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Special hot rolling production method for 6-series automobile plate

A production method and automotive technology, applied in metal rolling, temperature control and other directions, can solve the problems of not meeting the technical requirements of customers, and achieve the effect of good product quality, stable performance and uniform grains

Pending Publication Date: 2021-07-06
SHANDONG NANSHAN ALUMINUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The domestic automobile sheet production technology starts from scratch, and the conventional tank material production method cannot meet the technical requirements of customers

Method used

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  • Special hot rolling production method for 6-series automobile plate
  • Special hot rolling production method for 6-series automobile plate
  • Special hot rolling production method for 6-series automobile plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 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;

[0029] Step 2: 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;

[0030] Step 3: Homogenization treatment of the large slab: the homogenization treatment temperature is 500°C, and the holding time is 2h;

[0031] Step 4: hot rolling: the final t...

Embodiment 2

[0034] 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;

[0035] Step 2: Face milling of the large flat ingot, the milling method is four-side milling or eight-side milling, the milling amount of the large face is 18mm, and the milling amount of the small face is 9mm;

[0036] Step 3: Homogenization treatment of the large slab: the homogenization treatment temperature is 550°C, and the holding time is 11h;

[0037] Step 4: hot rolli...

Embodiment 3

[0040] 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;

[0041] Step 2: 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 25mm, and the milling amount of the small face is 15mm;

[0042] Step 3: Large slab homogenization treatment: the homogenization treatment temperature is 600°C, and the holding time is 20h;

[0043] Step 4: hot rolling: ...

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Abstract

The invention provides a special hot rolling production method for a 6-series automobile plate, and mainly relates to the technical field of automobile plate processing. The special hot rolling production method for the 6-series automobile plate comprises the following steps of casting, large slab ingot surface milling, large slab ingot homogenization treatment, hot rolling, cold rolling, continuous annealing line solution treatment and finished product obtaining. The special hot rolling production method for the 6-series automobile plate has the beneficial effects that high-temperature rolling is adopted, so that the structure and crystal grains of the material are more uniform, the performance is more stable, the product quality is better, and the production efficiency and the comprehensive quality level of a product are improved.

Description

technical field [0001] The invention mainly relates to the technical field of automobile plate processing, in particular to a special hot rolling production method for 6-series automobile plates. Background technique [0002] The production and application of domestic aluminum automobile outer panels are still blank in China at present, and the outer panels used by domestic automobile OEMs are all imported in different forms. With the promotion and application of automobile lightweight in various OEMs, OEMs have more and more demand for aluminum for automobiles, and at the same time, they have higher and higher requirements for the quality of automobile outer panels. In particular, the aging performance of the material, the edge wrapping, the Luoping line and the surface put forward higher requirements. The domestic auto sheet production technology starts from scratch, and the conventional tank material production method cannot meet the technical requirements of customers. ...

Claims

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Application Information

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IPC IPC(8): B21C37/02B21B1/46B21B37/74C22C1/03C22F1/04
CPCB21C37/02B21B1/466B21B37/74C22C1/026C22C1/03C22F1/04B21B2201/06B21B2261/20B21B2263/02
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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