CN107685086A - A kind of aluminum extrusion process - Google Patents

A kind of aluminum extrusion process Download PDF

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Publication number
CN107685086A
CN107685086A CN201610633582.6A CN201610633582A CN107685086A CN 107685086 A CN107685086 A CN 107685086A CN 201610633582 A CN201610633582 A CN 201610633582A CN 107685086 A CN107685086 A CN 107685086A
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CN
China
Prior art keywords
heated
section bar
hours
mould
aluminium
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Pending
Application number
CN201610633582.6A
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Chinese (zh)
Inventor
田静
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Individual
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Individual
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Priority to CN201610633582.6A priority Critical patent/CN107685086A/en
Publication of CN107685086A publication Critical patent/CN107685086A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C29/00—Cooling or heating work or parts of the extrusion press; Gas treatment of work
    • B21C29/003—Cooling or heating of work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C29/00—Cooling or heating work or parts of the extrusion press; Gas treatment of work
    • B21C29/04—Cooling or heating of press heads, dies or mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C31/00—Control devices, e.g. for regulating the pressing speed or temperature of metal; Measuring devices, e.g. for temperature of metal, combined with or specially adapted for use in connection with extrusion presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/12—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by stretching with or without twisting
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Forging (AREA)
  • Extrusion Of Metal (AREA)

Abstract

The invention discloses a kind of aluminum extrusion process, it is characterised in that its technique is as follows：Preheating：Using the heating terraced temperature form of 85 DEG C/1 hour, ingot-containing tube is heated up to 380 DEG C 420 DEG C, select suitable aluminium bar to put ingot-containing tube into according to product and aluminium bar was heated up to 450 DEG C 500 DEG C by 90 DEG C/1 hour warm form of ladder, and it is incubated 3-5 hours, select suitable mould, flat-die is heated up to 460 DEG C 480 DEG C, divides mould to be heated up to 480 DEG C 500 DEG C, and be incubated 4-6 hours.

