CN103943270A - Novel microwave cable and preparing method thereof - Google Patents
Novel microwave cable and preparing method thereof Download PDFInfo
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- CN103943270A CN103943270A CN201410141266.8A CN201410141266A CN103943270A CN 103943270 A CN103943270 A CN 103943270A CN 201410141266 A CN201410141266 A CN 201410141266A CN 103943270 A CN103943270 A CN 103943270A
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- insulating barrier
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Abstract
The invention discloses a novel microwave cable and a preparing method of the novel microwave cable. The novel microwave cable comprises an inner conductor, a compound insulation layer and a shielding layer. The compound insulation layer is composed of an insulation layer I, an insulation layer II and an insulation layer III. The preparing method of the novel microwave cable comprises the following steps that the insulation layers are prepared, circular tinned copper wires are woven into the shielding layer, the whole woven wires are dipped into tin, and therefore the cable is prepared. The novel microwave cable and the preparing method of the novel microwave cable have the advantages that the problem that an aluminum pipe is not resistant to heat is solved, loss of the insulation layers of the cable is reduced, reaction of an assistant and a solder machine in semi-sintered polytetrafluoroethylene is avoided, tinning is achieved, the requirement for the balance of the electrical performance and the price is met, and the novel microwave cable and the preparing method of the novel microwave cable are suitable for the fields of civil communication.
Description
Technical field
The present invention relates to microwave cable, relate in particular to a kind of novel microwave cable.
The invention still further relates to a kind of preparation method of novel microwave cable.
Background technology
Microwave cable is from the angle of price, the general polytetrafluoroethylene semi-flexible cable that adopts real core, but along with improving constantly of frequency, especially arrive 26.5G or 40G, the electric property of this class cable is difficult to ensure, so occur adopting now the phase-compensated cable of the wrapped form membrane of low-density micropore, but such cable is very expensive, is generally used in military applications.Therefore,, for balance problem between the two, need to provide a kind of new technical scheme to solve the problems referred to above.
Summary of the invention
The invention provides a kind of novel microwave cable.
The present invention also provides a kind of preparation method of novel microwave cable.
The technical solution used in the present invention is:
A kind of novel microwave cable, comprises inner wire, composite insulation layer and screen, and described composite insulation layer is made up of insulating barrier I, insulating barrier II and insulating barrier III, and described insulating barrier I, insulating barrier II and insulating barrier III are coated successively from inside to outside.
Described inner wire is aluminum pipe, and described insulating barrier I is perfluoro alkoxy fluorine carbon Foamex, and described insulating barrier II is semi-sintering polyflon, and described insulating barrier III is Teflon turning film, and described screen is that tin-plating round copper wire braiding forms.
A preparation method for novel microwave cable, comprises the steps:
(1), the preparation of insulating barrier: aluminum pipe is placed on to pay off rack, by head nitrogen injection, perfluoro alkoxy fluorine carbon Foamex is foamed, make insulating barrier I; At the semi-sintering polytetrafluoroethylene of insulating barrier I outer cladding one deck, make insulating barrier II; Carry out the wrapped of turning band, make insulating barrier III;
(2), tin-plating round copper wire braiding is made to screen;
(3), by the line entirety wicking having woven, complete the preparation of cable.
The injection rate of described nitrogen is at 0.3-.0.4cm
3/ min, the foam degrees of nitrogen is 65-70%.
Described polytetrafluoroethylene and auxiliary agent are by carrying out mixing match, wherein the mass ratio between polytetrafluoroethylene and auxiliary agent is 4-6:1, on after mixing, shake up 0.3-0.6h, at the aging 20-25h of the aging chamber of 25-38 DEG C, make auxiliary agent molecule fully and polytetrafluoroethylene mix, then batch mixing is added pre-molding equipment to make prefabricated rods, described polytetrafluoroethylene dielectric constant is 1.5-1.8.
