CN105618714B - Aluminizing and embedding casting process for aluminum-based material - Google Patents
Aluminizing and embedding casting process for aluminum-based material Download PDFInfo
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- CN105618714B CN105618714B CN201511007238.8A CN201511007238A CN105618714B CN 105618714 B CN105618714 B CN 105618714B CN 201511007238 A CN201511007238 A CN 201511007238A CN 105618714 B CN105618714 B CN 105618714B
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- 239000000463 material Substances 0.000 title claims abstract description 304
- 238000005266 casting Methods 0.000 title claims abstract description 74
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 46
- 238000005269 aluminizing Methods 0.000 title abstract 11
- 238000000034 method Methods 0.000 claims abstract description 28
- 238000004140 cleaning Methods 0.000 claims abstract description 10
- 238000001035 drying Methods 0.000 claims abstract description 6
- 239000012670 alkaline solution Substances 0.000 claims abstract description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 45
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 45
- 238000001994 activation Methods 0.000 claims description 29
- 239000004411 aluminium Substances 0.000 claims description 20
- 239000000243 solution Substances 0.000 claims description 16
- 238000005480 shot peening Methods 0.000 claims description 10
- 239000000289 melt material Substances 0.000 claims description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
- 230000003746 surface roughness Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000007872 degassing Methods 0.000 claims description 5
- 238000007711 solidification Methods 0.000 claims description 5
- 230000008023 solidification Effects 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims 1
- 239000000155 melt Substances 0.000 claims 1
- 230000004913 activation Effects 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 238000002791 soaking Methods 0.000 abstract description 2
- 238000004321 preservation Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 10
- 239000010410 layer Substances 0.000 description 6
- 229910001018 Cast iron Inorganic materials 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000002708 enhancing effect Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000005474 detonation Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000004781 supercooling Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009661 fatigue test Methods 0.000 description 1
- -1 ferrous metals Chemical class 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000011214 refractory ceramic Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/16—Casting in, on, or around objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/0009—Cylinders, pistons
- B22D19/0027—Cylinders, pistons pistons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/0081—Casting in, on, or around objects which form part of the product pretreatment of the insert, e.g. for enhancing the bonding between insert and surrounding cast metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/02—Casting in, on, or around objects which form part of the product for making reinforced articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D23/00—Casting processes not provided for in groups B22D1/00 - B22D21/00
- B22D23/04—Casting by dipping
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
An aluminizing and embedding process for an aluminum-based material comprises selection of an aluminizing material and surface activation treatment of the aluminum-based material, wherein the selection of the aluminizing material refers to selection of the aluminizing material according to the aluminum-based material, the surface activation treatment of the aluminum-based material refers to soaking of the aluminum-based material in an alkaline solution, then taking out, cleaning and drying, the selection of the aluminizing material and the surface activation treatment of the aluminum-based material further comprise aluminizing and embedding, the aluminizing and embedding refer to melting of the selected aluminizing material and then heat preservation, then heating of the aluminum-based material subjected to the surface activation treatment, then placing the aluminum-based material in a aluminizing material melt and vibrating the aluminum-based material up and down, then placing the taken aluminum-out aluminum-based material in a mold and pouring with the aluminizing material melt to form a casting, and after the casting is solidified, a metallurgical bonding surface is formed between the aluminum-based. The design is simple and convenient to operate, low in cost and easy to popularize and use, and the aluminum-based material and the aluminized material form a metallurgical bonding surface.
Description
Technical field
The present invention relates to aluminising and the inlay casting technique in non-ferrous metals casting field, more particularly to a kind of alumina-base material, mainly
Suitable in other aluminium alloy castingses and alumina-base material inlay casting formed into metallurgical binding face.
Background technology
All the time, aluminium alloy is all the preferred material for manufacturing diesel motor piston, but with heavy duty diesel engine
Detonation pressure improve constantly, piston is to use the material such as most outstanding Mahle174+ or S2N+ in aluminum alloy materials also can not
Meet harsh working condition requirement.Easily there is aditus laryngis cracking under more than 18MPa detonation pressure operating modes in aluminum piston, and this causes detonation pressure to exist
Progressively start to use all-steel piston on more than 20MPa diesel engine.However, all-steel piston processing technology is complicated, it is manufactured into
This height, and heavier-weight, therefore, engineers and technicians are sought to work aluminum piston always quick-fried on new material, new technology direction
Press the technology further lifted.
