CN112709515A - Pouring type high-shearing force electrophoresis heat insulation section bar - Google Patents
Pouring type high-shearing force electrophoresis heat insulation section bar Download PDFInfo
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- CN112709515A CN112709515A CN202011583405.4A CN202011583405A CN112709515A CN 112709515 A CN112709515 A CN 112709515A CN 202011583405 A CN202011583405 A CN 202011583405A CN 112709515 A CN112709515 A CN 112709515A
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- profile
- electrophoretic
- connector
- base body
- section bar
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- 238000009413 insulation Methods 0.000 title claims abstract description 47
- 238000001962 electrophoresis Methods 0.000 title claims abstract description 28
- 238000010008 shearing Methods 0.000 title abstract description 3
- 239000003973 paint Substances 0.000 claims abstract description 40
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 24
- 230000003647 oxidation Effects 0.000 claims description 38
- 238000007254 oxidation reaction Methods 0.000 claims description 38
- 239000011159 matrix material Substances 0.000 claims description 34
- 239000007788 liquid Substances 0.000 claims description 26
- 238000002360 preparation method Methods 0.000 claims description 20
- 229910045601 alloy Inorganic materials 0.000 claims description 16
- 239000000956 alloy Substances 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 16
- 239000011248 coating agent Substances 0.000 claims description 12
- 238000000576 coating method Methods 0.000 claims description 12
- 238000002844 melting Methods 0.000 claims description 12
- 230000008018 melting Effects 0.000 claims description 12
- LWIHDJKSTIGBAC-UHFFFAOYSA-K potassium phosphate Substances [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- LCTONWCANYUPML-UHFFFAOYSA-N Pyruvic acid Chemical compound CC(=O)C(O)=O LCTONWCANYUPML-UHFFFAOYSA-N 0.000 claims description 8
- 238000003723 Smelting Methods 0.000 claims description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 8
- 229910001430 chromium ion Inorganic materials 0.000 claims description 8
- 239000008367 deionised water Substances 0.000 claims description 8
- 229910021641 deionized water Inorganic materials 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 8
- 239000012266 salt solution Substances 0.000 claims description 8
- 238000005406 washing Methods 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000000835 fiber Substances 0.000 claims description 7
- 229910052750 molybdenum Inorganic materials 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 7
- 229910052702 rhenium Inorganic materials 0.000 claims description 7
- 229910052719 titanium Inorganic materials 0.000 claims description 7
- 229910052726 zirconium Inorganic materials 0.000 claims description 7
- 239000006260 foam Substances 0.000 claims description 6
- 239000011651 chromium Substances 0.000 claims description 5
- 239000000654 additive Substances 0.000 claims description 4
- 230000000996 additive effect Effects 0.000 claims description 4
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 4
- SWLVFNYSXGMGBS-UHFFFAOYSA-N ammonium bromide Chemical compound [NH4+].[Br-] SWLVFNYSXGMGBS-UHFFFAOYSA-N 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- GRWVQDDAKZFPFI-UHFFFAOYSA-H chromium(III) sulfate Chemical compound [Cr+3].[Cr+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GRWVQDDAKZFPFI-UHFFFAOYSA-H 0.000 claims description 4
- ZPWVASYFFYYZEW-UHFFFAOYSA-L dipotassium hydrogen phosphate Chemical compound [K+].[K+].OP([O-])([O-])=O ZPWVASYFFYYZEW-UHFFFAOYSA-L 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 238000011049 filling Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 4
- 150000002500 ions Chemical class 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 4
- 239000011259 mixed solution Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229910000402 monopotassium phosphate Inorganic materials 0.000 claims description 4
- 235000019796 monopotassium phosphate Nutrition 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 229910000160 potassium phosphate Inorganic materials 0.000 claims description 4
- 235000011009 potassium phosphates Nutrition 0.000 claims description 4
- 229940107700 pyruvic acid Drugs 0.000 claims description 4
- 239000000243 solution Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 238000003805 vibration mixing Methods 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 2
- 241001330002 Bambuseae Species 0.000 claims description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 2
- 239000011425 bamboo Substances 0.000 claims description 2
- GNSKLFRGEWLPPA-UHFFFAOYSA-M potassium dihydrogen phosphate Chemical compound [K+].OP(O)([O-])=O GNSKLFRGEWLPPA-UHFFFAOYSA-M 0.000 claims description 2
- 238000005266 casting Methods 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 9
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 238000003825 pressing Methods 0.000 description 5
- 239000006104 solid solution Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910000396 dipotassium phosphate Inorganic materials 0.000 description 2
- 235000019797 dipotassium phosphate Nutrition 0.000 description 2
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000010301 surface-oxidation reaction Methods 0.000 description 2
- 208000034656 Contusions Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000010407 anodic oxide Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 208000034526 bruise Diseases 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/04—Wing frames not characterised by the manner of movement
- E06B3/263—Frames with special provision for insulation
- E06B3/26301—Frames with special provision for insulation with prefabricated insulating strips between two metal section members
-
- 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
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
