CN113086075A - Novel light high strength frame - Google Patents
Novel light high strength frame Download PDFInfo
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- CN113086075A CN113086075A CN202110424704.1A CN202110424704A CN113086075A CN 113086075 A CN113086075 A CN 113086075A CN 202110424704 A CN202110424704 A CN 202110424704A CN 113086075 A CN113086075 A CN 113086075A
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- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 85
- 238000003466 welding Methods 0.000 claims abstract description 84
- 238000010438 heat treatment Methods 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims abstract description 21
- 230000008569 process Effects 0.000 claims abstract description 20
- 210000000078 claw Anatomy 0.000 claims abstract description 18
- 238000000265 homogenisation Methods 0.000 claims description 29
- 238000010079 rubber tapping Methods 0.000 claims description 29
- 239000007789 gas Substances 0.000 claims description 25
- 238000002360 preparation method Methods 0.000 claims description 22
- 239000002994 raw material Substances 0.000 claims description 21
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 20
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 17
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 16
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 15
- 229910052782 aluminium Inorganic materials 0.000 claims description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 15
- 238000005553 drilling Methods 0.000 claims description 15
- 239000010949 copper Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000005498 polishing Methods 0.000 claims description 11
- 239000000243 solution Substances 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- 229910052786 argon Inorganic materials 0.000 claims description 10
- 239000001569 carbon dioxide Substances 0.000 claims description 10
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 229910052804 chromium Inorganic materials 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 238000006356 dehydrogenation reaction Methods 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 10
- 229910052749 magnesium Inorganic materials 0.000 claims description 10
- 229910052748 manganese Inorganic materials 0.000 claims description 10
- 239000000155 melt Substances 0.000 claims description 10
- 239000011259 mixed solution Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- 229910052710 silicon Inorganic materials 0.000 claims description 10
- 238000005266 casting Methods 0.000 claims description 9
- 239000008367 deionised water Substances 0.000 claims description 8
- 229910021641 deionized water Inorganic materials 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 5
- 244000137852 Petrea volubilis Species 0.000 claims description 5
- 238000003723 Smelting Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 5
- 229910052733 gallium Inorganic materials 0.000 claims description 5
- 239000001257 hydrogen Substances 0.000 claims description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 238000010309 melting process Methods 0.000 claims description 5
- 238000007781 pre-processing Methods 0.000 claims description 5
- 238000007670 refining Methods 0.000 claims description 5
- 239000002893 slag Substances 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 230000006698 induction Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 229910001094 6061 aluminium alloy Inorganic materials 0.000 abstract description 4
- 208000028659 discharge Diseases 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000005237 degreasing agent Methods 0.000 description 1
- 239000013527 degreasing agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005288 electromagnetic effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K19/00—Cycle frames
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D7/00—Casting ingots, e.g. from ferrous metals
- B22D7/005—Casting ingots, e.g. from ferrous metals from non-ferrous metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K19/00—Cycle frames
- B62K19/02—Cycle frames characterised by material or cross-section of frame members
- B62K19/04—Cycle frames characterised by material or cross-section of frame members the material being wholly or mainly metallic, e.g. of high elasticity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K19/00—Cycle frames
- B62K19/18—Joints between frame members
- B62K19/20—Joints between frame members welded, soldered, or brazed
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
-
- 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
Abstract
The invention discloses a novel light high-strength frame, which has the technical scheme that: the frame comprises a head tube, a middle tube, an upper tube, a lower tube, an upper fork, a lower fork, a five-way joint and a rear hook claw, wherein one end of the upper tube is welded on the head tube, the other end of the upper tube is welded on the middle tube, one end of the lower tube is welded on the head tube, the other end of the lower tube is welded on the five-way joint, one end of the upper fork is welded on the middle tube, the other end of the upper fork is connected with the other end of the lower fork through the rear hook claw, one end of the lower fork is welded on the five-way joint, the five-way joint is welded on the middle tube, and the head tube, the middle tube, the upper tube, the lower tube, the upper fork, the lower fork, the five-way joint and the rear hook claw are; adopt 6J01 aluminum alloy pipe fitting to replace 6061 aluminum alloy pipe fitting, carry out the frame welding back, need not carry out heat treatment and straightening process again to the frame, make the production efficiency of frame promote, reduction in production cost simultaneously.
Description
Technical Field
The invention relates to the field of frame production, in particular to a novel light high-strength frame.
Background
At present, the quantity of non-motor vehicles in China is very large, such as bicycles, electric vehicles, tricycles and the like, with the improvement of the living quality and the economic level of people, people who use the bicycles as transportation tools are more and more, and especially after a shared bicycle appears, people can choose the environment-friendly and healthy mode to go out.
