Method for processing lump non-crystal alloy blank and its device used thereof

An amorphous alloy, processing method technology, applied in metal processing equipment, metal extrusion control equipment, metal extrusion and other directions, to achieve the effect of improving material structure, good stress state, and reducing bamboo breakage

Inactive Publication Date: 2007-04-04
GRIMAT ENG INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to provide a processing method for bulk amorphous alloys, to solve the problem of processing bulk amorphous alloys, especially bulk amorphous alloys with a narrow supercooled liquid zone width, and their composite materials and avoiding crystallization. issues such as

Method used

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  • Method for processing lump non-crystal alloy blank and its device used thereof
  • Method for processing lump non-crystal alloy blank and its device used thereof
  • Method for processing lump non-crystal alloy blank and its device used thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Put the Zr55Al10Cu30Ni5 alloy billet 5 with a diameter of 16mm into the A3 steel ladle 4 with an outer diameter of 25mm in a tight fit, and then put them together in a precise temperature-controlled resistance heating furnace for heating. After ℃, heat and soak for 2 minutes; choose graphite + MoS 2 As a lubricant, it is evenly applied to the surface of the extrusion die 2, castor oil is selected as the extrusion medium 6, it is added to the die cavity of the hydrostatic extruder, and then the heating system of the die cavity is started, and the die cavity Heat it together with the extrusion medium 6 to the set extrusion temperature of 390°C, keep it warm for 5 minutes; take the heated sheath 4 and amorphous billet 5 out of the resistance furnace, and quickly put them into the extrusion In the die cavity of the machine, at an appropriate extrusion rate (strain rate is equivalent to 1×10 -1 the s -1 ) for extrusion processing with an extrusion ratio of 2; the extruded ...

Embodiment 2

[0027] Put the Zr41Ti14Ni10Cu12.5Be22.5 alloy billet 5 with a diameter of 9mm into a pure iron sheath 4 with an outer diameter of 20mm in a tight fit, and then put them together in a precise temperature-controlled resistance heating furnace for heating, and the furnace temperature control is accurate to ±5 ℃, heat it to 390℃ and keep it warm for 2 minutes; choose graphite MoS 2 As a lubricant, it is evenly applied to the surface of the extrusion die 2, castor oil is selected as the extrusion medium 6, it is added to the die cavity of the hydrostatic extruder, and then the heating system of the die cavity is started, and the die cavity Heat it together with the extrusion medium 6 to the set extrusion temperature of 390°C, keep it warm for 5 minutes; take the heated sheath 4 and amorphous billet 5 out of the resistance furnace, and quickly put them into the extrusion In the die cavity of the machine, at an appropriate extrusion rate (strain rate is equivalent to 1×10 -1 the s ...

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Abstract

The present invention relates to processing method of lump non-crystal alloy blank and the apparatus thereof. Hydrostatic extruder with high pressure liquid is used in the processing, non-crystal alloy rod blank is closed inside a canning, heated to extrusion temperature or the overcooling liquid phase area temperature of the non-crystal material, extruding medium is added to the mold cavity of the hydrostatic extruder for extrusion processing, and the canning is finally eliminated to obtain the lump non-crystal alloy blank. The hydrostatic extruder has one increased reverse extruding unit. The present invention solves the problem of forming lump non-crystal alloy and composite material without crystallization. The workpiece of the present invention his good stress state, homogeneous deformation, good lubrication, excellent cooling effect of high pressure liquid, precisely controlled processing temperature and no crystallization.

Description

technical field [0001] The invention relates to a processing method of a bulk amorphous alloy blank and equipment used therein, and belongs to the technical field of metal material processing and forming. Background technique [0002] Bulk amorphous alloys, also known as bulk metallic glass materials, are a class of advanced materials developed rapidly in the 1990s in the world. Due to the rapid cooling conditions necessary for the formation of various amorphous alloys at that time (>10 6 K / s), amorphous alloys can only exist in low-dimensional forms such as powder, wire, and thin strips for a long period of time in the future, which greatly weakens the full potential of amorphous alloy performance and also limits The widespread use of amorphous alloys. Until the 1990s, Inoue and Johnson broke through the limitation of high-speed cooling through the design of alloy composition. Under the cooling speed condition that conventional casting technology can achieve (<10 3...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21C23/00B21C29/00B21C31/00C22C45/00C22F1/00C21D8/00
Inventor 张曙光胡捷朱学新熊柏青石力开
Owner GRIMAT ENG INST CO LTD
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