Manufacturing method of aluminum material for automobile heat insulation sheet

A manufacturing method and technology of heat insulation sheet, which are applied in the field of aluminum material processing, can solve the problems of wrinkling, drawing cracking, large overall size of heat insulation sheet, etc., so as to reduce anisotropy, improve uniformity, improve elongation and Effects of Plastic Deformability

Active Publication Date: 2020-04-07
JIANGSU DINGSHENG NEW MATERIAL JOINT STOCK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the heat shield needs to match the shape of the auto parts, the overall size of the heat shield is generally large and there are many free-form surfaces, which have the characteristics of obvious ups and downs, and are prone to wrinkling and stretching cracks during molding. With the

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] Example 1

[0023] In order to overcome the disadvantages of poor plastic deformation and low elongation of the aluminum material for heat insulation sheet in the prior art, the production process of the aluminum material for heat insulation sheet of the present invention uses a certain amount of scrap aluminum, aluminum ingots and other raw materials, which are melted and cast. Rolling, rolling, annealing and other processes, the production of high elongation aluminum, has the characteristics of ultra-high elongation (for example, 0.1mm, the national standard requires elongation ≥ 12%), and has good application prospects and economic benefits.

[0024] In order to achieve the above objective, the technical solution adopted by the present invention is:

[0025] The production process includes the following steps,

[0026] A high elongation aluminum production process, the production process includes the following steps:

[0027] (1) Preparation of raw materials. The raw material...

Example Embodiment

[0034] Example 2

[0035] (1) Preparation of raw materials. The raw materials include self-produced aluminum scrap or social recycling scrap aluminum and aluminum ingots for remelting.

[0036] (2) In the feeding process, the raw materials are added in the furnace according to the method of adding scrap aluminum first and then adding aluminum ingots;

[0037] (3) The smelting process, when the raw materials in the furnace are completely liquefied, the composition is adjusted according to the 1050 alloy, and the temperature is raised to 725°C and then introduced into the holding furnace;

[0038] (4) Cast-rolling process, the molten aluminum entering the holding furnace is cast-rolled to produce a 6.3mm thick cast-rolled coil;

[0039] (5) Cold rolling and annealing process, the cast-rolled coil is rolled to a thickness of 3.0mm for annealing, during annealing

[0040] Set the furnace gas temperature to 550°C. When the metal temperature reaches 500°C, keep it warm for 8 hours and then coo...

Example Embodiment

[0043] Example 3

[0044] (1) Preparation of raw materials. The raw materials include self-produced aluminum scrap or social recycling scrap aluminum and aluminum ingots for remelting.

[0045] (2) In the feeding process, the raw materials are added in the furnace according to the method of adding scrap aluminum first and then adding aluminum ingots;

[0046] (3) The smelting process, when the raw materials in the furnace are completely liquefied, the composition is adjusted according to the 1050 alloy, and the temperature is raised to 733°C and then introduced into the holding furnace;

[0047] (4) Cast-rolling process, the molten aluminum entering the holding furnace is cast-rolled to produce 6.6mm thick cast-rolled coils;

[0048] (5) Cold rolling and annealing process, the cast-rolled coil is rolled to a thickness of 3.8mm for annealing, during annealing

[0049] Set the furnace gas temperature to 530°C. When the metal temperature reaches 510°C, keep it warm for 5 hours and then cool...

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PUM

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Abstract

The invention belongs to the field of aluminum material processing and relates to a manufacturing method of an aluminum material for an automobile heat insulation sheet. The method comprises the following steps that: raw materials are added into a smelting furnace; after the raw materials in the smelting furnace are completely liquefied, component blending is conducted, and an obtained material isintroduced into a holding furnace after being heated; molten aluminum in the holding furnace is subjected to cast rolling, so that a cast and rolled coil can be produced; and cold rolling and annealing are performed after the cast rolling is performed. According to the manufacturing process of the aluminum material for the automobile high-extensibility heat insulation sheet, waste self-produced aluminum, waste commercial aluminum and aluminum ingots for re-melting are used as raw materials; and through control over a processing rate and annealing, the elongation and plastic deformation ability of the aluminum material are improved.

Description

technical field [0001] The invention belongs to the field of aluminum material processing, and in particular relates to a method for manufacturing an aluminum material for an automobile heat insulation sheet. Background technique [0002] Automobile heat shield is a component around the engine and exhaust system of the automobile. It can effectively isolate heat transfer, reduce problems around the engine, chassis and cab, protect the normal operation of the engine and chassis electronic components, and improve driving comfort. However, since the heat shield needs to match the shape of the auto parts, the overall size of the heat shield is generally large and there are many free-form surfaces, which have the characteristics of obvious ups and downs, and are prone to wrinkles and cracks during molding. With the development of lightweight automobiles and the increase in the demand for energy saving and emission reduction, the thickness of heat shields is also constantly thinni...

Claims

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Application Information

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IPC IPC(8): C22C21/00C22C1/03C22F1/04
CPCC22C1/026C22C1/03C22C21/00C22F1/04
Inventor 吴保剑王毓玮曾元万宝伟
Owner JIANGSU DINGSHENG NEW MATERIAL JOINT STOCK CO LTD
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