CN109428285A - A kind of portable aerial work platform - Google Patents
A kind of portable aerial work platform Download PDFInfo
- Publication number
- CN109428285A CN109428285A CN201710769168.2A CN201710769168A CN109428285A CN 109428285 A CN109428285 A CN 109428285A CN 201710769168 A CN201710769168 A CN 201710769168A CN 109428285 A CN109428285 A CN 109428285A
- Authority
- CN
- China
- Prior art keywords
- platform
- temperature
- alloy
- platform body
- aerial work
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
-
- 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
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
-
- 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
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/043—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon as the next major constituent
Abstract
The present invention provides a kind of portable aerial work platform, including platform body, retention mechanism of the platform body side for platform body to be fixed is set, be arranged below the platform body and with the auxiliary support mechanism, disassembly platform on the platform body is set, seat modular on the platform body is set, and the balance mechanism being arranged on the retention mechanism；The present invention is directed in the prior art when Overhead power distribution is safeguarded, when due to needing operator to carry out high-altitude maintenance, the phenomenon that not only being sought connections with but also being dismounted, it can be improved the online efficiency for carrying out operation, so that the 3-4 hours working times of script, it shorten to 40-50 minutes, and only needs a people that operation can be completed.
Description
Technical field
The present invention relates to attaching/detaching apparatus technical fields, and in particular to a kind of portable aerial work platform.
Background technique
High pressure power supply and distribution be it is most common in power supply-distribution system, electrical equipment in route is since road is remote, and work item
Part is complicated, exposes to the sun and rain exposed, and aging circuit, route damage etc. frequent occurrence, need routine test, inspection and maintenance, institute
It is Utilities Electric Co. to action method common in overhaul of the equipments, test process to charge high altitude operation.The common work of high altitude operation
With liftable bucket arm vehicle, insulating ladder, insulated platform etc., bucket arm vehicle is only applicable to flat region, and insulating ladder then can only
Low latitude livewire work being carried out in the preferable situation of topography, and its center of gravity is higher, being easy to appear overturning, traditional climbers, which have, to be made
The characteristics of industry range flexibility and changeability, and not limited by landform, in 35kV and the following construction of line or maintenance process, operation people
Member relies on climbers to carry out operation on shaft tower, and generally using climbers as supporting point, safety belt is auxiliary impetus, and there are problems
Be: (1) since supporting point is few, work long hours lower large labor intensity, and physical demands is more, it is easy to cause the foot of operating personnel
Fatigue and discomfort；(2) staff on shaft tower causes not moving when fire operation, labour protection of easily burning is used because using climbers
Product cause personal injury, increase work risk；(3) when installing large-sized object, it usually needs more than two operating personnels into
Row cooperation, the space of multiple climbers interferes with each other at this time, not only influences job schedule, nor safe；(4) make on shaft tower
The efficiency far to be worked with climbers is lower than the efficiency to work on the ground.
Authorization Notice No. CN202767485U discloses a kind of multifunction insulating fast-assembling job platform, including the right and left bottom
Cuttage grafting frame, be installed on bottom support arm and the support leg under cuttage grafting frame, it is pluggable more on the cuttage grafting frame of both sides bottom
A cuttage grafting frame, the cuttage grafting frame on both sides is hooked by transverse supporting rod and inclined support bar forms an entirety, and assembling platform is taken on cuttage grafting frame
It steps on and guardrail, the structure is disadvantageous in that: being limited to operation landform, operating personnel stands has shakiness on job platform
The phenomenon that, it is easy to gravity center instability occurs and causes the risk fallen or slid.
Application publication number CN105253824A discloses a kind of climbing ladder apparatus of aerial work platform, including platform, protective fence,
Ladder, railroad and knocker；Protective fence is installed in three face of platform, and another side installs ladder；Contact between ladder and protective fence
Face is installed by railroad；Two side position of protective fence lower end that knocker is mounted on ladder lower end two sides and contacts with ladder；The structure
Be disadvantageous in that: the volume of whole device is larger, and difficulty is high in erection process, and needs for electric pole different location
When carrying out operation, need to repeat to dismount, heavy workload.
Therefore, it is necessary to one kind to use outdoors, and can be to one stable job platform of offer, while structure is steady
Fixed and light quality, and can be used for a long time outdoors, the danger that fractures due to long-term corrosion bring is avoided, and have well
Counterbalance effect.
Summary of the invention
In view of this, purpose provided by the invention is that in view of the deficiencies of the prior art, it is simple to provide a kind of structure, operation letter
Just, and it is easy to carry, while stable structure, it can be realized one man operation, and can use outdoors for a long time, avoid due to long-term
Corrosion bring fractures dangerous portable aerial work platform.
In order to solve the above technical problems, the technical solution used in the present invention is: a kind of portable aerial work platform, packet
Platform body is included, retention mechanism of the platform body side for platform body to be fixed is set, is arranged in the platform
Below ontology and with the auxiliary support mechanism, the disassembly platform on the platform body is set, is arranged in the platform sheet
Seat modular on body, and the balance mechanism being arranged on the retention mechanism；
The retention mechanism includes the bridge joint block being connected with the platform body, first armful to be connected with the bridge joint block
Hoop, is arranged in the locking belt of first anchor ear one end, the fixed column on the first anchor ear other end is arranged in；Setting is in institute
State the first anchor ear lower surface for Auxiliary support and auxiliary support plate, the pressure sensing on the auxiliary support plate is set
Device；
The auxiliary support mechanism includes auxiliary clamp module, more Auxiliary supports being connected with the auxiliary clamp module
Bar, the more auxiliary support bars are connected with platform body, and the balance module on the platform body lower surface is arranged in；
The dismounting platform includes dismounting plate, and the support column of the dismounting plate lower surface, the support column passes through rotating member and institute
Platform body is stated to be connected；
The balance mechanism includes the tilting bar being connected with first anchor ear, and the balance of the tilt rod end is arranged in
The clump weight of the balance bar ends is arranged in bar；
The platform body, retention mechanism, auxiliary support mechanism, disassembly platform, the tilting bar are articles made of aluminium alloy, described
Aluminium alloy is made of the ingredient of following mass percents:
Mg:2.0~3.2%；
Si:3.5~4.5%；
Mn:0.2~0.3%；
Cr:0.1~0.2%；
Zr:0.18~0.25%；
Ti:0.35~0.40%；
Yb:0.15~0.3%；
Surplus is the impurity of Al and content≤0.05%.
