CN101537439A - Preparation process of high-performance and high accuracy rods and bars of biological titanium alloy - Google Patents
Preparation process of high-performance and high accuracy rods and bars of biological titanium alloy Download PDFInfo
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- CN101537439A CN101537439A CN200910022219A CN200910022219A CN101537439A CN 101537439 A CN101537439 A CN 101537439A CN 200910022219 A CN200910022219 A CN 200910022219A CN 200910022219 A CN200910022219 A CN 200910022219A CN 101537439 A CN101537439 A CN 101537439A
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- 229910001069 Ti alloy Inorganic materials 0.000 title claims abstract description 16
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000005096 rolling process Methods 0.000 claims abstract description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000010936 titanium Substances 0.000 claims abstract description 4
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 4
- 238000005516 engineering process Methods 0.000 claims description 12
- 230000014759 maintenance of location Effects 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000005266 casting Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 229910001018 Cast iron Inorganic materials 0.000 claims description 3
- 238000000137 annealing Methods 0.000 claims description 3
- 239000008187 granular material Substances 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 239000012467 final product Substances 0.000 claims description 2
- 239000007769 metal material Substances 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 2
- 238000005242 forging Methods 0.000 abstract 2
- 239000002245 particle Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000003913 materials processing Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
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Abstract
The invention relates to a preparation process of high-performance and high-accuracy rods and bars of biological titanium alloy, which belongs to the technical field of material processing, in particular the processing of medical metal materials. The preparation process mainly comprises the following steps: firstly, raw material preparation: selecting short particle type sponge titanium to be used as electrodes; secondly, forging: heating and forging, wherein the heating is to heat cast ingots in a resistance furnace; thirdly, rolling: processing by adopting a method of heating to gradually distort; fourthly, heat treatment: adopting the automatic temperature control box type resistance furnace to perform the heat treatment to the obtained rods and bars; fifthly, warm-processing: correcting by adopting a warm-processing way; sixthly, intercepting the rods and bars with qualified sizes: performing the mechanical processing by adopting a skin-drawing machine centreless grinder, and obtaining the high-performance and high-accuracy rods and bars. The invention performs repetitious test works by using the controllability and the accuracy of high-power metallurgical structures of the materials as a breakthrough point, meets the performance requirements of different body positions of medical appliances in organisms, and achieves the accuracy and the controllability of various coefficients.
Description
Technical field
The invention belongs to the processing in materials processing technology field, particularly medical metal material.
Background technology
Present stage, the titanium alloy material of use in orthopedic implantation of China's production still was in elementary product, and the biology of a large amount of high-performance and high accuracies is still wanted dependence on import with titanium alloy.Analyze its main cause 2 points are arranged: one, inherent quality; Because the apparatus in the implantable bioartificial body requires the original function work of different positions cooperation organism in organism, it will have very high target parameter to material requirements.For example, reach high strength, low elastic modulus, accurate tensile strength numerical value will be arranged, accurate shrinkage factor numerical value, accurate high power metallurgical structure, but China many materials manufacturer does not reach so high level.Two, external quality.Had good inherent quality also to have high accuracy accurately appearance and size could be the bioimplant product of high-quality, want to guarantee size accurately, process with regard to adopting high-precision raw material, China is by the material of a large amount of import precision in h8 level-h7 level at present, processes the product of oneself.
Summary of the invention
The object of the invention provides a kind of preparation technology of high-performance and high accuracy rods and bars of biological titanium alloy, satisfies the performance requirement of medicine equipment different positions in organism.
