CN105951016B - A kind of short process making method of naval vessel TA5 titanium alloy medium-thick plates - Google Patents
A kind of short process making method of naval vessel TA5 titanium alloy medium-thick plates Download PDFInfo
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- CN105951016B CN105951016B CN201610381103.6A CN201610381103A CN105951016B CN 105951016 B CN105951016 B CN 105951016B CN 201610381103 A CN201610381103 A CN 201610381103A CN 105951016 B CN105951016 B CN 105951016B
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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
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Abstract
A kind of short process making method of naval vessel TA5 titanium alloy medium-thick plates, using full-flow process design concept, in terms of slab selection, broadening commutation rolling, Design of Heat Treatment Process, edge cracks, plate shape, tissue and the performance of Comprehensive Control TA5 medium-thick plates, the slab that this method production cut deal is used is smaller, it is convenient for production flexible, relatively low is required to capacity of equipment.
Description
Technical field
It is short with TA5 titanium alloy medium-thick plates more particularly, to a kind of naval vessel the present invention relates to a kind of sheet material preparation method
Process preparation method.
Background technology
The titanium or titanium alloy good characteristic such as have intensity high, heat-resisting, corrosion-resistant, therefore in aviation, chemical industry, ocean engineering
It is used widely.TA5 titanium alloys nominal composition is Ti-4Al-0.005B, is a kind of full alpha titanium alloy.TA5 titanium alloys have
There are good welding and corrosion resisting property, can be used as the structural material under corrosive environment of sea water, be successfully used in shipbuilding industry at present.
The TA5 equivalent thickness of aluminium 5.0, is single-phase close-packed hexagonal structure（HCP）, with face-centered cubic（FCC）And body-centered cubic（BCC）
Structure is compared, and its slip system is few, and plasticity is poor, is easily cracked in the operation of rolling.Especially sheet material edge cools fast crackle
It is relatively deep, it is easily caused into the thin chi of sheet material reconditioning.
The approach that current titanium alloy rolling reduces crackle has three：First, increase fire, reduce fire time deformation rate；2nd, slab
Coat inoxidzable coating；3rd, slab cladding plasticity preferably pure titanium layer.And existing method, it is not long flow path, low production efficiency
Under, it is exactly that using effect is not good enough, it is difficult to realize large-scale production.
In addition, TA5 medium-thick plates rolling Strip Shape Control is difficult, it is easy to roll when especially panel length is shorter
Deformed steel strip processed, once and deformed steel strip, it is necessary to using highly energy-consuming, the cycle length orthopedic processing plate shape of pressure, to production efficiency
Adversely affected with the friendship phase.
The content of the invention
The purpose of the present invention is difficult to solve TA5 medium-thick plates rolling Strip Shape Control, and especially panel length is shorter
When be easy to occur rolling deformed steel strip, once and deformed steel strip, it is necessary to use highly energy-consuming, the cycle length orthopedic processing of pressure
Plate shape, there is provided a kind of short stream of naval vessel TA5 titanium alloy medium-thick plates for the problem of being adversely affected to production efficiency and friendship phase
Journey preparation method.
