CN106881372B - A kind of preparation method of high alumina zinc-aluminium puppet alloy bar material and silk material - Google Patents
A kind of preparation method of high alumina zinc-aluminium puppet alloy bar material and silk material Download PDFInfo
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- CN106881372B CN106881372B CN201710059086.9A CN201710059086A CN106881372B CN 106881372 B CN106881372 B CN 106881372B CN 201710059086 A CN201710059086 A CN 201710059086A CN 106881372 B CN106881372 B CN 106881372B
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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
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
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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
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
- B21C37/047—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire of fine wires
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Abstract
The invention discloses a kind of preparation method of high alumina zinc-aluminium puppet alloy bar material and silk material, includes being put into fine aluminium stick or aluminium alloy bars, pure zinc bar in the jacket that material is pure aluminum or aluminum alloy according to certain sequence, form composite blank；After the extrusion die for heating composite blank and extruder, composite blank is put into extrusion die, extrusion billet, prepares compound pseudo- alloy bar material；The drawing tube reducing that obtained compound pseudo- alloy bar material is passed through to multi-pass, is made silk material.The present invention is by squeezing the aluminium bar and zinc bar that are placed in jacket, its deformation is set to mix and form pseudo- alloy bar material, drawing tube reducing is carried out to bar again and obtains high alumina zinc-aluminium puppet alloy wire, zinc-aluminium only deforms in the above process, diameter reduces, between alloying does not occur, not will produce eutectic structure and hard crisp phase, obtained bar deformability is good, and high alumina Aluminum Coating is formed in prepared by the thermal spraying of erosion shield after pseudo- alloy wire can be prepared by drawing tube reducing.
Description
Technical field
The invention belongs to technical field of metal formation, more particularly, to a kind of system of high alumina zinc-aluminium puppet alloy bar material and silk material
Preparation Method.
Background technology
Corrosion is one of the principal mode that metal component destroys, and metal erosion problem is to building, oil, bridge and ship etc.
Multiple industries bring imponderable loss, cause serious consequence.Since the dosage of steel is big, thus about the corruption of steel
Erosion becomes the most important problem of corrosion field, and the corrosion for reducing steel has huge social effect and economic implications.It is right at present
The common anti-corrosion method of steel component has cathode protection method, weathering steel, hot-dip, coating etc..Since coating and cathode are protected
Defending the doctrine, there have the shortcomings that be respective, for example coating inevitably has certain gas permeability and seepage of water, cathode protection method protection
Small, serious, short life affected by environment of range etc..And thermal jet zinc coating or aluminized coating then due to having coating and cathode to protect simultaneously
The advantages of defending the doctrine has good development prospect.It has particular application as that zinc or aluminum-alloy wire are sprayed to steel using hot-spraying technique
Component surface forms the metal cladding of even compact, can reach the steel component of the various corrosive environments of digital preservation.
The material used in zinc or aluminium thermal spraying mainly has fine aluminium, pure zinc, Zn5Al alloys and Zn15Al alloys etc. at present.Its
Middle pure aluminum coating contains relatively high porosity, and very sensitive to Cl- present in water, spot corrosion easily occurs, and to machine
Tool damage is also more sensitive.Pure spelter coating is in marine environment, weak acid environment and contains SO2Corrosion resistance in the environment of industrial atmosphere
Poor, rate of corrosion is higher so that the consumption of coating quickly, affects the anti-corrosion life of coating.Zn5Al's and Zn15Al is corrosion-resistant
Although performance is pure compared with fine aluminium, zinc corrosion resistance will be got well, still to be improved.According to existing studies have shown that as Al contains
The raising of amount, coating surface tend to complete densification, and Al content it is less alloy coat it is impervious insufficient, penetrate readily through, corrosion resistant
Corrosion can be significantly lower than the higher alloy coat of Al content.
However, the preparation of high alumina Aluminum Coating still remains certain problem, the preparation method of high alumina Aluminum Coating at present
There are hot dipping method, coating sintering process, powder cored filament material method and the pure zinc silk of electric arc spraying and fine aluminium silk method.Wherein hot-dip and coating
Sintering process can only to being handled compared with small workpiece, due to the limitation both methods of immersion plating pond and drying box can not to large-scale steel structure into
Row protection.The complex process of powder cored filament material, and the cost of high quality alloyed powder is higher, now also in conceptual phase.If
When carrying out electric-arc thermal spray coating with one Zn and one Al, by adjusting two feed speeds or using the silk of different-diameter
Material combines, and can prepare the Zn-Al pseudo alloy coatings of high Al content.But the defect of this coating is different silk material diameters
Or wire feed rate combination, cause to be atomized uneven, the ingredient of coating comes and go in regional area, to affect the property of coating
Energy.