Specifically, the preparation technology of high-performance and high accuracy rods and bars of biological titanium alloy, it comprises the steps:
(1) feedstock production: select for use the granule titanium sponge to manufacture electrode, welding electrode in the vacuum plasma welding chamber of vacuum≤10Pa, adopting vacuum consumable electrode arc furnace to carry out twice melting is the titanium ingot casting;
(2) forge processing: be divided into heating and forge step, and heating is that ingot casting is heated in resistance furnace, according to following table control temperature:
Control according to following table heat time heating time:
| Charging temperature | Preheating time after the charging temperature (minute) | Preheating time in the heat temperature raising (minute) | Temperature retention time under the heating-up temperature (minute) |
| 850℃～880℃ | 50 | 60 | 45～50 |
Forge to adopt on the pneumatic hammer processing and according to as following table control deflection and obtain the descale optical wand:
(3) rolling processing: adopt the method for the distortion one by one of heating to process, and control blank heating-up temperature in resistance furnace according to following table:
| Charging temperature | Heating-up temperature | Finishing temperature |
| 850℃～880℃ | 920℃～930℃ | 880℃ |
Adopt the cross-arranging type bar mill to be rolled and according to following table control temperature and deflection, according to following table control heat time heating time heat time heating time and the rolling bar that obtains:
| Heating-up temperature | Finishing temperature | The processing passage | Total deformation rate % | Remarks |
| 920℃～930℃ | 880℃ | 9-12 time | 70～75 | Adopt the multiformed technology of once heating |
Show heat time heating time:
| Charging temperature ℃ | Preheating time under the charging temperature (minute) | Preheating time in the heat temperature raising (minute) | Temperature retention time under the heating-up temperature (minute) |
| 800℃～850℃ | 90 | 100 | 70-80 |
(4) heat treatment: adopt automatic temperature-controlled chamber type electric resistance furnace that the bar that has obtained is heat-treated, annealing process is implemented according to the following table process conditions:
| Every stove charging kg | Heating-up temperature ℃ | Charging temperature ℃ | Preheating time under the charging temperature (minute) | Heat temperature raising preheating time (minute) | Temperature retention time under the heating-up temperature (minute) | The type of cooling |
| Below 250 | 760℃～770 ℃ | 650℃～700 ℃ | 45 | 50 | 60 | Air cooling |
(5) temperature processing: the mode of employing temperature processing is more straight to bar, and temperature processing heating condition according to the form below, adopts the automatic reciprocating straightener of 40T oil cylinder to carry out tension force then, the temperature material is placed on to cool off naturally on the planing surface cast iron platform get final product;
| Every stove charging kg | Heating-up temperature ℃ | Temperature retention time (minute) | Farm labourer does the time |
| Below 200 | 450℃～500℃ | 60 minutes | 100 minutes |
(6) intercepting qualified size bar: employing is pulled out skin machine coreless grinding machine and is carried out machining, obtains the high-performance and high accuracy titanium alloy rod bar.
The present invention has carried out repetitious experimental work with controlledization that solve the metallographic structure of material high power, accurately turn to point of penetration, has satisfied the performance requirement of medicine equipment different positions in organism, reaches precision, controlledization of every coefficient.Confirm to need only material high power metallographic structure precision, controlledization, a series of performances such as its tensile strength, the contraction percentage of area, elastic modelling quantity all can be controlled effectively and targeted.
The specific embodiment
Present embodiment is that the high-performance and high accuracy rods and bars of biological titanium alloy of Φ 14mm * 2000mm of TC4ELI is an example with the preparation trade mark.
Require: the grading of high power metallographic meets GB/T13810-2007A1-A2,
Tensile strength 〉=950Mpa,
Regulation disproportional extension strength 〉=850Mpa,
Elongation after fracture 〉=15%,
The contraction percentage of area 〉=35%.
The technology that adopts is as follows:
One, feedstock production
1, select for use Zun Yi one-level high-quality granule titanium sponge to manufacture electrode.
2, welding electrode in the vacuum plasma welding chamber of vacuum≤10Pa.
3, adopt the 1.5T vacuum consumable electrode arc furnace to carry out twice melting.
4, obtaining the ingot casting composition is:
Two, forge processing
1, heating: the ingot casting of Φ 360 * L (removing rising head) is heated in resistance furnace.
Show heat time heating time
| Charging temperature | Preheating time after the charging temperature (minute) | Preheating time in the heat temperature raising (minute) | Temperature retention time under the heating-up temperature (minute) |
| 850℃～880℃ | 50 | 60 | 45～50 |
2, forge:
According to different blanks, different link, adopt following deformation technique on the pneumatic hammer of 3T and 750kg pneumatic hammer, to process.
3, obtain the descale optical wand of Φ 60～65mm.
Three, rolling processing
Heat the one by one method of distortion of employing is processed.
