CN115229166A - Preparation method of bimetal bar - Google Patents

Abstract

The invention belongs to the technical field of material processing, in particular to a preparation method of a bimetallic bar, which comprises the steps of providing a vacuum environment and a protective gas environment by a vacuumizing device and a gas cylinder, pretreating metal by a first smelting furnace and a second smelting furnace, and carrying out high-speed injection by a supercharging device and a nozzle, so that the prepared bimetallic bar has uniform components, no casting defect and excellent performance; through setting up cutting device and No. two cutting device, carry out further optimization to the surface and the length of bimetal rod, the output accords with the bimetal rod that the industrial requirement can directly be used for production, and the production process is continuous, very big improvement production efficiency.

Description

Preparation method of bimetal bar

Technical Field

The invention belongs to the technical field of material processing, and particularly relates to a preparation method of a bimetallic bar.

Background

The bimetal material has the advantages of two materials in the aspects of structure and function, has excellent comprehensive performance and economic benefit, and is widely applied to the fields of mechanical manufacture, construction, aerospace and the like. The bimetallic material can simultaneously exert the characteristics of two metal materials and meet the requirement of complex application performance. The versatility of the composition of the metallic materials provides a wide variety of choices for the bimetallic material in different applications. The bimetal compounding method can be classified into three major categories, liquid-liquid phase bonding, liquid-solid phase bonding and solid-solid phase bonding, according to the forming state of the bimetal composite material.

A chinese patent with publication No. CN106541140A discloses a method for preparing a bimetal composite material, which comprises two tungsten metal layers, namely a first tungsten metal layer and a second tungsten metal layer, and a titanium metal layer in the middle, wherein the thickness of the first tungsten metal layer is 4-5mm, the thickness of the second tungsten metal layer is 2-3mm, and the thickness of the titanium metal layer is 8-10mm. The thickness of the titanium layer of the bimetal composite material prepared by the method is far greater than that of the tungsten layer, and the tungsten layer is provided with the hollow structure, so that the toughness of the tungsten layer is enhanced, and the high toughness and high strength of titanium are fully exerted under the condition of fully utilizing the high melting point of tungsten metal; the application range of the composite material is wider.

The bimetal bar is mainly prepared by a hot isostatic pressing process and a centrifugal casting process, but in the casting process, inert gas is not protected, so that the oxidation of a metal material is serious, the degree of fusion between the bimetal materials is influenced, and meanwhile, the preparation quality of the bimetal bar is influenced because the material is not uniformly cast easily in the manual casting process.

Therefore, the invention provides a preparation method of the bimetal bar.

Disclosure of Invention

To remedy the deficiencies of the prior art, at least one of the technical problems set forth in the background is addressed.

The technical scheme adopted by the invention for solving the technical problems is as follows: the preparation method of the bimetal bar comprises the following steps:

s1: respectively adding the metal material into a first smelting furnace and a second smelting furnace of the preparation equipment, and respectively smelting and stirring the metal material into a uniform first metal melt and a uniform second metal melt; the inside of smelting furnace and No. two smelting furnaces all is provided with heating device, and heating temperature can reach 1450 degrees centigrade the most, is equipped with the agitator in the inside of smelting furnace and No. two smelting furnaces simultaneously, under the effect of agitator, can be so that two interior smelting metal composition homogenization of stove. A speed regulator and a sensor are arranged in the stirrer, the rotating speed of the stirrer can be regulated according to requirements, the stopping temperature can be set, and when the rotating speed reaches the set temperature, the stirrer automatically stops rotating;

s2: fixedly clamping a metal bar on the clamping and moving device, wherein the metal bar penetrates through the first die and the second die; meanwhile, protective gas is introduced into the first mold and the second mold through a vacuumizing device and a gas cylinder for storing protective gas; the special vacuum environment of the preparation equipment, the pretreatment of the metal melt and the uniformity of material coverage in the spraying process ensure that the prepared bimetallic bar has uniform components, no casting defects and excellent performance; the generation of an oxidation film in the solidification process of the metal is avoided through the protective gas; a heating element is arranged in the first mold to ensure that the temperature value of the first metal melt is constant;

s3: after the temperature of the first smelting furnace reaches a set temperature, a switch of the first smelting furnace is opened to carry out automatic casting, the first metal melt and the metal bar are in solidification connection in the first mould, and meanwhile, the clamping and moving device clamps the metal bar to move, so that the first metal melt is in a continuous casting state;

s4: the first metal melt is drawn into a second die by the clamping and moving device, and the second metal melt in the second smelting furnace is sprayed into the second die through a spray head under the action of a pressurizing device and is tightly combined with the first metal melt to form a bimetallic bar;

s5: the bimetal bar is clamped by the moving device and pulled out of a second die, the surface of the bimetal bar is trimmed by the first cutting device, and the bimetal bar is cut into bars with fixed lengths by the second cutting device according to requirements; through a cutting device and No. two cutting device, carry out further optimization to the surface and the length of bimetal rod, the output accords with the bimetal rod that the industry required and can directly be used for production, and the production process is continuous, has greatly improved production efficiency.