-
- 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
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
- C22C1/1047—Alloys containing non-metals starting from a melt by mixing and casting liquid metal matrix composites
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/024—Anodisation under pulsed or modulated current or potential
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/06—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used
- C25D11/08—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used containing inorganic acids
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/06—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used
- C25D11/10—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used containing organic acids
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D13/00—Electrophoretic coating characterised by the process
- C25D13/04—Electrophoretic coating characterised by the process with organic material
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/78—Heat insulating elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/36—Columns; Pillars; Struts of materials not covered by groups E04C3/32 or E04C3/34; of a combination of two or more materials
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0408—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0426—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
- E04C2003/043—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the hollow cross-section comprising at least one enclosed cavity
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
- E04C2003/046—L- or T-shaped
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Architecture (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Composite Materials (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
The invention relates to a pouring type high-shearing force electrophoresis heat-insulation section bar, which comprises a section bar base body, wherein a vertical connector is arranged on one side of the section bar base body, and a horizontal connector is arranged on the other side of the section bar base body; a circular through hole is formed in the middle of the profile base body, square through holes are formed in the periphery of the prototype through hole, an inner connecting through hole is formed in the joint of the profile base body and the vertical connecting body, and an outer connecting through hole is formed in the joint of the profile base body and the horizontal connecting body; according to the casting type high-shear electrophoretic heat insulation profile, the heat insulation layers made of different materials are filled in the combined aluminum alloy profile, so that the high-efficiency heat insulation of the aluminum alloy profile is realized, the heat insulation of the aluminum alloy profile can be obviously improved, the aluminum alloy is obtained through casting, the surface of the aluminum alloy profile is coated with the paint film in an electrophoretic mode, the uniformity of the thickness of the paint film is ensured, the high shear of the aluminum alloy base material is ensured through a specific structural design, and the casting type high-shear electrophoretic heat insulation profile has good market prospect and practical value.
Description
Technical Field
The invention belongs to the technical field of sectional materials for buildings, and particularly relates to a pouring type high-shear electrophoretic heat-insulation sectional material.
Background
Patent CN201420344759 discloses a high-strength heat insulation section bar, one side of the heat insulation section bar opposite to first aluminum section bar and second aluminum section bar is respectively provided with at least one fixing foot, the outer end face of the fixing foot is provided with a positioning face of indent or evagination, both sides of the heat insulation section bar are respectively provided with a reinforcing plate, the reinforcing plate and the heat insulation section bar are connected through at least one wire column, and the inside of the heat insulation section bar is a cavity structure. Has the characteristics of high strength and good heat resistance.
The rectangular channel that is big-end-up between two fixed feet about this patent, two brace rods can't insert in the big-end-up dovetail between two fixed feet outside the big-end-up outside the metal sectional material middle part outside the big-end-up, can only vertically insert, to the architectural shape of standard 6 meters length, can't solve the seam clearance problem of wearing between two brace rods and two fixed feet from top to bottom about big-end-up, easily cause metal sectional material and thermal-insulated section bar to wear to close the difficulty.
When the upper and lower pressing plates with pressing inclined planes of the metal section are pressed on the upper and lower dovetail-shaped inclined planes of the heat insulation section and the side pressing rollers are pressed on the metal section, the upper and lower support ribs with small inside and small outside of the metal section move towards the dovetail groove with large inside and small outside of the heat insulation section, and a pressing moving gap is formed between the upper and lower support ribs with large outside and small inside of the metal section and the dovetail groove with large inside and small outside of the heat insulation section, so that the pressing is not tight, the upper and lower fixing feet deform, internal stress is generated, the service life of a product is shortened, and the root parts of the upper and lower fixing feet.
In addition, the aluminum alloy section is directly painted, so that the thickness of a paint film on the surface of the aluminum alloy is uneven, the paint film easily falls and cannot play a role in protection, and the problems encountered by painting in other modes are solved.
