CN103448319A - Rolled composite board and manufacturing method and equipment thereof - Google Patents

Abstract

The invention discloses a rolled composite board with good comprehensive performance, high production efficiency and thinner thickness, and a manufacturing method and equipment thereof. The composite board comprises a metal substrate bottom plate layer, a titanium composite layer and a brazing filler metal layer, wherein the titanium composite layer is compounded on one side or two sides of the metal substrate bottom plate layer, the brazing filler metal layer is positioned between the metal substrate bottom plate layer and the titanium composite layer, the metal substrate bottom plate layer, the brazing filler metal layer and the titanium composite layer are tightly compounded into a whole in a hot roller rolling mode, and interfaces among the layers achieve metallurgical bonding. The manufacturing method comprises material preparation, straightening, hot rolling and discharging, wherein the hot rolling is a hot roller composite forming mode of heating the flattened multi-layer material plate at the same time of feeding, hot-pressing and rolling at high temperature and high-temperature diffusion treatment of an interface. The manufacturing equipment comprises a pinch roll, a tension and straightening roll group, a heating and rolling roll group, a pinch roll and a crimping roll group which are sequentially arranged along the advancing direction of the plate, wherein the heating and rolling roll group comprises an upper roll and a lower roll, high-pressure heat conduction oil is arranged in an inner cavity of the rolls, and the rolls are provided with electromagnetic induction heating devices. Can be applied to the field of composite boards.

Description

A roll-pressed composite sheet and its manufacturing method and equipment

technical field

The invention relates to a composite board; in addition, the invention also relates to a method for manufacturing a composite board and a manufacturing device for a composite board.

Background technique

With the development of modern industry and science and technology, it is difficult for a single metal or alloy to fully meet the needs of modern production for the comprehensive performance of materials. Therefore, metal composite panels produced by combining dissimilar metals in layers have received attention and attention from many industries. use. Metal composite plate is a layered metal material prepared by using composite technology to make two or more metal plates with different physical, chemical and mechanical properties realize firm metallurgical bonding on the interface. The cladding is usually made of stainless steel, nickel, titanium, zirconium, copper, aluminum and other materials, and the base layer is made of low carbon steel, structural steel, low alloy steel, container steel, or carbon steel and stainless steel forgings. The interface of the two plates achieves metallurgical bonding and has a certain connection strength. The finished composite plate maintains a certain process performance after heat treatment, which can meet the needs of subsequent cold and hot processing. Metal composite panels have excellent corrosion resistance and other properties, but the price is low, and the superior cost performance makes them widely used in various industries such as petroleum, chemical industry, electric power, metallurgy, salt production, alkali production, aviation, aerospace, machinery manufacturing, construction, etc.

Titanium is widely used in aerospace, navigation, chemical industry and other fields because of its excellent corrosion resistance, but the disadvantage is that the cost is high, especially when it is used as a structural component. The effective solution is to use titanium steel composite plate . Titanium steel clad plate has a history of more than 40 years since its birth. Titanium steel clad plate has effectively utilized the excellent corrosion resistance of titanium and the strength of steel. The important thing is that the cost has also been greatly reduced, and the cost has reached the highest level. good combination. The existing manufacturing methods of clad steel plates include: filling metal ingot rolling method, explosive cladding method, rolling and crimping method, surfacing welding method and the like. In the case of titanium-steel clad plates, considering the characteristics of titanium, explosive cladding or rolling and crimping (including thick plate rolling and continuous hot rolling) are often used in industry. The explosive cladding method is usually carried out at room temperature, and the rolling and crimping method is to assemble the plates and heat-roll them. However, at present, the roll-pressed composite sheet made by the above method generally has a large thickness, and it is difficult to realize the manufacture of small-sized rolled composite sheet.

Contents of the invention

The technical problem to be solved by the invention is to overcome the deficiencies of the prior art and provide a roll-pressed composite plate with good comprehensive performance, high production efficiency and thin thickness.

In addition, the invention also provides a manufacturing method of the roll-pressed composite plate.

Moreover, the present invention also provides a manufacturing equipment for rolling composite boards.

