CN112916791A - Production process of high-strength Ti80 titanium ring - Google Patents
Production process of high-strength Ti80 titanium ring Download PDFInfo
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- CN112916791A CN112916791A CN202110076787.XA CN202110076787A CN112916791A CN 112916791 A CN112916791 A CN 112916791A CN 202110076787 A CN202110076787 A CN 202110076787A CN 112916791 A CN112916791 A CN 112916791A
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- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical group [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000005242 forging Methods 0.000 claims abstract description 41
- 238000010304 firing Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 238000000137 annealing Methods 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims description 70
- 238000000227 grinding Methods 0.000 claims description 56
- 238000004080 punching Methods 0.000 claims description 40
- 238000007493 shaping process Methods 0.000 claims description 40
- 230000010485 coping Effects 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 6
- 239000010936 titanium Substances 0.000 claims description 6
- 230000007547 defect Effects 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 2
- 239000000047 product Substances 0.000 claims 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical group O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims 4
- 239000012467 final product Substances 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000011534 incubation Methods 0.000 description 5
- 229910001069 Ti alloy Inorganic materials 0.000 description 4
- 239000013072 incoming material Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 229910001040 Beta-titanium Inorganic materials 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/76—Making machine elements elements not mentioned in one of the preceding groups
- B21K1/761—Making machine elements elements not mentioned in one of the preceding groups rings
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/40—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rings; for bearing races
-
- 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)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Forging (AREA)
Abstract
The invention discloses a production process of a high-strength Ti80 titanium ring, which comprises the steps of carrying out first firing, cogging and forging, preheating for 1.5-2.5 hours at 750-845 ℃ by using 4500T equipment, then heating to 985-1125 ℃, and keeping the temperature for 385-405 min; using 2000T equipment, keeping the temperature of 1000-1065 ℃ for 185-235 min; thirdly, using 2000T equipment, and keeping the temperature at 945-995 ℃ for 185-240 min; fourthly, using 2000T equipment, and keeping the temperature at 935-985 ℃ for 105-155 min; fifthly, using 2000T equipment to obtain a finished product at 925-975 ℃; sixth fire, annealing is carried out at 755-805 ℃, and the tensile strength, yield strength, elongation, shrinkage, impact strength and hardness of the Ti80 titanium ring in experimental data are superior to standard requirements through comparison after detection by the production process of the Ti80 titanium ring provided by the invention, so that the requirements of many practical applications can be met.
Description
Technical Field
The invention relates to the technical field of non-ferrous metal production processes, in particular to a production process of a Ti80 titanium ring.
Background
The Ti80 titanium alloy is a novel Ti-Al-Nb-Zr-Mo series alpha + beta titanium alloy independently developed in China. The titanium alloy has the comprehensive properties of high strength, high toughness, weldability, corrosion resistance, good low cycle fatigue, higher impact toughness and the like, compared with the traditional titanium alloy TC4, the plasticity is improved by 3-5 percent, the impact toughness is improved by nearly 2 times, and the titanium alloy is widely applied to the fields of aviation, aerospace, navigation and the like, and particularly has good application prospect in the field of ocean engineering. At present, large-size forging stocks are gradually adopted in the field of ocean engineering to prepare parts such as pressure vessels, pressure-resistant shells and the like, the larger the size of the forging stock is, the heavier the single weight is, and the more difficult the control of the structural uniformity is, so that the strength of a Ti80 titanium ring is not high enough, and the problem needs to be solved urgently.
Disclosure of Invention
In order to solve the problem that the strength of the Ti80 titanium ring obtained by the existing Ti80 titanium ring production process is not high enough, the invention provides a production process of a Ti80 titanium ring with high strength.
The invention is realized by the following technical scheme:
the invention specifically provides a production process of a high-strength Ti80 titanium ring, which comprises the following steps:
(1) the method comprises the steps of firstly firing, cogging and forging, preheating for 1.5-2.5 hours at 750-845 ℃ by using 4500T equipment, heating to 985-1125 ℃, preserving heat for 385-405 min, returning and cogging two-upset and three-pulled blanks, performing air cooling, coping, blanking, dividing the blanks into two pieces of 340-380 kg, 400-420 kg, 160-190 kg, 200-215 kg, 100-120 kg and 500kg according to the weight of finished product size and forging size, and taking 475kg as residual materials.
