Unlock instant, AI-driven research and patent intelligence for your innovation.

Method and device for machining curved profiles in combination with online quenching temperature control in short flow

A processing method and short process technology, applied in the field of material processing engineering, can solve the problems of low production efficiency and difficult to guarantee product size, and achieve the effect of improving production efficiency and product yield, ensuring bending performance and good bending performance.

Active Publication Date: 2010-12-08
CHANGSHA ZHONGTENG METAL MATERIALS TECH
View PDF7 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The technical problem to be solved by the present invention is to address the defects of the existing technology, including the low production efficiency of traditional profile bending, the difficulty in ensuring product size, and the cross-sectional deformation and surface scratches existing in the existing extrusion-bending integrated forming. Problem, a short-process processing method and device for bending profiles combined with on-line quenching and temperature control are proposed; it combines the extrusion, bending and quenching of profiles organically, and can produce qualified bending extrusions from extrusion billets through one process Profiles, through the online quenching device, the bending deformation temperature of the profiles is controlled at a moderate level, which not only has good formability, but also reduces defects such as springback, section deformation, and surface scratches, and at the same time completes online quenching; thereby improving production efficiency and product yield, reduce production costs

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and device for machining curved profiles in combination with online quenching temperature control in short flow
  • Method and device for machining curved profiles in combination with online quenching temperature control in short flow
  • Method and device for machining curved profiles in combination with online quenching temperature control in short flow

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Embodiment 1: with the method of the present invention, install the short-process processing device of the curved profile described in conjunction with on-line quenching temperature control at the outlet position of 2750T extruder (referring to figure 1 and figure 2 ), extruded 6063 aluminum alloy "mesh" profile, the diameter of the extruded billet was 203mm, and the length was 300mm. The initial extrusion temperature of the billet is 500°C, the initial temperature of the extrusion die is 450°C, the initial temperature of the extrusion cylinder and the extrusion pad is 420°C, the extrusion speed is 4mm / s, and the quenching medium is water mist; the initial end of the online quenching zone and The relative distance (D) between the starting ends of the bending deformation zone is 0.6m. The radius of curvature of the three sections of the "me" profile is 538mm, 1966mm, and 538mm in turn. After forming, the radii of curvature of the three sections of arc are 540mm and 1970...

Embodiment 2

[0049] Embodiment 2: with the method of the present invention, install the described curved profile short-process processing device (referring to figure 1 and figure 2 ), extruded 6061 aluminum alloy "mesh" profile, the diameter of the extruded billet was 203mm, and the length was 300mm. The initial extrusion temperature of the billet is 500°C, the initial temperature of the extrusion die is 450°C, the initial temperature of the extrusion cylinder and the extrusion pad is 420°C, the extrusion speed is 4mm / s, the quenching medium is water column injection, and the initial end of the online quenching zone is connected to the The relative distance (D) between the starting ends of the bending deformation zone is 0.2m. The curvature radii of the two arcs of the bent 6061 aluminum alloy "mesh" profile are 160mm and 160mm respectively, and the rest are straight lines. The radius of curvature of the two arcs after forming They are 157mm and 156mm in turn, which can meet the assembly...

Embodiment 3

[0050] Embodiment 3: Using the method of the present invention, install the short-process processing device for curved profiles combined with online quenching and temperature control at the die outlet of the 2750T extruder, extrude 6061 aluminum alloy special-shaped "mesh" profile, and extrude The blank has a diameter of 198mm and a length of 500mm. The initial extrusion temperature of the billet is 500°C, the initial temperature of the extrusion die is 460°C, the initial temperature of the extrusion cylinder and the extrusion pad is 430°C, the extrusion speed is 4mm / s, the quenching medium is water column injection, and the initial end of the online quenching zone is connected to the The relative distance (D) between the starting ends of the bending deformation zone is 0.15m. When bending 6061 aluminum alloy special-shaped "mesh" profile, the curvature radii of the three sections of arcs are 1083mm, 3384mm, and 1083mm. After forming, the radii of curvature of the three section...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
lengthaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention provides a method and a device for machining curved profiles in combination with online quenching temperature control in a short flow. Through the method and the device, the extrusion, curving and quenching of the profiles are organically combined, and qualified curved profiles can be machined by once machining. Metal blanks are extruded into the profiles with different sections after passing through an extrusion mould, and the profiles are curved under the action of external forces at an extrusion outlet; and simultaneously, an online quenching device is arranged at the outlet of an extruder, and the temperature of the extruded profiles entering a curving deformation region is controlled by regulating relative positions of the online quenching device and the curving deformation region and controlling types and flows of quenching mediums so as to make the curved profiles at proper curving deformation temperature, ensure high curving performance and avoid curving springback. The method and the device also have the advantages of preventing the overhight temperature of the profiles from causing the section collapse and surface scratch of the profiles during the curving, improving the production efficiency and the yield of the products and reducing the production cost.

Description

technical field [0001] The invention relates to the field of material processing engineering, and specifically refers to a method and a device for realizing the scientific combination of extrusion, bending and quenching, and producing qualified curved profiles from extrusion blanks through one process. Background technique [0002] For a long time, aluminum alloy profiles have been mainly used for civil building profiles, and civil building profiles can be used directly after extrusion and straightening without subsequent bending. With the development of the automobile industry and the resulting problems of energy consumption, emission, environmental protection and safety, aluminum frame structure body has been paid more and more attention by automobile manufacturers because of its advantages of light weight and good impact resistance. Due to the needs of the body shape, the body frame is often used after bending. Therefore, profile bending has gradually become a research h...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B21C23/02C21D1/18
Inventor 李落星周佳王冠
Owner CHANGSHA ZHONGTENG METAL MATERIALS TECH