CN104805331B - A kind of engineering machinery U-shaped material of the wear-resisting extruded zinc alloy of high-strength and high ductility and preparation method thereof - Google Patents
A kind of engineering machinery U-shaped material of the wear-resisting extruded zinc alloy of high-strength and high ductility and preparation method thereof Download PDFInfo
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Abstract
The present invention relates to a kind of engineering machinery U-shaped material of the wear-resisting extruded zinc alloy of high-strength and high ductility and preparation method thereof, chooses simple metal or intermediate alloy according to Ingredient percent, heat in crucible electrical resistance furnace and melt and pour into ingot casting；Ingot casting is carried out Homogenization Treatments in 280 DEG C～360 DEG C；Ingot casting after by Homogenization Treatments is put in the recipient of extruder, extrusion molding at 260 DEG C～340 DEG C；U-shaped material after by extruding intercepts required length, is put into heating and then water quenching in chamber type electric resistance furnace.The present invention has been obtained the U-shaped material of the wear-resisting extruded zinc alloy of high-strength and high ductility by alloy compositions optimization and the combination of PROCESS FOR TREATMENT.
Description
Technical field
The present invention relates to a kind of extruded zinc alloy section bar and preparation method, particularly relate to a kind of engineering machinery high-strength and high ductility
The U-shaped material of wear-resisting extruded zinc alloy and preparation method, category nonferrous metal new material manufacture field.
Background technology
At present, the U-shaped guide groove (or claiming guide groove, wearing plate) of domestic project machinery, mainly adopts Cu alloy material, such as aluminium
Bronze, tin bronze etc., using casting method single-piece production, machined rear use.Therefore, the cost of raw material is high, produce effect
Rate is low.
Compared with Cu alloy material, using high aluminium zinc alloy material manufacture, the cost of raw material is low, material source is abundant, melts
Change less energy consumption.But produced using casting method, the plasticity and toughness of alloy are low (elongation 1～3%).
Content of the invention
It is an object of the invention to, there is provided a kind of engineering machinery U-shaped material of the wear-resisting extruded zinc alloy of high-strength and high ductility and its system
Preparation Method.
For achieving the above object, the present invention takes following technical proposals：
A kind of preparation method of engineering machinery with the U-shaped material of the wear-resisting extruded zinc alloy of high-strength and high ductility is as follows including step：
(1) according to following ingredients mass percent, simple metal or intermediate alloy is chosen, in crucible electrical resistance furnace, heats fusing
And pour into ingot casting：25.0～45.0%Al, 2.0～5.0%Cu, 0.015～0.04%Mg, 0.04～0.10%Ti, 0.008
～0.02%B, 0.004～0.01%C, balance of zinc and inevitable impurity element, impurity content control range
For：Fe≤0.1%, Pb≤0.004%, Sn≤0.002%, Cd≤0.003%；
(2) ingot casting is carried out Homogenization Treatments, 3～12 hours Homogenization Treatments time in 280 DEG C～360 DEG C；
(3) profile extrusion die is preheating to 260 DEG C～320 DEG C, and on extruder；
(4) by Homogenization Treatments after ingot casting be put in the recipient of extruder, extrusion molding at 260 DEG C～340 DEG C；
(5) extrudate is intercepted required length, is put in chamber type electric resistance furnace and is heated to 290 DEG C～360 DEG C, be incubated
1～8 hour, then it is put into rapidly in 0 DEG C～35 DEG C of water, i.e. the laggard water-filling of solution treatment is quenched；
(6) after solution treatment water quenching, room temperature is placed, and natrual ageing obtains finished product in more than two weeks.
The concrete operations of step (1) are preferred：Electrolytic aluminium, cathode copper, zinc ingot metal are added first in electrical crucible, is heated up molten
Change, fusing 700 DEG C～750 DEG C of temperature of control, when aluminium, copper content are high, fusing control temperature is accordingly improved.Treat all fusings
Afterwards, slagging-off degassing processing is carried out with refining agent, skim after standing.Then, the Mg-10% of 200～300 DEG C of preheating temperature is initially charged
Al intermediate alloys, add the Al-5%Ti 1%B-0.5%C intermediate alloys of 200～300 DEG C of preheating temperature, or are simultaneously introduced
The Mg-10%Al intermediate alloys of preheating and Al-5%Ti 1%B-0.5%C intermediate alloys, after intermediate alloy all melts, will
Molten metal stirs, and stands 10 to 15 minutes, pours into circular ingot at 620～690 DEG C.After ingot casting cooling, through turning plus
After work removes superficial oxidation skin, standby extruding is used.