The seat modular includes seat body, and the support column on the seat body lower surface, the support is arranged in
Column is connected by rotating member with platform body, and the safety belt being arranged in the seat body.
The balance module includes MEMS accelerometer and MEMS gyroscope.
The auxiliary support bar is electric telescopic rod.
First anchor ear is connected with the second anchor ear end by hinge.
The auxiliary clamp module includes auxiliary anchor ear, with the fastening straps that auxiliary anchor ear one end is arranged in, the fastening straps
Fixation hole, the fixed pin of the auxiliary anchor ear other end setting is arranged in front.
Preferably, the aluminium alloy is made of the ingredient of following mass percents:
Mg:2.5%；
Si:3.8%；
Mn:0.25%；
Cr:0.14%；
Zr:0.21%；
Ti:0.36%；
Yb:0.23%；
Surplus is the impurity of Al and content≤0.05%.
Preferably, the preparation method of the aluminium alloy, includes the following steps:
Step S1: carrying out alloy melting by mentioned component proportion, and the alloy melting temp is 720 DEG C -750 DEG C, and heat preservation 10~
12 minutes, obtain alloy molten solution one；
Step S2: being added refining agent in gained alloy molten solution one and refined, and the temperature of the refining is 730~740 DEG C, when
Between be 10~15 minutes, obtain alloy molten solution two；
Step S3: the alloy molten solution two is cooling, it squeezes, obtains ingot casting；
Step S4: being warming up to 450 DEG C for the ingot casting with the speed of 0.72 DEG C/min, and it is small that 10~12 are kept the temperature at a temperature of 450 DEG C
When, carry out Homogenization Treatments；
Step S5: keeping the temperature 1~1.2 hour under the conditions of 360 DEG C for the ingot casting after Homogenization Treatments, is warming up to 420 DEG C of progress heat
It rolls, hot-rolled temperature is not less than 370 DEG C；
Step S6: the alloy material after hot rolling is heated to 485~500 DEG C, keeps the temperature 5~7h, then water quenching to room temperature；
Step S7: the alloy material after solution treatment is subjected to ageing treatment, obtains aluminum alloy materials.
Preferably, the refining agent is made of the raw material of following weight parts: 50~60 parts of two carbon of chlordeneization, potassium chloride 10~
20 parts, 20~30 parts of bentonite.
Preferably, the temperature of the ageing treatment is 165~180 DEG C, and the time is 6~10h.
The present invention is directed in the prior art when Overhead power distribution is safeguarded, when due to needing operator to carry out high-altitude maintenance,
The phenomenon that not only being sought connections with but also being dismounted, a job platform can aloft be provided by providing one kind, into
Row operation, the invention include that fastening of the platform body side for platform body to be fixed is arranged in including platform body
Mechanism, below the platform body and with the auxiliary support mechanism, the disassembly being arranged on the platform body is flat for setting
The seat modular on the platform body is arranged in platform, and the balance mechanism being arranged on the retention mechanism；Pass through fastening
Platform body is tentatively fixed in tower bar by mechanism realization, then carries out levelness adjusting by auxiliary support mechanism, it is ensured that flat
The stability of playscript with stage directions body, and the disassembly platform being arranged, are capable of providing a stable disassembly platform and avoid occurring zero in dismounting
The phenomenon that part is fallen, and the seat modular being arranged is capable of providing a stable support construction, it is ensured that the safety of operator；And
The phenomenon that balance mechanism of setting can balance the lateral force of tower bar two sides, tower bar is avoided to topple over, and can be improved online progress
The efficiency of operation, so that the 3-4 hours working times of script, shorten to 40-50 minutes, and only need a people that operation can be completed.
In addition, the retention mechanism used includes the bridge joint block being connected with the platform body, it is connected with the bridge joint block
The first anchor ear connect, is arranged in the locking belt of first anchor ear one end, and the fixation on the first anchor ear other end is arranged in
Column；Be arranged in first anchor ear lower surface for Auxiliary support and auxiliary support plate, be arranged on the auxiliary support plate
Pressure sensor；The bridge joint block used is Hard link, it is ensured that the intensity of structure, and use the first anchor ear can with tower bar into
Row contact, provides levers support point, and in order to realize better contact, auxiliary support plate is set in the first anchor ear lower surface, is increased
Greatly with the contact area of end face, the fixed form used is the mode of locking belt and fixed column cooperation, it is ensured that the stability of structure,
And by way of locking belt and fixed column cooperation, the fixation on top can be realized, it ensure that fixed stability.
In addition, the auxiliary support mechanism used includes auxiliary clamp module, it is connected with the auxiliary clamp module more
Root auxiliary support bar, the more auxiliary support bars are connected with platform body, are arranged on the platform body lower surface
Balance module；The dynamic regulation that the present apparatus is realized by more auxiliary support bars, guarantees the quality of balance, and the balance mould used
Block includes MEMS accelerometer and MEMS gyroscope, so that the two is combined, it is ensured that the stability of platform body is realized dynamic in real time
State balance；The balance mechanism of use includes
The balancing pole of the tilt rod end is arranged in the tilting bar being connected with first anchor ear, is arranged in the balance
The clump weight of boom end；It can be realized the leap to tower bar by tilting bar, and in the balancing pole of tilt rod end setting, and
Clump weight is arranged in the end of balancing pole, and matches with pressure sensor, for realizing dynamic regulation, it is ensured that the structure of structure is steady
It is qualitative, and the control device used can be the PLC being arranged on platform body bottom surface, or microcontroller, it can be with
For smart phone, the power supply used is rechargeable lithium battery that platform body bottom surface is arranged in.
