CN102601478B - Method for brazing stainless steel tube and internal copper wire for acupunctur - Google Patents
Method for brazing stainless steel tube and internal copper wire for acupunctur Download PDFInfo
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- CN102601478B CN102601478B CN201210080178.2A CN201210080178A CN102601478B CN 102601478 B CN102601478 B CN 102601478B CN 201210080178 A CN201210080178 A CN 201210080178A CN 102601478 B CN102601478 B CN 102601478B
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Abstract
The invention provides a method for brazing a stainless steel tube and an internal copper wire for acupuncture. The technological method includes fusing the tip end of the copper wire with an peeled tip to form a small ball by the aid of energy storage spot welding equipment; fully dipping the tip end of the copper wire with brazing flux, pulling the tip end of the copper wire into the stainless steel tube, pushing the copper wire outwards when the ball reaches a clamped position, and wetting both the copper wire and the inner wall of the tube; and inserting a hot needle into the crucible holding the liquid brazing flux in argon protection atmosphere, keeping the hot needle in the crucible for a few seconds, then pulling the copper wire into the stainless steel tube, taking out the hot needle and excellently connecting the stainless steel tube with the copper wire. The diameter of the small ball is required to be larger than the inner diameter of the stainless steel tube. An employed brazing device includes: a high-frequency induction heating device, an argon filling tank, an argon filling opening, an argon outlet, a glass baffle plate and a crucible. The high-frequency induction heating device is connected with a high-frequency induction coil. The argon filling opening is disposed on the side wall of the argon filling tank, and the high-frequency induction coil is wound on the outer side of the crucible. By the aid of the method, the stainless steel tube is excellently connected with the copper wire, and sealing performance is guaranteed. The device is low in cost and high in efficiency.
Description
Technical field
The present invention relates to welding technology field, is the method for welding of a kind of acupuncture stainless steel tube and inner copper wire specifically.
Background technology
" acupuncture " is being collectively referred to as of the skill of handling needles and moxibustion therapy.The skill of handling needles is to use metal pin, thrusts the certain acupuncture point of human body, and using method, to adjust qi and blood; Moxibustion therapy is to be twisted into moxa stick or moxa cone with moxa to light with the burn skin surface at acupuncture point of temperature, reaches the object of warming meridian, the regulation of qi and blood.
Ancient Chinese medicine doctor, in the time of the cold card of acupuncture and moxibustion therapy, asthenic symptoms, tries hard to make pin suitably to heat, and improves clinical efficacy.As using oral cavity to contain " warm pin " method of pin, Gu claims the acupuncture with heated needle of " bright thorn ", and on Acupuncture Clinical, also applies " warming needle moxibustion " etc. more widely so far.But these conventional methods, are subject to scientific and technical condition restriction, respectively have its limitation.
The appearance perfection of hot pin instrument has solved the problems referred to above, can not only realize by heat being needled into acupuncture point the function of " pin ", more can utilize electric current to make needle point heating, allows heat directly send to acupuncture point.
Hot pin instrument is made up of instrument and hot pin two parts, is according to the Novel acupuncture therapeutic equipments of the theoretical development of Traditional Chinese Medicine acupuncture, in conjunction with modern electronic technology, hot acupuncture moxibustion is combined together.Hot pin therapy is according to traditional acupuncture theory, and hot pin utilizes electric current to make needle body heating, by regulating electric current to change hot pin temperature, even can be constant at arbitrary temp, thereby makes treatment obtain optimum curative effect.Hot pin instrument can be realized the complex treatment effects such as acupuncture, moxa-moxibustion, warming needle moxibustion, fiery pin.
Hot pin principle is, single-chip microcomputer is temperature required according to the hot pin of panel input, produce the voltage that converts out by measuring formula, change analog signal into through digital-to-analogue conversion route data signal, this signal is as the control signal of program controlled constant current source circuit, control and produce the constant-current supply corresponding with the temperature of demarcating through calculating, make the hot pin of special internal heat type by marked temperature heating constant temperature, reach therapeutic purposes.