Description

A kind of aluminum extrusion process
Technical field
The present invention relates to aluminium section bar manufacturing field, more particularly to a kind of aluminum extrusion process.
Background technology
Aluminium section bar is widely used in the building fields such as aluminium door and window, furred ceiling, in order to ensure that door and window has certain intensity, makes it It is indeformable, and ensure its appearance looks elegant, zero defect, in addition to being made improvements on aluminium profile structure, each producer has each Moulding process, corresponding molding parameter, and the factor for influenceing aluminium shape surface quality is a lot, such as ingot quality requirement, mould Design, the required precision of processing can all influence the surface quality of aluminium section bar, and the extrusion process of aluminium section bar is to influence its intensity And a critically important factor of performance, the surface quality defect of general aluminium alloy extrusions have slag inclusion, extruding striped, cut, table The forming defects such as face is rough, although this is unavoidable to a certain extent, these are improved by the method for modified technique These defects, otherwise will can influence section quality, outward appearance and use, and product can not be carried further on quality Rise.
The content of the invention
The invention discloses a kind of aluminum extrusion process, to solve the deficiencies in the prior art.
To solve the above problems, the technical solution of the present invention is：
A kind of aluminum extrusion process, its technique are as follows：
(1), preheat：Using the heating terraced temperature form of 85 DEG C/1 hour, ingot-containing tube is heated up to 380 DEG C -420 DEG C, according to Product selects suitable aluminium bar to put ingot-containing tube into and aluminium bar is heated up into 450 DEG C -500 DEG C by 90 DEG C/1 hour ladder warm form, and protects Warm 3-5 hours, suitable mould is selected, flat-die is heated up to 460 DEG C -480 DEG C, divide mould to be heated up to 480 DEG C -500 DEG C, and It is incubated 4-6 hours；
(2) extruder, is started：Start cooling motor-hydraulic motor；
(3), install：Aluminium bar after heating and mould were arranged on extruder in 30 minutes；
(4), master cylinder, which advances, extrudes：Control extrusion speed≤180 ㎏/cm2,110 ㎏ of material courage locking pressure/cm2-135 ㎏/cm2, the section bar rate of outflow exist according to discharging quality control on the surface：5 ms/min --- 30 ms/min, when surface quality is low, Speed is then reduced, when surface quality is high, speed can be improved；
(5), it is heat-treated：The aluminium alloy extrusions squeezed out is quenched in the exit of the recipient using atomized water spray Fire, make section bar temperature below 50 DEG C；
(6), tension straingtening：End is held using straightener to align section bar；
(7), sawing：The unqualified part in both ends is cut off using the mode of being synchronized with the movement, saw cutting head material should be not less than 80 ㎝, tailing Not less than 100 ㎝, to ensure quality and then be put into platform or frock to carry out natural cooling 12 hours；
(8), pack：Product after cooling is subjected to overlay film packaging.
The beneficial effects of the invention are as follows：By strictly controlling the preheating temperature of mould, ingot-containing tube, aluminium bar, and using ladder Warm heating form, to eliminate internal stress, by Quenching Treatment, tension straingtening is being carried out, then carrying out long-time natural cooling, it is raw Produce obtained aluminium shape surface no marking, bubble-free, elongation percentage and intensity smooth without extruding striped, corrosion-free point, surface It is high.
Embodiment
The embodiment of the present invention is described in further detail below.
Present invention process is as follows：
(1), preheat：Using the heating terraced temperature form of 85 DEG C/1 hour, ingot-containing tube is heated up to 380 DEG C -420 DEG C, according to Product selects suitable aluminium bar to put ingot-containing tube into and 90 DEG C on an hourly basis/1 hour warm form of ladder of aluminium bar is heated up into 450 DEG C -500 DEG C, and be incubated 3-5 hours, select suitable mould, flat-die is heated up to 460 DEG C -480 DEG C, divide mould be heated up to 480 DEG C - 500 DEG C, and it is incubated 4-6 hours；
(2) extruder, is started：Start cooling motor --- hydraulic motor；
(3), install：Aluminium bar after heating and mould were arranged on extruder in 30 minutes；
(4), master cylinder, which advances, extrudes：Control extrusion speed≤180 ㎏/cm2,110 ㎏ of material courage locking pressure/cm2-135 ㎏/cm2, the section bar rate of outflow exist according to discharging quality control on the surface：5 ms/min --- 30 ms/min, when surface quality is low, Speed is then reduced, when surface quality is high, speed can be improved；
(5), it is heat-treated：The aluminium alloy extrusions squeezed out is quenched in the exit of the recipient using atomized water spray Fire, make section bar temperature below 50 DEG C；
