Crystallizer for preparing superhard aluminum alloy flat cast ingot and use method of crystallizer

A hard aluminum alloy and crystallizer technology, which is applied in the field of preparing superhard aluminum alloy flat ingots, can solve the problems of superhard aluminum alloys that are prone to cracks and waste products, reduce cracking defects, facilitate forging, improve surface quality and The effect of internal quality

Active Publication Date: 2014-07-30
NORTHEAST LIGHT ALLOY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims to solve the problem that existing casting tools produce superhard aluminum alloys that are prone to cracks and waste products, and provides a crystallizer for preparing superhard aluminum alloy flat ingots and its use method

Method used

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  • Crystallizer for preparing superhard aluminum alloy flat cast ingot and use method of crystallizer
  • Crystallizer for preparing superhard aluminum alloy flat cast ingot and use method of crystallizer
  • Crystallizer for preparing superhard aluminum alloy flat cast ingot and use method of crystallizer

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specific Embodiment approach 1

[0021] Embodiment 1: A crystallizer for preparing superhard aluminum alloy flat ingots according to this embodiment includes a crystallizer water chamber 1, a water chamber gland 5, a secondary water distribution plate 6 and an oil pressure lid 7; Crystallizer water chamber 1 comprises water inner wall 2, water outer wall 3 and water chamber base 4, and described crystallizer water chamber 1 is integral structure; The water inner wall 2 of described crystallizer water chamber 1 is made of facet 2-1. The three parts of the large surface 2-2 and the transitional surface 2-3 of the large and small surfaces are butted to form an overall structure; the small surface 2-1 is arc-shaped; the transitional surface 2-3 of the large and small surfaces is A circular arc whose radian is smaller than that of the facet 2-1; the junction of the inner surface and the upper surface of the water inner wall 2 of the crystallizer water chamber 1 is set as a plane, and the water outlet hole 2-4 is se...

specific Embodiment approach 2

[0028] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the crystallizer for preparing superhard aluminum alloy slab ingot is made of 2A50 alloy, which has been forged and heat-treated. The forging heating temperature is 400-480°C, the heat treatment parameters are: heating temperature: 549-515°C, holding time: 160min-200min, quenching water temperature: 50-60°C; aging temperature: 152-160°C, holding time: 5h~7h. Others are the same as the first embodiment.

[0029] In this embodiment, 2A50 aluminum alloy with high plasticity in hot state, easy forging and stamping, good process performance and good machinability is used, forged by a 5000-ton hydraulic press and heat-treated as the blank material of the crystallizer, reducing the cost of casting. The coarse-grained layer on the surface of the ingot improves the surface quality and internal quality of the ingot.

specific Embodiment approach 3

[0030] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the radian of the small surface 2-1 is R800-1000 mm. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a crystallizer for preparing a superhard aluminum alloy flat cast ingot and a use method of the crystallizer and relates to a tool for preparing the superhard aluminum alloy flat cast ingot and a use method of the tool.The crystallizer aims at solving the problem that superhard aluminum alloys produced by the existing casting tool have high possibility of crack rejects. The crystallizer for preparing the superhard aluminum alloy flat cast ingot comprises a crystallizer water chamber, a water chamber gland, a secondary water distribution plate and an oil gland, wherein the crystallizer water chamber comprises a water chamber internal wall, a water chamber external wall and a water chamber base; a plane is arranged at a junction between the internal surface and the upper surface of the water chamber internal wall; water outlet holes are formed in the plane; water inlet holes are formed at the two ends of the water chamber gland in a length direction; and a lubricating oil channel is arranged on the water chamber base and located close to the water chamber internal wall on the plane on the outer side of a cavity.The use method comprises the step of arranging a water baffle in a down direction of the cast ingot below the crystallizer when in use.The method reduces crack tendency.

Description

technical field [0001] The invention relates to a tool for preparing a superhard aluminum alloy flat ingot and a use method thereof. Background technique [0002] Superhard aluminum alloy has a series of outstanding advantages such as high strength, resistance to exfoliation corrosion, strong stress corrosion cracking ability, excellent fracture toughness and fatigue resistance, and has important application value in aerospace and military projects. However, superhard aluminum alloy has a high tendency to crack, and it is very easy to produce cracked waste products during the casting process, and even cause the whole root to crack. The casting yield is extremely low, and the yield of traditional tool casting is below 50%. The limitations of traditional casting tools greatly restrict the application of superhard aluminum alloys. Therefore, researching a new superhard aluminum alloy flat ingot tool is the key to promote the application of superhard aluminum alloy. Contents ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/04B22D11/055
Inventor 才智吴晓旭汪滨李海仙王志超韩再旭姜德俊李欣斌刘超
Owner NORTHEAST LIGHT ALLOY CO LTD
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