CN106975751A - A kind of preparation method of antistatic alloy material - Google Patents

Abstract

The invention discloses a kind of preparation method of antistatic alloy material, the present invention lifts the antistatic effect of alloy material using addition antistatic filler in the alloy, the antistatic filler of the present invention utilizes natural conductive anti-static material in Radix Sorghum vulgare Pers and mung bean sprouts, mixed with nutriment, cultivate microorganism, in incubation, induction is used as to be powered, promote microbial variation, increase its antistatic effect, alloy is first processed into Al-Mg alloy foam prefabricated component on present invention process, and vacuum oozes product into alloy components in the form of colloidal sol by antistatic filler, the finished product after double sintering again, this technological process improves agglomeration of the antistatic filler in alloy material, its degree of scatter is higher, so as to possess more preferable antistatic effect.

Description

A kind of preparation method of antistatic alloy material

Technical field

Field is manufactured the present invention relates to anti-static material, and in particular to a kind of preparation method of antistatic alloy material.

Background technology

Preferable electronic package material will possess good, the enough intensity of low thermal coefficient of expansion, high heat conduction, air-tightness and firm The advantages of spending, be easy to machine-shaping and welding and lightweight light weight, a few class wrapper materials commonly used at present mainly have Plastic Package Material, ceramic packaging material, Materials for Metal Packaging and several major classes of metal-base composites, wherein metal-based compound electronics are encapsulated Material has the advantages that intensity is high, the good focus as industry research of thermal conductivity, especially aluminium based metal material, its lightweight it is excellent Point is extensively favored in automotive field, and the combination property for improving aluminum-based packaging material is also study hotspot, especially at antistatic aspect Research, at present be even more extensively paid attention to.

Electrostatic, is a kind of electric charge remained static.When accumulation is formed on some object or during surface Electrostatic, and electric charge is divided into two kinds of positive charge and negative electrical charge, that is to say, that electrostatic phenomenon is also classified into two kinds of i.e. positive electrostatic and negative electrostatic. Positive electrostatic is formed when positive charge is gathered on some object, is formed bearing when negative electrical charge is gathered on some object Electrostatic, but either positive electrostatic still bears electrostatic, when static electrification object contacts zero potential object（It is grounded object）Or have electricity with it Electric charge transfer can all occur during the object of potential difference, being exactly that we are daily sees spark static discharge phenomenon.

In the current growing electronics industry epoch, various microelectronics, photoelectron original paper application widely, and electrostatic is put Electric energy enough destroys electronic original part, the electrical property for changing semiconductor components and devices, destruction electronic system, causes whole equipment failure or mistake Spirit；At the same time, electrostatic spark is produced when electrostatic charge discharges, equipment of Flammable and Explosive Materials of easily igniting causes considerable risk and warp Ji loss；In addition, electrostatic easily sucks foul into clean environment, such as dust, foreign particles, easily make to contact with each other Product stick together, these can all cause great loss.

Addition antistatic additive is the effective ways for improving alloy material material surface electrical conductivity, and improves alloy material volume The technology that electrical conductivity can be blended using addition conductive filler or with other electroconductive molecules.Conductive filler method is added, this kind of method is led to It is often to mix various inorganic conductive fillers in alloy material matrix.At present with antistatic alloy composite materials made from the technology With very high use value, wherein much having been carried out commercialization abroad.

The content of the invention

The present invention provides a kind of preparation method of antistatic alloy material, and the present invention uses and adds antistatic fill out in the alloy Expect to lift the antistatic effect of alloy material, antistatic filler of the invention is anti-using natural conduction in Radix Sorghum vulgare Pers and mung bean sprouts Electrostatic substance, is mixed with nutriment, cultivates microorganism, in incubation, to be powered as induction, promotes microorganism Variation, increases and alloy first is processed into Al-Mg alloy foam prefabricated component on its antistatic effect, present invention process, and will be antistatic Filler vacuum in the form of colloidal sol oozes product into alloy components, then the finished product after double sintering, and this technological process improves Agglomeration of the antistatic filler in alloy material, its degree of scatter is higher, so as to possess more preferable antistatic effect.

