CN108165822A - A kind of preparation method of low-intensity, easily molded welded tube TA2 cold rolled titanium bands - Google Patents
A kind of preparation method of low-intensity, easily molded welded tube TA2 cold rolled titanium bands Download PDFInfo
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- CN108165822A CN108165822A CN201810138353.6A CN201810138353A CN108165822A CN 108165822 A CN108165822 A CN 108165822A CN 201810138353 A CN201810138353 A CN 201810138353A CN 108165822 A CN108165822 A CN 108165822A
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- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 108
- 239000010936 titanium Substances 0.000 title claims abstract description 104
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 104
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 238000000137 annealing Methods 0.000 claims abstract description 31
- 238000005097 cold rolling Methods 0.000 claims abstract description 21
- 238000005238 degreasing Methods 0.000 claims abstract description 17
- 239000012535 impurity Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000005554 pickling Methods 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 238000005070 sampling Methods 0.000 claims abstract description 5
- 238000005096 rolling process Methods 0.000 claims description 14
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical group F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 11
- 238000007788 roughening Methods 0.000 claims description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 8
- 239000000047 product Substances 0.000 claims description 8
- 239000011265 semifinished product Substances 0.000 claims description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 5
- 229910017604 nitric acid Inorganic materials 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 4
- 238000005242 forging Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 4
- 238000005098 hot rolling Methods 0.000 claims description 4
- 239000004615 ingredient Substances 0.000 claims description 4
- 238000003723 Smelting Methods 0.000 claims description 2
- 239000013527 degreasing agent Substances 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims 1
- 238000005498 polishing Methods 0.000 abstract description 10
- 230000007547 defect Effects 0.000 abstract description 9
- 238000003466 welding Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 5
- 238000002156 mixing Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 24
- 238000000465 moulding Methods 0.000 description 9
- 230000003746 surface roughness Effects 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- 238000012545 processing Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004093 laser heating Methods 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
-
- 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
- C22F1/02—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Metal Rolling (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
A kind of low-intensity, the easily molded welded tube preparation method of TA2 cold rolled titanium bands, include the following steps：Welded tube TA2 cold rolled titaniums band finished product is obtained after raw material preparation, cold rolling, degreasing, continuous annealing, pickling, smooth, degreasing sampling.The present invention passes through [O]WhenIt characterizes raw material and strengthens impurity element whole content, and give optimum range, it is controlled in blending process, in combination with follow-up cold rolling, annealing and flattening process measure, realize that control welded tube is in 260 ~ 350MPa reduced levels with TA2 cold rolled titaniums band transverse yield strength, effectively reduce welded tube forming drag, and then reduce frictional force between titanium band and welded tube forming roller mould, and pass through and improve titanium belt surface hardness and roughness, titanium band is reduced with being molded the adhesiveness of roller mould, so as to greatly improve welded tube forming roll service life, and solve titanium welding pipe surface forming polishing scratch defect quality problems.
Description
Technical field
The present invention relates to a kind of titanium processing technology, more particularly, to a kind of low-intensity, easily molded welded tube TA2 cold rolled titaniums
The preparation method of band.
Background technology
Titanium has many advantages, such as that specific strength is high, corrosion-resistant.Compared with seamless pure titanium tube, it is thin that welded tube can produce 0.3 ~ 1.0mm
Wall tube material, production efficiency and lumber recovery are high, at low cost, and production length is unrestricted, can mass steady production, and heat exchange efficiency
Height saves the investment of equipment titanium, extensive in the civilian sector application such as electric power, sea water desalination, chemical industry.TA2 cold rolled titanium bands are to use
TA2 slabs are prepared after the processing of the processes such as hot rolled, cold rolling, annealing, finishing, and usually institute is according to GB/T using TA2 slabs
3620.1《The titanium or titanium alloy trade mark and chemical composition》Elemental range carries out dispensing and prepared by melting, that is, strengthens impurity element weight
Percentage control range is Fe≤0.30%, C≤0.08%, N≤0.03%, O≤0.25%, and as impurity content improves,
Cold rolled titanium band strength improves, the TA2 cold rolled titaniums band transverse yield strength ranging from 260 ~ 450MPa being typically prepared.