Preferably, the preparation equipment comprises a base, a first smelting furnace, a second smelting furnace, a first mold, a second mold, a clamping and moving device, a vacuumizing device, a gas cylinder, a pressurizing device, a spray head, a first cutting device and a second cutting device; one end of the top surface of the base is fixedly connected with a first smelting furnace and a second smelting furnace in sequence, a first mold is arranged at the bottom of the first smelting furnace, a discharge opening of the first smelting furnace is communicated with the first mold, a second mold is arranged at the bottom of the second smelting furnace, a spray nozzle is installed at a spray hole of the second mold, the discharge opening of the second smelting furnace is communicated with the spray nozzle through a pipeline, a pressurizing device is arranged in the middle of the pipeline, an outlet of the first mold is communicated with an inlet of the second mold, a clamping moving device is installed at the other end of the top surface of the base, a first cutting device and a second cutting device are installed on one side of the clamping moving device in sequence from one side close to the second mold, a vacuumizing device air pipe is communicated with the first mold, protective gas is filled in the gas cylinder, and the gas cylinder air pipe is communicated with the second mold; when the device works, the metal materials are respectively added into a first smelting furnace and a second smelting furnace of the preparation equipment, and the metal materials are respectively smelted and stirred into uniform first metal melt and second metal melt; fixedly clamping a metal bar on the clamping and moving device, wherein the metal bar penetrates through the first die and the second die; meanwhile, protective gas is introduced into the first mold and the second mold through a vacuumizing device and a gas cylinder for storing protective gas; after the temperature of the first smelting furnace reaches a set temperature, a switch of the first smelting furnace is opened to carry out automatic casting, the first metal melt and the metal bar are in solidification connection in the first mould, and meanwhile, the clamping and moving device clamps the metal bar to move, so that the first metal melt is in a continuous casting state; the first metal melt is drawn into a second die by the clamping and moving device, and the second metal melt in the second smelting furnace is sprayed into the second die through a spray head under the action of a pressurizing device and is tightly combined with the first metal melt to form a bimetallic bar; the bimetal bar is clamped by the moving device and pulled out of a second die, the surface of the bimetal bar is trimmed by the first cutting device, and the bimetal bar is cut into bars with fixed lengths by the second cutting device according to requirements; the vacuum environment and the protective gas environment provided by the vacuumizing device and the gas cylinder, the pretreatment of the first smelting furnace and the second smelting furnace on metal, and the high-speed injection of the supercharging device and the nozzle are adopted, so that the prepared bimetallic bar has uniform components, no casting defects and excellent performance; through setting up cutting device and No. two cutting device, carry out further optimization to the surface and the length of bimetal rod, the output accords with the bimetal rod that the industrial requirement can directly be used for production, and the production process is continuous, has greatly improved production efficiency.

Preferably, a plurality of pairs of slide rails are fixedly connected to two sides of the second mold, each pair of slide rails is respectively positioned on two sides of a jet hole of the second mold, the direction of each slide rail is the same as the direction of an inner cavity of the second mold, a slide seat is slidably mounted between each pair of slide rails, a through hole is formed in one side of each slide seat and is in threaded communication with a spray head, a blind hole is formed in one side, close to the second mold, of the other side of each slide seat, the diameter of each through hole and the diameter of each blind hole are the same as that of the jet hole of the second mold, a screw hole is formed in one side, far away from the second mold, of each blind hole, a screw is arranged in each screw hole in a threaded manner, and a conical seat is fixedly connected to one end, close to the second mold, of each screw; when the device works, after the preparation equipment prepares the bimetallic bar for a long time, the inner wall of the injection hole of the second die can be gradually attached with solidified metal, so that the injection hole of the second die is gradually blocked, and the injection of the second metal melt into the second die is prevented, thereby influencing the production of the bimetallic bar; after the injection hole inner wall of No. two moulds is adhered to the metal that solidifies, promote the slide and slide along the slide rail for the through-hole separates with the injection hole of No. two moulds, and the blind hole aligns the injection hole of intercommunication No. two moulds, rotates the screw rod, makes the screw rod rotate the inside that gets into the blind hole, promotes the rotatory injection hole that passes No. two moulds of awl seat, dredges the injection hole of No. two moulds, thereby has reduced the condition of the injection hole jam of No. two moulds.

Preferably, hydraulic cylinders are fixedly connected to two sides of the first die, piston rods of the hydraulic cylinders are fixedly connected to the side faces of the sliding seats close to the first die, and connecting push rods are fixedly connected between the adjacent sliding seats; promote the slide through the pneumatic cylinder and slide along the slide rail, connect a plurality of slides through connecting push rod for a plurality of slides synchronous sliding, thereby reduced the difficulty degree when staff promotes the slide, simultaneously, improved the degree of accuracy that through-hole and blind hole align the intercommunication with the jet orifice of No. two moulds respectively.