Ingot homogenization temperature described in step (2) is preferably 300～340 DEG C, homogenization time 3～5 hours；
Profile extrusion die described in step (3) be flat-die, mold preheating temperature be preferably 280～300 DEG C；
Extrusion temperature described in step (4) is preferably 280～320 DEG C；
Section bar heat treatment solid solution temperature described in step (5) is preferably 300～340 DEG C, is incubated 2～4 hours, then
Rapid water quenching, 0～35 DEG C of water temperature.
After section bar heat treatment described in step (6), room temperature is placed, and natrual ageing obtains finished product in more than two weeks.
The effect in the alloy of each constituent element in alloy of the present invention is as follows：Aluminium Main Function in the alloy is refining alloy
Tissue, put forward heavy alloyed intensity, hardness, plasticity and wearability.In extruded zinc alloy of the present invention, with the increasing of aluminium content
Plus, under squeezed state, the intensity of alloy, hardness, plasticity and wearability are improved.In the alloy, add copper carry heavy alloyed intensity,
Hardness and wearability.Copper part is solid-solution in rich aluminium α phases and zinc-rich η phase, and remaining copper forms CuZn with zinc4Intermetallic compound
Phase, when copper content is 1.5%, just forms CuZn under as-cast condition4Intermetallic compound phase, with the increase of copper content,
CuZn4Intermetallic compound phase quantity increases.In the as-cast condition, CuZn4Mutually, strip block in larger point is distributed in crystalline substance
In boundary or in dendrite gap.After through extruding, CuZn4Intermetallic compound is uniformly distributed in tiny point-like.But, work as copper content
During more than 5%, due to forming excessive CuZn in tissue4Intermetallic compound phase, reduces modeling of the alloy under condition of heat treatment
Toughness.Magnesium is important micro alloying element, and the performance impact to alloy is notable, particularly under condition of heat treatment, adds micro-
The magnesium of amount, it is possible to obtain the reinforcing effect of highly significant.Micro magnesium is mainly solid-solution in the η phases of rich aluminium α phases, zinc-rich, is risen
Solution strengthening effect.But when content of magnesium is more than 0.05%, under condition of heat treatment, magnesium significantly reduces the plasticity and toughness of alloy.Ti、
B, C are mainly used for the nascent rich aluminium α phases of refining alloy, to obtain fine microstructures, uniform ingot structure.Add in alloy
After Ti, B, C, tiny TiAl is formed in aluminium alloy3The particles such as phase, TiB phases TiC, these fine particles are used as nascent rich aluminium α
The nucleus of phase, promotes the nascent richness aluminium α phases of matrix to refine, forms equiaxed grain structure, be conducive to the performance for improving extruded alloy.
Ti, B, C are added in the form of Al-5%Ti 1%B-0.5%C intermediate alloys, and Mg is added in the form of Mg-10%Al intermediate alloys
Enter, alloy element absorptivity is high.
The tissue of ingot casting is uneven in the as-cast condition, ingot homogenization is beneficial to minimizing composition before extruding inclined
Analysis, obtains more uniform ingot structure, improves the processing performance of extrusion molding.But homogenization temperature is more than 380 DEG C
When, burn-off phenomenon can be produced, when temperature is less than 280 DEG C, homogenization temperature retention time can be extended.Therefore homogenization temperature should be 280
～360 DEG C.Homogenization time is long, and the tissue of ingot casting occurs grain coarsening phenomenon, and due to CuZn4The dissolving of phase, number
Amount is reduced, and can affect the anti-wear performance of alloy.
Research shows that, when extrusion temperature is less than 260 DEG C, crimp drag is larger；During higher than 360 DEG C, due to high temperature
Low intensity, extrudate second-rate.
