CN109013734A - The extruding production of titanium alloy thin wall profile - Google Patents
The extruding production of titanium alloy thin wall profile Download PDFInfo
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- CN109013734A CN109013734A CN201810833924.8A CN201810833924A CN109013734A CN 109013734 A CN109013734 A CN 109013734A CN 201810833924 A CN201810833924 A CN 201810833924A CN 109013734 A CN109013734 A CN 109013734A
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- titanium alloy
- profile
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- bar stock
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
- B21C25/025—Selection of materials therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/32—Lubrication of metal being extruded or of dies, or the like, e.g. physical state of lubricant, location where lubricant is applied
-
- 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)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Forging (AREA)
- Extrusion Of Metal (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The present invention provides a kind of extruding production of titanium alloy thin wall profile.The erosion resistant titanium alloy includes: to melt out TC4 titanium alloy Φ 710mm ingot casting, by ingot casting in the bar stock for being forged into 220 × L of Φ mm, extrusion cylinder, extrusion die, dummy block are preheated, 300~500 DEG C of preheating temperature, smearing lubricated then is carried out to compression tool using lubricant；Bar stock is quickly transferred to extrusion cylinder, is transferred to the time less than 1min, 120~300mm/S of extrusion speed；Titanium alloy profile is made.The extruding production of titanium alloy thin wall profile provided in an embodiment of the present invention not only realizes extruding preparation of the thin-walled small-cross section profiles on large-tonnage extruder, while die cost, personnel cost, equipment operating cost etc. substantially reduce；Compared with traditional handicraft, this method is without increasing process or specially treated process, and strong operability is, it can be achieved that the extruding of the titanium alloy profile of all cross sectional shapes at present.
Description
Technical field
The present invention relates to the preparation technical fields of titanium alloy profile, specifically, being related to a kind of squeezing for titanium alloy thin wall profile
Suppress Preparation Method.
Background technique
Domestic and international titanium alloy profile product is all made of extruding+orthopedic technology production, currently, one extrusion die when profile extrusion
Tool can only squeeze out a profile, and an extrusion process also can only prepare a profile, and mold consumption is big, utilization rate is low, production
Low efficiency, equipment operation and personnel cost are high.
The titanium alloy profile technology of preparing of the relevant technologies, extrusion die consumption is big, production efficiency is low, equipment is run and personnel
At high cost, the production cycle is long.Therefore, the manufacturing cost of titanium alloy profile is higher, the production cycle is long.
Summary of the invention
In order to solve the above technical problem, the present invention provides a kind of extruding productions of titanium alloy thin wall profile.
Technical scheme is as follows:
A kind of extruding production of titanium alloy thin wall profile, includes the following steps:
Step 1, TC4 titanium alloy Φ 710mm ingot casting is melted out using vacuum consumable electrode arc furnace, melting 2 times；Ingot casting is carried out
Milling processing is dug, test transformation temperature is 970~1000 DEG C；
Step 2, fast at 2500 tons after being heated in gas furnace after the ingot casting of step 1 being coated antioxidant defense coating
It is forged into the bar stock of 220 × L of Φ mm in forging machine, is forged at 1180~1200 DEG C 2~3 fiery times, (alpha+beta) two-phase section forging 1~
2 fire guarantee that total deformation is greater than 50%；
Step 3, by the bar stock of step 2, the machined optical wand base for obtaining 216 × 350mm of Ф；
Step 4, optical wand base made from step 3 is cleaned using alcohol, is placed in resistance furnace, dried at 250 DEG C
15 minutes, inoxidzable coating processing is carried out after taking-up；
Step 5, bar stock step 4 obtained is heated to 1000~1200 DEG C in induction heater and is heated, heat preservation
30min；
Step 6, extrusion cylinder, extrusion die, dummy block are preheated, the extrusion die is bimodulus hole extrusion die, preheating temperature
300~500 DEG C of degree, then carries out smearing lubricated to compression tool using lubricant；
Step 7, the bar stock after step 5 heating is quickly transferred to extrusion cylinder, is transferred to the time less than 1min, extrusion speed 120
~300mm/S；
Step 8, profile step 7 squeezed out, which is placed in vacuum annealing furnace, to be made annealing treatment；Annealing temperature be 680~
It is 760 DEG C, soaking time 1~3h, air-cooled；
Step 9, the profile after step 8 heat treatment is subjected to straightening processing, straightening force aligns mode；
Step 10, the profile after step 9 aligning is surface-treated, then first sandblasting carries out pickling, titanium alloy is made
Profile.
