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Integrated water tank type crystallizer used for casting 7 series extra super duralumin alloy

A technology of hard aluminum alloy and crystallizer, which is applied in the field of integral water tank type crystallizer, can solve the problems of ingot casting ingot cracks and uneven distribution of water cooling, and achieve the effect of reducing crack tendency, uniform stress distribution and meeting the use requirements

Active Publication Date: 2010-06-09
NORTHEAST LIGHT ALLOY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an integral water tank type crystallizer for casting 7-series super-hard aluminum alloys to solve the problem of ingot cracks due to stress concentration in the existing crystallizer due to uneven distribution of water cooling

Method used

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  • Integrated water tank type crystallizer used for casting 7 series extra super duralumin alloy
  • Integrated water tank type crystallizer used for casting 7 series extra super duralumin alloy
  • Integrated water tank type crystallizer used for casting 7 series extra super duralumin alloy

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specific Embodiment approach 1

[0015] Specific implementation mode one: as figure 1 and 2 As shown, the integral water tank mold for casting 7-series superhard aluminum alloys described in this embodiment includes a crystallizer box 2 and a mold lower cover 5, and the mold lower cover 5 is airtightly arranged on the mold box 2, on the large surface of the crystallizer box 2, there is a flat through hole 2-1 (the inner wall of the crystallizer box 2 is the inner working surface of the crystallizer), and the crystallizer also includes four The partition 1, the cross-sectional profile shape of the flat through hole 2-1 is composed of two arc segments 2-1-1 and two straight segments 2-1-2, the two straight segments 2-1-2 The two ends are respectively connected by circular arc segments 2-1-1; each circular arc segment 2-1-1 is formed by butting two circular arcs with different diameters; There is an annular groove 2-2, and several water outlet holes 2-3-1 are evenly distributed on the lower end surface of the ...

specific Embodiment approach 2

[0017] Specific implementation mode two: as figure 1 and 2 As shown, the crystallizer in this embodiment also includes two small surface water distribution plates 3 and two large surface water distribution plates 4, and the two small surface water distribution plates 3 are respectively arranged in the annular groove 2-2 Between the two partitions 1 at the end, the two large surface water distribution plates 4 are respectively arranged between the two partitions 1 in the middle of the annular groove 2-2. Two small surface water distribution boards 3 and two large surface water distribution boards 4 can realize secondary water distribution to make the water outlet more uniform. Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0018] Specific implementation mode three: as figure 1 and 2 As shown, in this embodiment, the diameter of the water outlet hole 2-3-1 in the area of ​​600mm centered on the vertical line Y is 4.5, The diameter of the water outlet hole 2-3-1 in the 100mm area on both sides is 4mm, and the water outlet hole in the area where the central angle of the transition between the arc segment 2-1-1 and the straight line segment 2-1-2 is 40° The diameter of 2-3-1 is 3.5 mm, and the diameter of the outlet hole 2-3-1 at the rest of the lower end surface of the annular water distribution hole wall body 2-3 is 3 mm. Other compositions and connections are the same as those in Embodiment 1 or Embodiment 2.

[0019] Segmented control of the crystallizer water hole, the diameter of the water hole is Φ3~4.5mm, the size is different, the large and small surface of the crystallizer is designed with a water baffle, which can realize the independent control of the water strength of the large and sm...

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Abstract

The invention provides an integrated water tank type crystallizer used for casting 7 series extra super duralumin alloy, relating to a crystallizer. The invention solves the problem that cast ingot produces cracks caused by stress concentration as the existing crystallizer is not even in water-cooling distribution. The cross section contour of the flat through hole is composed of two arc sections and two straight line sections, each arc section is formed by butt joint of two arcs in different diameters; the lower end face of all the side walls of crystallizer tank body is opened with an annular groove, the lower end face of the annular water feeding hole wall body between the annular groove and the flat through hole is opened with a plurality of osculums in uniform distribution, the lower end of each osculum is inclined toward the central axis of the flat through hole; and four clapboards are respectively arranged at the two ends of the annular groove and divide the annular groove into four regions. The crystallizer of the invention adopts four-section design and different diameters of osculums to control water flow, so that cooling of cast ingot is even, temperature is ensured to be consistent with stress field distribution, and cast ingot crack tendency is greatly reduced.

Description

technical field [0001] The invention relates to an integral water tank type crystallizer, in particular to an integral water tank type crystallizer for casting superhard aluminum alloy. Background technique [0002] The content of Zn and Cu in the composition content of 7 series superhard aluminum alloy is increased, and the ratio of Zn and Mg is increased, so the alloy has the characteristics of high strength, and Zr is used instead of Cr as the grain refiner, so that the alloy has good quenching At the same time, the content of impurities Fe, Si, Mn is reduced, and the plasticity and fracture toughness of the alloy are improved or increased. Therefore, the alloy has the advantages of high strength, high toughness, and good hardenability. It is used in aerospace materials. Get important applications, suitable for the manufacture of thick-walled parts of large aircraft. However, due to the complex chemical composition and phase composition of this alloy, it shows a great te...

Claims

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Application Information

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IPC IPC(8): B22D7/12B22D21/04
Inventor 郝志刚滕志贵郑力王立娟李海仙赫微吴晓锋
Owner NORTHEAST LIGHT ALLOY CO LTD
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