CN207535415U - It is a kind of for the symmetrical assembly of the titanium steel composite board rolled entirely - Google Patents
It is a kind of for the symmetrical assembly of the titanium steel composite board rolled entirely Download PDFInfo
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- CN207535415U CN207535415U CN201721315714.7U CN201721315714U CN207535415U CN 207535415 U CN207535415 U CN 207535415U CN 201721315714 U CN201721315714 U CN 201721315714U CN 207535415 U CN207535415 U CN 207535415U
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Abstract
The utility model discloses a kind of for the symmetrical assembly of the titanium steel composite board rolled entirely, including upper strata steel plate (1), lower floor's steel plate (2), upper strata titanium plate (3) and lower floor's titanium plate (4)；Upper strata steel plate (1) and lower floor's steel plate (2) are interlocked；The upper strata steel plate (1) and the corresponding position of lower floor's steel plate (2) offer groove milling (9) respectively, two groove millings (9) it is equal in magnitude；The upper strata titanium plate (3) and lower floor's titanium plate (4) are respectively placed in the groove milling (9) of the upper strata steel plate (1) and lower floor's steel plate (2).It the groove milling of this symmetrical assembly and emits buckle structure and can effectively prevent composite plate blank weld cracking in the hot rolling, base material and cover the high-temperature oxydation problem that material misplaces and thus brings, the bond strength of composite plate can be not only improved, but also the lumber recovery of full rolled section steel titanium composite panel can be increased substantially.
Description
Technical field
It is particularly a kind of for the symmetrical of the titanium steel composite board that rolls entirely the utility model is related to ply-metal field
Assembly.
Background technology
In recent years, the maximization of the minimum, benefit of metal material cost is realized using limited resource, so as to fulfill can
Sustainable development has become the focus of global concern.Titanium steel composite material makes performance difference extremely outstanding as a kind of neonatal material
Different titanium and steel realize metallurgical binding, can not only play the high intensity, high tenacity, low-cost advantage of steel, but also can make full use of
The good corrosion resistance of titanium, the overall performance for significantly improving material is horizontal, has in industries such as petrochemical industry, ship, ocean engineerings
Very wide application prospect.At present, steel-titanium composite panel mainly uses explosion composite method, Direct Rolling composite algorithm, explodes+rolls
Prepared by preparation method, there is the characteristics of respective.Full roll-bonding method has good plate shape, higher production efficiency, low dirt
The features such as dye, low energy consumption, wide cut composite plate can be especially produced, is the developing direction of following steel-titanium composite panel.
In order to improve production efficiency, the complete symmetrical assembling mode of rolling generally use slab.Since titanium heats in air
It very easily aoxidizes, usually titanium is placed in inside blank, and require to carry out vacuum sealing using vacuum seal technology, with
Ensure the integrality of slab, therefore blank packaging technology is one of critical process of full rolled section steel-titanium composite panel.At present, it closes
A large amount of research work is carried out in the production technology country of full rolled section steel titanium composite panel.(the publication number CN of patent document 1
A kind of anti-oxidation assembly technique of hot rolling titanium/steel composite board 205167719U) is disclosed, steel plate component is connect with lateral plate component
The closing cuboid with a chamber is formed, titanium plate component is located in the chamber of closing cuboid and passes through inoxidzable coating and envelope
It closes cuboid inner surface to be connected, steel plate component and titanium plate component are symmetrical structure.Patent document 2 (104801867 A of CN) is public
A kind of manufacturing method for the blank for being used to produce steel titanium composite panel is opened, assembly technique is places steel billet around titanium blank
Material, wherein it is base-material on steel blank to be contacted with titanium blank upper surface, it is base-material under steel blank to be contacted with titanium blank lower surface,
It is steel blank strip of paper used for sealing along the setting of titanium blank circumferential direction, base-material and steel blank strip of paper used for sealing under base-material, steel blank on the steel blank
A relatively closed space is formed, the titanium blank is arranged in the relatively closed space, on the titanium charge length direction
Both ends and steel blank strip of paper used for sealing between have gap, by all faying face edges welded seal of the assembly blank after sizing.