Section bar after extruding can significantly put forward heavy alloyed tensile strength, hard by heat treatment, i.e. solution treatment water quenching
Degree, and with excellent plasticity and toughness.Research shows, section bar is heated to 290～360 DEG C, and water quenching after held for some time,
Reinforcing effect is significant.At high temperature, solubility of Zn, Mg, Cu atom in rich aluminium α phases increases, and in low temperature, Zn, Mg, Cu
Solubility of the atom in rich aluminium α phases is reduced, and when quick cooling, rich aluminium α phases are significantly improved strong in hypersaturated state
Degree, hardness.But, when solid solution temperature is more than 360 DEG C, as the calorific intensity of alloy is low, deforming easily occurs in section bar, and
During water quenching, easily cracking phenomenon.When solid solution temperature is less than 290 DEG C, effect is not notable.Temperature retention time more than 8 hours,
Crystal grain occurs coarsening phenomenon, drops low-alloyed performance.
After section bar heat treatment, room temperature natrual ageing more than two weeks, can improve dimensional stability.
The present invention has been obtained the wear-resisting extruding zinc of high-strength and high ductility by alloy compositions optimization and the combination of PROCESS FOR TREATMENT and has closed
The U-shaped material of gold.
Description of the drawings
Fig. 1 is the engineering machinery U-shaped material of the extruded zinc alloy of three kinds of specifications prepared by present invention extruding.
Specific embodiment
With reference to wide 32mm, high 32mm, wall thickness 8mm U-shaped material specific embodiment, to the present invention further specifically
Bright.
Embodiment 1
U-shaped material width 32mm, high 32mm, wall thickness 8mm.Cast ingot dimension Φ 120X450, recipient diameter of phi 125, extrusion ratio
19.
According to composition proportion (mass percent)：26.0%Al, 2.50%Cu, 0.025%Mg, 0.06%Ti, 0.012%
B, 0.006%C, balance of Zn and inevitable impurity element, impurity element control range is：Fe≤0.1%, Pb≤
0.004%th, Sn≤0.002%, Cd≤0.003%.
Preparation method is as follows：Electrolytic aluminium, cathode copper, zinc ingot metal is weighed, is put in the graphite crucible of preheating, resistance furnace fusing control
700 DEG C of temperature processed.After all melting, slagging-off degassing processing is carried out with refining agent, then stand and skim.Add preheating temperature be
200～300 DEG C of Mg-10%Al intermediate alloys, Al-5%Ti 1%B-0.5%C intermediate alloys, after all melting, by gold
Category liquid stirs, and stands 10 minutes.Ingot casting adopts permanent mold casting, 630～640 DEG C of pouring temperature.After ingot casting cooling, through car
Cut processing and remove superficial oxidation skin, standby extrusion billet is used.
Homogenization Treatments, 300 DEG C of homogenization temperature, 3 hours time is carried out in chamber type electric resistance furnace to extrusion billet.Extruding
300 DEG C of preheating temperature of cylinder, 300 DEG C of mold preheating temperature.
Blank is put in recipient and is extruded, 300 DEG C of extrusion temperature, 25～30mm/s of extruded velocity.
The section bar for having extruded is intercepted the length for requiring.
Put the profile in chamber type electric resistance furnace, be heated to 320 DEG C, be incubated 2 hours, be then put into rapidly 20～25 DEG C
Water in.
The section bar of heat treatment is placed room temperature natrual ageing two weeks.
The mechanical property of section bar condition of heat treatment is：Tensile strength be 530～537MPa, elongation 17～18%, Bu Shi
Hardness HB155～160.
Embodiment 2
U-shaped material width 32mm, high 32mm, wall thickness 8mm.Cast ingot dimension Φ 120X450, recipient diameter of phi 125, extrusion ratio
19.
According to composition proportion (mass percent)：26.0%Al, 2.50%Cu, 0.035%Mg, 0.06%Ti, 0.012%
B, 0.006%C, balance of Zn and inevitable impurity element, impurity element control range is：Fe≤0.1%, Pb≤
0.004%th, Sn≤0.002%, Cd≤0.003%.
