CN1689747A - Welding head with high efficiency and long life - Google Patents
Welding head with high efficiency and long life Download PDFInfo
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- CN1689747A CN1689747A CN 200410020498 CN200410020498A CN1689747A CN 1689747 A CN1689747 A CN 1689747A CN 200410020498 CN200410020498 CN 200410020498 CN 200410020498 A CN200410020498 A CN 200410020498A CN 1689747 A CN1689747 A CN 1689747A
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Abstract
The high efficiency and long life soldering head has one cylindrical heating core including front heating head and back heating column, and one protecting iron sheath. The present invention has direct contact between the heating core and the protecting iron sheath, no heat conducting gap, high heat conducting efficiency, increased protecting sheath thickness and long service life. The protecting iron sheath may be produced through punching or other machining mode without need electroplating.
Description
Technical field:
The present invention relates to a kind of solder horn, especially have long solder horn of good heat conductivility and life-span.
Background technology:
Soldering iron tip generally is divided into two kinds of external-heat and internal heat types according to heating system, and the characteristics that the internal heat type flatiron is safe because of it and heat conduction is good are extensively adopted by suitability for industrialized production.Its structure is the internal bore at copper material as shown in Figure 1, and heat generating core is placed in the hole of being bored.Because copper can be dissolved in the scolding tin rapidly under high-temperature condition, and easy deformation, so all be coated with protective layer in its outside.And iron is difficult for being dissolved by scolding tin when brazing temperature and is not yielding, is also soaked into by scolding tin easily simultaneously, and therefore, ferrous materials such as Chang Yitie or ferroalloy are made protective layer.Copper has played the effect of heat conduction, and the iron layer has played the effect of protection, and the quality of iron layer and thickness will directly determine the service life of solder horn.The most structure of existing heat generating core is the form of exothermic material with the wire for being matrix with the pottery.Generally be to be made by following several technologies: resistance silk material such as tungsten filament, molybdenum filament constant resistance silk material are wound in definite shape, are placed in the mould, ceramic powder (being generally alumina powder) is added in the mould, the sintering of heating again forms.Perhaps the resistance silk material is adopted typography, be compressed on the unsintered ceramic substrate, be rolled into column type again, the sintering of heating forms.Outer surface all covers ceramic layer to play the effect of insulation.Traditional processing mode has following defective: 1. the working portion of heat generating core and solder horn distance must stay coniform hole than speed 2. copper materials that far influence temperature-compensating when boring endoporus, and the manufacture craft of heat generating core determines that its front end is flat cylindric or flat, a space that hinders heat conduction must be arranged between heat generating core front end and the copper material, heat-conducting effect is affected; 3. be subjected to the influence of described reason owing to the heat carrier heat-conducting effect, its protective layer must approach, otherwise is difficult to guarantee the real employed temperature of flatiron, and its iron layer thickness is general only in 0.3 millimeter, has directly influenced the service life of product; 4. Bao protective layer generally needs to realize with plating mode; and the plating mode manual operations is more; the production cost height; electroplating technology is difficult to guarantee to have uniform iron layer simultaneously; especially very thick because of the point discharge principle at place, tip iron layer; need a large amount of platings back machining work to guarantee the even of iron layer, processed complex.
Summary of the invention:
The technical problem that the existing in prior technology heat-conducting effect is poor in order to solve in the present invention, service life is short provides a kind of long-lived solder horn of high efficiency of good heat conduction effect.
Technical solution of the present invention is: a kind of high efficiency long-life solder horn; heat generating core 1 is arranged; described heat generating core 1 is a cylindricality; its front end is heating cylinder 3 for heating working end 2, back; the cross-sectional area of heating working end 2 is less than the cross-sectional area of heating cylinder 3, and the outside of heat generating core 1 is socketed with irony protective sleeve 4.
The heating cylinder 3 of described heating working end 2 and its back can be the integrative-structure at no mechanical interface, and it makes material is ceramic heating material.
Described heating working end 2 all is to be wound with heating-wire 5 on porcelain basal body with the heating cylinder 3 of its back, and insulating barrier 6 is arranged outside the heating-wire 5, and the heating cylinder 3 of heating working end 2 and its back can be the integrative-structure at no mechanical interface.Ceramic matrix is provided with groove 7, and heating-wire 5 places in the groove 7.
Described heating end 2 is that size is by the back extremely preceding platform shape that diminishes gradually.