At present, main technology path is to carry out local enhancement to piston throat site.Wherein more ripe technology has
It is following two：It is using Extrution casting technique that alumina fibre prefabricated section is excellent in piston crown formation high-temperature behavior with aluminium alloy
Composite, so as to improve the fatigue at high temperature performance of aluminum piston；In piston combustion room one is formed using process for treating surface
Layer refractory ceramics coating, so as to improve the fatigue at high temperature performance of piston.But both casts, processing and detection are all
It is extremely difficult, so as to cause cost higher, be not suitable for high-volume popularization and application.
Chinese patent application publication No. is CN103820752A, and data of publication of application is the disclosure of the invention on May 28th, 2014
A kind of cast iron ring carrier piston activation alumetizing process and its activating treatment equipment, its technique are included at the activation before alitizing
Reason, the activation process are the removing surfaces for cast iron ring carrier, after soaking certain time in weakly alkaline activation process liquid, clearly
Water, which rinses, to be air-dried, and hot aluminising 3-4 minutes is then carried out under 730-740 DEG C of temperature conditionss.Although the invention passes through aluminising work
Skill improves the interface bond strength of insert and piston matrix, but it still has following defect：The invention medium cast iron insert
Fusing point to be significantly larger than the temperature conditionss of hot aluminising, when carrying out hot aluminising to cast iron ring carrier, cast iron ring carrier will not be melted, but
It is for alumina-base material, the alumetizing process can cause alumina-base material to melt, so that alumina-base material and aluminising material are not
Form metallurgical binding face.
The content of the invention
The purpose of the present invention is to overcome alumina-base material present in prior art not form metallurgical binding face with aluminising material
The defects of and problem, there is provided a kind of alumina-base material and aluminising material form aluminising and the inlay casting work of the alumina-base material in metallurgical binding face
Skill.
To realize object above, technical solution of the invention is：A kind of aluminising of alumina-base material and inlay casting technique, bag
The selection and alumina-base material surface activation process, the selection of the aluminising material for including aluminising material refer to be selected according to alumina-base material
Aluminising material is taken, the alumina-base material surface activation process, which refers to alumina-base material being placed in alkaline solution, soaks, and then takes out
Cleaning, dry；
The selection of the aluminising material after alumina-base material surface activation process with also including aluminising and inlay casting, the aluminising
Comprise the following steps successively with inlay casting：First by the aluminising melt material of selection, then aluminising material liquation is incubated, then will
The alumina-base material of surface activation process is heated, then alumina-base material is placed in aluminising material liquation and by above and below alumina-base material
Vibration, then the alumina-base material of taking-up is placed in mould and carries out cast with aluminising material liquation form casting, casting solidification
Metallurgical binding face is formed between alumina-base material and aluminising material afterwards, now, aluminising terminates with inlay casting.
In the aluminising and inlay casting, after aluminising melt material, then aluminising material liquation refined, degasification and slagging-off,
Then aluminising material liquation is incubated.
In the aluminising and inlay casting, the holding temperature of aluminising material liquation is higher than the fusing point of aluminising material 10 DEG C, aluminium base
The heating-up temperature of material is lower than the fusing point of alumina-base material 100 DEG C.
The aluminising is with inlay casting, alumina-base material being placed in aluminising material liquation and is by alumina-base material up-down vibration
Refer to：Alumina-base material is placed in aluminising material liquation and alumina-base material is done amplitude as 50 millimeters, frequency is 1 hertz upper and lower past
Multiple motion, after 30 to 60 seconds, take out alumina-base material.
In the selection of the aluminising material, aluminising material is chosen, the fusing point of aluminising material is less than the fusing point of alumina-base material.
The fusing point of the aluminising material is lower than the fusing point of alumina-base material 10 DEG C.
In the alumina-base material surface activation process, the surface of alumina-base material is first subjected to shot-peening, then alumina-base material is entered
Row ultrasonic wave is cleaned, and then alumina-base material is placed in sodium hydroxide solution and soaked, then alumina-base material is taken out and cleaned,
Dry, then alumina-base material is placed under sealed environment and preserved.
In the alumina-base material surface activation process, first pass through a diameter of 2 millimeters of shot and the surface of alumina-base material is entered
Row shot-peening, so that the surface roughness of alumina-base material is more than or equal to 6 microns, then alumina-base material is subjected to ultrasonic wave cleaning, then
Alumina-base material is placed in temperature as 80 DEG C, concentration is to be soaked 5 to 10 minutes in 20% sodium hydroxide solution, to remove aluminium base
Expect the alumina layer on surface.