In addition, the dismounting platform used includes dismounting plate, the support column of the dismounting plate lower surface, the support column passes through
Rotating member is connected with the platform body；The dismounting plate of use can realize the rotation of dismounting plate by rotating member, and use
Seat modular include seat body, the support column on the seat body lower surface is set, and the support column passes through rotation
Part is connected with platform body, and the safety belt being arranged in the seat body；The seat body of use, which can be realized, to be turned
It is dynamic, and the safety belt used can be realized the safety of operator on it, in addition, the auxiliary clamp module used includes auxiliary
Anchor ear, with the fastening straps that auxiliary anchor ear one end is arranged in, fixation hole, the auxiliary anchor ear other end is arranged in the fastening straps front
The fixed pin of setting；Fastening is realized by the cooperation of fixation hole and fixed pin, while when pushing for assisting anchor ear pushing to incline
The fastening for tiltedly realizing fastening straps, enhances the stability of structure.
Majority of the present invention is applied in open-air atmosphere, and needs to carry by operator, can inevitably generate corrosion,
And due to needing to carry certain quality, meets the needs of operation with this；For this purpose, applicant is directed to the job requirements of the present apparatus
And the needs of operating environment etc., wherein the function analysis of each ingredient in aluminium alloy of the present invention:
Mg: appropriate Mg is added in aluminium alloy can enhance the corrosion resistance of aluminium alloy, but also aluminium alloy more easily forms, still
Also result in aluminium alloy red brittleness increase, applicant it has been investigated that, when Mg of the present invention is between 2.0~3.2%, aluminium alloy
Excellent corrosion-proof performance, while intensity is obviously improved, and is declined more than 3.2% corrosion resistance, and red brittleness increases；
Si: appropriate Si is added in aluminium alloy can improve the tensile strength, hardness and machinability of aluminium alloy, but to plasticity
It can be unfavorable.Applicant it has been investigated that, the present invention in Mg between 3.5~4.5% when, conducive to the plastic processing of aluminium alloy, simultaneously
The excellent corrosion-proof performance of aluminium alloy, while intensity is obviously improved, the increase more than 4.5% pair of intensity of aluminum alloy is unfavorable；
Mn: appropriate Mn is added in aluminium alloy can improve elevated temperature strength, refinement crystal grain, but be more than that certain limit then easily reduces conjunction
Golden heating conduction, therefore, it is 0.2~0.3% that the present invention, which controls Mn content,；
Cr: there is certain invigoration effect to aluminium alloy, moreover it is possible to improve the toughness of aluminium alloy, reduce stress corrosion cracking sensitivity
Property, but will increase the quenching sensitive of aluminium alloy, it is 0.1~0.2% that the present invention, which controls Cr content,；
Zr: can refine crystal grain, improve the comprehensive performance of aluminium alloy, and can reduce impurity F e to a certain extent to aluminium alloy
Harm, the content that the present invention controls Zr is 0.18~0.25%；
Ti: having inhibiting effect to alloy precipitated phase, can effectively hinder recrystallization, refining grain size, thus reinforcing material
Corrosion resistance, the content that the present invention controls Ti is 0.35~0.40%；
Yb: can refine crystal grain with element Zr cooperation, enhance the mechanical strength of aluminium alloy, the content that the present invention controls Yb is 0.15
~0.3%；
By above-mentioned each element and its coordinated of content, the mechanical performance and excellent anti-corrosion performance of aluminum alloy materials are special
Portable aerial work platform Shi Yongyu not made.
Detailed description of the invention
Fig. 1 is the overlooking structure diagram of the portable aerial work platform of the present invention；
Fig. 2 is side structure schematic diagram of the invention；
Fig. 3 is the structural schematic diagram of auxiliary support mechanism of the present invention.
Specific embodiment
Below with reference to some specific embodiments, the present invention is further described.
Embodiment 1
Refering to fig. 1~3, a kind of portable aerial work platform, including platform body 2, setting 2 side of platform body for pair
The retention mechanism that platform body 2 is fixed, be arranged below the platform body 2 and with the auxiliary support mechanism, setting
The seat modular on the platform body 2 is arranged in disassembly platform 1 on the platform body 2；, and be arranged described
Balance mechanism on retention mechanism；
The retention mechanism includes the bridge joint block 10 being connected with the platform body 2, the to be connected with the bridge joint block 10
The locking belt 6 of described first anchor ear, 4 one end is arranged in one anchor ear 4, and the fixed column on 4 other end of the first anchor ear is arranged in
5；Be arranged in 4 lower surface of the first anchor ear for Auxiliary support and auxiliary support plate 22, be arranged in the auxiliary support plate
Pressure sensor 21 on 22；
The auxiliary support mechanism includes auxiliary clamp module, more auxiliary support bars being connected with the auxiliary clamp module
17, the more auxiliary support bars 17 are connected with platform body 2, and the balance mould on 2 lower surface of platform body is arranged in
Block 12；
The dismounting platform includes dismounting plate 15, and the support column 14 of dismounting 15 lower surface of plate, the support column passes through rotation
Part 13 is connected with the platform body 2；
The balance mechanism includes the tilting bar 7 being connected with first anchor ear 4, and the flat of 7 end of tilting bar is arranged in
Weigh bar 8, and the clump weight 9 of 8 end of balancing pole is arranged in；
The seat modular includes seat body 3, and the support column on 3 lower surface of seat body, the support column is arranged in
It is connected by rotating member with platform body 2, and the safety belt 11 being arranged in the seat body.
The balance module 12 includes MEMS accelerometer and MEMS gyroscope.
The auxiliary support bar 17 is electric telescopic rod.
First anchor ear 4 is connected with 9 end of the second anchor ear by hinge.
The auxiliary clamp module includes auxiliary anchor ear 18, described with the fastening straps 19 that auxiliary 18 one end of anchor ear is arranged in
Fixation hole 20, the fixed pin 16 of auxiliary 18 other end of the anchor ear setting is arranged in 19 front of fastening straps.
The platform body 2, retention mechanism, auxiliary support mechanism, disassembly platform, the tilting bar are aluminium alloy system
Part, the aluminium alloy are made of the ingredient of following mass percents:
Mg:2.5%；
Si:3.8%；
Mn:0.25%；
Cr:0.14%；
Zr:0.21%；
Ti:0.36%；
Yb:0.23%；
Surplus is the impurity of Al and content≤0.05%.
