CN109112448B - Guide roller heat treatment process - Google Patents
Guide roller heat treatment process Download PDFInfo
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- CN109112448B CN109112448B CN201810842050.2A CN201810842050A CN109112448B CN 109112448 B CN109112448 B CN 109112448B CN 201810842050 A CN201810842050 A CN 201810842050A CN 109112448 B CN109112448 B CN 109112448B
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- guide roller
- bearing mounting
- mounting holes
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- 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
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/38—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for roll bodies
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- 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
- C22F1/05—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 of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
The invention discloses a heat treatment process for a guide roller, and relates to the technical field of guide roller production. The invention comprises a guide roller, the manufacturing material of the guide roller is 6061 aluminum alloy, two ports of the guide roller are provided with bearing mounting holes, the guide roller mainly adopts a two-section T6 heat treatment method, and the method comprises the following steps: step one, first-stage solution treatment; step two, correcting the guide roller bearing mounting hole; step three, carrying out artificial aging treatment on the first section; step four, second stage solution treatment, step five, correcting the surface of the guide roller shaft, step six, second stage artificial aging treatment. The invention corrects the roll shaft through two sections of solution treatment and artificial aging treatment, thereby not only improving the corrosion resistance, tensile strength and hardness of the roll shaft and prolonging the service life of the roll shaft, but also improving the assembly precision and coaxiality of the roll shaft and ensuring that the overall performance of the roll shaft is stronger.
Description
Technical Field
The invention belongs to the technical field of guide roller production, and particularly relates to a heat treatment process of a guide roller.
Background
The existing guide roller is generally made of aluminum alloy, is also called as an aluminum alloy guide roller or an aluminum guide roller, is suitable for printing, packaging, plastics and electronic batteries in the industry, and generally adopts 6 series aluminum alloy, wherein main alloy elements of 6061 aluminum alloy are magnesium and silicon and form Mg2Si phase. If a certain amount of manganese and chromium are contained, the bad effect of iron can be neutralized; sometimes, a small amount of copper or zinc is added to improve the strength of the alloy without obviously reducing the corrosion resistance; a small amount of copper is also contained in the conductive material to offset the adverse effect of titanium and iron on the conductivity; the zirconium or titanium can refine grains and control a recrystallization structure; lead and bismuth may be added to improve machinability. Mg2Si is dissolved in aluminum to make the alloy have man-made effect of hardening. The 6061 aluminum alloy is a high-quality aluminum alloy product subjected to a heat treatment pre-stretching process; the magnesium-aluminum 6061 has the advantages of excellent processing performance, good corrosion resistance, high toughness, no deformation after processing, easy coloring film, excellent oxidation effect and the like.
Disclosure of Invention
The invention aims to provide a heat treatment process of a guide roller, which improves the processing precision of the guide roller and further strengthens the comprehensive performance of the guide roller.
The invention is realized by the following technical scheme:
the invention relates to a heat treatment process of a guide roller, which comprises the guide roller, wherein the guide roller is made of 6061 aluminum alloy, bearing mounting holes are formed in two end openings of the guide roller, the guide roller mainly adopts a two-section T6 heat treatment method, and the heat treatment process specifically comprises the following steps:
step one, a first stage of solution treatment, namely placing the guide roller in a gas solution furnace, preserving heat for 6 hours at 538 +/-5 ℃, and then taking out the guide roller to be water-quenched to 60-100 ℃;
correcting bearing mounting holes of guide rollers, namely immediately correcting the bearing mounting holes at two ends of the taken guide roller through a correction shaft, wherein the correction shaft is divided into two sections which are arranged oppositely to each other in the same axle center;
step three, a first stage of artificial aging treatment, namely taking down the guide roller, placing the guide roller in a gas solid solution furnace, preserving the heat for 4 hours at the temperature of 155 +/-5 ℃, taking out the guide roller, and air-cooling the guide roller to the room temperature;
step four, second-stage solution treatment, namely placing the guide roller in a gas solution furnace, preserving heat for 8 hours at 538 +/-5 ℃, and taking out the guide roller to be water-quenched to 60-100 ℃;
fifthly, correcting the surface of the guide roller shaft, assembling bearing mounting holes at two ends of the guide roller on a correction shaft, and correcting by a press machine;
and step six, the second stage of artificial aging treatment, namely taking down the guide roller, placing the guide roller in a gas solid solution furnace, preserving the heat for 6 hours at the temperature of 155 +/-5 ℃, taking out the guide roller, and air-cooling the guide roller to the room temperature.