After the alumina-base material takes out from sodium hydroxide solution, first alumina-base material is cleaned with pure water, then by aluminium
Sill drying is placed in vacuum bag.
The alumina-base material is 4032 wrought aluminium alloys, and aluminising material is Mahlel74 aluminium alloys.
Compared with prior art, beneficial effects of the present invention are：
1st, in the aluminising due to a kind of alumina-base material of the present invention and inlay casting technique in aluminising and inlay casting, after it will melt
Aluminising material liquation be incubated and heated alumina-base material, to control the temperature of aluminising, ensure that alumina-base material will not
It is melted, meanwhile, by the way that alumina-base material is placed in aluminising material liquation and by alumina-base material up-down vibration, to control aluminising
Time, not only ensure the abundant aluminising of alumina-base material, and ensure that alumina-base material will not be melted, such design causes aluminium base
Material forms metallurgical binding face with aluminising material.Therefore, the aluminising of the suitable alumina-base material of the present invention, makes alumina-base material and aluminising material
Form metallurgical binding face.
2nd, it is embedding in alumina-base material in the aluminising due to a kind of alumina-base material of the present invention and inlay casting technique in aluminising and inlay casting
Increase by one of alumetizing process before casting from other aluminium alloy castingses so that alumina-base material forms metallurgical binding with other aluminium alloy castingses
Face, ensure that alumina-base material does not deform and come off under alternating hot and cold environment, not only easy to operate, the Er Qiecheng of such design
This low, use easy to spread.Therefore, the present invention is not only easy to operate, and cost is low, use easy to spread.
3rd, in the aluminising due to a kind of alumina-base material of the present invention and inlay casting technique before aluminising and inlay casting, to alumina-base material
Surface carries out shot-peening, to improve the roughness on alumina-base material surface, is invaded in addition, alumina-base material is placed in sodium hydroxide solution
Bubble, to remove the alumina layer on alumina-base material surface, such design improves the infiltration of alumina-base material and aluminising material liquation
Property, the inlay casting effect of alumina-base material is good.Therefore, the inlay casting effect of alumina-base material of the present invention is good.
Brief description of the drawings
Fig. 1 is 4032 wrought aluminium alloys in embodiments of the invention 4 and Mahlel74 aluminium alloy metallurgical binding faces show
It is intended to.
Embodiment
Invention is described in further detail below in conjunction with brief description of the drawings and embodiment.
Referring to Fig. 1, a kind of aluminising of alumina-base material and inlay casting technique, include selection and the alumina-base material surface of aluminising material
Activation process, the selection of the aluminising material refer to choose aluminising material, the alumina-base material surface work according to alumina-base material
Change processing, which refers to alumina-base material being placed in alkaline solution, soaks, and then takes out cleaning, dries；
The selection of the aluminising material after alumina-base material surface activation process with also including aluminising and inlay casting, the aluminising
Comprise the following steps successively with inlay casting：First by the aluminising melt material of selection, then aluminising material liquation is incubated, then will
The alumina-base material of surface activation process is heated, then alumina-base material is placed in aluminising material liquation and by above and below alumina-base material
Vibration, then the alumina-base material of taking-up is placed in mould and carries out cast with aluminising material liquation form casting, casting solidification
Metallurgical binding face is formed between alumina-base material and aluminising material afterwards, now, aluminising terminates with inlay casting.
In the aluminising and inlay casting, after aluminising melt material, then aluminising material liquation refined, degasification and slagging-off,
Then aluminising material liquation is incubated.
In the aluminising and inlay casting, the holding temperature of aluminising material liquation is higher than the fusing point of aluminising material 10 DEG C, aluminium base
The heating-up temperature of material is lower than the fusing point of alumina-base material 100 DEG C.
The aluminising is with inlay casting, alumina-base material being placed in aluminising material liquation and is by alumina-base material up-down vibration
Refer to：Alumina-base material is placed in aluminising material liquation and alumina-base material is done amplitude as 50 millimeters, frequency is 1 hertz upper and lower past
Multiple motion, after 30 to 60 seconds, take out alumina-base material.
In the selection of the aluminising material, aluminising material is chosen, the fusing point of aluminising material is less than the fusing point of alumina-base material.
The fusing point of the aluminising material is lower than the fusing point of alumina-base material 10 DEG C.