Referring to the prior Chinese patent with publication number CN107881311A, the process for manufacturing a bicycle frame comprises the following steps: carrying out heat treatment on the whole bicycle frame blank in a high-temperature furnace, wherein the heat treatment temperature is 540-550 ℃, and the heat treatment time is 40-60 minutes; taking out the bicycle frame blank from the high-temperature furnace for water quenching; after the temperature of the bicycle frame blank returns to the room temperature, polishing the surface of the bicycle frame blank by using leather paper; placing the bicycle frame blank in a degreasing tank added with a degreasing agent to remove oil stains; washing the degreased bicycle frame blank with water at the temperature of 20-35 ℃ for 2-4 minutes; soaking the bicycle frame blank in hydrochloric acid for 3-6 minutes; and taking out the bicycle frame blank, cleaning the bicycle frame blank by using clear water, and painting the bicycle frame blank after the water is dried.
The bicycle frame manufacturing process has strong corrosion resistance and high integral structure strength. However, the existing light-weight high-strength frame still has some disadvantages, such as: the preparation process is complex, heat treatment and straightening procedures are required, the working time is increased, and the production efficiency and the production cost are reduced.
Disclosure of Invention
In view of the problems mentioned in the background art, the present invention is to provide a novel light-weight high-strength frame to solve the problems mentioned in the background art.
The technical purpose of the invention is realized by the following technical scheme:
a novel light high-strength frame comprises a head pipe, a middle pipe, an upper pipe, a lower pipe, an upper fork, a lower fork, a five-way joint and a rear hook claw, wherein one end of the upper pipe is welded on the head pipe, the other end of the upper pipe is welded on the middle pipe, one end of the lower pipe is welded on the head pipe, the other end of the lower pipe is welded on the five-way joint, one end of the upper fork is welded on the middle pipe, the other end of the upper fork is connected with the other end of the lower fork through the rear hook claw, one end of the lower fork is welded on the five-way joint, the five-way joint is welded on the middle pipe, and the head pipe, the middle pipe, the upper pipe, the lower pipe, the upper fork, the lower fork, the five-way joint and;
the preparation method of the frame comprises the following steps:
s1, preparing raw materials: selecting a 6J01 aluminum alloy pipe fitting, and pretreating the surface of the 6J01 aluminum alloy pipe fitting;
s2, blanking: blanking the pipe processed in the step S1, and extruding the pipe into a frame connecting piece through an extruder;
s3, tapping: carrying out tapping process treatment on the frame connecting piece in the S2;
s4, welding a frame: and welding the frame connecting piece processed in the step S3 to obtain a finished frame.
By adopting the technical scheme, the 6J01 aluminum alloy pipe fitting is adopted to replace a 6061 aluminum alloy pipe fitting, after the frame is welded, the frame does not need to be subjected to heat treatment and straightening processes, so that the production efficiency of the frame is improved, and meanwhile, the production cost is reduced.
Preferably, the preparation method of the 6J01 aluminum alloy pipe fitting comprises the following steps:
s101, material preparation: the raw materials are selected according to the following weight percentages: 0.55-0.75 wt% of Si, 0.45-0.55 wt% of Fe, 0.3-0.4 wt% of Cu, 0.2-0.25 wt% of Mn, 0.65-0.8 wt% of Mg, 0.35-0.45 wt% of Cr, 0.18-0.2 wt% of Ti, 0.01-0.06 wt% of Ga, 0.15-0.2 wt% of rare earth element Y and the balance of Al;
s102, mixing: putting the aluminum ingot into a smelting furnace for heating and melting, wherein the heating temperature is 480-540 ℃, the heating time is 16-24h, after the aluminum ingot is completely melted, sequentially adding Si, Fe, Cu, Mn, Mg, Cr, Ti, Ga and rare earth element Y, starting electromagnetic stirring in the adding process, the heating temperature is maintained at 720-780 ℃, and the heating time is 10-18 h;
s103, preparing an aluminum alloy ingot: in S102, the mixed solution is subjected to a dehydrogenation gas step to remove hydrogen in the solution, after dehydrogenation, slag discharge treatment is performed, the mixed solution is transferred to a holding furnace, and furnace side Ar + Cl is performed2Refining the mixed gas, enabling the components to be qualified and fully preparing the casting, standing the melt for 7-12h, carrying out online treatment at the melt temperature of 720-;
s104, homogenizing: placing the aluminum alloy ingot in homogenization treatment equipment, preserving heat for 5-10 hours at the temperature of 550-600 ℃, and carrying out homogenization treatment to prepare an aluminum alloy ingot subjected to homogenization treatment;
s105, extrusion forming: and heating the aluminum alloy ingot subjected to the S104 homogenization treatment to 330-540 ℃, extruding a section with a required shape and size by using an extruder, cutting and air-cooling to obtain a finished product of the 6J01 aluminum alloy pipe fitting.
