A kind of preparation method of multilayer corrosion-proof lightweight aluminium titanium composite panel
Technical field
The invention belongs to laminar composite preparing technical fields, and in particular to a kind of multilayer corrosion-proof lightweight aluminium titanium composite panel
Preparation method.
Background technology
Aluminum laminate titanium composite panel has the low-gravity of aluminium, the high temperature resistant of high-termal conductivity and titanium, corrosion resistant feature concurrently, therefore,
Aluminium-titanium composite panel can be widely applied to the fields such as Aeronautics and Astronautics and petrochemical industry.The method for preparing laminated composite plate at present has solid
Liquid is compound, Explosion composite, thermal diffusion are compound and Rolling compund.The cost of solid-liquid complex method is low, the bond strength of compound interface
Height, but when being used to prepare aluminium titanium composite panel, can only in the pure aluminum or aluminum alloy that titanium plate Coating a layer thickness is 0.5~2mm,
It is difficult to prepare the lightweight aluminium titanium composite panel in the compound one layer of thin titanium layer of surface of aluminum plate;The interface bond strength of Explosion composite method
Height when being used to prepare aluminium titanium composite panel, can adjust the thickness of titanium layer and aluminium layer, but the cost of Explosion composite method as needed
It is very high, limit its extensive use;Thermal diffusion complex method is adapted to mate with other methods and is used together, and thermal diffusion is used alone
When complex method prepares aluminium titanium composite panel, interface bond strength is very low;Rolling compund is that a kind of inexpensive, efficient stratiform is answered
The preparation method of plywood, but when high strength alumin ium alloy plate and the direct assembly of titanium plate are rolled, pass deformation is small, interface cohesion
Intensity is relatively low, it is difficult to prepare high performance aluminium titanium composite panel.Therefore it needs to be improved on the basis of prior art method,
Develop a kind of low cost, high efficiency, high interfacial bonding strength high-performance aluminum laminate titanium composite panel preparation method.
The present invention prepares the Problems Existing of aluminium titanium composite panel for Rolling compund method, provides a kind of " fine aluminium-LY12 aluminium
The preparation method of alloy-fine aluminium-pure titanium " multilayer composite sheet." fine aluminium-LY12 is prepared using large deformation composite technique for rolling first
Aluminium alloy-fine aluminium " clad aluminium, then clad aluminium and Titanium board are combined with each other using large deformation composite technique for rolling, from
And prepare " the pure titanium of fine aluminium-LY12 aluminium alloy-fine aluminiums-" multilayer composite sheet.In multilayer aluminum titanium composite panel, the aluminum layer of outer layer
The good performance of corrosion resistance is played in the medium respectively contacted respectively with pure titanium layer;Intermediate duralumin layer (LY12 aluminium alloys) rises and carries
The effect of high intensity;Intermediate aluminum layer can be realized respectively with duralumin layer and pure titanium layer it is preferable combine, as duralumin layer and
Excessive layer between pure titanium layer, can prevent when large deformation Rolling compund is processed interface cracked and cracking, improve interface cohesion
Intensity.
Invention content
The object of the present invention is to provide a kind of preparation sides of " the pure titanium of fine aluminium-LY12 aluminium alloy-fine aluminiums-" multilayer composite sheet
Method, which is characterized in that include the following steps:
(1) surface treatment on pure aluminum plate and LY12 aluminium alloy plates surface to be composite:Pure aluminum plate of the selection by annealing
With LY12 aluminium alloy plates, pure aluminum plate and LY12 aluminium alloy plates surface to be composite are polished using the method for mechanical grinding, it
Plank is stored in dry environment afterwards, and was used within 24 hours;
The riveting assembly of (2) three layers of aluminium sheet:Three aluminium sheets are subjected to four sides riveting assembly, assemble pattern is " fine aluminium-LY12
LY12 aluminium alloy plates are clipped in the middle by aluminium alloy-fine aluminium ", i.e. two blocks of pure aluminum plates;
(3) aluminum plate hot rolling is compound:One group of " fine aluminium-LY12 aluminium alloys-fine aluminium " plank for having organized base is put into nitrogen protection
It is heated in atmosphere heating furnace, it is great-deformation hot-rolled compound then to carry out single pass;
(4) smoothing of clad aluminium and cutting is sized:By " fine aluminium-LY12 aluminium alloys-fine aluminium " clad aluminium after hot rolling into
Row smoothing process, and cut being sized;
(5) annealing of Titanium board:Titanium board is made annealing treatment;
(6) surface treatment on clad aluminium and Titanium board surface to be composite:Take clad aluminium and by the pure of annealing
Clad aluminium and Titanium board surface to be composite using the method for mechanical grinding are polished, are then stored in plank by titanium plate
In dry environment, and used within 24 hours.
