CN108031937A - Medical hot pin low pressure assist type brazing device and method - Google Patents
Medical hot pin low pressure assist type brazing device and method Download PDFInfo
- Publication number
- CN108031937A CN108031937A CN201711273098.8A CN201711273098A CN108031937A CN 108031937 A CN108031937 A CN 108031937A CN 201711273098 A CN201711273098 A CN 201711273098A CN 108031937 A CN108031937 A CN 108031937A
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- China
- Prior art keywords
- stainless steel
- needle tubing
- hot pin
- gas
- crucible
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/008—Soldering within a furnace
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/19—Soldering, e.g. brazing, or unsoldering taking account of the properties of the materials to be soldered
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
- B23K1/206—Cleaning
Abstract
The problem of medical hot pin low pressure assist type brazing device of the present invention enables to the connection of constantan wire and stainless steel needle tubing abundant, and shaping is good, nothing non-soldering area, while the length of coupling part is adjustable, belongs to soldering field.Negative pressure device is tightly connected with argon filling case and is located at the top of argon filling case, and the inside of argon filling case is full of argon gas, and crucible is located at the inside of argon filling case, and heating unit is arranged on crucible, and solder is placed with crucible.Remove constantan wire one end insulation coat of paint and impurity；Constantan wire is penetrated in the stainless steel needle tubing after removing impurity, the front end of constantan wire and stainless steel needle tubing is infiltrated with paste brazing flux；It is filled with argon gas in argon filling case, solder in heating crucible；By in the rear end insertion negative pressure device of hot pin to be welded, to 3~4mm of molten solder submergence stainless steel needle tubing in front end insertion crucible, the gas extracted out in stainless steel needle tubing forms low pressure so that the molten solder in crucible flows up filling stainless steel needle tubing, keeps 3~5s；Hot pin is taken out from argon filling case, is cooled to room temperature.
Description
Technical field
The present invention relates to a kind of brazing device and method for welding, and in particular to a kind of medical hot pin low pressure assist type soldering dress
Put and method.
Background technology
Acupuncture is the general name of the skill of handling needles and moxibustion therapy.The skill of handling needles refers to needle set gas is often referred to acupuncture needle under the guidance of theory of traditional Chinese medical science
Gas is pierced into patient's body according to certain angle, comes with twisted with putting forward the manipulation of acupuncture such as slotting to human body privileged site into assassination
Swash so as to achieve the purpose that to treat disease, and moxibustion therapy is to be burnt, smoked on the certain acupuncture point of body surface with prefabricated moxibustion wick or moxibustion grass
Press, disease is prevented and treated using the stimulation of heat.
Ancient Chinese medicine doctor tries hard to enable pin suitably to heat, to improve clinical efficacy in acupuncture and moxibustion therapy sympotoms caused by cold factors, void.Such as fortune
With " warm pin " method of oral cavity containing pin, Gu claims the acupuncture with heated needle of " bright thorn ", and so far on Acupuncture Clinical also using relatively more extensive " temperature
Acupuncture " etc..But these conventional methods, are limited by scientific and technical condition, respectively there is its limitation.Hot pin is to summarize the warm pin of tradition
Moxibustion and a kind of Novel acupuncture method innovated on the basis of fiery acupuncture advantage, during hot acupuncture, are needled into acupuncture point by heat and realize " pin "
Function, more can utilize electric current needle point is generated heat, allow heat to be directly sent to acupuncture point to treat disease, the hot moxibustion of acupuncture is melted in hot acupuncture
It is integrated, is the combination of mechanical stimulus and thermostimulation.Hot pin therapy is theoretical according to traditional acupuncture, makes hot pin using electric current
Needle body generates heat, by adjusting the hot pin temperature of electric current change or making constant temperature, so that treatment obtains optimum curative effect.
Hot pin agent structure is an outside diameter 0.3mm, the stainless steel tube of internal diameter 0.2mm and the diameter 0.09mm constantans of inside
Silk, in hot needle tip, it is desirable to remove copper wire insulating layer and be closely connected with stainless steel tube realization, cone angle is formed through over mechanical processing
Tip, becomes pyrotoxin since resistance value is higher herein.