The invention has the beneficial effects as follows: solved the heat labile problem of aluminum pipe, reduce the loss of cable insulation, isolated the reaction of auxiliary agent and tin stove in half sintering polytetrafluoroethylfilm, solve zinc-plated problem, meet the balance requirement of electric property and price, be applicable to commercial communication field.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is structural representation of the present invention.
Fig. 2 is the process chart of the present invention's entirety wicking.
Fig. 3 is the production line flow chart of the present invention's entirety wicking.
Wherein: 1, inner wire, 2, insulating barrier I, 3, insulating barrier II, 4, insulating barrier III, 5, screen.
Embodiment
In order to deepen the understanding of the present invention, below in conjunction with embodiment and accompanying drawing, the invention will be further described, and this embodiment only, for explaining the present invention, does not form the restriction to protection scope of the present invention.
As Figure 1-3, a kind of novel microwave cable of the present invention, comprise inner wire 1, composite insulation layer and screen 5, described composite insulation layer is made up of insulating barrier I 2, insulating barrier II 3 and insulating barrier III 4, described insulating barrier I 2, insulating barrier II 3 and insulating barrier III 4 are coated successively from inside to outside, described inner wire 1 is aluminum pipe, described insulating barrier I 2 is perfluoro alkoxy fluorine carbon Foamex, described insulating barrier II 3 is semi-sintering polyflon, described insulating barrier III 4 is Teflon turning film, and described screen 5 forms for tin-plating round copper wire weaves.
Embodiment 1-3 is a kind of preparation method's of novel microwave cable embodiment.
Embodiment 1
A preparation method for novel microwave cable, comprises the steps:
(1) preparation of insulating barrier:
A, barrel, screw rod, the Die Design of traditional PE foaming production line are become to the nickel-bass alloy material of high temperature, be 0.31 mm internal diameter, external diameter is that the aluminum pipe 1 of 0.80mm is placed on pay off rack, the interior external mold size of design is respectively 6mm, 10mm, insulating barrier I 2 external diameters are designed to 1.20mm, by at head nitrogen injection, perfluoro alkoxy fluorine carbon Foamex being foamed, the injection rate of nitrogen is controlled to 0.3cm
3/ min, by calculating, the foam degrees of realizing nitrogen is 65% left and right, makes insulating barrier I 2;
B, the polytetrafluoroethylene extruding machine of extruding with pasty state is at the semi-sintering polytetrafluoroethylene of insulating barrier I 2 outer cladding one deck, polytetrafluoroethylene and auxiliary agent are carried out to mixing match by following weight, wherein polytetrafluoroethylene is 5000g, auxiliary agent is 1100 g, after mixing, on batch mixer, shake up 0.3h, at the aging 20h of the aging chambers of 25 DEG C, make auxiliary agent molecule fully and polytetrafluoroethylene mix, then batch mixing is added pre-molding equipment to make prefabricated rods, be respectively 1.40mm by interior external mold size, 2.40mm, 140 DEG C of the temperature curves in the design each district of sintering, 195 DEG C, 205 DEG C, 215 DEG C, 200 DEG C, 150 DEG C, piston speed is controlled at 20.1 mm/min, hauling speed is controlled at 6.2m/min, and final external diameter is 2.40mm, by technical recipe, polytetrafluoroethylene dielectric constant is controlled to 1.5 left and right, and design external diameter, to 2.40mm, is made insulating barrier II 3,
C, carry out turning band wrapped of 0.045 mm with horizontal active release band production line, design external diameter, to 2.60mm, is made insulating barrier III 4.
(2), with the at a high speed braiding of 16 ingots, each nail, for being 6 0.12mm Split Down silks, is controlled at pitch between 6.2mm, makes screen 5;
(3) with tinning machine by the line entirety wicking having woven, complete the preparation of cable.
After having woven, outer conductor is handled as follows:
A, surface treatment
A.1, oil removing: alcohol is added in ultrasonic cleaning apparatus, complete oil removing process;
A.2, pickling: zinc chloride, ammonium chloride, hydrochloric acid and water are made to pickle in the ratio of 0.3:2:8:94, cable is carried out to pickling;
A.3, clean: running water is injected to clarifier and make distilled water afterflush cable surface;
A.4, adopt air compressor that cable is dried up.
