CN101088694B - Multi-layer composite material producing process and apparatus - Google Patents
Multi-layer composite material producing process and apparatus Download PDFInfo
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- CN101088694B CN101088694B CN2006100447735A CN200610044773A CN101088694B CN 101088694 B CN101088694 B CN 101088694B CN 2006100447735 A CN2006100447735 A CN 2006100447735A CN 200610044773 A CN200610044773 A CN 200610044773A CN 101088694 B CN101088694 B CN 101088694B
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Abstract
The present invention provides composite material producing process and apparatus, and the composite material is produced through vacuum treatment in a high vacuum chamber and rolling. The production process includes the steps of: machining the base layer material and coated layer material for constituting the composite material, cleaning, coating the surfaces with antioxidant, superposing and welding, welding residual gas trap with getter to the stack, setting the stack into vacuum chamber, vacuumizing and blowing argon and sealing in certain vacuum degree. The composite material has no residual gas in the interface and no gas caused delaminating, and the present invention is suitable for composite metal material with high strength, high hardness, low plasticity and low toughness.
Description
Technical field
The present invention relates to the multilayer composite metal material and make the field, particularly the manufacture method and the special equipment of other metallic multilayer composite that the different steel grades of intensity, any toughness, any thickness coupling or hot processing temperature are close arbitrarily.
Background technology
Multiple special benefits such as that metallic composite has is corrosion-resistant, intensity height are that single metal material is incomparable, under equivalent situation, can replace the simple metal material to be widely used in multiple field.Present bimetallic complex method has casting method, welding method, explosion method, cold rolling solid phase composite algorithm etc., and these methods all have application conditions and the range of application of oneself.The multiple layer thickness of the existence that has is difficult to accurately control or problems such as bond quality is poor, unstable properties, and makes kind be subjected to considerable restraint.With present most widely used explosion method is example, though it can produce the composite of multiple metal, but have following restriction and deficiency: the first because in the blast process along with the increase of multiple layer thickness, multiple layer descends with the stroke speed of basic unit, the rigidity of multiple layer itself increases, and causes welding process to realize.So during explosive welding, multiple layer theoretical maximum thickness is less than 21mm, reality reaches this value far away.It two is whole kinetic energy that multiple layer has born in basic unit in the blast process, so thickness is greater than multiple layer, multiple layer is that complex radical could be compound effectively than in generally will being controlled at less than 0.2 scope with the ratio of groundwork thickness in common blast operation, and this just makes product variety be restricted.It three is that explosion cladding process requirement basic unit, multiple layer all must have enough plasticity and toughness, lower intensity and fragility, having defined performance border multiple, base material in the actual production is δ 〉=19, σ b≤850MPa, and super this boundary line just can't realize the explosive welding process.In view of above-mentioned 3 points. still do not have to present countries in the world and to produce complex radical than bifurcation 0.2, basic unit is the multilayer materials of high-intensity martensitic structure.For example, through inquiry patent No. CN87102426A " combined thin sheet-exploding process ", CN911022341 " stainless steel compound metal stir-fry pan " etc. also all can not address the above problem.
Summary of the invention
The metal that the purpose of this invention is to provide a kind of suitable high strength, high rigidity, inductile, low toughness is done basic unit or multiple layer, perhaps making the number of plies and the thickness that basic unit makes multiple layer and multiple layer and basic unit again simultaneously can in very large range change, be the complex radical ratio: when layer thickness is less than groundwork thickness again is 0.05～1, is 1-20 metallic composite and manufacture method and special equipment when layer thickness is greater than groundwork thickness again.