(7) the riveting assembly of clad aluminium and Titanium board:Clad aluminium and Titanium board are subjected to four sides riveting assembly, assembly
Mode is " clad aluminium-pure titanium-pure titanium-clad aluminium ", i.e., including pure titanium layer, aluminium layer outside, applies between two Titanium boards
Last layer talcum powder prevents the bonding between Titanium board;
(8) aluminium titanium composite panel Rolling compund:One group of " clad aluminium-pure titanium-pure titanium-clad aluminium " plank of base will be organized
It is put into nitrogen protection atmosphere heating furnace and is heated, then carry out single pass large deformation Rolling compund;
(9) aluminium titanium composite panel is smoothed:One group of aluminium titanium composite panel after rolling is dismantled, school is carried out to individual aluminium titanium composite panel
It is flat;
(10) it cuts and is sized:Aluminium titanium composite panel after smoothing is cut and is sized, obtains finished product plank.
The thickness of pure aluminum plate is 0.5~1mm in the step (1), and the thickness of LY12 aluminium alloy plates is 9~12mm.
420~460 DEG C of clad aluminium heating temperature in the step (3) keeps the temperature 1~5 hour, pass deformation 60%
~75%.
The thickness of Titanium board is 0.5~1mm in the step (5), and annealing process is:Vacuum degree≤1 × 10-2Pa, annealing
Temperature is 650~750 DEG C, keeps the temperature 1~1.5 hour, furnace cooling.
420~460 DEG C of aluminium titanium composite panel heating temperature in the step (8) keeps the temperature 1~5 hour, and single pass large deformation is rolled
It is 60%~75% to make compound pass deformation.
Beneficial effects of the present invention are:1. fine aluminium meal, LY12 aluminium alloy plates and Titanium board are compounded in using rolling mill practice
Together, multilayer aluminum titanium composite panel is prepared, not only with good corrosion resistance and higher intensity, but also realizes lightweight, will be had
Have broad application prospects;2. it is 1~2mm multilayer aluminum titanium composite panels to be suitable for producing aluminium titanium composite panel, particularly thickness in batches
The preparation processing of thin plate.
Description of the drawings
Fig. 1 is the preparation technology flow chart of multilayer corrosion-proof lightweight aluminium titanium composite panel.
Specific embodiment
The present invention provides a kind of preparation methods of multilayer corrosion-proof lightweight aluminium titanium composite panel, below by attached drawing and specifically real
Applying mode, the present invention will be further described.
Embodiment 1
Preparation technology flow chart according to figure 1, thickness are as follows for the preparation process of 1mm aluminium titanium composite panels:
(1) surface treatment on pure aluminum plate and LY12 aluminium alloy plates surface to be composite:Pure aluminum plate of the selection by annealing
With LY12 aluminium alloy plates, pure aluminum plate specification is 1050 × 1050 × 1mm, aluminium alloy LY12 plate gauges lattice for 1050 × 1050 ×
12mm;Pure aluminum plate and LY12 aluminium alloy plates surface to be composite are polished, and clean out using the method for mechanical grinding, beaten
Plank after mill preserves in a dry environment, and is used within 24 hours;
The riveting assembly of (2) three layers of aluminium sheet:Three aluminium sheets are subjected to four sides riveting assembly, assemble pattern is " fine aluminium-LY12
LY12 aluminium alloy plates are clipped in the middle by aluminium alloy-fine aluminium ", i.e. two blocks of pure aluminum plates;
(3) aluminum plate hot rolling is compound:One group of " fine aluminium-LY12 aluminium alloys-fine aluminium " plank for having organized base is put into nitrogen protection
It is heated to 460 DEG C in atmosphere heating furnace, keeps the temperature 1 hour, then carry out great-deformation hot-rolled compound, the deflection of single pass is
75%, after rolling, clad aluminium thickness is 3.5mm;
(4) smoothing of clad aluminium and cutting is sized, compound to " fine aluminium-LY12 aluminium alloys-fine aluminium " after hot rolling
Plate carries out smoothing process, and cuts and be sized to 900 × 1000mm;
(5) annealing of Titanium board:The specification of Titanium board is 900 × 1000 × 0.5mm, and annealing process is:Vacuum degree
≤1×10-2Pa, annealing temperature are 750 DEG C, keep the temperature 1 hour, furnace cooling;
(6) surface treatment on clad aluminium and Titanium board surface to be composite:The clad aluminium and pure for annealing of learning from else's experience
Clad aluminium and Titanium board surface to be composite with the method for mechanical grinding are polished, are later stored in plank dry by titanium plate
In dry environment, and used within 24 hours;
(7) assembly of clad aluminium and Titanium board:Clad aluminium and Titanium board are subjected to four sides riveting assembly, assemble pattern
For " clad aluminium-pure titanium-pure titanium-clad aluminium ", i.e., including pure titanium layer, aluminium layer outside, one is coated between two Titanium boards
Layer talcum powder, prevents the bonding between Titanium board;
(8) aluminium titanium composite panel Rolling compund:One group of " clad aluminium-pure titanium-pure titanium-clad aluminium " plank of base will be organized
It is put into nitrogen protection atmosphere heating furnace and is heated to 460 DEG C, keep the temperature 1 hour, then carry out large deformation Rolling compund, single pass
Deflection is 75%.After rolling, the overall thickness of assembly " clad aluminium-pure titanium-pure titanium-clad aluminium " becomes 2mm, individual
Compound plate thickness is 1mm;
(9) aluminium titanium composite panel is smoothed:One group of aluminium titanium composite panel after rolling is dismantled, is then 1mm's to single thickness
Aluminium titanium composite panel is smoothed;
(10) it cuts and is sized, the aluminium titanium composite panel after smoothing is cut and is sized, obtains finished product plank.
