CN107447129A - A kind of heat resistant and wear resistant titanium alloy sheet and preparation method thereof - Google Patents
A kind of heat resistant and wear resistant titanium alloy sheet and preparation method thereof Download PDFInfo
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- CN107447129A CN107447129A CN201710664920.7A CN201710664920A CN107447129A CN 107447129 A CN107447129 A CN 107447129A CN 201710664920 A CN201710664920 A CN 201710664920A CN 107447129 A CN107447129 A CN 107447129A
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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
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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
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/02—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/06—Alloys containing less than 50% by weight of each constituent containing zinc
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
- C22F1/18—High-melting or refractory metals or alloys based thereon
- C22F1/183—High-melting or refractory metals or alloys based thereon of titanium or alloys based thereon
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Abstract
The invention discloses a kind of heat resistant and wear resistant titanium alloy sheet and preparation method thereof, it is made up of the raw material of following weight/mass percentage composition：Aluminium 5% 15%, iron 15% 20%, cobalt 1% 5%, silicon 3% 8%, manganese 5% 10%, carbon 1% 4%, zinc 0.5% 2.5%, magnesium 3% 8%, chromium 2% 5%, surplus is titanium and inevitable trace element, preparation technology of the present invention is simple, obtained titanium alloy sheet has excellent high temperature resistant, wear-resisting and compressive property, sheet material inherent quality is good, precision is high, service life length.
Description
Technical field
The present invention relates to titanium alloy sheet manufacture technology field, specially a kind of heat resistant and wear resistant titanium alloy sheet and its making side
Method.
Background technology
The heat endurance of current high-temperature titanium alloy plate is often not ideal enough, shows as titanium alloy sheet and is used in hot environment
During creep-resistant property substantially reduce, main reason is that high-temperature titanium alloy plate is typically using made of high-temperature titanium alloy, but
It is high-temperature titanium alloy due to its high-alloying, brittlement phase separates out probability increase after working long hours, and causes tissue unstable.Simultaneously
The processing technology of high-temperature titanium alloy plate is complicated, high processing costs.
The content of the invention
It is an object of the invention to provide a kind of heat resistant and wear resistant titanium alloy sheet and preparation method thereof, to solve above-mentioned background
The problem of being proposed in technology.
To achieve the above object, the present invention provides following technical scheme：A kind of heat resistant and wear resistant titanium alloy sheet, by following
The raw material of weight/mass percentage composition is made：Aluminium 5%-15%, iron 15%-20%, cobalt 1%-5%, silicon 3%-8%, manganese 5%-10%,
Carbon 1%-4%, zinc 0.5%-2.5%, magnesium 3%-8%, chromium 2%-5%, surplus are titanium and inevitable trace element.
Preferably, the inevitably trace element is niobium, rhenium, yttrium, cerium, and its weight percentage is 0.02%-
0.15%.
Preferably, its preparation method comprises the following steps：
A, vacuum induction melting in antivacuum induction melting furnace is added after all raw materials being ready into mixing, smelting temperature is
1300 DEG C -1500 DEG C, refining time 25min-35min；Ingot casting is into titanium alloy ingot after melting；
B, titanium alloy slab is formed after the obtained titanium alloy ingots of step A being forged, rolled, then is made annealing treatment；
C, titanium alloy slab after being annealed in step B is cleaned, that is, titanium alloy sheet is made.
Preferably, the forging method in the step B comprises the following steps：
A, titanium alloy ingot feeding forge furnace leading portion is preheated, preheating temperature is 500 DEG C -700 DEG C, and preheating time is
10min-20min；
B, the titanium alloy ingot after preheating is pushed into forge furnace stage casing afterwards and carries out high-temperature heating forging, heating-up temperature 1200
DEG C -1400 DEG C, time 50min-80min；
C, titanium alloy ingot is pushed into forge furnace back segment afterwards and carries out slow cooling, back segment temperature is 400 DEG C -600 DEG C；Treat titanium
After alloy pig is down to 500 DEG C, forge furnace is closed, until titanium alloy ingot is cooled to room temperature.