The object of the present invention is achieved like this: multiple layer of the steel of any intensity, plasticity and basic unit, to drop into the rolling sotck thinkness that is allowed is primary condition, press the thickness direction stack, and selective stacking level and each layer thickness, will follow symmetry principle when determining level and thickness, that is: the level of the center line both sides of thickness and every layer thickness are wanted symmetry.Will design rolling mill practice separately for asymmetrical, be rolled by given technology then, can obtain thick composite plate in the hot rolling, hot rolling composite sheet (volume) and cold rolling composite sheet (volume) respectively, its complex radical ratio or layer thickness ratio are 0.05-20.Concrete technological process is as follows:
At first by the purposes of material and the material and the size of selected multiple layer of requirement and basic unit, its basic unit can be a homogenous material, also can be different different materials.Then necessary machining, its machining accuracy are carried out in two surfaces of layers of material
Next is each layer raw material coupling, after volatility cleaning agent cleaning greasy dirt, carries out multilayer build-up and interlayer welding by designing requirement, and the interlayer welding will be carried out according to the welding conditions of various materials, guarantees welding quality, does not allow crackle, pore, is mingled with existence.Again secondly the residual gas trap that fills getter be welded to plate folded on, to guarantee during welding that the trap space communicates with the space of each interlayer, and be the state of sealing with the external world. be plate to be folded be placed into Argon in the vacuum chamber, argon pressure PA 〉=1.5Kg/cm at last
2, purity Ar 〉=99.99% vacuumizes seam.Vacuum chamber P≤5x10
-2Torr, the speed of evacuation〉the 150L/S. vacuum system is the special facilities that is used for realizing the high vacuum in the folded gap of plate.Be characterized in: can under the state of high vacuum, carry out Argon and seal welding operation thereby plate is folded. avoided making the drawback of the folded gap of plate vacuum decline because of atmospheric effect.Its specified operational procedure is to open vacuum cover, and plate is folded to arrive operating position in the vacuum chamber via outer, interior rollgang, close the lid vacuumize, Argon, vacuumize again, when vacuum arrives 5x10
-2Seal welding when torr is above.All processes is all high-visible in screen, can guarantee accurate operation.For the hardness steel, both sides were of the same race or xenogenesis carbon element steel or stainless steel and threeply degree coupling clad steel plate or the steel band do not limit in the middle of this method was adapted to especially.
In vacuum chamber, realize desired vacuum and produce composite because the present invention has adopted with the rolling method that combines, and be equipped with the residual gas trap and guaranteed not have survival gas between the interface, thereby avoided the gas in the process to cause layering, the metallic composite that is fit to production high strength, high rigidity, inductile, low toughness, and the compound number of plies and every layer thickness all can in very large range change, and its complex radical ratio is 0.05～20.Use the present invention and can produce multiple and multilayer materials, compound with steel one steel is example, its interface shearing-resistance shearing stress τ
bThis class material of 200～800MPa. can be widely used in chemical industry, oil, shipbuilding, fields such as building, finishing, light industry and machinery, food are brewageed, container manufacturing, automobile exhaust pipe, salt manufacturing system alkali and ornament. the product that the present invention produced also is an ideal material of manufacturing the kitchen cutter, has the utmost point to have broad application prospects in industries such as various meat packings, catering industry, agricultural tools.
Description of drawings
Fig. 1 is the vacuum system structural representation of production equipment of the present invention;
Fig. 2 is the A view of Fig. 1.
Among the figure, 1, fore pump, 2, main pump, 3, distributor, 4, conduit, 5, vacuum chamber, 6, roller-way in the vacuum chamber, 7, square washer, 8, screen, 9, the Argon soldering opening, 10, vacuum room cover, 11, the outer roller-way of vacuum chamber.Fore pump 1 and main pump 2 are formed vavuum pump system, by conduit with vacuum chamber 5 before, in, three ones of backs are connected with distributor 3, be arranged on screen 8 on the vacuum room cover 10 and be used for observing Argon in the vacuum chamber 5, welding operation, screen 8 is to make with High Strength Plane glass, square washer 7 is housed on contact-making surface, guarantee that good sealing property .9 is the Argon soldering opening on the vacuum cover 10, this soldering opening 9 is the rubber tubes on the confession Argon plug that the insertion plate is folded when Argon, welding rod moves freely and keeps the constant facility of vacuum in the vacuum chamber when perhaps welding, and this soldering opening 9 should have containment measures.
Open vacuum room cover 10 during operation, send in the vacuum chamber 5 plate is folded by the outer roller-way 11 of vacuum chamber and indoor roller-way 6, the Argon plug position that plate is folded is aimed at the Argon soldering opening 9 on the vacuum cover 10, covering vacuum room cover 10 vacuumizes, vacuumize again after the Argon then, when vacuum reaches 5x10
-2Seal welding during tort, it is folded to open vacuum room cover 10 head boards after having welded, and implements rollingly, promptly obtains required composite.
The specific embodiment
Example 1; A kind of is to answer layer up and down with 0～ICr13 stainless steel, and carbon tool steel is a basic unit, and gross thickness is 3mm, and its each layer thickness is 1mm, and complex radical is than the composite of ≈ 1.
