CN1038238A - Engineering-plastics heating-wire burying welding method - Google Patents
Engineering-plastics heating-wire burying welding method Download PDFInfo
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- CN1038238A CN1038238A CN 88103365 CN88103365A CN1038238A CN 1038238 A CN1038238 A CN 1038238A CN 88103365 CN88103365 CN 88103365 CN 88103365 A CN88103365 A CN 88103365A CN 1038238 A CN1038238 A CN 1038238A
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Abstract
The present invention relates to the engineering plastics welding.This method comprises heating conductor is placed between the thermoplastic engineering plastic to be welded; Energising makes heating conductor heating, between weldment and around plastics or molten and weldment applied steps such as suitable pressure and pressurize certain hour.The heating conductor that this method adopted is the conductor of conducting metal exposed or covered with engineering plastics or conductive metal alloy formation.The operation of this method is very simple, implements the equipment of this method and instrument is also very simple and adaptability is very wide.Compare with other welding methods, less energy intensive, efficient is higher, especially in large tracts of land, the welding of overlength weldment, more apparent superiority.
Description
The present invention relates to the engineering plastics welding, more particularly, relate to engineering-plastics heating-wire burying welding method and used heating-wire thereof.
As everyone knows, engineering plastics can adopt several different methods to weld.At present, the common welding method that adopts in home and abroad has hot gas welding, hot plate welding, high-frequency dielectric weldering, supersonic welding and friction welding (FW) or the like.In general, the equipment that hot gas welding adopted is simple, owing to finish welding by manual operation, so operators'skills level height is bigger to the welding quality influence, generally, its face of weld is more coarse, and the uniformity of weld strength is poor.For approved product, generally adopt hot plate welding.The equipment that this method adopted is not only complicated, and hot plate element price height, life-span are short, have only a few countries can produce, and the weld seam appearance is easily by plucking in addition.As for the high-frequency dielectric weldering, only adapt to the welding of minority thin materials such as polyvinyl chloride, the material of welding more than 2 millimeters just had any problem.Supersonic welding can not be carried out the disposable welding of large tracts of land, and its equipment complexity, costs an arm and a leg, and also has powerful welding equipment seldom.For friction welding (FW), only be applicable to a kind of welding of rotatable cylindrical shape material, application surface is narrower.So, make a general survey of above-mentioned these methods, also do not have at present a kind of be suitable for all thermoplastic engineering plastics welding and equipment simple, welding quality is good, and is simple to operate, the welding method of wide adaptability.
The object of the present invention is to provide that a kind of equipment is simple, welding quality good, the heating-wire burying welding method and the used heating-wire of this method of the engineering plastics of simple to operate and wide adaptability.
A kind of engineering-plastics heating conductor burying welding method of the present invention may further comprise the steps:
(1) a kind of heating conductor is placed between the thermoplastic engineering plastic to be welded;
(2) energising makes heating conductor heating, between said weldment and plastics on every side become molten; And
(3) weldment is applied suitable pressure and pressurize certain hour.
Make in the step of heating conductor heating in said energising, can be by implementing at direct incoming transport in heating conductor two ends or dc source.Under certain conditions, also can make the heating conductor heating with the mode of induction.
The heating conductor that is adopted in the method for the present invention can be made of various conducting metals or conductive metal alloy.It can be bare conductor, also can be for being coated with and of the same race by welder's engineering plastics or approaching engineering plastics of the same race.The geometry of itself can strengthen the shape of weld strengths for circle, flat, square, thread-shaped or other.For rounded heating conductor, its diameter can be 10 microns-5 millimeters, often uses usually, promptly is preferably 0.3 millimeter-2 millimeters.For the heating conductor of other shapes, above-mentioned data are meant the Breadth Maximum of conductor itself.
