CN112171031A - Conductive nozzle, composite bar thereof and manufacturing process - Google Patents
Conductive nozzle, composite bar thereof and manufacturing process Download PDFInfo
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- CN112171031A CN112171031A CN202010966169.8A CN202010966169A CN112171031A CN 112171031 A CN112171031 A CN 112171031A CN 202010966169 A CN202010966169 A CN 202010966169A CN 112171031 A CN112171031 A CN 112171031A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/24—Features related to electrodes
- B23K9/26—Accessories for electrodes, e.g. ignition tips
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Abstract
The invention discloses a contact tube, a composite bar and a manufacturing process thereof, and discloses a composite bar which comprises an outer layer and an inner layer, wherein the inner wall of the outer layer defines a through central hole; the outer layer is made of a conductive material with the conductivity of more than 55 Mega Siemens/m; an inner layer bonded to the outer layer; the inner layer is made of a conductive material with the conductivity of more than 53 million Siemens/meter and the softening temperature of not less than 600 ℃; the invention also discloses a manufacturing process for manufacturing the composite bar, wherein the rod-shaped inner layer penetrates into the outer layer along one end of the penetrating central hole, so that the outer layer and the inner layer are combined; according to the invention, the composite bar is used for manufacturing the contact tube, the outer layer of the contact tube manufactured by the composite bar has excellent conductive heat dissipation performance, and the wire guide hole of the contact tube has excellent high-temperature wear resistance and heat dissipation performance, so that the service life of the contact tube is prolonged.
Description
Technical Field
The invention belongs to the technical field of welding equipment, and particularly relates to a contact tube, a composite bar and a manufacturing process thereof.
Background
The contact tip is a wearing part with the most loss in the carbon dioxide protection welding and consumable electrode argon arc welding process, and the loss condition of the contact tip directly determines the welding quality. The performances of the contact tube are mainly reflected in the aspects of electric conductivity, heat dissipation performance, wear resistance of an inner hole, consistency of aperture, roundness of the aperture and the like.
The current contact nozzles produced by various manufacturers at home and abroad have the following problems:
the first method comprises the following steps: the contact nozzle has good heat dissipation performance, otherwise, the contact nozzle can be quickly burnt in the using process, so most of factories use red copper to manufacture the contact nozzle, but the hardness of the red copper is obviously reduced under the high-temperature condition, and the wire guide hole can be quickly worn under the continuous wear condition of the welding wire, so that the welding quality is in problem;
and the second method comprises the following steps: some manufacturers adopt alloy materials such as chromium, zirconium and copper to manufacture the contact tube, the wear resistance of chromium, zirconium and copper under high temperature environment is improved to a certain extent compared with that of red copper, but the improvement range is limited, and in addition, the production cost is obviously improved compared with that of the red copper due to the high price of the materials such as chromium, zirconium and copper;
and the third is that: manufacturers also combine two different materials to produce the contact tube, for example, the outer layer is made of copper alloy, and the inner part is partially embedded with other high temperature resistant materials such as tungsten alloy, ceramics and the like, but the embedded high temperature resistant materials have poor heat dissipation and heat conduction effects, the combined surface with the outer layer is poor in heat conduction, in addition, only one piece can be processed, the combination process is complex, the wire guide hole is difficult to process, the consistency of the product quality and the precision is difficult to ensure, the cost is also obviously improved, and the user is difficult to bear.
In conclusion, the wire guide hole of the contact tube in the prior art is easy to wear, so that the welding quality is influenced; the contact tube made of chromium zirconium copper has wear resistance, but the cost is high, the production cost is increased, and the competitiveness is weak; and the processing technology of some raw materials for manufacturing the contact tube is complex, and the quality of the final product of the contact tube is difficult to ensure.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a contact tube, a composite bar thereof and a manufacturing process aiming at the defects of the prior art.
