CN205786179U - A kind of device predicting scaling powder splashing characteristic - Google Patents
A kind of device predicting scaling powder splashing characteristic Download PDFInfo
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- CN205786179U CN205786179U CN201620526349.3U CN201620526349U CN205786179U CN 205786179 U CN205786179 U CN 205786179U CN 201620526349 U CN201620526349 U CN 201620526349U CN 205786179 U CN205786179 U CN 205786179U
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- scaling powder
- airway
- heat pipe
- clamper
- connection pipe
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Abstract
The utility model discloses a kind of device predicting scaling powder splashing characteristic.This device includes that heater block, vapour pressure measure parts and fixing device, and described heater block is a Pb-free solder stove；Described vapour pressure is measured parts and is included heat pipe, transitional connection pipe, airway and Pressure gauge；Described fixing device includes iron clamp, knob and the support with uniform scale value；The hollow airtight connection of heat pipe, transitional connection pipe, airway and Pressure gauge；Being provided with safety relief mouth at transitional connection pipe, safety relief mouth is made up of flange, clamper and rupture disk, and flange and clamper are provided with hollow passageway, and rupture disk is arranged in clamper hollow passageway, and clamper is arranged in flange；Described iron clamp is connected with support by knob；Iron clamp is connected with heat pipe or transitional connection pipe.The heat stability of component is judged be applicable to the development at solder stick solid soldering flux by this utility model, it is also possible to according to the steam pressure value recorded, the splashing of scaling powder is carried out anticipation.
Description
Technical field
This utility model relates to a kind of device predicting scaling powder splashing characteristic, it is adaptable to grinding of solder stick solid soldering flux
In system, the heat stability to scaling powder and component thereof judges, it is also possible to according to the steam pressure value the recorded splashing to scaling powder
Property carries out anticipation.
Background technology
Soldering is by after the solder metal heating and melting of low melting point, penetrates into and be filled in the welding method of materials to be welded junction.
Some chemical substance must be used in welding process to remove the oxide on materials to be welded surface, make between solder and welded article
Can well melt thus reach to help the effect of weldering, this can purification is referred to as helping by the material of weldering metal surface, help welding
Solder flux.
Along with the proposition of lead-free solder, the use of traditional leypewter is restricted, and the fusing point of leadless welding alloy compares stannum
The fusing point of metal is the highest 20 DEG C, and this means that needs higher temperature in welding process.At unleaded medicated core solder stick
Use in, the temperature of electric cautery can be up to more than 300 DEG C, and many compositions of scaling powder can gasify under this hot environment
Or decompose generation gas.Acutely produce and escaping gas is the one of the main reasons causing tin sweat(ing) and solder flux to splash, conventional
The method that inspection is splashed is to be filled by scaling powder after core wire drawing makes medicated core solder stick, uses electric cautery to carry out welding to detect splashing
Size.Although this method can directly obtain spatter loss coefficient, but just can carry out after needing to make product, the waste that there is solder is asked
Topic, and process is complicated.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of detection side for the not enough of above-mentioned existing means of testing
Just, the detection time is short, the device of the prediction scaling powder splashing characteristic that testing cost is low, it is adaptable to help weldering at solder stick solid
In the development of agent, the heat stability to component judges, it is also possible to enter the splashing of scaling powder according to the steam pressure value recorded
Row anticipation.
This utility model simulates medicated core solder stick environment in use by the constant high temperature that Pb-free solder stove provides,
Flux ingredients in closed system can occur the changes such as gasification in various degree, decomposition after being heated, due to helping of difference composition
Solder flux high temperature gasified decomposes the amount difference producing gas, and the speed of gas effusion is also not quite similar, the vapour pressure therefore obtained
The result of curve can be different.In the use of medicated core solder stick, just produce a main cause of scaling powder and tin sweat(ing) splashing
It is that scaling powder decomposes the gas produced too much, and gas differs relatively big with the coefficient of expansion of liquid, from the generation causing splashing.
The splashing of the medicated core solder stick obtained after may determine that scaling powder wire drawing by the vapour pressure Changing Pattern of relatively different scaling powders is big
Little.
This utility model solves above-mentioned technical problem and be the technical scheme is that
A kind of device predicting scaling powder splashing characteristic, measures parts and fixing device including heater block, vapour pressure, described
Heater block is a Pb-free solder stove；Described vapour pressure is measured parts and is included heat pipe, transitional connection pipe, airway and pressure
Power table；Described fixing device includes iron clamp, knob and the support with uniform scale value；
The hollow airtight connection of described heat pipe, transitional connection pipe, airway and Pressure gauge；
Being provided with safety relief mouth at described transitional connection pipe, safety relief mouth is made up of flange, clamper and rupture disk, flange
Being provided with hollow passageway with clamper, rupture disk is arranged in clamper hollow passageway, and clamper is arranged in flange；Rupture disk
Tolerance minimum burst pressure is 0.1Mpa；
Described iron clamp is connected with support by knob；Iron clamp is connected with heat pipe or transitional connection pipe.
