CN109014550B - Nickel steel titanium explosive welding composite pipe production method, composite pipe and reaction kettle - Google Patents
Nickel steel titanium explosive welding composite pipe production method, composite pipe and reaction kettle Download PDFInfo
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- CN109014550B CN109014550B CN201811137057.0A CN201811137057A CN109014550B CN 109014550 B CN109014550 B CN 109014550B CN 201811137057 A CN201811137057 A CN 201811137057A CN 109014550 B CN109014550 B CN 109014550B
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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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/06—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of high energy impulses, e.g. magnetic energy
- B23K20/08—Explosive welding
- B23K20/085—Explosive welding for tubes, e.g. plugging
-
- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/26—Auxiliary equipment
Abstract
The application relates to a production method of a titanium steel nickel explosive welding composite pipe, which comprises the steps of pipe selection, explosive configuration, preparation before welding of the titanium steel composite pipe, titanium steel composite pipe installation, titanium steel composite pipe explosive welding, titanium steel composite pipe annealing, titanium steel composite pipe detection and inspection damage, correction and surface polishing, preparation before welding of the titanium steel nickel composite pipe, titanium steel nickel composite pipe explosive welding, titanium steel nickel composite pipe annealing, titanium steel nickel composite pipe detection and inspection damage, correction and surface polishing. Overcomes the defects of poor combination, bulge, large-area melting, surface burn, explosion deformation, explosion brittle fracture, poor combination of detonator areas, edge fracture, explosion injury and the like commonly existing in the related composite pipe, and ensures the performance of the finished product made of the composite pipe.
Description
Technical Field
The application relates to the field of metal processing, in particular to a nickel steel titanium explosive welding composite pipe production method, a composite pipe and a reaction kettle.
Background
The metal composite pipe is characterized in that one layer of metal pipe is covered with another metal pipe, so that the effects of saving resources and reducing cost are achieved on the premise of not reducing the using effect (corrosion resistance, mechanical strength and the like). The compounding method generally includes explosive compounding, explosive rolling compounding, rolling compounding and the like. The method is mainly applied to the industries of corrosion prevention, pressure vessel manufacturing, electricity construction, petrifaction, medicine, light industry, automobiles and the like. The explosion welding is a method for realizing welding by using impact force generated by explosion of explosive to cause rapid collision of workpieces. The welding is carried out by utilizing the shock wave generated when the explosive explodes to enable the metal to be impacted at a high speed and combined in a very short metallurgical process. The explosion welding head often forms a wavy interface, the bonding strength is high, and the interface resistance is small. The explosion welding equipment is simple, the production cost is low, and the method is suitable for industrial production.
Titanium alloy is widely used in various fields because of its high strength, good corrosion resistance, high heat resistance, etc. However, titanium alloys have poor formability and poor weldability, which limits their use. The titanium-based alloy (such as titanium steel alloy and titanium aluminum alloy) composite pipe manufactured by explosion welding is easy to generate defects of poor combination, bulge, large-area melting, surface burn, explosion deformation, explosion brittle fracture, poor combination of detonator zone, edge fracture, explosion injury and the like due to imperfect welding parameters and welding process, and the performance of the finished product made of the titanium-based alloy composite pipe is limited.
The related reaction kettles are widely made of stainless steel, and in order to cope with high-temperature and high-pressure reaction, part of the reaction kettles are made of titanium steel alloy, so that the characteristics of good heat resistance and high strength of titanium alloy are utilized, but in the long-period use process, the defects of corrosion, pitting corrosion and the like of the inner layer of the reaction kettles are found, cracks are seriously generated, and the safety of reaction production is endangered.
Disclosure of Invention
At least one object of the present application is to provide a method for producing a nickel steel titanium explosive welding composite pipe which overcomes the defects of the related explosive welding, the composite pipe produced by the method and a reaction kettle made of the composite pipe.