The technical scheme for realizing the invention is as follows:
the invention provides a composite bar, which comprises:
an outer layer, the inner wall of the outer layer defining a central aperture therethrough; the outer layer is made of a conductive material with the conductivity of more than 55 Mega Siemens/m, the conductive material of the outer layer can be silver, copper, silver alloy or copper alloy, and the conductive material of the outer layer has good conductive heat dissipation performance;
an inner layer cold or hot bonded to the outer layer; the inner layer is made of a conductive material with the conductivity of more than 53 million Siemens/meter and the softening temperature of not less than 600 ℃; the conductive material of the inner layer is reinforced copper alloy, so that the inner layer has excellent high-temperature wear resistance and heat dissipation performance; the cold state combination mode of the invention comprises drawing, extruding, rolling and spinning; the thermal bonding means includes heat and pressure and welding.
Preferably, when the outer layer and the inner layer are combined in a cold state, the combination force of the outer layer and the inner layer is not less than 0.8 kg/square centimeter, and the structural design can enable the outer layer and the inner layer to be combined more firmly.
Preferably, the volume of the inner layer in the composite bar is 0.05-60%; the invention reduces the consumption of inner layer materials as much as possible on the premise of ensuring the service life, and the smaller the product is, the larger the volume ratio of the inner layer is; the larger the product, the smaller the inner layer volume ratio.
A manufacturing process of a composite bar comprises preparing an outer layer; the outer layer is made of a material with the conductivity of more than 55 Mega Siemens/m and is formed into a tubular form with a through central hole;
preparing an inner layer; the inner layer is made of a material with the conductivity of more than 53 Mm Siemens/m and the softening temperature of not less than 600 ℃, and the material of the inner layer is made into a rod-shaped form which is suitable for extending into the central hole of the outer layer;
penetrating the rod-shaped inner layer into the outer layer along one end of the penetrating central hole, so that the outer layer and the inner layer are subjected to cold-state bonding or hot-state bonding; preferably, the outer layer material is in a round tube state before combination, the inner layer material is in a round bar state before combination, and the surface cleanliness of the outer layer material and the inner layer material is not more than 200 mg/square meter, so that the outer layer material and the inner layer material are better combined.
A wire guide hole is formed in the center of the inner layer of the composite bar through a single-edge cutting process.
Preferably, the tail part of the wire guide hole is provided with a conical hole, and the cross section area of the conical hole is gradually reduced from outside to inside, so that a welding wire can conveniently enter the wire guide hole; the outer side face of the tail of the outer layer of the composite bar is provided with an external thread, and a tool withdrawal groove is formed between the external thread and the middle of the outer layer.
Preferably, the tail part of the wire guide hole is provided with a tapered hole; the outer side face of the tail of the outer layer of the composite bar is provided with an external thread, and a tool withdrawal groove is formed between the external thread and the middle of the outer layer.
Preferably, the diameter of an outer layer between the external thread and the tool withdrawal groove is smaller than that of an outer layer on the front side of the tool withdrawal groove.
Preferably, the tail part of the wire guide hole is provided with a tapered hole, the cross-sectional area of the tapered hole is gradually reduced from outside to inside, and the outside of the tapered hole is of a cylindrical hole structure.
A manufacturing process for manufacturing the contact tube comprises
Manufacturing a composite bar: preparing an outer layer of a material having a conductivity greater than 55 megasiemens/meter and formed into a tubular form with a central bore therethrough; preparing an inner layer, wherein the inner layer is made of a material with the conductivity of more than 53 Mm Siemens/m and the softening temperature of not less than 600 ℃, and the material of the inner layer is made into a rod-shaped form suitable for extending into a central hole of the outer layer; penetrating the rod-shaped inner layer into the outer layer along one end of the penetrating central hole, and combining the outer layer and the inner layer to form a composite bar;
manufacturing a contact tube; firstly, processing the composite bar to the length required by a contact tube; then, a wire guide hole is formed in the center of the inner layer of the processed composite bar through a single-edge drilling process, the wire guide hole is manufactured through a single-edge drilling, non-tool-retracting and one-time drilling forming process, the consistency of the surface quality of the hole wall of the wire guide hole can be ensured in the manufacturing process of the wire guide hole, the roughness, the aperture and the roundness of the wire guide hole are ensured to be excellent, and the aperture consistency of the wire guide hole is ensured; the volume ratio of the inner layer in the composite bar is 0.05-60%, the consumption of the inner layer material is reduced as much as possible on the premise of ensuring the service life, and the smaller the product is, the larger the volume ratio of the inner layer is; the larger the product, the smaller the inner layer volume ratio; finally, machining and forming the appearance of the contact tube by machining; the contact tube of the present invention is not limited to a certain structure, and the shape structure of the contact tube can be manufactured according to the actual application requirement.