It is not difficult to find out that traditional assembly technique is all the simple superposition of base material and coating, while increases lateral plate structure from above invention, and
Carry out soldering and sealing.Since in the operation of rolling, especially in the large-sized rolling mills operation of rolling, blank can be by larger shearing force with squeezing
Pressure, the weld seam of soldering and sealing easily crack.Above-mentioned assemble pattern is essentially the common superposition of plank, the blank assembled according to the technique
Once weld cracking may result in base material and cover the dislocation of material, air can also aoxidize titanium after entering, and become a useful person so as to reduce
Rate.Therefore, efficient blank packaging technology also needs to be further improved.
Utility model content
The purpose of this utility model is to provide a kind of for the symmetrical assembly of the titanium steel composite board rolled entirely, rolling is solved
The weld seam of titanium steel blank soldering and sealing easily cracks, base material and covers material easily dislocation the problem of titanium is caused to aoxidize in the process.
After rolling refers to that the symmetrical assembly of titanium steel composite board completes entirely in the application, directly rolled, do not had
Other processes.
To achieve the above object, the utility model discloses a kind of for the symmetrical assembly of the titanium steel composite board rolled entirely,
Including upper strata steel plate, lower floor's steel plate, upper strata titanium plate and lower floor's titanium plate；
Upper strata steel plate and lower floor's steel plate are interlocked；Upper strata steel plate and the corresponding position of lower floor's steel plate offer groove milling respectively,
Two groove millings it is equal in magnitude；
Upper strata titanium plate and lower floor's titanium plate are respectively placed in the groove milling of upper strata steel plate and lower floor's steel plate.
Upper strata steel plate and lower floor's steel plate are dismountable connection mode, for rolling the separation for completing latter two composite plate,
And the mode fastened is simple in structure, easily operated and easy to process；Titanium plate is placed in groove milling, titanium plate is placed and is aoxidized.
Further, the centre position of the composite surface of upper strata steel plate and lower floor's steel plate offers groove milling；Upper strata steel plate is answered
The one end in conjunction face is machined with protrusion, and other end processing is fluted；Correspondingly one end of the composite surface of lower floor's steel plate is machined with recessed
Slot, the other end are machined with protrusion.
Groove milling is opened in centre position so that is not easy to contact with extraneous air when titanium plate is placed in groove milling, be not easy
It is aoxidized；And the protrusion and groove of levels steel plate cooperate, and realize and fasten, are readily disassembled, and can guarantee good sealing
Effect.
Further, weld seam is both provided at upper strata steel plate and lower floor's steel plate surrounding docking location, is welded by vacuum sealing
Mode weld.
Vacuum-packed welding manner causes will not have oxygen to contact titanium plate during welding, ensures that titanium plate will not be oxidized, together
When the mode welded can ensure that levels steel plate will not directly generate dislocation in the operation of rolling, ensure that the composite plate that rolling is completed is complete
It is exactly the same.
Further, the depth of groove milling is less than 10mm；Protrusion and the height of groove are less than 5mm.
Titanium plate is placed in groove milling, while which ensures to place titanium plate, will not break the intensity of meeting steel plate, ensures that rolling is completed
Composite plate rigidity and intensity；Protrusion and the height of groove can ensure the fastening of levels steel plate, while do not destroy steel plate
Overall structure, ensure that the intensity of composite plate does not weaken.
Further, protrusion and groove are one or more groups of.
According to steel plate and the size and seal request of titanium plate, it can select to set multigroup protrusion and groove, ensure titanium plate
Levels steel plate will not misplace in sealing effect and the operation of rolling.
Further, protrusion is cylindrical or cuboid, and groove is blind round hole or cuboid blind hole, protrusion and
Groove is distributed on four angles of the composite surface of upper strata steel plate and lower floor's steel plate, and protrusion and number of recesses are two, and one
It is protrusion in diagonal positions, another diagonal positions is groove.
Cornerwise arrangement ensures that same groove vicinity is all protrusion, while is all groove around same protrusion, this
Even if one, sample misplaces between protrusion and groove, but surrounding protrusion and groove will not misplace simultaneously, can
Ensure leakproofness and regularity to greatest extent.
Further, protrusion is cylindrical or cuboid, and groove is blind round hole or cuboid blind hole, protrusion and
Groove is set as the two rows at composite surface both ends, the protrusion and groove interlaced arrangement often arranged.