The impurity is inevitable impurity well known to those skilled in the art, generally includes Fe, the impurity member such as V, Ni
Element.
The preparation method of the aluminium alloy, includes the following steps:
Step S1: carrying out alloy melting by mentioned component proportion, and the alloy melting temp is 730 DEG C, keeps the temperature 10 minutes, obtains
Alloy molten solution one；
Step S2: being added refining agent in gained alloy molten solution one and refined, and the temperature of the refining is 735 DEG C, and the time is
12 minutes, obtain alloy molten solution two；
Step S3: the alloy molten solution two is cooled down, and is squeezed, is obtained ingot casting；
Step S4: being warming up to 450 DEG C for the ingot casting with the speed of 0.72 DEG C/min, keeps the temperature 10 hours at a temperature of 450 DEG C, into
Row Homogenization Treatments；
Step S5: keeping the temperature 1 hour under the conditions of 360 DEG C for the ingot casting after Homogenization Treatments, is warming up to 420 DEG C of progress hot rollings, heat
Temperature is rolled not less than 370 DEG C；
Step S6: the alloy material after hot rolling is heated to 490 DEG C, keeps the temperature 6h, then water quenching to room temperature；
Step S7: the alloy material after solution treatment is subjected to ageing treatment, obtains aluminum alloy materials.
The refining agent is made of the raw material of following weight parts: 55 parts of two carbon of chlordeneization, 15 parts of potassium chloride, bentonite 25
Part.The dosage of refining agent is the 0.45%~0.50% of aluminium alloy gross mass, the present embodiment 0.48%.
The temperature of the ageing treatment is 172 DEG C, time 8h.
Embodiment 2
The portable aerial work platform structure of the present embodiment is substantially the same manner as Example 1, the difference is that wherein:
The aluminium alloy is made of the ingredient of following mass percents:
Mg:2.8%；
Si:4.2%；
Mn:0.28%；
Cr:0.16%；
Zr:0.23%；
Ti:0.38%；
Yb:0.25%；
Surplus is the impurity of Al and content≤0.05%.
The preparation method of the aluminium alloy, includes the following steps:
Step S1: carrying out alloy melting by mentioned component proportion, and the alloy melting temp is 735 DEG C, keeps the temperature 10 minutes, obtains
Alloy molten solution one；
Step S2: being added refining agent in gained alloy molten solution one and refined, and the temperature of the refining is 735 DEG C, and the time is
12 minutes, obtain alloy molten solution two；
Step S3: the alloy molten solution two is cooled down, and is squeezed, is obtained ingot casting；
Step S4: being warming up to 450 DEG C for the ingot casting with the speed of 0.72 DEG C/min, keeps the temperature 10 hours at a temperature of 450 DEG C, into
Row Homogenization Treatments；
Step S5: keeping the temperature 1 hour under the conditions of 360 DEG C for the ingot casting after Homogenization Treatments, is warming up to 420 DEG C of progress hot rollings, heat
Temperature is rolled not less than 370 DEG C；
Step S6: the alloy material after hot rolling is heated to 495 DEG C, keeps the temperature 6h, then water quenching to room temperature；
Step S7: the alloy material after solution treatment is subjected to ageing treatment, obtains aluminum alloy materials.
The refining agent is made of the raw material of following weight parts: 53 parts of two carbon of chlordeneization, 18 parts of potassium chloride, bentonite 26
Part.The dosage of refining agent is the 0.45% of aluminium alloy gross mass.
The temperature of the ageing treatment is 175 DEG C, time 9h.
Embodiment 3
The portable aerial work platform structure of the present embodiment is substantially the same manner as Example 1, the difference is that wherein:
The aluminium alloy is made of the ingredient of following mass percents:
Mg:2.2%；
Si:3.6%；
Mn:0.23%；
Cr:0.12%；
Zr:0.20%；
Ti:0.36%；
Yb:0.18%；
Surplus is the impurity of Al and content≤0.05%.
The preparation method of the aluminium alloy, includes the following steps:
Step S1: carrying out alloy melting by mentioned component proportion, and the alloy melting temp is 725 DEG C, keeps the temperature 12 minutes, obtains
Alloy molten solution one；
Step S2: being added refining agent in gained alloy molten solution one and refined, and the temperature of the refining is 732 DEG C, and the time is
15 minutes, obtain alloy molten solution two；
Step S3: the alloy molten solution two is cooled down, and is squeezed, is obtained ingot casting；
Step S4: being warming up to 450 DEG C for the ingot casting with the speed of 0.72 DEG C/min, keeps the temperature 10 hours at a temperature of 450 DEG C, into
Row Homogenization Treatments；
Step S5: keeping the temperature 1.2 hours under the conditions of 360 DEG C for the ingot casting after Homogenization Treatments, be warming up to 420 DEG C of progress hot rollings,
Hot-rolled temperature is not less than 370 DEG C；
Step S6: the alloy material after hot rolling is heated to 490 DEG C, keeps the temperature 5h, then water quenching to room temperature；
Step S7: the alloy material after solution treatment is subjected to ageing treatment, obtains aluminum alloy materials.
The refining agent is made of the raw material of following weight parts: 58 parts of two carbon of chlordeneization, 12 parts of potassium chloride, bentonite 28
Part.The dosage of refining agent is the 0.50% of aluminium alloy gross mass.
The temperature of the ageing treatment is 170 DEG C, time 7h.
Embodiment 4
The portable aerial work platform structure of the present embodiment is substantially the same manner as Example 1, the difference is that wherein:
The aluminium alloy is made of the ingredient of following mass percents:
Mg:3.0%；
Si:4.3%；
Mn:0.28%；
Cr:0.18%；
Zr:0.24%；
Ti:0.39%；
Yb:0.28%；
Surplus is the impurity of Al and content≤0.05%.