TA2 welded tubes be using TA2 cold rolled titanium bands, by multigroup molding roller mould, gradually weld after transverse cold bending deformation and
Into.But since titanium band resilience is big, molding drag is big, especially when titanium band transverse yield strength is in 350 ~ 450MPa higher range values
When, molding is particularly difficult, and frictional force is big between titanium band and molding roller mould, and pure titanium adhesiveness is strong, often will appear surface polishing scratch
Defect causes surface of welded pipe quality bad or even scraps, larger molding drag, frictional force and titanium band adherency mold so that molding
Service life is relatively low after each reconditioning of roller mould, and frequent roll change is needed to repair roller, and leads to the reduction of welded tube producing line speed of production, Welded Pipe
Quality and production efficiency produce bigger effect, and become titanium welding pipe manufacturing enterprise and face main bottleneck, need to be improved.
104032247 B of patent CN disclose a kind of production method of condenser welded tube precision cold-rolled titanium band, comprising adopting
With Cold-rolled Pure titanium coiled material, rolled through semi-finished product, cleaning by degreasing, vacuum annealing process and even up aligning and etc. and be made, obtain
Surface roughness is 0.15 ~ 0.30 μm of cold rolled titanium band；102310314 B of patent CN disclose a kind of titanium or titanium alloy band volume and add
Work method, including using step as " raw material-heating-rolling-annealing-Shot Blasting-reconditioning-pickling-cold rolling-degreasing-vacuum is moved back
Fire-straightening or smooth-trimming-product " method prepares cold rolling titanium strip coil.Above-mentioned two patents are although provide TA2 cold rolled titanium bands
It prepares basic technology, but there are still titanium band transverse yield strength is high, surface roughness is small, the big problem of welded tube forming drag, causes
The titanium welding pipe surface of production is also easy to produce polishing scratch defect, and forming roller die life is short, and welded pipe product line speed of production is low, because
It is undesirable that this is used to prepare TA2 welded pipe industryizatioies batch production using effect.
Invention content
The purpose of the present invention is to solve because titanium band transverse yield strength is high, surface roughness is small, welded tube forming drag
Greatly, the titanium welding pipe surface of production is caused to be also easy to produce polishing scratch defect, and forming roller die life is short, welded pipe product line production speed
The problem of low is spent, a kind of low-intensity, the preparation method of easily molded welded tube TA2 cold rolled titanium bands are provided, by blank impurity member
Cellulose content is controlled, and titanium band preparation process is optimized, and realizes titanium band low yield strength, high surface hardness and coarse
Degree control effectively reduces titanium band welded tube forming drag, substantially extends welded tube forming roll die life, solve titanium weldering
Pipe surface is molded polishing scratch defect quality problems, and improves welded tube producing line speed of production.Using patented method of the present invention, can obtain
The TA2 cold rolled titanium bands of welded tube forming are particularly suitable for, titanium welding pipe is produced using it, have the advantages that production efficiency is high, presentation quality is good.
The deficiency of the present invention to solve above-mentioned technical problem, used technical solution are：
A kind of low-intensity, the easily molded welded tube preparation method of TA2 cold rolled titanium bands, include the following steps：
Step 1: raw material prepare：Take major ingredient titanium sponge and dispensing titanium dioxide and be pressed into electrode, define dispensing Fe, C,
N, O impurity contents mass percent is respectively [Fe] %, [C] %, [N] %, [O] %, is defined [O]WhenFor characterizing dispensing impurity
Element whole content, then dispensing impurity element components meet the following conditions：
[O]When=[O] %+0.5* [Fe] %+0.7* [C] %+2.5* [N] %=0.10 ~ 0.20%,
Then by the electrode suppressed is smelting successively, forging, hot rolling, cold rolling, annealing operation, acquisition thickness is 0.6 ~ 2.5mm
Annealed state TA2 cold rolled titaniums band blank；
Step 2, cold rolling：The titanium band blank being prepared in step 1 is taken, TA2 titaniums band blank is carried out using cold mill complex cold
It rolls, control cold rolling reduction is 40 ~ 80%, and TA2 titaniums band blank is cold-rolled to 0.3 ~ 1.0mm, obtains semi-finished product titanium band, spare；
Step 3, degreasing：The semi-finished product titanium band in step 2 is taken to carry out continuous wash and drying to it using degreasing unit, is prepared
Surface is obtained without greasy dirt, drying, clean cold rolling titanium strip coil, it is spare；