Traditional handicraft realizes the mechanical connection of hot pin stainless steel needle tubing and constantan wire using extrusion, and yield rate is low and connector
Poor sealing, easily causes the blood disease of patient to infect, there are security risk if tip portion is there are gap.Compared to extruding
Method, welding are to realize the effective means of two kinds of material metallurgical bindings, though using fusion welding method can connect hot pin stainless steel needle tubing with
Constantan wire, but technique is more complicated；The connection of hot pin stainless steel needle tubing and constantan wire, obtained hot pin are realized using method for welding
At tip, the connection of copper and stainless steel is insufficient, cob webbing, is also easy to produce the non-soldering area in many places.
The content of the invention
During the purpose of the present invention is to solve connecting hot pin stainless steel needle tubing with constantan wire using common method for welding, obtain
At the hot needle tip arrived, the connection of constantan wire and stainless steel needle tubing is insufficient, cob webbing, produces asking for the non-soldering area in many places
Topic, while to realize at hot needle tip, the length of constantan wire and stainless pin pipe jointing part point is adjustable.
In order to solve the above technical problems, a kind of medical hot pin low pressure assist type brazing device of the present invention by negative pressure device, fill
Argon case, crucible and heating unit composition, enable to the connection of constantan wire and stainless steel needle tubing abundant, and shaping is good, and nothing is not welded
The problem of closing area, while the length of constantan wire and stainless pin pipe jointing part point is adjustable.
The negative pressure device is tightly connected with the argon filling case, and the negative pressure device is located at the top of the argon filling case, institute
The inside for stating argon filling case is full of argon gas, and the crucible is located at the inside of the argon filling case and is located at the lower section of the negative pressure device,
The heating unit is arranged on the crucible, and the heating unit is used to heat to the crucible, one end of hot pin to be welded
In the negative pressure device, the other end of hot pin to be welded is located in the crucible, and solder is placed with the crucible.
As the further optimization of the present invention, the negative pressure device described in the medical hot pin low pressure assist type brazing device of the present invention
By lower pressure extraction device, sebific duct and rubber plug, the lower pressure extraction device is located at the inside of the sebific duct, and the rubber plug is tightly connected
In the inside of the sebific duct and positioned at the lower section of the lower pressure extraction device, the rubber plug is provided with connection hot pin to be welded
Hole.
As the further optimization of the present invention, the lower pressure extraction described in the medical hot pin low pressure assist type brazing device of the present invention
Device piston.
As the further optimization of the present invention, rubber plug described in the medical hot pin low pressure assist type brazing device of the present invention it is upper
End interference fit is connected to inside sebific duct, and the lower end interference fit of the rubber plug is connected on the argon filling case.
As the further optimization of the present invention, the heat to be welded described in the medical hot pin low pressure assist type brazing device of the present invention
Pin is tightly connected with the rubber plug.
As the further optimization of the present invention, on the argon filling case described in the medical hot pin low pressure assist type brazing device of the present invention
The argon filling mouth for being filled with argon gas is provided with, the heating unit is radio-frequency induction coil.
The method that medical hot pin low pressure assist type soldering is carried out using above-mentioned medical hot pin low pressure assist type brazing device,
It is characterized in that, the medical hot pin low pressure assist type method for welding includes：
Step 1: the surface insulation coat of paint of constantan wire one end is removed, and the constantan wire and stainless steel that insulation coat of paint will be removed
Needle tubing is placed in the container for filling acetone, is cleaned by ultrasonic using ultrasonic cleaning apparatus and is removed stainless steel needle tubing and constantan wire surface
Impurity；
Step 2: the constantan wire after removal impurity in step 1 is penetrated in the stainless steel needle tubing after removing impurity, constantan
Constantan wire is stuck in the rear end of stainless steel needle tubing to rolled over by the top of silk, infiltrates constantan wire with paste brazing flux QJ101 or QJ102
Front end and stainless steel needle tubing front end, obtain hot pin to be welded；
Step 3: be filled with argon gas in argon filling case, protection atmosphere is formed, opens heating unit, solder is extremely in heating crucible
Higher than 50~100 DEG C of solder fusing point；
Step 4: by the rear end insertion negative pressure device of branched hot pin to be welded, argon filling is inserted into the front end of hot pin to be welded
In crucible in case, molten solder submerges stainless steel 3~4mm of needle tubing in crucible, using in negative pressure device extraction stainless steel needle tubing
Gas, form lower pressure in stainless steel needle tubing, it is stainless that pressure differential make it that the molten solder in crucible flows up filling
The inner wall of draw point pipe, molten solder wetting constantan wire and stainless steel needle tubing, keeps 3~5s, to realize the liter of whole welding position
Temperature, the height of molten solder filling is adjusted by varying the pressure in stainless steel needle tubing, and then controls constantan wire and stainless steel
The length of needle tubing coupling part；
Step 5: taking out hot pin from argon filling case, it is cooled to room temperature to complete the soldering connection of stainless steel needle tubing and constantan wire.