The preparation method of the aluminium alloy, includes the following steps:
Step S1: carrying out alloy melting by mentioned component proportion, and the alloy melting temp is 720 DEG C, keeps the temperature 12 minutes, obtains
Alloy molten solution one；
Step S2: being added refining agent in gained alloy molten solution one and refined, and the temperature of the refining is 730 DEG C, and the time is
15 minutes, obtain alloy molten solution two；
Step S3: the alloy molten solution two is cooled down, and is squeezed, is obtained ingot casting；
Step S4: being warming up to 450 DEG C for the ingot casting with the speed of 0.72 DEG C/min, keeps the temperature 10 hours at a temperature of 450 DEG C, into
Row Homogenization Treatments；
Step S5: keeping the temperature 1.2 hours under the conditions of 360 DEG C for the ingot casting after Homogenization Treatments, be warming up to 420 DEG C of progress hot rollings,
Hot-rolled temperature is not less than 370 DEG C；
Step S6: the alloy material after hot rolling is heated to 495 DEG C, keeps the temperature 6h, then water quenching to room temperature；
Step S7: the alloy material after solution treatment is subjected to ageing treatment, obtains aluminum alloy materials.
The refining agent is made of the raw material of following weight parts: 52 parts of two carbon of chlordeneization, 18 parts of potassium chloride, bentonite 23
Part.
The temperature of the ageing treatment is 172 DEG C, time 8h.
Embodiment 5
The portable aerial work platform structure of the present embodiment is substantially the same manner as Example 1, the difference is that wherein:
The aluminium alloy is made of the ingredient of following mass percents:
Mg:2.1%；
Si:3.7%；
Mn:0.21%；
Cr:0.11%；
Zr:0.20%；
Ti:0.37%；
Yb:0.20%；
Surplus is the impurity of Al and content≤0.05%.
The preparation method of the aluminium alloy, includes the following steps:
Step S1: carrying out alloy melting by mentioned component proportion, and the alloy melting temp is 740 DEG C, keeps the temperature 10 minutes, obtains
Alloy molten solution one；
Step S2: being added refining agent in gained alloy molten solution one and refined, and the temperature of the refining is 730 DEG C, and the time is
15 minutes, obtain alloy molten solution two；
Step S3: the alloy molten solution two is cooled down, and is squeezed, is obtained ingot casting；
Step S4: being warming up to 450 DEG C for the ingot casting with the speed of 0.72 DEG C/min, keeps the temperature 10 hours at a temperature of 450 DEG C, into
Row Homogenization Treatments；
Step S5: keeping the temperature 1 hour under the conditions of 360 DEG C for the ingot casting after Homogenization Treatments, is warming up to 420 DEG C of progress hot rollings, heat
Temperature is rolled not less than 370 DEG C；
Step S6: the alloy material after hot rolling is heated to 485 DEG C, keeps the temperature 7h, then water quenching to room temperature；
Step S7: the alloy material after solution treatment is subjected to ageing treatment, obtains aluminum alloy materials.
The refining agent is made of the raw material of following weight parts: 50 parts of two carbon of chlordeneization, 20 parts of potassium chloride, bentonite 20
Part.
The temperature of the ageing treatment is 180 DEG C, time 6h.
Embodiment 6
The portable aerial work platform structure of the present embodiment is substantially the same manner as Example 1, the difference is that wherein:
The aluminium alloy is made of the ingredient of following mass percents:
Mg:2.0%；
Si:3.5%；
Mn:0.2%；
Cr:0.1%；
Zr:0.18%；
Ti:0.35%；
Yb:0.15%；
Surplus is the impurity of Al and content≤0.05%.
The preparation method of the aluminium alloy, includes the following steps:
Step S1: carrying out alloy melting by mentioned component proportion, and the alloy melting temp is 740 DEG C, keeps the temperature 10 minutes, obtains
Alloy molten solution one；
Step S2: being added refining agent in gained alloy molten solution one and refined, and the temperature of the refining is 740 DEG C, and the time is
10 minutes, obtain alloy molten solution two；
Step S3: the alloy molten solution two is cooled down, and is squeezed, is obtained ingot casting；
Step S4: being warming up to 450 DEG C for the ingot casting with the speed of 0.72 DEG C/min, keeps the temperature 10 hours at a temperature of 450 DEG C, into
Row Homogenization Treatments；
Step S5: keeping the temperature 1 hour under the conditions of 360 DEG C for the ingot casting after Homogenization Treatments, is warming up to 420 DEG C of progress hot rollings, heat
Temperature is rolled not less than 370 DEG C；
Step S6: the alloy material after hot rolling is heated to 500 DEG C, keeps the temperature 5h, then water quenching to room temperature；
Step S7: the alloy material after solution treatment is subjected to ageing treatment, obtains aluminum alloy materials.
The refining agent is made of the raw material of following weight parts: 60 parts of two carbon of chlordeneization, 10 parts of potassium chloride, bentonite 30
Part.
The temperature of the ageing treatment is 165 DEG C, time 10h.
Embodiment 7
The portable aerial work platform structure of the present embodiment is substantially the same manner as Example 1, the difference is that wherein:
The aluminium alloy is made of the ingredient of following mass percents:
Mg:3.2%；
Si:4.5%；
Mn:0.3%；
Cr:0.2%；
Zr:0.25%；
Ti:0.40%；
Yb:0.30%；
Surplus is the impurity of Al and content≤0.05%.
The preparation method of the aluminium alloy is refering to embodiment 4.
Comparative example 1: ingredient Yb is omitted
The portable aerial work platform structure of this comparative example is substantially the same manner as Example 1, the difference is that wherein:
The aluminium alloy is made of the ingredient of following mass percents:
Mg:2.5%；
Si:3.8%；
Mn:0.25%；
Cr:0.14%；
Zr:0.21%；
Ti:0.36%；
Surplus is the impurity of Al and content≤0.05%.
Comparative example 2: change the mass percent of each ingredient
The portable aerial work platform structure of this comparative example is substantially the same manner as Example 1, the difference is that wherein:
The aluminium alloy is made of the ingredient of following mass percents:
Mg:3.5%；
Si:2.0%；
Mn:0.4%；
Cr:0.3%；
Zr:0.15%；
Ti:0.2%；
Yb:0.1%；
Surplus is the impurity of Al and content≤0.05%.