The technical solution adopted by the roll-pressed composite sheet of the present invention is: the roll-pressed composite sheet of the present invention includes a metal substrate base layer, a titanium composite layer, and a solder layer, and the titanium composite layer is composited on the metal substrate base layer On one or both sides, the brazing filler metal layer is located between the metal substrate base layer and the titanium composite layer, and the metal substrate base layer, the brazing filler metal layer and the titanium composite layer pass through The hot rolling method is closely combined and integrated, and the interface between the layers achieves metallurgical bonding.

The material of the bottom layer of the metal substrate is ordinary steel or weathering steel or fire-resistant steel or stainless steel or copper or aluminum.

The solder layer is composed of aluminum-based solder, copper-based solder, nickel-based solder or silver-based solder.

The total thickness of the roll-pressed composite plate is 0.5-5.5 mm, wherein the thickness of the titanium composite layer is 0.1-0.5 mm.

A transparent titanium oxide layer is attached to the outer surface of the titanium composite layer.

The first technical scheme adopted in the manufacturing method of the roll-pressed composite sheet of the present invention is: comprise the following steps:

(a) Material preparation: Prepare one roll each of metal substrate coil, titanium coil and solder coil;

(b) Tensile straightening: Unwind and align the metal substrate coil, titanium coil and solder coil respectively, and stack them in sequence according to the order of the composite layers, and place the solder coil on the metal substrate coil and the titanium coil. Between the coils, the coils of metal substrate coils, titanium coils and solder coils stacked at the ends are leveled and fed by pinch rollers and tensioning rollers;

(c) Hot rolling: heating, high-temperature hot-press rolling and high-temperature diffusion treatment at the interface are carried out on the flattened three-layer material plate through heating and rolling rollers, and the metal substrate coil material, titanium coil material and braze The material roll is combined with hot roll forming, so that the brazing material is diffused and integrated with steel and titanium respectively;

(d) Discharging: The composited sheet is conveyed by the pinch roller and the curling roller group and harvested as a coil, cooled and unloaded to form a roll-pressed composite sheet coil.

The material of the metal substrate coil is ordinary steel or weathering steel or fire-resistant steel or stainless steel or copper or aluminum.

The brazing filler metal is an aluminum-based brazing filler metal, and in step (c), the heating temperature of the heating and rolling roll group is 750-800°C.

Alternatively, the solder is copper-based solder, and in step (c), the heating temperature of the heating and rolling roll group is 850-1000°C.

Alternatively, the solder is nickel-based solder, and in step (c), the heating temperature of the heating and rolling roll group is 1000-1300°C.

Alternatively, the solder is silver-based solder, and in step (c), the heating temperature of the heating and rolling roll group is 800-1000°C.

The second technical scheme adopted in the manufacturing method of the roll-pressed composite plate of the present invention is: comprise the following steps:

(a) Material preparation: Prepare one roll of metal base material, two rolls of titanium coil and two coils of brazing material;

(b) Tensile straightening: Unwind and align the metal substrate coil, titanium coil and solder coil respectively, and stack them in sequence according to the order of the composite layers. Place the metal substrate coil on the central layer, and two coils of titanium The coils are placed on the outermost layer respectively, and the two rolls of solder coils are respectively placed between the metal substrate coil and the two titanium coils. Flatten and feed the coils of substrate coils, titanium coils and solder coils;

(c) Hot rolling: heating, high-temperature hot-press rolling and high-temperature diffusion treatment at the interface are carried out on the flattened five-layer material plate through heating and rolling rollers. The material roll is combined with hot roll forming, so that the brazing material is diffused and integrated with steel and titanium respectively;

(d) Discharging: The composited sheet is conveyed by the pinch roller and the curling roller group and harvested as a coil, cooled and unloaded to form a roll-pressed composite sheet coil.

The material of the metal substrate coil is ordinary steel or weathering steel or fire-resistant steel or stainless steel or copper or aluminum.

The brazing filler metal is an aluminum-based brazing filler metal, and in step (c), the heating temperature of the heating and rolling roll group is 750-800°C.

Alternatively, the solder is copper-based solder, and in step (c), the heating temperature of the heating and rolling roll group is 850-1000°C.

Alternatively, the solder is nickel-based solder, and in step (c), the heating temperature of the heating and rolling roll group is 1000-1300°C.