Preferably, an outer ring of one side of the sliding seat, which is close to the screw rod, is provided with a plurality of crescent plates in a rotating manner, an outer ring of a rotating shaft of each crescent plate is provided with a torsion spring, a plurality of polishing convex strips are fixedly connected to the outer wall of each crescent plate, and the outer walls of the polishing convex strips are in sliding fit with the inner wall of a spraying hole of the second mold; during operation, when the screw rod promoted the rotatory jet orifice that passes No. two moulds of awl seat, the crescent shaped plate was under the effect of torsional spring, and the crescent shaped plate promotes to polish the sand grip and hug closely the jet orifice inner wall of No. two moulds, and when the awl seat was rotatory, the sand grip of polishing was polished the jet orifice inner wall of No. two moulds, will be attached to the metallic impurity on the jet orifice inner wall of No. two moulds and polish and clear away to the jet orifice permeability of No. two moulds has further been improved.

Preferably, the outer wall of the polishing convex strip is provided with a plurality of notches, and the side wall of each notch is provided with a plurality of dents; through the notch and the dent that set up, improved the roughness on sand grip surface of polishing, improved the frictional force between the injection hole inner wall of sand grip and No. two moulds of polishing to the effect of clearance has been improved.

Preferably, a sliding hole is formed in the screw, a plurality of arc holes are formed in the outer ring of one end, close to the screw, of the sliding seat, the arc holes are communicated with the sliding hole, an internal thread loop bar is rotatably mounted at one end, far away from the sliding seat, of the sliding hole, a thread sliding bar is slidably mounted in the sliding hole, a thread head of the thread sliding bar is in threaded fit with an inner ring of the internal thread loop bar, a plurality of pull ropes are fixedly connected to one end, close to the sliding seat, of the thread sliding bar, the pull ropes penetrate through the arc holes in a sliding manner, and one end, far away from the thread sliding bar, of each pull rope is fixedly connected with the middle of the crescent plate; when the tool is in operation, after the screw rod pushes the conical seat to rotate to penetrate through the injection hole of the second mold, the internal thread loop bar is rotated to enable the threaded sliding rod to rotate out of the internal thread loop bar, so that the threaded sliding rod slides to the conical seat, the pull rope is loosened, the crescent-shaped plate pushes the polishing convex strip to be attached to the inner wall of the injection hole of the second mold, and the screw rod is rotated to enable the polishing convex strip to polish the inner wall of the injection hole of the second mold, so that the crescent-shaped plate is prevented from being unfolded too early, and the conical seat is prevented from entering the injection hole of the second mold; simultaneously, because the awl seat passes behind the jet orifice of No. two moulds, expand the crescent moon shaped plate again, rotate the screw rod for the awl seat rotates and removes in the blind hole, polishes the jet orifice of No. two moulds, has reduced the probability that the piece of polishing got into No. two moulds insidely, and the piece of producing of polishing is brought back to the inside of blind hole by awl seat and crescent moon shaped plate, thereby has improved the inside clean degree of No. two moulds.

Preferably, a plurality of steel wire brushes are fixedly connected to the outer ring of one end of the conical seat, which is far away from the screw rod; during operation, the awl seat passes behind the jet orifice of No. two moulds, expandes the crescent shaped plate again, rotates the screw rod for the awl seat rotates and removes in the blind hole, polishes the jet orifice of No. two moulds, and the steel wire brush cleans the piece that produces of polishing to the inside of blind hole, has further reduced the piece and has got into the inside probability of No. two moulds, thereby has further improved the inside clean degree of No. two moulds.

Preferably, a plurality of through grooves are formed in the inner wall of the blind hole in a surrounding manner; during operation, the piece is brought back to the inside back of blind hole by the steel wire brush, and the piece drops from leading to the inslot to improve the inside clean degree of blind hole, reduced the difficult degree that the staff cleared up the blind hole.

The invention has the following beneficial effects:

1. according to the preparation method of the bimetal bar, the vacuum environment and the protective gas environment provided by the vacuumizing device and the gas cylinder, the pretreatment of metal by the first smelting furnace and the second smelting furnace, and the high-speed injection by the supercharging device and the sprayer are realized, so that the prepared bimetal bar has uniform components, no casting defects and excellent performance; through setting up cutting device and No. two cutting device, carry out further optimization to the surface and the length of bimetal rod, the output accords with the bimetal rod that the industrial requirement can directly be used for production, and the production process is continuous, has greatly improved production efficiency.