In order to achieve the above purpose, the application adopts the following technical scheme:
the production method of the titanium steel nickel explosion welding composite pipe is characterized by comprising the following steps of:
selecting a pipe, namely selecting a stainless steel pipe with an inner diameter of 50 mm and a wall thickness of 3.4 mm, a titanium alloy pipe with an inner diameter of 42 mm and a wall thickness of 1.5 mm and a nickel alloy pipe with an inner diameter of 33 mm and a wall thickness of 0.7 mm;
preparing an explosive, namely preparing an explosive with mass fractions of 33% TNT, 30% industrial salt, 25% perlite and 12% saw dust;
preparing a titanium steel composite pipe before welding, removing greasy dirt and impurities on the surface of a stainless steel pipe by using acetone, and cleaning an oxide film, greasy dirt and impurities on the surface of a titanium alloy pipe by using a solution of 45% nitric acid, 5% hydrofluoric acid and 50% water in mass fraction;
a titanium steel composite pipe is installed, the stainless steel pipe and the titanium alloy pipe are assembled, the spacing is controlled to be between 0.7 mm and 0.8 mm, 80 g to 100 g of explosive is filled per 100 mm of pipe height according to the height of the composite pipe, and a water glass buffer layer is filled between the explosive and the titanium alloy pipe;
explosive welding of a titanium steel composite pipe, namely placing the stainless steel pipe and the titanium alloy pipe into a fixed clamping die, installing a detonator at a reserved position, and then detonating and welding;
annealing the titanium steel composite pipe, namely, annealing the titanium steel composite pipe obtained by explosive welding in a constant temperature environment of 500-750 ℃ for 3-10 hours;
detecting and inspecting the damage of the titanium steel composite pipe, correcting and polishing the surface, detecting and inspecting the damage of the annealed and cooled titanium steel composite pipe, and putting the titanium steel composite pipe into a circular pipe correcting machine for correction after the detection and inspection damage of the carbon steel composite pipe meets the requirements, and polishing the surface;
preparing a titanium steel nickel composite pipe before welding, uniformly polishing at least 4 stress grooves with the depth of more than 0.01 mm in the titanium steel composite pipe by taking the titanium steel composite pipe as a base pipe, cleaning the nickel alloy pipe by alcohol, placing the nickel alloy pipe into the titanium steel composite pipe, filling 30-55 g of explosive per 100 mm of height of the composite pipe, and filling an asphalt and water glass mixture buffer layer between the explosive and the titanium alloy pipe;
explosive welding a titanium steel nickel composite pipe, putting the titanium steel composite pipe and the nickel alloy pipe into a fixed clamping die, installing a detonator at a reserved position, and then detonating and welding;
annealing the titanium steel nickel composite pipe, namely placing the titanium steel composite pipe obtained by explosive welding in a constant temperature environment of 300-450 ℃ for 3-10 hours;
detecting and checking the damage of the titanium steel nickel composite pipe, correcting and polishing the surface, detecting and checking the damage of the annealed and cooled titanium steel nickel composite pipe, and placing the titanium steel nickel composite pipe in a circular pipe correcting machine for correcting after the detection and checking of the carbon steel nickel composite pipe meets the requirements, and polishing the surface.
In some embodiments, the reserved locations of the detonator are communicated to an interior center of the stainless steel tube or the titanium steel composite tube.
In some embodiments the method of producing further comprises: ultrasonic inspection is performed, and ultrasonic detection is utilized to detect the bonding condition of the titanium steel composite pipe or the interface of the titanium steel nickel composite pipe.
In some embodiments, the ultrasound procedure further comprises: and quantitatively measuring the bonding area of the titanium steel composite pipe or the titanium steel nickel composite pipe, and judging that the titanium steel composite pipe or the titanium steel nickel composite pipe is unqualified when the bonding area is smaller than 7.5% of the total cross-section area where the bonding point is located.
In some embodiments, the explosive configuration further comprises: homogenizing the explosive, and uniformly stirring the configured explosive under the condition of avoiding fire.
The application also provides a titanium steel nickel explosive welding composite pipe, which is manufactured by using the production method of any titanium steel nickel explosive welding composite pipe.
The application also provides a reaction kettle which comprises a motor, a speed reducer, a frame, a mechanical seal, an upper end socket, a support, an inner coil pipe, a barrel, an outer coil pipe, a lower end socket, a stirring paddle, a kettle bottom shaft and a heating pipe, and is characterized in that the barrel is made of the titanium steel nickel explosion welding composite pipe.
