CN106881564A - A kind of method that utilization thin-walled major diameter titanium welding pipe produces titanium matter cup/kettle - Google Patents
A kind of method that utilization thin-walled major diameter titanium welding pipe produces titanium matter cup/kettle Download PDFInfo
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- CN106881564A CN106881564A CN201710012576.3A CN201710012576A CN106881564A CN 106881564 A CN106881564 A CN 106881564A CN 201710012576 A CN201710012576 A CN 201710012576A CN 106881564 A CN106881564 A CN 106881564A
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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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
- C22F1/18—High-melting or refractory metals or alloys based thereon
- C22F1/183—High-melting or refractory metals or alloys based thereon of titanium or alloys based thereon
Abstract
Titanium plate base is made coiled strip by a kind of method that titanium matter cup/kettle is produced using the thin-walled major diameter titanium welding pipe, including titanium band production stage, titanium welding pipe production stage and titanium matter cup/kettle production stage, the present invention using hot rolling and cold rolling coil belt method;Titanium welding pipe shapes and to be made annealing treatment after welding, and obtains good intensity and plasticity matching;Titanium matter cup/kettle is produced using the method for bulging, the wall thickness for making the thin-walled large diameter welded pipe of titanium cup or titanium kettle is 0.4 ~ 0.8mm, 50 ~ 120mm of diameter.
Description
Technical field
The present invention relates to a kind of method that utilization thin-walled major diameter titanium welding pipe produces titanium matter cup/kettle.
Background technology
The corrosion resistance of the daily necessitiess such as titanium cup, titanium kettle is the several times of stainless steel, completely without Metal peculiar smell, prolonged resistance to
With;It is titanium articles for use high temperature resistant, low temperature resistant, can below 600 DEG C long-term use without being deformed, in low temperature -196 ~ -253
Remain to keep preferable ductility and toughness under DEG C environment, and do not have ice-cold sensation.Titanium is physiologically several to human body
All it is inert, is unique vegetative nerve and gustatory nerve to people and does not have the daily necessitiess such as effective metal, titanium cup, titanium kettle
Safety non-toxic, also light weight, firmly, it is small specific heat, low thermal conductivity, nontoxic and the features such as without anaphylaxis, in food and life
There is great potential in articles for use field.
Conventional wall thickness >=the 0.9mm of titanium seamless tubes, wall thickness is thicker, there are problems that the uniform yield rate of wall unevenness is low, and
From the titanium welding pipe of 0.4 ~ 0.9mm of wall thickness, economic benefit ratio seamless pipe more preferably, but processes seamless pipe of the wall thickness less than 0.9mm
Difficulty is big, and input cost is more.Because titanium has the characteristics such as excellent corrosion resistance, the U.S., Japan and France etc. in large-scale power
In the heat exchanger and condenser of nuclear power station, titanium thin walled welds pipe is widely applied, China progressively draws from the eighties in 20th century
A plurality of titanium welding pipe production line is entered, the titanium welding pipe of the various outer diameter specification of 0.5 ~ 2mm of wall thickness can have been produced.With China's electric power,
The development of nuclear power, desalinization and heat exchange industry, the application of thin-walled welding pipe is more and more, development is also increasingly faster, nowadays I
The annual production capacity of state's titanium welding pipe has been over 10,000 tons, and specifications and characteristics meets related international standard, and starts to method
The states such as state, Norway export titanium welding pipe.
Due to high yield rate, advantages, thin-walled welding pipe turns into a kind of trend of current tubing production, thin-walled major diameter titanium
The wall thickness of welded tube is generally 0.4 ~ 0.8mm, 50 ~ 120mm of diameter, but the principal element of restriction China titanium welding pipe development is titanium band
Quality is unqualified and the failure welding of large diameter welded pipe, when producing parts using titanium welding pipe, often cracking phenomenon, and
Cracking position majority is in weld seam annex;The indexs such as the mechanical property and machinability of titanium band and titanium tube are main by O and N content(Or O
Equivalent)Determined Deng impurity, O content increases, the difficulty of machining deformation will increase.Particularly TA1 titanium tubes material is soft, if during shaping
Speed and mould are mismatched, and easily cause the defect such as impression and scuffing, and undercut, step, weldering leakage and weld seam oxygen occur during welding
Change etc. defect and cause failure welding.In order to obtain the parts of good utilization thin-wall titanium welding pipe preparation, it is necessary to be directed to difference
Purposes select different titanium bands, while to control shaping, welding and annealing process, the good weldquality of acquisition.