The present invention is solves the deficiency of above-mentioned technical problem, and the technical scheme used is：
A kind of naval vessel short process making method of TA5 titanium alloy medium-thick plates, comprises the following steps：
Step 1: slab is selected：TA5 titanium alloy slabs are taken, the length for defining TA5 titanium alloy slabs is, TA5 titanium alloys
The width of slab is, the thickness of TA5 titanium alloy slabs is, the size of TA5 titanium alloy slabs meets following standard：
（1）
（2）
Wherein formula（1）Middle mm is long measure millimeter, formula（2）InFor the thickness of finished product TA5 titanium alloy plates；
Step 2: examining slab：Tested TA5 titanium alloy slabs are obtained in step one：Define finished product TA5 titanium alloys
The deformed steel strip surplus of sheet material is；
（3）
Formula（3）InThickness, width and the length of the TA5 titanium alloy slabs respectively determined in step one
Size,The respectively thickness of finished product TA5 titanium alloy plates, width and length dimension,For finished product TA5 titanium alloys
The pre- allowance of trimming of sheet material,For effective length factor；
Milling train most I is taken to roll slab length and be defined as, willWithContrast, if, then repeat step
One redefines TA5 titanium alloy slab sizes, until, it is determined that TA5 titanium alloy slabs are stand-by；
Step 3: determining slab broadening direction and milling train depression degree：Define TA5 titanium alloy plates spreading deformation amount be, and, take oneValue, and determine one withThe width of corresponding standard TA5 titanium alloy slabsWith
One withThe thickness of TA5 titanium alloy plates after corresponding broadening, and according to the thickness of the TA5 titanium alloy plates after broadeningDetermine depression degree of the milling train in spreading process；
（4）
（5）
Formula（4）InFor the width of finished product TA5 titanium alloy plates,Reserved for the trimming of finished product TA5 titanium alloy plates
Amount；
Take the length of the TA5 titanium alloy slabs determined in step 2With the width of TA5 titanium alloy slabs, respectively with mark
The width of quasi- TA5 titanium alloy slabsContrasted, if the length of TA5 titanium alloy slabsMeet,
Then the length to TA5 titanium alloy slabs enters line broadening, if the width of TA5 titanium alloy slabsMeet,
Line broadening then is entered to the width of TA5 titanium alloy slabs；
Step 4：Broadening and roll forming：
Step a, definition TA5 titanium alloy sheet actual measurement beta transus temperatures are, TA5 titanium alloy slab broadening temperature is；, take the TA5 titanium alloy slabs determined in step 2 to be heated to, the continuous heating time,, in formulaFor soaking time coefficient, unit is：min/mm；For the thickness of TA5 titanium alloy slabs, unit is
mm；Value is 0.6-1.5min/mm, according to the milling train depression degree and broadening direction determined in step 3 after the completion of heating
Enter line broadening, the road number of times of control broadening rolling is not more than 3 times, and broadening is completed；
Step b, meet step a the TA5 titanium alloy slabs after broadening are rotated into 90 ° of angles and rolled, lasting rolling is up to plate
Base thickness is equal to finished product thickness；Controlled rolling pass deformation rate in rolling temperature control >=750 DEG C in the operation of rolling, the operation of rolling
≤ 30%, two passes deformation rate≤25% of most end, definition rolls total deformation and is,；
Step 5: scale is cut：By the pre- allowance excision of the deformed steel strip obtained in step 4 in sheet material, plate shape and table are chosen
The second best in quality position in face carries out scale segmentation to finished product sheet material；
Step 6: heat treatment：The sheet material after being handled in step 6 is taken to carry out individual annealing, sheet material is first heated to 600~
800 DEG C, then the continuous heating time be,, whereinFor soaking time coefficient, unit is：min/mm；For into
The thickness of product TA5 titanium alloy plates, unit is mm, whereinValue is 2.0-5.0 min/mm；Air cooling is carried out after the completion of heating；
Step 7: surface treatment：The treated TA5 titanium alloy plates of step 6 are taken to be carried out using stripping off the skin, polishing at surface
Reason, removes surface oxide layer and defect, machines.
Effective length factor in described step twoEffective length/rolling total length, effective length=rolling total length-
The rolled plate disabled plication region length of rounded portions end to end,Value is 0.88~0.95.
In described step four rolling temperature is detected in step b<At 750 DEG C, sheet material melt down to be heated to temperature
>=750 DEG C, and the continuous heating time；；WhereinFor soaking time coefficient, unit is：min/mm；For TA5
The real-time thickness of titanium alloy plate, unit is mm, whereinValue is 0.4-1.0 min/mm.
1. enough flexible process designs, slab length and width size are recognized and provided for ease of length and width size in the operation of rolling
Gap must be met
2. it is guarantee end properties and controlled rolling sheet material crackle, finished product deformation rate（）Between 50 ~ 90%,
Slab thickness must be met
3. the spreading deformation amount that the width of the length of slab or slab must be with design（）Match
Work as satisfactionWhen, the length to slab enters line broadening
Work as satisfactionWhen, line broadening is entered to the width of slab
4. easily occur the deformed steel strips such as nose, discount in the medium-thick plate operation of rolling, must reserved enough sheet material plate shapes
Bad surplus（）, sheet material deformed steel strip surplus must meet,Slab length is rolled for milling train most I.Can be in plate
Deformed steel strip surplus is stopped in the side of material, and certain deformed steel strip surplus can also be left in both sides.In addition, by setting up plate
The bad surplus of shape, adds the total length of rolled plate, and the rolling plate shape of TA5 alloy cut deals is also improved to a certain extent.