Comparative example 3: change the mass percent of each ingredient
The portable aerial work platform structure of this comparative example is substantially the same manner as Example 1, the difference is that wherein:
The aluminium alloy is made of the ingredient of following mass percents:
Mg:1.5%；
Si:3.0%；
Mn:0.5%；
Cr:0.25%；
Zr:0.3%；
Ti:0.5%；
Yb:0.35%；
Surplus is the impurity of Al and content≤0.05%.
Comparative example 4: ingredient Zr and Yb are omitted
The portable aerial work platform structure of this comparative example is substantially the same manner as Example 1, the difference is that wherein:
The aluminium alloy is made of the ingredient of following mass percents:
Mg:2.5%；
Si:3.8%；
Mn:0.25%；
Cr:0.14%；
Ti:0.36%；
Surplus is the impurity of Al and content≤0.05%.
Comparative example 5: increase 6.0wt.% Zn
The portable aerial work platform structure of this comparative example is substantially the same manner as Example 1, the difference is that wherein:
The aluminium alloy is made of the ingredient of following mass percents:
Zn:6.0%；
Mg:2.5%；
Si:3.8%；
Mn:0.25%；
Cr:0.14%；
Zr:0.21%；
Ti:0.36%；
Yb:0.23%；
Surplus is the impurity of Al and content≤0.05%.
Comparative example 6: increase 6.0wt.% Zn and 2.0wt.%Cu
The portable aerial work platform structure of this comparative example is substantially the same manner as Example 1, the difference is that wherein:
The aluminium alloy is made of the ingredient of following mass percents:
Zn:6.0%；
Cu:2.0%；
Mg:2.5%；
Si:3.8%；
Mn:0.25%；
Cr:0.14%；
Zr:0.21%；
Ti:0.36%；
Yb:0.23%；
Surplus is the impurity of Al and content≤0.05%.
Comparative example 7
The portable aerial work platform structure of this comparative example is substantially the same manner as Example 1, the difference is that the system of the aluminium alloy
In Preparation Method:
Step S2 replacement are as follows: refining agent is added in gained alloy molten solution one and is refined, the temperature of the refining is 720 DEG C,
Time is 25 minutes, obtains alloy molten solution two；
Wherein, the refining agent is two carbon of chlordeneization, and dosage is the 0.50% of aluminium alloy gross mass.
Comparative example 8
The portable aerial work platform structure of this comparative example is substantially the same manner as Example 1, the difference is that the system of the aluminium alloy
In Preparation Method:
Step S2 replacement are as follows: refining agent is added in gained alloy molten solution one and is refined, the temperature of the refining is 730 DEG C,
Time is 20 minutes, obtains alloy molten solution two；
Wherein, the mixture that the refining agent is made of two carbon of chlordeneization and potassium chloride with mass ratio 3:1, dosage are that aluminium alloy is total
The 0.45% of quality.
Comparative example 9
The portable aerial work platform structure of this comparative example is substantially the same manner as Example 1, the difference is that the system of the aluminium alloy
In Preparation Method:
Step S2 replacement are as follows: refining agent is added in gained alloy molten solution one and is refined, the temperature of the refining is 740 DEG C,
Time is 18 minutes, obtains alloy molten solution two；
Wherein, the mixture that the refining agent is made of two carbon of chlordeneization, potassium chloride and bentonite with mass ratio 1:1:1, dosage
It is the 0.48% of aluminium alloy gross mass.
Comparative example 10
The portable aerial work platform structure of this comparative example is substantially the same manner as Example 1, the difference is that the system of the aluminium alloy
In Preparation Method:
Step S4 replacement are as follows: the ingot casting is warming up to 450 DEG C with the speed of 0.60 DEG C/min, keeps the temperature 24 at a temperature of 450 DEG C
Hour, carry out Homogenization Treatments.
Product effect and performance evaluation:
The embodiment of the present invention 1~3 and 1~10 gained aluminium alloy of comparative example are performed the following performance tests:
Tensile mechanical properties experiment: it at 25 DEG C of room temperature, using newly CMT-5105 microcomputer controlled electronic universal tester is thought carefully, draws
It stretches sample standard component to prepare according to national standard GB/T228-2002, tensile test specimen scale distance 50mm, gauge length interior diameter is 5mm, test
It is stretched using at the uniform velocity monodisplacement, rate of extension 3mm/s, GB/T228.1-2010 metal material stretching test part 1: room
Warm test method, measurement result are shown in Table 1.
The Brinell hardness of sample is measured by Wilson Wilson's Brinell hardness tester, pressure ball diameter, pressure and duration
Respectively 5mm, 750kgf and 20s, referring to GB/T231.1-2009 metal material Brinell hardness test part 1: test method,
Measurement result is shown in Table 1.
