface-energy 17 fluorine fat in last of the ten Heavenly stems trimethyl-tryptophane is hydride modified obtains.
Preferably, the making of described cover body comprises the following steps:
Step one, the preparation of permalloy plate;
1) determination of Ni content
The middle nickel alloy of abandoning tradition and Langaloy, adopt the low nickel alloy of Ni content 40%, and adding Mo, Si element that mass fraction is respectively 0.5% and 1% wherein, the effect of Mo element mainly increases the resistivity of material, and the effect of Si element mainly increases magnetic saturation;
2) rolling
Ni and Fe of molten condition is mixed according to the ratio of 2:3, and adds Mo, Si element that mass fraction is respectively 0.5% and 1% wherein, by smelting fusion method and obtaining permalloy plate through rolling;
3) heat treatment
Heat treatment divides annealing, Quench and temper, final cooling stage; Annealing stage: permalloy is 1000 ~ 1300 DEG C of annealing 5h in protection helium atmosphere; The Quench and temper stage: rationally effective water cooling equipment can make alloy strongly be cooled, and then coordinates 600 DEG C of high temperings, can improve the shielding properties of permalloy plate, improve its screening effectiveness; Final cooling stage: Temperature fall under protection helium atmosphere, obtains permalloy plate after supercooling;
Step 2, the process of permalloy plate surface hydrophobicity structure;
1) permalloy plate is put into acetone, ethanol, deionized water for ultrasonic 30min successively, then dry up with nitrogen;
2) first prepare the hydrochloric acid solution of 26.5%, put into HF (38w%) solution subsequently, stir, permalloy is put into solution, 75 DEG C of water bath with thermostatic control process 10h take out, and put into drying box drying, obtain the nanometer sheet structure on permalloy surface after then rinsing with a large amount of clear water;
3) be dipped into by the permalloy that HCl treatment is crossed in sodium laurate decorating liquid (29mg/mL), in the drying box of 90 DEG C, be incubated 7h, the low-surface-energy completing permalloy surface is modified;
Step 3, the preparation of foamed aluminium-copper-nickel alloy;
1) heating of metal aluminium, copper and mickel, to molten condition, form metal mixed liquid according to 1:2:2 ratio respectively;
2) calcium metal is added hybrid metal liquid to stir, carry out viscosity adjustment to the metal of molten condition, the viscosity of melt is increased, and can this step most important for form foam metal, and only when viscosity is suitable, bubble is just unlikely to effusion;
3) when viscosity is applicable to foaming, by ZrH
2blast as blowing agent in molten metal, making blowing agent and the abundant Homogeneous phase mixing of molten metal by stirring, in the viscous molten metal of heating, discharging H
2, molten metal expands, and obtains foamed aluminium-copper-nickel alloy after cooling;
Step 4, the preparation of electromagnetic shielding cover body;
1) foamed aluminium-copper-nickel alloy is cut into board-like material;
2) smear adhesive on the two sides of foamed aluminium-copper-nickel alloy, permalloy version is bonded together with it, complete the making of broadband electromagnetic shielding cover body.
Test data
First test the hydrophobic performance of this cover body, when permalloy plate is after temperature retention time 7h process in decorating liquid, its contact angle is 160 degree, and roll angle is less than 7 degree; When in foamed aluminium-copper-nickel alloy, the mass ratio of aluminium, copper, nickel is 1:2:2, carry out electromagnetic shielding test to this cover body and find, its electromagnet shield effect is up to 98dB.
Test result shows that this cover body has good super-hydrophobic effect, can play automatically cleaning, antifog and Anti-freezing effect, plays protection and cleaning action to socket device combination; Electromagnetic shielding aspect, electromagnet shield effect is up to 98dB, and socket device combination can be protected from the interference of external electromagnetic ripple, and it decreases the electromagnetic pollution of environment to the shielding of self electromagnetism ripple simultaneously.
Embodiment 5
A kind of socket device combination of electromagnetism interference; the outside of described socket device combination is covered with the cover body of electromagnetic shielding; this cover body adopts permalloy plate (01) and foamed aluminium-copper-nickel alloy (02) to realize electro-magnetic screen function; cover body surface forms the super-drainage structure of nanometer sheet through HCl treatment simultaneously, serves automatically cleaning, erosion-resisting protective effect.