The content of the invention
The purpose of the present invention is by being molded and welding, obtain the good thin-walled major diameter titanium welding pipe of weld seam, and provide one
Kind of the method that titanium matter cup/kettle is produced using the thin-walled major diameter titanium welding pipe, the 0.4 ~ 0.8mm of wall thickness of titanium welding pipe, diameter 50 ~
120mm。
To achieve the above object, the technical solution adopted in the present invention is:One kind is using the production of thin-walled major diameter titanium welding pipe
The method of titanium matter cup/kettle, comprises the following steps:
(1), titanium band production:Titanium plate base is taken, after titanium plate base is made into coiled strip using hot rolling and cold rolling coil belt method, will be rolled up
Band is placed in vacuum cover annealing, and the thickness of obtained finished titanium strip is 0.4 ~ 0.8mm, standby;
(2), titanium welding pipe production:The specification demands of the titanium welding pipe selected according to target size, by step(1)Obtained finished product titanium band
Material slitting cutting, width and the titanium welding pipe aimed dia size of slitting cutting match, using roller type cold bending shaping machine, by slitting
The finished titanium strip for cutting is bent into titanium tube, then using the automatic tungsten anode argon arc welding under argon atmosphere, the titanium that will be bent
The vertical weldering of pipe is welded into titanium welding pipe, pickling, cutting after annealing, and titanium welding pipe is obtained, standby;
(3), titanium matter cup/kettle production:The geomery of the titanium matter cup/kettle according to target, by step(3)Obtained titanium welding pipe cutting
It is the length of target size, the rubber mold that selection matches with target titanium matter cup/kettle geomery prepares titanium using bulging method
Matter cup/kettle.
Wherein, step(1)In titanium plate base use I grade of pure titanium of TA1, the control of titanium plate base composition is oxygen content≤0.07%.
Nitrogen content≤0.01%.
Wherein, step(1)In titanium plate base use II grade of pure titanium of TA1, the control of titanium plate base composition be oxygen content≤
0.06%.Nitrogen content≤0.008%.
Further, step(3)When preparing titanium matter cup/kettle using bulging method, the bulging rate of titanium welding pipe is no more than 20%.
Further, step(3)When preparing titanium matter cup/kettle using bulging method, the bulging rate of titanium welding pipe is 20 ~ 40%.
Wherein, step(1)Coiled strip is placed in vacuum cover annealing, annealing process is:Pressure-fired argon gas is protected,
600 ~ 700 DEG C of 1 ~ 10h of insulation.
Wherein, step(1)Middle hot-rolling method is rolled using Steckel mill, and coiled material enters temperature after often rolling a time
Spend in the high temperature furnace for 800 DEG C and wind, next passage is then rolled again;Step(1)Middle cold rolling coil belt method is rolled using reversible
Machine is cold rolling, wherein, the rolling process deflection of the coiled strip in cold rolling coil belt method is not less than 50%;Wherein, rolling process deflection refers to
The ratio between rolling Reducing thickness and ingoing ga(u)ge.
Wherein, step(1)4 ~ 9 grades of the grain size of obtained finished titanium strip, specification is the finished product titanium of 500mm × 500mm
The grain size number difference of band is no more than 0.5 grade.
Wherein, the vertical weldering of the titanium tube of bending is welded into titanium welding pipe, during welding, is welded to inner side from the outside of titanium tube,
Single-side welding double-side forming is realized, wherein, the weld seam of welding and the titanium tube base materials of minimum thickness > 90% of titanium tube base material intersection
Thickness, outside weld reinforcement≤0.05mm, inside weld reinforcement≤0.1mm, the hardness of weld metal zone is higher than titanium tube matrix hardness, the two
Difference < 30HV.
Wherein, step(2)The anneal processing steps of titanium welding pipe are:Titanium welding pipe is loaded into vaccum sensitive stove, vaccum sensitive stove
Temperature is 550 ~ 700 DEG C, is incubated 0.1 ~ 3min at such a temperature, and under argon atmosphere forced cooling to room temperature, then
Come out of the stove, test.
Wherein, step(3)The method for preparing titanium matter cup/kettle using bulging method is:Using consistent with titanium matter cup/kettle profile
Elastic mould is expanded into type in hydraulic press reclaimed water, and hydraulic pressure is 0 ~ 100MPa.
