A wear-resistant and high-toughness shell-core structure titanium-based rod and its preparation method
A technology of shell core and rod, which is applied in other manufacturing equipment/tools, mechanical equipment, turbines, etc., can solve the problems of poor wear-resistant treatment effect on the surface of titanium or titanium alloy rods, and achieve easy operation and simple preparation methods Effect
Active Publication Date: 2016-11-16
HARBIN INST OF TECH
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Problems solved by technology
[0003] The present invention aims to solve the problem of poor wear-resisting treatment effect on the surface of titanium or titanium alloy rods, and provides a wear-resistant and high-toughness shell-core structure titanium-based rod and its preparation method
Method used
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specific Embodiment approach 1
[0015] Specific Embodiment 1: In this embodiment, the wear-resistant and high-toughness shell-core structure titanium-based rod is composed of an outer wear-resistant shell and an inner high-toughness core; the shell is a titanium-based composite material containing a reinforcing phase; the core It is titanium or titanium alloy.
specific Embodiment approach 2
[0016] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the thickness of the shell layer is 1-10 mm. Others are the same as the first embodiment.
specific Embodiment approach 3
[0017] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the diameter of the core is 5-400 mm. Others are the same as the first or second embodiment.
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Abstract
The invention claims a wear-resisting high toughness shell core structure titanium-based bar material and preparation method thereof and relates to the titanium-based bar material and preparation method thereof. The bad wear-resisting processing effect of the titanium or titanium alloy bar material can be solved. The wear-resisting high toughness shell core structure titanium-based bar material is composed of the outer wear-resisting shell layer and the inner high toughness core; the shell layer comprises the strengthening titanium-based composite material; the core is the titanium or titanium alloy. The preparation method comprises the steps as follows: 1, preparing the thin wall inner barrel; 2, locating the thin wall inner barrel into the mould; 3, pouring the powder, punching, taking the thin wall inner barrel out; 4, pumping into the vacuum state and hot pressed sintering. The wear-resisting high toughness shell core structure titanium-based bar material can keep high toughness of the titanium alloy and have the high wear-resisting performance of the titanium-based composite material.
Description
technical field [0001] The invention relates to a titanium-based rod and a preparation method thereof. Background technique [0002] Titanium alloy has the advantages of light weight, corrosion resistance and high specific strength, but its wear resistance is poor. In order to improve the wear resistance of titanium alloy, expand its application range and improve its service life, various methods have been tried. Such as nitriding and oxygenizing on the surface of titanium alloy, but due to the thinner permeation layer and poor wear resistance, the application range is very limited. Another way to improve wear resistance is to prepare composite materials. By introducing ceramic phases into the titanium alloy matrix through powder metallurgy or melting casting, the wear resistance of the titanium alloy matrix can be significantly improved, but at the same time the toughness of the material is greatly improved. decline. For flat plates, laser cladding can also be used to pr...
Claims
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IPC IPC(8): B22F3/10B22F5/00
Inventor 黄陆军王博耿林戎旭东崔喜平刘宝玺
Owner HARBIN INST OF TECH