Compared with the prior art, the production method of the application adopting the technical scheme has the advantages that:
overcome the bad combination: after explosion welding, the good detonation position ensures the majority of the combination between the abdominal tube and the base tube through the explosive with lower detonation velocity, and the combination strength is higher;
overcomes the bulge: proper explosive amount is selected, and the space between the explosion welding abdominal tube and the base tube is ensured through a die, so that good exhaust conditions are formed, and the local bulge on the composite tube is prevented from being filled with gas to form bulge;
prevent large area from melting: through the low detonation velocity explosive and the medium detonation method, good exhaust conditions are created, and the phenomenon that the metal pipe joint surface is melted in a large area is reduced and eliminated;
preventing surface burns: the low detonation velocity explosive is used, and a protective layer such as water glass, asphalt and the like is arranged between the explosive and the pipe to prevent the belly pipe from being burnt by explosion thermal oxidation;
explosion deformation is prevented: stainless steel is used as a base pipe, and after explosion welding, rounding and surface treatment are carried out, so that macroscopic and irregular changes of the sizes and the shapes of the composite pipe in the axial direction, the circumferential direction and the radial direction are prevented;
explosion embrittlement prevention: the high-temperature-resistant titanium alloy tube and the nickel alloy tube are used as the covering tube, so that explosion embrittlement phenomenon caused by low impact resistance of the covering tube at normal temperature is avoided;
reducing the unbound area of the detonator zone: the detonator detonating point is arranged in the center of the pipe, so that the phenomenon that the bonding condition of a detonator area is poor and the bonding area is overlarge due to insufficient energy and unsmooth exhaust is prevented, and the adverse effect of the overlarge bonding area on the strength of the composite pipe is prevented through ultrasonic inspection;
prevent edge cracking: the explosive amount of the edge of the pipe is reduced, the size of the covered pipe is increased, and a circumferential stress groove is formed, so that the edge cracking phenomenon is reduced and eliminated;
prevent explosion injury: through explosive homogenization treatment, the blocking and uneven distribution of the explosive are prevented, the excessive local energy is avoided, or solid hard substances mixed with oil in the explosive are avoided, pits or furrows are avoided when the solid hard substances strike the surface of the covered pipe, and the surface quality is influenced.
Compared with the prior art, the composite pipe and the reaction kettle adopting the technical scheme have the advantages that:
compared with the related titanium steel composite pipe, the nickel alloy is welded by covering, so that the chemical corrosion resistance of the composite pipe is enhanced, the sensitivity of surface or internal defects to high-temperature and high-pressure reactions is reduced, the generation of internal cracks is reduced, and the production and use safety of the pipe and the reaction kettle are ensured.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a schematic flow chart of a production method of a nickel steel titanium explosive welding composite pipe;
FIG. 2 is a schematic illustration of a reactor made of nickel steel titanium explosive welded composite tubing.
In the figure: 1-motor, 2-reduction gear, 3-frame, 4-mechanical seal, 5-upper head, 6-support, 7-interior coil pipe, 8-barrel, 9-outer coil pipe, 10-lower head, 11-stirring rake, 12-cauldron bottom shaft and 13-heating pipe.
Detailed Description
The details of the application and the differences between the application and the prior art will be understood with reference to the accompanying figures 1-2 and the text.
It should be noted that: any technical feature and any technical solution in this embodiment are one or several of various optional technical features or optional technical solutions, and in order to describe brevity, all of the optional technical features and the optional technical solutions of the present application cannot be exhausted in this document, and it is inconvenient for an implementation of each technical feature to emphasize that it is one of various optional implementations, so those skilled in the art should know: any one of the technical means provided by the application can be replaced or any two or more of the technical means or technical features provided by the application can be mutually combined to obtain a new technical scheme.
Any technical features and any technical solutions in the present embodiment do not limit the protection scope of the present application, and the protection scope of the present application should include any alternative technical solution that can be conceived by a person skilled in the art without performing creative efforts, and a new technical solution obtained by combining any two or more technical means or technical features provided by the present application with each other by a person skilled in the art.