To achieve these goals, the invention provides a kind of preparation method of antistatic alloy material, this method includes Following steps：

（1）Prepare antistatic filler

In mass ratio 1:3-5, takes Radix Sorghum vulgare Pers and mung bean sprouts to be put into 65 DEG C of baking ovens and dries 7-9h, then is crushed, and crosses 100 mesh Sieve, is that 1.5% acetum presses solid-liquid ratio 1 by sieving particle and mass fraction:1, it is put into digester, is steamed at 90-95 DEG C 4-5h is boiled, then cooking mixture is filtered while hot using gauze, filtrate, and the hydroxide of use quality fraction 20% is collected Potassium adjusts filtrate pH to neutrality；

Filtrate after above-mentioned regulation pH is put into vacuum concentration pot, the 55-60% of original volume is concentrated into, counts by weight 20-25 parts of concentrates, 15-20 parts of lecithin, 15-20 parts of ethylene glycol, 1-3 parts of dipotassium hydrogen phosphates, are well mixed, and sterilization disappears Poison, obtains culture medium；

By inoculum concentration 12-16%, rihizobium japonicum is seeded to above-mentioned culture medium, is placed in constant-temperature table, design temperature 30- 35 DEG C, 15-20h is cultivated under 200-250r/min, in incubation, culture medium is powered, makes the electricity in culture medium Flow for 5-10A, sterile water wash media surface is used after culture terminates, until its surface sterile silk, collects leacheate；

Count by weight, it is 10% lemon to take 10-15 parts of carbon fibers, 25-30 parts of above-mentioned leacheates, 10-15 parts of mass fractions Acid solution, 2-3 part mass fraction are 3% silver nitrate solution and 0.5-1.5 parts of aluminum nitrates, are put into mixer and are stirred with 150r/min 20-25min is mixed, then stands 3-5h, then filtering, you can obtain anti-static material conductive filler colloidal sol；

（2）Prepare alloy prefabricated component

First aluminium, magnesium, zinc, niobium, yittrium oxide, pore creating material, absolute ethyl alcohol are mixed, powder 10- is mixed with 300-500 turns/min rotating speed 15min, gained mixed material obtains green compact through being compacted densification, then green compact is put into mould hot under vacuum Sinter molding is pressed, sintering process is：System is warming up to 450 DEG C with 10-20 DEG C/min programming rate, and 450 DEG C are reached in temperature When pressurize, pressure is 50MPa, heat preservation sintering 20-35min, then naturally cools to release after room temperature, and products obtained therefrom is put into water Dried after dissolution pore creating material, obtain alloy prefabricated component standby；

（3）Alloy prefabricated component is put into mould, the conductive filler colloidal sol is subsequently added, long-pending 70- is oozed under -0.05MPa 100min, processing recovers normal pressure after terminating, take out prefabricated component, the drying process 4-6h in 75-90 DEG C of baking oven, then by prefabricated component It is placed again into mould, sinters 35-40min again under 720-740 DEG C, 35MPa pressure, finally cool release, is cooled to room Described antistatic alloy material is produced after temperature.

Embodiment

Embodiment one

In mass ratio 1:3, take Radix Sorghum vulgare Pers and mung bean sprouts to be put into 65 DEG C of baking ovens and dry 7-9h, then crushed, 100 mesh sieves are crossed, Sieving particle is pressed into solid-liquid ratio 1 with mass fraction for 1.5% acetum:1, it is put into digester, the boiling 4-5h at 90 DEG C, Then cooking mixture is filtered while hot using gauze, filtrate is collected, and the potassium hydroxide of use quality fraction 20% is adjusted Filtrate pH is to neutrality；Filtrate after above-mentioned regulation pH is put into vacuum concentration pot, the 55% of original volume is concentrated into, by weight Number meter 20 parts of concentrates, 15 parts of lecithin, 15 parts of ethylene glycol, 1 part of dipotassium hydrogen phosphate, are well mixed, and sterilizing, must cultivate Base.