As the further optimization of the present invention, the solder described in the medical hot pin low pressure assist type method for welding of the present invention is
SCuP-6Sn, 800 DEG C of fusing point, opens heating unit by the solder heat in crucible to 850~900 DEG C.
As the further optimization of the present invention, the constantan wire described in the medical hot pin low pressure assist type method for welding of the present invention is
The constantan wire of Φ 0.05-0.1mm.
As the further optimization of the present invention, the stainless pin described in the medical hot pin low pressure assist type method for welding of the present invention
The outside diameter of pipe is 0.3-0.5mm, internal diameter 0.2-0.4mm.
The medical hot pin low pressure assist type brazing device of the present invention and method have the beneficial effect that：
1st, using the gas in negative pressure device extraction stainless steel needle tubing, lower pressure is formed in stainless steel needle tubing, because depositing
Poor in external and internal pressure, the solder filling stainless steel needle tubing in crucible, soaks constantan wire and stainless pin inside pipe wall.Solve using general
When logical method for welding connects hot pin stainless steel needle tubing with constantan wire, at obtained hot needle tip, constantan wire and stainless steel needle tubing
The problem of connecting insufficient, cob webbing, producing the non-soldering area in many places, can cause the connection of constantan wire and stainless steel needle tubing to fill
Point, shaping is good, the problem of without non-soldering area.
2nd, can by varying the pressure differential between the gas pressure in stainless steel needle tubing and the gas pressure inside argon filling case
To realize that the length of constantan wire and stainless pin pipe jointing part point is adjustable, that is, molten solder flows up filling stainless pin
The packed height of pipe is adjustable.
3rd, technique is simple and cost is low, is easy to convert to batch production.
Brief description of the drawings
The present invention will be further described in detail with specific implementation method below in conjunction with the accompanying drawings.
Fig. 1 is the structure diagram of the medical hot pin low pressure assist type brazing device of the present invention.
Fig. 2 is the structure diagram of hot pin to be welded.
Fig. 3 is the structure diagram of negative pressure device in Fig. 1.
Fig. 4 is the structure diagram of hot pin after processing circular cone wedge angle.
In figure：Negative pressure device 1；Lower pressure extraction device 1-1；Sebific duct 1-2；Rubber plug 1-3；Argon filling case 2；Crucible 3；Heating unit
4；Argon filling mouth 5；Hot pin 6 to be welded；Stainless steel needle tubing 6-1；Constantan wire 6-2.
Embodiment
Illustrate present embodiment, the medical hot pin low pressure assist type brazing device of the present invention and side with reference to Fig. 1,2,3,4
Method, when can solve to connect hot pin stainless steel needle tubing with constantan wire using common method for welding, at obtained hot needle tip, constantan
Silk, cob webbing insufficient with the connection of stainless steel needle tubing, the problem of producing the non-soldering area in many places, can cause constantan wire and not
The problem of connection for draw point pipe of becoming rusty is abundant, and shaping is good, nothing non-soldering area.It can additionally realize constantan wire and stainless steel needle tubing
The length of coupling part is adjustable, that is, molten solder flow up filling stainless steel needle tubing packed height it is adjustable.