Preferably, rolling mill practice comprises the following steps in the step B：
A, the titanium alloy ingot after forging is put into holding furnace and carries out heating preheating, heating-up temperature is 150 DEG C -250 DEG C, in advance
The hot time is 10min-30min；
B, roll in milling train is heated, heating-up temperature is 200 DEG C -300 DEG C；
C, titanium alloy ingot is sent into milling train afterwards and rolled, and roll is incubated in the operation of rolling, rolled
After obtain titanium alloy slab.
Preferably, method for annealing comprises the following steps in the step B：
A, titanium alloy slab is sent into annealing furnace, and is evacuated to vacuum 10Pa；
B, annealing furnace is warming up to 400 DEG C afterwards, then annealing furnace carried out with 2 DEG C/min-4 DEG C/min speed slow
Heating, until constant temperature 2h after being warming up to 600 DEG C, constantly protected in thermostatic process by nitrogen, the nitrogen flow being passed through is
300-500ml/min；After constant temperature terminates, then cooled with 5 DEG C/min-10 DEG C/min speed, until 100 DEG C are cooled to,
Then take out titanium alloy slab.
Preferably, the step C cleaning ways are：Alkali cleaning is first carried out using sodium hydroxide；Acid is carried out using hydrochloric acid afterwards
Wash, finally fully rinsed with clear water.
Compared with prior art, the beneficial effects of the invention are as follows：
(1) preparation technology of the present invention is simple, and obtained titanium alloy sheet has excellent high temperature resistant, wear-resisting and compressive property,
Sheet material inherent quality is good, precision is high, service life length.
(2) present invention using forging method in using preheating, heating, by the way of slow cooling can greatly improve life
Efficiency is produced, while also improves the surface quality of titanium alloy ingot.
(3) in the present invention, the rolling mill practice of use can prevent that the titanium alloy slab after rolling is cracked, improve and roll
Quality processed.
(4) in the present invention, the method for annealing annealing effect of use is good, and titanium alloy slab surface is not in oxidative phenomena,
And the titanium alloy slab after annealing can further improve comprehensive mechanical performance.
Embodiment
The technical scheme in the embodiment of the present invention is clearly and completely described below, it is clear that described embodiment
Only part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the common skill in this area
The every other embodiment that art personnel are obtained under the premise of creative work is not made, belong to the model that the present invention protects
Enclose.
Embodiment one：
The present invention provides following technical scheme：A kind of heat resistant and wear resistant titanium alloy sheet, by following weight/mass percentage composition
Raw material is made：Aluminium 5%, iron 15%, cobalt 1%, silicon 3%, manganese 5%, carbon 1%, zinc 0.5%, magnesium 3%, chromium 2%, surplus be titanium and
Inevitably trace element；Wherein, inevitably trace element is niobium, rhenium, yttrium, cerium, and its weight percentage is
0.02%.
The preparation method of the present embodiment comprises the following steps：
A, vacuum induction melting in antivacuum induction melting furnace is added after all raw materials being ready into mixing, smelting temperature is
1300 DEG C, refining time 25min；Ingot casting is into titanium alloy ingot after melting；
B, titanium alloy slab is formed after the obtained titanium alloy ingots of step A being forged, rolled, then is made annealing treatment；
C, titanium alloy slab after being annealed in step B is cleaned, that is, titanium alloy sheet is made.
In the present embodiment, the forging method in step B comprises the following steps：
A, titanium alloy ingot feeding forge furnace leading portion is preheated, preheating temperature is 500 DEG C, preheating time 10min；
B, the titanium alloy ingot after preheating is pushed into forge furnace stage casing afterwards and carries out high-temperature heating forging, heating-up temperature 1200
DEG C, time 50min；
C, titanium alloy ingot is pushed into forge furnace back segment afterwards and carries out slow cooling, back segment temperature is 400 DEG C；Treat titanium alloy ingot
After being down to 500 DEG C, forge furnace is closed, until titanium alloy ingot is cooled to room temperature.