(6), tension straingtening：End is held using straightener to align section bar；
(7), sawing：The unqualified part in both ends is cut off using the mode of being synchronized with the movement, saw cutting head material should be not less than 80 ㎝, tailing Not less than 100 ㎝, to ensure quality and then be put into platform or frock to carry out natural cooling 12 hours；
(8), pack：Product after cooling is subjected to overlay film packaging.
In actual applications, if during new die, the working surface of the mould need to be processed by shot blasting to smooth Carry out nitrogen treatment again afterwards, four uses before new die, every time after alkali cleaning, it is necessary to carry out nitrogen treatment；New die nitrogenizes Processing be changed to for more than four times it is every carry out a nitrogen treatment again after alkali cleaning twice, new die nitrogen treatment is forward and backward to be required to It is processed by shot blasting, and often extrudes -100 rods of 80 rods, it is necessary to clears up a defective material courage, aluminium alloy type with special clear cylinder pad Temperature control is less than 50 DEG C after material quenching, amount of tension control 0.5~1.5%, the discard thickness of the mould is 38~ 42mm, the air-cooled speed of discharging opening is not less than 10m/ minutes, when saw is expected, pays attention to light pressure and saw is with expecting advanced in unison, prevent section bar pressure It is curved, during pusher, handle with care, avoid artificial scratch and material platform wipes flower, and saw expect when, section bar must be held, Prevent section bar from swinging and wipe flower.
Forbid extension head and manipulator's face discharging opening during traction, occur to prevent danger, when opens interrupters are sawed, manipulator can not Face is interrupted in the range of the ㎝ of saw saw blades 30, forbids the person close, to ensure safety, pays attention to the road that discharges, and prevents from expecting that bed withstands type Material, pay attention to section bar discharging when turn round twist, check oil hydraulic system whether oil leak, whether air pressure normal, check transmission belt, cold bed, In place of whether storing stand has damaged and scratch section bar, the length of section bar, then prescribed drawing rate are confirmed before stretching, it is determined that stretching length Degree, i.e., main folder head shift position, usual 6063T5 extensibilitys are 0.5%--1%, and 6061T6 extensibilitys are 0.8%--1.5%. Clamp method is confirmed according to the shape of section bar, big cross section hollow profile, stretching cushion block can be filled in, but to ensure enough folders as far as possible Area is held, when section bar is cooled to below 50 DEG C, energy is opened and stretches section bar, when section bar has bending and turns round stubborn simultaneously, should first be rectified Positive twist twists post-tensioning bending, first can carry out examination drawing using first and second, whether extensibility of confirming a reservation and clamp method are suitable, mesh Depending on bending, plane clearance that is stubborn, checking section bar, enlarging, parallel port are turned round, it is such as improper, suitably to adjust extensibility, normal stretch rate When can not still eliminate bending, turn round and twist, or physical dimension can not be made qualified, manipulator should be notified to stop extruding, saw cutting head material should not Less than 80 ㎝, tailing is not less than 100 ㎝, to ensure quality and then be put into platform or frock to carry out natural cooling 12 hours.
During the inspection of aluminium alloy extrusions and ingot casting, head material examination requirementses must be to by quenching when being machine on every mold Section surface gap, width and the wall thickness dimension of reason are conscientiously detected, and carry out ultrasound examination, while it is ensured that type if necessary Material surface is more bright and clean better.Plane clearance, width and wall thickness dimension should be spot-check during tension straingtening in time, before every mold 5~6 ingots should by detect section bar head, in, the size of endpiece and plane clearance determine the reasonable drawing of this batch of aluminium alloy extrusions Rate is stretched, while midway carries out stretching inspection, it is ensured that profile size and flatness after stretching meet technical requirements.Per mold Section bar requires that inspector or sawing work answer random inspection width and wall thickness dimension before sawing frames up, it is ensured that product size precision reaches To drawing requirement.
Above-mentioned embodiment is the preferred embodiments of the present invention, can not be limited the invention, and others are appointed The change or other equivalent substitute modes what is made without departing from technical scheme, are included in the protection of the present invention Within the scope of.