Step 4, continuous annealing：Flat place is carried out out to the cold rolled titanium band volume in step 3 using the continuous annealing line of argon gas protection
Reason, it is split it is flat treated that cold rolled titanium band volume carries out line annealing, titanium band can be carried out by the way of continuous annealing
Kaiping processing is changed in traditional titanium volume bell-type annealing and is directly heated and cold to whole in order to realizing the direct laser heating of individual layer
But the problem of efficiency is low, 600 ~ 750 degrees Celsius of annealing temperature, 1 ~ 5min of annealing soaking time；
Step 5, pickling：Using mix acid liquor to titanium band carries out pickling, and dries after continuous annealing treatment in step 4；
Step 6, it is smooth：Skin pass rolling carries out step 5 treated titanium band using planisher, control temper mill roller is advance
Laser roughening processing is carried out, roughness is 0.5 ~ 4 μm after roller texturing, and skin pass rolling drafts is 0.5 ~ 2%, temper mill roller
After frosting treatment, smooth processing is carried out to titanium band, transfers to form frosted face to improve roughness in titanium belt surface, general titanium is with table
Surface roughness is the 20 ~ 50% of texturing roller roughness.Smooth processing is also used for improving titanium strip coil case hardness；
Step 7, degreasing sampling：It takes step 6 treated the degreasing method that titanium band is repeated in step 3 to carry out ungrease treatment, obtain
Obtain welded tube TA2 cold rolled titaniums band finished product.
The mix acid liquor is hydrofluoric acid, the mixture of nitric acid, water, and wherein hydrofluoric acid mass concentration is 1.5 ~ 3%, nitre
Sour mass concentration is 12 ~ 20%, remaining as water.
The step three semi-finished product titanium band degreasing speed is 5 ~ 10m/ minutes, 40 ~ 65 degrees Celsius of degreaser temperature, drying
40 ~ 60 degrees Celsius of box temperature degree.
The beneficial effects of the invention are as follows：
1st, this patent passes through [O]WhenIt characterizes raw material and strengthens impurity element whole content, and give optimum range, in dispensing mistake
It is controlled in journey, in combination with follow-up cold rolling, annealing and flattening process measure, realizes control welded tube TA2 cold rolled titaniums band horizontal stroke
Be in 260 ~ 350MPa reduced levels to yield strength, effectively reduce welded tube forming drag, so reduce titanium band and welded tube into
Frictional force between type roller mould, so as to greatly improve welded tube forming roll service life.
2nd, by using laser roughening roller light reduction skin pass rolling, case hardness and roughness are promoted simultaneously, table
Surface hardness reaches more than 160HV0.5, and roughness reaches 0.3 ~ 1.0 μm, significantly reduces titanium band and molding roller mould adhesiveness,
Efficiently solve titanium welding pipe surface forming polishing scratch defect quality problems.
3rd, welded tube is produced using TA2 cold rolled titaniums band prepared by the art of this patent, it is more easily molded, it is less prone to surface polishing scratch and lacks
It falls into, the main behaviour's debugging technical ability of butt welding pipeline and mould design and manufacture Capability Requirement reduce, and have good production adaptability, reduce
Welded tube production difficulty, stay in grade are reliable.
4th, welded tube is produced using welded tube titanium band prepared by the art of this patent, producing line speed of production is high, forming roller die life
Long, stay in grade, rejection rate is low, therefore has the advantages that presentation quality is good, production efficiency is high, production cost is low.
Specific embodiment
Specific embodiment is as follows：
Embodiment 1：Use titanium sponge and TiO2Dispensing is carried out, O, Fe, C, N impurity content mass percent are distinguished after dispensing
It is 0.125%, 0.018%, 0.017%, 0.01%, [O]When=[O]%+0.5*[Fe]%+ 0.7*[C]%+2.5*[N]%=0.125%+
0.5*0.018%+0.7* 0.017%+2.5*0.01%=0.1709%, and by works such as melting, forging, hot rolling, cold rolling, annealing
Sequence obtains thickness as the pure titanium cold rolled titanium band blanks of 1.0mm annealed states TA2；Cold rolling is carried out to titanium band blank using cold mill complex, it is cold
It is rolled to 0.404mm target thicknesses, cold rolling reduction 59.6%；Cold rolled titanium band is cleaned using degreasing unit, is dried；Using
Argon gas protection continuous annealing line carries out out cold rolled titanium band flat annealing, 720 degrees Celsius of annealing temperature, soaking time 4min；Using
" hydrofluoric acid+nitric acid+water " mix acid liquor carries out pickling to cold rolled titanium band after continuous annealing, and dries；Then use roughness for
2.0 μm of laser roughening rollers carry out titanium band skin pass rolling, smooth drafts 0.8%, smooth rear degreasing sampling, the TA2 cold rollings of acquisition
Titanium strip coil performance and surface roughness are shown in Table 1.