2. The preparation method of the bimetallic bar comprises the steps of arranging a sliding seat, a sliding rail, a screw and a conical seat; after the injection hole inner wall of No. two moulds is adhered to the metal that solidifies, promote the slide and slide along the slide rail for the through-hole separates with the injection hole of No. two moulds, and the blind hole aligns the injection hole of intercommunication No. two moulds, rotates the inside that the screw rod rotated and gets into the blind hole, promotes the rotatory injection hole that passes No. two moulds of awl seat, dredges the injection hole of No. two moulds, thereby has reduced the condition of the injection hole jam of No. two moulds.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a perspective view of a first embodiment of the present invention;

FIG. 2 is a cross-sectional view of a first mold and a second mold according to a first embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is an enlarged view of a portion of FIG. 3 at B;

FIG. 5 is an enlarged view of a portion of FIG. 3 at C;

FIG. 6 is an enlarged view of a portion of FIG. 4 at D;

FIG. 7 is a partial cross-sectional view of a second blind hole of an embodiment of the present invention;

FIG. 8 is a flow chart of a method of making the present invention;

in the figure: 1. a base; 2. a first smelting furnace; 3. a second smelting furnace; 4. a first mold; 5. a second mold; 6. clamping the mobile device; 7. a vacuum pumping device; 8. a gas cylinder; 9. a pressure boosting device; 10. a spray head; 11. a first cutting device; 12. a second cutting device; 13. a slide rail; 14. a slide base; 15. a through hole; 16. blind holes; 17. a screw hole; 18. a screw; 19. a conical seat; 20. a hydraulic cylinder; 21. connecting a push rod; 22. a crescent-shaped plate; 23. polishing the convex strips; 24. a notch; 25. indenting; 26. a slide hole; 27. an arc hole; 28. an internal thread loop bar; 29. a threaded slide bar; 30. pulling a rope; 31. a steel wire brush; 32. a through groove; 33. a pointed cone.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Example one

As shown in fig. 8, a method for preparing a bimetal bar according to an embodiment of the present invention includes the following steps:

s1: respectively adding metal materials into a first smelting furnace 2 and a second smelting furnace 3 of the preparation equipment, and respectively smelting and stirring the metal materials into a uniform first metal melt and a uniform second metal melt; the inside of smelting furnace 2 and No. two smelting furnaces 3 all is provided with heating device, and heating temperature can reach 1450 degrees centigrade the most, is equipped with the agitator in the inside of smelting furnace 2 and No. two smelting furnaces 3 simultaneously, under the effect of agitator, can be so that two interior smelting metal composition homogenization of stove. A speed regulator and a sensor are arranged in the stirrer, the rotating speed of the stirrer can be regulated according to requirements, the stopping temperature can be set, and when the rotating speed reaches the set temperature, the stirrer automatically stops rotating;

s2: a metal bar is fixedly clamped on the clamping and moving device 6 and penetrates through the first die 4 and the second die 5; meanwhile, protective gas is introduced into the first mold 4 and the second mold 5 through a vacuumizing device 7 and a gas cylinder 8 for storing protective gas; the special vacuum environment of the preparation equipment, the pretreatment of the metal melt and the uniformity of material coverage in the spraying process ensure that the prepared bimetallic bar has uniform components, no casting defects and excellent performance; the generation of an oxidation film in the solidification process of the metal is avoided through the protective gas; a heating element is arranged in the first mold 4 to ensure that the temperature value of the first metal melt is constant;

s3: after the temperature of the first smelting furnace 2 reaches a set temperature, a switch of the first smelting furnace 2 is turned on to carry out automatic casting, the first metal melt and the metal bar are in solidification connection in the first mould 4, and meanwhile, the clamping and moving device 6 clamps the metal bar to move, so that the first metal melt is in a continuous casting state;

s4: the first metal melt is drawn into a second mold 5 by a clamping and moving device 6, and the second metal melt in the second smelting furnace 3 is sprayed into the second mold 5 through a spray head 10 under the action of a pressurizing device 9 and is tightly combined with the first metal melt to form a bimetal bar;

s5: the bimetal bar is clamped by the moving device 6 and pulled out of the second die 5, the first cutting device 11 trims the surface of the bimetal bar, and the second cutting device 12 cuts the bimetal bar into bars with fixed length according to requirements; through a cutting device 11 and a cutting device 12, carry out further optimization to the surface and the length of bimetal rod, the output accords with the bimetal rod of industrial requirement and can directly be used for production, and the production process is continuous, has greatly improved production efficiency.