Preferably, the die hole structure of the cross section of the extrusion die be L shape or T shape, the quantity of the die hole be 2 and
It is symmetrically distributed in the axle center two sides of the extrusion die, the machining accuracy ± 0.1mm of the die hole.
Preferably, the material of the extrusion die uses 3Cr2W8V refractory steel.
Preferably, the lubricant is graphite and molybdenum disulfide.
Preferably, profile is aligned using gag press straightening mode.
The extruding production of titanium alloy thin wall profile provided in an embodiment of the present invention not only realizes thin-walled small bore type
Extruding preparation of the material on large-tonnage extruder, while die cost, personnel cost, equipment operating cost etc. substantially reduce；With
Traditional handicraft is compared, and this method is without increasing process or specially treated process, and strong operability is, it can be achieved that current all section shapes
The extruding of the titanium alloy profile of shape.By practical application, the profile size precision of this method preparation is high, surface quality is good, appearance
Shape etc. preferably, very well satisfies the extruding production of titanium alloy profile.
Detailed description of the invention
Fig. 1 is the sectional view of titanium alloy profile shown in embodiment one；
Fig. 2 is the sectional view of titanium alloy profile shown in embodiment two.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, the described embodiments are merely a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, those of ordinary skill in the art's obtained all other embodiment without making creative work, all
Belong to the scope of protection of the invention.
Embodiment one
Referring to Fig. 1, embodiment one is the compression moulding using L shape die hole for L-shaped section, and the wall thickness of L-shaped section is
1.6mm, specific preparation method, includes the following steps:
Step 1, TC4 titanium alloy Φ 710mm ingot casting is melted out using vacuum consumable electrode arc furnace, melting 2 times.Ingot casting is carried out
Milling processing is dug, test transformation temperature is 990~1000 DEG C；
Step 2, fast at 2500 tons after being heated in gas furnace after the ingot casting of step 1 being coated antioxidant defense coating
It is forged into the bar stock of 220 × L of Φ mm in forging machine, 2~3 fire are forged at 1200 DEG C, (alpha+beta) two-phase section forges 1~2 fire,
Guarantee that total deformation is greater than 50%；
Step 3, by the bar stock of step 2, the machined optical wand base for obtaining 216 × 350mm of Ф；
Step 4, optical wand base made from step 3 is cleaned using alcohol, is placed in resistance furnace, dried at 250 DEG C
15 minutes, inoxidzable coating processing is carried out after taking-up；
Step 5, bar stock step 4 obtained is heated to 1050~1200 DEG C in induction heater and is heated, heat preservation
30min；
Step 6, extrusion cylinder, extrusion die, dummy block are preheated, 300~500 DEG C of preheating temperature, then utilizes graphite
Smearing lubricated is carried out to compression tool with molybdenum disulfide；
Step 7, the bar stock after step 5 heating is quickly transferred to extrusion cylinder, is transferred to the time less than 1min, extrusion speed 120
~300mm/S；
Step 8, profile step 7 squeezed out, which is placed in vacuum annealing furnace, to be made annealing treatment；Annealing temperature be 700~
It is 760 DEG C, soaking time 1~3h, air-cooled；
Step 9, the profile after step 8 heat treatment is subjected to straightening processing；
Step 10, the profile after step 9 aligning is surface-treated, then first sandblasting carries out pickling, such as Fig. 1 is made
Shown in titanium alloy profile.
In the present embodiment, the extrusion die is bimodulus hole extrusion die, and the die hole structure of the cross section of the extrusion die is L
Shape, the quantity of the L shape die hole are 2 and are symmetrically distributed in the axle center two sides of the extrusion die, the processing essence of the die hole
Degree ± 0.1mm.
The material of the extrusion die uses 3Cr2W8V refractory steel.
The lubricant is graphite and molybdenum disulfide.
Specifically, being aligned using gag press straightening mode to profile.