Preparation method is as follows：Electrolytic aluminium, cathode copper, zinc ingot metal is weighed, is put in the graphite crucible of preheating, resistance furnace fusing control
700 DEG C of temperature processed.After all melting, slagging-off degassing processing is carried out with refining agent, then stand and skim.Add preheating temperature equal
For 200 DEG C～300 DEG C of Mg-10%Al intermediate alloys, Al-5%Ti 1%B-0.5%C intermediate alloys, after all melting,
Molten metal is stirred, 10 minutes are stood.Ingot casting adopts permanent mold casting, 630～640 DEG C of pouring temperature.After ingot casting cooling,
Superficial oxidation skin is removed through turnery processing, standby extrusion billet is used.
Carry out Homogenization Treatments in chamber type electric resistance furnace to extrusion billet, 360 DEG C of homogenization temperature, 12 hours time, so
After be cooled to 300 DEG C of insulations.300 DEG C of recipient preheating temperature, 300 DEG C of mold preheating temperature.
Blank is put in recipient and is extruded, 300 DEG C of extrusion temperature, 25～30mm/s of extruded velocity.
The section bar for having extruded is intercepted the length for requiring.
Put the profile in chamber type electric resistance furnace, be heated to 320 DEG C, be incubated 2 hours, be then put into rapidly 20～25 DEG C
Water in.
The section bar of heat treatment is placed room temperature natrual ageing two weeks.
The mechanical property of section bar condition of heat treatment is：Tensile strength be 576～579MPa, elongation 10～11%, Bu Shi
Hardness HB170～175.
Embodiment 3
U-shaped material width 32mm, high 32mm, wall thickness 8mm.Cast ingot dimension Φ 120X450, recipient diameter of phi 125mm, extrusion ratio
19.
According to composition proportion (mass percent)：26.0%Al, 3.50%Cu, 0.025%Mg, 0.06%Ti, 0.012%
B, 0.006%C, balance of Zn and inevitable impurity element, impurity element control range is：Fe≤0.1%, Pb≤
0.004%th, Sn≤0.002%, Cd≤0.003%.
Preparation method is as follows：Electrolytic aluminium, cathode copper, zinc ingot metal is weighed, is put in the graphite crucible of preheating, resistance furnace fusing control
700 DEG C of temperature processed.After all melting, slagging-off degassing processing is carried out with refining agent, then stand and skim.Add preheating temperature equal
For 200 DEG C～300 DEG C of Mg-10%Al intermediate alloys, Al-5%Ti 1%B-0.5%C intermediate alloys, after all melting,
Molten metal is stirred, 10 minutes are stood.Ingot casting adopts permanent mold casting, 630～640 DEG C of pouring temperature.After ingot casting cooling,
Superficial oxidation skin is removed through turnery processing, standby extrusion billet is used.
Homogenization Treatments, 300 DEG C of homogenization temperature, 4 hours time is carried out in chamber type electric resistance furnace to extrusion billet.Extruding
300 DEG C of preheating temperature of cylinder, 300 DEG C of mold preheating temperature.
Blank is put in recipient and is extruded, 300 DEG C of extrusion temperature, 25～30mm/s of extruded velocity.
The section bar for having extruded is intercepted the length for requiring.
Put the profile in chamber type electric resistance furnace, be heated to 320 DEG C, be incubated 2 hours, be then put into rapidly 20～25 DEG C
Water in.
The section bar of heat treatment is placed room temperature natrual ageing two weeks.
The section bar mechanical property of condition of heat treatment is：Tensile strength be 540～542MPa, elongation 16～18%, Bu Shi
Hardness HB157～162.
Embodiment 4
U-shaped material width 32mm, high 32mm, wall thickness 8mm.Cast ingot dimension Φ 120X450, recipient diameter of phi 125mm, extrusion ratio
19.
According to composition proportion (mass percent)：26.0%Al, 4.50%Cu, 0.025%Mg, 0.06%Ti, 0.012%
B, 0.006%C, balance of Zn and inevitable impurity element, impurity element control range is：Fe≤0.1%, Pb≤
0.004%th, Sn≤0.002%, Cd≤0.003%.