In the alumina-base material surface activation process, the surface of alumina-base material is first subjected to shot-peening, then alumina-base material is entered
Row ultrasonic wave is cleaned, and then alumina-base material is placed in sodium hydroxide solution and soaked, then alumina-base material is taken out and cleaned,
Dry, then alumina-base material is placed under sealed environment and preserved.
In the alumina-base material surface activation process, first pass through a diameter of 2 millimeters of shot and the surface of alumina-base material is entered
Row shot-peening, so that the surface roughness of alumina-base material is more than or equal to 6 microns, then alumina-base material is subjected to ultrasonic wave cleaning, then
Alumina-base material is placed in temperature as 80 DEG C, concentration is to be soaked 5 to 10 minutes in 20% sodium hydroxide solution, to remove aluminium base
Expect the alumina layer on surface.
After the alumina-base material takes out from sodium hydroxide solution, first alumina-base material is cleaned with pure water, then by aluminium
Sill drying is placed in vacuum bag.
The alumina-base material is 4032 wrought aluminium alloys, and aluminising material is Mahlel74 aluminium alloys.
The principle of the present invention is described as follows：
1st, a kind of aluminising of alumina-base material of the design and inlay casting technique be for a kind of piston aditus laryngis local enhancement technology and
Exploitation, the piston aditus laryngis local enhancement technology is by a kind of excellent aluminium base of high-temperature behavior of inlay casting at aluminum piston aditus laryngis
Expect to improve aluminum piston high-temperature behavior.The piston manufactured using the technology is referred to as casting type aditus laryngis enhancing aluminum piston, this kind of piston
One of inlay casting technique only need to be increased in existing aluminum piston production technology.Inlay casting technique is to manufacture the crucial skill of this kind of piston
Art, if alumina-base material does not form metallurgical binding face with aluminum piston body, causing piston, alumina-base material releases at work.
The thermal expansion system of alumina-base material and piston only aluminium alloy that inlay casting part uses in casting type aditus laryngis enhancing aluminum piston
Number has differences, and experiment shows, when alumina-base material does not form metallurgical binding with piston only, in simulation pistons work environment
Under, more serious deformation can occur for inlay casting part, and this deflection can be with the increase of the coefficient of thermal expansion differences of two kinds of storerooms
And increase.
Found during trial-production casting type aditus laryngis enhancing aluminum piston, alumina-base material at room temperature is directly placed into mould
During casting of piston, because larger degree of supercooling can be such that the piston alloy of cast is quickly cooled down when running into alumina-base material, so as in aluminium
Sill formed between piston only together with gap.By heating alumina-base material, reduce degree of supercooling, the big of gap can be reduced
It is small, but still can not make to form metallurgical binding between the two.When carrying out thermal shock fatigue test, using the manufacture of this technique
The aditus laryngis alumina-base material of casting type aditus laryngis enhancing aluminum piston can occur serious deformation and deviate from piston only.Because two kinds
There can be thermal expansion coefficient difference between different materials, this species diversity can form larger answer under violent alternating hot and cold environment
Power, so as to cause the deformation of material.Therefore, a kind of alumetizing process of suitable alumina-base material can be developed, makes aluminium base aditus laryngis aluminium base
Material forms metallurgical binding with piston, ensures that it does not deform and come off under alternating hot and cold environment.
2nd, aluminising and inlay casting：The maximum difficult point that aluminising is carried out to alumina-base material is the fusing point and aluminising material of alumina-base material
Fusing point is close, therefore during aluminising, the temperature of aluminising and the time of aluminising are just particularly important, if control is improper,
Can then alumina-base material be caused to melt.Meanwhile the relation between the fusing point of alumina-base material and the fusing point of aluminising material should meet aluminium base
The fusing point of material is higher than the fusing point of aluminising material.With JmatPro softwares, we can be obtained by the chemical composition of aluminium alloy
Its theoretical fusion temperature, it so can help us and suitable aluminising material is selected according to alumina-base material, it is preferred that aluminising material
The fusing point of material is lower than the fusing point of aluminium base part material 10 DEG C.
3rd, alumina-base material surface activation process：The surface of alumina-base material is generally turnery processing, and its surface roughness is 0.8
μm -1.2 μm, and the surface of alumina-base material has one layer of fine and close aluminum oxide, and these factors can all cause alumina-base material with oozing
The wellability of aluminum liquation, so to carry out surface activation process to alumina-base material before aluminising is carried out.