(2) And secondly, using 2000T equipment, keeping the temperature at 1000-1065 ℃ for 185-235 min, completing three-upsetting and three-drawing, air cooling, coping, blanking, and dividing blanking into 80-90 kg blanking pieces, 50-60 kg blanking pieces and 65-75 kg blanking pieces according to the weight of 50-60, 65-75 and 80-90 kg finished product size and forging size.
(3) And thirdly, using 2000T equipment, keeping the temperature at 945-995 ℃ for 185-240 min, completing three-upsetting and three-drawing, air cooling and grinding.
(4) And fourthly, using 2000T equipment, keeping the temperature at 935-985 ℃ for 105-155 min, and then: 1. shaping to phi 710 multiplied by 180 after one upsetting and one drawing, punching a pad for 3-5 kg, and air cooling and grinding. 2. Shaping to phi 520 multiplied by 180 after the first upsetting and the first drawing are finished, punching a pad for 3-5 kg, and air cooling and grinding. 3. Shaping to phi 390 x 150 after finishing one upsetting and one drawing, punching a pad for 0.8-1.2 kg, and air cooling and grinding. 4. Shaping to phi 330 multiplied by 120 after one upsetting and one drawing, punching a pad for 0.8-1.2 kg, and air cooling and grinding.
(5) And fifthly, using 2000T equipment to obtain a finished product at 925-975 ℃.
(6) And sixth annealing at 755-805 ℃.
Preferably, first firing, cogging and forging, preheating for 2 hours at 800 ℃ by using 4500T equipment, heating to 1050 ℃, preserving heat for 380min, returning and cogging the two-upset and three-pull blank, performing air cooling, coping, blanking, dividing the blank into 95-110 kg, 170-195 kg, 200-235 kg, 320-375 kg and 400-420 kg according to the weight of the finished product size and the forging size, dividing the blanking into 340-380 kg blanks, 400-420 kg one blank, 160-190 kg two blanks, 200-215 kg one blank, 100-120 kg one blank, and the balance ranging from 450kg to 500kg, wherein 475kg is taken as the balance.
Preferably, the second fire is carried out by using 2000T equipment, heat preservation is carried out for 210min at 1020 ℃, three upsetting and three drawing are completed, air cooling, coping and blanking are carried out, and according to the weight of 50-60, 65-75 and 80-90 kg of finished product size and forging size, blanking is divided into 80-90 kg of blanking, 50-60 kg of blanking and 65-75 kg of blanking.
Preferably, the third fire is 2000T equipment, the temperature is 970 ℃ and kept for 210min, and the three steps of upsetting, drawing, air cooling and grinding are completed.
Preferably, the fourth fire, using a 2000T apparatus, is carried out at 960 ℃ and maintained for 130min, after which: 1. shaping to phi 710 multiplied by 180 after the first upsetting and the first drawing are finished, punching a pad for 3-5 kg, taking 4kg at this time, and air cooling and grinding. 2. Shaping to phi 520 multiplied by 180 after the first upsetting and the first drawing are finished, punching a pad for 3-5 kg, taking 4kg at this time, and air cooling and grinding. 3. Shaping to phi 390 x 150 after the first upsetting and the first drawing, punching a pad with the weight of 0.8-1.2 kg, taking 1kg at this time, and air cooling and grinding. 4. Shaping to phi 330 multiplied by 120 after the first upsetting and the first drawing are finished, punching a pad by 0.8-1.2 kg, taking 1kg at this time, and air cooling and grinding.
Preferably, the fifth fire is used for upsetting and drawing at 950 ℃ by using a 2000T device, and then a finished product is obtained.
Preferably, the sixth fire is annealed at 780 ℃.
Preferably, 2315kg of phi 760 ingot type is selected as the cogging forging incoming material.
Preferably, the phase transformation point of the titanium ingot is actually measured and calculated to be 975-980 ℃, and the temperature of the subsequent forging process is determined by referring to the phase transformation point.