Example 2: a kind of with σ
bThe high-tensile structural steel that is 800-1200MPa is a superstratum, with σ
bThe structural steel that is 500 1 1000MPa is down multiple layer, therebetween σ
bBe the unimach of 1000～2400MPa, each layer thickness is impartial substantially, and promptly complex radical is than the 3-layer composite material of ≈ 1.
Example 3: a kind of stainless steel with thickness 10～30mm is superstratum or multiple up and down layer, with thickness is that the carbon steel of 100～300mm is a basic unit, and compound through this patent is that 1～30mm. basic unit is the composite of 1-30mm through rolling superstratum that obtains or multiple up and down layer again.
More than three its manufacture methods of embodiment be such: the composite surface of forming each basic unit and multiple layer is after machining, each layer raw material matches, press the thickness direction stack, and two surfaces of layers of material are cleaned, superimposed welding is carried out after being coated with antioxidant in the surface, the residual gas trap that fills getter is welded to plate to be folded, to guarantee the trap space to communicate during welding and be the state of sealing with the external world with the space of each interlayer, then with plate is folded be placed into vacuum chamber and vacuumize after, Argon vacuumizes again, when vacuum reaches P≤5 * 10
-2Seal welding during torr, its argon pressure P
A〉=1.5Kg/cm
2, purity Ar 〉=99.99%, the speed of evacuation 〉=150L/S.Said antioxidant can be with the suspension of 200 purpose copper of alcohol preparation as antioxidant, and coating amount is 10-50g/m
2/ L, can select for use the aluminum shot of 3-5mm to add the mixture of ferrosilicon grain as getter. place it in the special residual gas trap, the openend of this trap is communicated with interface layer, and be welded on the folded head of plate, all the other position sealings, after this will heat under 1240 ± 30 ℃ high temperature, following chemical reaction will take place in the oxygen, the nitrogen that remain between the interface:
Si ten O
2Two SiO
2
4Al ten 3O
2Two 2Al
2O
3
2AI ten N
2Two 2AIN
Gas has been absorbed behind the above-mentioned chemical reaction, the SiO that reaction is generated
2And AI
2O
3Still stay in the trap, this trap comes off in the operation of rolling automatically, can guarantee composite quality.
Claims (8)
1. a complex radical is than being the production method of 0.05-20 multilayer materials, it is characterized in that this production method adopted in vacuum chamber realize desired vacuum and and the rolling method that combines produce composite, the composite surface of forming each basic unit and multiple layer is after machining, layers of material matches, press the thickness direction stack, and two surfaces of layers of material are cleaned, superimposed welding is carried out after being coated with antioxidant in the surface, the residual gas trap that fills getter is welded to plate to be folded, to guarantee the trap space to communicate during welding and be the state of sealing with the external world with the space of each interlayer, then with plate is folded be placed into vacuum chamber and vacuumize after Argon again, the argon pressure PA 〉=1.5Kg/cm of Argon
2, purity Ar 〉=99.99% vacuumizes after the Argon, and the speed of evacuation 〉=150L/S is when vacuum reaches P≤5 * 10
-2Seal welding during torr, it is folded to open the vacuum room cover head board after having welded, and implements rollingly, and trap comes off in the operation of rolling automatically, promptly obtains required composite.
According to the said complex radical of claim 1 than being the production method of 0.05-20 multilayer materials, it is characterized in that said antioxidant is the suspension of 200 purpose copper powders and alcohol preparation, coating amount is 10～50g/m
2
According to the said complex radical of claim 1 than being the production method of 0.05-20 multilayer materials, it is characterized in that said getter is that the mixture of the ferrosilicon grain of the aluminum shot of 3～5mm and 3～5mm is formed.
4. special equipment of implementing the described production method of claim 1, it is characterized in that said special equipment forms vavuum pump system by fore pump (1) and main pump (2), by conduit (4) with vacuum chamber (5) before, in, back three parts are connected with distributor (3), be respectively equipped with roller-way (6) and the outer roller-way (11) of vacuum chamber in the vacuum chamber inside and outside the vacuum chamber (5), one end of vacuum chamber (5) has vacuum room cover (10), screen (8) and Argon soldering opening (9) are housed on the vacuum room cover (10), on the contact-making surface of screen (8) and vacuum room cover (10) square washer (7) are housed.
