CN102592728B - Film-coated metal cable and manufacturing method thereof - Google Patents
Film-coated metal cable and manufacturing method thereof Download PDFInfo
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- CN102592728B CN102592728B CN 201210068314 CN201210068314A CN102592728B CN 102592728 B CN102592728 B CN 102592728B CN 201210068314 CN201210068314 CN 201210068314 CN 201210068314 A CN201210068314 A CN 201210068314A CN 102592728 B CN102592728 B CN 102592728B
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Abstract
The invention belongs to the field of wires and cables, also belongs to the field of processing of electronic components, and particularly relates to a film-coated metal cable and a manufacturing method thereof. The film-coated metal cable comprises a lead and an insulating layer wrapped outside the lead; the lead comprises a metal core wire and a protective film wrapped outside the metal core wire; and the protective film is filled in a gap between the metal core wire and the insulating layer. The manufacturing method comprises the following steps: (a) performing post-processing to the metalcore wire through a power wire feeding device; (b) cleaning the surface of the metal core wire; (c) putting the metal core wire in a container stored with chemical solvents, and keeping the temperature of the container constant; (d) adopting a baking device for solidification treatment; (e) allowing the leads on the traction wheel to move in one direction through a power traction device; and (f) putting the leads in a plastic shaft through a power take-up device. The metal core wire is protected from being dispersed under an external force; and the surface area of the original metal core wireis enlarged, the cross section of the lead tends to a proper circle, and the high frequency characteristic is further enhanced.
Description
Technical field
The present invention relates to electric wire field, electronics spare part manufacture field and electrical type association area, relate in particular to a kind of precoated metal cable and manufacture method thereof.
Background technology
In the electric wire application, the mounting means of electric wire mainly contains modes such as welding, riveting terminal and cold welding crimping, which kind of mode no matter, all need the insulation displacement with electric wire, the metal core wire of inside is exposed out, carry out the installation of back segment then and (in the wire harness processing technology, according to processing sequence, will cut out line and peeling as the front end processing procedure; To glue that soldering connects, spigot, riveting terminal and moulded, be called back-end process).Because most electric wires adopt single core or the stranded metal core wire of multicore, so when peeling off insulating barrier, because the effect of external force can make original complete stranded metal core wire the situation of scattering occur, be unfavorable for the installation of back segment like this.
In addition, along with the update of consumption electronic product, very high requirement has been proposed the electric wire of bearing transmitting effect.In the transmission frequency that improves constantly and bandwidth, require to keep stricter high frequency characteristics, wherein high frequency characteristics and following relating to parameters, for example: poor, the differential pair delay diference of delay and cross-talk etc. in decay, delay, the differential pair.And such high frequency characteristics all with electric wire in the surface area of metal core wire direct relation is arranged.Because exist the skin effect situation (namely to refer to alternating current (Alternating electric Current, during AC) by lead, because induction effect causes that CURRENT DISTRIBUTION is inhomogeneous on the conductor cross-section, the nearly conductive line surfaces current density that heals is more big), so skin effect can make the effective resistance of metal core wire increase.When frequency was more high, skin effect was more remarkable, and loss power also increases thereupon.When the very high electric current of frequency during by lead, can think that electric current only flows through in very thin one deck on conductive line surfaces.In order to guarantee the characteristic requirement under high frequency condition, best solution is to increase metal wire surface area (referring generally to cross section), and namely surface area is more big, and high frequency characteristics is more good.Like this, make and have to use more by some electric wires the metal core wire of high surface area reaches high-frequency effect, so that can't make the product miniaturization.
Summary of the invention
The objective of the invention is to solve the above problems, a kind of precoated metal cable and manufacture method thereof are provided.It has been avoided when electric wire is peeled off insulating barrier, because the external force effect, the situation that forces the metal core wire of inner multicore to occur scattering has realized electric wire simultaneously under the prerequisite that improves high frequency characteristics, and product can be tending towards miniaturization.In addition, the manufacture method of described precoated metal cable not only energy-saving effect is obvious, and has the strong characteristics of the feature of environmental protection.
For realizing above-mentioned purpose, the present invention adopts following technical proposals:
A kind of precoated metal cable comprises lead and is coated on the outer insulating barrier of lead that described lead comprises metal core wire and is coated on the diaphragm of metal core wire outside; Described diaphragm is filled in the gap between described metal core wire and the described insulating barrier.
Further, described metal core wire is more than two, also is filled with diaphragm in the gap between all described metal core wire.
Further, the material of described metal core wire be in copper, gun-metal, copper-iron alloy and the aluminium any one.
Further, the material of described diaphragm be in tin, gold and the silver any one.