Alternatively, the solder is silver-based solder, and in step (c), the heating temperature of the heating and rolling roll group is 800-1000°C.

The technical solution adopted by the manufacturing equipment of the roll-pressed composite sheet of the present invention is: comprising pinch rollers and tension-leveling roller groups arranged sequentially along the advancing direction of the sheet for flattening and feeding the coils of different materials; A heating and rolling roll set for hot roll composite forming of various coils, a pinch roll and a curling roll set for conveying and curling the composited plate, the heating and rolling roll set includes at least two upper and lower rolls For the set rolls, the inner cavity of each roll is provided with high-pressure heat transfer oil, and each roll is provided with an electromagnetic induction heating device.

The beneficial effects of the present invention are: since the roll-pressed composite plate of the present invention includes a metal substrate base layer, a titanium composite layer, and a solder layer, the titanium composite layer is composited on one or both sides of the metal substrate base layer Above, the brazing filler metal layer is located between the metal substrate bottom layer and the titanium composite layer, and the metal substrate bottom layer, the brazing filler metal layer and the titanium composite layer are tightly rolled by hot rolling. Composite into one, and the interface between the layers achieves metallurgical bonding; the present invention uses the metal base layer as the base layer of the composite board, which has low price and good structural strength, so that the structural stability can be guaranteed, and the titanium composite layer is used as the cladding layer. Titanium is one of the metals with the best acid and alkali resistance and weather resistance except gold, so it is widely used as a material for various chemical reaction vessels and heat exchangers, but the disadvantage is that the cost is high, especially when used as structural components When this problem is particularly prominent, the present invention uses titanium as cladding material, and its dosage is less, and cost is lower, makes the rolling composite plate of the present invention not only have the corrosion resistance of titanium, but also has the structural strength of base material again, makes cost In addition, in the present invention, the bottom plate layer of the metal base material, the brazing filler metal layer and the titanium composite layer are tightly compounded into one body through hot rolling, so that the production efficiency is high, and the plate can be made very thin , so the roll-pressed composite sheet of the present invention has good comprehensive performance, high production efficiency, and thinner thickness;

Since the manufacturing method of the roll-pressed composite sheet material of the present invention directly adopts the hot roll rolling method to closely compound into one body, the flattened multi-layer material sheet is heated and high-temperature hot-pressed and rolled by the heating and rolling roll group. , the metal substrate coil material, titanium coil material and brazing filler metal coil material are subjected to hot roll compound molding, so that the brazing filler metal is diffused and fused with steel and titanium respectively to form a whole, so the forming effect of the present invention is good, continuous production is possible, and the production efficiency is high .

Description of drawings

Fig. 1 is a schematic diagram of a partial cross-sectional structure of a roll-pressed composite sheet according to Embodiment 1 of the present invention;

Fig. 2 is a schematic diagram of the manufacturing equipment and manufacturing process of the roll-pressed composite sheet according to Embodiment 1 of the present invention;

Fig. 3 is a schematic diagram of a partial cross-sectional structure of a roll-pressed composite sheet in Example 2 of the present invention;

Fig. 4 is a schematic diagram of the manufacturing equipment and manufacturing process of the roll-pressed composite board according to the second embodiment of the present invention.

Detailed ways

Embodiment one:

As shown in Figure 1, the roll-pressed composite sheet of this embodiment is a titanium-steel dual-material composite sheet, and its cross-sectional structure includes a metal substrate base layer 10, a titanium composite layer 20, and a solder layer 30. The titanium composite layer 20 is compounded on one side of the metal substrate bottom layer 10, the brazing filler metal layer 30 is located between the metal substrate bottom layer 10 and the titanium composite layer 20, the metal substrate bottom layer 10, The brazing filler metal layer 30 and the titanium composite layer 20 are tightly compounded into one body by hot rolling, and the interface between the layers achieves metallurgical bonding. In this embodiment, the material of the metal substrate floor layer 10 is Weathering steel, the brazing filler metal layer 30 is composed of aluminum-based brazing filler metal, the outer surface of the titanium composite layer 20 is attached with a transparent titanium oxide layer, which is used for decoration on building materials, and the overall roll-pressed composite plate The thickness is 3mm, wherein the thickness of the titanium composite layer 20 is 0.1mm, and the thickness of the titanium composite layer 20 only accounts for 1/30 of the thickness of the entire roll-pressed composite sheet, so the cost of the precious metal titanium is not high, and the The total thickness range of the rolled composite plate may be 0.5-5.5 mm, wherein the thickness of the titanium composite layer 20 is 0.1-0.5 mm.