B, help weldering
Select inorganic nature scaling powder, it is 5cm that cable is entered to the flux bath degree of depth, and two guide wheel spacings are controlled at 40 cm and carried out wire bonding agent processing.
C, oven dry
Adopt the sintering furnace of rectilinear 2 meters to dry, the bake out temperature of setting is 220 DEG C.
D, zinc-plated
The tin of Sn99.99, alloy tin, antioxidant are added in tin stove by 95:4:1, and heated constant temperature to 265 DEG C, passes through the tin scraping mould of 3.15 mm while coming out of the stove, heating collar of die coat, and the temperature of heating collar is also 265 DEG C.
E, alkali cleaning
The alkalies that is 10 by pH by cable, in and the acid residue of cable surface.
F, cleaning
Running water is injected to clarifier and makes the acid-base material of distilled water afterflush cable surface.
G, oven dry
By a joint tube furnace, under the condition of 120 DEG C, dry cable in temperature constant.
Embodiment 2
A preparation method for novel microwave cable, comprises the steps:
(1) preparation of insulating barrier:
A, barrel, screw rod, the Die Design of traditional PE foaming production line are become to the nickel-bass alloy material of high temperature, be 0.32 mm internal diameter, external diameter is that the aluminum pipe 1 of 0.82mm is placed on pay off rack, the interior external mold size of design is respectively 6mm, 10mm, insulating barrier I 2 external diameters are designed to 1.25mm, by at head nitrogen injection, perfluoro alkoxy fluorine carbon Foamex being foamed, the injection rate of nitrogen is controlled to 0.34cm
3/ min, by calculating, the foam degrees of realizing nitrogen is 67% left and right, makes insulating barrier I 2;
B, the polytetrafluoroethylene extruding machine of extruding with pasty state is at the semi-sintering polytetrafluoroethylene of insulating barrier I 2 outer cladding one deck, polytetrafluoroethylene and auxiliary agent are carried out to mixing match by following weight, wherein polytetrafluoroethylene is 5010g, auxiliary agent is 1137.24 g, after mixing, on batch mixer, shake up 0.5h, at the aging 24h of the aging chambers of 30 DEG C, make auxiliary agent molecule fully and polytetrafluoroethylene mix, then batch mixing is added pre-molding equipment to make prefabricated rods, be respectively 1.45mm by interior external mold size, 2.45mm, 140 DEG C of the temperature curves in the design each district of sintering, 195 DEG C, 205 DEG C, 215 DEG C, 200 DEG C, 150 DEG C, piston speed is controlled at 20.1 mm/min, hauling speed is controlled at 6.2m/min, and final external diameter is 2.45mm, by technical recipe, polytetrafluoroethylene dielectric constant is controlled to 1.7 left and right, and design external diameter, to 2.45mm, is made insulating barrier II 3,
C, carry out turning band wrapped of 0.05 mm with horizontal active release band production line, design external diameter, to 2.65mm, is made insulating barrier III 4.
(2), with the at a high speed braiding of 16 ingots, each nail, for being 6 0.12mm Split Down silks, is controlled at pitch between 6.3 mm, makes screen 5;
(3) with tinning machine by the line entirety wicking having woven, complete the preparation of cable.
After having woven, outer conductor is handled as follows:
A, surface treatment
A.1, oil removing: alcohol is added in ultrasonic cleaning apparatus, complete oil removing process;
A.2, pickling: zinc chloride, ammonium chloride, hydrochloric acid and water are made to pickle in the ratio of 0.3:2:8:94, cable is carried out to pickling;
A.3, clean: running water is injected to clarifier and make distilled water afterflush cable surface;
A.4, adopt air compressor that cable is dried up.
B, help weldering
Select inorganic nature scaling powder, it is 5cm that cable is entered to the flux bath degree of depth, and two guide wheel spacings are controlled at 40 cm and carried out wire bonding agent processing.