A kind of manufacture method that adopts described precoated metal cable is characterized in that, comprises the steps:
(a) tractive effort of metal core wire by the power thread supply device that is wrapped in the draw drum drives, and is transferred in the ultrasonic cleaning equipment;
(b) by ultrasonic cleaning equipment the metal core wire surface before applying is done and clean processing, reject impurity;
(c) metal core wire is placed the container that fills chemical solvent, and keep vessel temp constant;
(d) metal core wire that will apply chemical solvent is carried out heat baking curing processing, makes surperficial free from admixture and the steam of the diaphragm that forms behind the coating chemical solvent residual;
(e) draw the drive force of getting device by power and draw and get wheel and rotate, make and draw the lead of getting on the wheel and at the uniform velocity advance towards a direction.
Further, in step (c), mould and tool are set in described container, are used for shape and thickness that control applies the diaphragm that forms behind the chemical solvent.
Further, in step (c), the temperature range of container is 30 ℃ to 200 ℃.
Further, in step (c), the temperature range of container further is 80 ℃ to 100 ℃.
Further, in step (e), draw the speed switch of getting device by regulating described power, be used for thickness and the quality of control diaphragm.
Further, in step (e) afterwards, further comprise step:, the lead that applied chemical solvent and formed is inserted in the plastic cement axle by the power take-up.
The invention has the advantages that:
(1) precoated metal cable of the present invention still can keep the conduction of metal core wire itself under the protection metal core wire is not subjected to prerequisite that external force scatters;
(2) diaphragm that forms by coated with tin ion chemistry solvent, increased the surface area (cross section) of original metal core wire, make conductive wire cross-section more be tending towards proper circle, improved high frequency characteristics, solve problems such as postponing poor, differential pair delay diference and cross-talk in decay, delay, the differential pair;
(3) compared with prior art, in the manufacture method process of precoated metal cable of the present invention, reduced the temperature range of heating, reduced the required electric power of heating, energy-saving effect is obvious; The employed tin of prior art is harmful in when volatilization to human body, and in the manufacture method of precoated metal cable of the present invention, non-volatile substantially after the described tin ion solvent heating, even volatilization also is water vapour, the present invention has the strong characteristics of the feature of environmental protection.
Description of drawings
Fig. 1 is the structural representation of precoated metal cable of the present invention (single core);
Fig. 2 is the structural representation of precoated metal cable of the present invention (multicore);
Fig. 3 is the schematic diagram of the manufacture method of precoated metal cable of the present invention;
Fig. 4 is the step schematic diagram of concrete implementation step of the manufacture method of precoated metal cable of the present invention;
Wherein, the mark among the figure is respectively:
1, lead; 11, metal core wire; 12, diaphragm; 2, insulating barrier;
M10, power thread supply device; M20, ultrasonic cleaning equipment; M30, container;
M40, heat baking device; M50, power draw gets device; M60, power take-up.
Embodiment
Elaborate below in conjunction with the embodiment of accompanying drawing to precoated metal cable of the present invention and manufacture method thereof.
Referring to Fig. 1 and Fig. 2, be respectively the structural representation of precoated metal cable of the present invention (single core) and the structural representation of precoated metal cable of the present invention (multicore).A kind of precoated metal cable comprises lead 1 and is coated on the outer insulating barrier 2 of lead that described lead 1 comprises metal core wire 11 and is coated on the diaphragm 12 of metal core wire 11 outsides.Diaphragm 12 is filled in the gap between metal core wire 11 and the insulating barrier 2.Wherein, the material of described metal core wire 11 be in copper, gun-metal, copper-iron alloy and the aluminium any one.If metal core wire 11 is single core, see shown in Figure 1.If metal core wire 11 is multicore, see shown in Figure 2.If metal core wire 11 is (multicore) more than two, also be filled with diaphragm 12 in the gap between all described metal core wire 11.The material of diaphragm 12 be in tin, gold and the silver any one.The material of diaphragm 12 is tin described in the specific embodiment of the invention (embodiment one and embodiment two).In other embodiments of the invention, the material of described diaphragm 12 is except can also selecting other materials for use for the tin, as gold or silver-colored.The preferred materials of diaphragm 12 is tin, because the cost of tin is low, and using value is arranged more.The thickness range of diaphragm 12 is 0.001mm to 0.1mm, and preferred values is 0.01mm.Like this, under protection metal core wire 11 is not subjected to prerequisite that external force scatters, still can keep the conduction of metal core wire 11 itself.Be that described diaphragm 12 does not influence metal core wire 11 electrical characteristics own.The lead 1 of described precoated metal cable makes the cross section of lead 1 be tending towards proper circle by the coating chemical solvent operation in the manufacture method and other operations (for example, mould and tool are set, the heat baking is solidified and at the uniform velocity draw and get etc.).