Furthermore, the coaxiality error of the bearing mounting holes at the two ends of the guide roller is +/-0.01 mm, and the coaxiality error of the surface of the guide roller shaft and the bearing mounting holes is +/-0.01 mm.
Further, the heating rate of the solution treatment in the first step and the fourth step is less than or equal to 200 ℃/h.
Further, the gas solid solution furnace is provided with a hot air circulation system and an automatic temperature control system.
The invention has the following beneficial effects:
the invention carries out the correction of the guide roller through two sections of solution treatment and artificial aging treatment, thereby not only improving the corrosion resistance, tensile strength and hardness of the guide roller and prolonging the service life of the guide roller, but also improving the assembly precision and coaxiality of the guide roller and leading the integral performance of the guide roller to be stronger.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of the structure of the guide roll of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1-guide roller, 2-bearing mounting hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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.
As shown in fig. 1, the guide roller heat treatment process comprises a guide roller 1, wherein the guide roller 1 is made of 6061 aluminum alloy, bearing mounting holes 2 are formed in two ports of the guide roller 1, and the guide roller 1 mainly adopts a two-section T6 treatment heat treatment method, which specifically comprises the following steps:
step one, a first stage of solution treatment, namely placing the guide roller 1 in a gas solution furnace, preserving heat for 6 hours at 538 +/-5 ℃, and then taking out the guide roller to be water-quenched to 80 ℃;
correcting bearing mounting holes 2 of the guide roller 1, namely immediately correcting the bearing mounting holes 2 at two ends of the guide roller 1 through a correction shaft, wherein the correction shaft is divided into two sections and is arranged opposite to the center of the shaft, and when the correction is performed, the bearing mounting hole at one end of the guide roller 1 is matched with one end of one correction shaft, one end of the other correction shaft is pushed to be matched with the bearing mounting hole at the other end of the guide roller 1 through a top center shaft seat of a mobile lathe, so that the coaxiality error of the bearing mounting holes 2 at two ends of the guide roller 1 is +/-0.01 mm;
step three, a first stage of artificial aging treatment, namely taking down the guide roller 1, placing the guide roller in a gas solid solution furnace, preserving the heat for 4 hours at the temperature of 155 +/-5 ℃, taking out the guide roller 1, and air-cooling to room temperature;
step four, second-stage solution treatment, namely placing the guide roller 1 in a gas solution furnace, preserving heat for 8 hours at 538 +/-5 ℃, and then taking out the guide roller 1 to be water-quenched to 100 ℃;
fifthly, correcting the surface of the shaft of the guide roller 1, assembling the bearing mounting holes 2 at two ends of the guide roller 1 on the correction shaft, and straightening by a press machine to obtain that the coaxiality error between the surface of the shaft of the guide roller 1 and the bearing mounting holes 2 is +/-0.01 mm;
and step six, performing second-stage artificial aging treatment, namely taking down the guide roller 1, placing the guide roller in a gas solid solution furnace, preserving the heat for 6 hours at the temperature of 155 +/-5 ℃, taking out the guide roller 1, and air-cooling to room temperature to obtain the guide roller 1 with the tensile strength of 130MPa and the bending ultimate strength of 240 MPa.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (4)
1. The heat treatment process of the guide roller comprises the guide roller and is characterized in that: the manufacturing material of the guide roller is 6061 aluminum alloy, bearing mounting holes are formed in two ports of the guide roller, the guide roller mainly adopts a two-section T6 treatment heat treatment method, and the method specifically comprises the following steps:
step one, a first stage of solution treatment, namely placing the guide roller in a gas solution furnace, preserving heat for 6 hours at 538 +/-5 ℃, and then taking out the guide roller to be water-quenched to 60-100 ℃;
correcting bearing mounting holes of guide rollers, namely immediately correcting the bearing mounting holes at two ends of the taken guide roller through a correction shaft, wherein the correction shaft is divided into two sections which are arranged oppositely to each other in the same axle center;
step three, a first stage of artificial aging treatment, namely taking down the guide roller, placing the guide roller in a gas solid solution furnace, preserving the heat for 4 hours at the temperature of 155 +/-5 ℃, taking out the guide roller, and air-cooling the guide roller to the room temperature;
step four, second-stage solution treatment, namely placing the guide roller in a gas solution furnace, preserving heat for 8 hours at 538 +/-5 ℃, and taking out the guide roller to be water-quenched to 60-100 ℃;
fifthly, correcting the surface of the guide roller shaft, assembling bearing mounting holes at two ends of the guide roller on a correction shaft, and correcting by a press machine;
and step six, the second stage of artificial aging treatment, namely taking down the guide roller, placing the guide roller in a gas solid solution furnace, preserving the heat for 6 hours at the temperature of 155 +/-5 ℃, taking out the guide roller, and air-cooling the guide roller to the room temperature.