According to, it is determined that whether selected slab meets the requirements,
Control spreading deformation amount, too small spreading deformation amount then changes to edge cracks and sheet material tissue
Kind limited, excessive spreading deformation amount then easily forms larger round end（Tongue）, commutation rolling centering is difficult after broadening, easily
Roll tiltedly.3. the road number of times of broadening rolling should be not more than 3, and the excessive then plate shape of road number of times and rolling round end are difficult to control to.4. roll
Pass deformation rate≤30%, two passes deformation rate≤25% of most end, excessive pass deformation rate is then easily caused compared with drastic crack
Line is generated, and causes sheet material to scrap.5. total deformation is rolled。
7. controlled rolling is rolled using fast pace, can be completed rolling in the case where sheet material temperature meets requirement and be avoided melting down, control
Finishing temperature >=750 DEG C processed.
Previous step is connect, the pre- allowance of deformed steel strip is cut, plate shape and the good position of surface quality is chosen to production board
Material carries out scale.
The beneficial effects of the invention are as follows：The present invention uses full-flow process design concept, is selected, opened up by rational slab
Width commutation rolling design and subsequent Design of Heat Treatment Process etc., the TA5 medium-thick plates of production, the table of sheet material after hot-roll annealing
Facial cleft line is less shallower, grinding depth≤1.0mm.In terms of room-temperature mechanical property, 700~850MPa of tensile strength, yield strength
600~820MPa, elongation 12~24%, unevenness≤7mm/m meets GB/T 3621-2007 standards and the requirement of client.Its
Comprehensive mechanical property is excellent, and various aspects of performance index equilibrium, surplus is larger.The present invention solves the production of TA5 cut deals short route
Technical barrier, and stable mass production can be realized, meet the use demand of warship marine board.
The present invention has following innovative point and advantage：1. process route is novel, first using full-flow process design concept,
Selected from slab（Design）, broadening commutation rolling design, in terms of Design of Heat Treatment Process, Comprehensive Control TA5 medium-thick plates
Edge cracks, plate shape, tissue and performance；2. slab is selected（Design）So that broadening commutation has larger technological flexibility, plate
On the one hand the produce reality demand of broadening commutation can be met in terms of base size, the change of end properties and tissue is on the other hand also met
Shape amount requirement, while having reserved certain deformed steel strip length surplus so that the safety factor enhancing of finished product plate shape, is easy to use
Fast easily individual annealing mode of production is heat-treated, it is to avoid high energy consumption, the orthopedic work for handling plate shape of the pressure of cycle length
Sequence；3. broadening commutation rolling design, had both been avoided that sheet material edge crackle was too deep, and can also improve tissue and performance, can also expire in addition
The practical capacity of sufficient produced on-site, will not produce abnormal caused by broadening round end is excessive；4. Design of Heat Treatment Process, using individual
Annealing way, it is to avoid highly energy-consuming, the orthopedic processing plate shape process of pressure of cycle length, efficiency high, energy consumption are low, hand over the phase short；5. produce
Flow is short, and equipment and technique are simple, and stable mass production can be achieved；6. the slab that this method production cut deal is used is smaller,
It is convenient for production flexible, relatively low is required to capacity of equipment.
Brief description of the drawings
Fig. 1 is to the schematic flow sheet of W directions broadening in processing scheme of the present invention.
Fig. 2 is to the schematic flow sheet of L directions broadening in processing scheme of the present invention.