As shown in fig. 1 to 2, the preparation equipment comprises a base 1, a first smelting furnace 2, a second smelting furnace 3, a first mould 4, a second mould 5, a clamping and moving device 6, a vacuum-pumping device 7, a gas cylinder 8, a pressurizing device 9, a spray head 10, a first cutting device 11 and a second cutting device 12; a first smelting furnace 2 and a second smelting furnace 3 are fixedly connected to one end of the top surface of the base 1 in sequence, a first mold 4 is arranged at the bottom of the first smelting furnace 2, a discharge opening of the first smelting furnace 2 is communicated with the first mold 4, a second mold 5 is arranged at the bottom of the second smelting furnace 3, a spray nozzle 10 is installed at a spray hole of the second mold 5, a discharge opening of the second smelting furnace 3 is communicated with the spray nozzle 10 through a pipeline, a supercharging device 9 is arranged in the middle of the pipeline, an outlet of the first mold 4 is communicated with an inlet of the second mold 5, a clamping moving device 6 is installed at the other end of the top surface of the base 1, a first cutting device 11 and a second cutting device 12 are sequentially installed on one side of the clamping moving device 6 from one side close to the second mold 5, a vacuumizing device 7 is communicated with the first mold 4 through an air pipe, protective gas is filled in the air bottle 8, and the air pipe of the air bottle 8 is communicated with the second mold 5; when the device works, the metal materials are respectively added into a first smelting furnace 2 and a second smelting furnace 3 of the preparation equipment, and the metal materials are respectively smelted and stirred into uniform first metal melt and second metal melt; a metal bar is fixedly clamped on the clamping and moving device 6 and penetrates through the first die 4 and the second die 5; meanwhile, protective gas is introduced into the first mold 4 and the second mold 5 through a vacuumizing device 7 and a gas cylinder 8 for storing protective gas; after the temperature of the first smelting furnace 2 reaches a set temperature, a switch of the first smelting furnace 2 is turned on to perform automatic casting, the first metal melt and the metal bar are in solidification connection in the first mould 4, and meanwhile, the clamping and moving device 6 clamps the metal bar to move so that the first metal melt is in a continuous casting state; the first metal melt is drawn into a second die 5 by a clamping and moving device 6, and the second metal melt in the second smelting furnace 3 is sprayed into the second die 5 through a spray head 10 under the action of a pressurizing device 9 and is tightly combined with the first metal melt to form a bimetal bar; the bimetal bar is clamped by the moving device 6 and pulled out of the second die 5, the first cutting device 11 trims the surface of the bimetal bar, and the second cutting device 12 cuts the bimetal bar into bars with fixed length according to requirements; the vacuum environment and the protective gas environment provided by the vacuumizing device 7 and the gas cylinder 8, the first smelting furnace 2 and the second smelting furnace 3 for pretreating metal, and the pressurizing device 9 and the spray head 10 for high-speed spraying, so that the prepared bimetallic bar has uniform components, no casting defects and excellent performance; through setting up cutting device 11 and No. two cutting device 12, carry out further optimization to the surface and the length of bimetal rod, the output accords with the bimetal rod that the industrial requirement can directly be used for production, and the production process is continuous, has greatly improved production efficiency.

As shown in fig. 2 to 5, a plurality of pairs of slide rails 13 are fixedly connected to both sides of the second mold 5, each pair of slide rails 13 is respectively located at both sides of an injection hole of the second mold 5, and the direction of each slide rail 13 is the same as the direction of an inner cavity of the second mold 5, a slide seat 14 is slidably mounted between each pair of slide rails 13, a through hole 15 is formed in one side of the slide seat 14, the through hole 15 is in threaded communication with a spray head 10, a blind hole 16 is formed in one side of the slide seat 14, which is close to the second mold 5, the diameters of the through hole 15 and the blind hole 16 are the same as the injection hole of the second mold 5, a screw hole 17 is formed in one side of the blind hole 16, which is far from the second mold 5, a screw 18 is threadedly mounted inside the screw hole 17, and one end of the screw 18, which is close to the second mold 5, is fixedly connected with a conical seat 19; when the device works, after the preparation equipment prepares the bimetallic bar for a long time, the inner wall of the injection hole of the second die 5 can be gradually adhered with the solidified metal, so that the injection hole of the second die 5 is gradually blocked, and the injection of the second metal melt into the second die 5 is prevented, thereby influencing the production of the bimetallic bar; after the solidified metal is attached to the inner wall of the injection hole of the second mold 5, the sliding seat 14 is pushed to slide along the sliding rail 13, so that the through hole 15 is separated from the injection hole of the second mold 5, the blind hole 16 is aligned and communicated with the injection hole of the second mold 5, the screw rod 18 is rotated to enter the blind hole 16, the conical seat 19 is pushed to rotate to penetrate through the injection hole of the second mold 5, the injection hole of the second mold 5 is dredged, and the blocking condition of the injection hole of the second mold 5 is reduced.