Two rows of protrusions and groove, and the mode of interlaced arrangement can ensure the sealing performance of titanium plate in the operation of rolling, titanium
Plate is not contacted with air, and then will not be oxidized, while ensures to misplace between levels steel plate.
Further, protrusion is cuboid, and groove is cuboid slot, and protrusion and groove are located at the both ends of composite surface respectively,
And protrusion and groove are through the whole length direction of upper strata steel plate and lower floor's steel plate.
When protrusion and groove reversed through the whole length of levels steel plate, the installation matching of levels steel plate can be held very much
Easily, it is easily installed, and is readily disassembled after the completion of rolling.
Further, it is provided with separation layer between upper strata titanium plate and lower floor's titanium plate.
The presence of separation layer can discharge the gas between two layers of titanium plate, prevent titanium plate from being aoxidized, while separation layer can
It prevents from being bonded to each other too tightly between titanium plate during rolling, be not readily separated, separation layer is dismantled easily between may be such that composite plate.
Further, separation layer is organic material.Organic material is cheap material, and is easy to get, such energy
When enough completing the effect of separation layer isolation, the cost of rolling is reduced.
The utility model has the advantage that：
(1) using groove milling and the design of buckle structure is emitted, it is simple in structure without increasing lateral plate structure during assembly；
(2) groove milling and emit buckle structure can effectively prevent composite plate blank weld cracking in the hot rolling, base material with
Material dislocation and the high-temperature oxydation problem thus brought are covered, can not only improve the bond strength of composite plate, but also can be substantially
Degree improves the lumber recovery of full rolled section steel titanium composite panel.
Other feature and advantage of the utility model will illustrate, also, partial from specification in the following description
In become apparent or understood by implementing the utility model.The purpose of this utility model and other advantages can pass through
Specifically noted structure is realized and is obtained in the specification, claims and attached drawing write.
Description of the drawings
Attached drawing is only used for showing the purpose of specific embodiment, and is not considered as the limitation to the utility model, entire
In attached drawing, identical reference mark represents identical component.
Fig. 1 is the overall structure diagram of the symmetrical assembly of the titanium steel composite board of the utility model；
Fig. 2 is the vertical view of lower floor's steel plate of the utility model.
Figure label：1- upper stratas steel plate, 2- lower floors steel plate, 3- upper stratas titanium plate, 4- lower floors titanium plate, 5- protrusions, 6- grooves,
7- vacuum sealings weld seam, 8- separation layers, 9- groove millings.
Specific embodiment
The preferred embodiment of the utility model is specifically described below in conjunction with the accompanying drawings, wherein, attached drawing forms the application one
Divide, and be used to illustrate the principle of the utility model together with the embodiment of the utility model.
The utility model discloses a kind of for the symmetrical assembly of the titanium steel composite board rolled entirely, as shown in Fig. 1, including
Upper strata steel plate 1, lower floor's steel plate 2, upper strata titanium plate 3 and lower floor's titanium plate 4.
The face of upper strata steel plate 1 and the opposite installation of lower floor's steel plate 2, upper strata steel plate 1 and the opposite splicing of lower floor's steel plate 2 is as compound
Face.Upper strata titanium plate 3 and the opposite splicing of lower floor's titanium plate 4 are placed in the groove milling 9 of upper strata steel plate 1 and lower floor's steel plate 2, such upper strata titanium
Plate 3 and lower floor's titanium plate 4 are wrapped up by upper strata steel plate 1 and lower floor's steel plate 2, be can effectively prevent and are aoxidized.
As shown in Fig. 2, the centre of the composite surface of lower floor's steel plate 2 offers groove milling 9, for placing titanium plate, the depth of groove milling 9
Less than 10mm, which does not increase the workload of processing in the condition for meeting rolling demand；The both ends of composite surface process respectively
There are one protrusion 5 and a grooves 6, emit the height of button less than 5mm, for further stablizing blank, while the height does not increase
The workload of processing.
The structure and lower floor's steel plate 2 of upper strata steel plate 1 match, and the centre of the composite surface of upper strata steel plate 1 is provided with and lower floor's steel
The identical groove milling 9 of plate 2, for placing titanium plate, the depth of groove milling 9 is less than 10mm；Both ends are machined with and 2 phase of lower floor steel plate respectively
The protrusion 5 of cooperation and groove 6 emit the height of button less than 5mm, for further stablizing blank.