Step of the invention(1)Titanium plate base used:According to GB/T 2524-2010, I grade of pure titanium of TA1 is using being not less than 0
The titanium sponge smelting of level, the control of titanium plate base composition is oxygen content≤0.07%, nitrogen content≤0.01%, and other compositions meet GB/T
3620.1-2007;II grade of pure titanium of TA1 is using being not less than 0AThe titanium sponge smelting of level, the control of slab composition be oxygen content≤
0.06%th, nitrogen content≤0.008%, other compositions meet GB/T 3620.1-2007.
Step of the invention(2)Dimensional accuracy and performance of obtained finished titanium strip etc. meet GB/T 3621-2007 and
GB/T 3622-2012.Step of the present invention(2)The vertical weldering of the titanium tube of bending is welded into titanium welding pipe, the width of weld seam is no more than whole
The 10% of titanium welding pipe end face external diameter.
In the present invention, performance meets ASTM B265 or GB/T 3621, the titanium band with recrystallized structure and makes
Titanium welding pipe, step(2)Operation be:Slitting → shaping → welding → shaping → annealing → aligning → pickling → carrying out flaw detection → point
Cut → check → pack, the specification of obtained titanium welding pipe is:0.4 ~ 0.8mm wall thickness, diameter 50 ~ 120mm, every length≤15m;
Specification demands according to titanium welding pipe and by titanium band slitting cutting be the width for needing, i.e., the titanium weldering after the complete edge rolling of titanium strip width
The section circle of pipe, using the method for the bent shaping of roller type cold bending, tries one's best for reduction titanium tube surface tear and uses plastic mould, due to titanium
Elastic limit it is lower than steel, yield strength is higher than steel with coefficient of friction, and titanium resilience is big in shaping, and cold forming is difficult, shaping ratio
The roll quantity of demand pipe is more, and when such as three-stage is molded, every section of roll of shaping of steel pipe is 4 pairs, and titanium tube of the invention is every
Section shaping roll be 6 pairs so that titanium band shaping when load balancing, operate steadily, prevent shaping not exclusively, side wave and draw
The defects such as wound;Automatic tungsten anode argon arc welding is used during welding, energy is required(Voltage, electric current, speed of welding)Output is uniform and stable, makes
Weld seam is smooth without fluctuation, in addition, argon gas protection in welding, it is to avoid gaseous contamination in air, obtains good weldquality and height
Lumber recovery, weld seam do not have significant depressions, without obvious undercut, be not partially welded, welding oxidation tint without exception.Postwelding is moved back online
Fire, makes welded tube performance meet use requirement.
In the present invention, using I grade and II grade of TA1 titanium band, thin-walled major diameter titanium welding pipe is prepared by the method for argon arc welding,
Then bilayer/individual layer titanium kettle or titanium cup are produced by the method for bulging.I grade of elongation A of TA1 titanium bands50>=24%, II grade of TA1
The elongation A of titanium band50≥40%.Wherein, II grade of TA1 titanium welding pipe mainly makes abnormity, heavy caliber or has obvious thinning demand
Titanium cup or titanium kettle.
Titanium cup, the preparation of titanium kettle, the present invention belong to the solid matter of difficult deformation due to titanium using the method for bulging in crystallography
Hexagonal structure, slip system are few, plasticity is poor, and the present invention uses purity raw material high, and the plasticity and stampability of titanium are higher;And pipe
Material bulging method has the advantages that work flow is short, production efficiency is high, good product quality, makes the thin-walled major diameter of titanium cup or titanium kettle
The wall thickness of welded tube is 0.4 ~ 0.8mm, 50 ~ 120mm of diameter.Other daily necessitiess present invention may also apply to manufacture titanium matter.
High degree of automation, efficiency high, the low cost of titanium welding pipe production of the invention, bulging production titanium cup and titanium kettle technique
Flow relatively simple, efficiency high, wall thickness is more uniform, be capable of achieving the large-scale production of multi items;And make titanium cup and titanium kettle, with than
Intensity is high, light, durable and the various feature of profile, non-toxic in use, antibacterial, non-corrosive, easy cleaning and easily maintenance.And,
The present invention can prepare the titanium matter cup/kettle of individual layer, or Combination Welding is double-deck titanium matter cup/kettle.
Titanium plate base is made coiled strip by the present invention using hot rolling and cold rolling coil belt method, and cold working can make the mechanics of titanium
Performance, particularly yield strength are significantly increased, the performance range for even more than specifying.When titanium tube is welded, welding process is to pipe
The influence very little of material, because the width of Seam and heat effected zone is more much smaller than the girth of whole titanium welding pipe, weld width is no more than
The 10% of titanium welding pipe end face external diameter, weld metal zone hardness of the invention increases no more than matrix 30HV, the content of oxygen and nitrogen in weld metal zone
Increasing the mechanical property total on titanium tube does not influence significantly.Titanium welding pipe shapes and to be made annealing treatment after welding, and obtains good
Good intensity and plasticity matching.Require that the steady starting the arc, voltage and arc stability, welding energy change are small in welding process, from
And good weldquality is obtained, titanium welding pipe commissure should not have the defects such as misalignment, undercut, projection and depression.