Disclosure of Invention
The invention aims to provide a pouring type high-shear electrophoretic heat-insulation section, an anodic oxide film obtained by the process can not only meet the decoration effect of common anodic oxidation, but also has higher hardness, better scratch resistance, bruise resistance and corrosion resistance and can improve the experience value of customers compared with the common anodic oxidation process.
In order to achieve the above purpose, the invention provides the following technical scheme:
a pouring type high-shear electrophoresis heat-insulation section comprises a section base body, wherein a vertical connector is arranged on one side of the section base body, and a horizontal connector is arranged on the other side of the section base body; a circular through hole is formed in the middle of the profile base body, square through holes are formed in the periphery of the prototype through hole, an inner connecting through hole is formed in the joint of the profile base body and the vertical connecting body, and an outer connecting through hole is formed in the joint of the profile base body and the horizontal connecting body; the inside of circular through-hole is filled with the honeycomb insulating layer, and the surface parcel of honeycomb insulating layer has a ceramic heat insulating section of thick bamboo, and the inside of square through-hole is filled with the air insulating layer, and the inside fibre insulating layer that is filled with of interconnection through-hole, the inside foam plastic insulating layer that is filled with of outer connecting through-hole.
Preferably, the heat insulation profile contains the following elements in percentage by weight based on the total amount of the aluminum alloy profile: cr 2.75-5.55%, Mo 0.65-1.45%, W0.55-1.15%, Si 0.18-0.54%, Re 0.09-0.25%, Ti 0.12-0.36%, Zr 0.08-0.21%, Fe 0.12-0.24%, B0.06-0.12%, Ge 0.05-0.13%, Cu 0.11-0.15%, nano SiN 0.08-0.18%, nano SiC 0.09-0.21%, and the balance of Al and inevitable impurities.
Preferably, the preparation method of the cast high-shear electrophoretic thermal insulation profile comprises the following specific steps:
(1) melting: putting pure Al of the heat insulation section into an electromagnetic smelting crucible according to a proportion, starting a vacuum system for vacuumizing until the vacuum degree reaches 5-10 KPa, heating the pure Al to 750-850 ℃ by electromagnetic eddy current, smelting for 30-60 min, then cooling to 690-720 ℃, and preserving heat for 20-30 min to obtain molten Al;
(2) mixing and melting: heating molten Al to 1200-1500 ℃, adding Cr, Mo, W, Re, Ti, Zr, Fe, Ge and Cu in proportion, starting an ultrasonic vibration device to fully mix alloy molten liquid, then cooling to 800-1000 ℃ at the speed of 10-15 ℃/min, adding the rest B, Si, nano SiN and nano SiC, performing ultrasonic vibration mixing for 15-25 min again, adding a deslagging agent into the alloy molten liquid, and adjusting the components of the alloy molten liquid;
(3) pouring: keeping the temperature of the electromagnetic smelting crucible to 700-800 ℃, simultaneously keeping vacuumizing the crucible, further removing impurity gases in the device, and when the vacuum degree reaches 5-10 KPa; pouring the molten alloy liquid into a pouring mold of a specially-made section bar base body, a vertical connector and a horizontal connector, after pouring, air-cooling to 200-250 ℃ at the speed of 10-15 ℃/min, then carrying out solid solution treatment on the poured section bar base body, the vertical connector and the horizontal connector, after treatment, cooling to normal temperature at the speed of 10-15 ℃/min by water, and dismantling the mold;
(4) oxidation: placing the prepared anodic oxidation liquid into an anodic oxidation pond, placing the prepared salt solution containing chromium ions into a cathode pond, connecting the anodic oxidation pond and the cathode pond through an ion permeable membrane, obtaining a profile matrix, a vertical connector and a horizontal connector in the step (3) as an anode, and obtaining a profile matrix, a vertical connector and a horizontal connector which are corresponding to the profile matrix, the vertical connector and the horizontal connector, the surface of which is oxidized, as a cathode;
controlling the anodic oxidation temperature to be 10-40 ℃, the primary voltage to be 10-50V, the primary oxidation time to be 10-20 min, increasing the voltage to be 80-100V, and carrying out hard oxidation for 20-30 min, stirring by using air in the anodic oxidation process, and drying the oxidized section bar matrix, the vertical connector and the horizontal connector in a nitrogen oven;
(5) electrophoresis: placing the dried section bar matrix, the vertical connector and the horizontal connector in an electrophoresis tank filled with an electrophoresis coating for electrophoresis treatment, so that an electrophoresis paint coating film is formed on the surfaces of the section bar matrix, the vertical connector and the horizontal connector, the electrophoresis paint coating film is a semitransparent film layer, and washing the section bar matrix, the vertical connector and the horizontal connector twice at room temperature, wherein the washing time is 2-3 min each time; curing at 180-200 ℃ for 20-25 min to obtain finished products of the profile matrix, the vertical connector and the horizontal connector;
(6) assembling: and assembling the profile matrix, the vertical connector and the horizontal connector after electrophoresis, and filling the honeycomb heat-insulating layer, the ceramic heat-insulating cylinder, the fiber heat-insulating layer and the foam plastic heat-insulating layer to obtain the pouring type high-shear electrophoretic heat-insulating profile.