Preferably, the length of the composite bar after the outer layer and the inner layer are combined is not less than 0.2 m; the outer layer and the inner layer are combined in a drawing, extruding, rolling, spinning, heating and pressurizing or welding mode.
By adopting the technical scheme, the invention has the following beneficial effects:
(1) the invention discloses a composite bar, which comprises an outer layer and an inner layer, wherein the inner wall of the outer layer defines a through central hole and is made of a conductive material with the conductivity of more than 55 Mega Siemens/m; the inner layer is made of a conductive material with the conductivity of more than 53 million Siemens/meter and the softening temperature of not less than 600 ℃, and the inner layer is combined with the outer layer; the composite bar has the advantages of good electrical conductivity, excellent heat dissipation performance, high-temperature wear resistance and low manufacturing cost.
(2) The manufacturing process of the composite bar disclosed by the invention comprises the following steps of firstly preparing an outer layer, wherein the outer layer is made of a material with the electric conductivity of more than 55 Mm Siemens/m and is formed into a tubular form with a through central hole; preparing an inner layer, wherein the inner layer is made of a material with the conductivity of more than 53 Mm Siemens/m and the softening temperature of not less than 600 ℃, and the material of the inner layer is made into a rod-shaped form suitable for extending into a central hole of the outer layer; finally, the rod-shaped inner layer is arranged in the central hole of the outer layer in a penetrating mode, and the outer layer and the inner layer are combined to form a composite bar; the manufacturing and using cost of the composite bar is low; the outer layer of the composite bar has excellent heat dissipation performance, and the inner layer has excellent high-temperature wear resistance and heat dissipation performance.
(3) According to the invention, the composite bar is used for manufacturing the conductive nozzle, the wire guide hole of the conductive nozzle is manufactured by a single-edge cutting process, the inner hole roughness, the aperture and the roundness of the wire guide hole manufactured by the process are excellent, the high-temperature wear resistance of the wire guide hole is obviously improved while the conductive performance and the heat dissipation performance of the conductive nozzle are ensured, the wire guide hole is not easy to wear, the manufacturing and using cost is low, the service life of the conductive nozzle is prolonged, and the cost is saved; the contact tip of the present invention is not limited to a certain structure, and the structure of the contact tip can be manufactured according to the actual application requirements.
(4) The manufacturing process of the contact tube disclosed by the invention comprises the following steps of firstly manufacturing a composite bar, wherein the composite bar is formed by adopting a high-conductivity heat dissipation material and a high-temperature wear-resistant material; the manufacturing of the wire guide hole can ensure the consistency of the surface quality of the hole wall of the wire guide hole, ensure the excellent performances of roughness, aperture and roundness of the wire guide hole, ensure the consistency of the aperture of the wire guide hole, ensure the use aging of the wire guide hole and ensure the welding quality; the manufacturing process has the advantages of low manufacturing cost, simple manufacturing process and convenient popularization and use.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the present disclosure taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic structural view of a composite rod according to the present invention;
FIG. 2 is a flow chart of the manufacturing of the contact tip described in embodiment 1;
FIG. 3 is a schematic view of the structure of the contact tip described in embodiment 2;
FIG. 4 is a schematic view of the structure of the contact tip described in embodiment 3;
FIG. 5 is a schematic view of the structure of the contact tip described in embodiment 4;
FIG. 6 is a schematic view of the structure of the contact tip described in embodiment 5;
FIG. 7 is a schematic view of the structure of the contact tip described in embodiment 6.
In the figure, 1-outer layer, 2-inner layer, 3-thread guide hole, 4-tool withdrawal groove, 5-external thread and 6-taper hole.
Detailed Description
The technical solution of the present invention is described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.