Embodiment 1：
At a kind of aluminising of alumina-base material and inlay casting technique, including the selection of aluminising material and alumina-base material surface active
Reason, the selection of the aluminising material after alumina-base material surface activation process with also including aluminising and inlay casting；
The selection of the aluminising material refers to choose aluminising material according to alumina-base material, and the fusing point of aluminising material is less than aluminium
The fusing point of sill；
The alumina-base material surface activation process comprises the following steps successively：The surface of alumina-base material is first subjected to shot-peening,
Alumina-base material is subjected to ultrasonic wave cleaning again, then alumina-base material is placed in sodium hydroxide solution and soaked, then by alumina-base material
Take out and cleaned, dried, then alumina-base material is placed under sealed environment and preserved, now, at alumina-base material surface active
Reason terminates；
The aluminising comprises the following steps successively with inlay casting：First by the aluminising melt material of selection, then aluminising material melted
Liquid is incubated, and is then heated the alumina-base material of surface activation process, then alumina-base material is placed in into aluminising material liquation
In and by alumina-base material up-down vibration, then the alumina-base material of taking-up is placed in mould and poured into a mould with aluminising material liquation
Casting is formed, metallurgical binding face is formed between alumina-base material and aluminising material after casting solidification, now, aluminising terminates with inlay casting.
Embodiment 2：
With embodiment 1, difference is substance：
In the aluminising and inlay casting, after aluminising melt material, then aluminising material liquation refined, degasification and slagging-off,
Then aluminising material liquation is incubated；
In the aluminising and inlay casting, the holding temperature of aluminising material liquation is higher than the fusing point of aluminising material 10 DEG C, aluminium base
The heating-up temperature of material is lower than the fusing point of alumina-base material 100 DEG C；
The aluminising is with inlay casting, alumina-base material being placed in aluminising material liquation and is by alumina-base material up-down vibration
Refer to：Alumina-base material is placed in aluminising material liquation and alumina-base material is done amplitude as 50 millimeters, frequency is 1 hertz upper and lower past
Multiple motion, after 30 to 60 seconds, take out alumina-base material.
Embodiment 3：
With embodiment 1, difference is substance：
The fusing point of the aluminising material is lower than the fusing point of alumina-base material 10 DEG C；
In the alumina-base material surface activation process, first pass through a diameter of 2 millimeters of shot and the surface of alumina-base material is entered
Row shot-peening, so that the surface roughness of alumina-base material is more than or equal to 6 microns, then alumina-base material is subjected to ultrasonic wave cleaning, then
Alumina-base material is placed in temperature as 80 DEG C, concentration is to be soaked 5 to 10 minutes in 20% sodium hydroxide solution, to remove aluminium base
Expect the alumina layer on surface, then alumina-base material taken out from sodium hydroxide solution and cleaned alumina-base material with pure water,
Then alumina-base material drying is placed in vacuum bag.
Embodiment 4：Alumina-base material is 4032 wrought aluminium alloys, and aluminising material is Mahlel74 aluminium alloys.
With embodiment 1, difference is substance：
。
The fusing point of 4032 wrought aluminium alloy is 570 DEG C, and the fusing point of Mahlel74 aluminium alloys is 560 DEG C（With
JmatPro softwares, Mahlel74 is not calculated by the chemical composition of Mahlel74 aluminium alloys and 4032 wrought aluminium alloys shown in table 1
The fusing point of aluminium alloy and 4032 wrought aluminium alloys）；
In the alumina-base material surface activation process, a diameter of 2 millimeters of shot is first passed through to 4032 wrought aluminium alloys
Surface carries out shot-peening, so that the surface roughness of 4032 wrought aluminium alloys is more than or equal to 6 microns, then 4032 wrought aluminium alloys is entered
Row ultrasonic wave cleans, and 4032 wrought aluminium alloys then is placed in into temperature for 80 DEG C, concentration is to be soaked in 20% sodium hydroxide solution
Bubble 8 minutes, to remove the alumina layer of 4032 wrought aluminum alloy surfaces, then by 4032 wrought aluminium alloys from sodium hydroxide solution
Take out and cleaned 4032 wrought aluminium alloys with pure water, then the drying of 4032 wrought aluminium alloys is placed in vacuum bag；
In the aluminising and inlay casting, first by the Mahlel74 aluminum alloy meltings of selection, then by Mahlel74 molten aluminium alloy
Refined, be incubated after degasification and slagging-off, now, the holding temperature of Mahlel74 molten aluminium alloy is 570 DEG C, then will
4032 wrought aluminium alloys of surface activation process are heated, and now, the heating-up temperature of 4032 wrought aluminium alloys is 470 DEG C, then
It is 50 millimeters to be placed in Mahlel74 molten aluminium alloy and 4032 wrought aluminium alloys is done amplitude 4032 wrought aluminium alloys, frequency
For 1 hertz pump, after 30 seconds, 4032 wrought aluminium alloys are taken out, then put 4032 wrought aluminium alloys of taking-up
In mould and carry out cast with Mahlel74 molten aluminium alloy and form casting, after casting solidification 4032 wrought aluminium alloys with
Metallurgical binding face is formed between Mahlel74 aluminium alloys（Referring to Fig. 1）.