For realizing this utility model purpose further, it is preferable that described heat pipe and airway are resistance to steam and faintly acid is situated between
Rustless steel or the pottery of matter corrosion are made.
Preferably, a diameter of 1.6cm of described heat pipe, a length of 7cm.
Preferably, a diameter of 0.6cm of described airway, a length of more than 25cm.
Preferably, described Pressure gauge is stainless steel pressure table, and range is 0 0.1MPa, and scale of precision is 1.6.
Preferably, described heat pipe and transitional connection pipe, transitional connection pipe and airway, airway and Pressure gauge all pass through spiral shell
The hollow connection of stricture of vagina.
Preferably, described heat pipe and transitional connection pipe, transitional connection pipe and airway, airway and manometric joint portion
Part is designed with polytetrafluoroethylene gasket.
Preferably, described polytetrafluoroethylene gasket thickness is 0.2 0.3mm, and voltage endurance capability is 0.25 4Mpa.
The method of the prediction scaling powder splashing characteristic of application this utility model device, comprises the steps:
1) the survey scaling powder unification treating formula is ground powdered, quantitatively weigh, be placed in the heat pipe of clean dried, will
Heat pipe passes through to connect together with transitional connection pipe, airway, Pressure gauge, it is ensured that the air-tightness of system；Vapour pressure is measured
Parts are fixed on iron clamp, and iron clamp is connected with support by knob, it is ensured that heat pipe and the direction at airway place and horizontal plane
Vertically；Being placed with lead-free solder in Pb-free solder stove, in heating process, furnace temperature is set to 275 285 DEG C, along with heat temperature raising,
Lead-free solder in stove is melted into liquid；The position of adjusting knob, makes the lower end of heat pipe slowly be immersed in melted solder,
Now starting timing, sample parts to be installed screw knob with fixing iron clamp height after being completely immersed in, record height h now, often
A force value is recorded every 5 10 seconds；After force value is stable, stops timing, adjusting knob, makes the weldering that heat pipe removal is melted
Material；
2) convert the survey scaling powder of different formulations, repeat step 1), it is ensured that the sample size every time weighed and the height of iron clamp are not
Become, in the same fashion the survey scaling powder of different formulations is tested, obtain the vapour pressure surveying scaling powder of different formulations at any time
Between variation relation and maximum decomposition pressure force value, according to the result of test, determine the steam that the scaling powder recorded produces after being heated
Pressing the least, the spatter loss coefficient of solder stick prepared with corresponding scaling powder is the least.
This utility model Pb-free solder stove uses the lead-free solder that fusing point is at about 223 DEG C, by heating system by furnace temperature
Heat and control within 275-285 DEG C, it is provided that the environment that simulation lead-free soldering wire uses in welding.
There is safety relief mouth at this utility model transitional connection pipe, open in time when can guarantee that hypertonia in system, make pressure
Power declines, and prevents the security incident caused because of pressure limit and instrument from damaging.
There is uniform scale on this utility model fixed support, can record, by the regulation of knob, the height that iron clamp is each.
This utility model has the advantage that compared with prior art means
1, scaling powder splashing size is directly to test scaling powder to utilize this utility model device to judge, it is not necessary to will help weldering
Agent carries out filling the operations such as core wire drawing, and simple to operate, the cycle is short.
2, the soldering flux quantity that this utility model consumes is little, and need not the participation of solder metal, is greatly saved consumption of raw materials,
It also avoid the subsequent operations such as waste recovery.
3, this utility model simple in construction, reasonable in design, it is easy to accomplish, can be widely used for development and the screening of formulations of solder flux
During.
Accompanying drawing explanation
Fig. 1 is the structural representation of the device of this utility model prediction scaling powder splashing characteristic.
Fig. 2 is the structural representation of threaded connection place in Fig. 1.
Fig. 3 is the structural representation of safety relief mouth in Fig. 1.
Shown in figure: Pb-free solder stove 1, heat pipe 2, safety relief mouth 3, transitional connection pipe 4, airway 5, pressure
Table 6, iron clamp 7, knob 8, support 9, flange 10, clamper 11, rupture disk 12, teflon gasket 13, spiral shell
Stricture of vagina 14.
Detailed description of the invention
For being more fully understood that this utility model, below in conjunction with the accompanying drawings this utility model is described further, but this practicality is new
The embodiment of type does not limit so.