By adopting the technical scheme, the 6J01 aluminum alloy pipe fitting is conveniently produced, and simultaneously, the tensile strength and the hardness of the aluminum alloy are increased by adding Ga and rare earth element Y.
Preferably, in s101, material preparation: the raw materials are selected according to the following weight percentages: 0.65 wt% Si, 0.5 wt% Fe, 0.35 wt% Cu, 0.22 wt% Mn, 0.7 wt% Mg, 0.4 wt% Cr, 0.19 wt% Ti, 0.04 wt% Ga and 0.18 wt% rare earth element Y, the balance being Al.
By adopting the technical scheme, the tensile strength and the hardness of the aluminum alloy are increased.
Preferably, in the melting process of the aluminum ingot in S102, electromagnetic stirring is started for the solution, and the material is heated and melted by using the induced electromagnetic effect of the material.
Through adopting above-mentioned technical scheme, conveniently stir the raw materials.
Preferably, the homogenization treatment equipment in S104 is a resistance furnace.
By adopting the technical scheme, homogenization treatment is conveniently carried out.
Preferably, the preprocessing in S1 includes the following steps: the surface of the 6J01 aluminum alloy pipe is sequentially polished by 600, 800 and 1200 meshes of sand paper, then the surface is wiped by using a wiping agent to remove oil stains, the surface is washed for 2 to 4 times by using deionized water after the oil stains are removed, and the surface is dried in an oven at the temperature of 110-.
Through adopting above-mentioned technical scheme, conveniently polish and deoiling the surface of 6J01 aluminum alloy pipe fitting.
Preferably, the wiping agent is prepared by mixing the following raw materials: 1.1-1.5 g of copper nitrate, 3.8-4.4 g of acetic acid, 170 ml of ethanol 140-.
Through adopting above-mentioned technical scheme, conveniently increase the sufficiency of deoiling.
Preferably, the tapping in S3 includes the following steps:
s301, clamping and positioning the 6J01 aluminum alloy pipe fitting to be processed on a rotary worktable;
s302, rotating a rotary working table to rotate a pipe fitting to a drilling station for drilling;
s304, drilling is finished, and the rotary workbench rotates again to rotate the 6J01 aluminum alloy pipe fitting to a tapping station for tapping;
s304, the rotary working table rotates the processed 6J01 aluminum alloy pipe fitting to a workpiece discharging station to perform workpiece discharging operation.
Through adopting above-mentioned technical scheme, conveniently carry out the tapping operation, save operating time, increase work efficiency.
Preferably, the welding of the frame in S4 specifically includes the following steps: and (4) assembling and welding the frame connecting piece processed in the step S3, firstly performing spot welding, then performing full welding, performing carbon dioxide and argon gas mixed gas shielded welding during full welding, polishing and polishing the welded welding line, and then performing spraying and drying treatment on the surface of the frame to obtain a finished frame.
Through adopting above-mentioned technical scheme, increased the security of welding and the connection stability between the welding back connecting piece.
Preferably, when the full welding is performed, the welding current is 210-250A, the welding speed is 220-300 mm/min, and the flow rate of the mixed gas of carbon dioxide and argon is 7-12L/min.
By adopting the technical scheme, the welding is convenient, and the safety during welding is improved.
In summary, the invention mainly has the following beneficial effects: according to the invention, 6J01 aluminum alloy pipe is adopted to replace 6061 aluminum alloy pipe, and after the frame is welded, the frame does not need to be subjected to heat treatment and straightening processes, so that the production efficiency of the frame is improved, and the production cost is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a process flow diagram of the present invention.
Reference numerals: 1. a head pipe; 2. a middle tube; 3. feeding a pipe; 4. a lower pipe; 5. an upper fork; 6. a lower fork; 7. five-way connection; 8. and a rear claw.
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.