As shown in fig. 2 to 3, hydraulic cylinders 20 are fixedly connected to both sides of the first mold 4, piston rods of the hydraulic cylinders 20 are fixedly connected to the side surfaces of the sliding seats 14 close to the first mold 4, and connecting push rods 21 are fixedly connected between adjacent sliding seats 14; promote slide 14 through pneumatic cylinder 20 and slide along slide rail 13, connect a plurality of slides 14 through connecting push rod 21 for a plurality of slides 14 synchronous sliding, thereby reduced the difficulty when staff promotes slide 14, simultaneously, improved the degree of accuracy that through-hole 15 and blind hole 16 align the intercommunication with the jet orifice of No. two moulds 5 respectively.

As shown in fig. 4, an outer ring of one surface of the slide 14 close to the screw 18 is provided with a plurality of crescent plates 22 in a rotating manner, an outer ring of a rotating shaft of each crescent plate 22 is provided with a torsion spring, a plurality of polishing convex strips 23 are fixedly connected to outer walls of the crescent plates 22, and outer walls of the polishing convex strips 23 are in sliding fit with inner walls of injection holes of the second mold 5; during operation, when the screw rod 18 promoted the rotatory jet orifice that passes No. two moulds 5 of awl seat 19, crescent plate 22 was under the effect of torsional spring, and crescent plate 22 promoted that the sand grip 23 of polishing hugs closely No. two moulds 5's jet orifice inner wall, and when awl seat 19 was rotatory, sand grip 23 of polishing was polished No. two moulds 5's jet orifice inner wall, will be attached to the metallic impurity on No. two moulds 5's jet orifice inner wall and polish and clear away to No. two moulds 5's jet orifice permeability has further been improved.

As shown in fig. 6, a plurality of notches 24 are formed in the outer wall of the polishing protrusion 23, and a plurality of dents 25 are formed in the side wall of each notch 24; through notch 24 and the indent 25 that sets up, improved the roughness on sand grip 23 surface, improved the frictional force between the injection hole inner wall of sand grip 23 and No. two moulds 5 of polishing to the effect of clearance has been improved.

As shown in fig. 4 to 5, a sliding hole 26 is formed inside the screw 18, a plurality of arc holes 27 are formed in an outer ring of one end of the slide carriage 14 close to the screw 18, the arc holes 27 are communicated with the sliding hole 26, an internal thread loop bar 28 is rotatably mounted at one end of the sliding hole 26 away from the slide carriage 14, a thread sliding bar 29 is slidably mounted inside the sliding hole 26, a thread head of the thread sliding bar 29 is in thread fit with an inner ring of the internal thread loop bar 28, a plurality of pulling ropes 30 are fixedly connected at one end of the thread sliding bar 29 close to the slide carriage 14, the pulling ropes 30 slidably penetrate through the arc holes 27, and one end of the pulling rope 30 away from the thread sliding bar 29 is fixedly connected with a middle part of the crescent plate 22; during operation, after the screw 18 pushes the conical seat 19 to rotate and penetrate through the injection hole of the second mold 5, the internal thread loop bar 28 is rotated, the thread slide bar 29 rotates and moves out of the internal thread loop bar 28, the thread slide bar 29 slides to the conical seat 19, the pull rope 30 is loosened, the crescent moon-shaped plate 22 pushes the polishing convex strip 23 to cling to the inner wall of the injection hole of the second mold 5, the screw 18 is rotated, the polishing convex strip 23 polishes the inner wall of the injection hole of the second mold 5, and therefore the phenomenon that the crescent moon-shaped plate 22 is unfolded too early and the conical seat 19 enters the injection hole of the second mold 5 is influenced; simultaneously, because awl seat 19 passes behind the jet orifice of No. two moulds 5, expand crescent plate 22 again, rotate screw rod 18 for awl seat 19 rotates and removes to blind hole 16, polishes the jet orifice of No. two moulds 5, has reduced the probability that the piece of polishing got into No. two moulds 5 insidely, and the piece that produces of polishing is brought back to the inside of blind hole 16 by awl seat 19 and crescent plate 22, thereby has improved the inside clean degree of No. two moulds 5.

As shown in fig. 4, a plurality of wire brushes 31 are fixedly connected to the outer ring of one end of the conical seat 19 away from the screw 18; during operation, awl seat 19 passes behind the jet orifice of No. two moulds 5, expands crescent moon shaped plate 22 again, rotates screw rod 18 for awl seat 19 rotates and removes to blind hole 16, polishes the jet orifice of No. two moulds 5, and steel wire brush 31 cleans the piece that produces of polishing to the inside of blind hole 16, has further reduced the probability that the piece got into No. two moulds 5 insides, thereby has further improved the inside clean degree of No. two moulds 5.

As shown in fig. 5, a plurality of through slots 32 are formed around the inner wall of the blind hole 16; during operation, the piece is taken back to the inside back of blind hole 16 by wire brush 31, and the piece drops from leading to the inslot 32 to improve the inside clean degree of blind hole 16, reduced the difficult degree that the staff cleared up blind hole 16.