Specific embodiment
With reference to specific embodiment, the invention will be further described, so that those skilled in the art can be more preferable
Understand the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine by any way.
Any feature disclosed in this specification (including any accessory claim, summary), unless specifically stated otherwise,
Equivalent by other or with similar purpose alternative features are replaced.I.e., unless specifically stated otherwise, each feature is a series of
An example in equivalent or similar characteristics.
The present invention is illustrated in conjunction with specific embodiments:
The purpose of the present invention is the titanium band for selecting heterogeneity and performance, and the good thin-walled of weld seam is obtained by being molded and welding
Titanium welding pipe(Wall thickness 0.4mm ~ 0.8mm, 50 ~ 120mm of diameter), it is adaptable to the product such as titanium cup or titanium kettle of different bulging demands.It is thin
Wall titanium welding pipe uses the method processing and fabricating cup kettle of water swelling(Insulation or general applications), the bulging of general titanium cup kettle inner bag or shell
Rate is no more than 20%, and the cup kettle bulging of large deformation requirement is no more than 40%.
A kind of method that utilization thin-walled major diameter titanium welding pipe produces titanium matter cup/kettle, comprises the following steps:(1), titanium band life
Produce:Titanium plate base is taken, after titanium plate base is made into coiled strip using hot rolling and cold rolling coil belt method, coiled strip vacuum bell-type is placed in
Furnace annealing, annealing process is:Pressure-fired argon gas is protected, and 1 ~ 10h, the thickness of obtained finished titanium strip are incubated at 600 ~ 700 DEG C
It is 0.4 ~ 0.8mm, it is standby;
(2), titanium welding pipe production:The specification demands of the titanium welding pipe selected according to target size, by step(1)Obtained finished product titanium band
Material slitting cutting, width and the titanium welding pipe aimed dia size of slitting cutting match, using roller type cold bending shaping machine, by slitting
The finished titanium strip for cutting is bent into titanium tube, then using the automatic tungsten anode argon arc welding under argon atmosphere, the titanium that will be bent
The vertical weldering of pipe is welded into titanium welding pipe, pickling, cutting after annealing, and titanium welding pipe is obtained, standby;
(3), titanium matter cup/kettle production:The geomery of the titanium matter cup/kettle according to target, by step(3)Obtained titanium welding pipe cutting
It is the length of target size, the rubber mold that selection matches with target titanium matter cup/kettle geomery prepares titanium using bulging method
Matter cup/kettle.
Wherein, step(1)In titanium plate base use I grade of pure titanium of TA1, the control of titanium plate base composition is oxygen content≤0.07%.
Nitrogen content≤0.01%.
Wherein, step(1)In titanium plate base use II grade of pure titanium of TA1, the control of titanium plate base composition be oxygen content≤
0.06%.Nitrogen content≤0.008%.
Wherein, step(3)When preparing titanium matter cup/kettle using bulging method, the bulging rate of titanium welding pipe is no more than 20%.
Wherein, step(3)When preparing titanium matter cup/kettle using bulging method, the bulging rate of titanium welding pipe is 20 ~ 40%.Preferably,
The bulging rate of titanium welding pipe is 30 ~ 40%.
Wherein, step(1)Middle hot-rolling method is rolled using Steckel mill, and coiled material enters temperature after often rolling a time
Spend in the high temperature furnace for 800 DEG C and wind, next passage is then rolled again;Wherein, hot rolling is to 3 ~ 5mm thickness;Step(1)In
Cold rolling coil belt method is cold rolling using reversable mill, wherein, the rolling process deflection of the coiled strip in cold rolling coil belt method is not low
In 50%;Wherein, rolling process deflection refers to the ratio between rolling Reducing thickness and ingoing ga(u)ge.Wherein, also need to be annealed after hot rolling,
Shot Blasting, pickling, to obtain the recrystallized structure in clean face;Or annealed after hot rolling, blasting treatment, pickling.
Wherein, step(1)4 ~ 9 grades of the grain size of obtained finished titanium strip, specification is the finished product titanium of 500mm × 500mm
The grain size number difference of band is no more than 0.5 grade.