Weight-loss corrosion rate test: GB10124-88 Uniform Corrosion Method of Laboratory Immersion Test method: line is used
The parallel corrosion samples of cutting preparation 3, height of specimen 4mm, diameter of phi 12mm, using ultrasonic cleaning after sanding and polishing, with analysis
Balance is weighed as M respectively0, parallel corrosion sample is placed at 25 DEG C of constant temperature, corrode respectively in the NaCl solution of 3.5wt% 240h,
360h, 480h, 540h, sample is rinsed well with clear water after corrosion, then uses CrO3、H3PO4It is protected with pure water mixed solution in 80 DEG C
Temperature cleaning 5 minutes, removes the corrosion product of sample surfaces.Sample ultrapure water after cleaning is clean, it uses and divides after drying
Analysis balance weighs up the weight M after corrosion respectively, and measurement result is shown in Table 2.The calculation formula of weight-loss corrosion rate:
Rcorrosion rate=8.76×107× (M-M0)/(S × T × D),
Rcorrosion rateCorrosion rate, mm/a；
M0Sample mass before test, g；Test mass after M- test, g；The gross area of S- sample, cm2；T- test period,
h；D- density of material, kg/m3。
The Measuring Mechanical Properties result of 1 aluminium alloy of table
Table 1 the results show that the tensile strength of present invention gained aluminium alloy in 410 Mpa or more, yield strength in 310Mpa or more,
Elongation percentage is 15.1~16.3%, and hardness is 390 or more.1) comparative example 1, the performance and phase of the present invention of 4 gained aluminium alloy of comparative example
Than, in figure 5 it can be seen that mechanicalness of the addition 0.15~0.3wt. %Yb and/or 0.18~0.25 wt. %Zr to aluminium alloy of the present invention
Can there are important influence, Yb and/or Zr to cooperate with each ingredient, play the remarkable result of enhancing tension；2) 2~3 institute of comparative example
The performance of aluminium alloy is obtained compared with the present invention, in figure 5 it can be seen that each component content proportion of aluminium alloy of the present invention is appropriate, obtains to the present invention
The aluminium alloy for obtaining very good mechanical properties has obvious action；3) performance and phase of the present invention of 5~6 gained aluminium alloy of comparative example
Than, in figure 5 it can be seen that each ingredient collocation of aluminium alloy of the present invention is appropriate, has to the aluminium alloy that the present invention obtains very good mechanical properties aobvious
The effect of work；4) performance of 7~9 gained aluminium alloy of comparative example is compared with the present invention, in figure 5 it can be seen that aluminium alloy of the present invention prepares institute
The refining agent of use cooperates with, prepared by the refining suitable for aluminium alloy of the present invention；4) performance of 10 gained aluminium alloy of comparative example and sheet
Invention is compared, in figure 5 it can be seen that heating rate and soaking time in Homogenization Treatments step used by prepared by aluminium alloy of the present invention,
The aluminium alloy haveing excellent performance to acquisition plays an important role.
2 3.5wt%NaCl solution difference of table corrodes the corrosion rate of aluminium alloy under duration
Table 2 is as the result is shown: present invention gained aluminium alloy is corroded in 3.5wt%NaCl solution, and corrosion rate exists when 240h
0.05 mm/a is hereinafter, the extension corrosion rate with the time reduces, while occurring being basically stable at 0.02mm/ after 360h
a.Compare comparative example 1~10 it can be seen that, corrosion rate when 240h has different degrees of increase, although with the extension of time
Corrosion rate is reducing, but corrosion rate value just gradually tends to be steady after 480h, and is still maintained at
0.03mm/a or more.The above results show the excellent anti-corrosion performance of aluminium alloy of the present invention, and each ingredient and content collocation are closed
It is suitable, obvious synergy.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of portable aerial work platform, it is characterised in that: including platform body, setting platform body side for pair
The retention mechanism that platform body is fixed, be arranged below the platform body and with the auxiliary support mechanism, setting exist
Disassembly platform on the platform body is arranged in the seat modular on the platform body, and is arranged in the fastening machine
Balance mechanism on structure；
The retention mechanism includes the bridge joint block being connected with the platform body, first armful to be connected with the bridge joint block
Hoop, is arranged in the locking belt of first anchor ear one end, the fixed column on the first anchor ear other end is arranged in；Setting is in institute
State the first anchor ear lower surface for Auxiliary support and auxiliary support plate, the pressure sensing on the auxiliary support plate is set
Device；
The auxiliary support mechanism includes auxiliary clamp module, more Auxiliary supports being connected with the auxiliary clamp module
Bar, the more auxiliary support bars are connected with platform body, and the balance module on the platform body lower surface is arranged in；
The dismounting platform includes dismounting plate, and the support column of the dismounting plate lower surface, the support column passes through rotating member and institute
Platform body is stated to be connected；
The balance mechanism includes the tilting bar being connected with first anchor ear, and the balance of the tilt rod end is arranged in
The clump weight of the balance bar ends is arranged in bar；
The platform body, retention mechanism, auxiliary support mechanism, disassembly platform, the tilting bar are articles made of aluminium alloy, described
Aluminium alloy is made of the ingredient of following mass percents:
Mg:2.0~3.2%；
Si:3.5~4.5%；
Mn:0.2~0.3%；
Cr:0.1~0.2%；
Zr:0.18~0.25%；
Ti:0.35~0.40%；
Yb:0.15~0.3%；
Surplus is the impurity of Al and content≤0.05%.
2. portable aerial work platform as described in claim 1, it is characterised in that: the seat modular includes seat sheet
The support column on the seat body lower surface is arranged in body, and the support column is connected by rotating member with platform body, with
And the safety belt in the seat body is set.
3. portable aerial work platform as claimed in claim 2, it is characterised in that: the balance module includes that MEMS accelerates
Meter and MEMS gyroscope.
4. portable aerial work platform as claimed in claim 3, it is characterised in that: first anchor ear and the second anchor ear end
Portion is connected by hinge.
5. portable aerial work platform as claimed in claim 4, it is characterised in that: the auxiliary clamp module includes auxiliary
Anchor ear, with the fastening straps that auxiliary anchor ear one end is arranged in, fixation hole, the auxiliary anchor ear other end is arranged in the fastening straps front
The fixed pin of setting.
6. portable aerial work platform as claimed in claim 5, it is characterised in that: the aluminium alloy is by following quality percentages
Several ingredients are made:
Mg:2.5%；
Si:3.8%；
Mn:0.25%；
Cr:0.14%；
Zr:0.21%；
Ti:0.36%；
Yb:0.23%；
Surplus is the impurity of Al and content≤0.05%.
7. portable aerial work platform as claimed in claim 6, it is characterised in that: it is characterized by: the aluminium alloy
Preparation method includes the following steps:
Step S1: carrying out alloy melting by composition proportion, and the alloy melting temp is 720 DEG C -750 DEG C, keeps the temperature 10~12 points
Clock obtains alloy molten solution one；
Step S2: being added refining agent in gained alloy molten solution one and refined, and the temperature of the refining is 730~740 DEG C, when
Between be 10~15 minutes, obtain alloy molten solution two；
Step S3: the alloy molten solution two is cooling, it squeezes, obtains ingot casting；
Step S4: being warming up to 450 DEG C for the ingot casting with the speed of 0.72 DEG C/min, and it is small that 10~12 are kept the temperature at a temperature of 450 DEG C
When, carry out Homogenization Treatments；
Step S5: keeping the temperature 1~1.2 hour under the conditions of 360 DEG C for the ingot casting after Homogenization Treatments, is warming up to 420 DEG C of progress heat
It rolls, hot-rolled temperature is not less than 370 DEG C；
Step S6: the alloy material after hot rolling is heated to 485~500 DEG C, keeps the temperature 5~7h, then water quenching to room temperature；
Step S7: the alloy material after solution treatment is subjected to ageing treatment, obtains aluminum alloy materials.