From the above mentioned as seen, the operation of method of the present invention is very simple, implement the equipment of this method and instrument is also very simple and adaptability is very wide, be suitable for the welding of the weldment of various thermoplastic engineering plastic, various difformity, various different-thickness, length and various different welding requirements.Because heating conductor is a flush type, so the butt welded seam of heating conductor own also plays humidification.In addition, compare with other welding methods, less energy intensive, efficient is higher, particularly in large tracts of land, the weldment welding aspect of overlength more demonstrates its superiority, in addition inherence and outward appearance welding quality also be other welding methods can't be obtained.The heating conductor that this method adopted can be made specially, also can select to adopt present widely used electric wire.Flexibility is very big.
Below, will reach embodiment in conjunction with the accompanying drawings the present invention will be done narration in more detail.Advantage of the present invention and effect also can be better understood thus.
Fig. 1 is for implementing the schematic diagram of method of the present invention.
Embodiment
With reference to Fig. 1, be coated with coating layer 2 heating-wire 3 of outside is placed between engineering plastics weldment 1 to be welded and 4.The AC power through step-down transformer 7 step-downs is inserted at the two ends of lead 3.Adjust electric current and voltages by adjustable transformer 8, ammeter 5 and voltmeter 6 indicated values are reached make near the plastics for the treatment of weldment 1 and 4 lead 3 heatings and fusion clad 2 and the heating-wire 3.Simultaneously, treating to apply suitable pressure on the weldment, making and treat weldment 1,4 pressings that heating-wire 3 also is pressed together on wherein.By switch 9 deenergizations,, promptly finished welding of the present invention through the certain hour pressurize.
Above-mentioned engineering plastics to be welded 1,4 can be thermoplastic engineering plastics such as polyethylene, polypropylene, ABS, nylon, polyvinyl chloride, polycarbonate, polystyrene.The shape for the treatment of weldment can be tabular, strip, bar-shaped, cylindric, block and various shaped piece.
Above-mentioned heating-wire 3 can be made of various conducting metals or conductive metal alloy, for example copper and copper alloy, iron and ferroalloy, aluminium and aluminium alloy or the like.Can be single, many stranded the forming of bare conductor also can be made into netted by single bare conductor partially.Lead 3 is coated with and by welder's engineering plastics clad 2 of the same race, also can be coated with and the approaching clad 2 of the same race of welded part, and for example welded part is a polycarbonate, and clad can be ABS and polycarbonate synthetic.The geometry of lead 3 itself can strengthen the shape of weld strength for circle, flat, square, thread-shaped or other.The diameter of lead 3 can be 10 microns-5 millimeters, often uses usually, promptly is preferably 0.3 millimeter-2 millimeters.For the conductor of other shapes, then instruct the Breadth Maximum of body itself.Electric current by heating-wire 3 is decided on the conductor resistance size, can select between 1A-1000A usually.Lead 3 can be tiled into linearity, circle shape or other geometric figures according to the requirement of weldment being provided with of weld; Can be single, many arranged side by side or other layouts.
Above-mentioned two kinds of energising mode of heatings, can carry out selectivity at the engineering plastics of heterogeneity and requirement and add thermal weld, and can implement the disposable rapid welding of whole large tracts of land, and particularly implement the welding assembly unit of large-scale plastics article and can once finish, technology is simplified greatly.Use actinobolia heating can be welded indirectly to certain part in the closed container, is not also welded shape, the size of thing, the restriction of angle simultaneously, and carries out arbitrarily to welding.
Heating-wire 3 diameters own can be 1: 1 to 1: 6 with the ratio that has added the external diameter behind the clad 2, can be 1: 1.5 to 1: 4 usually.Imbedding lead can be single coated wire, and also can be that several coated wires are parallel imbeds or make whole several parallel coated wires, and its profile can be circular, square, rectangle or polygonal.Clad material also can add additives such as various dyestuffs, auxiliary agent according to factors such as solderability, intensity, color, degree of aging, costs except above-mentioned requirements.