By inoculum concentration 12%, rihizobium japonicum is seeded to above-mentioned culture medium, is placed in constant-temperature table, design temperature 30 DEG C, 15h is cultivated under 200r/min, in incubation, culture medium is powered, it is 5A to make the electric current in culture medium, Culture uses sterile water wash media surface after terminating, until its surface sterile silk, collects leacheate.

Count by weight, it is that 10% citric acid is molten to take 10 parts of carbon fibers, 25 parts of above-mentioned leacheates, 10 parts of mass fractions Liquid, 2 parts of mass fractions are 3% silver nitrate solution and 0.5 part of aluminum nitrate, are put into mixer and stir 20min with 150r/min, then 3h is stood, then filtering, you can obtain anti-static material conductive filler colloidal sol.

First aluminium, magnesium, zinc, niobium, yittrium oxide, pore creating material, absolute ethyl alcohol are mixed, powder is mixed with 300 turns/min rotating speed 10min, gained mixed material obtains green compact through being compacted densification, then green compact is put into mould hot under vacuum Sinter molding is pressed, sintering process is：System is warming up to 450 DEG C with 10 DEG C/min programming rate, adds when temperature reaches 450 DEG C Pressure, pressure is 50MPa, heat preservation sintering 20min, then naturally cools to release after room temperature, and products obtained therefrom is put into dissolution in water and made Dried after the agent of hole, obtain alloy prefabricated component standby.

Alloy prefabricated component is put into mould, the conductive filler colloidal sol is subsequently added, product is oozed under -0.05MPa 70min, processing recovers normal pressure after terminating, take out prefabricated component, and the drying process 4h in 75 DEG C of baking ovens then puts prefabricated component again Enter in mould, sinter 35min again under 720 DEG C, 35MPa pressure, finally cool release, be cooled to described in being produced after room temperature Antistatic alloy material.

Embodiment two

In mass ratio 1:5, take Radix Sorghum vulgare Pers and mung bean sprouts to be put into 65 DEG C of baking ovens and dry 9h, then crushed, 100 mesh sieves are crossed, will The particle that sieves is that 1.5% acetum presses solid-liquid ratio 1 with mass fraction:1, it is put into digester, the boiling 5h at 95 DEG C, then Cooking mixture is filtered while hot using gauze, filtrate, and the potassium hydroxide of use quality fraction 20% regulation filtrate is collected PH is to neutrality；Filtrate after above-mentioned regulation pH is put into vacuum concentration pot, the 60% of original volume is concentrated into, counts by weight 25 parts of concentrates, 20 parts of lecithin, 20 parts of ethylene glycol, 3 parts of dipotassium hydrogen phosphates, are well mixed, and sterilizing, obtain culture medium.

By inoculum concentration 16%, rihizobium japonicum is seeded to above-mentioned culture medium, is placed in constant-temperature table, design temperature 35 DEG C, 20h is cultivated under 250r/min, in incubation, culture medium is powered, it is 10A to make the electric current in culture medium, Culture uses sterile water wash media surface after terminating, until its surface sterile silk, collects leacheate.

Count by weight, it is that 10% citric acid is molten to take 15 parts of carbon fibers, 30 parts of above-mentioned leacheates, 15 parts of mass fractions Liquid, 3 parts of mass fractions are 3% silver nitrate solution and 1.5 parts of aluminum nitrates, are put into mixer and stir 25min with 150r/min, then 5h is stood, then filtering, you can obtain anti-static material conductive filler colloidal sol.