Example 1: the embodiment of the invention discloses a composite bar, as shown in the attached figure 1, the composite bar comprises:
an outer layer, the inner wall of the outer layer defining a central aperture therethrough; the outer layer is made of a conductive material with the conductivity of more than 55 Mega Siemens/m, the conductive material of the outer layer can be silver, copper, silver alloy or copper alloy, and the conductive material of the outer layer has good conductive heat dissipation performance;
the inner layer is combined with the outer layer in a cold state or in a hot state, when the outer layer and the inner layer are combined in a cold state mode, the bonding force between the outer layer and the inner layer is not lower than 0.8 kilogram per square centimeter, and the outer layer and the inner layer can be combined more tightly by the control design of the bonding force; the cold-state combination mode in the embodiment comprises drawing, extruding, rolling and spinning, and the hot-state combination mode comprises heating, pressurizing or welding; the inner layer is made of a conductive material with the conductivity of more than 53 million Siemens/meter and the softening temperature of not less than 600 ℃; the conductive material of the inner layer is reinforced copper alloy, so that the inner layer has excellent high-temperature wear resistance and heat dissipation performance; the volume ratio of the inner layer in the composite bar is 0.05-60%, in this embodiment, the use amount of the inner layer material is reduced as much as possible on the premise of ensuring the service life, and the smaller the product, the larger the volume ratio of the inner layer; the larger the product, the smaller the inner layer volume ratio.
The composite bar disclosed in the embodiment comprises an outer layer and an inner layer, wherein the inner wall of the outer layer defines a through central hole and is made of a conductive material with the conductivity of more than 55 Mega Siemens/m; the inner layer is made of a conductive material with the conductivity of more than 53 million Siemens/meter and the softening temperature of not less than 600 ℃, and is combined with the outer layer in a cold state or in a hot state; the composite bar has the advantages of good electrical conductivity, excellent heat dissipation performance, high-temperature wear resistance and low manufacturing cost.
The embodiment discloses a manufacturing process of the composite bar, and an outer layer is prepared; the outer layer is made of a material with the conductivity of more than 55 Mega Siemens/m and is formed into a tubular form with a through central hole;
preparing an inner layer; the inner layer is made of a material with the conductivity of more than 53 million Siemens/m and the softening temperature of not less than 600 ℃, and the material of the inner layer is made into a rod-shaped form suitable for extending into the central hole of the outer layer;
penetrating the rod-shaped inner layer into the outer layer along one end of the penetrating central hole, so that the outer layer and the inner layer are subjected to cold-state combination or hot-state combination; when the outer layer and the inner layer are combined in a cold state, the bonding force of the outer layer and the inner layer is not lower than 0.8 kg/square centimeter, and the outer layer and the inner layer can be combined more tightly by the control design of the bonding force; preferably, the outer layer material is in a round tube state before combination, the inner layer material is in a round bar state before combination, and the surface cleanliness of the outer layer material and the inner layer material is not more than 200 mg/square meter, so that the outer layer material and the inner layer material are better combined.
The manufacturing process of the composite bar disclosed in the embodiment comprises the steps of firstly preparing an outer layer, wherein the outer layer is made of a material with the conductivity of more than 55 Mm Siemens/m and is formed into a tubular form with a through central hole; preparing an inner layer, wherein the inner layer is made of a material with the conductivity of more than 53 Mm Siemens/m and the softening temperature of not less than 600 ℃, and the material of the inner layer is made into a rod-shaped form suitable for extending into a central hole of the outer layer; finally, the rod-shaped inner layer is arranged in the central hole of the outer layer in a penetrating mode, and the outer layer and the inner layer are combined to form a composite bar; the manufacturing and using cost of the composite bar is low; the outer layer of the composite bar has excellent heat dissipation performance, and the inner layer has excellent high-temperature wear resistance and heat dissipation performance.
The embodiment discloses a contact tube made of the composite bar, as shown in a final state diagram of the contact tube in the attached figure 2, a wire guide hole 3 is formed in the center of an inner layer 2 of the composite bar through a single-edge cutting process; the tail part of the wire guide hole 3 is provided with a conical hole 6, the cross section area of the conical hole 6 is gradually reduced from outside to inside, and a welding wire can conveniently enter the wire guide hole; the front part of the composite bar in the embodiment is in a round table structure, and the corners of the round table structure are in smooth curved surface structures; the outer side surface of the tail part of the outer layer 1 of the composite bar is provided with an external thread 5, and a tool withdrawal groove 4 is arranged between the external thread 5 and the middle part of the outer layer 1.