The medical hot pin low pressure assist type brazing device is by 1 gas of negative pressure device gas, 2 gas of argon filling case gas, crucible
3 gas of gas and 4 gas of heating unit gas composition, 1 gas of negative pressure device gas and 2 gases of the argon filling case gas are close
Envelope connection, the low-voltage space of 1 gas interior of negative pressure device gas are not connected with 2 gas of argon filling case gas.The negative pressure device gas
1 gas of body is located at the top of 2 gas of argon filling case gas, is flowed up in order to the solder of melting under the action of pressure differential
Fill stainless steel needle tubing.The inside of 2 gas of argon filling case gas is full of argon gas, protection atmosphere is formed, for protecting melting
Solder is not oxidized.3 gas of crucible gas is located at the inside of 2 gas of argon filling case gas and is located at the negative pressure device
The lower section of 1 gas of gas, 4 gas of heating unit gas are arranged on 3 gas of crucible gas, the heating unit gas
4 gas of body is used to heat to 3 gas of crucible gas, solder is placed with 3 gas of crucible gas, so that crucible
Solder in 3 gas of gas is heated to molten condition.Hot 6 gas of pin gas to be welded is by stainless steel needle tubing 6-1 and constantan wire
6-2 is formed, and constantan wire 6-2 is inserted in stainless steel needle tubing 6-1.One end of hot 6 gas of pin gas to be welded is located at negative pressure dress
Put in 1 gas of gas, the other end of hot 6 gas of pin gas to be welded is located in 3 gas of crucible gas.Hot pin gas to be welded
6 gas of body is located at one end in 3 gas of crucible gas to need the one end welded.Hot 6 gas of pin gas to be welded is located at negative pressure
An end pressure in 1 gas of device gas is low, and hot 6 gas of pin gas to be welded is located at the end pressure in 3 gas of crucible gas
Height, filling stainless steel needle tubing is flowed up in the solder melted under the action of pressure differential in 3 gas of crucible gas.
1 gas of negative pressure device gas is by lower pressure extraction device gas 1-1 gases, sebific duct gas 1-2 gases and glue
Gas 1-3 gases are filled in, the lower pressure extraction device gas 1-1 gases are located at the inside of the sebific duct gas 1-2 gases, the glue
Plug gas 1-3 air seals are connected to the inside of the sebific duct gas 1-2 gases and are located at the lower pressure extraction device gas 1-1
The lower section of gas, the rubber plug gas 1-3 gases are provided with the hole for connecting hot 6 gas of pin gas to be welded.The rubber plug gas
The upper end interference fit of body 1-3 gases is connected to sebific duct gas 1-2 gas interiors, the lower end mistake of the rubber plug gas 1-3 gases
Mating connection be full of on 2 gas of argon filling case gas.Rubber plug gas 1-3 gases are by sebific duct gas 1-2 gases and argon filling case gas
2 gas of body links together while so that sebific duct gas 1-2 gases, rubber plug gas 1-3 gases and lower pressure extraction device gas 1-1
The inner space and the inner space of 2 gas of argon filling case gas for space, that is, negative pressure device that gas is formed are isolated, easy to be formed
High-low pressure cavity.Hot 6 gas of pin gas to be welded is connected with the rubber plug gas 1-3 air seals, prevents argon filling case
Gases at high pressure in 2 gas of gas are entered in 1 gas of negative pressure device gas by the hole on rubber plug gas 1-3 gases.Described is low
It is piston to press air extractor gas 1-1 gases, when drawing piston to the upper end of sebific duct gas 1-2 gases, 1 gas of negative pressure device gas
Interior air pressure will reduce.
5 gas of argon filling gas for being filled with argon gas, 5 gas of argon filling gas are provided with 2 gas of argon filling case gas
Body is used to be filled with argon gas into 2 gas of argon filling case gas.4 gas of heating unit gas is radio-frequency induction coil, for
3 gas of crucible gas heats so that the brazing filler metal melts in 3 gas of crucible gas.
Medical hot pin low pressure assist type pricker is carried out using the medical hot pin low pressure assist type brazing device described in claim
The method of weldering, it is characterised in that the medical hot pin low pressure assist type method for welding includes：
Step 1: the surface insulation coat of paint of constantan wire one end is removed, and the constantan wire and stainless steel that insulation coat of paint will be removed
Needle tubing is placed in the container for filling acetone, is cleaned by ultrasonic using ultrasonic cleaning apparatus and is removed stainless steel needle tubing and constantan wire surface
Impurity；It can be polished with fine sandpaper and remove the surface insulation coat of paint of constantan wire one end, and the constantan wire that insulation coat of paint will be removed
It is placed in stainless steel needle tubing in the container for filling acetone, 5min is cleaned by ultrasonic using ultrasonic cleaning apparatus at room temperature, is removed
Stainless steel needle tubing and the impurity on constantan wire surface, particularly greasy dirt.