Embodiment 2
Preparation technology flow chart according to figure 1, thickness are as follows for the preparation process of 2mm aluminium titanium composite panels:
(1) surface treatment on pure aluminum plate and LY12 aluminium alloy plates surface to be composite:Pure aluminum plate of the selection by annealing
With LY12 aluminium alloy plates, pure aluminum plate specification is 1050 × 1050 × 0.5mm, aluminium alloy LY12 plate gauges lattice for 1050 × 1050 ×
9mm;Pure aluminum plate and LY12 aluminium alloy plates surface to be composite are polished, and clean out using the method for mechanical grinding, beaten
Plank after mill preserves in a dry environment, and is used within 24 hours;
The riveting assembly of (2) three layers of aluminium sheet:Three aluminium sheets are subjected to four sides riveting assembly, assemble pattern is " fine aluminium-LY12
LY12 aluminium alloy plates are clipped in the middle by aluminium alloy-fine aluminium ", i.e. two blocks of pure aluminum plates;
(3) aluminum plate hot rolling is compound:One group of " fine aluminium-LY12 aluminium alloys-fine aluminium " plank for having organized base is put into nitrogen protection
It is heated to 420 DEG C in atmosphere heating furnace, keeps the temperature 5 hours, then carry out great-deformation hot-rolled compound, the deflection of single pass is
60%, after rolling, clad aluminium thickness is 4mm;
(4) smoothing of clad aluminium and cutting is sized, compound to " fine aluminium-LY12 aluminium alloys-fine aluminium " after hot rolling
Plate carries out smoothing process, and cuts and be sized to 900 × 1000mm;
(5) annealing of Titanium board:The specification of Titanium board is 900 × 1000 × 1mm, and annealing process is:Vacuum degree≤1
×10-2Pa, annealing temperature are 650 DEG C, keep the temperature 1.5 hours, furnace cooling;
(6) surface treatment on clad aluminium and Titanium board surface to be composite:The clad aluminium and pure for annealing of learning from else's experience
Clad aluminium and Titanium board surface to be composite with the method for mechanical grinding are polished, are later stored in plank dry by titanium plate
In dry environment, and used within 24 hours;
(7) assembly of clad aluminium and Titanium board:Clad aluminium and Titanium board are subjected to four sides riveting assembly, assemble pattern
For " clad aluminium-pure titanium-pure titanium-clad aluminium ", i.e., including pure titanium layer, aluminium layer outside, one is coated between two Titanium boards
Layer talcum powder, prevents the bonding between Titanium board;
(8) aluminium titanium composite panel Rolling compund:One group of " clad aluminium-pure titanium-pure titanium-clad aluminium " plank of base will be organized
It is put into nitrogen protection atmosphere heating furnace and is heated to 420 DEG C, keep the temperature 5 hours, then carry out large deformation Rolling compund, single pass
Deflection is 60%.After rolling, the overall thickness of assembly " clad aluminium-pure titanium-pure titanium-clad aluminium " becomes 4mm, individual
Aluminium titanium composite panel thickness is 2mm;
(9) aluminium titanium composite panel is smoothed:One group of aluminium titanium composite panel after rolling is dismantled, is then 2mm's to single thickness
Aluminium titanium composite panel is smoothed;
(10) it cuts and is sized, the aluminium titanium composite panel after smoothing is cut and is sized, obtains finished product plank.