In the present embodiment, rolling mill practice comprises the following steps in step B：
A, the titanium alloy ingot after forging is put into holding furnace and carries out heating preheating, heating-up temperature is 150 DEG C, preheating time
For 10min；
B, roll in milling train is heated, heating-up temperature is 200 DEG C；
C, titanium alloy ingot is sent into milling train afterwards and rolled, and roll is incubated in the operation of rolling, rolled
After obtain titanium alloy slab.
In the present embodiment, method for annealing comprises the following steps in step B：
A, titanium alloy slab is sent into annealing furnace, and is evacuated to vacuum 10Pa；
B, annealing furnace is warming up to 400 DEG C afterwards, then annealing furnace slowly heated up with 2 DEG C/min speed, directly
The constant temperature 2h to after being warming up to 600 DEG C, constantly protected by nitrogen in thermostatic process, the nitrogen flow being passed through is 300ml/
min；After constant temperature terminates, then cooled with 5 DEG C/min speed, until being cooled to 100 DEG C, then take out titanium alloy slab.
In the present embodiment, step C cleaning ways are：Alkali cleaning is first carried out using sodium hydroxide；Acid is carried out using hydrochloric acid afterwards
Wash, finally fully rinsed with clear water.
Embodiment two：
The present invention provides following technical scheme：A kind of heat resistant and wear resistant titanium alloy sheet, by following weight/mass percentage composition
Raw material is made：Aluminium 15%, iron 20%, cobalt 5%, silicon 8%, manganese 10%, carbon 4%, zinc 2.5%, magnesium 8%, chromium 5%, surplus are titanium
It is and inevitably micro-；Wherein, inevitably trace element is niobium, rhenium, yttrium, cerium, and its weight percentage is
0.15%.
The preparation method of the present embodiment comprises the following steps：
A, vacuum induction melting in antivacuum induction melting furnace is added after all raw materials being ready into mixing, smelting temperature is
1500 DEG C, refining time 35min；Ingot casting is into titanium alloy ingot after melting；
B, titanium alloy slab is formed after the obtained titanium alloy ingots of step A being forged, rolled, then is made annealing treatment；
C, titanium alloy slab after being annealed in step B is cleaned, that is, titanium alloy sheet is made.
In the present embodiment, the forging method in step B comprises the following steps：
A, titanium alloy ingot feeding forge furnace leading portion is preheated, preheating temperature is 700 DEG C, preheating time 20min；
B, the titanium alloy ingot after preheating is pushed into forge furnace stage casing afterwards and carries out high-temperature heating forging, heating-up temperature 1400
DEG C, time 80min；
C, titanium alloy ingot is pushed into forge furnace back segment afterwards and carries out slow cooling, back segment temperature is 600 DEG C；Treat titanium alloy ingot
After being down to 500 DEG C, forge furnace is closed, until titanium alloy ingot is cooled to room temperature.
In the present embodiment, rolling mill practice comprises the following steps in step B：
A, the titanium alloy ingot after forging is put into holding furnace and carries out heating preheating, heating-up temperature is 250 DEG C, preheating time
For 30min；
B, roll in milling train is heated, heating-up temperature is 300 DEG C；
C, titanium alloy ingot is sent into milling train afterwards and rolled, and roll is incubated in the operation of rolling, rolled
After obtain titanium alloy slab.
In the present embodiment, method for annealing comprises the following steps in step B：
A, titanium alloy slab is sent into annealing furnace, and is evacuated to vacuum 10Pa；
B, annealing furnace is warming up to 400 DEG C afterwards, then annealing furnace slowly heated up with 4 DEG C/min speed, directly
The constant temperature 2h to after being warming up to 600 DEG C, constantly protected by nitrogen in thermostatic process, the nitrogen flow being passed through is 500ml/
min；After constant temperature terminates, then cooled with 10 DEG C/min speed, until being cooled to 100 DEG C, then take out titanium alloy slab.
In the present embodiment, step C cleaning ways are：Alkali cleaning is first carried out using sodium hydroxide；Acid is carried out using hydrochloric acid afterwards
Wash, finally fully rinsed with clear water.