As it is shown in figure 1, a kind of device predicting scaling powder splashing characteristic, measure parts including heater block, vapour pressure and consolidate
Determining device, described heater block is a Pb-free solder stove 1；Pb-free solder stove 1 is used for heating, and puts in Pb-free solder stove 1
Having lead-free solder, can control temperature range at 200 430 DEG C, in heating process, furnace temperature is set to 275 285 DEG C, along with adding
Heat heats up, and the lead-free solder in stove can be melted into liquid.According to the condition of hand soldering, preferably by the heating of stannum stove 1
Temperature is set to 280 DEG C.Described vapour pressure is measured parts and is included heat pipe 2, transitional connection pipe 4, airway 5 and Pressure gauge 6；
Described fixing device includes an iron clamp 7, the knob 8 that can regulate height and the support 9 with scale value.
As shown in Fig. 1 and Fig. 2, heat pipe 2, transitional connection pipe 4, airway 5 and the hollow airtight connection of Pressure gauge 6；Excellent
Selection of land heat pipe 2 and transitional connection pipe 4, transitional connection pipe 4 and airway 5, airway 5 and Pressure gauge 6 all pass through screw thread
14 hollow connections, junction is provided with polytetrafluoroethylene gasket 13, to ensure the air-tightness of system, preferably polytetrafluoroethylene packing ring
13 thickness are 0.2 0.3mm, and voltage endurance capability is 0.25 4Mpa.
The diameter of heat pipe 2 is preferably 1.6cm, a length of 7cm.The diameter of airway 5 is preferably 0.6cm, a length of
More than 25cm.Pressure gauge 6 is preferably stainless steel pressure table, and range is 0 0.1MPa, and scale of precision is 1.6.
As it is shown on figure 3, be provided with safety relief mouth 3 at transitional connection pipe 4, safety relief mouth 3 is mainly by flange 10, clamping
Device 11 and rupture disk 12 form, and flange 10 and clamper 11 are provided with hollow passageway, and rupture disk 12 is arranged on clamper 11
In hollow passageway, clamper 11 is arranged in flange 10；It is 0.1Mpa that rupture disk 12 tolerates minimum burst pressure.Steam
The sealing system that pressure measures parts is interior it is ensured that be completely dried, it is to avoid because the residual of moisture causes system pressure to steeply rise, draw
Send out the unexpected and damage of instrument.This utility model is provided with safety relief mouth 3, and pressure reaches rupture disk during 0.1Mpa when heated
Can split, complete pressure release, in making system, pressure recovers normal, the hypertonia that would not cause because of the moisture of unexpected residual
Device is caused to pop suddenly.
Iron clamp 7 is connected with support 9 by knob 8；Iron clamp 7 is connected with heat pipe 2 or transitional connection pipe 4；
Heat pipe 2 is with airway 5 and is capable of withstanding the similar materials such as rustless steel or pottery that steam corrodes with weak acidic medium
Make.
A diameter of 1.6cm of heat pipe 2, a length of 7cm, a diameter of 0.6cm of airway 5, a length of 25cm or more
Long, it is to avoid overheated steam causes error in reading in entering Pressure gauge 6.
Pressure gauge 6 is stainless steel pressure table, is resistant to certain corrosion, and range is 0 0.1MPa, and scale of precision is 1.6.
Support 9 in fixing device is with uniform scale.
During test, by powdered for unified for testing sample grinding, convenient sample-adding, quantitatively weigh sample powder about 1g, be placed on clean
In the clean heat pipe 2 being dried, by heat pipe 2 and transitional connection pipe 4, airway 5, Pressure gauge 6 as shown in Fig. 1 and Fig. 2
Connected together by screw thread 14.Bonded block is by adding polytetrafluoroethylene gasket 13 to ensure the air-tightness of system.
Vapour pressure is measured parts and is fixed on iron clamp 7 by the upper end of heat pipe 2, it is ensured that heat pipe 2 and airway 5 place
Direction and horizontal plane.It is placed with lead-free solder in Pb-free solder stove 1, temperature range can be controlled at 200 430 DEG C, adding
In thermal process, furnace temperature is set to 275 285 DEG C, and along with heat temperature raising, the lead-free solder in stove is melted into liquid；Adjusting knob 8
Position, make the lower end of heat pipe 2 slowly be immersed in melted solder, now start timing, sample parts to be installed soak completely
Knob 8 is screwed with fixing iron clamp 7 highly after entering, record height h now, recorded a force value every 5 10 seconds；Treat
Stop timing, adjusting knob 8 after force value is stable, make the solder that heat pipe 2 removal is melted, after device cools down, take off
Heat pipe 2 and airway 5 are carried out.
