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Extrusion machining method for automobile anti-collision beam

A technology of extrusion processing and anti-collision beams, which is applied in the direction of manufacturing tools, furnaces, furnace types, etc., can solve the production problems of anti-collision beams and other automotive components, and it is difficult to meet high quality, high strength, high elastic modulus and other problems , to achieve the effect of eliminating impurities and appearance defects, reducing product defects and improving the qualified rate

Pending Publication Date: 2021-05-18
HUAIAN HETONG AUTOMOTIVE COMPONENTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, many problems in the existing technology have brought great troubles to the production of aluminum alloy automobile anti-collision beams and other automobile components, and it is difficult to meet the requirements of related products for high quality, high strength and high elastic modulus.

Method used

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  • Extrusion machining method for automobile anti-collision beam
  • Extrusion machining method for automobile anti-collision beam
  • Extrusion machining method for automobile anti-collision beam

Examples

Experimental program
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Effect test

Embodiment 1

[0039] This embodiment provides a method for extrusion processing of an automobile anti-collision beam, comprising the following steps:

[0040] Pretreatment: Peel the aluminum rods to remove skin impurities;

[0041] Preheating: first put the aluminum rod into the gas preheating furnace (Zhaoqing Keda Machinery Manufacturing Co., Ltd.) for primary heating, set the heating temperature to 320 ° C, and the heating time to 2 hours, then put the aluminum rod into the intermediate frequency heating furnace (OTTO JUNKER company) for secondary heating, using the stepped heating method, setting the heating temperature of the head of the aluminum rod to 530-535°C, the heating temperature of the tail of the aluminum rod to 480-485°C, and the time of secondary heating to 6min;

[0042] Extrusion: After preheating, put the aluminum rod into the extruder for extrusion, set the advancing speed of the extrusion head to 2.8mm / s, the temperature of the ingot barrel to 420°C, and the temperatur...

Embodiment 2

[0046] This embodiment provides a method for extrusion processing of an automobile anti-collision beam, comprising the following steps:

[0047] Pretreatment: Peel the aluminum rods to remove skin impurities;

[0048] Preheating: First put the aluminum rod into the gas preheating furnace for primary heating, set the heating temperature to 350°C, and the heating time for 2.5h, then put the aluminum rod into the intermediate frequency heating furnace for secondary heating, using step heating method, set the heating temperature of the head of the aluminum rod to 525-530°C, the heating temperature of the tail of the aluminum rod to 475-480°C, and the secondary heating time to 6 minutes;

[0049] Extrusion: After preheating, put the aluminum rod into the extruder for extrusion, set the advancing speed of the extrusion head to 2.8mm / s, the temperature of the ingot barrel to 395°C, and the temperature of the discharge port to 550°C , during the extrusion process, the mold is cooled wi...

Embodiment 3

[0053] This embodiment provides a method for extrusion processing of an automobile anti-collision beam, comprising the following steps:

[0054] Pretreatment: Peel the aluminum rods to remove skin impurities;

[0055] Preheating: first put the aluminum rod into the gas preheating furnace for primary heating, set the heating temperature to 315°C, and heat for 3 hours, then put the aluminum rod into the intermediate frequency heating furnace for secondary heating, adopting the method of step heating , set the heating temperature of the head of the aluminum rod to 525-530°C, the heating temperature of the tail of the aluminum rod to 475-480°C, and the secondary heating time to 6 minutes;

[0056] Extrusion: After preheating, put the aluminum rod into the extrusion machine for extrusion, set the advancing speed of the extrusion head to 2.5mm / s, the temperature of the ingot barrel to 395°C, and the temperature of the discharge port to 550°C , during the extrusion process, the mold...

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Abstract

The invention belongs to the technical field of automobile component machining, and particularly relates to an extrusion machining method for an automobile anti-collision beam. The method sequentially comprises pretreatment, preheating, extrusion, quenching and post-treatment. The preheating is graded heating, the temperature of first-stage heating ranges from 300 DEG C to 350 DEG C, the temperature of second-stage heating ranges from 460 DEG C to 550 DEG C, an electric heating furnace or a gas preheating furnace is adopted in the first-stage heating, and a permanent magnet heating furnace or a power frequency heating furnace is adopted in the second-stage heating. In the extrusion process, the temperature of an ingot containing barrel is set to range from 250 DEG C to 450 DEG C, and the temperature of a discharging port is set to range from 500 DEG C to 580 DEG C. According to the extrusion machining method for the automobile anti-collision beam, when an aluminum bar is preheated, a graded heating method is adopted, different heating furnaces are adopted for low-temperature heating and then high-temperature heating in sequence, it can be guaranteed that the aluminum bar is heated evenly, the mechanical property of a product can be improved, and product defects are lessened; and meanwhile, through control over the parameters such as the extrusion discharging temperature, the propelling speed and the mold liquid nitrogen amount, it is guaranteed that an aluminum alloy material is subjected to sufficient solid solution, and the product has higher strength and better mechanical property.

Description

technical field [0001] The invention belongs to the technical field of automobile component processing, and in particular relates to an extrusion processing method of an automobile anti-collision beam. Background technique [0002] With the continuous development and progress of the automobile industry, the requirements for the economy, comfort and handling of automobiles are getting higher and higher, and the lightweight of automobile bodies has become an important goal pursued by the field of automobile manufacturing. Aluminum alloy materials have become the preferred structural material for lightweight vehicles because of their advantages such as high specific strength, low cost, and easy processing. [0003] The car anti-collision beam is an important part of the car protection device, which can play a buffer role in the collision of the vehicle, which not only protects the vehicle but also reduces the damage to the collision object. This requires that the anti-collisio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C29/00B21C23/04C21D9/00
CPCB21C29/003B21C23/04C21D9/00
Inventor 郑达李中罗红来
Owner HUAIAN HETONG AUTOMOTIVE COMPONENTS CO LTD
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