Embodiment three：
The present invention provides following technical scheme：A kind of heat resistant and wear resistant titanium alloy sheet, by following weight/mass percentage composition
Raw material is made：Aluminium 7%, iron 16%, cobalt 2%, silicon 4%, manganese 5%-10%, carbon 2%, zinc 1%, magnesium 4%, chromium 3%, surplus are titanium
It is and inevitably micro-；Wherein, inevitably trace element is niobium, rhenium, yttrium, cerium, and its weight percentage is
0.04%.
The preparation method of the present embodiment comprises the following steps：
A, vacuum induction melting in antivacuum induction melting furnace is added after all raw materials being ready into mixing, smelting temperature is
1350 DEG C, refining time 28min；Ingot casting is into titanium alloy ingot after melting；
B, titanium alloy slab is formed after the obtained titanium alloy ingots of step A being forged, rolled, then is made annealing treatment；
C, titanium alloy slab after being annealed in step B is cleaned, that is, titanium alloy sheet is made.
In the present embodiment, the forging method in step B comprises the following steps：
A, titanium alloy ingot feeding forge furnace leading portion is preheated, preheating temperature is 550 DEG C, preheating time 12min；
B, the titanium alloy ingot after preheating is pushed into forge furnace stage casing afterwards and carries out high-temperature heating forging, heating-up temperature 1250
DEG C, time 55min；
C, titanium alloy ingot is pushed into forge furnace back segment afterwards and carries out slow cooling, back segment temperature is 450 DEG C；Treat titanium alloy ingot
After being down to 500 DEG C, forge furnace is closed, until titanium alloy ingot is cooled to room temperature.
In the present embodiment, rolling mill practice comprises the following steps in step B：
A, the titanium alloy ingot after forging is put into holding furnace and carries out heating preheating, heating-up temperature is 170 DEG C, preheating time
For 14min；
B, roll in milling train is heated, heating-up temperature is 220 DEG C；
C, titanium alloy ingot is sent into milling train afterwards and rolled, and roll is incubated in the operation of rolling, rolled
After obtain titanium alloy slab.
In the present embodiment, method for annealing comprises the following steps in step B：
A, titanium alloy slab is sent into annealing furnace, and is evacuated to vacuum 10Pa；
B, annealing furnace is warming up to 400 DEG C afterwards, then annealing furnace slowly heated up with 2.5 DEG C/min speed,
Until constant temperature 2h after being warming up to 600 DEG C, constantly protected in thermostatic process by nitrogen, the nitrogen flow being passed through is 320ml/
min；After constant temperature terminates, then cooled with 6 DEG C/min speed, until being cooled to 100 DEG C, then take out titanium alloy slab.
In the present embodiment, step C cleaning ways are：Alkali cleaning is first carried out using sodium hydroxide；Acid is carried out using hydrochloric acid afterwards
Wash, finally fully rinsed with clear water.
Example IV：
The present invention provides following technical scheme：A kind of heat resistant and wear resistant titanium alloy sheet, by following weight/mass percentage composition
Raw material is made：Aluminium 14%, iron 19%, cobalt 4%, silicon 7%, manganese 9%, carbon 1%-4%, zinc 2%, magnesium 7%, chromium 4%, surplus are titanium
It is and inevitably micro-；Wherein, inevitably trace element is niobium, rhenium, yttrium, cerium, and its weight percentage is
0.14%.
The preparation method of the present embodiment comprises the following steps：
A, vacuum induction melting in antivacuum induction melting furnace is added after all raw materials being ready into mixing, smelting temperature is
1450 DEG C, refining time 32min；Ingot casting is into titanium alloy ingot after melting；
B, titanium alloy slab is formed after the obtained titanium alloy ingots of step A being forged, rolled, then is made annealing treatment；
C, titanium alloy slab after being annealed in step B is cleaned, that is, titanium alloy sheet is made.
In the present embodiment, the forging method in step B comprises the following steps：
A, titanium alloy ingot feeding forge furnace leading portion is preheated, preheating temperature is 660 DEG C, preheating time 18min；
B, the titanium alloy ingot after preheating is pushed into forge furnace stage casing afterwards and carries out high-temperature heating forging, heating-up temperature 1380
DEG C, time 70min；
C, titanium alloy ingot is pushed into forge furnace back segment afterwards and carries out slow cooling, back segment temperature is 550 DEG C；Treat titanium alloy ingot
After being down to 500 DEG C, forge furnace is closed, until titanium alloy ingot is cooled to room temperature.