Embodiment
Shown in figure, embodiment is as follows：
A kind of naval vessel short process making method of TA5 titanium alloy medium-thick plates, comprises the following steps：
Step 1: slab is selected：TA5 titanium alloy slabs are taken, the length for defining TA5 titanium alloy slabs is, TA5 titanium alloys
The width of slab is, the thickness of TA5 titanium alloy slabs is, the size of TA5 titanium alloy slabs meets following standard：
（1）
（2）
Wherein formula（1）Middle mm is long measure millimeter, formula（2）InFor the thickness of finished product TA5 titanium alloy plates；
Step 2: examining slab：Tested TA5 titanium alloy slabs are obtained in step one：Define finished product TA5 titanium alloys
The deformed steel strip surplus of sheet material is；
（3）
Formula（3）InThickness, width and the length of the TA5 titanium alloy slabs respectively determined in step one
Size,The respectively thickness of finished product TA5 titanium alloy plates, width and length dimension,For finished product TA5 titanium alloys
The pre- allowance of trimming of sheet material,For effective length factor；
Milling train most I is taken to roll slab length and be defined as, willWithContrast, if, then repeat step
One redefines TA5 titanium alloy slab sizes, until, it is determined that TA5 titanium alloy slabs are stand-by；
Step 3: determining slab broadening direction and milling train depression degree：Define TA5 titanium alloy plates spreading deformation amount be, and, take oneValue, and determine one withThe width of corresponding standard TA5 titanium alloy slabsWith
One withThe thickness of TA5 titanium alloy plates after corresponding broadening, and according to the thickness of the TA5 titanium alloy plates after broadeningDetermine depression degree of the milling train in spreading process；
（4）
（5）
Formula（4）InFor the width of finished product TA5 titanium alloy plates,Reserved for the trimming of finished product TA5 titanium alloy plates
Amount；
Take the length of the TA5 titanium alloy slabs determined in step 2With the width of TA5 titanium alloy slabs, respectively with mark
The width of quasi- TA5 titanium alloy slabsContrasted, if the length of TA5 titanium alloy slabsMeet,
Then the length to TA5 titanium alloy slabs enters line broadening, if the width of TA5 titanium alloy slabsMeet,
Line broadening then is entered to the width of TA5 titanium alloy slabs；
Step 4：Broadening and roll forming：
Step a, definition TA5 titanium alloy sheet actual measurement beta transus temperatures are, TA5 titanium alloy slab broadening temperature is；, take the TA5 titanium alloy slabs determined in step 2 to be heated to, the continuous heating time,, in formulaFor soaking time coefficient, unit is：min/mm；For the thickness of TA5 titanium alloy slabs, unit is
mm；Value is 0.6-1.5 min/mm, according to the milling train depression degree determined in step 3 and broadening side after the completion of heating
To line broadening is entered, the road number of times of control broadening rolling is not more than 3 times, and broadening is completed；
Step b, meet step a the TA5 titanium alloy slabs after broadening are rotated into 90 ° of angles and rolled, lasting rolling is up to plate
Base thickness is equal to finished product thickness；Controlled rolling pass deformation rate in rolling temperature control >=750 DEG C in the operation of rolling, the operation of rolling
≤ 30%, two passes deformation rate≤25% of most end, definition rolls total deformation and is,；
Step 5: scale is cut：By the pre- allowance excision of the deformed steel strip obtained in step 4 in sheet material, plate shape and table are chosen
The second best in quality position in face carries out scale segmentation to finished product sheet material；
Step 6: heat treatment：The sheet material after being handled in step 6 is taken to carry out individual annealing, sheet material is first heated to 600~
800 DEG C, then the continuous heating time be,, whereinFor soaking time coefficient, unit is：min/mm；For into
The thickness of product TA5 titanium alloy plates, unit is mm, whereinValue is 2.0-5.0 min/mm；Air cooling is carried out after the completion of heating；
Step 7: surface treatment：The treated TA5 titanium alloy plates of step 6 are taken to be carried out using stripping off the skin, polishing at surface
Reason, removes surface oxide layer and defect, machines.
Effective length factor in described step twoEffective length/rolling total length, effective length=rolling total length-
The rolled plate disabled plication region length of rounded portions end to end,Value is 0.88~0.95.
In described step four rolling temperature is detected in step b<At 750 DEG C, sheet material melt down to be heated to temperature
>=750 DEG C, and the continuous heating time；；WhereinFor soaking time coefficient, unit is：min/mm；For TA5
The real-time thickness of titanium alloy plate, unit is mm, whereinValue is 0.4-1.0 min/mm.