Wherein, the vertical weldering of the titanium tube of bending is welded into titanium welding pipe, during welding, is welded to inner side from the outside of titanium tube,
Single-side welding double-side forming is realized, wherein, the weld seam of welding and the titanium tube base materials of minimum thickness > 90% of titanium tube base material intersection
Thickness, outside weld reinforcement≤0.05mm, inside weld reinforcement≤0.1mm, the hardness of weld metal zone is higher than titanium tube matrix hardness, the two
Difference < 30HV.Part metal height on the weld reinforcement essence toe of weld line of face of weld two.
Wherein, step(2)The anneal processing steps of titanium welding pipe are:Titanium welding pipe is loaded into vaccum sensitive stove, vaccum sensitive stove
Temperature is 550 ~ 700 DEG C, is incubated 0.1 ~ 3min at such a temperature, and under argon atmosphere forced cooling to room temperature, then
Come out of the stove, test.
Wherein, step(3)The method for preparing titanium matter cup/kettle using bulging method is:Using consistent with titanium matter cup/kettle profile
Elastic rubber mould, type is expanded into hydraulic press reclaimed water, and hydraulic pressure is 0 ~ 100MPa.
Because titanium specific strength is high, yield strength is high, elastic big, the shaping of thin-wall titanium welding pipe acquires a certain degree of difficulty, and welds in addition
The control requirement of seam is relatively tight, and the hardness of weld seam is higher than mother metal.
Titanium welding pipe material as water swelling is usually TA1, to the TA1 titaniums of 0.1 ~ 0.5mm in GB GB/T 3622-2012
Band regulation:Tensile strength >=240MPa, 140 ~ 310MPa of yield strength, elongation A50(50mm gauge lengths)By I grade and II grade of difference
It is >=24% and >=40%, demander checks and accepts when having particular/special requirement by II grade.ASME SB338《Condenser and heat exchanger with seamless and
Welding titanium or titanium alloy pipe standards》It is required that, the tensile strength >=240MPa of GR1 titanium tubes, 170 ~ 310MPa of yield strength, elongation
A50>=24%, GR1 are equivalent to domestic TA1.
When titanium cup or titanium kettle are produced, titanium welding pipe expanded joint is shaped using water swelling method more, most product bulging rates are no more than
20%, some products then need bulging 30 ~ 40%, therefore, for different purposes, the different trades mark, heterogeneity, difference need to be selected
The titanium welding pipe product of plasticity and various processes.
Bulging is prior art means, be in the presence of mould, using the pressure of bulging liquid make blank thickness it is thinning and
Surface area increases, to obtain the processing method for stamping of part geometry shape.Water swelling method shaping therein, necking is opening for titanium welding pipe
Pressurize a kind of stamping procedure for reducing at mouthful, and the material of necking part is subject to the pressure of ecto-entad, produces compression to cash, will
Titanium welding pipe is reduced the mouth diameters of titanium welding pipe by the reducing die of prefabricated definite shape;Bulging be by mould make titanium welding pipe to
Outer expansion, the convex curvature needed for expansion.The present invention uses soft mode expanding method, using rubber, polyurethane rubber and PVC plastic
Material etc. makees punch-pin, makes workpiece that required shape is obtained along cavity plate inner chamber bulging by soft mode deformation of media under water pressure
Shape.
Embodiment 1
Using German ALD companies EB stove meltings, from 0 grade of titanium sponge smelting, I grade of TA1 titanium ingot casting, composition is shown in Table 1.
1 I grades of TA1 ingot chemistries of table(wt.%)
After I grade of TA1 ingot mill surface, thickness 190mm, the titanium plate base of width 1200mm are obtained, using hot rolling and cold rolling coil belt side
Titanium plate base is made coiled strip by method, and reversible hot rolling is rolled up by slab rolling using stove, and titanium is involved in into about 800 DEG C after often rolling a time
Annealing furnace inside holding then roll next passage again, coil thickness 3.5mm after hot rolling, Shot Blasting and pickling after annealing are brilliant
Granularity is 7.5 grades, organizes more uniform;Using reversable cold-rolling machine carry out titanium roll up it is cold rolling, through two rolling processes it is cold rolling after, carry out bell furnace true
Sky annealing, pressure-fired argon gas protection, 700 DEG C be incubated 10h, obtain thickness for 0.5mm titanium winding, grain size be 7 grades or so,
Elongation A50It is 33%, performance meets relevant criterion requirement.