Hot pin agent structure is stainless steel tube and the inner Φ 0.09mm constantan wire of an external diameter 0.4mm internal diameter 0.2mm, at hot needle tip, requirement is removed copper wire insulating barrier and is realized and being closely connected with stainless steel tube, forms cone angle tip through machining, becomes pyrotoxin owing to forming resistance herein.
Traditional handicraft method is that extruding stainless steel tube is realized itself and being connected of copper wire, and not only sealing is poor, and cannot carry out quality of connection inspection, and yield rate is extremely low.If gap appears in hot needle tip, cause that blood disease infects thereby can cause patient blood to enter.Therefore, seek a kind of method, under the prerequisite that ensures copper wire and stainless steel tube mechanical performance, realize tight be connected very necessary.
Summary of the invention
Based on above problem, a kind of novel braze welding technique of using copper wire first to dip in brazing flux solder to draw in again stainless steel tube is proposed.Through improving, solved again difficult grasp the problem of drawing in size.
The present invention adopts following technology:
A kind of acupuncture is as follows with the stainless steel tube of hot pin and the method for welding of copper wire:
(1), remove copper wire anterior with afterbody insulating barrier after, electric spot welding equipment the two poles of the earth connect respectively copper electrode plate, copper wire tail end; Make copper wire front end in argon shield atmosphere simultaneously; Open after electric spot welding equipment, make copper wire front end approach copper electrode plate, electric arc, by the fusing of copper wire front end, solidifies rear formation ball, require its diameter to be greater than stainless steel tube internal diameter, cannot enter stainless steel tube thereby can be stuck in the ball that the stainless steel mouth of pipe forms in the time drawing in;
(2), in argon filling case (2), be filled with argon gas and form protection atmosphere, open interior the solder of high-frequency induction heating apparatus (1) heating crucible (3) (4) extremely higher than 50 DEG C of solder fusing points,
(3), dip in upper brazing flux at copper wire tip (5-3), wet length is 4～5mm, copper wire is drawn in stainless steel tube (5-1), and ball (5-4) blocks pusher and goes out copper wire, completes the brazing flux wetting and spreading of copper wire and stainless steel inside pipe wall;
(4), steel pipe (5-1) 2～3mm is exposed at guarantee copper wire tip (5-3), copper wire end (5-3) inserted in the crucible (3) in argon filling case (2) down, submergence steel pipe (5-1) 3-4mm, and keep 3-5s;
(5), hold copper wire afterbody (5-2) copper wire is drawn in to stainless steel tube (5-1), copper wire front end ball (5-4) takes out hot pin after blocking the mouth of pipe, has completed the brazing of stainless steel tube and copper wire;
This method adopt brazing equipment, comprise HF induction heating apparatus (1), argon filling case (2), argon filling mouth (2-1), go out argon mouth (2-2), glass baffle plate (2-3), crucible (3), HF induction heating apparatus is connected with radio-frequency induction coil (1-1), radio-frequency induction coil (1-1) stretches in argon filling case from argon filling case (2) sidewall, for heating crucible (3), argon filling case sidewall has argon filling mouth (2-1), argon filling case overhead gage is clear glass baffle plate (2-3), on glass baffle plate, output argon mouth (2-2), radio-frequency induction coil (1-1) is centered around crucible (3) outside, go out argon mouth (2-2) directly over crucible (3).
The present invention also has following feature:
1, the interior solder of described crucible (3) (4) is BAg72Cu.
2, described brazing flux is FB101 or FB102,
3, described copper wire is the constantan wire of Φ 0.09mm.
4, described stainless steel tube is external diameter 0.4mm and internal diameter 0.2mm.
The present invention has following remarkable advantage:
(1) different from traditional extrusion process, this method can realize stainless steel tube and be connected with the high-quality of copper wire, ensures sealing, has effectively prevented hemopathic infection.
(2) realize the wetting and spreading of copper wire and stainless steel inside pipe wall brazing flux by " one draw one push away ", effectively removed oxide-film, ensured welding quality.
(3) design of the most advanced and sophisticated ball of copper wire, ensures that copper wire draws in stainless steel tube and reach optimum position.
(4) heat input is low, and deflection is little, has ensured the mechanical performance of stainless steel tube and copper wire.
(5) equipment is simple, cost is low, efficiency is high, is convenient to promote in industrial production.