Example 1
Referring to fig. 1-2, a novel light-weight high-strength frame comprises a head tube 1, a middle tube 2, an upper tube 3, a lower tube 4, an upper fork 5, a lower fork 6, a five-way tube 7 and a rear hook claw 8, one end of the upper tube 3 is welded on the head tube 1, the other end of the upper tube 3 is welded on the middle tube 2, one end of the lower pipe 4 is welded on the head pipe 1, the other end of the lower pipe 4 is welded on the five-way valve 7, one end of the upper fork 5 is welded on the middle pipe 2, the other end of the upper fork 5 is connected with the other end of the lower fork 6 through the rear hook claw 8, one end of the lower fork 6 is welded on the five-way joint 7, the five-way joint 7 is welded on the middle pipe 2, the head tube 1, the middle tube 2, the upper tube 3, the lower tube 4, the upper fork 5, the lower fork 6, the five-way joint 7 and the rear hook claw 8 are all made of 6J01 aluminum alloy pipe fittings;
the preparation method of the frame comprises the following steps:
s1, preparing raw materials: selecting a 6J01 aluminum alloy pipe fitting, and pretreating the surface of the 6J01 aluminum alloy pipe fitting;
s2, blanking: blanking the pipe processed in the step S1, and extruding the pipe into a frame connecting piece through an extruder;
s3, tapping: carrying out tapping process treatment on the frame connecting piece in the S2;
s4, welding a frame: and welding the frame connecting piece processed in the step S3 to obtain a finished frame.
In order to produce 6J01 aluminum alloy pipe conveniently, Ga and rare earth element Y are added to increase the tensile strength and hardness of the aluminum alloy; the preparation method of the 6J01 aluminum alloy pipe fitting comprises the following steps:
s101, material preparation: the raw materials are selected according to the following weight percentages: 0.55 wt% Si, 0.45 wt% Fe, 0.3 wt% Cu, 0.2 wt% Mn, 0.65 wt% Mg, 0.35 wt% Cr, 0.18 wt% Ti, 0.01 wt% Ga and 0.15 wt% rare earth element Y, the balance being Al;
s102, mixing: putting an aluminum ingot into a smelting furnace for heating and melting, wherein the heating temperature is 480 ℃, the heating time is 16h, after the aluminum ingot is completely melted, sequentially adding Si, Fe, Cu, Mn, Mg, Cr, Ti, Ga and a rare earth element Y, starting electromagnetic stirring in the adding process, keeping the heating temperature at 720 ℃, and heating for 10 h;
s103, preparing an aluminum alloy ingot: performing a dehydrogenation gas process on the mixed solution in the step S102, removing hydrogen in the solution, performing slag discharge treatment after dehydrogenation, transferring the mixed solution to a holding furnace, performing furnace side Ar + Cl 2 mixed gas refining, standing the melt for 7 hours after the components are qualified and the casting preparation is full, performing online treatment at the melt temperature of 720 ℃, and casting into an aluminum alloy ingot;
s104, homogenizing: placing the aluminum alloy ingot in homogenization treatment equipment, preserving heat for 5 hours at 550 ℃, and carrying out homogenization treatment to obtain an aluminum alloy ingot subjected to homogenization treatment;
s105, extrusion forming: and heating the aluminum alloy cast ingot subjected to the S104 homogenization treatment to 330 ℃, extruding a section with a required shape and size by using an extruder, cutting and air-cooling to obtain a 6J01 aluminum alloy pipe fitting finished product.
The raw materials are stirred conveniently; and in the S102 aluminum ingot melting process, electromagnetic stirring is started on the solution, and the material is heated and melted by utilizing the induction electrothermal effect of the material.
For convenience of carrying out homogenization treatment; the homogenization treatment equipment in S104 is a resistance furnace.
The surface of the 6J01 aluminum alloy pipe fitting is conveniently polished and deoiled; the preprocessing in S1 includes the steps of: the surface of the 6J01 aluminum alloy pipe fitting is sequentially polished by 600, 800 and 1200 meshes of sand paper, then the surface is wiped by using a wiping agent, oil stain is removed, the surface is washed for 2 times by using deionized water after the oil is removed, and the surface is dried in a drying oven at the temperature of 110 ℃.
The sufficiency of oil removal is increased conveniently; the wiping agent is prepared by mixing the following raw materials: 1.1 g of copper nitrate, 3.8 g of acetic acid, 140 ml of ethanol and 20 ml of deionized water.
The tapping operation is convenient, the working time is saved, and the working efficiency is increased; the tapping in the step S3 comprises the following specific steps:
s301, clamping and positioning the 6J01 aluminum alloy pipe fitting to be processed on a rotary worktable;
s302, rotating a rotary working table to rotate a pipe fitting to a drilling station for drilling;
s304, drilling is finished, and the rotary workbench rotates again to rotate the 6J01 aluminum alloy pipe fitting to a tapping station for tapping;
s304, the rotary working table rotates the processed 6J01 aluminum alloy pipe fitting to a workpiece discharging station to perform workpiece discharging operation.