Further, in the step 4 of the preparation method, the anodic oxidation liquid is 80-120 g/L of pyruvic acid, 20-50 g/L of sulfuric acid, 5-15 g/L of ANODAL EE liquid additive, 10-20 g/L of dipotassium phosphate, 10-20 g/L of potassium dihydrogen phosphate, 30-50 g/L of aluminum sulfate, 20-30 g/L of artificial plasma and deionized water.
Further, the salt solution containing chromium ions in the step 4 of the preparation method is a mixed solution of 25-35 g/L of chromium sulfate, 10-15 g/L of potassium phosphate, 10-15 g/L of artificial plasma, 5-10 g/L of ammonium bromide and deionized water.
Further, the primary voltage in the step 4 of the preparation method is a voltage with sine function waveform conversion, the boosted voltage is a pulse voltage, and the duty ratio is 0.8-1.
Further, the electrophoretic paint in the step 5 of the preparation method comprises a gloss paint and a matting paint, the ratio of the gloss paint to the matting paint is 1-2: 2-3, and the thickness of the electrophoretic paint film is 15-25 um.
The invention has the following beneficial effects: according to the casting type high-shear electrophoretic heat insulation profile, the heat insulation layers made of different materials are filled in the combined aluminum alloy profile, so that the high-efficiency heat insulation of the aluminum alloy profile is realized, the heat insulation of the aluminum alloy profile can be obviously improved, the aluminum alloy is obtained through casting, the surface of the aluminum alloy profile is coated with the paint film in an electrophoretic mode, the uniformity of the thickness of the paint film is ensured, the high shear of the aluminum alloy base material is ensured through a specific structural design, and the casting type high-shear electrophoretic heat insulation profile has good market prospect and practical value.
Drawings
FIG. 1 is a schematic structural diagram of a cast high shear electrophoretic insulating profile of the present invention 1.
FIG. 2 is a schematic structural diagram of a cast high shear electrophoretic insulating profile of the present invention 2.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A pouring type high-shear electrophoresis heat-insulation section comprises a section base body 1, wherein a vertical connector 2 is arranged on one side of the section base body 1, and a horizontal connector 3 is arranged on the other side of the section base body 1; a circular through hole 4 is formed in the middle of the profile base body 1, square through holes 5 are formed around the prototype through hole 4, an inner connecting through hole 7 is formed at the joint of the profile base body 1 and the vertical connecting body 2, and an outer connecting through hole 6 is formed at the joint of the profile base body 1 and the horizontal connecting body 2; the round through hole 4 is filled with a honeycomb heat insulation layer 8, the outer surface of the honeycomb heat insulation layer 8 is wrapped with a ceramic heat insulation barrel 9, the square through hole 5 is filled with an air heat insulation layer 10, the inner connecting through hole 7 is filled with a fiber heat insulation layer 11, and the outer connecting through hole 6 is filled with a foam plastic heat insulation layer 12.
Further, the heat insulation section contains the following elements in percentage by weight based on the total amount of the aluminum alloy section: 5.55% of Cr, 1.45% of Mo, 1.15% of W, 0.54% of Si, 0.25% of Re, 0.36% of Ti, 0.21% of Zr, 0.24% of Fe, 0.12% of B, 0.13% of Ge, 0.15% of Cu, 0.18% of nano SiN and 0.21% of nano SiC, and the balance of Al and inevitable impurities.