Described cover body is sandwich structure, is specially two-layer permalloy plate (01) therebetween one deck foamed aluminium-copper-nickel alloy (02); The thickness of described permalloy plate (01) is 0.5mm, and this permalloy plate (01) surface is for be covered by nanometer sheet structure; In this permalloy plate (01), the ratio of Ni and Fe is 2:3, and adds Mo, Si element that mass fraction is respectively 0.5% and 1%; The thickness of described foamed aluminium-copper-nickel alloy (02) is 3mm, the content about 5 ~ 40% of nickel in this foamed aluminium-copper-nickel alloy (02); Described nanometer sheet structure is described permalloy plate (01) through hydrochloric acid and low-surface-energy 17 fluorine fat in last of the ten Heavenly stems trimethyl-tryptophane is hydride modified obtains.
Preferably, the making of described cover body comprises the following steps:
Step one, the preparation of permalloy plate;
1) determination of Ni content
The middle nickel alloy of abandoning tradition and Langaloy, adopt the low nickel alloy of Ni content 40%, and adding Mo, Si element that mass fraction is respectively 0.5% and 1% wherein, the effect of Mo element mainly increases the resistivity of material, and the effect of Si element mainly increases magnetic saturation;
2) rolling
Ni and Fe of molten condition is mixed according to the ratio of 2:3, and adds Mo, Si element that mass fraction is respectively 0.5% and 1% wherein, by smelting fusion method and obtaining permalloy plate through rolling;
3) heat treatment
Heat treatment divides annealing, Quench and temper, final cooling stage; Annealing stage: permalloy is 1000 ~ 1300 DEG C of annealing 5h in protection helium atmosphere; The Quench and temper stage: rationally effective water cooling equipment can make alloy strongly be cooled, and then coordinates 600 DEG C of high temperings, can improve the shielding properties of permalloy plate, improve its screening effectiveness; Final cooling stage: Temperature fall under protection helium atmosphere, obtains permalloy plate after supercooling;
Step 2, the process of permalloy plate surface hydrophobicity structure;
1) permalloy plate is put into acetone, ethanol, deionized water for ultrasonic 30min successively, then dry up with nitrogen;
2) first prepare the hydrochloric acid solution of 26.5%, put into HF (38w%) solution subsequently, stir, permalloy is put into solution, 75 DEG C of water bath with thermostatic control process 10h take out, and put into drying box drying, obtain the nanometer sheet structure on permalloy surface after then rinsing with a large amount of clear water;
3) be dipped into by the permalloy that HCl treatment is crossed in sodium laurate decorating liquid (29mg/mL), in the drying box of 90 DEG C, be incubated 10h, the low-surface-energy completing permalloy surface is modified;
Step 3, the preparation of foamed aluminium-copper-nickel alloy;
1) heating of metal aluminium, copper and mickel, to molten condition, form metal mixed liquid according to 3:1:2 ratio respectively;
2) calcium metal is added hybrid metal liquid to stir, carry out viscosity adjustment to the metal of molten condition, the viscosity of melt is increased, and can this step most important for form foam metal, and only when viscosity is suitable, bubble is just unlikely to effusion;
3) when viscosity is applicable to foaming, by ZrH
2blast as blowing agent in molten metal, making blowing agent and the abundant Homogeneous phase mixing of molten metal by stirring, in the viscous molten metal of heating, discharging H
2, molten metal expands, and obtains foamed aluminium-copper-nickel alloy after cooling;
Step 4, the preparation of electromagnetic shielding cover body;
1) foamed aluminium-copper-nickel alloy is cut into board-like material;
2) smear adhesive on the two sides of foamed aluminium-copper-nickel alloy, permalloy version is bonded together with it, complete the making of broadband electromagnetic shielding cover body.
Test data
First test the hydrophobic performance of this cover body, when permalloy plate is after temperature retention time 10h process in decorating liquid, its contact angle is 158 degree, and roll angle is less than 10 degree; When in foamed aluminium-copper-nickel alloy, the mass ratio of aluminium, copper, nickel is 3:1:2, carry out electromagnetic shielding test to this cover body and find, its electromagnet shield effect is up to 91dB.