In the embodiment, the composite bar material is used for manufacturing the conductive nozzle, the wire guide hole of the conductive nozzle is manufactured by a single-edge cutting process, and the wire guide hole manufactured by the process has excellent inner hole roughness, pore diameter and roundness, so that the high-temperature wear resistance of the wire guide hole is obviously improved while the electric conductivity and the heat dissipation performance of the conductive nozzle are ensured; the service life of the contact tube is prolonged; the present embodiment exemplifies only one structure of the contact tip, but the contact tip of the present invention is not limited to this structure.
A manufacturing process for manufacturing the contact tip, comprising:
manufacturing a composite bar: preparing an outer layer 1, wherein the outer layer 1 is made of a material with the conductivity of more than 55 megasiemens/meter and is formed into a tubular form with a through central hole; preparing an inner layer 2, wherein the inner layer 2 is made of a material with the conductivity of more than 53 Mm Siemens/m and the softening temperature of not less than 600 ℃, and the material of the inner layer 2 is made into a rod-shaped form suitable for extending into a central hole of the outer layer 1; penetrating a rod-shaped inner layer 2 into an outer layer 1 along one end of a penetrating central hole, and combining the outer layer 1 and the inner layer 2 to prepare a composite bar; the outer layer 1 and the inner layer 2 are combined in a drawing mode, an extruding mode, a rolling mode, a spinning mode, a heating and pressurizing mode or a welding mode or other combining modes; when the outer layer and the inner layer are subjected to cold bonding, the cold bonding in the embodiment comprises drawing, extruding, rolling and spinning, and when the cold bonding is adopted, the bonding force between the outer layer and the inner layer is not lower than 0.8 kg/square centimeter, and the bonding force can be controlled and designed to enable the outer layer and the inner layer to be bonded more firmly; the length of the composite bar material after the outer layer 1 and the inner layer 2 are combined is not less than 0.2 m;
manufacturing a contact tube; as shown in fig. 2, firstly, the composite bar is processed to the length required by the contact tip, and the composite bar is cut to the length required by the contact tip by turning, milling, sawing, punching and the like in the processing process; then, a wire guide hole 3 is formed in the center of the inner layer 2 of the processed composite bar through a single-edge drilling process, the wire guide hole 3 is manufactured through a single-edge drilling, non-tool-retracting and one-time drilling forming process, the consistency of the surface quality of the hole wall of the wire guide hole 3 can be ensured in the manufacturing process of the wire guide hole 3, the properties of roughness, aperture and roundness of the wire guide hole 3 are ensured to be excellent, and the consistency of the aperture of the wire guide hole 3 is ensured; and finally, machining and forming the appearance of the contact tube by machining, wherein the appearance of the contact tube can be machined by turning and milling or other machining modes.
The manufacturing process of the contact tube disclosed in the embodiment comprises the steps of firstly manufacturing a composite bar, wherein the composite bar is formed by adopting a high-conductivity heat dissipation material and a high-temperature wear-resistant material; the manufacturing of the wire guide hole can ensure the consistency of the surface quality of the hole wall of the wire guide hole, ensure the excellent performances of the roughness, the aperture and the roundness of the wire guide hole and ensure the consistency of the aperture of the wire guide hole.
Example 2: the structure schematic diagram of the contact tube in the embodiment is shown in fig. 3, the center of the inner layer 2 of the composite bar is provided with a wire guide hole 3 through a single-edge cutting process; the tail part of the wire guide hole 3 is provided with a conical hole 6, the cross section area of the conical hole 6 is gradually reduced from outside to inside, and a welding wire can conveniently enter the wire guide hole; in the embodiment, the front part of the outer layer of the composite bar is in a round table structure, and the corners of the round table structure are in smooth curved surface structures; in the embodiment, the composite bar material is used for manufacturing the conductive nozzle, the wire guide hole of the conductive nozzle is manufactured by a single-edge cutting process, and the wire guide hole manufactured by the process has excellent inner hole roughness, pore diameter and roundness, so that the high-temperature wear resistance of the wire guide hole is obviously improved while the electric conductivity and the heat dissipation performance of the conductive nozzle are ensured; the service life of the contact tube is prolonged. The manufacturing process of the composite bar and the conductive nozzle in the embodiment are the same as those in embodiment 1; the present embodiment merely exemplifies one structure of the contact tip, but the contact tip of the present invention is not limited to this structure.