In order to increase the safety of welding and the connection stability between connecting pieces after welding; the welding of the frame in the S4 specifically comprises the following steps: and (4) assembling and welding the frame connecting piece processed in the step S3, firstly performing spot welding, then performing full welding, performing carbon dioxide and argon gas mixed gas shielded welding during full welding, polishing and polishing the welded welding line, and then performing spraying and drying treatment on the surface of the frame to obtain a finished frame.
The welding is convenient, and the safety during welding is improved; when the full-welding is carried out, the welding current is 210A, the welding speed is 220mm/min, and the flow of the mixed gas of carbon dioxide and argon is 7L/min.
Example 2
Referring to fig. 1-2, a novel light-weight high-strength frame comprises a head tube 1, a middle tube 2, an upper tube 3, a lower tube 4, an upper fork 5, a lower fork 6, a five-way tube 7 and a rear hook claw 8, one end of the upper tube 3 is welded on the head tube 1, the other end of the upper tube 3 is welded on the middle tube 2, one end of the lower pipe 4 is welded on the head pipe 1, the other end of the lower pipe 4 is welded on the five-way valve 7, one end of the upper fork 5 is welded on the middle pipe 2, the other end of the upper fork 5 is connected with the other end of the lower fork 6 through the rear hook claw 8, one end of the lower fork 6 is welded on the five-way joint 7, the five-way joint 7 is welded on the middle pipe 2, the head tube 1, the middle tube 2, the upper tube 3, the lower tube 4, the upper fork 5, the lower fork 6, the five-way joint 7 and the rear hook claw 8 are all made of 6J01 aluminum alloy pipe fittings;
the preparation method of the frame comprises the following steps:
s1, preparing raw materials: selecting a 6J01 aluminum alloy pipe fitting, and pretreating the surface of the 6J01 aluminum alloy pipe fitting;
s2, blanking: blanking the pipe processed in the step S1, and extruding the pipe into a frame connecting piece through an extruder;
s3, tapping: carrying out tapping process treatment on the frame connecting piece in the S2;
s4, welding a frame: and welding the frame connecting piece processed in the step S3 to obtain a finished frame.
In order to produce 6J01 aluminum alloy pipe conveniently, Ga and rare earth element Y are added to increase the tensile strength and hardness of the aluminum alloy; the preparation method of the 6J01 aluminum alloy pipe fitting comprises the following steps:
s101, material preparation: the raw materials are selected according to the following weight percentages: 0.75 wt% Si, 0.55 wt% Fe, 0.4 wt% Cu, 0.25 wt% Mn, 0.8 wt% Mg, 0.45 wt% Cr, 0.2 wt% Ti, 0.06 wt% Ga and 0.2 wt% rare earth element Y, the balance being Al;
s102, mixing: putting the aluminum ingot into a smelting furnace for heating and melting, wherein the heating temperature is 540 ℃, the heating time is 24h, after the aluminum ingot is completely melted, sequentially adding Si, Fe, Cu, Mn, Mg, Cr, Ti, Ga and a rare earth element Y, starting electromagnetic stirring in the adding process, keeping the heating temperature at 780 ℃, and heating for 18 h;
s103, preparing an aluminum alloy ingot: performing a dehydrogenation gas process on the mixed solution in the S102, removing hydrogen in the solution, performing slag discharge treatment after dehydrogenation, transferring the mixed solution to a holding furnace, performing furnace side Ar + Cl 2 mixed gas refining, standing the melt for 12h after the components are qualified and the casting preparation is full, performing online treatment at the melt temperature of 740 ℃, and casting into an aluminum alloy ingot;
s104, homogenizing: placing the aluminum alloy ingot in homogenization treatment equipment, preserving heat for 10 hours at the temperature of 600 ℃, and carrying out homogenization treatment to obtain an aluminum alloy ingot subjected to homogenization treatment;
s105, extrusion forming: and heating the aluminum alloy cast ingot subjected to the S104 homogenization treatment to 540 ℃, extruding a section with a required shape and size by using an extruder, cutting and air-cooling to obtain a 6J01 aluminum alloy pipe fitting finished product.
The raw materials are stirred conveniently; and in the S102 aluminum ingot melting process, electromagnetic stirring is started on the solution, and the material is heated and melted by utilizing the induction electrothermal effect of the material.
For convenience of carrying out homogenization treatment; the homogenization treatment equipment in S104 is a resistance furnace.
The surface of the 6J01 aluminum alloy pipe fitting is conveniently polished and deoiled; the preprocessing in S1 includes the steps of: the surface of the 6J01 aluminum alloy pipe fitting is sequentially polished by 600, 800 and 1200 meshes of sand paper, then the surface is wiped by using a wiping agent, oil stain is removed, the surface is washed for 4 times by using deionized water after the oil is removed, and the surface is dried in an oven at the temperature of 140 ℃.