The upper strata steel plate 1 and lower floor's steel plate 2 of this symmetrical assembly are opposite to be installed, specifically, the protrusion 5 of upper strata steel plate 1 buckles into
The groove 6 of lower floor's steel plate 2, while the protrusion 5 of lower floor's steel plate 2 buckles into the groove milling of the groove 6, at this moment upper strata steel plate 1 of upper strata steel plate 1
9 and lower floor's steel plate 2 groove milling 9 it is opposite.
Upper strata titanium plate 3 and the opposite splicing of lower floor's titanium plate 4, after rolling, upper strata steel plate 1 and the rolling of upper strata titanium plate 3 are
One composite plate, lower floor's steel plate 2 and the rolling of lower floor's titanium plate 4 are a composite plate, need to detach after the completion of two composite plate rollings,
Therefore separation layer 8 is provided between upper strata titanium plate 3 and lower floor's titanium plate 4, for by upper strata titanium plate 3 and lower floor's titanium plate 4 carry out every
From, while separation layer 8 can prevent titanium plate from being aoxidized.
It in order to fully realize the isolation between titanium plate, while prevents from being aoxidized, intermediate isolating layer 8 can be organic material, use
The separation of upper and lower layer composite plate after rolling.
To cause symmetrical assembly up-down structure symmetrical, upper strata titanium plate 3 and lower floor's titanium plate 4 are two pieces of identical titanium plates,
The size of upper strata titanium plate 3 and lower floor's titanium plate 4 and the size of groove milling 9 match, specifically, the width of upper strata titanium plate 3 and lower floor's titanium plate 4
For the width of groove milling 9, thickness is the height of groove milling 9, and length is identical with the length of groove milling 9, and such upper strata titanium plate 3 and lower floor's titanium plate 4 are
It is mountable in groove milling 9.
Optionally, to further enhance sealing performance, titanium plate is avoided to be aoxidized, protrusion 5 and groove 6 can be provided with more
Group, it is multigroup in the case of air is more difficult enters groove milling 9, air will not contact with titanium plate, and such titanium plate can avoid being aoxidized,
Even if the operation of rolling, without filtering steel plate deformed, emit buckle structure and be destroyed.
In one embodiment of the application, protrusion 5 is cylindrical or cuboid, and groove 6 is blind round hole or length
Cube shape blind hole, optionally, protrusion 5 and groove 6 are distributed on four angles of upper strata steel plate 1 and lower floor's steel plate 2, and raised 5 Hes
6 quantity of groove is two, and is protrusion 5 in a diagonal positions, another diagonal positions is groove 6.It is optional again, it is convex
Rise 5 and groove 6 be set as two rows at composite surface both ends, 6 interlaced arrangement of the protrusion 5 often arranged and groove, i.e., according to raised 5, recessed
Slot 6, protrusion 5, the arrangement of the sequence of groove 6, can ensure sealing performance in this way, substrate and cover material and will not misplace during rolling.
In another embodiment of the application, protrusion 5 is cuboid, and groove 6 is cuboid slot, and protrusion 5 and groove 6 divide
Not Wei Yu composite surface both ends or both sides, and protrusion 5 and groove 6 are through the whole length side of upper strata steel plate 1 and lower floor's steel plate 2
To.This raised 5 and 6 machine direction of groove, and while installing be easy to be aligned, be not easy to misplace.
It is positioned in groove milling 9 after upper strata titanium plate 3 and the opposite splicing of lower floor's titanium plate 4, upper strata steel plate 1 and lower floor's steel plate 2 is detained
It closes, needs further to seal after fastening, at this time welded, i.e., welded by the way of vacuum seal under vacuum
It connects, forms vacuum sealing weld seam 7 after welding on the composite surface of upper strata steel plate 1 and lower floor's steel plate 2, total is cuboid
The blank can be then directly used in the rolling of steel titanium composite panel by composite plate blank.
In order to complete the preparation of above-mentioned symmetrical assembly, separation layer is set between upper strata titanium plate 3 and lower floor's titanium plate 4 first,
Then it by upper strata titanium plate 3 and the opposite splicing of lower floor's titanium plate 4, is positioned over after splicing in the groove milling 9 of lower floor's steel plate 2, by upside steel plate 1
The surface of lower floor's steel plate 2 is positioned over, makes to emit buckle structure fastening, becomes a rectangular parallelepiped structure, sealed under vacuum
Weldering, welding are completed to can be used to roll.