Example 3: the structure schematic diagram of the contact tube in the embodiment is shown in fig. 4, the center of the inner layer 2 of the composite bar is provided with a wire guide hole 3 through a single-edge cutting process; the tail part of the wire guide hole 3 is provided with a conical hole 6, the cross section area of the conical hole 6 is gradually reduced from outside to inside, and a welding wire can conveniently enter the wire guide hole 3; in the embodiment, the corners of the front part and the tail part of the outer layer of the composite bar are smooth curved surface structures; in the embodiment, the composite bar material is used for manufacturing the conductive nozzle, the wire guide hole of the conductive nozzle is manufactured by a single-edge cutting process, and the wire guide hole manufactured by the process has excellent inner hole roughness, pore diameter and roundness, so that the high-temperature wear resistance of the wire guide hole is obviously improved while the electric conductivity and the heat dissipation performance of the conductive nozzle are ensured; the service life of the contact tube is prolonged. The manufacturing process of the composite bar and the conductive nozzle in the embodiment are the same as those in embodiment 1; the present embodiment merely exemplifies one structure of the contact tip, but the contact tip of the present invention is not limited to this structure.
Example 4: the structure schematic diagram of the contact tube in the embodiment is shown in fig. 5, the center of the inner layer 2 of the composite bar is provided with a wire guide hole 3 through a single-edge cutting process; the tail part of the wire guide hole 3 is provided with a conical hole 6, the cross section area of the conical hole 6 is gradually reduced from outside to inside, and a welding wire can conveniently enter the wire guide hole 3; a tool withdrawal groove 4 is arranged on the outer circumference of the middle part of the outer layer of the composite bar; in the embodiment, the front part of the outer layer of the composite bar is in a round table structure, and the corners of the round table structure are in smooth curved surface structures; the edge of the outer layer tail of the composite bar is of a smooth curved surface structure; in the embodiment, the composite bar material is used for manufacturing the conductive nozzle, the wire guide hole of the conductive nozzle is manufactured by a single-edge cutting process, and the wire guide hole manufactured by the process has excellent inner hole roughness, pore diameter and roundness, so that the high-temperature wear resistance of the wire guide hole is obviously improved while the electric conductivity and the heat dissipation performance of the conductive nozzle are ensured; the service life of the contact tube is prolonged. The manufacturing process of the composite bar and the conductive nozzle in the embodiment are the same as those in embodiment 1; the present embodiment merely exemplifies one structure of the contact tip, but the contact tip of the present invention is not limited to this structure.
Example 5: the structure schematic diagram of the contact tube in the embodiment is shown in fig. 6, the center of the inner layer 2 of the composite bar is provided with a wire guide hole 3 through a single-edge cutting process; the tail part of the wire guide hole 3 is provided with a conical hole 6, the cross section area of the conical hole 6 is gradually reduced from outside to inside, and a welding wire can conveniently enter the wire guide hole 3; the outer part of the conical hole 6 is of a cylindrical hole structure; a tool withdrawal groove 4 is arranged on the outer circumference of the middle part of the outer layer of the composite bar; in the embodiment, the front part of the outer layer of the composite bar is in a round table structure, and the corners of the round table structure are in smooth curved surface structures; the edge of the outer layer tail of the composite bar is of a smooth curved surface structure; in the embodiment, the composite bar material is used for manufacturing the conductive nozzle, the wire guide hole of the conductive nozzle is manufactured by a single-edge cutting process, and the wire guide hole manufactured by the process has excellent inner hole roughness, pore diameter and roundness, so that the high-temperature wear resistance of the wire guide hole is obviously improved while the electric conductivity and the heat dissipation performance of the conductive nozzle are ensured; the service life of the contact tube is prolonged. The manufacturing process of the composite bar and the conductive nozzle in the embodiment are the same as those in embodiment 1; the present embodiment merely exemplifies one structure of the contact tip, but the contact tip of the present invention is not limited to this structure.