Embodiment two
Referring to Fig. 2, embodiment two is the compression moulding using L shape die hole for L-shaped section, and the one side wall of L-shaped section
Thickness is 1.6mm, and another side thickness 2.1mm, specific preparation method includes the following steps:
Step 1, TC4 titanium alloy Φ 710mm ingot casting is melted out using vacuum consumable electrode arc furnace, melting 2 times；Ingot casting is carried out
Milling processing is dug, test transformation temperature is 970~980 DEG C；
Step 2, fast at 2500 tons after being heated in gas furnace after the ingot casting of step 1 being coated antioxidant defense coating
It is forged into the bar stock of 220 × L of Φ mm in forging machine, 2~3 fire are forged at 1180 DEG C, (alpha+beta) two-phase section forges 1~2 fire,
Guarantee that total deformation is greater than 50%；
Step 3, by the bar stock of step 2, the machined optical wand base for obtaining 216 × 350mm of Ф；
Step 4, optical wand base made from step 3 is cleaned using alcohol, is placed in resistance furnace, dried at 250 DEG C
15 minutes, inoxidzable coating processing is carried out after taking-up；
Step 5, bar stock step 4 obtained is heated to 1000~1150 DEG C in induction heater and is heated, heat preservation
30min；
Step 6, extrusion cylinder, extrusion die, dummy block are preheated, 300~500 DEG C of preheating temperature, then utilizes graphite
Smearing lubricated is carried out to compression tool with molybdenum disulfide；
Step 7, the bar stock after step 5 heating is quickly transferred to extrusion cylinder, is transferred to the time less than 1min, extrusion speed 120
~300mm/S；
Step 8, profile step 7 squeezed out, which is placed in vacuum annealing furnace, to be made annealing treatment.Annealing temperature be 680~
It is 740 DEG C, soaking time 1~3h, air-cooled；
Step 9, the profile after step 8 heat treatment is subjected to straightening processing；
Step 10, the profile after step 9 aligning is surface-treated, then first sandblasting carries out pickling, such as Fig. 2 is made
Shown in titanium alloy profile.
In the present embodiment, the extrusion die is bimodulus hole extrusion die, and the die hole structure of the cross section of the extrusion die is L
Shape, the quantity of the L shape die hole are 2 and are symmetrically distributed in the axle center two sides of the extrusion die, the processing essence of the die hole
Degree ± 0.1mm.
Embodiment three
Embodiment three is to adopt the compression moulding of T shape die hole for T shape profile, and specific preparation method includes the following steps:
Step 1, TC4 titanium alloy Φ 710mm ingot casting is melted out using vacuum consumable electrode arc furnace, melting 2 times.Ingot casting is carried out
Milling processing is dug, test transformation temperature is 990~1000 DEG C；
Step 2, fast at 2500 tons after being heated in gas furnace after the ingot casting of step 1 being coated antioxidant defense coating
It is forged into the bar stock of 220 × L of Φ mm in forging machine, 2~3 fire are forged at 1200 DEG C, (alpha+beta) two-phase section forges 1~2 fire,
Guarantee that total deformation is greater than 50%；
Step 3, by the bar stock of step 2, the machined optical wand base for obtaining 216 × 350mm of Ф；
Step 4, optical wand base made from step 3 is cleaned using alcohol, is placed in resistance furnace, dried at 250 DEG C
15 minutes, inoxidzable coating processing is carried out after taking-up；
Step 5, bar stock step 4 obtained is heated to 1050~1200 DEG C in induction heater and is heated, heat preservation
30min；
Step 6, extrusion cylinder, extrusion die, dummy block are preheated, 300~500 DEG C of preheating temperature, then utilizes graphite
Smearing lubricated is carried out to compression tool with molybdenum disulfide；
Step 7, the bar stock after step 5 heating is quickly transferred to extrusion cylinder, is transferred to the time less than 1min, extrusion speed 120
~300mm/S；
Step 8, profile step 7 squeezed out, which is placed in vacuum annealing furnace, to be made annealing treatment.Annealing temperature be 700~
It is 760 DEG C, soaking time 1~3h, air-cooled；
Step 9, the profile after step 8 heat treatment is subjected to straightening processing；
Step 10, the profile after step 9 aligning is surface-treated, then first sandblasting carries out pickling.
In the present embodiment, the extrusion die is bimodulus hole extrusion die, and the die hole structure of the cross section of the extrusion die is T
Shape, the quantity of the T shape die hole are 2 and are symmetrically distributed in the axle center two sides of the extrusion die, the processing essence of the die hole
Degree ± 0.1mm.
The extruding production of titanium alloy thin wall profile provided in an embodiment of the present invention not only realizes thin-walled small bore type
Extruding preparation of the material on large-tonnage extruder, while die cost, personnel cost, equipment operating cost etc. substantially reduce；With
Traditional handicraft is compared, and this method is without increasing process or specially treated process, and strong operability is, it can be achieved that current all section shapes
The extruding of the titanium alloy profile of shape.By practical application, the profile size precision of this method preparation is high, surface quality is good, appearance
Shape etc. preferably, very well satisfies the extruding production of titanium alloy profile.