At least one object of the application is to provide a method for producing a titanium steel nickel explosive welding composite pipe, which is characterized by comprising the following steps:
selecting a pipe, namely selecting a stainless steel pipe with an inner diameter of 50 mm and a wall thickness of 3.4 mm, a titanium alloy pipe with an inner diameter of 42 mm and a wall thickness of 1.5 mm and a nickel alloy pipe with an inner diameter of 33 mm and a wall thickness of 0.7 mm;
preparing an explosive, namely preparing an explosive with mass fractions of 33% TNT, 30% industrial salt, 25% perlite and 12% saw dust;
preparing a titanium steel composite pipe before welding, removing greasy dirt and impurities on the surface of a stainless steel pipe by using acetone, and cleaning an oxide film, greasy dirt and impurities on the surface of a titanium alloy pipe by using a solution of 45% nitric acid, 5% hydrofluoric acid and 50% water in mass fraction;
a titanium steel composite pipe is installed, the stainless steel pipe and the titanium alloy pipe are assembled, the spacing is controlled to be between 0.7 mm and 0.8 mm, 80 g to 100 g of explosive is filled per 100 mm of pipe height according to the height of the composite pipe, and a water glass buffer layer is filled between the explosive and the titanium alloy pipe;
explosive welding of a titanium steel composite pipe, namely placing the stainless steel pipe and the titanium alloy pipe into a fixed clamping die, installing a detonator at a reserved position, and then detonating and welding;
annealing the titanium steel composite pipe, namely, annealing the titanium steel composite pipe obtained by explosive welding in a constant temperature environment of 500-750 ℃ for 3-10 hours;
detecting and inspecting the damage of the titanium steel composite pipe, correcting and polishing the surface, detecting and inspecting the damage of the annealed and cooled titanium steel composite pipe, and putting the titanium steel composite pipe into a circular pipe correcting machine for correction after the detection and inspection damage of the carbon steel composite pipe meets the requirements, and polishing the surface;
preparing a titanium steel nickel composite pipe before welding, uniformly polishing at least 4 stress grooves with the depth of more than 0.01 mm in the titanium steel composite pipe by taking the titanium steel composite pipe as a base pipe, cleaning the nickel alloy pipe by alcohol, placing the nickel alloy pipe into the titanium steel composite pipe, filling 30-55 g of explosive per 100 mm of height of the composite pipe, and filling an asphalt and water glass mixture buffer layer between the explosive and the titanium alloy pipe;
explosive welding a titanium steel nickel composite pipe, putting the titanium steel composite pipe and the nickel alloy pipe into a fixed clamping die, installing a detonator at a reserved position, and then detonating and welding;
annealing the titanium steel nickel composite pipe, namely placing the titanium steel composite pipe obtained by explosive welding in a constant temperature environment of 300-450 ℃ for 3-10 hours;
detecting and checking the damage of the titanium steel nickel composite pipe, correcting and polishing the surface, detecting and checking the damage of the annealed and cooled titanium steel nickel composite pipe, and placing the titanium steel nickel composite pipe in a circular pipe correcting machine for correcting after the detection and checking of the carbon steel nickel composite pipe meets the requirements, and polishing the surface.
In some embodiments, the reserved locations of the detonator are communicated to an interior center of the stainless steel tube or the titanium steel composite tube.
In some embodiments the method of producing further comprises: ultrasonic inspection is performed, and ultrasonic detection is utilized to detect the bonding condition of the titanium steel composite pipe or the interface of the titanium steel nickel composite pipe.
In some embodiments, the ultrasound procedure further comprises: and quantitatively measuring the bonding area of the titanium steel composite pipe or the titanium steel nickel composite pipe, and judging that the titanium steel composite pipe or the titanium steel nickel composite pipe is unqualified when the bonding area is smaller than 7.5% of the total cross-section area where the bonding point is located.
In some embodiments, the explosive configuration further comprises: homogenizing the explosive, and uniformly stirring the configured explosive under the condition of avoiding fire.
The application also provides a titanium steel nickel explosive welding composite pipe, which is manufactured by using the production method of any titanium steel nickel explosive welding composite pipe.
The application also provides a reaction kettle which comprises a motor 1, a speed reducer 2, a frame 3, a mechanical seal 4, an upper sealing head 5, a support 6, an inner coil 7, a cylinder 8, an outer coil 9, a lower sealing head 10, a stirring paddle 11, a kettle bottom shaft 12 and a heating pipe 13, and is characterized in that the cylinder is made of the titanium steel nickel explosion welding composite pipe according to the above.