Preparation method is as follows：Electrolytic aluminium, cathode copper, zinc ingot metal is weighed, is put in the graphite crucible of preheating, resistance furnace fusing control
700 DEG C of temperature processed.After all melting, slagging-off degassing processing is carried out with refining agent, then stand and skim.Add preheating temperature equal
For 200 DEG C～300 DEG C of Mg-10%Al intermediate alloys, Al-5%Ti-1%B-0.5%C intermediate alloys, after all melting,
Molten metal is stirred, 10 minutes are stood.Ingot casting adopts permanent mold casting, 640～650 DEG C of pouring temperature.After ingot casting cooling,
Superficial oxidation skin is removed through turnery processing, standby extrusion billet is used.
Carry out Homogenization Treatments in chamber type electric resistance furnace to extrusion billet, 360 DEG C of homogenization temperature, 12 hours time, so
After be down to 300 DEG C.300 DEG C of recipient preheating temperature, 300 DEG C of mold preheating temperature.
Blank is put in recipient and is extruded, 300 DEG C of extrusion temperature, 25～30mm/s of extruded velocity.
The section bar for having extruded is intercepted the length for requiring.
Put the profile in chamber type electric resistance furnace, be heated to 320 DEG C, be incubated 2 hours, be then put into rapidly 20～25 DEG C
Water in.
The section bar of heat treatment is placed room temperature natrual ageing two weeks.
The mechanical property of section bar condition of heat treatment is：Tensile strength be 545～548MPa, elongation 15～16%, Bu Shi
Hardness HB160～165.
Embodiment 5
U-shaped material width 32mm, high 32mm, wall thickness 8mm.Cast ingot dimension Φ 120X450, recipient diameter of phi 125mm, extrusion ratio
19.
According to composition proportion (mass percent)：30.1%Al, 3.05%Cu, 0.025%Mg, 0.06%Ti, 0.012%
B, 0.006%C, balance of Zn and inevitable impurity element, impurity element control range is：Fe≤0.1%, Pb≤
0.004%th, Sn≤0.002%, Cd≤0.003%.
Preparation method is as follows：Electrolytic aluminium, cathode copper, zinc ingot metal is weighed, is put in the graphite crucible of preheating, resistance furnace fusing control
730 DEG C of temperature processed.After all melting, slagging-off degassing processing is carried out with refining agent, then stand and skim.Add preheating temperature equal
For 200 DEG C～300 DEG C of Mg-10%Al intermediate alloys, Al-5%Ti-1%B-0.5%C intermediate alloys, after all melting,
Molten metal is stirred, 10 minutes are stood.Ingot casting adopts permanent mold casting, 650～670 DEG C of pouring temperature.After ingot casting cooling,
Superficial oxidation skin is removed through turnery processing, standby extrusion billet is used.
Carry out Homogenization Treatments in chamber type electric resistance furnace to extrusion billet, 360 DEG C of homogenization temperature, 6 hours time, then
It is down to 300 DEG C of insulations.300 DEG C of recipient preheating temperature, 300 DEG C of mold preheating temperature.
Blank is put in recipient and is extruded, 300 DEG C of extrusion temperature, 25～30mm/s of extruded velocity.
The section bar for having extruded is intercepted the length for requiring.
Put the profile in chamber type electric resistance furnace, be heated to 320 DEG C, be incubated 2 hours, be then put into rapidly 20～25 DEG C
Water in.
The section bar of heat treatment is placed room temperature natrual ageing two weeks.
The mechanical property of section bar condition of heat treatment is：Tensile strength be 545～548MPa, elongation 15～19%, Bu Shi
Hardness HB165～168.
Embodiment 6
U-shaped material width 32mm, high 32mm, wall thickness 8mm.Cast ingot dimension Φ 120X450, recipient diameter of phi 125mm, extrusion ratio
19.
According to composition proportion (mass percent)：40.5%Al, 3.5%Cu, 0.025%Mg, 0.06%Ti, 0.012%
B, 0.006%C, balance of Zn and inevitable impurity element, impurity element control range is：Fe≤0.1%, Pb≤
0.004%th, Sn≤0.002%, Cd≤0.003%.
