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Waste titanium alloy chip continuous repeated multistage rolling-corner extrusion remanufacturing method

A technology of corner extrusion and titanium alloy, which is applied in the direction of metal rolling, can solve the problems that the production and processing efficiency needs to be improved, and achieve the effect of increasing the degree of strain accumulation and improving the processing efficiency

Active Publication Date: 2019-08-02
SHANGHAI DIANJI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the production and processing efficiency of the existing deformation solidification technology needs to be improved

Method used

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  • Waste titanium alloy chip continuous repeated multistage rolling-corner extrusion remanufacturing method

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Embodiment Construction

[0026] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further elaborated below in conjunction with illustrations and specific embodiments.

[0027] combine figure 1 As shown, the waste titanium alloy chips proposed by the present invention are continuously and repeatedly multi-stage rolling-angle extrusion remanufacturing method, comprising the following steps:

[0028] Step (1) Ti-6Al-4V alloy chip recovery pretreatment: use ethanol to clean the titanium alloy chip raw material to remove oil and impurities in the raw material; the chip raw material is made of grade 5 (ASTM Grade5) titanium obtained through end milling The chips generated by the alloy (i.e. Ti-6Al-4V) are preferably cleaned by ultrasonic cleaning, cleaned in an ultrasonic vibration tank, and the ethanol used is 99.9% ethanol;

[0029] Step (2) encapsulation of titanium alloy chips: encapsulating the...

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Abstract

The invention relates to the technical field of metal materials. According to the technical scheme, a continuous repeated multistage rolling-corner extrusion recycling remanufacturing method for wastetitanium alloy chip solidification treatment comprises the following steps of S1, titanium alloy chip recovery pretreatment, S2, titanium alloy chip sheathing packaging, S3, continuous repeated multistage rolling-corner extrusion solidification and S4, annealing pretreatment. According to the method, the continuous repeated multistage rolling-corner extrusion remanufacturing technology is used for waste titanium alloy chip solidification treatment and successfully applied to waste titanium alloy chip recovery and processing, the method is a novel titanium resource solid recycling and remanufacturing method, and waste titanium alloy chips can be efficiently and cleanly converted into block ultra-fine grain high-strength titanium alloy strips.

Description

technical field [0001] The invention relates to the technical field of metal material processing, in particular to a continuous and repeated multi-stage rolling-angle extrusion cycle remanufacturing method for solidification treatment of waste titanium alloy chips. Background technique [0002] The most commonly used technologies for the recycling of waste metal chips are remelting and casting. However, high-temperature melting and casting consumes a lot of energy, causes heavy pollution, and has low efficiency. The casting structure has coarse grains and poor mechanical properties. To avoid high-temperature melting and casting, solid phase recovery can be used. However, titanium alloy (Ti-6Al-4V) is an active metal that is easy to oxidize, and the oxide on the chip surface is TiO 2 TiO2 has a tough texture. Although it can be broken to a certain extent after multi-pass equal channel angular extrusion curing, there are still many oxides with large sizes and continuous distr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/28B21B3/00B21C23/24C22F1/18
CPCB21B1/28B21B3/00B21C23/001B21C23/24C22F1/183
Inventor 罗蓬
Owner SHANGHAI DIANJI UNIV
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