1, heating: Φ 60～65mm blank is heated in resistance furnace.
| Charging temperature | Heating-up temperature | Finishing temperature |
| 850℃～880℃ | 920℃～930℃ | 880℃ |
2, rolling: as to adopt 250 model cross-arranging type bar mill to be rolled.
| Heating-up temperature | Finishing temperature | The processing passage | Total deformation rate % | Remarks |
| 920℃～930℃ | 880℃ | 9-12 time | 70～75 | Adopt the multiformed technology of once heating |
3, by the rolling rolling bar that obtains Φ 16mm * L
Show heat time heating time
| Charging temperature ℃ | Preheating time under the charging temperature (minute) | Preheating time in the heat temperature raising (minute) | Temperature retention time under the heating-up temperature (minute) |
| 800℃～850℃ | 90 | 100 | 70-80 |
Four, heat treatment
1, importance and necessity
For the TC4ELI titanium alloy, good mechanical performance depends primarily on the primary phase and β ratio and shape, size and distribution mutually in the tissue, and being hot-working and Technology for Heating Processing by alloy, their acquisition decides, above hot-working has provided strict processing technology, but last heat treatment remains indispensable important step.We adopt following operation to finish last heat treatment usually, to guarantee target high power metallographic structure accurately.
2, the equipment of Cai Yonging
600mm * 800mm * 80 kilowatts of automatic temperature-controlled chamber type electric resistance furnaces of 4000mm.Condition: three districts heat, and temperature difference requirement is less than ± 8 ℃.
3, annealing process
| Every stove charging kg | Heating-up temperature ℃ | Charging temperature ℃ | Preheating time under the charging temperature (minute) | Heat temperature raising preheating time (minute) | Temperature retention time under the heating-up temperature (minute) | The type of cooling |
| Below 250 | 760℃～770 ℃ | 650℃～700 ℃ | 45 | 50 | 60 | Air cooling |
Annotate: material evenly must be placed on the bin during air cooling, reach the effect of Homogeneouslly-radiating.
Five, temperature processing
Because the processing in early stage has obtained the bar of premium properties, brought huge trouble for the alignment work in later stage, we can adopt the mode of temperature processing to solve.
1, heating condition
| Every stove charging kg | Heating-up temperature ℃ | Temperature retention time (minute) | Farm labourer does the time |
| Below 200 | 450℃～500℃ | 60 minutes | 100 minutes |
2, tension force alignment
Adopt the automatic reciprocating straightener of 40T oil cylinder to carry out alignment.
3, cooling
The temperature material is placed on cooling naturally on the planing surface cast iron platform.
Six, cold working
Employing is pulled out skin machine coreless grinding machine and is carried out machining, obtains the high-performance and high accuracy titanium alloy rod bar of Φ 14 * 2000mm.
Seven, detect
According to:
The GB/T5168 diphasic titanium alloy high-low time tissue method of inspection is carried out the high power metal lographic examination.
GB/T228 metal material room temperature tensile method check mechanical property.
The GB/T3620.1 titanium or titanium alloy trade mark and chemical composition detect chemical composition.
Owing to studied and defined out scientific and effective technical matters, successfully manufactured out high-performance and high accuracy rods and bars of biological titanium alloy in batches in principle at this.