The sufficiency of oil removal is increased conveniently; the wiping agent is prepared by mixing the following raw materials: 1.5 g of copper nitrate, 4.4 g of acetic acid, 170 ml of ethanol and 40 ml of deionized water.
The tapping operation is convenient, the working time is saved, and the working efficiency is increased; the tapping in the step S3 comprises the following specific steps:
s301, clamping and positioning the 6J01 aluminum alloy pipe fitting to be processed on a rotary worktable;
s302, rotating a rotary working table to rotate a pipe fitting to a drilling station for drilling;
s304, drilling is finished, and the rotary workbench rotates again to rotate the 6J01 aluminum alloy pipe fitting to a tapping station for tapping;
s304, the rotary working table rotates the processed 6J01 aluminum alloy pipe fitting to a workpiece discharging station to perform workpiece discharging operation.
In order to increase the safety of welding and the connection stability between connecting pieces after welding; the welding of the frame in the S4 specifically comprises the following steps: and (4) assembling and welding the frame connecting piece processed in the step S3, firstly performing spot welding, then performing full welding, performing carbon dioxide and argon gas mixed gas shielded welding during full welding, polishing and polishing the welded welding line, and then performing spraying and drying treatment on the surface of the frame to obtain a finished frame.
The welding is convenient, and the safety during welding is improved; when the full-welding is carried out, the welding current is 250A, the welding speed is 300mm/min, and the flow of the mixed gas of carbon dioxide and argon is 12L/min.
Example 3
Referring to fig. 1-2, a novel light-weight high-strength frame comprises a head tube 1, a middle tube 2, an upper tube 3, a lower tube 4, an upper fork 5, a lower fork 6, a five-way tube 7 and a rear hook claw 8, one end of the upper tube 3 is welded on the head tube 1, the other end of the upper tube 3 is welded on the middle tube 2, one end of the lower pipe 4 is welded on the head pipe 1, the other end of the lower pipe 4 is welded on the five-way valve 7, one end of the upper fork 5 is welded on the middle pipe 2, the other end of the upper fork 5 is connected with the other end of the lower fork 6 through the rear hook claw 8, one end of the lower fork 6 is welded on the five-way joint 7, the five-way joint 7 is welded on the middle pipe 2, the head tube 1, the middle tube 2, the upper tube 3, the lower tube 4, the upper fork 5, the lower fork 6, the five-way joint 7 and the rear hook claw 8 are all made of 6J01 aluminum alloy pipe fittings;
the preparation method of the frame comprises the following steps:
s1, preparing raw materials: selecting a 6J01 aluminum alloy pipe fitting, and pretreating the surface of the 6J01 aluminum alloy pipe fitting;
s2, blanking: blanking the pipe processed in the step S1, and extruding the pipe into a frame connecting piece through an extruder;
s3, tapping: carrying out tapping process treatment on the frame connecting piece in the S2;
s4, welding a frame: and welding the frame connecting piece processed in the step S3 to obtain a finished frame.
In order to produce 6J01 aluminum alloy pipe conveniently, Ga and rare earth element Y are added to increase the tensile strength and hardness of the aluminum alloy; the preparation method of the 6J01 aluminum alloy pipe fitting comprises the following steps:
s101, material preparation: the raw materials are selected according to the following weight percentages: 0.65 wt% Si, 0.5 wt% Fe, 0.35 wt% Cu, 0.22 wt% Mn, 0.7 wt% Mg, 0.4 wt% Cr, 0.19 wt% Ti, 0.04 wt% Ga and 0.18 wt% rare earth element Y, the balance being Al;
s102, mixing: putting an aluminum ingot into a smelting furnace for heating and melting, wherein the heating temperature is 500 ℃, the heating time is 20h, after the aluminum ingot is completely melted, sequentially adding Si, Fe, Cu, Mn, Mg, Cr, Ti, Ga and a rare earth element Y, starting electromagnetic stirring in the adding process, keeping the heating temperature at 760 ℃, and heating for 16 h;
s103, preparing an aluminum alloy ingot: performing a dehydrogenation gas process on the mixed solution in the step S102, removing hydrogen in the solution, performing slag discharge treatment after dehydrogenation, transferring the mixed solution to a holding furnace, performing furnace side Ar + Cl 2 mixed gas refining, standing the melt for 8 hours after the components are qualified and the casting preparation is full, performing online treatment at the melt temperature of 730 ℃, and casting into an aluminum alloy ingot;
s104, homogenizing: placing the aluminum alloy ingot in homogenization treatment equipment, preserving heat for 7 hours at 570 ℃, and carrying out homogenization treatment to obtain an aluminum alloy ingot subjected to homogenization treatment;
s105, extrusion forming: and heating the aluminum alloy cast ingot subjected to the S104 homogenization treatment to 440 ℃, extruding a section with a required shape and size by using an extruder, cutting and air-cooling to obtain a 6J01 aluminum alloy pipe fitting finished product.