With next instantiation is that to adopt method of the present invention be that 3 millimeters polypropylene closed container welds to wall thickness.1.5 meters of weld seam girths, there is mouth of connecting trough the commissure, and the heating-wire of use is to be coated with polyacrylic single round copper conductor, and its diameter is 0.8 millimeter, and the outer diameter of cladding is 2.2 millimeters.Above-mentioned lead is flat on treats between the weldment that pass to 50 amperes of direct currents, after 30 seconds, welding is promptly finished in pressurize 1 minute.
Detect through outward appearance, weld seam is clean and tidy, attractive in appearance.Through the welding container through 1 kg/cm pressure preliminary test, the ne-leakage phenomenon, weld seam is firm.
Claims (10)
1, a kind of engineering-plastics heating-wire burying welding method is characterized in that said method may further comprise the steps:
(1) a kind of heating conductor is placed between the thermoplastic engineering plastic to be welded;
(2) energising makes heating conductor heating, between said weldment and plastics on every side become molten; And
(3) weldment is applied suitable pressure and pressurize certain hour.
2, welding according to claim 1 is characterized in that said heating conductor is coated with and of the same race by welder's engineering plastics or approaching engineering plastics of the same race.
3, welding according to claim 1 is characterized in that said heating conductor is a bare conductor.
4, according to claim 1,2 or 3 described weldings, it is characterized in that at direct incoming transport in heating conductor two ends or dc source.
5, welding according to claim 1 is characterized in that making the heating conductor heating with the mode of induction.
6, the heating conductor of using in a kind of welding as claimed in claim 1 is characterized in that said heating conductor can be made of various conducting metals or conductive metal alloy.
7, heating conductor according to claim 6 is characterized in that said heating conductor is coated with and is talked in sleep by the virtuous of a welder time water caltrop rice weevil that to chant こ time water caltrop of value tomb rare
8, heating conductor according to claim 6 is characterized in that said heating conductor is a bare conductor.
9, according to claim 6,7 or 8 described heating conductors, the geometry that it is characterized in that said heating conductor itself can strengthen the shape of weld strength for circle, flat, square, thread-shaped or other.
10, according to claim 6,7 or 8 described heating conductors, it is characterized in that the diameter of said heating conductor or width are 10 microns-5 millimeters, be preferably 0.3 millimeter-2 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88103365 CN1038238A (en) | 1988-05-30 | 1988-05-30 | Engineering-plastics heating-wire burying welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88103365 CN1038238A (en) | 1988-05-30 | 1988-05-30 | Engineering-plastics heating-wire burying welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1038238A true CN1038238A (en) | 1989-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88103365 Pending CN1038238A (en) | 1988-05-30 | 1988-05-30 | Engineering-plastics heating-wire burying welding method |
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| CN (1) | CN1038238A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102873717A (en) * | 2012-09-24 | 2013-01-16 | 资源县多利士木工机械厂 | Lumber sapwood processor |
| CN104864357A (en) * | 2015-05-29 | 2015-08-26 | 邓树壮 | PP plastic lampshade and manufacturing technology thereof |
| CN109397399A (en) * | 2018-11-06 | 2019-03-01 | 长兴欧普利斯家具有限公司 | A kind of wooden unit cutting post-processing separator |
-
1988
- 1988-05-30 CN CN 88103365 patent/CN1038238A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102873717A (en) * | 2012-09-24 | 2013-01-16 | 资源县多利士木工机械厂 | Lumber sapwood processor |
| CN104864357A (en) * | 2015-05-29 | 2015-08-26 | 邓树壮 | PP plastic lampshade and manufacturing technology thereof |
| CN109397399A (en) * | 2018-11-06 | 2019-03-01 | 长兴欧普利斯家具有限公司 | A kind of wooden unit cutting post-processing separator |
| CN109397399B (en) * | 2018-11-06 | 2021-09-14 | 吉荣家具有限公司 | Wood block cutting aftertreatment separator |
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