As shown in Fig. 2, the manufacturing equipment of the roll-pressed composite sheet in this embodiment includes pinch rollers and stretching and straightening roller groups 5 arranged sequentially along the advancing direction of the sheet for flattening and feeding coils of different materials. The heating and rolling roll group 6 for hot roll compound forming of various coil materials, the discharge pinch roll and curling roll group 7 for conveying and curling the composite plate, wherein the heating and rolling The roll set 6 includes at least two rolls arranged up and down, the inner cavity 61 of each roll is provided with high-pressure heat transfer oil, and each roll is provided with an electromagnetic induction heating device 62 .

The manufacturing method of the roll-pressed composite sheet of the present embodiment comprises the following steps:

(a) Material preparation: Prepare one roll each of metal substrate coil 1, titanium coil 2 and solder coil 3, wherein the metal substrate coil 1 is made of weathering steel, and the solder is aluminum-based solder material;

(b) Tension and straightening: unwind and align the metal substrate coil 1, titanium coil 2 and solder coil 3 respectively, and stack them in sequence according to the order of the composite layers, and place the solder coil 3 on the metal base Between material coil 1 and titanium coil 2, coils of metal substrate coil 1, titanium coil 2 and brazing material coil 3 are stacked together by pinch rollers and tensioning rollers 5 Leveling and feeding;

(c) Hot rolling: heating, high-temperature hot-press rolling, and high-temperature diffusion treatment at the interface are performed on the flattened three-layer material plate by heating and rolling roller group 6, and the metal substrate coil 1 and titanium coil The material 2 and the brazing material coil 3 are compositely formed by hot rolls, so that the brazing material is diffused and fused with steel and titanium respectively, and the heating temperature of the heating and rolling roll group 6 is 750-800°C, so that the aluminum base Solder melting;

(d) Discharging: the composited board is conveyed by the pinch roller and the curling roller group 7 and harvested as a coil, cooled and unloaded to form a rolled composite board coil 8 .

Embodiment two:

As shown in Figure 3, the roll-pressed composite sheet of this embodiment is a double-layer titanium single-layer steel composite sheet, and its cross-sectional structure includes a metal substrate bottom plate layer 10, a titanium composite layer 20, and a solder layer 30. The titanium composite layer 20 is compounded on both sides of the metal substrate base layer 10, the brazing material layer 30 is located between the metal substrate base layer 10 and the titanium composite layer 20, and the metal substrate base layer Layer 10, the brazing material layer 30 and the titanium composite layer 20 are tightly combined into one body by hot rolling, and the interface between the layers achieves metallurgical bonding. In this embodiment, the metal base plate layer 10 The material is ordinary steel, such as ordinary structural steel. The brazing material layer 30 is composed of copper-based brazing material. The outer surface of the titanium composite layer 20 is attached with a transparent titanium oxide layer, which is decorative for building materials. The total thickness of the rolled composite sheet is 5mm, wherein the thickness of each layer of the titanium composite layer 20 is 0.1mm, and the total thickness of the titanium composite layer 20 only accounts for 1/25 of the thickness of the entire rolled composite sheet, so , the cost increase of noble metal titanium is not high, the total thickness range of the roll-pressed composite plate may be 0.5-5.5 mm, and the thickness of the titanium composite layer 20 is 0.1-0.5 mm.

As shown in Figure 4, the manufacturing equipment of the roll-pressed composite sheet in this embodiment includes pinch rollers and stretching and straightening roller groups 5 arranged sequentially along the advancing direction of the sheet for flattening and feeding coils of different materials. The heating and rolling roll group 6 for hot roll compound forming of various coil materials, the discharge pinch roll and curling roll group 7 for conveying and curling the composite plate, wherein the heating and rolling The roll set 6 includes at least two rolls arranged up and down, the inner cavity 61 of each roll is provided with high-pressure heat transfer oil, and each roll is provided with an electromagnetic induction heating device 62 .

