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 convent

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

Example Embodiment

[0027] Example 1:

[0028] Step 1: Sollow-casting: Add the raw material to preheat in the smelting furnace, the preheating temperature is 400 ° C, the preheating time is 40min, and the preheated feedstock is heated, and the appropriate amount of intermediate alloy is added, the heating temperature is 630 ° C, heating time 150min; refine the melted metal liquid into the thermal insulating furnace, refining temperature is 700 ° C, refining time is 20 min; cast the qualified aluminum liquid to cast, cast temperature 660 ° C, casting speed is 40mm / min;

[0029] Step 2: The large flat ingot milling surface, the milling face is a four-sided milling or eight-faced milling, and the surface milling is 10mm, and the small surface milling is 3mm;

[0030] Step 3: Uniform treatment of large flat ingots: homogenization treatment temperature is 500 ° C, holding time 2 h;

[0031] Step 4: Hot rolling: The final temperature of the hot rolling is 350 ° C, the thickness of the hot rolled blank is...

Example Embodiment

[0033] Example 2:

[0034] Step 1: Sollow-casting: Add the raw material to preheat in the smelting furnace, the preheating temperature is 450 ° C, the preheating time is 50 min, and the preheated feedstock is heated, and the appropriate amount of intermediate alloy is added, the heating temperature is 700 ° C, heating time 175min; refined metal liquid into the thermal overtield, refining temperature is 730 ° C, refining time is 55min; cast the qualified aluminum solution is cast according to the specified process, cast temperature 690 ° C, casting speed is 50 mm / min;

[0035] Step 2: The large flat ingot milling surface, the milling method is four-sided milling or eight-faced milling, large milling, 18mm, small surface milling, 9mm;

[0036] Step 3: Solar spindle homogenization treatment: homogenization treatment temperature is 550 ° C, the holding time is 11h;

[0037] Step 4: Hot rolling: The final temperature of the hot rolling is 400 ° C, the thickness of the hot rolled blan...

Example Embodiment

[0039] Example 3:

[0040] Step 1: Sollow-casting: Add the raw material to preheat in the smelting furnace, the preheating temperature is 500 ° C, the preheating time is 60 min, and the preheated feedstock is heated, and the appropriate amount of intermediate alloy is added, the heating temperature is 775 ° C, heating time 200min; refine the melted metal liquid into the thermal insulation furnace, refining temperature is 760 ° C, refining time is 90min; cast the qualified aluminum liquid is cast according to the specified process, casting temperature 720 ° C, casting speed is 60 mm / min;

[0041] Step 2: The large flat ingot milling surface, the milling face is a four-sided milling or eight-faced milling, and the surface milling is 25mm, and the small surface milling is 15mm;

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

[0043] Step 4: Hot rolling: The final temperature of the hot rolling is 450 ° C, the...

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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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