Then, it is that width is the winding of 188.5mm by the volume slitting of obtained titanium, through the shaping of roller type cold bending shaping machine, argon arc
Weldering, annealing, pickling, flaw detection and cutting, are made the titanium welding pipe of a diameter of 60mm, and weldquality is good.Wherein, during welding, from titanium
The outside of pipe is welded to inner side, realizes single-side welding double-side forming, the weld seam of welding and the minimum of titanium tube base material intersection
The thickness of the titanium tube base materials of thickness G T.GT.GT 90%, outside weld reinforcement≤0.05mm, inside weld reinforcement≤0.1mm, the hardness of weld metal zone compares titanium
Pipe matrix hardness is high, the difference < 30HV of the two;When titanium welding pipe is annealed, using online sensing vacuum drying oven, it is incubated after 610 DEG C
0.5min, comes out of the stove after argon gas forced cooling to room temperature.
It is the length of 220mm by titanium welding pipe cutting, using the technique of bulging after first necking, mould is done using polyurethane rubber
Tool, the shaping of water swelling method, hydraulic pressure is 50MPa, is prepared into the cylinder of a diameter of 69mm and 71mm, and then Combination Welding is Double-layer titanium
Thermos cup.
Or, can also be that width is the winding of 314mm by the volume slitting of obtained titanium, be molded through roller type cold bending shaping machine,
Argon arc welding, annealing, pickling, flaw detection and cutting, are made the titanium welding pipe of a diameter of 100mm, and weldquality is good.250mm is long for cutting
The titanium welding pipe of degree, using the technique of bulging after first necking, does mould, water swelling method and shapes using polyurethane rubber, and hydraulic pressure is
50MPa, is prepared into the cone of upper and lower side diameter respectively 90mm and 114mm;Another titanium welding pipe bulging is upper and lower side diameter
The cone of respectively 92mm and 117mm, then Combination Welding is Double-layer titanium thermo jug.The bulging of the present embodiment requirement titanium welding pipe
Amount is no more than 20%.
Embodiment 2
Using method similar to Example 1, using German ALD companies EB stove meltings, from being not less than 0ALevel titanium sponge smelting
II grade of TA1 titanium ingot casting, composition is shown in Table 2.
2 II grades of TA1 ingot chemistries of table(wt.%)
After II grade of TA1 ingot mill surface, thickness 190mm, the titanium plate base of width 1200mm are obtained, using hot rolling and cold rolling coil belt side
Titanium plate base is made coiled strip by method, and reversible hot rolling is rolled up by slab rolling using stove, and titanium is involved in into about 800 DEG C after often rolling a time
Annealing furnace inside holding then roll next passage again, coil thickness 4.5mm after hot rolling, Shot Blasting and pickling after annealing are brilliant
Granularity is 7 grades, organizes more uniform;Using reversable cold-rolling machine carry out titanium roll up it is cold rolling, through two rolling processes it is cold rolling after, carry out bell furnace vacuum
Annealing, pressure-fired argon gas protection, 8h is incubated at 600 DEG C, and it is the titanium winding of 0.75mm to obtain thickness, and grain size is 5 grades or so, stretches
Rate A long50It is 53%, performance meets relevant criterion requirement.Wherein, during welding, welded to inner side from the outside of titanium tube, realized
The thickness of single-side welding double-side forming, the weld seam of welding and the titanium tube base materials of minimum thickness > 90% of titanium tube base material intersection, outside weld
Seam reinforcement≤0.05mm, inside weld reinforcement≤0.1mm, the hardness of weld metal zone is higher than titanium tube matrix hardness, the difference < of the two
30HV;When titanium welding pipe is annealed, sensing vacuum furnace temperature is 630 DEG C, insulation 0.5min, and argon gas protection is come out of the stove after being cooled to room temperature.
Then, by obtained titanium volume slitting be width for 320mm winding, through the shaping of roller type cold bending shaping machine, argon arc welding,
Annealing, pickling, flaw detection and cutting, are made the titanium welding pipe of a diameter of 102mm, and weldquality is good.
It is the length of 230mm by titanium welding pipe cutting, using the technique of bulging after first necking, mould is done using polyurethane rubber
Tool, the shaping of water swelling method, hydraulic pressure is 100MPa, is prepared into thickness for 50mm, width are the flat kettle of 160mm.Other can also be made
Abnormity, heavy caliber have the titanium cup or titanium kettle of obvious thinning demand.
Embodiment 3
I grade of TA1 titanium ingot casting is prepared using method similar to Example 1, composition is shown in Table 3.