Compared with the prior art, the production method of the application adopting the technical scheme has the advantages that:
overcome the bad combination: after explosion welding, the good detonation position ensures the majority of the combination between the abdominal tube and the base tube through the explosive with lower detonation velocity, and the combination strength is higher;
overcomes the bulge: proper explosive amount is selected, and the space between the explosion welding abdominal tube and the base tube is ensured through a die, so that good exhaust conditions are formed, and the local bulge on the composite tube is prevented from being filled with gas to form bulge;
prevent large area from melting: through the low detonation velocity explosive and the medium detonation method, good exhaust conditions are created, and the phenomenon that the metal pipe joint surface is melted in a large area is reduced and eliminated;
preventing surface burns: the low detonation velocity explosive is used, and a protective layer such as water glass, asphalt and the like is arranged between the explosive and the pipe to prevent the belly pipe from being burnt by explosion thermal oxidation;
explosion deformation is prevented: stainless steel is used as a base pipe, and after explosion welding, rounding and surface treatment are carried out, so that macroscopic and irregular changes of the sizes and the shapes of the composite pipe in the axial direction, the circumferential direction and the radial direction are prevented;
explosion embrittlement prevention: the high-temperature-resistant titanium alloy tube and the nickel alloy tube are used as the covering tube, so that explosion embrittlement phenomenon caused by low impact resistance of the covering tube at normal temperature is avoided;
reducing the unbound area of the detonator zone: the detonator detonating point is arranged in the center of the pipe, so that the phenomenon that the bonding condition of a detonator area is poor and the bonding area is overlarge due to insufficient energy and unsmooth exhaust is prevented, and the adverse effect of the overlarge bonding area on the strength of the composite pipe is prevented through ultrasonic inspection;
prevent edge cracking: the explosive amount of the edge of the pipe is reduced, the size of the covered pipe is increased, and a circumferential stress groove is formed, so that the edge cracking phenomenon is reduced and eliminated;
prevent explosion injury: through explosive homogenization treatment, the blocking and uneven distribution of the explosive are prevented, the excessive local energy is avoided, or solid hard substances mixed with oil in the explosive are avoided, pits or furrows are avoided when the solid hard substances strike the surface of the covered pipe, and the surface quality is influenced.
Compared with the prior art, the composite pipe and the reaction kettle adopting the technical scheme have the advantages that:
compared with the related titanium steel composite pipe, the nickel alloy is welded by covering, so that the chemical corrosion resistance of the composite pipe is enhanced, the sensitivity of surface or internal defects to high-temperature and high-pressure reactions is reduced, the generation of internal cracks is reduced, and the production and use safety of the pipe and the reaction kettle are ensured.
Any of the above-described embodiments of the present application disclosed herein, unless otherwise stated, if they disclose a numerical range, then the disclosed numerical range is the preferred numerical range, as will be appreciated by those of skill in the art: the preferred numerical ranges are merely those of the many possible numerical values where technical effects are more pronounced or representative. Since the numerical values are more and cannot be exhausted, only a part of the numerical values are disclosed to illustrate the technical scheme of the application, and the numerical values listed above should not limit the protection scope of the application.
If the terms "first," "second," etc. are used herein to define a part, those skilled in the art will recognize that: the use of "first" and "second" is used merely to facilitate distinguishing between components and not otherwise stated, and does not have a special meaning.
Meanwhile, if the above application discloses or relates to parts or structural members fixedly connected with each other, the fixed connection may be understood as follows unless otherwise stated: detachably fixed connection (e.g. using bolts or screws) can also be understood as: the non-detachable fixed connection (e.g. riveting, welding), of course, the mutual fixed connection may also be replaced by an integral structure (e.g. integrally formed using a casting process) (except for obviously being unable to use an integral forming process).
In addition, terms used in any of the above-described aspects of the present disclosure to express positional relationship or shape have meanings including a state or shape similar to, similar to or approaching thereto unless otherwise stated. Any part provided by the application can be assembled by a plurality of independent components, or can be manufactured by an integral forming process.
In the description of the present application, if the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are used, the above terms refer to the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present application and simplifying the description, and do not refer to or suggest that the apparatus, mechanism, component or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the scope of protection of the present application.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application and not for limiting the same; while the application has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present application or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the application, it is intended to cover the scope of the application as claimed.