Preparation method is as follows：Electrolytic aluminium, cathode copper, zinc ingot metal is weighed, is put in the graphite crucible of preheating, resistance furnace fusing control
730 DEG C of temperature processed.After all melting, slagging-off degassing processing is carried out with refining agent, then stand and skim.Add preheating temperature equal
For 200 DEG C～300 DEG C of Mg-10%Al intermediate alloys, Al-5%Ti-1%B-0.5%C intermediate alloys, after all melting,
Molten metal is stirred, 10 minutes are stood.Ingot casting adopts permanent mold casting, 670～680 DEG C of pouring temperature.After ingot casting cooling,
Superficial oxidation skin is removed through turnery processing, standby extrusion billet is used.
Carry out Homogenization Treatments in chamber type electric resistance furnace to extrusion billet, 360 DEG C of homogenization temperature, 12 hours time, so
After be cooled to 300 DEG C.300 DEG C of recipient preheating temperature, 300 DEG C of mold preheating temperature.
Blank is put in recipient and is extruded, 25～30mm/s of extruded velocity.
The section bar for having extruded is intercepted the length for requiring.
Put the profile in chamber type electric resistance furnace, be heated to 320 DEG C, be incubated 2 hours, be then put into rapidly 20～25 DEG C
Water in.
The section bar of heat treatment is placed room temperature natrual ageing two weeks.
The mechanical property of section bar condition of heat treatment is：Tensile strength be 558～562MPa, elongation 16～20%, Bu Shi
Hardness HB170～175.
Comparative example
U-shaped material width 32mm, high 32mm, wall thickness 8mm, using metal mold gravity casting.
According to composition proportion (mass percent)：26.0%Al, 2.50%Cu, 0.025%Mg, 0.06%Ti, 0.012%
B, 0.006%C, balance of Zn and inevitable impurity element, impurity element control range is：Fe≤0.1%, Pb≤
0.004%th, Sn≤0.002%, Cd≤0.003%..
Preparation method is as follows：Electrolytic aluminium, cathode copper, zinc ingot metal is weighed, is put in the graphite crucible of preheating, resistance furnace fusing control
700 DEG C of temperature processed.After all melting, slagging-off degassing processing is carried out with refining agent, then stand and skim.Add preheating temperature equal
For 200 DEG C～300 DEG C of Mg-10%Al intermediate alloys, Al-5%Ti-1%B-0.5%C intermediate alloys, after all melting,
Molten metal is stirred, 10 minutes are stood.
Using metal mold gravity casting, 630～640 DEG C of pouring temperature.
As-cast condition mechanical property is：Tensile strength be 385～415MPa, elongation 1～3%, Brinell hardness HB115～
120.
Using with extrudate identical Technology for Heating Processing, cast blank is put in chamber type electric resistance furnace, is heated to
320 DEG C, 2 hours are incubated, are then put into rapidly in 20～25 DEG C of water.The mechanical property of condition of heat treatment is：Tensile strength is
440～460MPa, elongation 1%, Brinell hardness HB130～135.
Comparative example 1 can be seen that the U-shaped material prepared with pressing method compared with casting method, in condition of heat treatment
Under, tensile strength improves more than 15%, and elongation improves 17 times, and Brinell hardness improves 18%.
Claims (4)
1. a kind of engineering machinery preparation method of the U-shaped material of the wear-resisting extruded zinc alloy of high-strength and high ductility, is characterized in that, including step such as
Under：
(1) simple metal or intermediate alloy are chosen according to following ingredients mass percent, heats in crucible electrical resistance furnace and melt and pour
Form ingot casting：25.0～45.0%Al, 2.0～5.0%Cu, 0.015～0.04%Mg, 0.04～0.10%Ti, 0.008～
0.02%B, 0.004～0.01%C, balance of zinc and inevitable impurity element, impurity content control range is：
Fe≤0.1%, Pb≤0.004%, Sn≤0.002%, Cd≤0.003%；
(2) ingot casting is carried out Homogenization Treatments；
(3) profile extrusion die is preheated, and on extruder；
(4) by Homogenization Treatments after ingot casting be put in the recipient of extruder, extrusion molding；
(5) extrudate is intercepted required length, is put into heating and thermal insulation in chamber type electric resistance furnace, is then put into rapidly cold water
In, i.e. the laggard water-filling of solution treatment is quenched；
(6) after solution treatment water quenching, room temperature is placed, and natrual ageing obtains finished product in more than two weeks；
Ingot homogenization temperature described in step (2) is 280～360 DEG C, 3～12 hours Homogenization Treatments time；
Extrusion temperature described in step (4) is 260～340 DEG C；
Solid solution temperature described in step (5) is 290～360 DEG C, is incubated 1～8 hour, is then put into rapidly 0 DEG C～35 DEG C
Water in cool down, i.e. water quenching after solution treatment.