Preferably, the grinding is 100% grinding of the surface, and the pit defect is smoothly transited.
By implementing the technical scheme of the invention, the following beneficial effects can be achieved:
1. through the production process of the Ti80 titanium ring provided by the invention, comparison after detection shows that the tensile strength, yield strength, elongation, shrinkage, impact strength and hardness of the Ti80 titanium ring in five groups of experimental data are all superior to standard requirements, and the requirements of many practical applications can be met.
Detailed Description
The present invention will be described below by way of examples, but the present invention is not limited to the following examples.
The apparatus and instruments used in the present invention are all apparatuses commonly used in the art, but do not limit the practice of the present invention, and other reagents and apparatuses well known in the art can be applied to the practice of the following embodiments of the present invention.
The first embodiment is as follows:
a production process of a high-strength Ti80 titanium ring comprises the following steps:
(1) the method comprises the steps of firstly firing, cogging and forging, preheating for 2.5 hours at 750 ℃ by using 4500T equipment, heating to 985 ℃, keeping the temperature for 385min, enabling blanks subjected to two upsetting and three drawing to be subjected to remelting and cogging, carrying out air cooling, coping, blanking, dividing the blanks into two pieces of blanking 340-380 kg, 400-420 kg, 160-190 kg, 200-215 kg, 100-120 kg and the balance of 450-500 kg according to the weight of finished product size and forging size, and taking 475kg as the balance.
(2) And secondly, using 2000T equipment, keeping the temperature at 1000 ℃ for 235min, completing three upsetting and three drawing, air cooling, coping, blanking, and dividing blanking into 80-90 kg of blanks, 50-60 kg of blanks and 65-75 kg of blanks according to the weight of 50-60, 65-75 and 80-90 kg of finished product size and forging size, and blanking 65-75 kg of blanks.
(3) And thirdly, using 2000T equipment, keeping the temperature at 945 ℃ for 240min, completing the three-upsetting and three-drawing, air cooling and grinding.
(4) The fourth fire, using a 2000T apparatus, at 935 ℃ and 155min incubation, was followed: 1. shaping to phi 710 multiplied by 180 after the first upsetting and the first drawing are finished, punching a pad for 3-5 kg, taking 3.5kg at this time, and air cooling and grinding. 2. Shaping to phi 520 multiplied by 180 after the first upsetting and the first drawing are finished, punching a pad for 3-5 kg, taking 3.5kg at this time, and air cooling and grinding. 3. Shaping to phi 390 x 150 after the first upsetting and the first drawing, punching a pad with 0.8-1.2 kg, taking 0.8kg at this time, and air cooling and grinding. 4. Shaping to phi 330 multiplied by 120 after the first upsetting and the first drawing are finished, punching a pad by 0.8-1.2 kg, taking 0.8kg at this time, and air cooling and grinding.
(5) And fifthly, performing upsetting and drawing at 925 ℃ by using 2000T equipment to obtain a finished product.
(6) And sixth annealing at 755 ℃.
Example two:
a production process of a high-strength Ti80 titanium ring comprises the following steps:
(1) the method comprises the steps of firstly firing, cogging and forging, preheating for 2.2 hours at 780 ℃ by using 4500T equipment, heating to 1000 ℃, keeping the temperature for 370min, returning and cogging the two-upset and three-pull blank, carrying out air cooling, coping, blanking, dividing the blank into 95-110 kg, 170-195 kg, 200-235 kg, 320-375 kg and 400-420 kg according to the weight of the finished product size and the forging size, dividing the blanking into 340-380 kg blanks, 400-420 kg one blank, 160-190 kg two blanks, 200-215 kg one blank, 100-120 kg one blank, and taking 475kg as the remainder.
(2) And secondly, using 2000T equipment, keeping the temperature at 1010 ℃ for 220min, completing three upsetting and three drawing, air cooling, coping, blanking, and dividing blanking into 80-90 kg, 50-60 kg and 65-75 kg according to the weight of the finished product and the forging size, wherein the blanking is divided into 80-90 kg, 50-60 kg and 65-75 kg.