Two embodiment (embodiment one and embodiment two) are below described, being used for explanation precoated metal cable of the present invention is used for (for example solving the existing problem of prior art, after peeling off insulating barrier, because the effect of external force can make original complete stranded metal core wire the situation of scattering occur; In order to keep better high frequency characteristics but can't make the product miniaturization).
Embodiment one, present main flow notebook computer or LED(Light Emitting Diode, light-emitting diode) LCD TV is example, its inside all can built-in a kind of image coffret technology LVDS(Low Voltage Differential Signaling, the low-voltage differential signal transmits), and the wire harness that the task between the link interface is made up of superfine lead is finished.(herein, the requirement that wire harness refers to according to function bundles some cables, and cable is made up of lead).With trend in the market, above-mentioned two kinds of electronic products need more be tending towards lightening, so, the design of wire harness itself has been proposed the more requirement of miniaturization.In order to reach this type of designing requirement, wire harness itself must adopt thinner lead to assemble, but superfine lead is adding man-hour, and difficulty is a lot, and loose with the metal core wire in the lead is the processing difficulties point of maximum, because wire harness itself needs small designization.If it is loose to work as metal core wire, and in the welding of terminal place, serious problems such as short circuit burning machine can appear then.This product has overcome this type of defective just, and the diaphragm that forms at the metal core wire outer surface can prevent the problem that metal core wire is loose effectively, plays the effect of constraint.Like this, adopt precoated metal cable of the present invention can improve the quality of wire harness.
Embodiment two, with the consumer electronics high frequency image transmission of main flow in the market with line HDMI(High-Definition Multimedia Interface, HDMI (High Definition Multimedia Interface)) or the DisplayPort(display interface) be example, these two kinds of cables all use (described high frequency or high frequency characteristics under high frequency environment, refer in the signal transmission frequencies that surpasses more than the 100MHZ, specifically comprise delay, decay, it is poor to postpone in the differential pair, factors such as differential pair delay diference and cross-talk), after signal surpasses the 3.5GHz frequency, the transmission of signal is to finish on the surface of metal core wire, is not to finish in metal core wire inside.That is to say that the area on metal core wire surface is more big, effectively the distance of transmission is just more long, and the integrality of signal is also more strong.HDMI cable with No. 36, the American wire gage on the market is example, and its transmission range can only be 1.5M, can't finish the transmission of longer distance, significant limitation is arranged using.And be head it off, all be to adopt electronic amplifier that signal is amplified in the market, its transmission range can extend to 1.7M, and cost is very high.But the described precoated metal cable of the application of the invention can overcome this type of problem.Because after the surface of original metal core wire forms the diaphragm of layer of metal, make the surface area increase of metal core wire be about 42%.Like this, under No. 36, identical American wire gage, but precoated metal cable transmission range of the present invention is farther, and transmission range can reach more than the 2.0M.The advantage of precoated metal cable of the present invention is that not only diaphragm is metal material, and its cost is far below the transmission line that uses electronic amplifier.For example in the specific embodiment of the invention; using cheaply, the tin ion chemical solvent applies in the existing electronic product; namely form the diaphragm of metal at the outer surface of original metal core wire; so not only further improved the high frequency characteristics of electronic product itself; and with respect to the loss before improving, adopt the cost of precoated metal cable of the present invention obviously to possess great advantage.In addition, precoated metal cable of the present invention has better outward appearance, the advantage that is easy to process.
Next the step shown in Fig. 3 (schematic diagram of the manufacture method of precoated metal cable of the present invention) and Fig. 4 (the step schematic diagram of the concrete implementation step of the manufacture method of precoated metal cable of the present invention) is elaborated.
Referring to Fig. 3 and Fig. 4, a kind of manufacture method of described precoated metal cable comprises the steps:
S401: the tractive effort of metal core wire by the power thread supply device that is wrapped in the draw drum drives, and is transferred in the ultrasonic cleaning equipment.