C, oven dry
Adopt the sintering furnace of rectilinear 2 meters to dry, the bake out temperature of setting is 220 DEG C.
D, zinc-plated
The tin of Sn99.99, alloy tin, antioxidant are added in tin stove by 95:4:1, and heated constant temperature to 265 DEG C, passes through the tin scraping mould of 3.15 mm while coming out of the stove, heating collar of die coat, and the temperature of heating collar is also 265 DEG C.
E, alkali cleaning
The alkalies that is 10 by pH by cable, in and the acid residue of cable surface.
F, cleaning
Running water is injected to clarifier and makes the acid-base material of distilled water afterflush cable surface.
G, oven dry
By a joint tube furnace, under the condition of 120 DEG C, dry cable in temperature constant.
Embodiment 3
A preparation method for novel microwave cable, comprises the steps:
(1) preparation of insulating barrier:
A, barrel, screw rod, the Die Design of traditional PE foaming production line are become to the nickel-bass alloy material of high temperature, be 0.34 mm internal diameter, external diameter is that the aluminum pipe 1 of 0.85mm is placed on pay off rack, the interior external mold size of design is respectively 6mm, 10mm, insulating barrier I 2 external diameters are designed to 1.30mm, by at head nitrogen injection, perfluoro alkoxy fluorine carbon Foamex being foamed, the injection rate of nitrogen is controlled to 0.4cm
3/ min, by calculating, the foam degrees of realizing nitrogen is 70% left and right, makes insulating barrier I 2;
B, the polytetrafluoroethylene extruding machine of extruding with pasty state is at the semi-sintering polytetrafluoroethylene of insulating barrier I 2 outer cladding one deck, polytetrafluoroethylene and auxiliary agent are carried out to mixing match by following weight, wherein polytetrafluoroethylene is 5510g, auxiliary agent is 1030. g, after mixing, on batch mixer, shake up 0.6h, at the aging 25h of the aging chambers of 38 DEG C, make auxiliary agent molecule fully and polytetrafluoroethylene mix, then batch mixing is added pre-molding equipment to make prefabricated rods, be respectively 1.45mm by interior external mold size, 2.45mm, 140 DEG C of the temperature curves in the design each district of sintering, 195 DEG C, 205 DEG C, 215 DEG C, 200 DEG C, 150 DEG C, piston speed is controlled at 20.1 mm/min, hauling speed is controlled at 6.2m/min, and final external diameter is 2.50mm, by technical recipe, polytetrafluoroethylene dielectric constant is controlled to 1.8 left and right, and design external diameter, to 2.50mm, is made insulating barrier II 3,
C, carry out turning band wrapped of 0.05 mm with horizontal active release band production line, design external diameter, to 2.70mm, is made insulating barrier III 4.
(2), with the at a high speed braiding of 16 ingots, each nail, for being 6 0.12mm Split Down silks, is controlled at pitch between 6.4 mm, makes screen 5;
(3) with tinning machine by the line entirety wicking having woven, complete the preparation of cable.
After having woven, outer conductor is handled as follows:
A, surface treatment
A.1, oil removing: alcohol is added in ultrasonic cleaning apparatus, complete oil removing process;
A.2, pickling: zinc chloride, ammonium chloride, hydrochloric acid and water are made to pickle in the ratio of 0.3:2:8:94, cable is carried out to pickling;
A.3, clean: running water is injected to clarifier and make distilled water afterflush cable surface;
A.4, adopt air compressor that cable is dried up.
B, help weldering
Select inorganic nature scaling powder, it is 5cm that cable is entered to the flux bath degree of depth, and two guide wheel spacings are controlled at 40 cm and carried out wire bonding agent processing.
C, oven dry
Adopt the sintering furnace of rectilinear 2 meters to dry, the bake out temperature of setting is 220 DEG C.
D, zinc-plated
The tin of Sn99.99, alloy tin, antioxidant are added in tin stove by 95:4:1, and heated constant temperature to 265 DEG C, passes through the tin scraping mould of 3.15 mm while coming out of the stove, heating collar of die coat, and the temperature of heating collar is also 265 DEG C.