3 I grades of TA1 ingot chemistries of table(wt.%)
After I grade of TA1 ingot mill surface, the good slab in surface is obtained, reversible hot rolling is rolled up by slab rolling using stove, often rolling is together
Secondary rear titanium involve in into about 800 DEG C annealing furnace inside holding then roll next passage again, the thickness 4mm of coiled material after hot rolling, annealing
Shot Blasting and pickling afterwards, the pickle that pickling is mixed to form using nitric acid and hydrofluoric acid, 7.5 grades of coiled material grain size, tissue compared with
Uniformly;Using reversable cold-rolling machine carry out titanium roll up it is cold rolling, through two rolling processes it is cold rolling after, carry out bell furnace vacuum annealing, pressure-fired argon gas
Protection, 1h is incubated at 650 DEG C, and it is the titanium winding of 0.4mm, 7 grades or so of grain size, elongation A to obtain thickness50It is 35%, performance is full
Sufficient relevant criterion requirement.
It is that width is the winding of 176mm by titanium volume slitting, through shaping, argon arc welding, annealing, flaw detection and cutting, is made diameter
The titanium welding pipe of 60mm, weldquality is good.Wherein, during welding, welded to inner side from the outside of titanium tube, realized single-sided welding
The thickness of double-faced forming, the weld seam of welding and the titanium tube base materials of minimum thickness > 90% of titanium tube base material intersection, outside weld reinforcement≤
0.05mm, inside weld reinforcement≤0.1mm, the hardness of weld metal zone is higher than titanium tube matrix hardness, the difference < 30HV of the two;Welded tube is moved back
When fiery, sensing vacuum furnace temperature is 600 DEG C, insulation 0.3min, and argon gas protection decline is come out of the stove after warming to room temperature.
It is the length of 150mm by titanium welding pipe cutting, using the technique of bulging, mould, water swelling method is done using polyurethane rubber
Shaping, hydraulic pressure is 90MPa, is prepared into the coniform titanium cup of upper and lower side diameter respectively 71mm and 61mm;Another titanium welding pipe system
The standby coniform titanium cup that 70mm and 60mm is respectively into upper and lower side diameter, two titanium cup Combination Weldings are common wide to being made together
Mouth titanium cup.The bulging amount of the present embodiment requirement titanium welding pipe is no more than 40%.
The thermal conductivity of titanium is poor, with reference to exquisite surface treatment, the titanium cup being made has elegant in appearance, non-scald on hand and health care
The features such as property is good, meets middle and high end demand.
Claims (10)
1. a kind of method that utilization thin-walled major diameter titanium welding pipe produces titanium matter cup/kettle, it is characterised in that comprise the following steps:
(1), titanium band production:Titanium plate base is taken, after titanium plate base is made into coiled strip using hot rolling and cold rolling coil belt method, will be rolled up
Band is placed in vacuum cover annealing, and the thickness of obtained finished titanium strip is 0.4 ~ 0.8mm, standby;
(2), titanium welding pipe production:The specification demands of the titanium welding pipe selected according to target size, by step(1)Obtained finished product titanium band
Material slitting cutting, width and the titanium welding pipe aimed dia size of slitting cutting match, using roller type cold bending shaping machine, by slitting
The finished titanium strip for cutting is bent into titanium tube, then using the automatic tungsten anode argon arc welding under argon atmosphere, the titanium that will be bent
The vertical weldering of pipe is welded into titanium welding pipe, and pickling, cutting, standby after annealing;
(3), titanium matter cup/kettle production:The geomery of the titanium matter cup/kettle according to target, by step(3)Obtained titanium welding pipe cutting
It is the length of target size, the rubber mold that selection matches with target titanium matter cup/kettle geomery prepares titanium using bulging method
Matter cup/kettle.
2. the method that a kind of utilization thin-walled major diameter titanium welding pipe according to claim 1 produces titanium matter cup/kettle, its feature exists
In:Step(1)In titanium plate base use I grade of pure titanium of TA1, the control of titanium plate base composition is oxygen content≤0.07%.Nitrogen content≤
0.01%。
3. the method that a kind of utilization thin-walled major diameter titanium welding pipe according to claim 1 produces titanium matter cup/kettle, its feature exists
In:Step(1)In titanium plate base use II grade of pure titanium of TA1, the control of titanium plate base composition is oxygen content≤0.06%.Nitrogen content≤
0.008%。
4. the method that a kind of utilization thin-walled major diameter titanium welding pipe according to claim 2 produces titanium matter cup/kettle, its feature exists
In:Step(3)When preparing titanium matter cup/kettle using bulging method, the bulging rate of titanium welding pipe is no more than 20%.