Further, the preparation method of the casting type high-shear electrophoretic heat-insulation section comprises the following specific steps:
(1) melting: putting pure Al of the heat insulation section into an electromagnetic melting crucible according to a proportion, starting a vacuum system for vacuumizing until the vacuum degree reaches 10KPa, heating the electromagnetic eddy current to 850 ℃, melting for 30min, then cooling to 720 ℃, and preserving heat for 20min to obtain molten Al;
(2) mixing and melting: heating molten Al to 1500 ℃, adding Cr, Mo, W, Re, Ti, Zr, Fe, Ge and Cu in proportion, starting an ultrasonic vibration device to fully mix alloy molten liquid, then cooling to 1000 ℃ at the speed of 15 ℃/min, adding the remaining B, Si, nano SiN and nano SiC, carrying out ultrasonic vibration mixing for 15min again, adding a deslagging agent into the alloy molten liquid, and adjusting the components of the alloy molten liquid;
(3) pouring: keeping the temperature of the electromagnetic smelting crucible to 800 ℃, simultaneously keeping vacuumizing the crucible, and further removing impurity gas in the device, wherein when the vacuum degree reaches 10 KPa; pouring molten alloy liquid into a pouring mold of a specially-made section bar base body 1, a vertical connector 2 and a horizontal connector 3, after pouring, air-cooling to 250 ℃ at the speed of 15 ℃/min, then carrying out solid solution treatment on the section bar base body 1, the vertical connector 2 and the horizontal connector 3 obtained by pouring, cooling to normal temperature at the speed of 15 ℃/min after treatment, and dismantling the mold;
(4) oxidation: placing the prepared anodic oxidation liquid into an anodic oxidation pond, placing the prepared salt solution containing chromium ions into a cathode pond, connecting the anodic oxidation pond and the cathode pond through an ion permeable membrane, obtaining a profile matrix 1, a vertical connector 2 and a horizontal connector 3 in the step (3) as an anode, and obtaining the profile matrix 1, the vertical connector 2 and the horizontal connector 3 which are subjected to surface oxidation and correspond to the cathode;
controlling the anodic oxidation temperature to be 40 ℃, the primary voltage to be 50V, the primary oxidation time to be 10min, increasing the voltage to 100V, carrying out hard oxidation for 20min, stirring by adopting air in the anodic oxidation process, and drying the oxidized section bar matrix 1, the vertical connector 2 and the horizontal connector 3 in a nitrogen oven;
(5) electrophoresis: placing the dried section bar matrix 1, the vertical connector 2 and the horizontal connector 3 in an electrophoresis tank filled with an electrophoretic coating for electrophoresis treatment, so that an electrophoretic paint coating film is formed on the surfaces of the section bar matrix 1, the vertical connector 2 and the horizontal connector 3, the electrophoretic paint coating film is a semitransparent film layer, and washing the section bar matrix 1, the vertical connector 2 and the horizontal connector 3 twice at room temperature, wherein the washing time is 3min each time; then, curing is carried out, the curing temperature is 200 ℃, and the curing time is 20min, so that finished products of the section bar matrix 1, the vertical connector 2 and the horizontal connector 3 are obtained;
(6) assembling: assembling the profile matrix 1, the vertical connector 2 and the horizontal connector 3 after electrophoresis, and filling the honeycomb heat-insulating layer 8, the ceramic heat-insulating cylinder 9, the fiber heat-insulating layer 11 and the foam plastic heat-insulating layer 12 to obtain the casting type high-shear electrophoresis heat-insulating profile.
Furthermore, the anodic oxidation solution in the step 4 of the preparation method is 120g/L of pyruvic acid, 50g/L of sulfuric acid, 15g/L of ANODAL EE solution additive, 20g/L of dipotassium phosphate, 20g/L of monopotassium phosphate, 50g/L of aluminum sulfate, 30g/L of artificial plasma and deionized water.
Furthermore, the salt solution containing chromium ions in step 4 of the preparation method is a mixed solution of 35g/L of chromium sulfate, 15g/L of potassium phosphate, 15g/L of artificial plasma, 10g/L of ammonium bromide and deionized water.
Furthermore, the primary voltage in step 4 of the preparation method is a voltage with sine function waveform transformation, the boosted voltage is a pulse voltage, and the duty ratio is 0.8.
Furthermore, the electrophoretic paint in the step 5 of the preparation method comprises a gloss paint and a flatting paint, the ratio of the gloss paint to the flatting paint is 2:3, and the thickness of the electrophoretic paint film is 25 um.
Example 2
The present embodiment is different from embodiment 1 in that:
the heat insulation section contains the following elements in percentage by weight based on the total amount of the aluminum alloy section: cr 2.75%, Mo 0.65%, W0.55%, Si 0.18%, Re 0.09%, Ti 0.12%, Zr 0.08%, Fe 0.12%, B0.06%, Ge 0.05%, Cu 0.11%, nano SiN 0.08% and nano SiC 0.09%, and the balance of Al and inevitable impurities.