The raw materials are stirred conveniently; and in the S102 aluminum ingot melting process, electromagnetic stirring is started on the solution, and the material is heated and melted by utilizing the induction electrothermal effect of the material.
For convenience of carrying out homogenization treatment; the homogenization treatment equipment in S104 is a resistance furnace.
The surface of the 6J01 aluminum alloy pipe fitting is conveniently polished and deoiled; the preprocessing in S1 includes the steps of: the surface of the 6J01 aluminum alloy pipe fitting is sequentially polished by 600, 800 and 1200 meshes of sand paper, then the surface is wiped by using a wiping agent, oil stain is removed, the surface is washed for 3 times by using deionized water after the oil is removed, and the surface is dried in an oven at the temperature of 130 ℃.
The sufficiency of oil removal is increased conveniently; the wiping agent is prepared by mixing the following raw materials: 1.3 g of copper nitrate, 4 g of acetic acid, 160 ml of ethanol and 30 ml of deionized water.
The tapping operation is convenient, the working time is saved, and the working efficiency is increased; the tapping in the step S3 comprises the following specific steps:
s301, clamping and positioning the 6J01 aluminum alloy pipe fitting to be processed on a rotary worktable;
s302, rotating a rotary working table to rotate a pipe fitting to a drilling station for drilling;
s304, drilling is finished, and the rotary workbench rotates again to rotate the 6J01 aluminum alloy pipe fitting to a tapping station for tapping;
s304, the rotary working table rotates the processed 6J01 aluminum alloy pipe fitting to a workpiece discharging station to perform workpiece discharging operation.
In order to increase the safety of welding and the connection stability between connecting pieces after welding; the welding of the frame in the S4 specifically comprises the following steps: and (4) assembling and welding the frame connecting piece processed in the step S3, firstly performing spot welding, then performing full welding, performing carbon dioxide and argon gas mixed gas shielded welding during full welding, polishing and polishing the welded welding line, and then performing spraying and drying treatment on the surface of the frame to obtain a finished frame.
The welding is convenient, and the safety during welding is improved; when the full-welding is carried out, the welding current is 240A, the welding speed is 260mm/min, and the flow of the mixed gas of carbon dioxide and argon is 9L/min.
The use principle and the advantages are as follows:
according to the invention, 6J01 aluminum alloy pipe is adopted to replace 6061 aluminum alloy pipe, and after the frame is welded, the frame does not need to be subjected to heat treatment and straightening processes, so that the production efficiency of the frame is improved, and the production cost is reduced.
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 (10)
1. The utility model provides a novel light high strength frame which characterized in that: the frame includes first pipe (1), well pipe (2), top tube (3), low tube (4), goes up fork (5), lower fork (6), five-way (7) and back collude claw (8), the one end welding of top tube (3) is in on first pipe (1), the other end welding of top tube (3) is in on well pipe (2), the one end welding of low tube (4) is in on first pipe (1), the other end welding of low tube (4) is in on five-way (7), the one end welding of going up fork (5) is in on well pipe (2), the other end of going up fork (5) with the other end of fork (6) down passes through after collude claw (8) and connects, the one end welding of fork (6) down is in on five-way (7), five-way (7) welding is in well pipe (2), first pipe (1), well pipe (2), The upper pipe (3), the lower pipe (4), the upper fork (5), the lower fork (6), the five-way joint (7) and the rear hook claw (8) are all made of 6J01 aluminum alloy pipe fittings;
the preparation method of the frame comprises the following steps:
s1, preparing raw materials: selecting a 6J01 aluminum alloy pipe fitting, and pretreating the surface of the 6J01 aluminum alloy pipe fitting;
s2, blanking: blanking the pipe processed in the step S1, and extruding the pipe into a frame connecting piece through an extruder;
s3, tapping: carrying out tapping process treatment on the frame connecting piece in the S2;
s4, welding a frame: and welding the frame connecting piece processed in the step S3 to obtain a finished frame.