In the specific embodiment of the invention, with more than 20 groups, the metal core wire that is wrapped in the draw drum is carried out rear end manufacturing processing by power thread supply device M10, and is that ensuing operation (cleaning, coating chemical solvent, heat as metal core wire are dried by the fire curing etc.) is ready.In giving line process, (servo controller is a kind of device for the control motor, and herein, described servo controller is to be arranged at power to draw and get among the device M50 by servo controller, power is drawn get device M50 initiatively to go between the passive line of giving of power thread supply device M10.) control power thread supply device M10 and power draws and gets device M50, make power thread supply device M10 to draw the wire speed of getting device M50 for linear velocity and power consistent, making the tractive effort that is carried on the metal core wire is constant force.Like this, not only avoid lax, disconnected core or the stretcher strain of metal core wire to greatest extent, for high-quality cable manufacturing is laid a good foundation, also can improve ultrasonic cleaning equipment M20 simultaneously, fill the container M30 of chemical solvent and the service efficiency that heat is dried by the fire device M40.Employed metal core wire is 50 AWG.(AWG(American Wire Gauge, American wire gage) is a kind of standard of distinguishing diameter of wire, and Brown ﹠amp is otherwise known as; Numeral before the Sharpe wire gauge, AWG is more big, and then core line diameter is more little, and AWG can consult the brown and sharpe wire gauge standard with the conversion of millimeter).The U.S. No. 50 wire gauges (50 AWG) refers to that sectional area is 0.000486～0.000497 square millimeter metal core wire.
S402: by ultrasonic cleaning equipment the metal core wire surface before applying is done to clean processing, reject impurity.
In step S402; do by the metal core wire of ultrasonic cleaning equipment M20 surface and to clean processing; reject impurity; assurance does not exert an influence to the chemical solvent that will apply; make the diaphragm that forms on the metal core wire surface that better quality be arranged, also guaranteed the electrical characteristic of original metal core wire simultaneously.
S403: metal core wire is placed the container that fills chemical solvent, and keep vessel temp constant.
In step S403, mould and tool are set in container M30, be used for shape and thickness that control applies the diaphragm that forms behind the chemical solvent.Manufacturer can control the thickness of diaphragm according to client's demand.In the specific embodiment of the invention, the thickness range of diaphragm is 0.001mm to 0.1mm, and preferred values is 0.01mm.By the use of mould and tool, when metal core wire and chemical solvent (for example, the tin ion chemical solvent) generation chemical reaction, trend towards proper circle at the formed diaphragm of the outer surface of metal core wire.Under the protection metal core wire is not subjected to prerequisite that external force scatters, still can keep the conduction of metal core wire itself like this.
In step S403, heating container M30 makes the temperature range of container M30 remain on 30 ℃ to 200 ℃, and further temperature range control is at 80 ℃ to 100 ℃.And present prior art, the temperature range of general hot tinning is 260 ℃ to 380 ℃, decides on the composition of tin.Therefore, adopt manufacture method of the present invention, not only reduced the temperature range of heating, and reduced the required electric power of heating, energy-saving effect is obvious.
S404: the metal core wire that will apply chemical solvent is carried out heat baking curing processing, makes surperficial free from admixture and the steam of the diaphragm that forms behind the coating chemical solvent residual.
Wherein, described chemical solvent is the tin ion solvent, and the tin ion solvent is not for there being the nontoxic transparent chemicals of corrosion.Manufacture method of the present invention has the strong characteristics of the feature of environmental protection, because the employed tin of prior art can be harmful when volatilization, and non-volatile substantially after the tin ion solvent of the present invention heating, even volatilization also is water vapour.In this step, handle the quality that has also guaranteed the formed diaphragm of chemical reaction by the curing of heat baking device M40.
S405: draw the drive force of getting device by power and draw and get wheel and rotate, make and draw the lead of getting on the wheel and at the uniform velocity advance towards a direction.
Wherein, power draws to be got device M50 and refers to adopt the servo controller of adjustable speed and motor as actuating force, driving is drawn and is got wheel and rotate, and makes to draw can enter ultrasonic cleaning equipment M20 evenly before the lead of getting on the wheel, fill among the container M30 and heat baking device M40 of chemical solvent.Owing to adopt servo controller, make lead in the process of advancing, remain a constant speed with steadily, guaranteed that like this lead can be by uniform treatment in ultrasonic cleaning equipment M20, the container M30 that fills chemical solvent and heat baking device M40.Draw the speed switch of getting device M50 by regulating power, with thickness and the quality of control diaphragm.In the specific embodiment of the invention; power draws the CD-ROM drive motor of getting among the device M50 changes 2000 commentaries on classics of scooter per minute; add up to 200 meters of the about per minutes of linear velocity, like this, make lead (described lead comprises metal core wire and the diaphragm) cross section of making more be tending towards proper circle by said method.
S406: by the power take-up, the lead that applied chemical solvent and formed is inserted in the plastic cement axle.