The preparation method of the casting type high-shear electrophoretic heat-insulation section comprises the following specific steps:
(1) melting: putting pure Al of the heat insulation section into an electromagnetic melting crucible according to a proportion, starting a vacuum system for vacuumizing until the vacuum degree reaches 5KPa, heating the electromagnetic eddy current to 750 ℃, melting for 60min, then cooling to 690 ℃, and preserving heat for 30min to obtain molten Al;
(2) mixing and melting: heating molten Al to 1200 ℃, adding Cr, Mo, W, Re, Ti, Zr, Fe, Ge and Cu in proportion, starting an ultrasonic vibration device to fully mix alloy molten liquid, then cooling to 800 ℃ at the speed of 10 ℃/min, adding the remaining B, Si, nano SiN and nano SiC, performing ultrasonic vibration mixing for 25min again, adding a slag removing agent into the alloy molten liquid, and adjusting the components of the alloy molten liquid;
(3) pouring: keeping the temperature of the electromagnetic smelting crucible to 700 ℃, simultaneously keeping vacuumizing the crucible, further removing impurity gas in the device, and when the vacuum degree reaches 5 KPa; pouring molten alloy liquid into a pouring mold of a specially-made section bar base body 1, a vertical connector 2 and a horizontal connector 3, after pouring, air-cooling to 200 ℃ at the speed of 10 ℃/min, then carrying out solid solution treatment on the section bar base body 1, the vertical connector 2 and the horizontal connector 3 obtained by pouring, cooling to normal temperature at the speed of 10 ℃/min after treatment, and dismantling the mold;
(4) oxidation: placing the prepared anodic oxidation liquid into an anodic oxidation pond, placing the prepared salt solution containing chromium ions into a cathode pond, connecting the anodic oxidation pond and the cathode pond through an ion permeable membrane, obtaining a profile matrix 1, a vertical connector 2 and a horizontal connector 3 in the step (3) as an anode, and obtaining the profile matrix 1, the vertical connector 2 and the horizontal connector 3 which are subjected to surface oxidation and correspond to the cathode;
controlling the anodic oxidation temperature to be 10 ℃, the primary voltage to be 10V, the primary oxidation time to be 20min, increasing the voltage to 80V, carrying out hard oxidation for 30min, stirring by adopting air in the anodic oxidation process, and drying the oxidized section bar matrix 1, the vertical connector 2 and the horizontal connector 3 in a nitrogen oven;
(5) electrophoresis: placing the dried section bar matrix 1, the vertical connector 2 and the horizontal connector 3 in an electrophoresis tank filled with an electrophoretic coating for electrophoresis treatment, so that an electrophoretic paint coating film is formed on the surfaces of the section bar matrix 1, the vertical connector 2 and the horizontal connector 3, the electrophoretic paint coating film is a semitransparent film layer, and washing the section bar matrix 1, the vertical connector 2 and the horizontal connector 3 twice at room temperature, wherein the washing time is 2min each time; then, curing is carried out, the curing temperature is 180 ℃, and the curing time is 20min, so that finished products of the section bar matrix 1, the vertical connector 2 and the horizontal connector 3 are obtained;
(6) assembling: assembling the profile matrix 1, the vertical connector 2 and the horizontal connector 3 after electrophoresis, and filling the honeycomb heat-insulating layer 8, the ceramic heat-insulating cylinder 9, the fiber heat-insulating layer 11 and the foam plastic heat-insulating layer 12 to obtain the casting type high-shear electrophoresis heat-insulating profile.
The anode oxidation liquid in the step 4 of the preparation method is 80g/L of pyruvic acid, 20g/L of sulfuric acid, 5g/L of ANODAL EE liquid additive, 10g/L of dipotassium hydrogen phosphate, 10g/L of potassium dihydrogen phosphate, 30g/L of aluminum sulfate, 20g/L of artificial plasma and deionized water.
The salt solution containing chromium ions in the step 4 of the preparation method is a mixed solution of 25g/L of chromium sulfate, 10g/L of potassium phosphate, 10g/L of artificial plasma, 5g/L of ammonium bromide and deionized water.
The primary voltage in step 4 of the preparation method is the voltage of sine function waveform transformation, the boosted voltage is pulse voltage, and the duty ratio is 1.
Further, the electrophoretic paint in the step 5 of the preparation method comprises a gloss paint and a flatting paint, the ratio of the gloss paint to the flatting paint is 1:2, and the thickness of the electrophoretic paint film is 15 um.