In the specific embodiment of the application, base material, that is, upper strata steel plate 1 and lower floor's steel plate 2 are Q345 steel, and size is length
1.8m, wide 1.1m, thickness 65mm；It is pure titanium TA2 to cover material i.e. upper strata titanium plate 3 and lower floor's titanium plate 4, and size is long 1.5m, wide 0.9m,
Thickness 8mm.The production of full rolled section steel titanium composite panel is carried out according to following process：
(1) the defects of removing base material and covering oxide layer, the slag inclusion on material surface, and by upper strata steel plate 1 and lower floor's steel plate 2 into
Row machining, 9 length and width of groove milling is identical with covering material size, depth 7.5mm；The height for emitting button is 4mm.
(2) base material with the composite surface for covering material is cleaned with acetone, dried.
(3) intermediate isolating layer is coated between upper strata titanium plate 3 and lower floor's titanium plate 4, the thickness about 1mm of separation layer is air-dried.
(4) upper strata titanium plate 3 and the opposite splicing of lower floor's titanium plate 4, are positioned over after splicing in the groove milling 9 of lower floor's steel plate 2, will be upper
Side steel plate 1 is positioned over the surface of lower floor's steel plate 2, makes to emit buckle structure fastening compression.
(5) upper strata steel plate 1 and lower floor's steel plate 2 are carried out by soldering using the method for vacuum seal, it is ensured that full weld.
(6) cuboid composite slab is placed in heating furnace after assembly is complete and is heated, heating temperature is 850 ± 20 DEG C, and use is low
The technique of fast large deformation carries out multi- pass rolling, final rolled products thickness 16mm.
(7) trimming is carried out to the product after rolling, and according to GB 6396-2008-T《Clad steel plate mechanics and processing performance
Test method》It tests to the shear strength of composite plate.
The properties of product that the present invention is produced are as follows：(1) steel-titanium compound interface Percentage bound is 100%；(2) interface shearing
Intensity is respectively 277MPa, 269MPa, 274MPa, 270MPa (4 groups of parallel samples)；(3) composite plate is in d=2a, α=180 °
Under the conditions of carry out bend test (just curved, recurvation, lateral bending), it is not cracking, all meet the requirements.
The utility model has the advantage that：Using groove milling and the design of buckle structure is emitted, without increasing during assembly
Lateral plate structure, at the same composite plate blank weld cracking in the hot rolling, base material can be effectively prevent and cover material dislocation and
Thus the high-temperature oxydation problem brought, can not only improve the bond strength of composite plate, but also can increase substantially full rolling
The lumber recovery of shaped steel titanium composite panel.
In conclusion the utility model provide it is a kind of for the symmetrical assembly of the titanium steel composite board rolled entirely, groove milling and
Composite plate blank weld cracking in the hot rolling, base material can be effectively prevent and cover material dislocation and thus band by emitting buckle structure
The high-temperature oxydation problem come, can not only improve the bond strength of composite plate, but also can increase substantially full rolled section steel titanium
The lumber recovery of composite plate.
The preferable specific embodiment of the above, only the utility model, but the scope of protection of the utility model is not
This is confined to, in the technical scope that any one skilled in the art discloses in the utility model, can be readily occurred in
Change or replacement, should be covered within the scope of the utility model.
Claims (10)
- It is 1. a kind of for the symmetrical assembly of the titanium steel composite board rolled entirely, which is characterized in that including upper strata steel plate (1), lower floor's steel Plate (2), upper strata titanium plate (3) and lower floor's titanium plate (4)；The upper strata steel plate (1) and lower floor's steel plate (2) are interlocked；The upper strata steel plate (1) and lower floor's steel plate (2) are corresponding Position offers groove milling (9) respectively, two groove millings (9) it is equal in magnitude；The upper strata titanium plate (3) and lower floor's titanium plate (4) are respectively placed in the groove milling (9) of the upper strata steel plate (1) and lower floor's steel plate (2) It is interior.