Claims (1)

1. a kind of aluminum extrusion process, it is characterised in that its technique is as follows：
(1), preheat：Using the heating terraced temperature form of 85 DEG C/1 hour, ingot-containing tube is heated up to 380 DEG C -420 DEG C, according to product Select suitable aluminium bar to put ingot-containing tube into and aluminium bar was heated up to 450 DEG C -500 DEG C by 90 DEG C/1 hour warm form of ladder, and be incubated 3- 5 hours, suitable mould is selected, flat-die is heated up to 460 DEG C -480 DEG C, divides mould to be heated up to 480 DEG C -500 DEG C, and be incubated 4-6 hours；
(2) extruder, is started：Start cooling motor-hydraulic motor；
(3), install：Aluminium bar after heating and mould were arranged on extruder in 30 minutes；
(4), master cylinder, which advances, extrudes：Control extrusion speed≤180 ㎏/cm2,110 ㎏ of the material courage locking pressure/㎏ of cm2-135/ Cm2, the section bar rate of outflow exist according to discharging quality control on the surface：5 ms/min --- 30 ms/min, when surface quality is low, then drop Low velocity, when surface quality is high, speed can be improved；
(5), it is heat-treated：The aluminium alloy extrusions squeezed out is quenched in the exit of the recipient using atomized water spray, is made Section bar temperature is below 50 DEG C；
(6), tension straingtening：End is held using straightener to align section bar；
(7), sawing：The unqualified part in both ends is cut off using the mode of being synchronized with the movement, saw cutting head material should be not less than 80 ㎝, and tailing is not small In 100 ㎝, to ensure quality and then be put into platform or frock to carry out natural cooling 12 hours；
(8), pack：Product after cooling is subjected to overlay film packaging.
CN201610633582.6A 2016-08-03 2016-08-03 A kind of aluminum extrusion process Pending CN107685086A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108941234A (en) * 2018-07-06 2018-12-07 扬州瑞斯乐复合金属材料有限公司 A kind of control method of the extruded velocity of microchannel aluminium flat conduit
CN110293140A (en) * 2019-06-20 2019-10-01 张家港大洋铝业有限公司 A kind of photovoltaic guide rail extruding preparation process
CN110523799A (en) * 2019-08-28 2019-12-03 安徽金鹏住工有限公司 A kind of extrusion process of aluminium alloy door's window profile
CN110883123A (en) * 2019-11-22 2020-03-17 廊坊国美铝业有限公司 Cold storage refrigeration fin extrusion production process
CN112718902A (en) * 2020-12-02 2021-04-30 江苏兴业铝材有限公司 Extrusion processing method of alloy aluminum profile
CN113172114A (en) * 2021-06-08 2021-07-27 江苏东台天腾铝业有限公司 Aluminum profile extrusion forming process method
CN113664061A (en) * 2021-09-03 2021-11-19 河南中多铝镁新材有限公司 Extrusion process of ultrahigh-precision aluminum alloy profile

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103194701A (en) * 2013-04-28 2013-07-10 东莞市铝美铝型材有限公司 Production process for aluminium alloy profile
CN103394538A (en) * 2013-08-06 2013-11-20 浙江瑞金铜铝型材有限公司 Molding and aging technology of 7A04 superhard aluminum alloy section bar
CN103537502A (en) * 2013-11-04 2014-01-29 张家港市昊天金属科技有限公司 Aluminium profile extrusion process
KR20140125048A (en) * 2013-04-18 2014-10-28 주식회사씨앤에프 Method for making cross bar for transfering plate

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140125048A (en) * 2013-04-18 2014-10-28 주식회사씨앤에프 Method for making cross bar for transfering plate
CN103194701A (en) * 2013-04-28 2013-07-10 东莞市铝美铝型材有限公司 Production process for aluminium alloy profile
CN103394538A (en) * 2013-08-06 2013-11-20 浙江瑞金铜铝型材有限公司 Molding and aging technology of 7A04 superhard aluminum alloy section bar
CN103537502A (en) * 2013-11-04 2014-01-29 张家港市昊天金属科技有限公司 Aluminium profile extrusion process

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108941234A (en) * 2018-07-06 2018-12-07 扬州瑞斯乐复合金属材料有限公司 A kind of control method of the extruded velocity of microchannel aluminium flat conduit
CN110293140A (en) * 2019-06-20 2019-10-01 张家港大洋铝业有限公司 A kind of photovoltaic guide rail extruding preparation process
CN110523799A (en) * 2019-08-28 2019-12-03 安徽金鹏住工有限公司 A kind of extrusion process of aluminium alloy door's window profile
CN110883123A (en) * 2019-11-22 2020-03-17 廊坊国美铝业有限公司 Cold storage refrigeration fin extrusion production process
CN112718902A (en) * 2020-12-02 2021-04-30 江苏兴业铝材有限公司 Extrusion processing method of alloy aluminum profile
CN113172114A (en) * 2021-06-08 2021-07-27 江苏东台天腾铝业有限公司 Aluminum profile extrusion forming process method
CN113664061A (en) * 2021-09-03 2021-11-19 河南中多铝镁新材有限公司 Extrusion process of ultrahigh-precision aluminum alloy profile

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