Claims (8)
1. aluminising and the inlay casting technique of a kind of alumina-base material, include selection and the alumina-base material surface activation process of aluminising material,
The selection of the aluminising material refers to choose aluminising material according to alumina-base material, and the alumina-base material surface activation process refers to
Alumina-base material is placed in alkaline solution and soaked, cleaning is then taken out, dries, it is characterised in that：
The selection of the aluminising material with also including aluminising and inlay casting after alumina-base material surface activation process, the aluminising with it is embedding
Casting comprises the following steps successively：First by the aluminising melt material of selection, then aluminising material liquation is incubated, aluminising material melts
The holding temperature of liquid is higher than the fusing point of aluminising material 10 DEG C, is then heated the alumina-base material of surface activation process, aluminium base
The heating-up temperature of material is lower than the fusing point of alumina-base material 100 DEG C, then alumina-base material is placed in aluminising material liquation and makes aluminium base
Material does amplitude as 50 millimeters, and frequency is 1 hertz and pumped, and after 30 to 60 seconds, takes out alumina-base material, then will take
The alumina-base material gone out, which is placed in mould and carries out cast with aluminising material liquation, forms casting, and alumina-base material is with oozing after casting solidification
Metallurgical binding face is formed between aluminum, now, aluminising terminates with inlay casting.
2. aluminising and the inlay casting technique of a kind of alumina-base material according to claim 1, it is characterised in that：The aluminising with it is embedding
In casting, after aluminising melt material, then aluminising material liquation refined, degasification and slagging-off, then entered aluminising material liquation
Row insulation.
3. aluminising and the inlay casting technique of a kind of alumina-base material according to claim 1, it is characterised in that：The aluminising material
Selection in, choose aluminising material, the fusing point of aluminising material is less than the fusing point of alumina-base material.
4. aluminising and the inlay casting technique of a kind of alumina-base material according to claim 3, it is characterised in that：The aluminising material
Fusing point it is lower than the fusing point of alumina-base material 10 DEG C.
5. aluminising and the inlay casting technique of a kind of alumina-base material according to claim 3, it is characterised in that：The alumina-base material
In surface activation process, the surface of alumina-base material is first subjected to shot-peening, then alumina-base material is subjected to ultrasonic wave cleaning, then by aluminium
Sill, which is placed in sodium hydroxide solution, to be soaked, then alumina-base material is taken out and cleaned, is dried, and then puts alumina-base material
Preserved under sealed environment.
6. aluminising and the inlay casting technique of a kind of alumina-base material according to claim 5, it is characterised in that：The alumina-base material
In surface activation process, first pass through a diameter of 2 millimeters of shot and shot-peening is carried out to the surface of alumina-base material, so that alumina-base material
Surface roughness is more than or equal to 6 microns, then alumina-base material is carried out into ultrasonic wave cleaning, and alumina-base material then is placed in into temperature for 80
DEG C, concentration is to be soaked 5 to 10 minutes in 20% sodium hydroxide solution, to remove the alumina layer on alumina-base material surface.
7. aluminising and the inlay casting technique of a kind of alumina-base material according to claim 5, it is characterised in that：The alumina-base material
After being taken out from sodium hydroxide solution, first alumina-base material is cleaned with pure water, then alumina-base material drying is placed in vacuum
In bag.
8. aluminising and the inlay casting technique of a kind of alumina-base material according to claim 6 or 7, it is characterised in that：The aluminium base
Material is 4032 wrought aluminium alloys, and aluminising material is Mahlel74 aluminium alloys.
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