Step 2: the constantan wire after removal impurity in step 1 is penetrated in the stainless steel needle tubing after removing impurity, constantan
Constantan wire is stuck in the rear end of stainless steel needle tubing to rolled over by the top of silk, infiltrates constantan wire with paste brazing flux QJ101 or QJ102
Front end and stainless steel needle tubing front end, obtain hot pin to be welded；Paste brazing flux QJ101 or QJ102 infiltrate the front end of constantan wire
And the front end of stainless steel needle tubing is used to guide the solder of melting to flow up.
Step 3: be filled with argon gas in argon filling case, protection atmosphere is formed, opens heating unit, solder is extremely in heating crucible
Higher than 50~100 DEG C of solder fusing point；
Step 4: by the rear end insertion negative pressure device of branched hot pin to be welded, argon filling is inserted into the front end of hot pin to be welded
In crucible in case, molten solder submerges stainless steel 3~4mm of needle tubing in crucible, using in negative pressure device extraction stainless steel needle tubing
Gas, form lower pressure in stainless steel needle tubing, it is stainless that pressure differential make it that the molten solder in crucible flows up filling
The inner wall of draw point pipe, molten solder wetting constantan wire and stainless steel needle tubing, keeps 3~5s, the time is very few to cause soldering not filled
Point, overlong time can cause solder to be overflowed from upper end, to realize the heating of whole welding position, by varying in stainless steel needle tubing
Pressure adjust the height of molten solder filling, and then control the length of constantan wire and stainless pin pipe jointing part point；Crucible
Interior molten solder submerges stainless steel 3~4mm of needle tubing, this is determined according to the structure design of device and the size design of pin.
Step 5: taking out hot pin from argon filling case, it is cooled to room temperature to complete the soldering connection of stainless steel needle tubing and constantan wire.
Hot pin is processed into the circular cone wedge angle shown in Fig. 4 after removing surface, you can assembling finished product.
The solder is SCuP-6Sn, 800 DEG C of fusing point, open heating unit by the solder heat in crucible to 850~
900℃.The selection of solder is according to the physical characteristic of both materials of constantan wire Yu stainless steel needle tubing, belongs to hard solder, if
Temperature is less than 850 DEG C, and brazing filler metal melts can be caused insufficient, if above 900 degrees Celsius, can cause the alloy part element of solder
Scaling loss, both can reduce property of welded joint, and the connection of constantan wire and stainless steel needle tubing can be caused insufficient, cob webbing,
Produce the non-soldering area in many places.
The constantan wire is the constantan wire of Φ 0.05-0.1mm.The excessive influence assembling of constantan wire diameter, too small influence
Feasibility of welds and electric conductivity.
The outside diameter of the stainless steel needle tubing is 0.3-0.5mm, internal diameter 0.2-0.4mm.Stainless pin pipe diameter is production
Product index, the excessive Patient Experience in acupuncture of diameter is bad, and diameter is too small to influence doctor's operation, is that multiple composite factors determine
's.
The present invention operation principle be：
Hot pin to be welded is inserted with the tubule of constantan wire equivalent to inside, and hot pin to be welded has connected 1 gas of negative pressure device gas
The inner space of body and the inner space of argon filling case gas 2.When not extracting the gas in stainless steel needle tubing out, negative pressure device gas
The inner space of 1 gas is identical with the gas pressure of the inner space of 2 gas of argon filling case gas；When in extraction stainless steel needle tubing
During gas, the gas pressure of the inner space of 1 gas of negative pressure device gas reduces, and the gas pressure in stainless steel needle tubing also drops
It is low, so that the gas pressure of 2 gas interior of argon filling case gas is more than the gas pressure in stainless steel needle tubing, in gas pressure
Under the action of difference, the molten solder in crucible soaks health along the upper dynamic filling stainless steel needle tubing of stainless steel needle tubing, molten solder
The inner wall of copper wire and stainless steel needle tubing, so that the gap between full constantan wire and stainless steel needle tubing is filled, holding pressure differential 3~
5s, to realize the heating of whole welding position, then takes out hot pin from argon filling case, is cooled to room temperature, can complete stainless steel
The soldering connection of needle tubing and constantan wire.