Test result shows that this cover body has good super-hydrophobic effect, can play automatically cleaning, antifog and Anti-freezing effect, plays protection and cleaning action to socket device combination; Electromagnetic shielding aspect, electromagnet shield effect is up to 91dB, and socket device combination can be protected from the interference of external electromagnetic ripple, and it decreases the electromagnetic pollution of environment to the shielding of self electromagnetism ripple simultaneously.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technological invention of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (2)
1. the socket device combination of an electromagnetism interference, is characterized in that, the outside of described socket device combination is covered with the cover body of electromagnetic shielding, and this cover body is sandwich structure, is specially two-layer permalloy plate therebetween one deck foamed aluminium-copper-nickel alloy; The thickness of described permalloy plate is 0.5mm, and this permalloy plate surface is covered by nanometer sheet structure; In this permalloy plate, the ratio of Ni and Fe is 2:3, and adds Mo, Si element that mass fraction is respectively 0.5% and 1%; The thickness of described foamed aluminium-copper-nickel alloy is 3mm, and in this foamed aluminium-copper-nickel alloy, the content of nickel is 5% ~ 40%; Described nanometer sheet structure is described permalloy plate through hydrochloric acid and low-surface-energy 17 fluorine fat in last of the ten Heavenly stems trimethyl-tryptophane is hydride modified obtains.
2. socket device combination according to claim 1, it is characterized in that, the making of described cover body comprises the following steps:
Step one, the preparation of permalloy plate;
1) determination of Ni content
The middle nickel alloy of abandoning tradition and Langaloy, adopt the low nickel alloy of Ni content 40%, and add Mo, Si element that mass fraction is respectively 0.5% and 1% wherein;
2) rolling
Ni and Fe of molten condition is mixed according to the ratio of 2:3, and adds Mo, Si element that mass fraction is respectively 0.5% and 1% wherein, by smelting fusion method and obtaining permalloy plate through rolling;
3) heat treatment
Heat treatment divides annealing, Quench and temper, final cooling stage; Annealing stage: permalloy is 1000 ~ 1300 DEG C of annealing 5h in protection helium atmosphere; In the Quench and temper stage: alloy is cooled, then coordinate 600 DEG C of high temperings; Final cooling stage: Temperature fall under protection helium atmosphere, obtains permalloy plate after supercooling;
Step 2, the process of permalloy plate surface hydrophobicity structure;
1) permalloy plate is put into acetone, ethanol, deionized water for ultrasonic 30min successively, then dry up with nitrogen;
2) first prepare the hydrochloric acid solution of 26.5%, put into HF (38w%) solution subsequently, stir, permalloy is put into solution, 75 DEG C of water bath with thermostatic control process 10h take out, and put into drying box drying, obtain the nanometer sheet structure on permalloy surface after then rinsing with a large amount of clear water;
3) be dipped into by the permalloy that HCl treatment is crossed in sodium laurate decorating liquid (29mg/mL), in the drying box of 90 DEG C, be incubated 4h, the low-surface-energy completing permalloy surface is modified;
Step 3, the preparation of foamed aluminium-copper-nickel alloy;
1) heating of metal aluminium, copper and mickel, to molten condition, form metal mixed liquid according to 1:2:2 ratio respectively;
2) calcium metal is added hybrid metal liquid to stir, viscosity adjustment is carried out to the metal of molten condition, the viscosity of melt is increased;
3) when viscosity is applicable to foaming, by ZrH
2blast as blowing agent in molten metal, making blowing agent and the abundant Homogeneous phase mixing of molten metal by stirring, in the viscous molten metal of heating, discharging H
2, molten metal expands, and obtains foamed aluminium-copper-nickel alloy after cooling;
Step 4, the preparation of electromagnetic shielding cover body;
1) foamed aluminium-copper-nickel alloy is cut into board-like material;
2) smear adhesive on the two sides of foamed aluminium-copper-nickel alloy, permalloy version is bonded together with it, complete the making of broadband electromagnetic shielding cover body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610111332.6A CN105552624A (en) | 2016-02-29 | 2016-02-29 | Anti-electromagnetic interference socket device assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610111332.6A CN105552624A (en) | 2016-02-29 | 2016-02-29 | Anti-electromagnetic interference socket device assembly |
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| CN105552624A true CN105552624A (en) | 2016-05-04 |
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| CN201610111332.6A Pending CN105552624A (en) | 2016-02-29 | 2016-02-29 | Anti-electromagnetic interference socket device assembly |
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| CN109004463A (en) * | 2018-07-16 | 2018-12-14 | 孙备宽 | A kind of anticreep safety socket of band electromagnetic shielding |
| CN112490780A (en) * | 2020-11-20 | 2021-03-12 | 安徽兄弟电子有限公司 | High-definition video connector with good shielding effect and use method |
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| CN109004463A (en) * | 2018-07-16 | 2018-12-14 | 孙备宽 | A kind of anticreep safety socket of band electromagnetic shielding |
| CN112490780A (en) * | 2020-11-20 | 2021-03-12 | 安徽兄弟电子有限公司 | High-definition video connector with good shielding effect and use method |
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Application publication date: 20160504 |