E, alkali cleaning
The alkalies that is 10 by pH by cable, in and the acid residue of cable surface.
F, cleaning
Running water is injected to clarifier and makes the acid-base material of distilled water afterflush cable surface.
G, oven dry
By a joint tube furnace, under the condition of 120 DEG C, dry cable in temperature constant.
Aluminium conductance is poor compared with copper, but by adopting aluminum pipe, use the loss of the air transmission balance inner wire loss in aluminum pipe, adopt Fluoroalkyloxy fluorine carbon Foamex to extrude the heat labile problem of aluminum pipe that solved in aluminum tube surfaces, half sintering polytetrafluoroethylfilm reduces the loss of cable insulation, add one deck Teflon turning band on half sintering polytetrafluoroethylfilm surface, isolate the reaction of auxiliary agent and tin stove in half sintering polytetrafluoroethylfilm, solved wicking technique, this method also adopts multiple tracks technique to solve zinc-plated problem.Meet the balance requirement of electric property and price, be more suitable for commercial communication field.
The above, be only preferred embodiment of the present invention, is not the restriction of the present invention being made to any other form, and according to any amendment or equivalent variations that technical spirit of the present invention is done, still belong to the present invention's scope required for protection.
Claims (5)
1. a novel microwave cable, it is characterized in that: comprise inner wire, composite insulation layer and screen, described composite insulation layer is made up of insulating barrier I, insulating barrier II and insulating barrier III, and described insulating barrier I, insulating barrier II and insulating barrier III are coated successively from inside to outside.
2. a kind of novel microwave cable according to claim 1, it is characterized in that: described inner wire is aluminum pipe, described insulating barrier I is perfluoro alkoxy fluorine carbon Foamex, described insulating barrier II is semi-sintering polyflon, described insulating barrier III is Teflon turning film, and described screen is that tin-plating round copper wire braiding forms.
3. a preparation method for novel microwave cable, is characterized in that: comprise the steps:
(1), the preparation of insulating barrier: aluminum pipe is placed on to pay off rack, by head nitrogen injection, perfluoro alkoxy fluorine carbon Foamex is foamed, make insulating barrier I; At the semi-sintering polytetrafluoroethylene of insulating barrier I outer cladding one deck, make insulating barrier II; Carry out the wrapped of turning band, make insulating barrier III;
(2), tin-plating round copper wire braiding is made to screen;
(3), by the line entirety wicking having woven, complete the preparation of cable.
4. the preparation method of a kind of novel microwave cable according to claim 3, is characterized in that: the injection rate of described nitrogen is at 0.3-.0.4cm
3/ min, the foam degrees of nitrogen is 65-70%.
5. the preparation method of a kind of novel microwave cable according to claim 3, it is characterized in that: described polytetrafluoroethylene and auxiliary agent are by carrying out mixing match, wherein the mass ratio between polytetrafluoroethylene and auxiliary agent is 4-6:1, on after mixing, shake up 0.3-0.6h, at the aging 20-25h of the aging chamber of 25-38 DEG C, make auxiliary agent molecule fully and polytetrafluoroethylene mix, then batch mixing is added pre-molding equipment to make prefabricated rods, described polytetrafluoroethylene dielectric constant is 1.5-1.8.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104240837A (en) * | 2014-09-02 | 2014-12-24 | 淮南新光神光纤线缆有限公司 | Data bus cable and manufacturing technology |
| CN105390206A (en) * | 2015-12-18 | 2016-03-09 | 上海南洋-藤仓电缆有限公司 | Super-flexible radio-frequency communication cable for high-speed elevator travelling cable and manufacturing method thereof |
| CN105913895A (en) * | 2016-06-15 | 2016-08-31 | 江苏通光电子线缆股份有限公司 | High-speed difference cable and preparation method thereof |
| CN110576229A (en) * | 2018-06-11 | 2019-12-17 | 西部超导材料科技股份有限公司 | Tin nodule eliminating device and use method thereof |
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| CN103943270B (en) | 2017-11-03 |
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