In the present embodiment, rolling mill practice comprises the following steps in step B：
A, the titanium alloy ingot after forging is put into holding furnace and carries out heating preheating, heating-up temperature is 220 DEG C, preheating time
For 25min；
B, roll in milling train is heated, heating-up temperature is 280 DEG C；
C, titanium alloy ingot is sent into milling train afterwards and rolled, and roll is incubated in the operation of rolling, rolled
After obtain titanium alloy slab.
In the present embodiment, method for annealing comprises the following steps in step B：
A, titanium alloy slab is sent into annealing furnace, and is evacuated to vacuum 10Pa；
B, annealing furnace is warming up to 400 DEG C afterwards, then annealing furnace slowly heated up with 3.5 DEG C/min speed,
Until constant temperature 2h after being warming up to 600 DEG C, constantly protected in thermostatic process by nitrogen, the nitrogen flow being passed through is 450ml/
min；After constant temperature terminates, then cooled with 9 DEG C/min speed, until being cooled to 100 DEG C, then take out titanium alloy slab.
In the present embodiment, step C cleaning ways are：Alkali cleaning is first carried out using sodium hydroxide；Acid is carried out using hydrochloric acid afterwards
Wash, finally fully rinsed with clear water.
Embodiment five：
The present invention provides following technical scheme：A kind of heat resistant and wear resistant titanium alloy sheet, by following weight/mass percentage composition
Raw material is made：Aluminium 7%, iron 18%, cobalt 2%, silicon 7%, manganese 5%-10%, carbon 2%, zinc 2%, magnesium 4%, chromium 2%, surplus are titanium
It is and inevitably micro-；Wherein, inevitably trace element is niobium, rhenium, yttrium, cerium, and its weight percentage is
0.11%.
The preparation method of the present embodiment comprises the following steps：
A, vacuum induction melting in antivacuum induction melting furnace is added after all raw materials being ready into mixing, smelting temperature is
1380 DEG C, refining time 31min；Ingot casting is into titanium alloy ingot after melting；
B, titanium alloy slab is formed after the obtained titanium alloy ingots of step A being forged, rolled, then is made annealing treatment；
C, titanium alloy slab after being annealed in step B is cleaned, that is, titanium alloy sheet is made.
In the present embodiment, the forging method in step B comprises the following steps：
A, titanium alloy ingot feeding forge furnace leading portion is preheated, preheating temperature is 680 DEG C, preheating time 14min；
B, the titanium alloy ingot after preheating is pushed into forge furnace stage casing afterwards and carries out high-temperature heating forging, heating-up temperature 1350
DEG C, time 65min；
C, titanium alloy ingot is pushed into forge furnace back segment afterwards and carries out slow cooling, back segment temperature is 520 DEG C；Treat titanium alloy ingot
After being down to 500 DEG C, forge furnace is closed, until titanium alloy ingot is cooled to room temperature.
In the present embodiment, rolling mill practice comprises the following steps in step B：
A, the titanium alloy ingot after forging is put into holding furnace and carries out heating preheating, heating-up temperature is 190 DEG C, preheating time
For 22min；
B, roll in milling train is heated, heating-up temperature is 240 DEG C；
C, titanium alloy ingot is sent into milling train afterwards and rolled, and roll is incubated in the operation of rolling, rolled
After obtain titanium alloy slab.
In the present embodiment, method for annealing comprises the following steps in step B：
A, titanium alloy slab is sent into annealing furnace, and is evacuated to vacuum 10Pa；
B, annealing furnace is warming up to 400 DEG C afterwards, then annealing furnace slowly heated up with 4 DEG C/min speed, directly
The constant temperature 2h to after being warming up to 600 DEG C, constantly protected by nitrogen in thermostatic process, the nitrogen flow being passed through is 300ml/
min；After constant temperature terminates, then cooled with 5 DEG C/min speed, until being cooled to 100 DEG C, then take out titanium alloy slab.
