A kind of preparation method of multilayer corrosion-proof lightweight aluminium titanium composite panel
Technical field
The invention belongs to laminar composite preparing technical field, 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 high temperature resistant of low-gravity, high-termal conductivity and the titanium of aluminium, corrosion resistant feature concurrently, therefore,
Aluminium-titanium composite panel can be widely applied to the fields such as Aeronautics and Astronautics and petrochemical industry.Preparing the method for laminated composite plate at present has solid
Liquid is compound, Explosion composite, thermal diffusion are compound and Rolling compund.The low cost of solid-liquid complex method, the bond strength of compound interface
Height, but for preparing during 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 that one layer of thin titanium layer is combined in surface of aluminum plate;The interface bond strength of Explosion composite method
Height, for preparing during aluminium titanium composite panel, can as needed adjust the thickness of titanium layer and aluminium lamination, but the cost of Explosion composite method
It is very high, limit its extensive application;Thermal diffusion complex method is adapted to mate with additive method 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 little, interface cohesion
Intensity is relatively low, it is difficult to prepare high performance aluminium titanium composite panel.Therefore need to be improved on the basis of existing process method,
Develop a kind of low cost, high efficiency, the preparation method of the high-performance aluminum laminate titanium composite panel of high interfacial bonding strength.
The present invention prepares the Problems Existing of aluminium titanium composite panel for Rolling compund method, there is provided a kind of " fine aluminium-LY12 aluminium
The preparation method of alloy-fine aluminium-pure titanium " multilayer composite sheet." fine aluminium-LY12 is prepared initially with large deformation composite technique for rolling
Aluminium alloy-fine aluminium " clad aluminium, then clad aluminium is combined with each other with Titanium board 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 of respective contact respectively with pure titanium layer;Middle duralumin layer (LY12 aluminium alloys) rises and carries
The effect of high intensity;Middle aluminum layer can be realized respectively preferably combining with duralumin layer and pure titanium layer, as duralumin layer and
Excessive layer between pure titanium layer, can prevent crackle and cracking occur in large deformation Rolling compund plus man-hour interface, improve interface cohesion
Intensity.
The content of the invention
It is an object of the invention to provide a kind of preparation side of " the pure titanium of fine aluminium-LY12 aluminium alloy-fine aluminiums-" multilayer composite sheet
Method, it is characterised in that comprise the steps:
(1) surface treatment on pure aluminum plate and LY12 aluminium alloy plates surface to be composite:Select the pure aluminum plate through 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
Sheet material 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 carried out into four sides riveting assembly, assemble pattern is " fine aluminium-LY12
Block pure aluminum plate of aluminium alloy-fine aluminium ", i.e., two is clipped in the middle LY12 aluminium alloy plates;
(3) aluminum plate hot rolling is combined:One group of " fine aluminium-LY12 aluminium alloys-fine aluminium " sheet material for having organized base is put into nitrogen protection
Heated in atmosphere heating furnace, then carried out single pass great-deformation hot-rolled compound;
(4) smoothing of clad aluminium and cutting is sized:" fine aluminium-LY12 aluminium alloys-fine aluminium " composite plate after hot rolling is carried out
Smoothing process, and carry out cutting 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 through the pure of annealing
Titanium plate, is polished clad aluminium and Titanium board surface to be composite using the method for mechanical grinding, is then stored in sheet material
In dry environment, and used within 24 hours.
(7) the riveting assembly of clad aluminium and Titanium board:Clad aluminium and Titanium board are carried out into four sides riveting assembly, assembly
Mode is " clad aluminium-pure titanium-pure titanium-clad aluminium ", i.e., including pure titanium layer, aluminium lamination outside, is applied 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 " sheet material of base will have been organized
It is put into nitrogen protection atmosphere heating furnace and is heated, then carries out single pass large deformation Rolling compund;
(9) aluminium titanium composite panel smoothing:One group of aluminium titanium composite panel after by rolling is taken apart, and to individual aluminium titanium composite panel school is carried out
It is flat;
(10) cut and be sized:Aluminium titanium composite panel after smoothing is cut and is sized, obtain finished product sheet material.
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-up temperature in the step (3), is incubated 1~5 hour, and pass deformation is 60%
~75%.
The thickness of Titanium board is 0.5~1mm in the step (5), and annealing process is:Vacuum≤1 × 10-2Pa, annealing
Temperature is 650~750 DEG C, is incubated 1~1.5 hour, along with the furnace cooling.
420~460 DEG C of aluminium titanium composite panel heating-up temperature in the step (8), is incubated 1~5 hour, and single pass large deformation is rolled
The compound pass deformation of system is 60%~75%.
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, both with good corrosion resistance and higher intensity, lightweight is realized again, 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 invention provides a kind of preparation method of multilayer corrosion-proof lightweight aluminium titanium composite panel, below by accompanying drawing and specifically real
The present invention will be further described to apply mode.