(3) And thirdly, using 2000T equipment, keeping the temperature at 960 ℃ for 220min, completing three upsetting and three drawing, air cooling and grinding.
(4) A fourth fire, using a 2000T apparatus, at 950 ℃ and incubation for 140min, after which: 1. shaping to phi 710 multiplied by 180 after the first upsetting and the first drawing are finished, punching a pad for 3-5 kg, taking 3.8kg at this time, and air cooling and grinding. 2. Shaping to phi 520 multiplied by 180 after the first upsetting and the first drawing are finished, punching a pad for 3-5 kg, taking 3.8kg at this time, and air cooling and grinding. 3. Shaping to phi 390 x 150 after the first upsetting and the first drawing, punching a pad by 0.8-1.2 kg, taking 0.9kg at this time, and air cooling and grinding. 4. Shaping to phi 330 multiplied by 120 after the first upsetting and the first drawing are finished, punching a pad by 0.8-1.2 kg, taking 0.9kg at this time, and air cooling and grinding.
(5) And fifthly, using 2000T equipment, upsetting and drawing at 940 ℃ to obtain a finished product.
(6) Sixth fire, at 770 deg.C, anneal.
Example three:
a production process of a high-strength Ti80 titanium ring comprises the following steps:
(1) the method comprises the steps of firstly firing, cogging and forging, preheating for 2 hours at 800 ℃ by using 4500T equipment, heating to 1050 ℃, keeping the temperature for 380min, returning the two-upset and three-pulled blank to cogging, carrying out air cooling, coping, blanking, dividing the blank into 95-110 kg, 170-195 kg, 200-235 kg, 320-375 kg and 400-420 kg according to the weight of the finished product size and the forging size, dividing the blanking into 340-380 kg of blanks, 400-420 kg of blanks, 160-190 kg of blanks, 200-215 kg of blanks, 100-120 kg of blanks, and collecting 475kg of residual materials in the invention, wherein the range of the residual materials is 450-500 kg.
(2) And secondly, using 2000T equipment, keeping the temperature at 1020 ℃ for 210min, completing three upsetting and three drawing, air cooling, coping, blanking, and dividing blanking into 80-90 kg, 50-60 kg and 65-75 kg according to the weight of the finished product and the forging size, wherein the blanking is divided into 80-90 kg, 50-60 kg and 65-75 kg.
(3) And thirdly, using 2000T equipment, keeping the temperature at 970 ℃ for 210min, completing the three-upsetting and three-drawing, air cooling and grinding.
(4) A fourth fire, using a 2000T apparatus, at 960 ℃ and incubation for 130min, after which: 1. shaping to phi 710 multiplied by 180 after the first upsetting and the first drawing are finished, punching a pad for 3-5 kg, taking 4kg at this time, and air cooling and grinding. 2. Shaping to phi 520 multiplied by 180 after the first upsetting and the first drawing are finished, punching a pad for 3-5 kg, taking 4kg at this time, and air cooling and grinding. 3. Shaping to phi 390 x 150 after the first upsetting and the first drawing, punching a pad with the weight of 0.8-1.2 kg, taking 1kg at this time, and air cooling and grinding. 4. Shaping to phi 330 multiplied by 120 after the first upsetting and the first drawing are finished, punching a pad by 0.8-1.2 kg, taking 1kg at this time, and air cooling and grinding.
(5) And fifthly, performing upsetting and drawing at 950 ℃ by using 2000T equipment to obtain a finished product.
(6) Sixth fire, at 780 ℃, anneal.
Example four:
a production process of a high-strength Ti80 titanium ring comprises the following steps:
(1) the method comprises the steps of firstly firing, cogging and forging, preheating for 1.8 hours at 820 ℃ by using 4500T equipment, heating to 1100 ℃, keeping the temperature for 390min, enabling blanks subjected to two upsetting and three drawing to be subjected to remelting and cogging, carrying out air cooling, coping, blanking, dividing the blanks into 95-110 kg, 170-195 kg, 200-235 kg, 320-375 kg and 400-420 kg according to the weight of the finished product size and the forging size, dividing the blanking into 340-380 kg blanks, 400-420 kg one blank, 160-190 kg two blanks, 200-215 kg one blank, 100-120 kg one blank, and taking 475kg as the remainder.