The manufacturing method of the roll-pressed composite sheet of the present embodiment comprises the following steps:

(a) Material preparation: Prepare one roll of metal base material coil 1, two rolls of titanium coil material 2 and brazing material coil 3, wherein the material of the metal base material coil 1 is ordinary structural steel, and the brazing material is Copper-based solder;

(b) Tension and straightening: unwind and align the metal substrate coil 1, titanium coil 2 and solder coil 3 respectively, and stack them in sequence according to the order of the composite layers, and place the metal substrate coil 1 in the center Two rolls of titanium coils 2 are respectively placed on the outermost layer, and two rolls of brazing material coils 3 are respectively placed between the metal substrate coil 1 and the two rolls of titanium coils 2. 5. Flatten and feed the metal substrate coil 1, titanium coil 2 and solder coil 3 whose ends are stacked together;

(c) Hot rolling: heating, high-temperature hot-press rolling, and high-temperature diffusion treatment at the interface by heating and rolling the five-layer material plate to be flattened by 6 sets of rolling rolls. The material 2 and the brazing material coil material 3 are compositely formed by hot rolls, so that the brazing material is diffused and fused with steel and titanium respectively, and the heating temperature of the heating and rolling roll group 6 is 850-1000 ° C, so that the copper-based Solder melting;

(d) Discharging: the composited board is conveyed by the pinch roller and the curling roller group 7 and harvested as a coil, cooled and unloaded to form a rolled composite board coil 8 .

Of course, the metal base layer 10 and the brazing material are not limited to those described in the above embodiments, and the material of the metal base layer 10 can also be other ordinary steel or fire-resistant steel or stainless steel or copper or aluminum. As for the material, other brazing materials can also be used according to the specific conditions of the board, for example, the brazing layer 30 can be selected to be composed of nickel-based brazing filler metal or silver-based brazing filler metal. When the solder is nickel-based solder, in step (c), the heating temperature of the heating and rolling roll group 6 is 1000-1300°C; when the solder is silver-based solder, step (c) Among them, the heating temperature of the heating and rolling roll group 6 is 800-1000°C.

The roll-pressed composite board of the invention is a roll-pressed composite board with good comprehensive performance, low cost, good structural performance and long service life. The thickness of the rolled composite sheet produced by the manufacturing equipment and manufacturing method of the rolled composite sheet of the present invention can be made very thin (0.5-5.5mm), which meets the needs for thin sheets in actual use, and can also save metal materials, solving the problem of Manufacturing challenges of roll-pressed composite sheets with small thickness dimensions. The present invention directly adopts the hot roll rolling method to closely compound into one body, and the leveled multi-layer material plate is heated and high-temperature hot-pressed and rolled by the heating and rolling roll group 6 at the same time as feeding, and the metal substrate coil material 1 , titanium coil material 2 and brazing material coil material 3 are compositely formed by hot rolls, so that brazing material is respectively integrated with steel and titanium diffusion fusion, so the molding effect of the present invention is good, continuous production is possible, and production efficiency is high.

The invention can be widely used in the field of composite plates.

Claims (10)