1. enough flexible process designs, slab length and width size are recognized and provided for ease of length and width size in the operation of rolling
Gap must be met
2. it is guarantee end properties and controlled rolling sheet material crackle, finished product deformation rate（）Between 50 ~ 90%,
Slab thickness must be met
3. the spreading deformation amount that the width of the length of slab or slab must be with design（）Match
Work as satisfactionWhen, the length to slab enters line broadening
Work as satisfactionWhen, line broadening is entered to the width of slab
4. easily occur the deformed steel strips such as nose, discount in the medium-thick plate operation of rolling, must reserved enough sheet material plate shapes
Bad surplus（）, sheet material deformed steel strip surplus must meet,Slab length is rolled for milling train most I.Can be in plate
Deformed steel strip surplus is stopped in the side of material, and certain deformed steel strip surplus can also be left in both sides.In addition, by setting up plate
The bad surplus of shape, adds the total length of rolled plate, and the rolling plate shape of TA5 alloy cut deals is also improved to a certain extent.
According to, it is determined that whether selected slab meets the requirements,
Control spreading deformation amount, too small spreading deformation amount then changes to edge cracks and sheet material tissue
Kind limited, excessive spreading deformation amount then easily forms larger round end（Tongue）, commutation rolling centering is difficult after broadening, easily
Roll tiltedly.3. the road number of times of broadening rolling should be not more than 3, and the excessive then plate shape of road number of times and rolling round end are difficult to control to.4. roll
Pass deformation rate≤30%, two passes deformation rate≤25% of most end, excessive pass deformation rate is then easily caused crackle life
Into causing sheet material to scrap.5. total deformation is rolled。
7. controlled rolling is rolled using fast pace, can be completed rolling in the case where sheet material temperature meets requirement and be avoided melting down, control
Finishing temperature >=750 DEG C processed.
Previous step is connect, the pre- allowance of deformed steel strip is cut, plate shape and the good position of surface quality is chosen to production board
Material carries out scale.
The beneficial effects of the invention are as follows：The present invention uses full-flow process design concept, is selected, opened up by rational slab
Width commutation rolling design and subsequent Design of Heat Treatment Process etc., the TA5 medium-thick plates of production, the table of sheet material after hot-roll annealing
Facial cleft line is less shallower, grinding depth≤1.0mm.In terms of room-temperature mechanical property, 700~850MPa of tensile strength, yield strength
600~820MPa, elongation 12~24%, unevenness≤7mm/m meets GB/T 3621-2007 standards and the requirement of client.Its
Comprehensive mechanical property is excellent, and various aspects of performance index equilibrium, surplus is larger.The present invention solves the production of TA5 cut deals short route
Technical barrier, and stable mass production can be realized, meet the use demand of warship marine board.
Example 1：
First, verify and select slab：According to trimmed size（20*1000*3000/1）With the requirement of spreading deformation amount, select
Spreading deformation amount is 15%, according to the formula of slab selection requirements, from slab 130*900*1030 specification slabs, and to slab
Width（900）Enter line broadening.
Connect previous step, broadening commutation rolling：DEG C, rolling temperatureIt is set as 1020 DEG C.The broadening passage
Divide 2 completions, pass deformation rate is respectively 7.0%, 8.0%.Then 90 ° of progress commutation rollings of base, rolling point 8 after the commutation are turned
Individual passage, pass deformation rate is respectively 17.1%, 18.4%, 17.3%, 19.3%, 20.0%, 20.0%, 20.3%, 19.6%.
The total deformation rate of broadening commutation rolling is 85%, 910 DEG C of finishing temperature.
Connect previous step, scale cutting：The design pre- allowance of deformed steel strip (2000mm) is cut, plate shape and surface is chosen
The second best in quality position carries out product sizing.
Connect previous step, heat treatment：Sheet material after scale is placed in roller hearth type heating furnace, under conditions of temperature is 650 DEG C
It is incubated after 65min, air cooling of coming out of the stove.
Connect previous step, surface treatment：It is surface-treated using stripping off the skin, polishing, removes surface oxide layer and defect.Obtain
Thickness is 20mm, and width is 1000mm, and length is 3000mm TA5 titanium alloy plates.Mechanical property, face crack depth and plate
Shape situation is as shown in table 1.