5. the method that a kind of utilization thin-walled major diameter titanium welding pipe according to claim 3 produces titanium matter cup/kettle, its feature exists
In:Step(3)When preparing titanium matter cup/kettle using bulging method, the bulging rate of titanium welding pipe is 20 ~ 40%.
6. the method that a kind of utilization thin-walled major diameter titanium welding pipe according to claim 1 produces titanium matter cup/kettle, its feature exists
In:Step(1)Middle hot-rolling method is rolled using Steckel mill, and coiled material enters temperature for 800 DEG C after often rolling a time
High temperature furnace in winding, next passage is then rolled again;Step(1)Middle cold rolling coil belt method is cold rolling using reversable mill, its
In, the rolling process deflection of the coiled strip in cold rolling coil belt method is not less than 50%.
7. the method that a kind of utilization thin-walled major diameter titanium welding pipe according to claim 1 produces titanium matter cup/kettle, its feature exists
In:Step(1)4 ~ 9 grades of the grain size of obtained finished titanium strip, specification is the crystal grain of the finished titanium strip of 500mm × 500mm
Degree level difference is no more than 0.5 grade.
8. the method that a kind of utilization thin-walled major diameter titanium welding pipe according to claim 1 produces titanium matter cup/kettle, its feature exists
In:The vertical weldering of the titanium tube of bending is welded into titanium welding pipe, during welding, is welded to inner side from the outside of titanium tube, realize single welding
Double-faced forming is connect, wherein, the thickness of the weld seam of welding and the titanium tube base materials of minimum thickness > 90% of titanium tube base material intersection, outside weld
Seam reinforcement≤0.05mm, inside weld reinforcement≤0.1mm, the hardness of weld metal zone is higher than titanium tube matrix hardness, the difference < of the two
30HV。
9. the method that a kind of utilization thin-walled major diameter titanium welding pipe according to claim 1 produces titanium matter cup/kettle, its feature exists
In:Step(2)The anneal processing steps of titanium welding pipe are:Titanium welding pipe is loaded into vaccum sensitive stove, vacuum induction furnace temperature is 550 ~
700 DEG C, 0.1 ~ 3min is incubated at such a temperature, and forced cooling, to room temperature, is then come out of the stove under argon atmosphere.
10. the method that a kind of utilization thin-walled major diameter titanium welding pipe according to claim 1 produces titanium matter cup/kettle, its feature
It is:Step(3)The method for preparing titanium matter cup/kettle using bulging method is:Use the elastic mould consistent with titanium matter cup/kettle profile
Type is expanded into hydraulic press reclaimed water, hydraulic pressure is 0 ~ 100MPa.
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CN107617683A (en) * | 2017-11-03 | 2018-01-23 | 郜宇航 | A kind of thermos cup shaping dies and its forming technology |
CN109171389A (en) * | 2018-10-30 | 2019-01-11 | 江苏希诺实业有限公司 | A kind of titanium vacuum cup and preparation method thereof |
CN109202199A (en) * | 2018-11-13 | 2019-01-15 | 西安庄信新材料科技有限公司 | A kind of method of titanium welding pipe production titanium vacuum cup |
CN109226434A (en) * | 2018-08-27 | 2019-01-18 | 广东思豪内高压科技有限公司 | A kind of water swelling moulding process of titanium alloy cup |
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CN109202199A (en) * | 2018-11-13 | 2019-01-15 | 西安庄信新材料科技有限公司 | A kind of method of titanium welding pipe production titanium vacuum cup |
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CN109518108B (en) * | 2018-12-24 | 2020-09-29 | 洛阳双瑞精铸钛业有限公司 | TA5 titanium alloy plate and preparation method and application thereof |
CN110973975A (en) * | 2019-12-12 | 2020-04-10 | 浙江哈尔斯真空器皿股份有限公司 | Method for manufacturing body structure of vacuum electric kettle |
CN110973975B (en) * | 2019-12-12 | 2021-07-16 | 浙江哈尔斯真空器皿股份有限公司 | Method for manufacturing body structure of vacuum electric kettle |
CN113458144A (en) * | 2021-07-01 | 2021-10-01 | 西安庄信新材料科技有限公司 | Preparation method of titanium belt for bulging of vacuum cup |
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CN114619208B (en) * | 2022-03-16 | 2022-11-29 | 浙江飞剑工贸有限公司 | Manufacturing method of vacuum cup with inclined head |
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