In addition there are using high alumina Zn-Al alloy wire material to workpiece surface carry out thermal spraying technique, used in high aluminum zinc
Aluminium alloy silk material is to obtain obtaining after squeezing drawing tube reducing after ingot casting using fine aluminium and pure Zinc smelting, but this melting and casting process
In, fine aluminium and pure zinc form allumen, and are more than 15% allumen for Al content, and continuing growing the content of Al can make
The formation of brittlement phase in alloy, the ingot casting caused are difficult to carry out drawing tube reducing to obtain silk material, difficulty of processing and processing cost
It greatly improves, limits the development and application of high alumina Zn-Al alloy wire material.How the thermal spraying Zn-Al alloy wire of high alumina is prepared
Material becomes the key to solve the problem.Also have at present and prepares Zn-15~30Al's by the method for drawing using rolled tin cladding aluminium powder
The method that powder cored filament material carries out thermal spraying, but powder cored filament material spraying process is unstable, influences the performance of corrosion-inhibiting coating, Er Qiegao
The preparation of quality nano-powder and silk material higher operating costs.
Invention content
In order to solve the above technical problems, the present invention provides a kind of preparation sides of high alumina zinc-aluminium puppet alloy bar material and silk material
Method, the present invention do not generate brittlement phase, improve the deformability of silk material without melting, blank by extruding drawing aftershaping,
Solve the problems, such as that high alumina Zn-Al alloy wire material is difficult to be molded.
The complete technology path of the present invention includes：
A kind of preparation method of high alumina zinc-aluminium puppet alloy bar material, specifically comprises the following steps：
1) prepared by composite blank, and fine aluminium stick or aluminium alloy bars, pure zinc bar are put into according to certain sequence in jacket, is formed
Composite blank；
2) prepared by compound pseudo- alloy bar material, and after the extrusion die for heating composite blank and extruder, composite blank is put into
In extrusion die, extrusion billet prepares compound pseudo- alloy bar material.
A kind of preparation method of high alumina zinc-aluminium puppet alloy wire, specifically comprises the following steps：
1) prepared by composite blank, and fine aluminium stick or aluminium alloy bars, pure zinc bar are put into according to certain sequence in jacket, is formed
Composite blank；
2) prepared by compound pseudo- alloy bar material, and after the extrusion die for heating composite blank and extruder, composite blank is put into
In extrusion die, extrusion billet prepares compound pseudo- alloy bar material；
3) prepared by compound pseudo- alloy wire, and the compound pseudo- alloy bar material that step 2) obtains is subtracted by the drawing of multi-pass
Silk material is made in diameter.
The jacket is cup-shaped jacket, and the jacket material is pure aluminum or aluminum alloy.
The zinc bar is evenly distributed between aluminium bar.
Step 2) the composite blank heating temperature is 280~300 DEG C, the extrusion die heating temperature 250 DEG C~280
℃。
Further include that one layer of extrusion lubricant is brushed on extrusion die cavity plate and extrusion cylinder before squeezing in the step 2).
The extrusion lubricant adds 30%~40%15000 mesh graphite powder using 60%~70% automobile oil, mixing
Uniformly.
The step 2) and 3) between further include the compound pseudo- alloy bar material of excision head and tail portion, and to remainder branch school
Directly.
The step 2) and 3) between further include by alignment after bar be put into annealing furnace, anneal, annealing process
It is 200 DEG C~250 DEG C, keeps the temperature 30min~90min, furnace cooling.
The step 3) further includes intermediate annealing process during the drawing tube reducing of multi-pass, and intermediate annealing process is
200 DEG C~250 DEG C, keep the temperature 30min~90min, furnace cooling.
A kind of composite blank prepared for high alumina zinc-aluminium puppet alloy bar material, which is characterized in that the blank includes packet
Set, and it is put into fine aluminium stick in jacket or aluminium alloy bars and pure zinc bar according to certain sequence, the jacket material is pure
Aluminum or aluminum alloy.