In the present embodiment, step C cleaning ways are：Alkali cleaning is first carried out using sodium hydroxide；Acid is carried out using hydrochloric acid afterwards
Wash, finally fully rinsed with clear water.
Embodiment six：
The present invention provides following technical scheme：A kind of heat resistant and wear resistant titanium alloy sheet, by following weight/mass percentage composition
Raw material is made：Aluminium 10%, iron 17%, cobalt 3%, silicon 5%, manganese 7%, carbon 2%, zinc 1.5%, magnesium 6%, chromium 4%, surplus be titanium and
Inevitably trace element；Wherein, inevitably trace element is niobium, rhenium, yttrium, cerium, and its weight percentage is
0.1%.
The preparation method of the present embodiment comprises the following steps：
A, vacuum induction melting in antivacuum induction melting furnace is added after all raw materials being ready into mixing, smelting temperature is
1400 DEG C, refining time 30min；Ingot casting is into titanium alloy ingot after melting；
B, titanium alloy slab is formed after the obtained titanium alloy ingots of step A being forged, rolled, then is made annealing treatment；
C, titanium alloy slab after being annealed in step B is cleaned, that is, titanium alloy sheet is made.
In the present embodiment, the forging method in step B comprises the following steps：
A, titanium alloy ingot feeding forge furnace leading portion is preheated, preheating temperature is 600 DEG C, preheating time 15min；
B, the titanium alloy ingot after preheating is pushed into forge furnace stage casing afterwards and carries out high-temperature heating forging, heating-up temperature 1300
DEG C, time 65min；
C, titanium alloy ingot is pushed into forge furnace back segment afterwards and carries out slow cooling, back segment temperature is 500 DEG C；Treat titanium alloy ingot
After being down to 500 DEG C, forge furnace is closed, until titanium alloy ingot is cooled to room temperature.
In the present embodiment, rolling mill practice comprises the following steps in step B：
A, the titanium alloy ingot after forging is put into holding furnace and carries out heating preheating, heating-up temperature is 200 DEG C, preheating time
For 20min；
B, roll in milling train is heated, heating-up temperature is 250 DEG C；
C, titanium alloy ingot is sent into milling train afterwards and rolled, and roll is incubated in the operation of rolling, rolled
After obtain titanium alloy slab.
In the present embodiment, method for annealing comprises the following steps in step B：
A, titanium alloy slab is sent into annealing furnace, and is evacuated to vacuum 10Pa；
B, annealing furnace is warming up to 400 DEG C afterwards, then annealing furnace slowly heated up with 3 DEG C/min speed, directly
The constant temperature 2h to after being warming up to 600 DEG C, constantly protected by nitrogen in thermostatic process, the nitrogen flow being passed through is 400ml/
min；After constant temperature terminates, then cooled with 8 DEG C/min speed, until being cooled to 100 DEG C, then take out titanium alloy slab.
In the present embodiment, step C cleaning ways are：Alkali cleaning is first carried out using sodium hydroxide；Acid is carried out using hydrochloric acid afterwards
Wash, finally fully rinsed with clear water.
Preparation technology of the present invention is simple, and obtained titanium alloy sheet has excellent high temperature resistant, wear-resisting and compressive property, plate
Material inherent quality is good, precision is high, service life length；Using preheating, heating, slow cooling in the forging method that the present invention uses
Mode can greatly improve production efficiency, while also improve the surface quality of titanium alloy ingot；In the present invention, the rolling of use
Technique can prevent that the titanium alloy slab after rolling is cracked, improve rolling quality；In the present invention, the method for annealing of use
Annealing effect is good, and titanium alloy slab surface is not in oxidative phenomena, and the titanium alloy slab after annealing can be improved further
Comprehensive mechanical performance.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
- A kind of 1. heat resistant and wear resistant titanium alloy sheet, it is characterised in that：It is made up of the raw material of following weight/mass percentage composition：Aluminium 5%- 15%th, iron 15%-20%, cobalt 1%-5%, silicon 3%-8%, manganese 5%-10%, carbon 1%-4%, zinc 0.5%-2.5%, magnesium 3%-8%, chromium 2%-5%, surplus are titanium and inevitable trace element.
