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Soaking high-temperature production method for 6-series automobile plate

A production method and automobile technology, applied in the field of automobile plate processing, can solve the problems of inconvenient production of automobile plates, uneven grain structure, unstable performance, etc., so as to save homogenization processing time, improve internal quality and improve product quality Effect

Inactive Publication Date: 2021-07-02
SHANDONG NANSHAN ALUMINUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The domestic auto sheet business has just started and is in the stage of market research and development and small batch application. There are already mature technical solutions abroad, because the use of auto sheets has high requirements on material performance, edge wrapping, bending, surface and material formability At present, in the production and processing of automobile panels in China, the grain structure obtained by using the existing processing methods is relatively coarse, the performance is unstable, and the product quality is low, which brings inconvenience to the production of domestic automobile panels.

Method used

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  • Soaking high-temperature production method for 6-series automobile plate
  • Soaking high-temperature production method for 6-series automobile plate
  • Soaking high-temperature production method for 6-series automobile plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Step 1: Melting and casting: put the raw materials into the smelting furnace for preheating, the preheating temperature is 400°C, the preheating time is 40 minutes, heat the preheated raw materials, and add an appropriate amount of master alloy, the heating temperature is 630°C, the heating time 150min; transfer the melted molten metal to the holding furnace for refining and slag removal, the refining temperature is 700°C, and the refining time is 20min; the qualified molten aluminum is cast according to the specified process, the casting temperature is 660°C, and the casting speed is 40mm / min;

[0030] Step 2: Homogenization treatment of the large slab: the homogenization treatment temperature is 500°C, and the holding time is 2h;

[0031] Step 3: Face milling of the large flat ingot, the milling method is four-side milling or eight-side milling, the large face milling amount is 10mm, and the small face milling amount is 3mm;

[0032] Step 4: Heating in the large sla...

Embodiment 2

[0036] Step 1: Melting and casting: put the raw materials into the smelting furnace for preheating, the preheating temperature is 450°C, the preheating time is 50 minutes, heat the preheated raw materials, and add an appropriate amount of master alloy, the heating temperature is 700°C, the heating time 175min; transfer the melted molten metal to the holding furnace for refining and slag removal, the refining temperature is 730°C, and the refining time is 55min; the qualified molten aluminum is cast according to the specified process, the casting temperature is 690°C, and the casting speed is 50mm / min;

[0037] Step 2: Homogenization treatment of the large slab: the homogenization treatment temperature is 550°C, and the holding time is 11h;

[0038] Step 3: Face milling of the large flat ingot, the milling method is four-sided milling or eight-sided milling, the milling amount of the large face is 18mm, and the milling amount of the small face is 9mm;

[0039] Step 4: Heating...

Embodiment 3

[0043] Step 1: Melting and casting: put the raw materials into the smelting furnace for preheating, the preheating temperature is 500°C, the preheating time is 60 minutes, heat the preheated raw materials, and add an appropriate amount of master alloy, the heating temperature is 775°C, the heating time 200min; transfer the melted molten metal to the holding furnace for refining and slag removal, the refining temperature is 760°C, and the refining time is 90min; the qualified molten aluminum is cast according to the specified process, the casting temperature is 720°C, and the casting speed is 60mm / min;

[0044] Step 2: Large slab homogenization treatment: the homogenization treatment temperature is 600°C, and the holding time is 20h;

[0045] Step 3: Face milling of the large flat ingot, the milling method is four-side milling or eight-side milling, the large face milling amount is 25mm, and the small face milling amount is 15mm;

[0046] Step 4: Heating in the large slab hea...

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Abstract

The invention provides a soaking high-temperature production method for a 6-series automobile plate, and mainly relates to the technical field of automobile plate machining. The soaking high-temperature production method for the 6-series automobile plate comprises the following steps of casting, large slab ingot homogenizing treatment, large slab ingot surface milling, heating furnace heating, hot rolling, cold rolling, continuous annealing line solution treatment and finished product obtaining. The method has the beneficial effects that homogenizing heat treatment is carried out through a special homogenizing furnace, the heating rate can be increased, rapid cooling can be carried out after homogenizing is completed, the internal quality of a large slab ingot is higher, the structure is more uniform, meanwhile, the homogenizing treatment time of a heating furnace is omitted, and the production efficiency of the heating furnace is improved; the large slab ingot is subjected to high-temperature rolling, intermediate annealing is omitted, production passes are reduced, and the process route is shorter, so that the production efficiency is improved, and the product quality is also greatly improved.

Description

technical field [0001] The invention mainly relates to the technical field of automobile plate processing, in particular to a soaking high-temperature production method for 6-series automobile plates. Background technique [0002] The domestic auto sheet business has just started and is in the stage of market research and development and small batch application. There are already mature technical solutions abroad, because the use of auto sheets has high requirements on material performance, edge wrapping, bending, surface and material formability At present, in the production and processing of automobile panels in China, the uneven grain structure obtained by using the existing processing methods is relatively coarse, the performance is unstable, and the product quality is low, which brings inconvenience to the production of domestic automobile panels. Contents of the invention [0003] In order to solve the deficiencies of the prior art, the present invention provides a h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D8/02C22F1/04C22C1/03
CPCC21D8/0226C21D8/0236C21D8/0247C22F1/04C22C1/026C22C1/03
Inventor 杨立民隋信栋顾华锋张华徐志远陶志民李涛张泽宇李延成王芝东麻慧琳张德镇常骏王浩王乾宇
Owner SHANDONG NANSHAN ALUMINUM
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