According to the said complex radical of claim 1 than being the production method of 0.05-20 multilayer materials, the basic unit that it is characterized in that said multilayer materials is multiple material or homogenous material, its complex radical is than being 0.5-20, a multiple layer intensity σ
b〉=850MPa.
According to the said complex radical of claim 1 than being the production method of 0.05-20 multilayer materials, it is characterized in that said multilayer materials, complex radical is than ≈ 1, by superstratum intensity σ
bBe the high-tensile structural steel of 800～1200MPa, multiple down layer intensity σ
bBe the structural steel of 580-1000MPa, foundation base intension σ
bFor the unimach of 1000-2400MPa is formed.
According to the said complex radical of claim 1 than being the production method of 0.05-20 multilayer materials, it is characterized in that said multilayer materials, multiple layer is 0Cr 13 stainless steels, basic unit is a carbon tool steel, complex radical is than ≈ 1.
According to the said complex radical of claim 1 than being the production method of 0.05-20 multilayer materials, it is characterized in that said multilayer materials, be superstratum or multiple up and down layer with the stainless steel of thickness 0.1-3mm, the carbon steel of thickness 1～30mm is that basic unit forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100447735A CN101088694B (en) | 2006-06-15 | 2006-06-15 | Multi-layer composite material producing process and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100447735A CN101088694B (en) | 2006-06-15 | 2006-06-15 | Multi-layer composite material producing process and apparatus |
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| Publication Number | Publication Date |
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| CN101088694A CN101088694A (en) | 2007-12-19 |
| CN101088694B true CN101088694B (en) | 2011-04-20 |
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| CN2006100447735A Expired - Fee Related CN101088694B (en) | 2006-06-15 | 2006-06-15 | Multi-layer composite material producing process and apparatus |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101700600B (en) * | 2009-11-19 | 2011-08-03 | 河南第一火电建设公司 | Welding process method of novel Q460 steel for transmission tower |
| CN103264221A (en) * | 2013-05-24 | 2013-08-28 | 戚正风 | Vacuum-packed composite steel production device and process |
| CN117680807B (en) * | 2024-02-02 | 2024-04-16 | 潍坊市连庆封头制造有限公司 | Vacuum-pumping welding device for pressure vessel |
Citations (6)
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|---|---|---|---|---|
| GB796389A (en) * | 1956-07-17 | 1958-06-11 | Allegheny Ludlum Steel | Improvements in or relating to method of making composite metal bodies of different metals |
| US4795078A (en) * | 1983-04-20 | 1989-01-03 | Kuroki Kogyosho Co., Ltd. | Method for producing a clad steel pipe |
| CN1114598A (en) * | 1994-07-08 | 1996-01-10 | 孟庆连 | Method for continuously making metal composite sheet or composite coil |
| CN1205257A (en) * | 1998-05-22 | 1999-01-20 | 陈忠林 | Method of mfg. metal compounded plate |
| CN1686653A (en) * | 2005-04-06 | 2005-10-26 | 吉欣（英德）热轧不锈复合钢有限公司 | Processing method of press forming soldering high rolling composite blank |
| JP4305383B2 (en) * | 2004-12-28 | 2009-07-29 | 日本電信電話株式会社 | End-to-end quality estimation apparatus and method |
-
2006
- 2006-06-15 CN CN2006100447735A patent/CN101088694B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB796389A (en) * | 1956-07-17 | 1958-06-11 | Allegheny Ludlum Steel | Improvements in or relating to method of making composite metal bodies of different metals |
| US4795078A (en) * | 1983-04-20 | 1989-01-03 | Kuroki Kogyosho Co., Ltd. | Method for producing a clad steel pipe |
| CN1114598A (en) * | 1994-07-08 | 1996-01-10 | 孟庆连 | Method for continuously making metal composite sheet or composite coil |
| CN1205257A (en) * | 1998-05-22 | 1999-01-20 | 陈忠林 | Method of mfg. metal compounded plate |
| JP4305383B2 (en) * | 2004-12-28 | 2009-07-29 | 日本電信電話株式会社 | End-to-end quality estimation apparatus and method |
| CN1686653A (en) * | 2005-04-06 | 2005-10-26 | 吉欣（英德）热轧不锈复合钢有限公司 | Processing method of press forming soldering high rolling composite blank |
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