Comparative example 1：Be respectively 0.13% using O, Fe, C, N impurity content mass percent, 0.08%, 0.017%,
0.015%, [O]When=0.2194% dispensing raw material carry out 0.4mm cold rolled titaniums band and prepare, and laser roughening is not carried out after finished products
Roller skin pass rolling, the titanium strip coil performance and surface roughness of acquisition are shown in Table 1.
By table 1 as it can be seen that embodiment 1 obtains the 0.4mm thickness specifications TA2 suitable for welded tube forming using the art of this patent
Cold rolled titanium band, the control of titanium band strength, hereinafter, simultaneously by laser roughening roller skin pass rolling, significantly improve titanium band table in 350MPa
Surface hardness and roughness.Comparative example 1 prepares titanium band, and do not carry out hair using ingredient beyond this patent composition range titanium band blank
Change rolls out whole rolling process, and obtained titanium band transverse yield strength is high, case hardness is low, surface roughness is small.With 1 phase of comparative example
Than, laterally surrender is low, case hardness is high, roughness is big for the titanium band that embodiment 1 obtains, and effectively reduces welded tube forming drag, and
Improve surface abrasion resistance, do not occur be molded polishing scratch defect, and after each reconditioning of welded tube forming roller mould service life by 350,000
Meter Ti Gao is to 80 myriametres, while welded tube is more easily molded, and producing line production efficiency improves more than 20%, and advantage is notable.
1 embodiment 1 of table and 1 cold rolled titanium of comparative example band welded tube produce and use Contrast on effect table
Embodiment 2：Use titanium sponge and TiO2Dispensing is carried out, O, Fe, C, N impurity content mass percent are distinguished after dispensing
It is 0.085%, 0.031%, 0.012%, 0.006%, [O]When=[O]%+0.5*[Fe]% +0.7*[C]%+2.5*[N]%=0.085%+
0.5*0.031%+0.7*0.012%+2.5*0.006%=0.1239%, and by works such as melting, forging, hot rolling, cold rolling, annealing
Sequence obtains thickness as the pure titanium cold rolled titanium band blanks of 2.0mm annealed states TA2；Cold rolling is carried out to titanium band blank using cold mill complex, it is cold
It is rolled to 0.709 mm target thicknesses, cold rolling reduction 64.6%；Cold rolled titanium band is cleaned using degreasing unit, is dried；Using
Argon gas protection continuous annealing line carries out out cold rolled titanium band flat annealing, 680 degrees Celsius of annealing temperature, soaking time 3min；Using
" hydrofluoric acid+nitric acid+water " mix acid liquor carries out pickling to cold rolled titanium band after continuous annealing, and dries；Then use roughness for
2.5 μm of laser roughening rollers carry out titanium band skin pass rolling, smooth drafts 1.2%, smooth rear degreasing sampling, the TA2 cold rollings of acquisition
Titanium strip coil performance and surface roughness are shown in Table 2.
Comparative example 2：Welded tube TA2 cold rolled titaniums are prepared using ingredient composition raw material same as Example 2 and processing technology
Band, but finished product does not carry out laser roughening roller skin pass rolling, and the titanium band performance and surface roughness of acquisition are shown in Table 2.
By table 2 as it can be seen that embodiment 2 obtains the 0.7mm thickness specifications TA2 suitable for welded tube forming using the art of this patent
Cold rolled titanium band, the control of titanium band strength, hereinafter, simultaneously by laser roughening roller skin pass rolling, it is hard to significantly improve surface in 350MPa
Degree and roughness.Same size cold rolled titanium band prepared by comparative example 2, does not carry out finished product texturing roller skin pass rolling, although laterally bending
It is relatively low taking intensity, but case hardness is low, roughness is small, surface abrasion resistance is poor, during welded tube is produced, titanium band and forming roller
Mold adhesiveness is strong, surface of welded pipe molding polishing scratch defect easily occurs, and cause to need frequently to repair roller in production process, welded tube forming roll
Die life is low.Compared with comparative example 2, embodiment 2 solves the above problem, the TA2 cold rolled titaniums prepared using embodiment 2
Band production welded tube, surface reduce titanium band with being molded the adhesiveness of roller mould, extend welded tube forming roll without molding polishing scratch defect
Die life, service life is improved by 40 myriametres to 75 myriametres, and production process after each reconditioning of welded tube forming roller mould
Middle abnormal quality is small, production efficiency is high, and advantage is notable.