2. The novel light-weight high-strength vehicle frame according to claim 1, characterized in that: the preparation method of the 6J01 aluminum alloy pipe fitting comprises the following steps:
s101, material preparation: the raw materials are selected according to the following weight percentages: 0.55-0.75 wt% of Si, 0.45-0.55 wt% of Fe, 0.3-0.4 wt% of Cu, 0.2-0.25 wt% of Mn, 0.65-0.8 wt% of Mg, 0.35-0.45 wt% of Cr, 0.18-0.2 wt% of Ti, 0.01-0.06 wt% of Ga, 0.15-0.2 wt% of rare earth element Y and the balance of Al;
s102, mixing: putting the aluminum ingot into a smelting furnace for heating and melting, wherein the heating temperature is 480-540 ℃, the heating time is 16-24h, after the aluminum ingot is completely melted, sequentially adding Si, Fe, Cu, Mn, Mg, Cr, Ti, Ga and rare earth element Y, starting electromagnetic stirring in the adding process, the heating temperature is maintained at 720-780 ℃, and the heating time is 10-18 h;
s103, preparing an aluminum alloy ingot: performing a dehydrogenation gas process on the mixed solution in S102, removing hydrogen in the solution, performing slag removal treatment after dehydrogenation, transferring the mixed solution to a holding furnace, performing furnace side Ar + Cl 2 mixed gas refining, standing the melt for 7-12h after the components are qualified and the casting preparation is sufficient, performing online treatment at the melt temperature of 720-740 ℃, and casting into an aluminum alloy ingot;
s104, homogenizing: placing the aluminum alloy ingot in homogenization treatment equipment, preserving heat for 5-10 hours at the temperature of 550-600 ℃, and carrying out homogenization treatment to prepare an aluminum alloy ingot subjected to homogenization treatment;
s105, extrusion forming: and heating the aluminum alloy ingot subjected to the S104 homogenization treatment to 330-540 ℃, extruding a section with a required shape and size by using an extruder, cutting and air-cooling to obtain a finished product of the 6J01 aluminum alloy pipe fitting.
3. The novel light-weight high-strength vehicle frame according to claim 2, characterized in that: s101, material preparation: the raw materials are selected according to the following weight percentages: 0.65 wt% Si, 0.5 wt% Fe, 0.35 wt% Cu, 0.22 wt% Mn, 0.7 wt% Mg, 0.4 wt% Cr, 0.19 wt% Ti, 0.04 wt% Ga and 0.18 wt% rare earth element Y, the balance being Al.
4. The novel light-weight high-strength vehicle frame according to claim 2, characterized in that: and in the S102 aluminum ingot melting process, electromagnetic stirring is started on the solution, and the material is heated and melted by utilizing the induction electrothermal effect of the material.
5. The novel light-weight high-strength vehicle frame according to claim 2, characterized in that: the homogenization treatment equipment in S104 is a resistance furnace.
6. The novel light-weight high-strength vehicle frame according to claim 1, characterized in that: the preprocessing in S1 includes the steps of: the surface of the 6J01 aluminum alloy pipe is sequentially polished by 600, 800 and 1200 meshes of sand paper, then the surface is wiped by using a wiping agent to remove oil stains, the surface is washed for 2 to 4 times by using deionized water after the oil stains are removed, and the surface is dried in an oven at the temperature of 110-.
7. The novel light-weight high-strength vehicle frame according to claim 6, characterized in that: the wiping agent is prepared by mixing the following raw materials: 1.1-1.5 g of copper nitrate, 3.8-4.4 g of acetic acid, 170 ml of ethanol 140-.
8. The novel light-weight high-strength vehicle frame according to claim 1, characterized in that: the tapping in the step S3 comprises the following specific steps:
s301, clamping and positioning the 6J01 aluminum alloy pipe fitting to be processed on a rotary worktable;
s302, rotating a rotary working table to rotate a pipe fitting to a drilling station for drilling;
s304, drilling is finished, and the rotary workbench rotates again to rotate the 6J01 aluminum alloy pipe fitting to a tapping station for tapping;
s304, the rotary working table rotates the processed 6J01 aluminum alloy pipe fitting to a workpiece discharging station to perform workpiece discharging operation.
9. The novel light-weight high-strength vehicle frame according to claim 1, characterized in that: the welding of the frame in the S4 specifically comprises the following steps: and (4) assembling and welding the frame connecting piece processed in the step S3, firstly performing spot welding, then performing full welding, performing carbon dioxide and argon gas mixed gas shielded welding during full welding, polishing and polishing the welded welding line, and then performing spraying and drying treatment on the surface of the frame to obtain a finished frame.
10. The novel light-weight high-strength vehicle frame according to claim 9, characterized in that: when the full welding is carried out, the welding current is 210-250A, the welding speed is 220-300 mm/min, and the flow of the mixed gas of carbon dioxide and argon is 7-12L/min.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113878203A (en) * | 2021-09-17 | 2022-01-04 | 无锡振强机车部件制造有限公司 | Lightweight frame production test method and production test system thereof |
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Application publication date: 20210709 |