First aluminium, magnesium, zinc, niobium, yittrium oxide, pore creating material, absolute ethyl alcohol are mixed, powder 10- is mixed with 500 turns/min rotating speed 15min, gained mixed material obtains green compact through being compacted densification, then green compact is put into mould hot under vacuum Sinter molding is pressed, sintering process is：System is warming up to 450 DEG C with 20 DEG C/min programming rate, adds when temperature reaches 450 DEG C Pressure, pressure is 50MPa, heat preservation sintering 35min, then naturally cools to release after room temperature, and products obtained therefrom is put into dissolution in water and made Dried after the agent of hole, obtain alloy prefabricated component standby.

Alloy prefabricated component is put into mould, the conductive filler colloidal sol is subsequently added, product is oozed under -0.05MPa 100min, processing recovers normal pressure after terminating, take out prefabricated component, the drying process 6h in 90 DEG C of baking ovens, then by prefabricated component again It is put into mould, sinters 40min again under 740 DEG C, 35MPa pressure, finally cool release, is cooled to after room temperature described in producing Antistatic alloy material.

Claims (1)

1. a kind of preparation method of antistatic alloy material, this method comprises the following steps：

（1）Prepare antistatic filler

In mass ratio 1:3-5, takes Radix Sorghum vulgare Pers and mung bean sprouts to be put into 65 DEG C of baking ovens and dries 7-9h, then is crushed, and crosses 100 mesh Sieve, is that 1.5% acetum presses solid-liquid ratio 1 by sieving particle and mass fraction:1, it is put into digester, is steamed at 90-95 DEG C 4-5h is boiled, then cooking mixture is filtered while hot using gauze, filtrate, and the hydroxide of use quality fraction 20% is collected Potassium adjusts filtrate pH to neutrality；

Filtrate after above-mentioned regulation pH is put into vacuum concentration pot, the 55-60% of original volume is concentrated into, counts by weight 20-25 parts of concentrates, 15-20 parts of lecithin, 15-20 parts of ethylene glycol, 1-3 parts of dipotassium hydrogen phosphates, are well mixed, and sterilization disappears Poison, obtains culture medium；

By inoculum concentration 12-16%, rihizobium japonicum is seeded to above-mentioned culture medium, is placed in constant-temperature table, design temperature 30- 35 DEG C, 15-20h is cultivated under 200-250r/min, in incubation, culture medium is powered, makes the electricity in culture medium Flow for 5-10A, sterile water wash media surface is used after culture terminates, until its surface sterile silk, collects leacheate；

Count by weight, it is 10% lemon to take 10-15 parts of carbon fibers, 25-30 parts of above-mentioned leacheates, 10-15 parts of mass fractions Acid solution, 2-3 part mass fraction are 3% silver nitrate solution and 0.5-1.5 parts of aluminum nitrates, are put into mixer and are stirred with 150r/min 20-25min is mixed, then stands 3-5h, then filtering, you can obtain anti-static material conductive filler colloidal sol；

（2）Prepare alloy prefabricated component

First aluminium, magnesium, zinc, niobium, yittrium oxide, pore creating material, absolute ethyl alcohol are mixed, powder 10- is mixed with 300-500 turns/min rotating speed 15min, gained mixed material obtains green compact through being compacted densification, then green compact is put into mould hot under vacuum Sinter molding is pressed, sintering process is：System is warming up to 450 DEG C with 10-20 DEG C/min programming rate, and 450 DEG C are reached in temperature When pressurize, pressure is 50MPa, heat preservation sintering 20-35min, then naturally cools to release after room temperature, and products obtained therefrom is put into water Dried after dissolution pore creating material, obtain alloy prefabricated component standby；

（3）Alloy prefabricated component is put into mould, the conductive filler colloidal sol is subsequently added, long-pending 70- is oozed under -0.05MPa 100min, processing recovers normal pressure after terminating, take out prefabricated component, the drying process 4-6h in 75-90 DEG C of baking oven, then by prefabricated component It is placed again into mould, sinters 35-40min again under 720-740 DEG C, 35MPa pressure, finally cool release, is cooled to room Described antistatic alloy material is produced after temperature.