Example two

As shown in fig. 7, a first comparative example, in which another embodiment of the present invention is: a plurality of groups of pointed cones 33 are fixedly connected to the inner wall of the blind hole 16 in a surrounding manner, and each group of the pointed cones 33 and the through grooves 32 are alternately distributed; when the wire hairbrush 31 rotates to enter the blind hole 16, the wire hairbrush 31 is scraped by the groups of pointed cones 33, so that the wire hairbrush 31 shakes, scraps mixed in the wire hairbrush 31 are shaken off, and the cleaning degree of the wire hairbrush 31 is improved.

When in work: respectively adding the metal materials into a first smelting furnace 2 and a second smelting furnace 3 of the preparation equipment, and respectively smelting and stirring the metal materials into a uniform first metal melt and a uniform second metal melt; a metal bar is fixedly clamped on the clamping and moving device 6 and penetrates through the first die 4 and the second die 5; meanwhile, protective gas is introduced into the first mold 4 and the second mold 5 through a vacuumizing device 7 and a gas cylinder 8 for storing protective gas; after the temperature of the first smelting furnace 2 reaches a set temperature, a switch of the first smelting furnace 2 is turned on to carry out automatic casting, the first metal melt and the metal bar are in solidification connection in the first mould 4, and meanwhile, the clamping and moving device 6 clamps the metal bar to move, so that the first metal melt is in a continuous casting state; the first metal melt is drawn into a second die 5 by a clamping and moving device 6, and the second metal melt in the second smelting furnace 3 is sprayed into the second die 5 through a spray head 10 under the action of a pressurizing device 9 and is tightly combined with the first metal melt to form a bimetal bar; the bimetal bar is pulled out of the second die 5 by the clamping and moving device 6, the surface of the bimetal bar is trimmed by the first cutting device 11, and the bimetal bar is cut into bars with fixed length by the second cutting device 12 according to requirements;

after the preparation equipment prepares the bimetal bar for a long time, the solidified metal is gradually attached to the inner wall of the injection hole of the second die 5, so that the injection hole of the second die 5 is gradually blocked, and the injection of the second metal melt into the second die 5 is prevented, thereby influencing the production of the bimetal bar;

the hydraulic cylinder 20 pushes the sliding seats 14 to slide along the sliding rails 13, the sliding seats 14 are connected through the connecting push rod 21, the sliding seats 14 slide synchronously, the through holes 15 are separated from the jet holes of the second die 5, and the blind holes 16 are aligned and communicated with the jet holes of the second die 5;

rotating the screw 18 to enter the blind hole 16, pushing the conical seat 19 to rotate to penetrate through the injection hole of the second mold 5, rotating the internal thread loop bar 28, enabling the threaded slide bar 29 to rotate and move out of the internal thread loop bar 28, enabling the threaded slide bar 29 to slide to the conical seat 19, enabling the pull rope 30 to loosen, enabling the crescent plate 22 to push the polishing convex strip 23 to cling to the inner wall of the injection hole of the second mold 5, rotating the screw 18, enabling the conical seat 19 to rotate and move into the blind hole 16, polishing the injection hole of the second mold 5, cleaning chips generated by polishing towards the inside of the blind hole 16 by the steel wire brush 31, pushing the chips generated by polishing into the inside of the blind hole 16, and enabling the chips to fall from the through groove 32; the dredging of the injection hole of the second die 5 is completed, so that the blocking condition of the injection hole of the second die 5 is reduced.

The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are merely intended to facilitate the description of the present invention and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the present invention.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. A preparation method of a bimetallic bar is characterized by comprising the following steps: the preparation method comprises the following steps:

s1: respectively adding metal materials into a first smelting furnace (2) and a second smelting furnace (3) of the preparation equipment, and respectively smelting and stirring the metal materials into uniform first metal melt and second metal melt;

s2: a metal bar is fixedly clamped on the clamping moving device (6), and penetrates through the first die (4) and the second die (5); meanwhile, protective gas is introduced into the first mold (4) and the second mold (5) through a vacuum pumping device (7) and a gas cylinder (8) for storing protective gas;

s3: after the temperature of the first smelting furnace (2) reaches a set temperature, a switch of the first smelting furnace (2) is turned on to perform automatic casting, the first metal melt and the metal bar are in solidification connection in the first mould (4), and meanwhile, the clamping and moving device (6) clamps the metal bar to move, so that the first metal melt is in a continuous casting state;

s4: the first metal melt is drawn into a second die (5) by a clamping and moving device (6), and the second metal melt in the second smelting furnace (3) is sprayed into the second die (5) through a spray head (10) under the action of a pressurizing device (9) and is tightly combined with the first metal melt to form a bimetal bar;

s5: the bimetal bar is pulled out of a second die (5) by a clamping moving device (6), the surface of the bimetal bar is trimmed by a first cutting device (11), and the bimetal bar is cut into bars with fixed lengths by a second cutting device (12) according to requirements.

