CN102554988B - Manufacturing method and use of composite material - Google Patents

Abstract

The invention relates to a composite material, in particular to a rosin-infiltrated wood and use of the wood. The manufacturing method comprises the following steps of: (A), soaking the wood in an alcoholic solution of iodine, taking the wood out and drying the wood until alcohol is completely volatilized after the iodine infiltrates the wood; (B), heating rosin in a container so as to melt the rosin into liquid, soaking the wood treated by the step A in the melted rosin, keeping the temperature at 150-180 DEG C for a period of time; and (C), taking the wood out, cooling, and removing large-particle rosin from the surface of the wood. The use of the composite material is that: the composite material serves as a base plate for soldering tin, electronic components to be connected are arranged on the base plate, and the rosin is melted at high temperature generated by soldering iron for assisting welding. The invention has the advantages that: a novel method for infiltrating rosin in the wood is provided.

Description

A kind of manufacture method of composite and purposes

Technical field

The present invention relates to a kind of composite, specifically, what relate to is a kind of timber that infiltrates rosin.

Background technology

Electrophile, electrical equipment repairman use flatiron soldered elements, usually use rosin as scaling powder.Pretty troublesome thing is: on the other hand will hold flatiron, will hold element or circuit board on the other hand, fixing solder stick also simultaneously, because so staff limited amount picks rosin very inconvenient in welding process.

Summary of the invention

In order to overcome the deficiency in existing scolding tin process, the present invention discloses a kind of composite, and this composite is made to the backing plate that scolding tin operation is used, and can when scolding tin operation, obtain easily scaling powder----rosin.

The technical solution adopted for the present invention to solve the technical problems is:

A manufacture method for composite, the steps include:

A, is immersed in timber in the alcoholic solution of iodine, and after the tincture of iodine infiltrates timber, take out timber and dry in the air to alcohol and be evaporated completely,

B, at vessel in heating rosin, makes rosin be molten into liquid state, the timber by A step process is soaked in the rosin of fusing, and maintains the temperature at 150 ℃---and 180 ℃, continue for some time,

C, takes out timber, cooling, removes wood surface bulky grain rosin.

The purposes of described composite: the backing plate this composite as scolding tin operation, on this backing plate, the electronic component that placement will connect, the high temperature melting rosin that flatiron produces is to help weldering.

The principle of institute of the present invention foundation is: 1, iodine is easy to be dissolved in alcohol, 2, all timber all has certain hole, can infiltrate the rosin of the tincture of iodine and fusing, 3, iodine is easy to distillation, 113.5 ℃ of the fusing points of iodine, 184.35 ℃ of boiling points.4, rosin has help weldering effect when scolding tin operation, and 5, under the high temperature action of flatiron, the rosin in timber can melt out, and 6, be engaged in scolding tin operation on the backing plate made at such composite, conveniently obtain rosin, for electronic production is provided convenience.

The principle of institute of the present invention foundation also can be expressed as like this: the tincture of iodine infiltrates timber, after alcohol volatilization, in timber, contain iodine particle, iodine particle, when running into high temperature, very easily distils, and iodine distillation becomes gas, cause volumetric expansion, gas can leave timber, so, leave larger hole to allow rosin infiltrate timber.

Patent application number is 86102280 (titles: technical scheme a kind of method of modifying of Masson pine timber) provides a kind of timber to infiltrate the method for rosin, it is 86102280 scheme that the present invention compares application number, have the following advantages: 1, without solvent (alcohol) dissolving rosin, 2, drying means that need not be special.Because the in the situation that of heating, timber can be dried very soon, after stopping heating, the remaining temperature of wood utilization, continues to discharge moisture, and temperature slightly reduces, and can form negative pressure, thereby rosin is further infiltrated to timber, improves the rosin content in timber.3, iodine is rapidly distillation and leave timber in the timber of high temperature, and forms compared with macrovoid, can further improve the infiltration effect of rosin, and rosin infiltrates the time of timber and containing the timber of iodine, do not compare, and the time can shorten, thus the output in the raising unit interval.4, by method of the present invention, make rosin infiltrate timber, the rosin content in timber is very high: at wood surface, can with the naked eye see rosin particle, with cutter, cut timber open, from the surface of timber to timber, compared with depths, have rosin particle.

Because all timber is all the material with hole, again because the fusing point of rosin is 110 ℃～135 ℃, also because do not have the timber burning-point can be lower than the burning-point of rosin, the fusing point of rosin is also not enough to allow timber zoom become and sticks with paste, so, all timber can utilize method provided by the invention to process timber, makes timber infiltrate rosin.

The invention has the beneficial effects as follows: provide a kind of new method that makes rosin infiltrate timber, and the rosin content in timber is very high.

The specific embodiment

Although all timber is all the material that has hole, but, be easy to expect: the difficulty that fine and close timber infiltrates the tincture of iodine and rosin is larger, here the difficulty referring to is: the time longer, that be soaked in rosin time that is soaked in the tincture of iodine is longer, here said difficulty also can be understood as: under identical condition, the percentage composition that fine and close timber infiltrates rosin is less than loose timber.Fine and close timber is common practise, and such as mulberry, apricot wood, Ash are common fine and close timber, wooden loose timber is a lot: poplar, pine are all common unsound timber.