Claims (1)
1, the preparation technology of high-performance and high accuracy rods and bars of biological titanium alloy is characterized in that comprising the steps:
(1) feedstock production: select for use the granule titanium sponge to manufacture electrode, welding electrode in the vacuum plasma welding chamber of vacuum≤10Pa, adopting vacuum consumable electrode arc furnace to carry out twice melting is the titanium ingot casting;
(2) forge processing: be divided into heating and forge step, and heating is that ingot casting is heated in resistance furnace, according to following table control temperature:
Control according to following table heat time heating time:
Forge to adopt on the pneumatic hammer processing and according to as following table control deflection and obtain the descale optical wand:
(3) rolling processing: adopt the method for the distortion one by one of heating to process, and control blank heating-up temperature in resistance furnace according to following table:
Adopt the cross-arranging type bar mill to be rolled and according to following table control temperature and deflection, according to following table control heat time heating time heat time heating time and the rolling bar that obtains:
Show heat time heating time:
(4) heat treatment: adopt automatic temperature-controlled chamber type electric resistance furnace that the bar that has obtained is heat-treated, annealing process is implemented according to the following table process conditions:
(5) temperature processing: the mode of employing temperature processing is more straight to bar, and temperature processing heating condition according to the form below, adopts the automatic reciprocating straightener of 40T oil cylinder to carry out tension force then, the temperature material is placed on to cool off naturally on the planing surface cast iron platform get final product;
(6) intercepting qualified size bar: employing is pulled out skin machine coreless grinding machine and is carried out machining, obtains the high-performance and high accuracy titanium alloy rod bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100222190A CN101537439B (en) | 2009-04-28 | 2009-04-28 | Preparation process of high-performance and high accuracy rods and bars of biological titanium alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100222190A CN101537439B (en) | 2009-04-28 | 2009-04-28 | Preparation process of high-performance and high accuracy rods and bars of biological titanium alloy |
Publications (2)
| Publication Number | Publication Date |
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| CN101537439A true CN101537439A (en) | 2009-09-23 |
| CN101537439B CN101537439B (en) | 2011-02-16 |
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| CN2009100222190A Active CN101537439B (en) | 2009-04-28 | 2009-04-28 | Preparation process of high-performance and high accuracy rods and bars of biological titanium alloy |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102240890A (en) * | 2011-05-20 | 2011-11-16 | 西部钛业有限责任公司 | Manufacturing method of thick-walled titanium tube |
| CN102990283A (en) * | 2012-11-13 | 2013-03-27 | 宝鸡市德立钛业有限责任公司 | Preparation method of medical high-precision titanium and titanium alloy bar material |
| CN106425294A (en) * | 2016-09-21 | 2017-02-22 | 宝鸡鑫诺新金属材料有限公司 | Preparation technique for magnetostriction TC4 alloy bar special for dental department |
| CN106825102A (en) * | 2017-01-20 | 2017-06-13 | 大连盛辉钛业有限公司 | A kind of method that raising TC4 Medical U-shapeds follow closely necking dimensional stability |
| CN107717354A (en) * | 2017-11-06 | 2018-02-23 | 金学芳 | A kind of preparation method of body implant titanium alloy rod bar |
| CN113088758A (en) * | 2021-03-12 | 2021-07-09 | 宝鸡鑫诺新金属材料有限公司 | Production method of TB3 titanium alloy disc wire for fasteners |
| CN114799738A (en) * | 2022-03-24 | 2022-07-29 | 新疆湘润新材料科技有限公司 | Preparation method of TC4 titanium alloy thin-wall ring material |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151774A (en) * | 2011-03-16 | 2011-08-17 | 湖南金天钛业科技有限公司 | Production method of large-size high-unit-weight pure-titanium forging plate blank |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102240890A (en) * | 2011-05-20 | 2011-11-16 | 西部钛业有限责任公司 | Manufacturing method of thick-walled titanium tube |
| CN102240890B (en) * | 2011-05-20 | 2015-12-02 | 西部钛业有限责任公司 | A kind of manufacture method of thick-walled titanium tube |
| CN102990283A (en) * | 2012-11-13 | 2013-03-27 | 宝鸡市德立钛业有限责任公司 | Preparation method of medical high-precision titanium and titanium alloy bar material |
| CN106425294A (en) * | 2016-09-21 | 2017-02-22 | 宝鸡鑫诺新金属材料有限公司 | Preparation technique for magnetostriction TC4 alloy bar special for dental department |
| CN106825102A (en) * | 2017-01-20 | 2017-06-13 | 大连盛辉钛业有限公司 | A kind of method that raising TC4 Medical U-shapeds follow closely necking dimensional stability |
| CN107717354A (en) * | 2017-11-06 | 2018-02-23 | 金学芳 | A kind of preparation method of body implant titanium alloy rod bar |
| CN113088758A (en) * | 2021-03-12 | 2021-07-09 | 宝鸡鑫诺新金属材料有限公司 | Production method of TB3 titanium alloy disc wire for fasteners |
| CN114799738A (en) * | 2022-03-24 | 2022-07-29 | 新疆湘润新材料科技有限公司 | Preparation method of TC4 titanium alloy thin-wall ring material |
| CN114799738B (en) * | 2022-03-24 | 2023-12-22 | 新疆湘润新材料科技有限公司 | Preparation method of TC4 titanium alloy thin-wall ring material |
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| CN101537439B (en) | 2011-02-16 |
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