Ensure that the height of sample size and the iron clamp 7 every time weighed is constant, in the same fashion other sample is tested, obtain
The vapour pressure relation over time of different samples and maximum decomposition pressure force value, by comparing, less vapour pressure represents and helps
The trend that solder flux and component thereof cause tin sweat(ing) and solder flux to splash is less.According to the result of test, the scaling powder recorded with this device
The vapour pressure produced after being heated is the least, and the spatter loss coefficient with the prepared solder stick of corresponding scaling powder is the least.This utility model fills
The purpose put is through measuring scaling powder force value under welding temperature to the splashing after predicting it and being made into medicated core solder stick
Rate, if the force value that scaling powder records is too high, after just explanation makes stannum silk product with it, spatter loss coefficient also can be higher, thus
Can directly give up this formulations of solder flux, without just knowing its splashing performance size after scaling powder is made solder stick,
The most this device may also be used for a kind of means in the development of scaling powder as screening formulations of solder flux.
This utility model mainly formulations of solder flux material compares from each other, and the steam pressure value only surveying a kind of sample is nonsensical,
At least to do two kinds, then can predict splashing performance according to the size of the steam pressure value of their record, join than if any three kinds
The scaling powder of side, is designated as F1, F2 and F3 respectively, and the high-vapor-pressure value recording them respectively is P1, P2 and P3, and
P1 > P2 > P3, that just can predict that the splashing that scaling powder F3 causes after making stannum silk is minimum.This utility model is not required to help
Its splashing performance size just known by solder flux after making solder stick, considerably reduce time and the cost of test.
This utility model is not done any restriction by above-mentioned embodiment, every implements above according to utility model technical spirit
Any simple modification, change and equivalent structure change that mode is done all still fall within the protection model of technical solutions of the utility model
In enclosing.
Claims (8)
1. the device predicting scaling powder splashing characteristic, it is characterised in that include heater block, vapour pressure measure parts and
Fixing device, described heater block is a Pb-free solder stove；Described vapour pressure is measured parts and is included that heat pipe, transition connect
Pipe, airway and Pressure gauge；Described fixing device includes iron clamp, knob and the support with uniform scale value；
The hollow airtight connection of described heat pipe, transitional connection pipe, airway and Pressure gauge；
Being provided with safety relief mouth at described transitional connection pipe, safety relief mouth is made up of flange, clamper and rupture disk, flange
Being provided with hollow passageway with clamper, rupture disk is arranged in clamper hollow passageway, and clamper is arranged in flange；Rupture disk
Tolerance minimum burst pressure is 0.1Mpa；
Described iron clamp is connected with support by knob；Iron clamp is connected with heat pipe or transitional connection pipe.
The device of prediction scaling powder splashing characteristic the most according to claim 1, it is characterised in that described heat pipe and leading
Trachea is resistance to steam and the rustless steel of weak acidic medium corrosion or pottery is made.
The device of prediction scaling powder splashing characteristic the most according to claim 1, it is characterised in that described heat pipe straight
Footpath is 1.6cm, a length of 7cm.
The device of prediction scaling powder splashing characteristic the most according to claim 1, it is characterised in that described airway straight
Footpath is 0.6cm, a length of more than 25cm.
The device of prediction scaling powder splashing characteristic the most according to claim 1, it is characterised in that described Pressure gauge is not
Rust steel Pressure gauge, range is 0 0.1MPa, and scale of precision is 1.6.
The device of prediction scaling powder splashing characteristic the most according to claim 1, it is characterised in that described heat pipe and mistake
Crossing connecting tube, transitional connection pipe and airway, airway is all connected by thread hollow with Pressure gauge.
The device of prediction scaling powder splashing characteristic the most according to claim 6, it is characterised in that described heat pipe and mistake
Crossing connecting tube, transitional connection pipe and airway, airway and manometric bonded block are designed with polytetrafluoroethylene gasket.
The device of prediction scaling powder splashing characteristic the most according to claim 7, it is characterised in that described politef
Gasket thickness is 0.2 0.3mm, and voltage endurance capability is 0.25 4Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620526349.3U CN205786179U (en) | 2016-06-01 | 2016-06-01 | A kind of device predicting scaling powder splashing characteristic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620526349.3U CN205786179U (en) | 2016-06-01 | 2016-06-01 | A kind of device predicting scaling powder splashing characteristic |
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| Publication Number | Publication Date |
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| CN205786179U true CN205786179U (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620526349.3U Withdrawn - After Issue CN205786179U (en) | 2016-06-01 | 2016-06-01 | A kind of device predicting scaling powder splashing characteristic |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105910955A (en) * | 2016-06-01 | 2016-08-31 | 华南理工大学 | Device and method for prediction of flux splash characteristics |
-
2016
- 2016-06-01 CN CN201620526349.3U patent/CN205786179U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105910955A (en) * | 2016-06-01 | 2016-08-31 | 华南理工大学 | Device and method for prediction of flux splash characteristics |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161207 Effective date of abandoning: 20180914 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20161207 Effective date of abandoning: 20180914 |