Brief description of the drawings
The hot needle construction schematic diagram of Fig. 1;
Fig. 2 processes the most advanced and sophisticated ball principle schematic of copper wire;
The hot pin soldering of Fig. 3 new technology welder schematic diagram;
The hot pin postwelding of Fig. 4 structural representation.
In figure, 1, HF induction heating apparatus, 1-1, induction coil, 2, argon filling case, 2-1, argon filling mouth, 2-2, go out argon mouth, 2-3, glass baffle plate, 3, crucible, 4, solder, 5-1, stainless steel tube, 5-2, constantan wire afterbody, 5-3, copper wire tip, 5-4, copper coin pearl.
Detailed description of the invention
Brazing device of the present invention, as shown in Figure 3, this device is mainly made up of HF induction heating apparatus (1), argon filling case (2), crucible (3) three parts.
Concrete assembling scheme is as follows: HF induction heating apparatus (1) stretches into radio-frequency induction coil (1-1) in argon filling case from argon filling case (2) sidewall, for heating crucible (3), argon filling case sidewall is opened argon filling mouth (2-1) so that argon gas is filled with, argon filling case overhead gage is clear glass baffle plate (2-3) to observe welding process and control hot pin and insert the solder degree of depth, on glass baffle plate, output argon mouth (2-2) so that the stretching into of the pass-out of argon gas and hot pin, assembling ensures that crucible (3) is in radio-frequency induction coil (1-1), go out argon mouth (2-2) directly over crucible (3).
Next by reference to the accompanying drawings this technology is elaborated, concrete implementation step is as follows:
One, remove copper wire anterior with afterbody insulating barrier after first process copper wire nose circle pearl, as Fig. 2, connect respectively copper electrode plate, copper wire tail end at electric spot welding equipment the two poles of the earth.In defeated argon pipe, passing into argon gas makes copper wire front end in argon shield atmosphere.Open electric spot welding equipment, make copper wire front end approach battery lead plate, produce electric arc, the fusing of copper wire front end, solidifies rear formation ball.Inspection ensures that ball cannot enter in stainless steel tube, has completed the processing of the most advanced and sophisticated ball of copper wire.
Two, assembling is as Fig. 3 argon filling case; in crucible (3), be BAg72Cu solder (779 DEG C of fusing points); argon gas continues to be filled with until form argon shield atmosphere in whole argon filling case (2), opens heating generator (1) solder in crucible (4) is heated to 850～900 DEG C.
Three, dip in upper FB101 or FB102 brazing flux at copper wire tip (5-3), wet length is 4～5mm, copper wire is drawn in stainless steel tube (5-1), and ball (5-4) blocks pusher and goes out copper wire, completes the brazing flux wetting and spreading of copper wire and stainless steel inside pipe wall.
Four, steel pipe (5-1) 2～3mm is exposed at guarantee copper wire tip (5-3), copper wire front end is inserted in the crucible (3) in argon filling case (2) down, require submergence steel pipe (5-1) 3～4mm, and keep 3～5s, heat up to realize whole welding position.
Five, hold copper wire afterbody (5-2) copper wire is drawn in to stainless steel tube (5-1), copper wire front end ball (5-4) takes out hot pin after blocking the mouth of pipe, has completed the brazing of stainless steel tube and copper wire.
Six, hot pin is processed into circular cone wedge angle in Fig. 1 after removing surface, can assembles finished product.