The present invention compared with the existing technology the advantages of be：
For high alumina Zn-Al alloy wire material in the prior art during melting and casting, fine aluminium and pure zinc form zinc-aluminium and close
Gold makes brittlement phase in alloy be formed, and the ingot casting caused is difficult to carry out the technical issues of drawing tube reducing obtains silk material, by more
Core sheathed extrusion has given full play to the deformability of zinc under three-dimensional compressive stress state, has shortened technological process, greatly reduced
Drawing passes reduces production cost.This method can also adjust according to production requirement and improve wire composition, can prepare Al
The zinc aluminium false alloy silk material of content 15%~95%.It is more than that 15% silk material is difficult to be molded to solve current allumen Al content,
And the problem of low al content coating corrosion resistance energy difference.The good moldability of silk material：The composite slab of extrusion process and the pure zinc of fine aluminium
Material, substantially increases its deformability, and the drawing tube reducing process of silk material is made to be more prone to and smoothly, be combined in blank by adjusting
The ingredient of the ratio and aluminium bar of portion's zinc bar and aluminium bar can simply and easily adjust silk material at being grouped as, using squeezing and cold
The forming process of drawing improves life without melting, isometric time-consuming, highly energy-consuming the production process of prolonged homogenizing annealing
Efficiency is produced, the energy consumption of production process is reduced, improves Al content in silk material, the higher Zn of cost is reduced and uses, Er Qiegao
The technical process of energy consumption is few, reduces the cost of silk material.Zinc-aluminium only deforms inside extrusion process bar, and diameter reduces,
Alloying does not occur between zinc bar and aluminium bar and zinc bar and jacket, not will produce eutectic structure and hard crisp phase.Bar
Deformability is good, and pseudo- alloy wire is prepared by drawing tube reducing.High aluminum zinc is formed in prepared by the thermal spraying of erosion shield
Aluminized coating significantly promotes the development and application of high alumina Zn-Al alloy wire material.
Description of the drawings
Fig. 1 is cup-shaped jacket diagrammatic cross-section disclosed in this invention.
Fig. 2 is composite blank sectional view disclosed in this invention.
Fig. 3 is the high alumina zinc-aluminium puppet alloy bar material section structure figure prepared.
Fig. 4 is the high alumina zinc-aluminium puppet alloy wire prepared.
Specific implementation mode
The present invention will be further described with reference to the accompanying drawings and detailed description.
Step 1：
Cup-shaped 1050A aluminium jackets are prepared, wall thickness is by cup-shaped jacket diagrammatic cross-section as shown in Figure 1, manufacturing process is
The 1050A aluminum pipe Cutting Lengths of a diameter of 80mm of 10mm are the aluminum pipe of 50mm, and the polishing of cutting end face or turning are smooth；It will
The 1050A aluminium sheets of thickness 10mm are cut into the round aluminium flake of a diameter of 80mm.The two is welded into Fig. 2 using argon tungsten-arc welding
Shown in cup-shaped jacket.
Jacket can also use other Al alloys that antiseptic property is good, deformability is good, and ingredient described in addition silk material
From design aluminium alloy.The size of jacket can also be：Diameter：78~82mm, thickness：10~30mm, height 50mm~
200mm。
Step 2：
The 1050A of diameter 10mm or the alignment of other rodss and bars of aluminium alloy are cut into 50mm long spillikins.By diameter 10mm's
The alignment containing 99.995% pure zinc bar cuts into 50mm long spillikins.
Step 3：
Use ultrasonic cleaning cup-shaped jacket, zinc bar and fine aluminium bar.Then take 12 Zn sticks and 14 aluminium bars according to one
It is fixed to be sequentially put into cup-shaped jacket, so that Zn sticks is evenly distributed between aluminium bar as possible, as shown in Figure 2.
In preferred mode, quantity >=2 of core bar, piece aluminium bar of an at least zinc bar.Zinc bar and aluminium bar are maximum
It is several to be determined according to the diameter of jacket inside diameter and bar.
Core bar size：H is consistent with jacket internal height, is 50mm~200mm.
Step 4：
Extrusion billet is put into heating furnace and is heated to 280~300 DEG C, keeps the temperature 30min；Extrusion die is heated to 250 DEG C
~280 DEG C.
Step 5：One layer of uniform extrusion lubricant is brushed on extrusion die cavity plate and extrusion cylinder.Extrusion lubricant uses
The uniformly mixed lubricating oil of+30%~40%15000 mesh graphite powder of 60%~70% automobile oil, uses squeeze pressure 350
~400t extruder extrusion billets.The compound pseudo- alloy bar material of 10mm is prepared, the section structure figure of bar is as shown in figure 3, figure
Middle white arrow meaning is the Zn in bar.
Step 5：
By the tail portion of 10mm bars excision the squeeze bulb 20cm~40cm and 20cm~40cm of extrusion, middle part branch school
Directly.
Step 6：
Bar after alignment is put into annealing furnace, is annealed, and annealing process is 200 DEG C~250 DEG C, and heat preservation 30min~
90min, furnace cooling.
Step 7：
Bar after annealing passes through the drawing tube reducing and intermediate annealing process of multi-pass, and the silk material of a diameter of 3mm is made.In
Between annealing process be 200 DEG C~250 DEG C, keep the temperature 30min~90min, furnace cooling.
The smooth 3mm silk materials in surface are successfully prepared by above step, as shown in Figure 4.
In another embodiment, jacket preparation method be using solid cylinder aluminium bar, in aluminium bar centre-drilling hole, or
Gone out using other tool processes, cup-shaped endoporus is polishing to smooth.