Step is:

A, gets a timber, and loose timber is preferred version, such as selecting poplar, pine, be immersed in the alcoholic solution of iodine, being dipped to infiltration 5mm is preferred version, then, take out timber and dry in the air to alcohol and be evaporated completely, the alcoholic solution of iodine is also the tincture of iodine, through test discovery, in the tincture of iodine, the quality percentage composition of iodine be take 5%-9% as preferred version, if concentration is too low, the amount of iodine in timber is too low, and the concentration that subsequent step infiltrates rosin is not high yet.The reason that in timber, the depth of penetration of the tincture of iodine is 5mm is: when flatiron contacts with the timber that contains rosin, rosin can melt out from wood surface because flatiron and timber are not long time of contact, shortage of heat with conduct to timber compared with depths, so, there is no need to infiltrate too dark.Through test, find: when in the tincture of iodine, the content of iodine surpasses 9%, little on follow-up work impact, reason is: the hole of timber itself also can infiltrate the liquid rosin of a part, iodine the effect is here: in subsequent step, can allow less hole infiltrate rosin, thereby improve the rosin content of this composite.Taking out the timber reason being evaporated completely to alcohol of drying in the air is: 1, alcohol is inflammable, in order to prevent alcohol burning, so will allow alcohol be evaporated completely, carries out next step again.2, alcohol is evaporated completely, and iodine forms the larger particle of particle, can better carry out next step.

B, in a container, heating rosin, make rosin be molten into liquid state, because iodine distillation is very fast, even at normal temperatures, iodine also can distil, so, for the effect obtaining, to as early as possible the timber of the alcohol that dried in the air be soaked in the rosin of fusing, and keep a period of time, it is liquid that this process still keeps rosin, if timber is fine and close, the long point of time needing, if timber is loose, the time is shorter: if to infiltrate darker, time will long point, if that infiltrates is more shallow, the time is shorter, in other words: timber is soaked in the rosin of fusing, until the degree of depth that rosin infiltrates, till concentration meets the demands.

Through overtesting, find, poplar, pine can be obtained good osmotic effect.Through test, find: through the timber of A step process, be placed on ventilation, at normal temperatures, within 1 hour, just can allow the alcohol in timber be evaporated completely, test is also found: after the timber of A step process is shelved over 24 hours at normal temperatures, in B step, the effect of timber infiltration rosin is poor, through the timber of A step process, shelves at normal temperatures and is no more than 5 hours, in B step, the effect difference of timber infiltration rosin is little, and the effect of infiltration rosin is better.The burning-point of timber is more than 200 ℃, so, in order to prevent that timber zoom from becoming, stick with paste, the temperature of rosin can not be too high, still, the temperature of rosin is too low, will cause the mobility variation of rosin, be difficult for infiltrating timber, through test, find, the temperature of rosin is at 150 ℃---and in the time of 180 ℃, can make the rosin content in this composite higher.

C, takes out timber, cooling, removes wood surface bulky grain rosin.

Through test, find: loose seasoned wood soaks and infiltrates after 5mm, at 150 ℃ in the tincture of iodine---in 180 ℃ of liquid rosin, continue to soak the 1 hour above rosin that can infiltrate 3 mm depths, and the percentage composition that timber contains rosin is higher.But, with density, timber variety, limit timber and be difficult to, because, different growing environments, the density of timber has larger difference, different water content, the density of timber has larger difference, and the different parts density of same timber also has difference, same timber, store method is different, memory time is different, and the density variation of timber is also larger.

The purposes of described composite: the backing plate this composite as scolding tin operation, on this backing plate, the electronic component that placement will connect, the high temperature melting rosin that flatiron produces is to help weldering.Although flatiron with timber Long contact time after can allow timber zoom, become to stick with paste,, the time of soldering of electronic components is short, is easy to control allow the constant paste of backing plate that uses this composite to make, zoom not.On the material of being manufactured by method of the present invention, carry out the scolding tin operation of electronic component, can raise the efficiency, and facilitate electrophile to operate.Illustrate: if two sections of copper wires will be welded together by scolding tin, can do like this: one section of copper wire is placed on this backing plate, one hand-held other one section of copper wire, make the welding ends contact of two sections of copper wires, an other hand-held electric iron, has the tin of molten condition on electric iron, with electric iron, push down the welding ends of two sections of copper wires, the backing plate that this composite is made melts out rapidly rosin under the effect of high temperature, and scolding tin covers the surface of copper wire under rosin auxiliary, thereby completes welding.

Claims (2)

1. a manufacture method for composite, the steps include:

A, is immersed in loose timber in the alcoholic solution of iodine, and after the tincture of iodine infiltrates timber 5mm, take out timber and dry in the air to alcohol and be evaporated completely, and timber shelves at normal temperatures and be no more than 5 hours,

And: in the described tincture of iodine, the quality percentage composition of iodine is 5%-9%;

B, at vessel in heating rosin, makes rosin be molten into liquid state, the timber by A step process is soaked in the rosin of fusing, and maintains the temperature at 150 ℃---and 180 ℃, continue for some time,

C, takes out timber, cooling, removes wood surface bulky grain rosin.

2. the purposes of composite as claimed in claim 1: the backing plate this composite as scolding tin operation.