Example 6: the structure schematic diagram of the contact tube in the embodiment is shown in fig. 7, the center of the inner layer 2 of the composite bar is provided with a wire guide hole 3 through a single-edge cutting process; the tail part of the wire guide hole 3 is provided with a conical hole 6, the cross section area of the conical hole 6 is gradually reduced from outside to inside, and a welding wire can conveniently enter the wire guide hole 3; the outer side surface of the outer layer tail of the composite bar is provided with an external thread, and a tool withdrawal groove is arranged between the external thread and the middle part of the outer layer; the diameter of the outer layer between the external thread and the tool withdrawal groove is smaller than that of the outer layer at the front side of the tool withdrawal groove; a tool withdrawal groove 4 is arranged on the outer circumference of the middle part of the outer layer of the composite bar; in the embodiment, the front part of the outer layer of the composite bar is in a round table structure, and the corners of the round table structure are in smooth curved surface structures; the edge of the outer layer tail of the composite bar is of a smooth curved surface structure; in the embodiment, the composite bar material is used for manufacturing the conductive nozzle, the wire guide hole of the conductive nozzle is manufactured by a single-edge cutting process, and the wire guide hole manufactured by the process has excellent inner hole roughness, pore diameter and roundness, so that the high-temperature wear resistance of the wire guide hole is obviously improved while the electric conductivity and the heat dissipation performance of the conductive nozzle are ensured; the service life of the contact tube is prolonged. The manufacturing process of the composite bar and the conductive nozzle in the embodiment are the same as those in embodiment 1; the present embodiment merely exemplifies one structure of the contact tip, but the contact tip of the present invention is not limited to this structure.
As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited thereto. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A composite rod, comprising:
an outer layer, the inner wall of the outer layer defining a central aperture therethrough; the outer layer is made of a conductive material with the conductivity of more than 55 Mega Siemens/m;
an inner layer cold or hot bonded to the outer layer; the inner layer is made of a conductive material with the conductivity of more than 53 MmeSiemens/m and the softening temperature of not less than 600 ℃.
2. The composite bar of claim 1, wherein the outer layer and the inner layer are bonded together at a bonding force of not less than 0.8 kg/cm when the outer layer and the inner layer are bonded together at a cold state.
3. A composite rod according to claim 2 wherein the inner layer is present in the composite rod in an amount of from 0.05 to 60% by volume.
4. A manufacturing process of a composite bar is characterized in that,
preparing an outer layer; the outer layer is made of a material with the conductivity of more than 55 Mega Siemens/m and is formed into a tubular form with a through central hole;
preparing an inner layer; the inner layer is made of a material with the conductivity of more than 53 Mm Siemens/m and the softening temperature of not less than 600 ℃, and the material of the inner layer is made into a rod-shaped form which is suitable for extending into the central hole of the outer layer;
and penetrating the rod-shaped inner layer into the outer layer along one end of the penetrating central hole, so that the outer layer and the inner layer are subjected to cold-state bonding or hot-state bonding.
5. A contact tube made of the composite bar of any one of claims 1 to 3, wherein the center of the inner layer of the composite bar is provided with a wire guide hole by a single-edge cutting process.
6. The contact tube according to claim 5, wherein the end of the wire guide hole is provided with a tapered hole; the outer side face of the tail of the outer layer of the composite bar is provided with an external thread, and a tool withdrawal groove is formed between the external thread and the middle of the outer layer.
7. The contact tip as claimed in claim 6, wherein the diameter of the outer layer between the external thread and the relief groove is smaller than the diameter of the outer layer on the front side of the relief groove.
8. The contact tube according to claim 5, wherein the tail part of the wire guide hole is provided with a tapered hole, and the outer part of the tapered hole is in a cylindrical hole structure.