(2) And secondly, using 2000T equipment, keeping the temperature at 1030 ℃ for 200min, completing three upsetting and three drawing, air cooling, coping, blanking, and dividing blanking into 80-90 kg of blanks, 50-60 kg of blanks and 65-75 kg of blanks according to the weight of 50-60, 65-75 and 80-90 kg of finished product size and forging size, and one blank of 65-75 kg.
(3) And thirdly, using 2000T equipment, keeping the temperature at 980 ℃ for 200min, completing three upsetting and three drawing, air cooling and grinding.
(4) A fourth fire using 2000T equipment at 970 ℃ and incubation for 120min, after which: 1. shaping to phi 710 multiplied by 180 after the first upsetting and the first drawing are finished, punching a pad for 3-5 kg, taking 4.2kg at this time, and air cooling and grinding. 2. Shaping to phi 520 multiplied by 180 after the first upsetting and the first drawing are finished, punching a pad for 3-5 kg, taking 4.2kg at this time, and air cooling and grinding. 3. Shaping to phi 390 x 150 after the first upsetting and the first drawing, punching a pad with the weight of 0.8-1.2 kg, taking 1.1kg at this time, and air cooling and grinding. 4. Shaping to phi 330 multiplied by 120 after the first upsetting and the first drawing are finished, punching a pad, taking 1.1kg, and air cooling and grinding the pad, wherein the pad is 0.8-1.2 kg.
(5) And fifthly, using 2000T equipment, upsetting and drawing at 960 ℃ to obtain a finished product. (6) Sixth fire, annealing at 790 ℃.
Example five:
a production process of a high-strength Ti80 titanium ring comprises the following steps:
(1) the method comprises the steps of firstly firing, cogging and forging, preheating for 1.5 hours at 845 ℃ by using 4500T equipment, heating to 1125 ℃, keeping the temperature for 405min, enabling blanks subjected to two upsetting and three drawing to be subjected to remelting and cogging, carrying out air cooling, coping, blanking, dividing the blanks into 95-110 kg, 170-195 kg, 200-235 kg, 320-375 kg and 400-420 kg according to the weight of the finished product size and the forging size, dividing the blanking into 340-380 kg blanks, 400-420 kg one blank, 160-190 kg two blanks, 200-215 kg one blank, 100-120 kg one blank, and taking 475kg as the remainder.
(2) And secondly, using 2000T equipment, keeping the temperature at 1065 ℃ for 185min, completing three upsetting and three drawing, air cooling, coping and blanking, wherein the blanking is divided into 80-90 kg, 50-60 kg and 65-75 kg according to the weight of the finished product and the forging size, and one blanking is 65-75 kg according to the weight of the finished product and the forging size.
(3) And thirdly, using 2000T equipment, keeping the temperature at 995 ℃ for 185min, completing the three-upsetting and three-drawing, air cooling and grinding.
(4) A fourth fire, using a 2000T apparatus, at 985 ℃ and incubation for 105min, was followed: 1. shaping to phi 710 multiplied by 180 after the first upsetting and the first drawing are finished, punching a pad for 3-5 kg, taking 4.5kg at this time, and air cooling and grinding. 2. Shaping to phi 520 multiplied by 180 after the first upsetting and the first drawing are finished, punching a pad for 3-5 kg, taking 4.5kg at this time, and air cooling and grinding. 3. Shaping to phi 390 x 150 after the first upsetting and the first drawing, punching a pad with the weight of 0.8-1.2 kg, taking 1.2kg at this time, and air cooling and grinding. 4. Shaping to phi 330 multiplied by 120 after the first upsetting and the first drawing are finished, punching a pad, taking 1.2kg, and air cooling and grinding, wherein the pad is 0.8-1.2 kg.
(5) And fifthly, performing upsetting and drawing at 975 ℃ by using 2000T equipment to obtain a finished product.
(6) Sixth fire, at 805 ℃, anneal.