Example 2：
First, verify and select slab：According to trimmed size（22*1000*3000/1）With the requirement of spreading deformation amount, select
Spreading deformation amount is 10%, according to the formula of slab selection requirements, from slab 130*800*960 specification slabs, and to slab
Length（960）Enter line broadening.
Connect previous step, broadening commutation rolling：DEG C, rolling temperatureIt is set as 980 DEG C.The broadening passage point
2 completions, pass deformation rate is respectively 4.0%, 6.0%.Then 90 ° of progress commutation rollings of base, rolling point 8 after the commutation are turned
Passage, pass deformation rate is respectively 17.1%, 20.4%, 20.3%, 20.3%, 19.0%, 19.0%, 18.3%, 17.6%.
The total deformation rate of broadening commutation rolling is 83%, 780 DEG C of finishing temperature.
Connect previous step, scale cutting：The design pre- allowance of deformed steel strip (750mm) is cut, plate shape and surface is chosen
The second best in quality position carries out product sizing.
Connect previous step, heat treatment：Sheet material after scale is placed in roller hearth type heating furnace, under conditions of temperature is 680 DEG C
It is incubated after 75min, air cooling of coming out of the stove.
Connect previous step, surface treatment：It is surface-treated using stripping off the skin, polishing, removes surface oxide layer and defect.Obtain
Thickness is 22mm, and width is 1000mm, and length is 3000mm TA5 titanium alloy plates.Plate shape is rolled as shown in Fig. 2 mechanical property
Energy, face crack depth and plate shape situation are as shown in table 1.
The product situation that table 1 is processed using the present invention
From table 1, naval vessel prepared by the processing of the embodiment of the present invention 1,2 TA5 titanium alloy sheets mechanical performance index equilibrium,
Surplus is big, and plate shape is good, and surface quality is good, meets the requirement of GB/T 3621-2007 and client.And this method technique
Simply, production procedure is short, efficiency high.
Claims (2)
1. a kind of naval vessel short process making method of TA5 titanium alloy medium-thick plates, it is characterised in that：Comprise the following steps：
Step 1: slab is selected：TA5 titanium alloy slabs are taken, the length for defining TA5 titanium alloy slabs is, TA5 titanium alloy slabs
Width be, the thickness of TA5 titanium alloy slabs is, the size of TA5 titanium alloy slabs meets following standard：
（1）
（2）
Wherein formula（2）InFor the thickness of finished product TA5 titanium alloy plates；
Step 2: examining slab：Tested TA5 titanium alloy slabs are obtained in step one：Define finished product TA5 titanium alloy plates
Deformed steel strip surplus be；
（3）
Formula（3）InThickness, width and the length ruler of the TA5 titanium alloy slabs respectively determined in step one
It is very little,The respectively thickness of finished product TA5 titanium alloy plates, width and length dimension,For finished product TA5 titanium alloys
The pre- allowance of trimming of sheet material,For effective length factor, effective length factorEffective length/rolling total length, effective length
=total length-rolled plate disabled plication region length of rounded portions end to end is rolled,Value is 0.88~0.95；
Milling train most I is taken to roll slab length and be defined as, willWithContrast, if, then the weight of repeat step one
It is new to determine TA5 titanium alloy slab sizes, until, it is determined that TA5 titanium alloy slabs are stand-by；
Step 3: determining slab broadening direction and milling train depression degree：Define TA5 titanium alloy plates spreading deformation amount be,
And, take oneValue, and determine one withThe width of corresponding standard TA5 titanium alloy slabsWith one
WithThe thickness of TA5 titanium alloy plates after corresponding broadening, and according to the thickness of the TA5 titanium alloy plates after broadeningReally
Determine depression degree of the milling train in spreading process；
（4）
（5）
Formula（4）InFor the width of finished product TA5 titanium alloy plates,For the pre- allowance of trimming of finished product TA5 titanium alloy plates；
Take the length of the TA5 titanium alloy slabs determined in step 2With the width of TA5 titanium alloy slabs, respectively with standard