Described heating end 2 can be cylindricality.
Between described irony protective sleeve 4 and the heat generating core 1 copper transition zone 8 is arranged.
The present invention compares with prior art; because the front end of designed heating element structure is the working end; overcome the problem in existing in prior technology heat conduction space, the heat generating core outside is socket irony protective sleeve directly, the more important thing is to make heat generating core more near working portion.Heat generating core work end directly contacts with iron layer (or alloy-layer), to improve heat transfer efficiency widely, even like this iron layer thickness is increased to 0.5 millimeter, heat-conducting effect is still fine, and the life-span of solder horn also will but increase substantially owing to the increase of iron layer thickness.Also need not simultaneously to electroplate, can produce the chapeau de fer that thickness increases, avoided with the thin all disadvantages that protective layer brought of electro-plating method production by punching press or other machining mode.
Description of drawings:
Fig. 1 is a prior art constructions schematic diagram of the present invention.
Fig. 2 is the structural representation of the embodiment of the invention 1.
Fig. 3 is the structural representation of the embodiment of the invention 2 heat generating cores.
Fig. 4 is the structural representation of the embodiment of the invention 2.
Fig. 5 is the structural representation of the embodiment of the invention 3 heat generating cores.
Fig. 6 is the structural representation of the utility model embodiment 4
The specific embodiment:
Embodiment 1:
As shown in Figure 2, heat generating core 1 is arranged, heat generating core 1 is cylinder or square column type, and its front end is heating cylinder 3 for heating working end 2, back.The outside of heat generating core 1 connects irony protective sleeve 4 with resistant to elevated temperatures bonding agent (as sodium metasilicate---waterglass); the heating cylinder 3 of described heating working end 2 and its back can be the integrative-structure at no mechanical interface; the size of heating end 2 parts is diminished to preceding gradually by the back; promptly generate heat working end 2 cross-sectional area less than the heating cylinder 3 cross-sectional area; available multiple ceramic heating material is made required heat generating core, as molybdenum disilicide or other ceramic material exothermic material as carborundum, chromic acid lanthanum etc.This exothermic material electric property can meet the demands fully, and these materials all can at the temperature section 300-500 of the required heat supply of solder horn degree, be set up a kind of stable temperature equilibrium in the voltage range of 5-24V.Also can adopt the multi-layer ceramics technology, as the preparation method of United States Patent (USP) 6396028 described multi-layer ceramics heat generating cores.The irony protective sleeve can adopt various material, as pure iron, pure nickel, iron-nickel alloy, stainless steel etc.By the technology of metal sheet band punching press or pull and stretch, also can adopt the technology of cold pier that wire rod or other shapes are shaped to required shape.
Embodiment 2:
Shown in Fig. 3,4: heat generating core 1 is arranged, and heat generating core 1 is cylindrical, and its front end is heating cylinder 3 for heating working end 2, back.The outside of heat generating core 1 is with resistant to elevated temperatures bonding agent (as sodium metasilicate---waterglass) socket irony protective sleeve 4, and described heating working end 2 also can be that split is connected with the integrative-structure that the heating cylinder 3 of its back can be no mechanical interface.Heating end 2 parts be size by the back to the preceding truncated cone-shaped that diminishes gradually, the cross-sectional area of the working end 2 that promptly generates heat is less than the cross-sectional area of heating cylinder 3.Making heat generating core 1 can sinter earlier has solder horn working portion similar shape or tapered ceramic matrix, and matrix can adopt the aluminium oxide material,, heating-wire 6 parts are wrapped on the matrix, conductor part can be selected tungsten filament, molybdenum filament or other refractory metals.In order to twine accurate homogeneous, can on ceramic matrix, carve sulculus 7 earlier.Lead directly is wound in the sulculus 7, guarantees that like this heat generating core will have identical electrical parameter, has also reduced the thickness of insulating barrier simultaneously, has improved the capacity of heat transmission.At last, be coated with insulating layer coating 6, insulating barrier 6 can adopt sintered alumina, or multiple mode such as low temperature depositing aluminium oxide.
Embodiment 3:
As shown in Figure 5: other is as embodiment 1,2, and just the heating working end 2 of heat generating core 1 front end is cylindrical, and its diameter is less than the heating cylinder 3 of heat generating core 1 back, and the cross-sectional area of the working end 2 that promptly generates heat is less than the cross-sectional area of heating cylinder 3.
