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Material for manufacturing pressure sensor and preparation method of pressure sensor

A pressure sensor, mass percentage technology, applied in the field of sensors, can solve the problems of large difference between tensile strength and yield strength, low specific strength of pressure sensor, easy to be affected by radiation, etc. strong effect

Inactive Publication Date: 2011-11-30
宝鸡市三立有色金属有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing pressure sensors are usually made of alloy steel, so the existing pressure sensors have relatively small specific strength, are not corrosion-resistant, are prone to rust, are magnetic and are easily affected by radiation, have fast conduction, poor heat resistance, and tensile strength. The difference between strength and yield strength is large

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0022] The preparation method of the titanium alloy pressure sensor of the present invention is specifically carried out according to the following steps,

[0023] step 1

[0024] Select titanium alloy pressure sensor material, its composition is Ti-6Al-5Mo-5V-4Gr-Fe-2Si, specifically according to the mass percentage, select 5%-6% aluminum, 4%-5% molybdenum, 4%-5% vanadium, 3%-4% chromium, 0.5%-1% iron, 1%-2% silicon, and the rest is 1-2 grade sponge titanium, the total mass percentage of the above components is 100%;

[0025] step 2

[0026] The alloy elements obtained in step 1 are pressed into electrodes with a thousand-ton hydraulic press, and the electrodes are welded by argon arc welding, and then put into a vacuum consumable electric arc furnace for melting through a water-cooled copper crucible, and then ingot casting, blanking, and forging , then heated in an electric furnace at 890°C-970°C, the holding time is 20 minutes to 120 minutes, put the free forging billet ...

Embodiment 1

[0037] Select 5% aluminum, 4% molybdenum, 4% vanadium, 3% chromium, 0.5% iron, 1% silicon, and 82.5% first-grade sponge titanium according to the mass percentage, and the obtained aluminum, molybdenum, vanadium , chromium, iron, silicon, and titanium are pressed into electrodes with a thousand-ton oil press, welded with argon arc welding, and then put into a vacuum consumable electric arc furnace for melting through a water-cooled copper crucible, and then ingot casting, blanking, and forging. Then heat in an electric furnace at 890°C, holding time is 20 minutes, swaging and annealing with a rotary forging machine, annealing temperature is 700°C, holding time is 1 hour, then air cooling, straightening, machine-added titanium alloy pressure sensor.

[0038] After testing, the strength of the prepared titanium alloy pressure sensor is 1250 Mpa, the tensile strength is 890 Mpa, the specific gravity is 4.5g / cm, the melting point is 1668°C, and the thermal conductivity is 0.036cal / c...

Embodiment 2

[0040] Select 6% aluminum according to mass percentage, 5% molybdenum, 5% vanadium, 4% chromium, 1% iron, 2% silicon, and its 77% grade 2 sponge titanium, the aluminum, molybdenum, Vanadium, chromium, iron, silicon, and titanium are pressed into electrodes with a thousand-ton hydraulic press, welded with argon arc welding, and then put into a vacuum consumable electric arc furnace for melting through a water-cooled copper crucible, and then ingot casting, blanking, and forging , then heated in an electric furnace at 970°C, the holding time is 120 minutes, swaged and annealed with a rotary forging machine, the annealing temperature is 800°C, the holding time is 2 hours, then air-cooled, straightened, and the titanium alloy pressure sensor is machined.

[0041] After testing, the strength of the prepared titanium alloy pressure sensor is 1700 Mpa, the tensile strength is 1740 Mpa, the specific gravity is 4.5g / cm, the melting point is 1683°C, and the thermal conductivity is 0.032c...

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Abstract

The invention discloses a material for manufacturing a pressure sensor, which comprises: 5%-6% of aluminum, 4%-5% of molybdenum, 4%-5% of vanadium, 3%-4% of chromium, and 0.5%-1 iron according to the mass percentage %, silicon 1%-2%, and the rest is titanium. The invention also discloses a preparation method of a titanium alloy pressure sensor. The obtained aluminum, molybdenum, vanadium, chromium, iron, silicon, and titanium are pressed into electrodes, and the electrodes are welded by argon arc welding, and then put into a vacuum consumable electric arc furnace Melting in a water-cooled copper crucible, followed by ingot casting, billet opening, and forging, followed by heating in an electric furnace at 890°C-970°C, holding time for 20-120 minutes, swaging and annealing with a swaging machine, annealing temperature 700-800°C, The heat preservation time is 1-2 hours, then air-cooled, straightened, and machined with a titanium alloy pressure sensor. It has the advantages of small specific gravity, light structure, high specific strength, corrosion resistance, non-magnetic, small thermal conductivity, high temperature resistance, and the tensile strength is close to the yield strength.

Description

technical field [0001] The invention belongs to the technical field of sensors, and relates to a material for manufacturing a pressure sensor, and also relates to a preparation method of a titanium alloy pressure sensor. Background technique [0002] Pressure sensors are used in aerospace, aviation, petroleum, chemical, electronics, medical, mechanical automation equipment, and rolling mill automation control components. Existing pressure sensors are usually made of alloy steel, so the existing pressure sensors have relatively small specific strength, are not corrosion-resistant, are prone to rust, are magnetic and are easily affected by radiation, have fast conduction, poor heat resistance, and tensile strength. The difference between strength and yield strength is large. Contents of the invention [0003] The object of the present invention is to provide a material for manufacturing pressure sensors, which has the advantages of small specific gravity, light structure, h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
Inventor 翟丽君郭永喜杨海波
Owner 宝鸡市三立有色金属有限责任公司