2. The heat treatment process of claim 1, wherein the coaxiality error of the bearing mounting holes at the two ends of the guide roller is +/-0.01 mm, and the coaxiality error of the surface of the guide roller shaft and the bearing mounting holes is +/-0.01 mm.
3. The process of claim 1, wherein the heating rate of the solution treatment in the first step and the fourth step is less than or equal to 200 ℃/h.
4. The guide roll heat treatment process as claimed in claim 1, wherein the gas-fired solution furnace has a hot air circulation system and an automatic temperature control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810842050.2A CN109112448B (en) | 2018-07-27 | 2018-07-27 | Guide roller heat treatment process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810842050.2A CN109112448B (en) | 2018-07-27 | 2018-07-27 | Guide roller heat treatment process |
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| CN109112448A CN109112448A (en) | 2019-01-01 |
| CN109112448B true CN109112448B (en) | 2020-07-24 |
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| CN201810842050.2A Active CN109112448B (en) | 2018-07-27 | 2018-07-27 | Guide roller heat treatment process |
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| CN113201641B (en) * | 2021-04-26 | 2022-11-01 | 瑞安市创博机械有限公司 | Heat treatment method and heat treatment method for stretched aluminum guide roller |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6186233A (en) * | 1984-10-05 | 1986-05-01 | Bridgestone Corp | Controlling method of extruder |
| JPH08127851A (en) * | 1994-10-27 | 1996-05-21 | Sumitomo Metal Ind Ltd | Production of forged aluminum alloy wheel excellent in corrosion fatigue resistance |
| CN102492877A (en) * | 2011-12-31 | 2012-06-13 | 辽宁忠旺集团有限公司 | Extruding processing technology of aluminium alloy tubing with large diameter |
| CN102965603A (en) * | 2012-10-31 | 2013-03-13 | 邓运来 | Heat treatment method for reducing quenching residual stress of wrought aluminum alloy and improving performance of the aluminum alloy |
| CN103255324A (en) * | 2013-04-19 | 2013-08-21 | 北京有色金属研究总院 | Aluminum alloy material suitable for manufacturing car body panel and preparation method |
| WO2014033907A1 (en) * | 2012-08-31 | 2014-03-06 | トヨタ自動車株式会社 | Method for manufacturing endless metal belt, endless metal belt, and belt-type continuously variable transmission |
| CN104668307A (en) * | 2015-03-14 | 2015-06-03 | 郑英 | Production method for high-strength super-large diameter thin-walled pressure-resistant aluminum alloy pipe |
-
2018
- 2018-07-27 CN CN201810842050.2A patent/CN109112448B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6186233A (en) * | 1984-10-05 | 1986-05-01 | Bridgestone Corp | Controlling method of extruder |
| JPH08127851A (en) * | 1994-10-27 | 1996-05-21 | Sumitomo Metal Ind Ltd | Production of forged aluminum alloy wheel excellent in corrosion fatigue resistance |
| CN102492877A (en) * | 2011-12-31 | 2012-06-13 | 辽宁忠旺集团有限公司 | Extruding processing technology of aluminium alloy tubing with large diameter |
| WO2014033907A1 (en) * | 2012-08-31 | 2014-03-06 | トヨタ自動車株式会社 | Method for manufacturing endless metal belt, endless metal belt, and belt-type continuously variable transmission |
| CN102965603A (en) * | 2012-10-31 | 2013-03-13 | 邓运来 | Heat treatment method for reducing quenching residual stress of wrought aluminum alloy and improving performance of the aluminum alloy |
| CN103255324A (en) * | 2013-04-19 | 2013-08-21 | 北京有色金属研究总院 | Aluminum alloy material suitable for manufacturing car body panel and preparation method |
| CN104668307A (en) * | 2015-03-14 | 2015-06-03 | 郑英 | Production method for high-strength super-large diameter thin-walled pressure-resistant aluminum alloy pipe |
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| CN109112448A (en) | 2019-01-01 |
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Effective date of registration: 20200628 Address after: Xiangpu Minying District, Huaqiao Town, Kunshan City, Suzhou City, Jiangsu Province Applicant after: Suzhou Lihua MITEX cot Manufacturing Co., Ltd Address before: 230000 No. 2910 Tangkou Road, Hefei Economic and Technological Development Zone, Anhui Province, 101 (Part) Applicant before: HEFEI SHENNUO MACHINERY Co.,Ltd. |
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