Embodiment 4:
As shown in Figure 6: embodiment 4 is the more special solder horns of some shapes, as very sharp solder horn.Can the heat generating core forward part be made more blunt circular platform type relatively as embodiment 1,2,3,4, or the column type of minor diameter.Adopt the mode of machined or cold pier or hot pier to make taper copper transition zone, iron or other alloy protecting layer 4 parts can adopt plating or punching press to combine with the copper layer segment again.Such frame mode because of heat generating core than traditional approach more near working portion, and the copper layer plays the effect of good transition conduction, the capacity of heat transmission still improves a lot.Even under the situation that the iron layer is thickened, still have good heat-conducting effect, can increase substantially service life.Copper layer and iron layer also can adopt the mode with copper-iron alloy, and the existing so good capacity of heat transmission has the long life-span again.This alloy can adopt the mode of powder metallurgy to make, and United States Patent (USP) 5579533 has a kind of with the production method of copper-iron alloy as Heat Conduction Material.
Claims (8)
1. high efficiency long-life solder horn; heat generating core (1) is arranged; it is characterized in that: described heat generating core (1) is cylindricality; its front end is heating cylinder (3) for heating working end (2), back; the cross-sectional area of heating working end (2) is less than the cross-sectional area of heating cylinder (3), and the outside of heat generating core (1) is socketed with irony protective sleeve (4).
2. high efficiency long-life solder horn according to claim 1 is characterized in that: described heating working end (2) is the integrative-structure at no mechanical interface with the heating cylinder (3) of its back, and it is made material and is made as ceramic heating material.
3. high efficiency long-life solder horn according to claim 1 is characterized in that: described heating working end (2) all is to be wound with heating-wire (5) on ceramic matrix with the heating cylinder (3) of its back, and insulating barrier (6) is arranged outside the heating-wire (5).
4. high efficiency long-life solder horn according to claim 3 is characterized in that: described heating working end (2) is the integrative-structure at no mechanical interface with the heating cylinder (3) of its back.
5. according to claim 1 or 2 or 3 or 4 described high efficiency long-life solder horns, it is characterized in that: described heating end (2) is that size is by the back extremely preceding platform shape that diminishes gradually.
6. according to claim 1 or 2 or 3 or 4 described high efficiency long-life solder horns, it is characterized in that: described heating end (2) is cylindricality.
7. according to claim 1 or 2 or 3 or 4 described high efficiency long-life solder horns, it is characterized in that: between described irony protective sleeve (4) and the heat generating core (1) copper transition zone (8) is arranged.
8. according to claim 3 or 4 described high efficiency long-life solder horns, it is characterized in that: described ceramic matrix is provided with groove (7), and heating-wire (5) places in the groove (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410020498 CN1689747A (en) | 2004-04-29 | 2004-04-29 | Welding head with high efficiency and long life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410020498 CN1689747A (en) | 2004-04-29 | 2004-04-29 | Welding head with high efficiency and long life |
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| Publication Number | Publication Date |
|---|---|
| CN1689747A true CN1689747A (en) | 2005-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200410020498 Pending CN1689747A (en) | 2004-04-29 | 2004-04-29 | Welding head with high efficiency and long life |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069358A (en) * | 2010-12-31 | 2011-05-25 | 东莞市卡萨帝电子科技有限公司 | Manufacturing method of intelligent soldering bit |
| CN101678491B (en) * | 2007-02-19 | 2012-06-06 | 库柏工具股份有限公司 | Soldering tip having a surface with a grid structure |
| CN104152739A (en) * | 2014-08-07 | 2014-11-19 | 深圳市格润电子有限公司 | Copper and iron alloy for producing soldering bit and production technology thereof |
-
2004
- 2004-04-29 CN CN 200410020498 patent/CN1689747A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101678491B (en) * | 2007-02-19 | 2012-06-06 | 库柏工具股份有限公司 | Soldering tip having a surface with a grid structure |
| CN102069358A (en) * | 2010-12-31 | 2011-05-25 | 东莞市卡萨帝电子科技有限公司 | Manufacturing method of intelligent soldering bit |
| CN104152739A (en) * | 2014-08-07 | 2014-11-19 | 深圳市格润电子有限公司 | Copper and iron alloy for producing soldering bit and production technology thereof |
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