Claims (7)
1. The production method of the titanium steel nickel explosion welding composite pipe is characterized by comprising the following steps of:
selecting a pipe, namely selecting a stainless steel pipe with an inner diameter of 50 mm and a wall thickness of 3.4 mm, a titanium alloy pipe with an inner diameter of 42 mm and a wall thickness of 1.5 mm and a nickel alloy pipe with an inner diameter of 33 mm and a wall thickness of 0.7 mm;
preparing an explosive, namely preparing an explosive with mass fractions of 33% TNT, 30% industrial salt, 25% perlite and 12% saw dust;
preparing a titanium steel composite pipe before welding, removing greasy dirt and impurities on the surface of a stainless steel pipe by using acetone, and cleaning an oxide film, greasy dirt and impurities on the surface of a titanium alloy pipe by using a solution of 45% nitric acid, 5% hydrofluoric acid and 50% water in mass fraction;
a titanium steel composite pipe is installed, the stainless steel pipe and the titanium alloy pipe are assembled, the spacing is controlled to be between 0.7 mm and 0.8 mm, 80 g to 100 g of explosive is filled per 100 mm of pipe height according to the height of the composite pipe, and a water glass buffer layer is filled between the explosive and the titanium alloy pipe;
explosive welding of a titanium steel composite pipe, namely placing the stainless steel pipe and the titanium alloy pipe into a fixed clamping die, installing a detonator at a reserved position, and then detonating and welding;
annealing the titanium steel composite pipe, namely, annealing the titanium steel composite pipe obtained by explosive welding in a constant temperature environment of 500-750 ℃ for 3-10 hours;
detecting and inspecting damage to the titanium steel composite pipe, correcting and polishing the surface, detecting and inspecting the damage to the annealed and cooled titanium steel composite pipe, and placing the titanium steel composite pipe into a circular pipe correcting machine for correction after the titanium steel composite pipe detection and inspection damage meets the requirements, and polishing the surface;
preparing a titanium steel nickel composite pipe before welding, uniformly polishing at least 4 stress grooves with the depth of more than 0.01 mm in the titanium steel composite pipe by taking the titanium steel composite pipe as a base pipe, cleaning the nickel alloy pipe by alcohol, placing the nickel alloy pipe into the titanium steel composite pipe, filling 30-55 g of explosive per 100 mm of height of the composite pipe, and filling an asphalt and water glass mixture buffer layer between the explosive and the titanium alloy pipe;
explosive welding a titanium steel nickel composite pipe, putting the titanium steel composite pipe and the nickel alloy pipe into a fixed clamping die, installing a detonator at a reserved position, and then detonating and welding;
annealing the titanium steel nickel composite pipe, namely placing the titanium steel composite pipe obtained by explosive welding in a constant temperature environment of 300-450 ℃ for 3-10 hours;
detecting and inspecting damage to the titanium steel nickel composite pipe, correcting and polishing the surface, detecting and inspecting the damage to the annealed and cooled titanium steel nickel composite pipe, and placing the titanium steel nickel composite pipe in a circular pipe correcting machine for correcting after the titanium steel nickel composite pipe is detected and inspected to meet the requirements, and polishing the surface.
2. The production method according to claim 1, characterized in that: the reserved position of the detonator is communicated to the inner center of the stainless steel tube or the titanium steel composite tube.
3. The production method according to claim 1, characterized by further comprising:
ultrasonic inspection is performed, and ultrasonic detection is utilized to detect the bonding condition of the titanium steel composite pipe or the interface of the titanium steel nickel composite pipe.
4. The method of claim 3, wherein the ultrasonic inspection lesion further comprises:
and quantitatively measuring the bonding area of the titanium steel composite pipe or the titanium steel nickel composite pipe, and judging that the titanium steel composite pipe or the titanium steel nickel composite pipe is unqualified when the bonding area is smaller than 7.5% of the total cross-section area where the bonding point is located.
5. The method of claim 1, wherein the explosive configuration further comprises:
homogenizing the explosive, and uniformly stirring the configured explosive under the condition of avoiding fire.
6. A titanium steel nickel explosive welding composite pipe, characterized in that the titanium steel nickel explosive welding composite pipe is manufactured by the titanium steel nickel explosive welding composite pipe production method according to any one of claims 1-5.
7. The utility model provides a reation kettle, includes motor (1), reduction gear (2), frame (3), mechanical seal (4), upper end enclosure (5), support (6), interior coil pipe (7), barrel (8), outer coil pipe (9), low head (10), stirring rake (11), cauldron bottom shaft (12) and heating pipe (13), its characterized in that, barrel (8) are made by the titanium steel nickel explosive welding composite pipe of claim 6.
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| CN201811137057.0A CN109014550B (en) | 2018-09-30 | 2018-09-30 | Nickel steel titanium explosive welding composite pipe production method, composite pipe and reaction kettle |
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| CN110102865A (en) * | 2019-04-10 | 2019-08-09 | 安徽弘雷金属复合材料科技有限公司 | A kind of process of titanium/steel flange ring explosive welding |
| CN112975104A (en) * | 2021-02-03 | 2021-06-18 | 沈阳中钛装备制造有限公司 | Preparation method of titanium-tantalum composite tube |
| CN112809157A (en) * | 2021-02-03 | 2021-05-18 | 沈阳中钛装备制造有限公司 | Preparation method of steel nickel-tantalum composite pipe |
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| CN107283087A (en) * | 2017-07-31 | 2017-10-24 | 西安理工大学 | Titanium copper steel composite board flux-cored wire used for welding and its welding groove form |
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