9. A process for making the contact tip of claim 5, comprising:
manufacturing a composite bar: preparing an outer layer of a material having a conductivity greater than 55 megasiemens/meter and formed into a tubular form with a central bore therethrough; preparing an inner layer, wherein the inner layer is made of a material with the conductivity of more than 53 Mm Siemens/m and the softening temperature of not less than 600 ℃, and the material of the inner layer is made into a rod-shaped form suitable for extending into a central hole of the outer layer; penetrating the rod-shaped inner layer into the outer layer along one end of the penetrating central hole, and combining the outer layer and the inner layer to form a composite bar;
manufacturing a contact tube; firstly, processing the composite bar to the length required by a contact tube; then, forming a wire guide hole in the center of the inner layer of the processed composite bar by a single-edge drilling process, wherein the wire guide hole is manufactured by adopting a single-edge drilling, non-tool-retracting and one-time drilling forming process; and finally, machining and forming the appearance of the contact tube by machining.
10. The process of claim 9, wherein the length of the composite rod after the outer and inner layers are combined is not less than 0.2 m; the outer layer and the inner layer are combined in a drawing, extruding, rolling, spinning, heating and pressurizing or welding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2239204A (en) * | 1989-12-21 | 1991-06-26 | Toyota Motor Co Ltd | Contact tip for arc welding |
| CN1268079A (en) * | 1997-08-30 | 2000-09-27 | 亚历山大·宾策尔焊接技术两合公司 | Flow nozzle |
| CN1988054A (en) * | 2006-12-25 | 2007-06-27 | 苏州东金机械金属有限公司 | Combined material of aluminum oxide fringing copper and chromium-copper alloy and its producing method and use |
| CN106756135A (en) * | 2016-11-11 | 2017-05-31 | 陕西斯瑞新材料股份有限公司 | A kind of preparation method of alumina dispersion-strenghtened copper alloy bar material |
| CN107755864A (en) * | 2016-08-23 | 2018-03-06 | 天津维尔丁科技有限公司 | A kind of carbon dioxide gas arc welding ignition tip |
| CN108057732A (en) * | 2017-12-05 | 2018-05-22 | 中铝洛阳铜加工有限公司 | A kind of preparation method of dispersion-strengthened Cu and oxygen-free copper composite bar |
| CN109801756A (en) * | 2017-11-17 | 2019-05-24 | 北京有色金属研究总院 | A kind of Copper-Aluminum compound wire rod preparation method |
| CN208913333U (en) * | 2018-10-26 | 2019-05-31 | 天津维尔丁科技股份有限公司 | A kind of ignition tip |
-
2020
- 2020-09-15 CN CN202010966169.8A patent/CN112171031A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2239204A (en) * | 1989-12-21 | 1991-06-26 | Toyota Motor Co Ltd | Contact tip for arc welding |
| CN1268079A (en) * | 1997-08-30 | 2000-09-27 | 亚历山大·宾策尔焊接技术两合公司 | Flow nozzle |
| CN1988054A (en) * | 2006-12-25 | 2007-06-27 | 苏州东金机械金属有限公司 | Combined material of aluminum oxide fringing copper and chromium-copper alloy and its producing method and use |
| CN107755864A (en) * | 2016-08-23 | 2018-03-06 | 天津维尔丁科技有限公司 | A kind of carbon dioxide gas arc welding ignition tip |
| CN106756135A (en) * | 2016-11-11 | 2017-05-31 | 陕西斯瑞新材料股份有限公司 | A kind of preparation method of alumina dispersion-strenghtened copper alloy bar material |
| CN109801756A (en) * | 2017-11-17 | 2019-05-24 | 北京有色金属研究总院 | A kind of Copper-Aluminum compound wire rod preparation method |
| CN108057732A (en) * | 2017-12-05 | 2018-05-22 | 中铝洛阳铜加工有限公司 | A kind of preparation method of dispersion-strengthened Cu and oxygen-free copper composite bar |
| CN208913333U (en) * | 2018-10-26 | 2019-05-31 | 天津维尔丁科技股份有限公司 | A kind of ignition tip |
Non-Patent Citations (2)
| Title |
|---|
| 张军: "《电工材料实用手册》", 31 May 2018 * |
| 成都电焊机厂: "《次级整流电阻焊机》", 31 December 1978 * |
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