More than, it is only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form, although this
Invention has been disclosed in a preferred embodiment above, and however, it is not intended to limit the invention, any person skilled in the art,
It does not depart within the scope of technical solution of the present invention, when the technology contents using the disclosure above make a little change or are modified to equivalent
The equivalent embodiment of variation, but without departing from the technical solutions of the present invention, according to the technical essence of the invention to the above reality
Any simple modification, equivalent change and modification made by example are applied, all of which are still within the scope of the technical scheme of the invention.
Claims (5)
1. a kind of extruding production of titanium alloy thin wall profile, which comprises the steps of:
Step 1, TC4 titanium alloy Φ 710mm ingot casting is melted out using vacuum consumable electrode arc furnace, melting 2 times；Plane milling is carried out to ingot casting
Processing, test transformation temperature are 970~1000 DEG C；
Step 2, after the ingot casting of step 1 being coated antioxidant defense coating, in 2500 tons of quick forging machines after being heated in gas furnace
On be forged into the bar stock of 220 × L of Φ mm, 2~3 fire, 1~2 fire of (alpha+beta) two-phase section forging are forged at 1180~1200 DEG C
It is secondary, guarantee that total deformation is greater than 50%；
Step 3, by the bar stock of step 2, the machined optical wand base for obtaining 216 × 350mm of Ф；
Step 4, optical wand base made from step 3 is cleaned using alcohol, is placed in resistance furnace, 15 points are dried at 250 DEG C
Clock carries out inoxidzable coating processing after taking-up；
Step 5, bar stock step 4 obtained is heated to 1000~1200 DEG C in induction heater and is heated, heat preservation
30min；
Step 6, extrusion cylinder, extrusion die, dummy block are preheated, the extrusion die is bimodulus hole extrusion die, preheating temperature 300
~500 DEG C, smearing lubricated then is carried out to compression tool using lubricant；
Step 7, the bar stock after step 5 heating is quickly transferred to extrusion cylinder, is transferred to the time less than 1min, extrusion speed 120~
300mm/S；
Step 8, profile step 7 squeezed out, which is placed in vacuum annealing furnace, to be made annealing treatment；Annealing temperature is 680~760 DEG C,
Soaking time 1~3h, it is air-cooled；
Step 9, the profile after step 8 heat treatment is subjected to straightening processing；
Step 10, the profile after step 9 aligning is surface-treated, then first sandblasting carries out pickling, titanium alloy type is made
Material.
2. erosion resistant titanium alloy according to claim 1, which is characterized in that the die hole structure of the cross section of the extrusion die
For L shape or T shape, the quantity of the die hole is 2 and is symmetrically distributed in the axle center two sides of the extrusion die, the die hole plus
Work precision ± 0.1mm.
3. erosion resistant titanium alloy according to claim 1, which is characterized in that the material of the extrusion die uses 3Cr2W8V
Refractory steel.
4. erosion resistant titanium alloy according to claim 1, which is characterized in that the lubricant is graphite and molybdenum disulfide.
5. erosion resistant titanium alloy according to claim 1, which is characterized in that rectified using gag press straightening mode to profile
Directly.
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| CN201810833924.8A CN109013734B (en) | 2018-07-26 | 2018-07-26 | Extrusion preparation method of titanium alloy thin-wall section |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111001741A (en) * | 2019-12-01 | 2020-04-14 | 重庆金世利航空材料有限公司 | TA15 titanium alloy T-shaped material extrusion preparation method |
| CN111783234A (en) * | 2019-03-18 | 2020-10-16 | 西北工业大学 | Method and system for establishing extrusion process window of as-cast titanium alloy |
| CN111809080A (en) * | 2020-06-23 | 2020-10-23 | 中国科学院金属研究所 | Preparation method of TC2 alloy thin-wall extruded section |
| CN113369324A (en) * | 2021-07-30 | 2021-09-10 | 索罗曼(常州)合金新材料有限公司 | Continuous extrusion method for titanium alloy |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111783234A (en) * | 2019-03-18 | 2020-10-16 | 西北工业大学 | Method and system for establishing extrusion process window of as-cast titanium alloy |
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| CN111001741A (en) * | 2019-12-01 | 2020-04-14 | 重庆金世利航空材料有限公司 | TA15 titanium alloy T-shaped material extrusion preparation method |
| CN111809080A (en) * | 2020-06-23 | 2020-10-23 | 中国科学院金属研究所 | Preparation method of TC2 alloy thin-wall extruded section |
| CN111809080B (en) * | 2020-06-23 | 2022-07-26 | 中国科学院金属研究所 | Preparation method of TC2 alloy thin-wall extruded section |
| CN113369324A (en) * | 2021-07-30 | 2021-09-10 | 索罗曼(常州)合金新材料有限公司 | Continuous extrusion method for titanium alloy |
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