8. portable aerial work platform as claimed in claim 7, it is characterised in that: the refining agent is by following weight parts
Raw material is made: 50~60 parts of two carbon of chlordeneization, 10~20 parts of potassium chloride, 20~30 parts of bentonite.
9. portable aerial work platform as claimed in claim 8, it is characterised in that: the temperature of the ageing treatment is 165
~180 DEG C, the time is 6~10h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710769168.2A CN109428285A (en) | 2017-08-31 | 2017-08-31 | A kind of portable aerial work platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710769168.2A CN109428285A (en) | 2017-08-31 | 2017-08-31 | A kind of portable aerial work platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109428285A true CN109428285A (en) | 2019-03-05 |
Family
ID=65504621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710769168.2A Pending CN109428285A (en) | 2017-08-31 | 2017-08-31 | A kind of portable aerial work platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109428285A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101237128A (en) * | 2008-02-20 | 2008-08-06 | 中铁十局集团有限公司 | A line pole operation chair |
| CN101407876A (en) * | 2008-09-17 | 2009-04-15 | 北京有色金属研究总院 | Aluminum alloy material for manufacturing large cross section main load-carrying structure member and preparation thereof |
| CN101597709A (en) * | 2008-10-23 | 2009-12-09 | 无锡麟龙铝业有限公司 | A kind of environmentally friendly cast aluminium alloy and manufacture method thereof |
| CN201887378U (en) * | 2010-11-08 | 2011-06-29 | 河南省电力公司南阳供电公司 | Auxiliary working rack for transmission line pole or tower maintenance |
| CN103138204A (en) * | 2013-03-07 | 2013-06-05 | 宁夏电力公司吴忠供电局 | Multifunctional installing rack used for replacing tension cross arm |
| CN203850744U (en) * | 2014-04-02 | 2014-09-24 | 国家电网公司 | Live working special tool for pluggable cable terminal |
| CN205452972U (en) * | 2016-03-29 | 2016-08-10 | 国家电网公司 | Liftable wire barrow |
-
2017
- 2017-08-31 CN CN201710769168.2A patent/CN109428285A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101237128A (en) * | 2008-02-20 | 2008-08-06 | 中铁十局集团有限公司 | A line pole operation chair |
| CN101407876A (en) * | 2008-09-17 | 2009-04-15 | 北京有色金属研究总院 | Aluminum alloy material for manufacturing large cross section main load-carrying structure member and preparation thereof |
| CN101597709A (en) * | 2008-10-23 | 2009-12-09 | 无锡麟龙铝业有限公司 | A kind of environmentally friendly cast aluminium alloy and manufacture method thereof |
| CN201887378U (en) * | 2010-11-08 | 2011-06-29 | 河南省电力公司南阳供电公司 | Auxiliary working rack for transmission line pole or tower maintenance |
| CN103138204A (en) * | 2013-03-07 | 2013-06-05 | 宁夏电力公司吴忠供电局 | Multifunctional installing rack used for replacing tension cross arm |
| CN203850744U (en) * | 2014-04-02 | 2014-09-24 | 国家电网公司 | Live working special tool for pluggable cable terminal |
| CN205452972U (en) * | 2016-03-29 | 2016-08-10 | 国家电网公司 | Liftable wire barrow |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107740567A (en) | Power equipment maintaining operating platform | |
| EP3896183A1 (en) | Lightweight high-entropy alloy having high strength and high plasticity and preparation method therefor | |
| Xu et al. | The effect of pre-ageing temperature and retrogression heating rate on the strength and corrosion behaviour of AA7150 | |
| CN107492859A (en) | A kind of high-tension cable supporting apparatus | |
| CN101903546A (en) | Rolled product made of aluminum-lithium alloy for aeronautical applications | |
| US8333853B2 (en) | Aging of aluminum alloys for improved combination of fatigue performance and strength | |
| CN107544538A (en) | Hydrophobicity of Composite Insulator detection positioner and method based on unmanned plane | |
| Tan et al. | Measurements of γ/γ'lattice misfit and γ'volume fraction for a Ru-containing nickel-based single crystal superalloy | |
| CN101886188A (en) | Beta titanium alloy and preparation method thereof | |
| CN104694797A (en) | Al-Mg-Zn alloy | |
| Xu et al. | Effect of globularization behavior of the lamellar alpha on tensile properties of Ti-17 alloy | |
| CN109428285A (en) | A kind of portable aerial work platform | |
| CN107681287A (en) | Electric rotary-type high-potting earthing pole | |
| CN106244875B (en) | 7 line aluminium alloys of one kind and preparation method thereof | |
| CN106319404A (en) | Three stage aging heat treatment method for aluminum alloy | |
| Yan et al. | Microstructures and mechanical properties of cold rolled Mg-8Li and Mg-8Li-2Al-2RE alloys | |
| CN107558721A (en) | A kind of electric energy meter tears platform open | |
| CN104762526A (en) | Low-cost and high-strength Ti-Zr-Al-F2 alloy | |
| CN107528387A (en) | The real-time inspection device of multichannel optical fiber | |
| CN108020311A (en) | Device for peeling is exempted from a kind of counterweight loading of electronic crane scale | |
| CN107555325A (en) | A kind of transmission line of electricity O＆M boom hoisting | |
| Sun et al. | Effects of Bi and Ce addition on tensile properties and corrosion resistance of Zn-15Al alloys by continuous casting and extrusion | |
| CN105599791A (en) | Wire pole transport cart | |
| CN107565233A (en) | A kind of clamp for ground wire component for transmission line of electricity | |
| CN109652690A (en) | A kind of aluminum-magnesium alloy wire rod and preparation method thereof for high voltage power cable gantry |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190305 |
|
| RJ01 | Rejection of invention patent application after publication |