According to the pouring type high-shear electrophoretic heat insulation profile, the heat insulation layers made of different materials are filled in the combined aluminum alloy profile, so that the high-efficiency heat insulation of the aluminum alloy profile is realized, the heat insulation of the aluminum alloy profile can be obviously improved, the aluminum alloy is obtained through pouring, the surface of the aluminum alloy profile is coated with the paint film in an electrophoretic mode, the uniformity of the thickness of the paint film is ensured, the high shear of the aluminum alloy substrate is ensured through a specific structural design, and the pouring type high-shear electrophoretic heat insulation profile has good market prospect and practical value.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a thermal-insulated section bar of pouring type high shear electrophoresis which characterized in that: the profile comprises a profile base body (1), wherein a vertical connector (2) is arranged on one side of the profile base body (1), and a horizontal connector (3) is arranged on the other side of the profile base body (1);
a circular through hole (4) is formed in the middle of the profile base body (1), square through holes (5) are formed in the periphery of the prototype through hole (4), an inner connecting through hole (7) is formed in the joint of the profile base body (1) and the vertical connecting body (2), and an outer connecting through hole (6) is formed in the joint of the profile base body (1) and the horizontal connecting body (2);
the inside of circular through-hole (4) is filled with honeycomb insulating layer (8), and the surface parcel of honeycomb insulating layer (8) has a ceramic heat insulating section of thick bamboo (9), the inside of square through-hole (5) is filled with air insulating layer (10), the inside fibre insulating layer (11) of being filled with of interior connecting hole (7), the inside foamed plastic insulating layer (12) of being filled with of outer connecting hole (6).
2. A poured high shear electrophoretic insulating profile according to claim 1, wherein: the heat insulation section contains the following elements in percentage by weight based on the total amount of the aluminum alloy section: cr 2.75-5.55%, Mo 0.65-1.45%, W0.55-1.15%, Si 0.18-0.54%, Re 0.09-0.25%, Ti 0.12-0.36%, Zr 0.08-0.21%, Fe 0.12-0.24%, B0.06-0.12%, Ge 0.05-0.13%, Cu 0.11-0.15%, nano SiN 0.08-0.18%, nano SiC 0.09-0.21%, and the balance of Al and inevitable impurities.
3. The method of preparing a cast high shear electrophoretic insulating profile of claim 2, wherein: the preparation method comprises the following specific steps:
(1) melting: putting pure Al of the heat insulation section into an electromagnetic smelting crucible according to a proportion, starting a vacuum system for vacuumizing until the vacuum degree reaches 5-10 KPa, heating the pure Al to 750-850 ℃ by electromagnetic eddy current, smelting for 30-60 min, then cooling to 690-720 ℃, and preserving heat for 20-30 min to obtain molten Al;
(2) mixing and melting: heating molten Al to 1200-1500 ℃, adding Cr, Mo, W, Re, Ti, Zr, Fe, Ge and Cu in proportion, starting an ultrasonic vibration device to fully mix alloy molten liquid, then cooling to 800-1000 ℃ at the speed of 10-15 ℃/min, adding the rest B, Si, nano SiN and nano SiC, performing ultrasonic vibration mixing for 15-25 min again, adding a deslagging agent into the alloy molten liquid, and adjusting the components of the alloy molten liquid;
(3) pouring: keeping the temperature of the electromagnetic smelting crucible to 700-800 ℃, simultaneously keeping vacuumizing the crucible, further removing impurity gases in the device, and when the vacuum degree reaches 5-10 KPa; pouring molten alloy liquid into a pouring mold of a specially-made section bar base body (1), a vertical connector (2) and a horizontal connector (3), after pouring, air-cooling to 200-250 ℃ at the speed of 10-15 ℃/min, then carrying out solution treatment on the poured section bar base body (1), the vertical connector (2) and the horizontal connector (3), after treatment, cooling to normal temperature at the speed of 10-15 ℃/min by water, and dismantling the mold;
(4) oxidation: placing the prepared anodic oxidation liquid into an anodic oxidation pond, placing the prepared salt solution containing chromium ions into a cathode pond, connecting the anodic oxidation pond and the cathode pond through an ion permeable membrane, obtaining a profile matrix (1), a vertical connector (2) and a horizontal connector (3) in the step (3) as an anode, and obtaining the profile matrix (1), the vertical connector (2) and the horizontal connector (3) corresponding to the profile matrix with oxidized surfaces as a cathode;