Need to adjust the length that constantan wire divides with stainless pin pipe jointing part, that is, molten solder flows up filling not
The packed height for draw point pipe of becoming rusty can timing, control the gas of gas pressure and 2 gas interior of argon filling case gas in stainless steel needle tubing
Pressure differential between body pressure, pressure differential is bigger, and the length of constantan wire and stainless pin pipe jointing part point is longer, and pressure differential is got over
Small, the length of constantan wire and stainless pin pipe jointing part point is shorter.
Certainly, described above is not limitation of the present invention, and the present invention is also not limited to the example above, the art
The variations, modifications, additions or substitutions that those of ordinary skill is made in the essential scope of the present invention, fall within the guarantor of the present invention
Protect scope.
Claims (10)
- A kind of 1. medical hot pin low pressure assist type brazing device, it is characterised in that：The medical hot pin low pressure assist type brazing device It is made of negative pressure device (1), argon filling case (2), crucible (3) and heating unit (4), the negative pressure device (1) and the argon filling case (2) it is tightly connected, the negative pressure device (1) is located at the top of the argon filling case (2), and the inside of the argon filling case (2) is full of argon Gas, the crucible (3) are located at the inside of the argon filling case (2) and positioned at the lower section of the negative pressure device (1), the heating units (4) it is arranged on the crucible (3), the heating unit (4) is used to heat to the crucible (3), and the one of hot pin (6) to be welded End is in the negative pressure device (1), and the other end of hot pin (6) to be welded is located in the crucible (3), in the crucible (3) It is placed with solder.
- 2. medical hot pin low pressure assist type brazing device according to claim 1, it is characterised in that：The negative pressure device (1) sebific duct is located at by lower pressure extraction device (1-1), sebific duct (1-2) and rubber plug (1-3), the lower pressure extraction device (1-1) The inside of (1-2), the rubber plug (1-3) are sealedly connected on the inside of the sebific duct (1-2) and are located at the lower pressure extraction device The lower section of (1-1), the rubber plug (1-3) are provided with the hole for connecting hot pin (6) to be welded.
- 3. medical hot pin low pressure assist type brazing device according to claim 2, it is characterised in that：The lower pressure extraction Device (1-1) is piston.
- 4. medical hot pin low pressure assist type brazing device according to claim 2, it is characterised in that：Rubber plug (the 1- 3) upper end interference fit is connected to sebific duct (1-2) inside, and the lower end interference fit of the rubber plug (1-3) is connected to the argon filling On case (2).
- 5. medical hot pin low pressure assist type brazing device according to claim 3, it is characterised in that：The heat to be welded Pin (6) is tightly connected with the rubber plug (1-3).
- 6. medical hot pin low pressure assist type brazing device according to claim 1, it is characterised in that：The argon filling case (2) the argon filling mouth (5) for being filled with argon gas is provided with, the heating unit (4) is radio-frequency induction coil.
- 7. medical hot pin low pressure auxiliary is carried out using any medical hot pin low pressure assist type brazing devices of claim 1-5 The method of formula soldering, it is characterised in that the medical hot pin low pressure assist type method for welding includes：Step 1: the surface insulation coat of paint of constantan wire one end is removed, and the constantan wire and stainless steel needle tubing that insulation coat of paint will be removed It is placed in the container for filling acetone, is cleaned by ultrasonic using ultrasonic cleaning apparatus and removes the miscellaneous of stainless steel needle tubing and constantan wire surface Matter；Step 2: the constantan wire after removal impurity in step 1 is penetrated in the stainless steel needle tubing after removing impurity, constantan wire Constantan wire is stuck in the rear end of stainless steel needle tubing to rolled over by top, before infiltrating constantan wire with paste brazing flux QJ101 or QJ102 End and the front end of stainless steel needle tubing, obtain hot pin to be welded；Step 3: be filled with argon gas in argon filling case, protection atmosphere is formed, opens heating unit, solder is to being higher than in heating crucible 50~100 DEG C of solder fusing point；Step 4: by the rear end insertion negative pressure device of branched hot pin to be welded, the front end of hot pin to be welded is inserted into argon filling case Crucible in, in crucible molten solder submerge stainless steel 3~4mm of needle tubing, use negative pressure device extraction stainless steel needle tubing in gas Body, forms lower pressure in stainless steel needle tubing, and pressure differential causes the molten solder in crucible to flow up filling stainless pin The inner wall of pipe, molten solder wetting constantan wire and stainless steel needle tubing, keeps 3~5s, to realize the heating of whole welding position, leads to Cross and change the pressure in stainless steel needle tubing to adjust the height of molten solder filling, and then control constantan wire to connect with stainless steel needle tubing The length of socket part point；Step 5: taking out hot pin from argon filling case, it is cooled to room temperature to complete the soldering connection of stainless steel needle tubing and constantan wire.