By power take-up M60, insert the lead that applied chemical solvent and formed in the plastic cement axle or in the packing of other client's appointments.Adopt plastic cement as packing in the specific embodiment of the invention, described plastic cement plays good insulation performance as the insulating barrier of cable.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. a precoated metal cable comprises lead and is coated on the outer insulating barrier of lead, and it is characterized in that, described lead comprises metal core wire and is coated on the diaphragm of metal core wire outside; Described metal core wire is more than two, and described diaphragm coats all described metal core wire, and is filled in the gap between all described metal core wire, and simultaneously described diaphragm also is filled in the gap between described metal core wire and the described insulating barrier; Described diaphragm is by all metal core wire are placed the container that fills chemical solvent, solidify through the heat baking and handle the back and formation, described chemical solvent be in tin ion solvent, gold ion solvent and the silver ion solvent any one.
2. precoated metal cable as claimed in claim 1 is characterized in that, the material of described metal core wire be in copper, gun-metal, copper-iron alloy and the aluminium any one.
3. precoated metal cable as claimed in claim 1 is characterized in that, the material of described diaphragm be in tin, gold and the silver any one.
4. the manufacture method of the described precoated metal cable of claim 1 is characterized in that, comprises the steps:
(a) tractive effort of metal core wire by the power thread supply device that is wrapped in the draw drum drives, and is transferred in the ultrasonic cleaning equipment;
(b) by ultrasonic cleaning equipment the metal core wire surface before applying is done and clean processing, reject impurity;
(c) metal core wire is placed the container that fills chemical solvent, and keeps vessel temp constant, wherein chemical solvent be in tin ion solvent, gold ion solvent and the silver ion solvent any one, the temperature range of container is 30 ℃ to 200 ℃;
(d) metal core wire that will apply chemical solvent is carried out heat baking curing processing, makes surperficial free from admixture and the steam of the diaphragm that forms behind the coating chemical solvent residual;
(e) draw the drive force of getting device by power and draw and get wheel and rotate, make and draw the lead of getting on the wheel and at the uniform velocity advance towards a direction.
5. as the manufacture method of precoated metal cable as described in the claim 4, it is characterized in that, in step (c), mould and tool are set in described container, be used for shape and the thickness of the diaphragm that forms behind the control coating chemical solvent.
6. as the manufacture method of precoated metal cable as described in the claim 4, it is characterized in that in step (c), the temperature range of container further is 80 ℃ to 100 ℃.
7. as the manufacture method of precoated metal cable as described in the claim 4, it is characterized in that, in step (e), draw the speed switch of getting device by regulating described power, be used for thickness and the quality of control diaphragm.
8. as the manufacture method of precoated metal cable as described in the claim 4, it is characterized in that, in step (e) afterwards, further comprise step:
By the power take-up, the lead that applied chemical solvent and formed is inserted in the plastic cement axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201210068314 CN102592728B (en) | 2012-03-15 | 2012-03-15 | Film-coated metal cable and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210068314 CN102592728B (en) | 2012-03-15 | 2012-03-15 | Film-coated metal cable and manufacturing method thereof |
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| CN102592728A CN102592728A (en) | 2012-07-18 |
| CN102592728B true CN102592728B (en) | 2013-09-04 |
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| CN 201210068314 Expired - Fee Related CN102592728B (en) | 2012-03-15 | 2012-03-15 | Film-coated metal cable and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103549976A (en) * | 2013-11-11 | 2014-02-05 | 深圳市开立科技有限公司 | Ultrasonic probe, medical endoscope and processing method for ultrasonic probe and medical endoscope |
| CN106057360A (en) * | 2016-07-27 | 2016-10-26 | 芜湖顺成电子有限公司 | Method for preparing low-smoke halogen-free flame-retardant electric wires |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200962351Y (en) * | 2006-04-01 | 2007-10-17 | 张良 | Signal cable |
| CN201167010Y (en) * | 2008-03-11 | 2008-12-17 | 卢沛女 | Novel enamel-insulated-aluminium coil |
| CN102280179A (en) * | 2011-05-25 | 2011-12-14 | 无锡市明珠电缆有限公司 | Flame-retardant cabtyre cable for mobile device in coal mine and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020117325A1 (en) * | 2001-02-23 | 2002-08-29 | Mennone Michael P. | Flame resistant cable structure |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200962351Y (en) * | 2006-04-01 | 2007-10-17 | 张良 | Signal cable |
| CN201167010Y (en) * | 2008-03-11 | 2008-12-17 | 卢沛女 | Novel enamel-insulated-aluminium coil |
| CN102280179A (en) * | 2011-05-25 | 2011-12-14 | 无锡市明珠电缆有限公司 | Flame-retardant cabtyre cable for mobile device in coal mine and preparation method thereof |
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