2. The method for producing a bimetallic bar according to claim 1, characterized in that: the preparation equipment comprises a base (1), a first smelting furnace (2), a second smelting furnace (3), a first mold (4), a second mold (5), a clamping and moving device (6), a vacuumizing device (7), a gas cylinder (8), a pressurizing device (9), a spray head (10), a first cutting device (11) and a second cutting device (12); the top surface one end of base (1) rigid coupling has smelting furnace (2) and No. two smelting furnaces (3) in proper order, the bottom of smelting furnace (2) is provided with mould (4) No. one, and the discharge opening of smelting furnace (2) communicates mould (4) No. two, the bottom of No. two smelting furnace (3) is provided with mould (5) No. two, shower nozzle (10) are installed to the jet orifice of mould (5) No. two, the discharge opening of No. two smelting furnaces (3) passes through pipeline intercommunication shower nozzle (10), and the middle part of pipeline is provided with supercharging device (9), the export of mould (4) and the entry intercommunication of mould (5) No. two, press from both sides tight mobile device (6) are installed to the top surface other end of base (1), press from the one side that is close to mould (5) of tight mobile device (6) and install cutting device (11) and No. two cutting device (12) in proper order, evacuating device (7) trachea intercommunication mould (4) No. one side, the inside of gas cylinder (8) has protective gas, and gas cylinder (8) intercommunication filling.

3. The method of manufacturing a bimetallic bar according to claim 2, characterized in that: the equal rigid coupling in both sides of No. two moulds (5) has many pairs of slide rail (13), and is every right slide rail (13) are located the jet orifice both sides of No. two moulds (5) respectively, and the direction of slide rail (13) is the same with the inner chamber direction of No. two moulds (5), and is every right slidable mounting has slide (14) between slide rail (13), through-hole (15) have been seted up to one side of slide (14), through-hole (15) and shower nozzle (10) screw thread intercommunication, blind hole (16) have been seted up to the opposite side of slide (14) one side that is close to No. two moulds (5), through-hole (15) all are the same with the jet orifice of No. two moulds (5) with the diameter of blind hole (16), screw (17) have been seted up to blind hole (16) one side of keeping away from No. two moulds (5), screw (18) are installed to the internal thread of screw (17), screw (18) are close to the one end of No. two moulds (5) and have awl seat (19).

4. The method of manufacturing a bimetallic bar according to claim 3, characterized in that: the equal rigid coupling in both sides of a mould (4) has pneumatic cylinder (20), the piston rod of pneumatic cylinder (20) and slide (14) side rigid coupling that is close to a mould (4) are adjacent the rigid coupling has connecting push rod (21) between slide (14).

5. The method of manufacturing a bimetallic bar according to claim 3, characterized in that: slide (14) are close to the one side outer lane of screw rod (18) and set up the rotation and install a plurality of crescent shaped plates (22), the pivot outer lane of crescent shaped plate (22) is provided with the torsional spring, the outer wall rigid coupling of crescent shaped plate (22) has a plurality of sand grip (23) of polishing, the outer wall of sand grip (23) and the jet orifice inner wall sliding fit of No. two mould (5) polish.

6. The method of manufacturing a bimetallic bar according to claim 5, characterized in that: a plurality of notches (24) are formed in the outer wall of the polishing convex strip (23), and a plurality of dents (25) are formed in the side wall of each notch (24).

7. The method of manufacturing a bimetallic bar according to claim 5, characterized in that: slide opening (26) have been seted up to the inside of screw rod (18), slide (14) are close to the one end outer lane of screw rod (18) and have been seted up a plurality of arc holes (27), arc hole (27) intercommunication slide opening (26), slide opening (26) are kept away from the one end rotation of slide (14) and are installed internal thread loop bar (28), the inside slidable mounting of slide opening (26) has screw slide bar (29), the screw thread head of screw slide bar (29) and the inner circle screw-thread fit of internal thread loop bar (28), the one end rigid coupling that screw slide bar (29) are close to slide (14) has a plurality of stay ropes (30), stay rope (30) slide and run through arc hole (27), the one end that screw slide bar (29) were kept away from in stay rope (30) and the middle part rigid coupling of crescent shaped plate (22).

8. The method for producing a bimetallic bar according to claim 5, characterized in that: and a plurality of wire brushes (31) are fixedly connected with the outer ring of one end of the conical seat (19) far away from the screw rod (18).

9. The method of manufacturing a bimetallic bar of claim 8, wherein: the inner wall of the blind hole (16) is provided with a plurality of through grooves (32) in a surrounding way.

10. The method for producing a bimetallic bar according to claim 9, characterized in that: the inner wall of the blind hole (16) is fixedly connected with a plurality of groups of pointed cones (33) in a surrounding mode, and each group of the pointed cones (33) and the through grooves (32) are distributed alternately.

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