The ingredient of the pure zinc of zinc bar become as 99.995%, aluminium bar is fine aluminium or aluminium alloy.Silk material Al content is adjusted,
It can need addition other elements such as Mg, Si, Zr, Ti, Re etc. can be by these ingredients by the ratio of adjusting zinc bar and aluminium bar
It is added in aluminium bar and is prepared into rods and bars of aluminium alloy.The zinc-aluminium anti-corrosion alloy silk material of preparation can contain other than containing zinc and Al
One of the above or Multiple components.
The above is only presently preferred embodiments of the present invention, is not imposed any restrictions to the present invention, every according to the present invention
Technical spirit changes any simple modification, change and equivalent structure made by above example, still falls within skill of the present invention
In the protection domain of art scheme.
Claims (2)
1. a kind of preparation method of high alumina zinc-aluminium puppet alloy bar material, specifically comprises the following steps：
1) cup-shaped jacket is prepared, the pipe for being 50mm by the aluminum or aluminum alloy pipe Cutting Length that wall thickness is a diameter of 80mm of 10mm is cut
Cut node face is polished or turning is smooth；The aluminum or aluminum alloy plate of thickness 10mm is cut into the circular piece of a diameter of 80mm,
The two is welded into diameter using argon tungsten-arc welding：78~82mm, thickness：The cup-shaped packet of 10~30mm, height 50mm~200mm
Set；
2) 1050A of diameter 10mm or the alignment of other rodss and bars of aluminium alloy are cut into 50mm long spillikins, by containing for diameter 10mm
99.995% pure zinc bar alignment cuts into 50mm long spillikins, using cup-shaped jacket, zinc bar and fine aluminium bar is cleaned by ultrasonic, so
After take 12 zinc bars and 14 aluminium bars to be put into cup-shaped jacket according to certain sequence, make as possible zinc bar be evenly distributed on aluminium bar it
Between, form composite blank；
3) extrusion billet is put into heating furnace and is heated to 280~300 DEG C, keep the temperature 30min；Extrusion die be heated to 250 DEG C~
280℃；
4) one layer of uniform extrusion lubricant is brushed on extrusion die cavity plate and extrusion cylinder, extrusion lubricant uses 60%~70% vapour
The uniformly mixed lubricating oil of+30%~40%15000 mesh graphite powder of vehicle lubricating oil, uses squeeze pressure 350~400t extruders
Extrusion billet prepares the compound pseudo- alloy bar material of 10mm.
2. a kind of preparation method of high alumina zinc-aluminium puppet alloy wire, specifically comprises the following steps：
1) cup-shaped jacket is prepared, the pipe for being 50mm by the aluminum or aluminum alloy pipe Cutting Length that wall thickness is a diameter of 80mm of 10mm is cut
Cut node face is polished or turning is smooth；The aluminum or aluminum alloy plate of thickness 10mm is cut into the circular piece of a diameter of 80mm,
The two is welded into diameter using argon tungsten-arc welding：78~82mm, thickness：The cup-shaped packet of 10~30mm, height 50mm~200mm
Set；
2) 1050A of diameter 10mm or the alignment of other rodss and bars of aluminium alloy are cut into 50mm long spillikins, by containing for diameter 10mm
99.995% pure zinc bar alignment cuts into 50mm long spillikins, using cup-shaped jacket, zinc bar and fine aluminium bar is cleaned by ultrasonic, so
After take 12 Zn sticks and 14 aluminium bars to be put into cup-shaped jacket according to certain sequence, make as possible Zn sticks be evenly distributed on aluminium bar it
Between, form composite blank；
3) extrusion billet is put into heating furnace and is heated to 280~300 DEG C, keep the temperature 30min；Extrusion die be heated to 250 DEG C~
280℃；
4) one layer of uniform extrusion lubricant is brushed on extrusion die cavity plate and extrusion cylinder, extrusion lubricant uses 60%~70% vapour
The uniformly mixed lubricating oil of+30%~40%15000 mesh graphite powder of vehicle lubricating oil, uses squeeze pressure 350~400t extruders
Extrusion billet prepares the compound pseudo- alloy bar material of 10mm；
5) tail portion of the 10mm bars excision the squeeze bulb 20cm~40cm and 20cm~40cm that squeeze out, middle section alignment, school
Bar after straight is put into annealing furnace, is annealed, and annealing process is 200 DEG C~250 DEG C, 30min~90min is kept the temperature, with stove
Cooling, the bar after annealing passes through the drawing tube reducing and intermediate annealing process of multi-pass, and the silk material of a diameter of 3mm is made, intermediate
Annealing process is 200 DEG C~250 DEG C, keeps the temperature 30min~90min, furnace cooling.
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