- 8. medical hot pin low pressure assist type method for welding according to claim 7, it is characterised in that：The solder is SCuP-6Sn, 800 DEG C of fusing point, opens heating unit by the solder heat in crucible to 850~900 DEG C.
- 9. medical hot pin low pressure assist type method for welding according to claim 7, it is characterised in that：The constantan wire is The constantan wire of Φ 0.05-0.1mm.
- 10. medical hot pin low pressure assist type method for welding according to claim 7, it is characterised in that：The stainless steel The outside diameter of needle tubing is 0.3-0.5mm, internal diameter 0.2-0.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711273098.8A CN108031937B (en) | 2017-12-06 | 2017-12-06 | Medical hot needle low pressure assist type brazing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711273098.8A CN108031937B (en) | 2017-12-06 | 2017-12-06 | Medical hot needle low pressure assist type brazing device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108031937A true CN108031937A (en) | 2018-05-15 |
| CN108031937B CN108031937B (en) | 2019-11-08 |
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Citations (7)
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|---|---|---|---|---|
| JPS59110460A (en) * | 1982-12-16 | 1984-06-26 | Toshiba Corp | Joining method |
| SU1530362A1 (en) * | 1988-01-27 | 1989-12-23 | Оренбургский политехнический институт | Arrangement for tinning radiator pipes by pouring over |
| JPH10193089A (en) * | 1997-01-17 | 1998-07-28 | Suzuki Motor Corp | Soldering method of inner surface of cylindrical part |
| CN2865966Y (en) * | 2005-06-20 | 2007-02-07 | 田耀坤 | Hand brazing welding gun |
| CN102601478A (en) * | 2012-03-15 | 2012-07-25 | 哈尔滨工业大学 | Method for brazing stainless steel tube and internal copper wire for acupuncture and equipment using method |
| CN103121141A (en) * | 2013-03-04 | 2013-05-29 | 宁波恒升电气有限公司 | Soldering tin liquid transporting pipe |
| 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 |
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2017
- 2017-12-06 CN CN201711273098.8A patent/CN108031937B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59110460A (en) * | 1982-12-16 | 1984-06-26 | Toshiba Corp | Joining method |
| SU1530362A1 (en) * | 1988-01-27 | 1989-12-23 | Оренбургский политехнический институт | Arrangement for tinning radiator pipes by pouring over |
| JPH10193089A (en) * | 1997-01-17 | 1998-07-28 | Suzuki Motor Corp | Soldering method of inner surface of cylindrical part |
| CN2865966Y (en) * | 2005-06-20 | 2007-02-07 | 田耀坤 | Hand brazing welding gun |
| CN102601478A (en) * | 2012-03-15 | 2012-07-25 | 哈尔滨工业大学 | Method for brazing stainless steel tube and internal copper wire for acupuncture and equipment using method |
| CN103121141A (en) * | 2013-03-04 | 2013-05-29 | 宁波恒升电气有限公司 | Soldering tin liquid transporting pipe |
| 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 |
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| CN108031937B (en) | 2019-11-08 |
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Effective date of registration: 20230404 Address after: Room 3, No. 99, Shaojing Road, Kunshan Development Zone, Suzhou City, Jiangsu Province, 215333 Patentee after: Suzhou Wanzhi New Energy Technology Co.,Ltd. Address before: 215300 No. 6, organ street, small and medium enterprises Park, Kunshan Development Zone, Suzhou, Jiangsu, China 6 Patentee before: KUNSHAN WORLD-WIDE SPECIAL WELDING CO.,LTD. Patentee before: HARBIN WORLD WIDE WELDING TECHNOLOGY Co.,Ltd. |