2. preparation method of a kind of engineering machinery according to claim 1 with the U-shaped material of the wear-resisting extruded zinc alloy of high-strength and high ductility,
It is characterized in that, the concrete operations of step (1) are first in electrical crucible to add electrolytic aluminium, cathode copper, zinc ingot metal, heat up molten
Change, fusing 700 DEG C～750 DEG C of temperature of control, when aluminium, copper content are high, fusing control temperature is accordingly improved, and treats all fusings
Afterwards, slagging-off degassing processing is carried out with refining agent, skim after standing；Then, the Mg-10% of 200～300 DEG C of preheating temperature is initially charged
Al intermediate alloys, add the Al-5%Ti-1%B-0.5%C intermediate alloys of 200～300 DEG C of preheating temperature, or are simultaneously introduced
The Mg-10%Al intermediate alloys and Al-5%Ti 1%B-0.5%C intermediate alloys of 200～300 DEG C of preheating, treats that intermediate alloy is complete
After portion's fusing, molten metal is stirred, stand 10 to 15 minutes, circular ingot is poured at 620～690 DEG C.
3. preparation method of a kind of engineering machinery according to claim 1 with the U-shaped material of the wear-resisting extruded zinc alloy of high-strength and high ductility,
It is characterized in that, the profile extrusion die described in step (3) is flat-die, and mold preheating temperature is 280～300 DEG C.
4. the U-shaped material of any one of claims 1 to 3 methods described is prepared kirsite.
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| CN107365924A (en) * | 2017-08-09 | 2017-11-21 | 安徽省无为煤矿机械制造有限公司 | A kind of coal-winning machine bushing kirsite |
| CN107460373B (en) * | 2017-10-20 | 2019-08-02 | 安阳工学院 | A method of allumen hardness is improved by heat treatment |
| CN108193085A (en) * | 2018-02-14 | 2018-06-22 | 南京工程学院 | A kind of high conductivity zinc-containing alloy and preparation method thereof |
| CN111349818A (en) * | 2020-03-20 | 2020-06-30 | 有研工程技术研究院有限公司 | Zn-RE-Cu series zinc alloy material for oil and gas exploitation and preparation method and application thereof |
| CN115874104A (en) * | 2022-11-25 | 2023-03-31 | 常州大学 | Medical degradable ZnFeMn medium-entropy alloy and preparation method and application thereof |
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| US4609529A (en) * | 1983-02-11 | 1986-09-02 | Centre De Recherches Metallurgiques | Zinc-based alloys with improved ductility |
| CN100455687C (en) * | 2006-12-06 | 2009-01-28 | 宁波博威集团有限公司 | Process of making zinc-base alloy wire and rod with high strength and high toughness |
| KR20120139160A (en) * | 2011-06-17 | 2012-12-27 | 주식회사 에스제이테크 | The high-strength die-casting alloys for an electronic machine manufacturing |
| CN103667792B (en) * | 2013-12-18 | 2015-06-17 | 福州博德新材料科技有限公司 | Zinc aluminum based alloy extruded tube for delay element of industrial delay detonator and preparation method of zinc aluminum based alloy extruded tube |
| CN103993200B (en) * | 2014-04-30 | 2016-03-23 | 山东省科学院新材料研究所 | A kind of siliceous abrasion-proof zinc-base alloy and preparation method thereof |
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