Example six:
in the five different schemes provided in the first to fifth embodiments, 2315kg of a phi 760 ingot type is selected as the blank forging incoming material, the actually measured and calculated phase change point of the titanium ingot is 975-980 ℃, the temperature of the subsequent forging process is determined by referring to the phase change point, and the grinding is 100% grinding of the surface and smooth transition of pit defects.
Example seven:
the five different schemes provided in the above examples one to five were used to produce Ti80 titanacycles:
the test results of the normal temperature physical properties of the Ti80 titanium ring produced on the basis of the above experiments are shown in Table 1.
Table 1: ti80 titanium ring normal temperature physical property detection result
As can be seen from Table 1, the tensile strength, yield strength, elongation, shrinkage, impact strength and hardness of the Ti80 titanium ring in five groups of experimental data are all superior to standard requirements through comparison after detection of the production process of the Ti80 titanium ring provided by the invention, and the requirements of various practical applications can be met.
In conclusion, the technical scheme provided by the invention can improve the comprehensive performance of the Ti80 titanium ring to a certain extent.
Claims (10)
1. The production process of the high-strength Ti80 titanium ring is characterized by comprising the following steps of:
(1) the method comprises the steps of firstly firing, cogging and forging, preheating for 1.5-2.5 hours at 750-845 ℃ by using 4500T equipment, raising the temperature to 985-1125 ℃, preserving the temperature for 385-405 min, returning and cogging two-upset and three-pulled blanks, performing air cooling, coping, blanking, dividing the blanks into two pieces of 340-380 kg, 400-420 kg, 160-190 kg, 200-215 kg, 100-120 kg and 500kg of blanks according to the weight of finished product size and forging size, and taking 475kg of residual materials in the invention;
(2) secondly, using 2000T equipment, keeping the temperature at 1000-1065 ℃ for 185-235 min, completing three upsetting and three drawing, air cooling, coping, blanking, and dividing blanking into 80-90 kg blanking pieces, 50-60 kg blanking pieces and 65-75 kg blanking pieces according to the weight of 50-60, 65-75 and 80-90 kg finished product size and forging size;
(3) thirdly, using 2000T equipment, keeping the temperature at 945-995 ℃ for 185-240 min, completing three upsetting and three drawing, air cooling and grinding;
(4) and fourthly, using 2000T equipment, keeping the temperature at 935-985 ℃ for 105-155 min, and then: 1. shaping to phi 710 multiplied by 180 after the first upsetting and the first drawing are finished, punching a pad for 3-5 kg, and air cooling and grinding; 2. shaping to phi 520 multiplied by 180 after the first upsetting and the first drawing are finished, punching a pad for 3-5 kg, and air cooling and grinding; 3. shaping to phi 390 x 150 after the first upsetting and the first drawing, punching a pad by 0.8-1.2 kg, and air cooling and grinding; 4. shaping to phi 330 multiplied by 120 after the first upsetting and the first drawing are finished, punching a pad by 0.8-1.2 kg, and air cooling and grinding;
(5) fifthly, using 2000T equipment to obtain a finished product at 925-975 ℃;
(6) and sixth annealing at 755-805 ℃.
2. The process for producing a high-strength Ti80 titanacycle according to claim 1, comprising the steps of:
(1) the method comprises the steps of firstly, cogging and forging, preheating for 1.8-2.2 hours at 780-820 ℃ by using 4500T equipment, heating to 1000-1100 ℃, keeping the temperature for 370-390 min, enabling blanks subjected to two upsetting and three drawing to be subjected to remelting and cogging, carrying out air cooling, coping, blanking, dividing the blanks into 340-380 kg blanks according to the weight of finished product size and forging size, 400-420 kg and 400-420 kg according to the weight of finished product size and forging size, blanking into 400-420 kg, 160-190 kg, 200-215 kg, 100-120 kg and residual material in the range of 450-500 kg, and taking 475kg of residual material;
(2) secondly, using 2000T equipment, keeping the temperature at 1010-1030 ℃ for 200-220 min, completing three upsetting and three drawing, air cooling, coping and blanking, wherein the blanking is divided into 80-90 kg of blanking, 50-60 kg of blanking and 65-75 kg of blanking according to 50-60, 65-75 and 80-90 kg of weight of finished product size and forging size;
(3) thirdly, using 2000T equipment, keeping the temperature of 960-980 ℃ for 200-220 min, completing three upsetting and three drawing, air cooling and grinding;
(4) and fourthly, using 2000T equipment, keeping the temperature at 950-970 ℃ for 120-140 min, and then: 1. shaping to phi 710 multiplied by 180 after the first upsetting and the first drawing are finished, punching a pad for 3-5 kg, and air cooling and grinding; 2. shaping to phi 520 multiplied by 180 after the first upsetting and the first drawing are finished, punching a pad for 3-5 kg, and air cooling and grinding; 3. shaping to phi 390 x 150 after the first upsetting and the first drawing, punching a pad by 0.8-1.2 kg, and air cooling and grinding; 4. shaping to phi 330 multiplied by 120 after the first upsetting and the first drawing are finished, punching a pad by 0.8-1.2 kg, and air cooling and grinding;
(5) fifthly, using 2000T equipment to produce a finished product at 940-960 ℃;
(6) and sixth annealing at 770-790 ℃.