Embodiment 1
Preparation technology flow chart according to Fig. 1, thickness is 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:Select the pure aluminum plate through annealing
With LY12 aluminium alloy plates, pure aluminum plate specification be 1050 × 1050 × 1mm, aluminium alloy LY12 plate gauges lattice be 1050 × 1050 ×
12mm;Pure aluminum plate and LY12 aluminium alloy plates surface to be composite are polished using the method for mechanical grinding, and is cleaned out, beaten
Sheet material after mill is preserved in a dry environment, and is used within 24 hours;
The riveting assembly of (2) three layers of aluminium sheet:Three aluminium sheets are carried out into four sides riveting assembly, assemble pattern is " fine aluminium-LY12
Block pure aluminum plate of aluminium alloy-fine aluminium ", i.e., two is clipped in the middle LY12 aluminium alloy plates;
(3) aluminum plate hot rolling is combined:One group of " fine aluminium-LY12 aluminium alloys-fine aluminium " sheet material for having organized base is put into nitrogen protection
It is heated to 460 DEG C in atmosphere heating furnace, is incubated 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, and " fine aluminium-LY12 aluminium alloys-fine aluminium " after hot rolling is combined
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
≤1×10-2Pa, annealing temperature is 750 DEG C, is incubated 1 hour, along with the furnace cooling;
(6) surface treatment on clad aluminium and Titanium board surface to be composite:The clad aluminium and pure of annealing of learning from else's experience
Titanium plate, is polished clad aluminium and Titanium board surface to be composite with the method for mechanical grinding, is afterwards stored in sheet material dry
In dry environment, and used within 24 hours;
(7) assembly of clad aluminium and Titanium board:Clad aluminium and Titanium board are carried out into four sides riveting assembly, assemble pattern
For " clad aluminium-pure titanium-pure titanium-clad aluminium ", i.e., including pure titanium layer, aluminium lamination outside, between two Titanium boards one is coated
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 " sheet material of base will have been organized
It is put into nitrogen protection atmosphere heating furnace and is heated to 460 DEG C, be incubated 1 hour, then carries out large deformation Rolling compund, single pass
Deflection is 75%.After rolling, the gross thickness of assembly " clad aluminium-pure titanium-pure titanium-clad aluminium " is changed into 2mm, individual
Compound plate thickness is 1mm;
(9) aluminium titanium composite panel smoothing:One group of aluminium titanium composite panel after by rolling is taken apart, then to single thickness for 1mm's
Aluminium titanium composite panel is smoothed;
(10) cut and be sized, the aluminium titanium composite panel after smoothing is cut and is sized, obtain finished product sheet material.
Embodiment 2
Preparation technology flow chart according to Fig. 1, thickness is 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:Select the pure aluminum plate through annealing
With LY12 aluminium alloy plates, pure aluminum plate specification be 1050 × 1050 × 0.5mm, aluminium alloy LY12 plate gauges lattice be 1050 × 1050 ×
9mm;Pure aluminum plate and LY12 aluminium alloy plates surface to be composite are polished using the method for mechanical grinding, and is cleaned out, beaten
Sheet material after mill is preserved in a dry environment, and is used within 24 hours;
The riveting assembly of (2) three layers of aluminium sheet:Three aluminium sheets are carried out into four sides riveting assembly, assemble pattern is " fine aluminium-LY12
Block pure aluminum plate of aluminium alloy-fine aluminium ", i.e., two is clipped in the middle LY12 aluminium alloy plates;
(3) aluminum plate hot rolling is combined:One group of " fine aluminium-LY12 aluminium alloys-fine aluminium " sheet material for having organized base is put into nitrogen protection
It is heated to 420 DEG C in atmosphere heating furnace, is incubated 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, and " fine aluminium-LY12 aluminium alloys-fine aluminium " after hot rolling is combined
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≤1
×10-2Pa, annealing temperature is 650 DEG C, is incubated 1.5 hours, along with the furnace cooling;
(6) surface treatment on clad aluminium and Titanium board surface to be composite:The clad aluminium and pure of annealing of learning from else's experience
Titanium plate, is polished clad aluminium and Titanium board surface to be composite with the method for mechanical grinding, is afterwards stored in sheet material dry
In dry environment, and used within 24 hours;
(7) assembly of clad aluminium and Titanium board:Clad aluminium and Titanium board are carried out into four sides riveting assembly, assemble pattern
For " clad aluminium-pure titanium-pure titanium-clad aluminium ", i.e., including pure titanium layer, aluminium lamination outside, between two Titanium boards one is coated
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 " sheet material of base will have been organized
It is put into nitrogen protection atmosphere heating furnace and is heated to 420 DEG C, be incubated 5 hours, then carries out large deformation Rolling compund, single pass
Deflection is 60%.After rolling, the gross thickness of assembly " clad aluminium-pure titanium-pure titanium-clad aluminium " is changed into 4mm, individual
Aluminium titanium composite panel thickness is 2mm;
(9) aluminium titanium composite panel smoothing:One group of aluminium titanium composite panel after by rolling is taken apart, then to single thickness for 2mm's
Aluminium titanium composite panel is smoothed;
(10) cut and be sized, the aluminium titanium composite panel after smoothing is cut and is sized, obtain finished product sheet material.