- A kind of 2. heat resistant and wear resistant titanium alloy sheet according to claim 1, it is characterised in that：It is described inevitably micro Element is niobium, rhenium, yttrium, cerium, and its weight percentage is 0.02%-0.15%.
- 3. realize a kind of preparation method of heat resistant and wear resistant titanium alloy sheet described in claim 1, it is characterised in that：Its making side Method comprises the following steps：A, vacuum induction melting in antivacuum induction melting furnace, smelting temperature 1300 are added after all raw materials being ready into mixing DEG C -1500 DEG C, refining time 25min-35min；Ingot casting is into titanium alloy ingot after melting；B, titanium alloy slab is formed after the obtained titanium alloy ingots of step A being forged, rolled, then is made annealing treatment；C, titanium alloy slab after being annealed in step B is cleaned, that is, titanium alloy sheet is made.
- A kind of 4. preparation method of heat resistant and wear resistant titanium alloy sheet according to claim 3, it is characterised in that：The step Forging method in B comprises the following steps：A, titanium alloy ingot feeding forge furnace leading portion is preheated, preheating temperature is 500 DEG C -700 DEG C, preheating time 10min- 20min；B, the titanium alloy ingot after preheating being pushed into forge furnace stage casing afterwards and carries out high-temperature heating forging, heating-up temperature is 1200 DEG C- 1400 DEG C, time 50min-80min；C, titanium alloy ingot is pushed into forge furnace back segment afterwards and carries out slow cooling, back segment temperature is 400 DEG C -600 DEG C；Treat titanium alloy After ingot is down to 500 DEG C, forge furnace is closed, until titanium alloy ingot is cooled to room temperature.
- A kind of 5. preparation method of heat resistant and wear resistant titanium alloy sheet according to claim 3, it is characterised in that：The step Rolling mill practice comprises the following steps in B：A, the titanium alloy ingot after forging is put into holding furnace and carries out heating preheating, heating-up temperature is 150 DEG C -250 DEG C, during preheating Between be 10min-30min；B, roll in milling train is heated, heating-up temperature is 200 DEG C -300 DEG C；C, titanium alloy ingot is sent into milling train afterwards and rolled, and roll is incubated in the operation of rolling, after rolling To titanium alloy slab.
- A kind of 6. preparation method of heat resistant and wear resistant titanium alloy sheet according to claim 3, it is characterised in that：The step Method for annealing comprises the following steps in B：A, titanium alloy slab is sent into annealing furnace, and is evacuated to vacuum 10Pa；B, annealing furnace is warming up to 400 DEG C afterwards, then annealing furnace slowly risen with 2 DEG C/min-4 DEG C/min speed Temperature, until constant temperature 2h after being warming up to 600 DEG C, constantly protected in thermostatic process by nitrogen, the nitrogen flow being passed through is 300-500ml/min；After constant temperature terminates, then cooled with 5 DEG C/min-10 DEG C/min speed, until 100 DEG C are cooled to, Then take out titanium alloy slab.
- A kind of 7. preparation method of heat resistant and wear resistant titanium alloy sheet according to claim 3, it is characterised in that：The step C cleaning ways are：Alkali cleaning is first carried out using sodium hydroxide；Pickling is carried out using hydrochloric acid afterwards, finally fully rushed with clear water Wash.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710664920.7A CN107447129A (en) | 2017-08-07 | 2017-08-07 | A kind of heat resistant and wear resistant titanium alloy sheet and preparation method thereof |
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| CN201710664920.7A CN107447129A (en) | 2017-08-07 | 2017-08-07 | A kind of heat resistant and wear resistant titanium alloy sheet and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109097626A (en) * | 2018-10-08 | 2018-12-28 | 广州宇智科技有限公司 | A kind of metastable β Titanium-alloy with high damping characteristic and aging stability |
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Application publication date: 20171208 |