1. A roll-pressed composite plate, characterized in that: it includes a metal substrate base layer (10), a titanium composite layer (20), a solder layer (30), and the titanium composite layer (20) is composited on the metal On one or both sides of the base material base layer (10), the solder layer (30) is located between the metal base base layer (10) and the titanium composite layer (20), and the metal base The base plate layer (10), the brazing material layer (30) and the titanium composite layer (20) are tightly compounded into one body through hot rolling, and the interfaces between the layers achieve metallurgical bonding. 2. The roll-pressed composite sheet according to claim 1, characterized in that: the material of the metal base layer (10) is ordinary steel, weather-resistant steel, fire-resistant steel, stainless steel, copper, or aluminum. 3. The roll-pressed composite sheet according to claim 1, characterized in that: the solder layer (30) is composed of aluminum-based solder, copper-based solder, nickel-based solder, or silver-based solder. 4. The rolled composite sheet according to claim 1, characterized in that: the total thickness of the rolled composite sheet is 0.5-5.5 mm, and the thickness of the titanium composite layer (20) is 0.1-0.5 mm. 5. The roll-pressed composite plate according to claim 1, characterized in that: a transparent titanium oxide layer is attached to the outer surface of the titanium composite layer (20). 6. A method for manufacturing the roll-pressed composite sheet according to claim 1, characterized in that: comprising the following steps: (a) Material preparation: Prepare one roll each of metal substrate coil (1), titanium coil (2) and solder coil (3); (b) Tension and straightening: Uncoil the metal substrate coil (1), titanium coil (2) and solder coil (3) respectively, pull out and align them, and stack them in sequence according to the order of the composite layers. The material (3) is placed between the metal base coil (1) and the titanium coil (2), and the ends of the metal base coil ( 1), the coils of titanium coil (2) and solder coil (3) are flattened and fed; (c) Hot rolling: heating, high-temperature hot-press rolling and high-temperature diffusion treatment at the interface are carried out on the flattened three-layer material plate through heating and rolling roll group (6), and the metal substrate coil (1 ), titanium coil material (2) and solder coil material (3) are compositely formed by hot rolls, so that the solder alloy is diffused and fused with steel and titanium respectively to form a whole; (d) Discharging: the composited boards are conveyed by pinch rollers and crimping rollers (7) and harvested as coils, cooled and unloaded to form roll-pressed composite board coils (8). 7. A method for manufacturing the roll-pressed composite sheet according to claim 1, characterized in that: comprising the following steps: (a) Material preparation: prepare one roll of metal substrate coil (1), two coils of titanium coil (2) and two coils of solder material (3); (b) Tension and straightening: unwind and align the metal substrate coil (1), titanium coil (2) and solder coil (3), and stack them in sequence according to the order of the composite layers. Coil (1) is placed on the central layer, two rolls of titanium coils (2) are placed on the outermost layer, two rolls of brazing material (3) are placed on the metal substrate coil (1) and two rolls of titanium Between the materials (2), metal substrate coils (1), titanium coils (2) and solder coils (3) whose ends are stacked together by pinch rollers and tensioning rollers (5) The coil is flattened and fed; (c) Hot rolling: heating, high-temperature hot-press rolling and interface high-temperature diffusion treatment are performed on the flattened five-layer material plate through heating and rolling roll group (6) while feeding, and the metal substrate coil (1 ), titanium coil material (2) and solder coil material (3) are compositely formed by hot rolls, so that the solder alloy is diffused and fused with steel and titanium respectively to form a whole; (d) Discharging: the composited boards are conveyed by pinch rollers and crimping rollers (7) and harvested as coils, cooled and unloaded to form roll-pressed composite board coils (8). 8. The manufacturing method of roll-pressed composite sheet according to claim 6 or 7, characterized in that: the material of the metal substrate coil (1) is ordinary steel or weathering steel or refractory steel or stainless steel or copper or aluminum . 9. The manufacturing method of rolling composite sheet according to claim 6 or 7, characterized in that: the brazing filler metal is aluminum-based brazing filler metal, and in step (c), the heating and the heating of the rolling roll group (6) The temperature is 750-800°C; or, the brazing filler metal is copper-based brazing filler metal, and in step (c), the heating temperature of the heating and rolling roll group (6) is 850-1000°C; or, the brazing filler metal is Nickel-based solder, in step (c), the heating temperature of the heating and rolling roll group (6) is 1000-1300°C; or, the solder is silver-based solder, in step (c), heating and rolling The heating temperature of roll making group (6) is 800～1000 ℃. 10. A manufacturing equipment for roll-pressed composite sheet material according to claim 1, characterized in that: it includes pinch rollers and tension-leveling rollers for leveling coils of different materials and feeding them along the advancing direction of the sheet material in sequence Group (5), heating and rolling roller group (6) for hot roll composite forming of various coils, pinch roller and curling roller group (7) for conveying and curling the laminated sheet , the heating and rolling roll set (6) includes at least two rolls arranged up and down, the inner cavity (61) of each roll is provided with high-pressure heat-conducting oil, and each roll is provided with an electromagnetic induction heating device (62).

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