controlling the anodic oxidation temperature to be 10-40 ℃, the primary voltage to be 10-50V, the primary oxidation time to be 10-20 min, increasing the voltage to be 80-100V, and carrying out hard oxidation for 20-30 min, stirring by using air in the anodic oxidation process, and drying the oxidized section bar matrix (1), the vertical connector (2) and the horizontal connector (3) in a nitrogen oven;
(5) electrophoresis: placing the dried section bar matrix (1), the vertical connector (2) and the horizontal connector (3) in an electrophoresis tank filled with an electrophoretic coating for electrophoresis treatment, so that an electrophoretic paint coating film is formed on the surfaces of the section bar matrix (1), the vertical connector (2) and the horizontal connector (3), the electrophoretic paint coating film is a semitransparent film layer, and washing the section bar matrix (1), the vertical connector (2) and the horizontal connector (3) twice at room temperature after electrophoresis, wherein the washing time is 2-3 min each time; curing at 180-200 ℃ for 20-25 min to obtain finished products of the profile matrix (1), the vertical connector (2) and the horizontal connector (3);
(6) assembling: assembling the profile matrix (1), the vertical connector (2) and the horizontal connector (3) after electrophoresis, and filling the honeycomb heat-insulating layer (8), the ceramic heat-insulating cylinder (9), the fiber heat-insulating layer (11) and the foam plastic heat-insulating layer (12) to obtain the pouring type high-shear electrophoretic heat-insulating profile.
4. The method of preparing a cast high shear electrophoretic insulating profile of claim 3, wherein: in the step 4 of the preparation method, the anodic oxidation liquid is 80-120 g/L of pyruvic acid, 20-50 g/L of sulfuric acid, 5-15 g/L of ANODAL EE liquid additive, 10-20 g/L of dipotassium hydrogen phosphate, 10-20 g/L of monopotassium phosphate, 30-50 g/L of aluminum sulfate, 20-30 g/L of artificial plasma and deionized water.
5. The method of preparing a cast high shear electrophoretic insulating profile of claim 3, wherein: the chromium ion-containing salt solution in the step 4 of the preparation method is a mixed solution of 25-35 g/L of chromium sulfate, 10-15 g/L of potassium phosphate, 10-15 g/L of artificial plasma, 5-10 g/L of ammonium bromide and deionized water.
6. The method of preparing a cast high shear electrophoretic insulating profile of claim 3, wherein: the primary voltage in the step 4 of the preparation method is a voltage subjected to sine function waveform transformation, the boosted voltage is a pulse voltage, and the duty ratio is 0.8-1.
7. The method of preparing a cast high shear electrophoretic insulating profile of claim 3, wherein: the electrophoretic paint in the step 5 of the preparation method comprises a gloss paint and a matting paint, the ratio of the gloss paint to the matting paint is 1-2: 2-3, and the thickness of the electrophoretic paint film is 15-25 um.
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| CN202011583405.4A CN112709515A (en) | 2020-12-28 | 2020-12-28 | Pouring type high-shearing force electrophoresis heat insulation section bar |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2199518A1 (en) * | 2008-12-11 | 2010-06-23 | Alcoa Aluminium Deutschland, Inc. | Heat insulated composite profile and method for its manufacture |
| CN102808566A (en) * | 2011-05-31 | 2012-12-05 | 新疆中油型材有限公司 | Four-seal aluminum plastic and aluminum composite energy-saving door and window structure |
| CN208430931U (en) * | 2018-05-17 | 2019-01-25 | 中民集装箱酒店有限公司 | A kind of heat preservation and soundproof building doors and windows profile |
| CN110836070A (en) * | 2018-08-18 | 2020-02-25 | 王田 | High polymer material combined door and window section bar filled with polymer material and manufacturing method thereof |
-
2020
- 2020-12-28 CN CN202011583405.4A patent/CN112709515A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2199518A1 (en) * | 2008-12-11 | 2010-06-23 | Alcoa Aluminium Deutschland, Inc. | Heat insulated composite profile and method for its manufacture |
| CN102808566A (en) * | 2011-05-31 | 2012-12-05 | 新疆中油型材有限公司 | Four-seal aluminum plastic and aluminum composite energy-saving door and window structure |
| CN208430931U (en) * | 2018-05-17 | 2019-01-25 | 中民集装箱酒店有限公司 | A kind of heat preservation and soundproof building doors and windows profile |
| CN110836070A (en) * | 2018-08-18 | 2020-02-25 | 王田 | High polymer material combined door and window section bar filled with polymer material and manufacturing method thereof |
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