Manufacturing method of environment-resistant electric connector shell made of titanium alloy

A technology of electrical connectors and titanium alloys, which is applied in the field of manufacturing environment-resistant titanium alloy electrical connector shells, can solve the problems that the electrical connector shells cannot meet harsh environments, and achieve low production costs and high material utilization rates , good environmental performance

Inactive Publication Date: 2011-07-27
HARBIN INST OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the existing electrical connector housing cannot meet the harsh environment, the invention provides a method for manufacturing an environment-resistant titanium alloy electrical connector housing

Method used

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  • Manufacturing method of environment-resistant electric connector shell made of titanium alloy

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specific Embodiment approach 1

[0012] Specific Embodiment 1: The environment-resistant titanium alloy electrical connector housing described in this embodiment is made of a titanium alloy material, and the titanium content in the titanium alloy material is 87.5wt% to 99.8wt%. One or more combinations of Ni, Pd, Ta, Mo, Ru, Zr, V, Sn.

[0013] When the balance is a combination of Ni, Pd, Ta, Mo, Ru, Zr, V, Sn, the ratio of each component is any ratio.

[0014] The ratio of various components in the titanium alloy material can be: Ti-6Al-2Sn-1Mo-1V, Ti-0.05Ni-0.05Ru, Ti-2Al-4Mo-4Zr, Ti-4Al-3Mo-1V, Ti- 5Ta-0.4Mo-0.3Al, Ti-6.5Al-5Zr-1V or Ti-0.3Mo-0.8Ni.

specific Embodiment approach 2

[0015] Embodiment 2: This embodiment describes the method for manufacturing the environment-resistant titanium alloy electrical connector housing described in Embodiment 1. Its specific process is as follows:

[0016] Mold making: first make a mold according to the shape of the electrical connector;

[0017] Mixing process, mixing titanium powder and other metal element powders, wherein the particle diameter of titanium powder and other metal element powders is 10 μm to 120 μm, and the other metal element powders are Ni, Pd, Ta, Mo, Ru, Zr , V, a mixture of metal powders or multiple metal powders in Sn; wherein the content of titanium powder is 87.5wt% to 99.8wt%; the powder mixing time lasts for 0.5 hours to 20 hours, so that all the powders are mixed evenly;

[0018] In the pressing process, the uniformly mixed powder is added to the mold, and a pressure of 30MPa-400MPa is applied at room temperature for 1-10 hours to prepare a powder blank;

[0019] In the sintering proces...

specific Embodiment approach 3

[0025] Embodiment 3: This embodiment is a specific example of Embodiment 2.

[0026] The raw material that adopts in the present embodiment is: Ti-0.3Mo-0.8Ni, concrete technological process is:

[0027] Mold making, first make a mold according to the shape of the electrical connector;

[0028] In the mixing process, the titanium powder, Mo powder and Ni powder with a particle size of 10 μm to 50 μm are mixed, and the mixing time lasts for 12 hours to 14 hours, so that all the powders are mixed evenly;

[0029] Pressing process: Add the uniformly mixed powder into the mold, apply a pressure of 300MPa-400MPa at room temperature and continue for 2 hours to 8 hours, and prepare a powder blank; in this process, the purpose of increasing the density and strength of the blank is achieved;

[0030] Sintering process: put the mold with the powder blank into a vacuum sintering furnace for sintering, and the vacuum degree in the vacuum sintering furnace is controlled at 1×10 -4 Pa, th...

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Abstract

The invention provides an environment-resistant electric connector shell made of a titanium alloy and a manufacturing method thereof, which relates to an electric connector shell and the manufacturingmethod thereof and solves the problem that the existing electric connector shell can not be applied to harsh environment. The electric connector shell is made of titanium alloy material which contains 87.5 to 99.8 wt% of titanium, and one or a plurality of combinations of Ni, Pd, Ta, Mo, Ru, Zr, V and Sn as balance. The electric connector shell can be manufactured by adopting a powder metallurgymethod, and titanium and other elemental metal powders are mixed and then are added to a mould; powder blank is prepared by pressurization, and then pressure sintering or non-pressurized sintering iscarried out by adopting a vacuum sintering furnace; finally, finish machining is carried out according to the shape of the electric connector shell. The electric connector shell can also be manufactured by a precision investment casting method, and the titanium alloy is smelted and cast on a centrifugal titanium casting machine; subsequently, sandblasting and hot isostatic pressing treatment are carried out on a casting, and then the finish machining is carried out according to the shape of the electric connector shell so as to obtain the electric connector shell which is made of titanium alloy and is qualified.

Description

technical field [0001] The invention relates to a method for manufacturing an environment-resistant titanium alloy electrical connector shell suitable for high temperature and highly corrosive atmospheres. Background technique [0002] With the development of aviation, aerospace, and marine industries, on the one hand, the demand for electronic components including electrical connectors has increased, and on the other hand, more stringent performance requirements have been put forward, such as corrosion resistance, high temperature resistance, and high and low temperature. Alternating, shock and vibration resistance, flame retardant, miniaturization, light weight, etc. Electrical connectors are widely used for the connection of various cables. Commonly used materials for traditional electrical connector housings include duralumin (LY12), cast aluminum (ZL102), forged aluminum (LD2), and stainless steel. Common processing methods are machining of hard aluminum plates (rods)...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R13/533C22C14/00B22F3/12B22C9/04H01R43/18
Inventor 陈玉勇常小平孔凡涛陈艳飞肖树龙
Owner HARBIN INST OF TECH
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