2 embodiment 2 of table and 2 cold rolled titanium of comparative example band welded tube produce and use Contrast on effect table
Technical solution and embodiment and non-limiting cited by the present invention, with the technical solution cited by the present invention and implementation
Mode is equivalent or effect same approach is all in the range of the present invention protects.
Claims (3)
1. a kind of preparation method of low-intensity, easily molded welded tube TA2 cold rolled titanium bands, it is characterised in that：Include the following steps：
Step 1: raw material prepare：Take major ingredient titanium sponge and dispensing titanium dioxide and be pressed into electrode, define dispensing Fe, C,
N, O impurity contents mass percent is respectively [Fe] %, [C] %, [N] %, [O] %, is defined [O]WhenFor characterizing dispensing impurity
Element whole content, then dispensing impurity element components meet the following conditions：
[O]When=[O] %+0.5* [Fe] %+0.7* [C] %+2.5* [N] %=0.10 ~ 0.20%,
Then by the electrode suppressed is smelting successively, forging, hot rolling, cold rolling, annealing operation, acquisition thickness is 0.6 ~ 2.5mm
Annealed state TA2 cold rolled titaniums band blank；
Step 2, cold rolling：The titanium band blank being prepared in step 1 is taken, TA2 titaniums band blank is carried out using cold mill complex cold
It rolls, control cold rolling reduction is 40 ~ 80%, and TA2 titaniums band blank is cold-rolled to 0.3 ~ 1.0mm, obtains semi-finished product titanium band, spare；
Step 3, degreasing：The semi-finished product titanium band in step 2 is taken to carry out continuous wash and drying to it using degreasing unit, is prepared
Surface is obtained without greasy dirt, drying, clean cold rolling titanium strip coil, it is spare；
Step 4, continuous annealing：Flat place is carried out out to the cold rolled titanium band volume in step 3 using the continuous annealing line of argon gas protection
Reason, split flat treated cold rolled titanium band volume carries out line annealing, 600 ~ 750 degrees Celsius of annealing temperature, during annealing heat preservation
Between 1 ~ 5min；
Step 5, pickling：Using mix acid liquor to titanium band carries out pickling, and dries after continuous annealing treatment in step 4；
Step 6, it is smooth：Skin pass rolling is carried out to step 5 treated titanium band using planisher, first temper mill roller is carried out
Laser roughening is handled, and roughness is 0.5 ~ 4 μm after roller texturing, then carries out skin pass rolling, and control skin pass rolling drafts is
0.5~2%；
Step 7, degreasing sampling：It takes step 6 treated the degreasing method that titanium band is repeated in step 3 to carry out ungrease treatment, obtain
Obtain welded tube TA2 cold rolled titaniums band finished product.
2. a kind of low-intensity according to claim 1, the easily molded welded tube preparation method of TA2 cold rolled titanium bands, feature
It is：The mix acid liquor is hydrofluoric acid, the mixture of nitric acid, water, and wherein hydrofluoric acid mass concentration is 1.5 ~ 3%, nitric acid matter
A concentration of 12 ~ 20% are measured, remaining as water.
3. a kind of low-intensity according to claim 1, the preparation method of easily molded welded tube TA2 cold rolled titanium bands,
It is characterized in that：The step three semi-finished product titanium band degreasing speed is 5 ~ 10m/ minutes, 40 ~ 65 degrees Celsius of degreaser temperature,
40 ~ 60 degrees Celsius of drying box temperature.