The width of TA5 titanium alloy slabsContrasted, if the length of TA5 titanium alloy slabsMeet,
Then the length to TA5 titanium alloy slabs enters line broadening, if the width of TA5 titanium alloy slabsMeet,
Line broadening then is entered to the width of TA5 titanium alloy slabs；
Step 4：Broadening and roll forming：
Step a, definition TA5 titanium alloy sheet actual measurement beta transus temperatures are, TA5 titanium alloy slab broadening temperature is；, take the TA5 titanium alloy slabs determined in step 2 to be heated to, the continuous heating time,, in formulaFor soaking time coefficient, unit is：min/mm；For the thickness of TA5 titanium alloy slabs, unit is
mm；Value is 0.6-1.5 min/mm, according to the milling train depression degree determined in step 3 and broadening side after the completion of heating
To line broadening is entered, the road number of times of control broadening rolling is not more than 3 times, and broadening is completed；
Step b, meet step a the TA5 titanium alloy slabs after broadening are rotated into 90 ° of angles and rolled, lasting rolling is until slab thickness
Degree is equal to finished product thickness；Controlled rolling pass deformation rate in rolling temperature control >=750 DEG C in the operation of rolling, the operation of rolling≤
30%, two passes deformation rate≤25% of most end, definition rolls total deformation and is,；
Step 5: scale is cut：By the pre- allowance excision of the deformed steel strip obtained in step 4 in sheet material, plate shape and surface matter are chosen
The good position of amount carries out scale segmentation to finished product sheet material；
Step 6: heat treatment：Take the sheet material after being handled in step 5 to carry out individual annealing, sheet material is first heated to 600~800
DEG C, then the continuous heating time be,, whereinFor soaking time coefficient, unit is：min/mm；For finished product
The thickness of TA5 titanium alloy plates, unit is mm, whereinValue is 2.0-5.0 min/mm；Air cooling is carried out after the completion of heating；
Step 7: surface treatment：Take the treated TA5 titanium alloy plates of step 6 to be surface-treated using stripping off the skin, polishing, go
Except surface oxide layer and defect, machine.
2. a kind of short process making method of naval vessel TA5 titanium alloy medium-thick plates according to claim 1, its feature exists
In：In described step four rolling temperature is detected in step b<At 750 DEG C, sheet material melt down to be heated to temperature >=750
DEG C, and the continuous heating time；；WhereinFor soaking time coefficient, unit is：min/mm；Closed for TA5 titaniums
The real-time thickness of golden plate material, unit is mm, whereinValue is 0.4-1.0 min/mm.
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| CN112795798B (en) * | 2019-11-13 | 2022-02-08 | 新疆大学 | Preparation method of titanium alloy plate |
| CN111589859B (en) * | 2020-04-21 | 2021-12-17 | 洛阳双瑞精铸钛业有限公司 | Rolling production method of pure titanium plate |
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|---|---|---|---|---|
| CN102560305A (en) * | 2011-12-22 | 2012-07-11 | 洛阳双瑞精铸钛业有限公司 | High-efficiency short-process heat treatment technology for marine titanium alloy |
| CN104651767A (en) * | 2015-01-27 | 2015-05-27 | 洛阳双瑞精铸钛业有限公司 | Processing method of medical TC4ELI titanium alloy moderately-thick plate |
| CN105274365A (en) * | 2014-07-16 | 2016-01-27 | 匡永刚 | Titanium alloy preparation technology |
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| JPS56163001A (en) * | 1980-05-21 | 1981-12-15 | Sumitomo Metal Ind Ltd | Manufacture of titanium slab |
| JPH0860317A (en) * | 1994-08-18 | 1996-03-05 | Sumitomo Metal Ind Ltd | Production of titanium material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102560305A (en) * | 2011-12-22 | 2012-07-11 | 洛阳双瑞精铸钛业有限公司 | High-efficiency short-process heat treatment technology for marine titanium alloy |
| CN105274365A (en) * | 2014-07-16 | 2016-01-27 | 匡永刚 | Titanium alloy preparation technology |
| CN104651767A (en) * | 2015-01-27 | 2015-05-27 | 洛阳双瑞精铸钛业有限公司 | Processing method of medical TC4ELI titanium alloy moderately-thick plate |
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