3. The process for producing a high-strength Ti80 Titania ring as claimed in claim 1, wherein the first firing, cogging and forging is carried out by preheating at 800 ℃ for 2 hours by using 4500T equipment, then heating to 1050 ℃, keeping the temperature for 380min, the blank after two upsetting and three drawing can be returned to the furnace for cogging, and then air cooling, coping, blanking are carried out, the blank is divided into 95-110 kg, 170-195 kg, 200-235 kg, 320-375, 400-420 kg according to the weight of the finished product size and the forging size, the blanking is divided into 340-380 kg, 400-420 kg, 160-190 kg, 200-215 kg, 100-120 kg and the remainder is 450-500 kg, and the remainder is 475 kg.
4. The process for producing the high-strength Ti80 Ti ring as claimed in claim 1, wherein the second fire is carried out by using 2000T equipment, keeping the temperature at 1020 ℃ for 210min, carrying out three-heading and three-drawing, air cooling, coping, blanking, and dividing the blanking into two parts of 80-90 kg, two parts of 50-60 kg and one part of 65-75 kg according to the weight of the finished product and the forging size, wherein the blanking is carried out by using 50-60 kg, 65-75 kg and 80-90 kg.
5. The process for producing the high-strength Ti80 Titania ring as claimed in claim 1, wherein the third fire is conducted by 2000T equipment at 970 ℃ for 210min to complete three-heading three-drawing, air cooling and grinding.
6. The process for producing a high-strength Ti80 Titania ring according to claim 1, wherein the fourth fire is conducted at 960 ℃ for 130min using a 2000T apparatus, and then: 1. shaping to phi 710 multiplied by 180 after the first upsetting and the first drawing are finished, punching a pad for 3-5 kg, taking 4kg at this time, and air cooling and grinding; 2. shaping to phi 520 multiplied by 180 after the first upsetting and the first drawing are finished, punching a pad for 3-5 kg, taking 4kg at this time, and air cooling and grinding; 3. shaping to phi 390 x 150 after the first upsetting and the first drawing, punching a pad, taking 1kg, and air cooling and grinding, wherein the pad is 0.8-1.2 kg; 4. shaping to phi 330 multiplied by 120 after the first upsetting and the first drawing are finished, punching a pad by 0.8-1.2 kg, taking 1kg at this time, and air cooling and grinding.
7. The process for producing a high-strength Ti80 Titania ring as claimed in claim 1, wherein the fifth firing is carried out by upsetting at 950 ℃ using 2000T equipment to obtain the final product.
8. The process for producing a high strength Ti80 titanacycle of claim 1 wherein the sixth fire is annealed at 780 ℃.
9. The production process of the high-strength Ti80 Ti ring of claim 1, wherein the cogging forging stock is 2315kg of phi 760 ingot type, the measured phase change point of the titanium ingot is 975-980 ℃, and the subsequent forging process temperature is determined by referring to the phase change point.
10. The process for producing a high-strength Ti80 Ti ring as claimed in claim 1, wherein the grinding is 100% grinding of the surface and smooth transition of pit defects.
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