- 2. symmetrical assembly according to claim 1, which is characterized in that the upper strata steel plate (1) and lower floor's steel plate (2) are answered The centre position in conjunction face offers groove milling (9)；One end of the composite surface of the upper strata steel plate (1) is machined with raised (5), the other end It processes fluted (6)；Correspondingly one end of the composite surface of lower floor's steel plate (2) processes fluted (6), and the other end is machined with Raised (5).
- 3. symmetrical assembly according to claim 2, which is characterized in that the upper strata steel plate (1) and lower floor's steel plate (2) surrounding Weld seam is both provided at docking location, is welded by way of vacuum sealing weldering.
- 4. symmetrical assembly according to claim 3, which is characterized in that the depth of the groove milling (9) is less than 10mm；It is described convex The height for playing (5) and groove (6) is less than 5mm.
- 5. symmetrical assembly according to claim 3, which is characterized in that raised (5) and groove (6) are one group or more Group.
- 6. symmetrical assembly according to claim 3, which is characterized in that the protrusion (5) is cylindrical or cuboid, The groove (6) be blind round hole or cuboid blind hole, it is described protrusion (5) and groove (6) be distributed in upper strata steel plate (1) and under On four angles of the composite surface of layer steel plate (2), and raised (5) and groove (6) quantity is two, and be in a diagonal positions Raised (5), another diagonal positions is groove (6).
- 7. symmetrical assembly according to claim 3, which is characterized in that the protrusion (5) is cylindrical or cuboid, The groove (6) is blind round hole or cuboid blind hole, and the protrusion (5) and groove (6) are set as at composite surface both ends Two rows, the protrusion often arranged (5) and groove (6) interlaced arrangement.
- 8. symmetrical assembly according to claim 3, which is characterized in that the protrusion (5) is cuboid, and groove (6) is length Cube slot, raised (5) and groove (6) are located at the both ends of composite surface respectively, and raised (5) and groove (6) are through upper strata steel plate (1) and the whole length direction of lower floor's steel plate (2).
- 9. symmetrical assembly according to claim 1, which is characterized in that between the upper strata titanium plate (3) and lower floor's titanium plate (4) It is provided with separation layer (8).
- 10. symmetrical assembly according to claim 9, which is characterized in that the separation layer (8) is organic material.
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| CN201721315714.7U CN207535415U (en) | 2017-10-12 | 2017-10-12 | It is a kind of for the symmetrical assembly of the titanium steel composite board rolled entirely |
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| CN201721315714.7U CN207535415U (en) | 2017-10-12 | 2017-10-12 | It is a kind of for the symmetrical assembly of the titanium steel composite board rolled entirely |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854050A (en) * | 2019-03-18 | 2019-06-07 | 海洋石油工程股份有限公司 | The connection method of LNG tank primary tank bottom ring wall plate and annular slab |
| CN110539066A (en) * | 2019-09-06 | 2019-12-06 | 鞍钢股份有限公司 | Vacuum electron beam assembly seal welding method for high-alloy steel titanium composite plate |
| CN110749250A (en) * | 2019-10-30 | 2020-02-04 | 中国科学院力学研究所 | Novel hypersonic aircraft safety cover |
| CN110788135A (en) * | 2019-09-30 | 2020-02-14 | 鞍钢股份有限公司 | Composite blank manufacturing method for rolling titanium-steel composite plate |
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2017
- 2017-10-12 CN CN201721315714.7U patent/CN207535415U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854050A (en) * | 2019-03-18 | 2019-06-07 | 海洋石油工程股份有限公司 | The connection method of LNG tank primary tank bottom ring wall plate and annular slab |
| CN110539066A (en) * | 2019-09-06 | 2019-12-06 | 鞍钢股份有限公司 | Vacuum electron beam assembly seal welding method for high-alloy steel titanium composite plate |
| CN110539066B (en) * | 2019-09-06 | 2021-12-24 | 鞍钢股份有限公司 | Vacuum electron beam assembly seal welding method for high-alloy steel titanium composite plate |
| CN110788135A (en) * | 2019-09-30 | 2020-02-14 | 鞍钢股份有限公司 | Composite blank manufacturing method for rolling titanium-steel composite plate |
| CN110749250A (en) * | 2019-10-30 | 2020-02-04 | 中国科学院力学研究所 | Novel hypersonic aircraft safety cover |
| CN110749250B (en) * | 2019-10-30 | 2021-03-16 | 中国科学院力学研究所 | Hypersonic aircraft safety cover |
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