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Aluminum material for power station air cooling system and preparation method thereof

An air-cooling system and aluminum material technology, which is applied in the field of aluminum material for power station air-cooling system and its preparation, can solve the problems of insufficient production capacity and high production cost, and achieve the effects of excellent mechanical properties, low cost and reduced production cost

Active Publication Date: 2021-08-03
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

[0003] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide an aluminum material for the air cooling system of a power station and a preparation method thereof, so as to solve the problem of high production cost and poor production capacity in the prior art of using hot-rolled billets to prepare aluminum materials for the air cooling system of a power station. Insufficient technical issues

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Step 1, smelting, casting and rolling: using 1050A alloy, smelting, casting and rolling into a billet with a certain thickness, or using 1060 alloy or 1070 alloy to make a cast-rolled billet, all of which can meet the mechanical performance requirements of aluminum materials used in power station air cooling systems;

[0027] Step 2, rough rolling, intermediate rolling, and edge trimming: rough rolling the billet prepared in step 1, and then rolling it into a billet with a thickness of 0.4-0.8 mm through 4 to 7 passes, and cooling it for 12 hours. It is processed by longitudinal shearing to form a semi-finished product;

[0028] Step 3, finish rolling: After trimming the semi-finished product prepared in step 2, perform finish rolling, and roll it into a finished product with a thickness of 0.1-0.5 mm after 2 to 3 passes, and the processing rate of the passes is controlled at 20 to 50 %, the surface oil content of the finished product after finishing rolling is low and ...

Embodiment 2

[0034] In step 4, in order to ensure the surface purification of aluminum materials, the multi-stage surface purification process is as follows: set the purge time before annealing the finished product, first raise the temperature to 215°C at a rate of 1.8°C / min, keep it for 180min, and then press 0.78°C Raise the temperature to 262°C at a rate of 1 / min, and keep it warm for 1320 minutes; when purging, the opening volume of the blowing fan is 100%. The remaining steps are the same as in Embodiment 1.

[0035] In this embodiment, the mechanical properties of the finished product obtained through annealing treatment are controlled as follows: tensile strength δ b 100-150MPa, elongation ≥ 10%, yield ratio ≥ 60%, with the final mechanical properties of hot-rolled billets, and can be used as air-cooled radiator fins.

[0036] In the embodiment of the present invention, aluminum materials for the air-cooling system of power stations are produced by using cast-rolled billets with lo...

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Abstract

The invention discloses an aluminum material for a power station air-cooling system and a preparation method thereof in the technical field of aluminum material preparation, and aims to solve the problem of high production cost and insufficient production capacity in the prior art of using hot-rolled blanks to prepare aluminum materials for a power station air-cooling system technical problem. The method includes the following steps: performing step-by-step annealing treatment on the finished aluminum product prepared from the cast-rolled slab, and the step-by-step annealing treatment includes: heating up to 170-220°C at a rate of 0.8-2.0°C / min ℃, and keep it warm for 60-600 minutes; raise the temperature to 230-270 ℃ at a rate of 0.5-3.0 ℃ / min, and keep it warm for 480-1850 minutes.

Description

technical field [0001] The invention relates to an aluminum material for an air cooling system of a power station and a preparation method thereof, belonging to the technical field of aluminum material preparation. Background technique [0002] The aluminum material used in the air-cooling system of the power station is mainly used to make the fins of the air-cooled radiator, and its function is to cool the moisture in the air into condensed water. Generally, the aluminum needs to be punched into a specified shape to make radiator fins, which puts forward certain requirements on the mechanical properties of aluminum products, and it must be ensured that cracks and other defects that affect use cannot occur during punching. In order to meet the punching requirements of aluminum materials, hot-rolled aluminum alloy billets are generally used for rolling, because the finished products produced by hot-rolled billets have better mechanical properties and can meet the punching req...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22F1/04
CPCC22F1/04
Inventor 胡珂万宝伟董则防徐成志张彩龙曾元吴保剑
Owner JIANGSU DINGSHENG NEW MATERIAL JOINT STOCK CO LTD
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