Claims (5)
1. the stainless steel tube of hot pin and a method for welding for copper wire for acupuncture, is characterized in that, method is as follows:
(1) processing method of copper wire front end ball (5-4), is first: remove after copper wire front portion and afterbody insulating barrier, electric spot welding equipment the two poles of the earth connect respectively copper electrode plate, copper wire tail end; Make copper wire front end in argon shield atmosphere simultaneously; Open after electric spot welding equipment, make copper wire tip approach copper electrode plate, electric arc, by the fusing of copper wire front end, solidifies rear formation ball, requires its diameter to be greater than stainless steel tube internal diameter;
(2), in argon filling case (2), be filled with argon gas and form protection atmosphere, open interior the solder of high-frequency induction heating apparatus (1) heating crucible (3) (4) extremely higher than 50 DEG C of solder fusing points,
(3), dip in upper brazing flux at copper wire front portion (5-3), wet length is 4～5mm, copper wire is drawn in stainless steel tube (5-1), and ball (5-4) blocks pusher and goes out copper wire, completes the brazing flux wetting and spreading of copper wire and stainless steel inside pipe wall;
(4), ensure that copper wire front end (5-3) exposes steel pipe (5-1) 2～3mm, copper wire end (5-3) inserted in the crucible (3) in argon filling case (2) down, submergence steel pipe (5-1) 3-4mm, and keep 3-5s;
(5), hold copper wire afterbody (5-2) copper wire is drawn in to stainless steel tube (5-1), copper wire front end ball (5-4) takes out hot pin after blocking the mouth of pipe, has completed the brazing of stainless steel tube and copper wire;
The brazing equipment adopting, comprise HF induction heating apparatus (1), argon filling case (2), argon filling mouth (2-1), go out argon mouth (2-2), glass baffle plate (2-3) and crucible (3), HF induction heating apparatus is connected with radio-frequency induction coil (1-1), radio-frequency induction coil (1-1) stretches in argon filling case from argon filling case (2) sidewall, argon filling case sidewall has argon filling mouth (2-1), argon filling case overhead gage is clear glass baffle plate (2-3), on glass baffle plate, output argon mouth (2-2), radio-frequency induction coil (1-1) is centered around crucible (3) outside, go out argon mouth (2-2) directly over crucible (3).
2. the stainless steel tube of hot pin and the method for welding of copper wire for a kind of acupuncture as claimed in claim 1, is characterized in that: the described interior solder of crucible (3) (4) is BAg72Cu.
3. the stainless steel tube of hot pin and the method for welding of copper wire for a kind of acupuncture as claimed in claim 1, is characterized in that: the FB101 that described brazing flux is or FB102,
4. the stainless steel tube of hot pin and the method for welding of copper wire for a kind of acupuncture as claimed in claim 1, is characterized in that: described copper wire is the constantan wire of Φ 0.09mm.
5. the stainless steel tube of hot pin and the method for welding of copper wire for a kind of acupuncture as claimed in claim 1, is characterized in that: described stainless steel tube is external diameter 0.4mm and internal diameter 0.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210080178.2A CN102601478B (en) | 2012-03-15 | 2012-03-15 | Method for brazing stainless steel tube and internal copper wire for acupunctur |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210080178.2A CN102601478B (en) | 2012-03-15 | 2012-03-15 | Method for brazing stainless steel tube and internal copper wire for acupunctur |
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| CN102601478A CN102601478A (en) | 2012-07-25 |
| CN102601478B true CN102601478B (en) | 2014-10-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103801913A (en) * | 2014-02-25 | 2014-05-21 | 哈尔滨工业大学 | Hot needle with heat concentrated at needle point part, and manufacturing method of hot needle |
| CN103978289B (en) * | 2014-05-05 | 2016-08-17 | 哈尔滨工业大学 | A kind of fusion welding method connecting hot pin rustless steel needle tubing and internal resistance silk |
| CN108031937B (en) * | 2017-12-06 | 2019-11-08 | 昆山万洲特种焊接有限公司 | Medical hot needle low pressure assist type brazing device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5176307A (en) * | 1991-02-22 | 1993-01-05 | Praxair Technology, Inc. | Wave soldering in a protective atmosphere enclosure over a solder pot |
| CN1173795C (en) * | 2001-09-05 | 2004-11-03 | 清华同方股份有限公司 | Thermocouple preparation and its apparatus |
| CN201098768Y (en) * | 2007-09-12 | 2008-08-13 | 朱峰 | Jet-flow tin soldering furnace |
| CN100469913C (en) * | 2007-09-12 | 2009-03-18 | 哈尔滨工业大学 | Liquid state hydrogen-replacing thinning solidifying tissue method in Ti-6Al-4V alloy induction shell smelting process |
| DE102008047113B4 (en) * | 2008-09-15 | 2019-03-21 | Rehm Thermal Systems Gmbh | Apparatus and method for lifting immersion soldering |
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