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| CN201810138353.6A CN108165822B (en) | 2018-02-10 | 2018-02-10 | Preparation method of TA2 cold-rolled titanium strip for low-strength and easy-to-form welded pipe |
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Cited By (9)
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|---|---|---|---|---|
| CN109127781A (en) * | 2018-06-28 | 2019-01-04 | 洛阳双瑞精铸钛业有限公司 | A kind of smooth template technique for cold rolled titanium roll |
| CN109797313A (en) * | 2018-12-19 | 2019-05-24 | 洛阳双瑞精铸钛业有限公司 | A kind of cookware punching press titanium volume and preparation method thereof |
| CN111872115A (en) * | 2020-06-19 | 2020-11-03 | 洛阳双瑞精铸钛业有限公司 | Process method for improving surface roughness of cold-rolled titanium strip coil |
| CN112620346A (en) * | 2020-11-13 | 2021-04-09 | 江苏甬金金属科技有限公司 | Production method of wide-width precise cold-rolled titanium material |
| CN113948721A (en) * | 2021-09-08 | 2022-01-18 | 洛阳双瑞精铸钛业有限公司 | Preparation method of titanium metal bipolar plate substrate of hydrogen fuel cell |
| CN115369411A (en) * | 2021-10-25 | 2022-11-22 | 塞尔纳新材料(武汉)有限公司 | Environment-friendly surface cleaning process for cold-rolled titanium and titanium alloy plates |
| CN117600776A (en) * | 2023-11-15 | 2024-02-27 | 鞍钢联众(广州)不锈钢有限公司 | A method for producing large-weight and wide-width pure titanium cold-rolled coils |
| CN118123435A (en) * | 2024-05-07 | 2024-06-04 | 洛阳双瑞精铸钛业有限公司 | Method for eliminating surface defects of thin-wall titanium welded pipe |
| CN118751714A (en) * | 2024-09-05 | 2024-10-11 | 湖南湘投金天钛金属股份有限公司 | Titanium alloy plate and preparation method thereof |
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| CN107502751A (en) * | 2017-07-17 | 2017-12-22 | 洛阳双瑞精铸钛业有限公司 | A kind of method for obtaining TA2 slab ingots with bits shape and the pure titanium defective material melting recovery of tabular |
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| CN109127781A (en) * | 2018-06-28 | 2019-01-04 | 洛阳双瑞精铸钛业有限公司 | A kind of smooth template technique for cold rolled titanium roll |
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| CN111872115A (en) * | 2020-06-19 | 2020-11-03 | 洛阳双瑞精铸钛业有限公司 | Process method for improving surface roughness of cold-rolled titanium strip coil |
| CN111872115B (en) * | 2020-06-19 | 2022-02-25 | 洛阳双瑞精铸钛业有限公司 | Process method for improving surface roughness of cold-rolled titanium strip coil |
| CN112620346A (en) * | 2020-11-13 | 2021-04-09 | 江苏甬金金属科技有限公司 | Production method of wide-width precise cold-rolled titanium material |
| CN113948721A (en) * | 2021-09-08 | 2022-01-18 | 洛阳双瑞精铸钛业有限公司 | Preparation method of titanium metal bipolar plate substrate of hydrogen fuel cell |
| CN115369411A (en) * | 2021-10-25 | 2022-11-22 | 塞尔纳新材料(武汉)有限公司 | Environment-friendly surface cleaning process for cold-rolled titanium and titanium alloy plates |
| CN115369411B (en) * | 2021-10-25 | 2023-08-18 | 塞尔纳新材料(武汉)有限公司 | Environment-friendly surface cleaning process for cold-rolled titanium and titanium alloy plates |
| CN117600776A (en) * | 2023-11-15 | 2024-02-27 | 鞍钢联众(广州)不锈钢有限公司 | A method for producing large-weight and wide-width pure titanium cold-rolled coils |
| CN118123435A (en) * | 2024-05-07 | 2024-06-04 | 洛阳双瑞精铸钛业有限公司 | Method for eliminating surface defects of thin-wall titanium welded pipe |
| CN118123435B (en) * | 2024-05-07 | 2024-08-09 | 洛阳双瑞精铸钛业有限公司 | Method for eliminating surface defects of thin-wall titanium welded pipe |
| CN118751714A (en) * | 2024-09-05 | 2024-10-11 | 湖南湘投金天钛金属股份有限公司 | Titanium alloy plate and preparation method thereof |
| CN118751714B (en) * | 2024-09-05 | 2024-12-06 | 湖南湘投金天钛金属股份有限公司 | Titanium alloy plate and preparation method thereof |
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